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From jpe...@apache.org
Subject trafficserver git commit: Apply clang-format to apidefs.h.in
Date Sun, 10 May 2015 20:20:57 GMT
Repository: trafficserver
Updated Branches:
  refs/heads/master f4c631d17 -> dc45acfdf


Apply clang-format to apidefs.h.in


Project: http://git-wip-us.apache.org/repos/asf/trafficserver/repo
Commit: http://git-wip-us.apache.org/repos/asf/trafficserver/commit/dc45acfd
Tree: http://git-wip-us.apache.org/repos/asf/trafficserver/tree/dc45acfd
Diff: http://git-wip-us.apache.org/repos/asf/trafficserver/diff/dc45acfd

Branch: refs/heads/master
Commit: dc45acfdfc4472577ed904f1ed72f34d7df2f968
Parents: f4c631d
Author: James Peach <jpeach@apache.org>
Authored: Sun May 10 13:10:35 2015 -0700
Committer: James Peach <jpeach@apache.org>
Committed: Sun May 10 13:10:35 2015 -0700

----------------------------------------------------------------------
 lib/ts/apidefs.h.in | 2122 ++++++++++++++++++++++------------------------
 1 file changed, 1019 insertions(+), 1103 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/trafficserver/blob/dc45acfd/lib/ts/apidefs.h.in
----------------------------------------------------------------------
diff --git a/lib/ts/apidefs.h.in b/lib/ts/apidefs.h.in
index 04f4dd9..0690ade 100644
--- a/lib/ts/apidefs.h.in
+++ b/lib/ts/apidefs.h.in
@@ -68,1126 +68,1042 @@
 #endif
 
 #ifdef __cplusplus
-extern "C"
-{
+extern "C" {
 #endif /* __cplusplus */
 
-  /* Version info
-   */
-#define TS_VERSION_STRING             "@TS_VERSION_STRING@"
-#define TS_VERSION_NUMBER              @TS_VERSION_NUMBER@
-#define TS_VERSION_MAJOR               @TS_VERSION_MAJOR@
-#define TS_VERSION_MINOR               @TS_VERSION_MINOR@
-#define TS_VERSION_MICRO               @TS_VERSION_MICRO@
+/* Version info
+ */
+#define TS_VERSION_STRING "@TS_VERSION_STRING@"
+#define TS_VERSION_NUMBER @TS_VERSION_NUMBER @
+#define TS_VERSION_MAJOR @TS_VERSION_MAJOR @
+#define TS_VERSION_MINOR @TS_VERSION_MINOR @
+#define TS_VERSION_MICRO @TS_VERSION_MICRO @
 
-#define TS_HTTP_VERSION(a,b)  ((((a) & 0xFFFF) << 16) | ((b) & 0xFFFF))
-#define TS_HTTP_MINOR(v)      ((v) & 0xFFFF)
-#define TS_HTTP_MAJOR(v)      (((v) >> 16) & 0xFFFF)
+#define TS_HTTP_VERSION(a, b) ((((a)&0xFFFF) << 16) | ((b)&0xFFFF))
+#define TS_HTTP_MINOR(v) ((v)&0xFFFF)
+#define TS_HTTP_MAJOR(v) (((v) >> 16) & 0xFFFF)
 
 #ifndef TS_RES_MEM_PATH
-#define __TS_RES_PATH(x)   #x
-#define _TS_RES_PATH(x)    __TS_RES_PATH (x)
-#define TS_RES_PATH(x)     x __FILE__ ":" _TS_RES_PATH (__LINE__)
-#define TS_RES_MEM_PATH    TS_RES_PATH ("memory/")
+#define __TS_RES_PATH(x) #x
+#define _TS_RES_PATH(x) __TS_RES_PATH(x)
+#define TS_RES_PATH(x) x __FILE__ ":" _TS_RES_PATH(__LINE__)
+#define TS_RES_MEM_PATH TS_RES_PATH("memory/")
 #endif
 
 #define TS_MAX_USER_NAME_LEN 256
 
 #ifndef TS_DEPRECATED
-#define TS_DEPRECATED __attribute__ ((deprecated))
+#define TS_DEPRECATED __attribute__((deprecated))
 #endif
 
-  /**
-      The following struct is used by TSPluginRegister(). It stores
-      registration information about the plugin.
-
-   */
-  typedef struct
-  {
-    char* plugin_name;
-    char* vendor_name;
-    char* support_email;
-  } TSPluginRegistrationInfo;
-
-  /**
-      This set of enums are possible values returned by
-      TSHttpHdrParseReq() and TSHttpHdrParseResp().
-
-   */
-  typedef enum
-  {
-    TS_PARSE_ERROR = -1,
-    TS_PARSE_DONE = 0,
-    TS_PARSE_OK = 1,
-    TS_PARSE_CONT = 2
-  } TSParseResult;
-
-  /**
-      This set of enums represents the possible HTTP types that
-      can be assigned to an HTTP header. When a header is created
-      with TSHttpHdrCreate(), it is automatically assigned a type of
-      TS_HTTP_TYPE_UNKNOWN. You can modify the HTTP type ONCE after it
-      the header is created, using TSHttpHdrTypeSet(). After setting the
-      HTTP type once, you cannot set it again. Use TSHttpHdrTypeGet()
-      to obtain the TSHttpType of an HTTP header.
-
-   */
-  typedef enum
-  {
-    TS_HTTP_TYPE_UNKNOWN,
-    TS_HTTP_TYPE_REQUEST,
-    TS_HTTP_TYPE_RESPONSE
-  } TSHttpType;
-
-  /**
-      This set of enums represents possible return values from
-      TSHttpHdrStatusGet(), which retrieves the status code from an
-      HTTP response header (TSHttpHdrStatusGet() retrieves status codes
-      only from headers of type TS_HTTP_TYPE_RESPONSE). You can also set
-      the TSHttpStatus of a response header using TSHttpHdrStatusSet().
-
-   */
-  typedef enum
-  {
-    TS_HTTP_STATUS_NONE = 0,
-
-    TS_HTTP_STATUS_CONTINUE = 100,
-    TS_HTTP_STATUS_SWITCHING_PROTOCOL = 101,
-
-    TS_HTTP_STATUS_OK = 200,
-    TS_HTTP_STATUS_CREATED = 201,
-    TS_HTTP_STATUS_ACCEPTED = 202,
-    TS_HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION = 203,
-    TS_HTTP_STATUS_NO_CONTENT = 204,
-    TS_HTTP_STATUS_RESET_CONTENT = 205,
-    TS_HTTP_STATUS_PARTIAL_CONTENT = 206,
-    TS_HTTP_STATUS_MULTI_STATUS = 207,
-    TS_HTTP_STATUS_ALREADY_REPORTED = 208,
-    TS_HTTP_STATUS_IM_USED = 211,
-
-    TS_HTTP_STATUS_MULTIPLE_CHOICES = 300,
-    TS_HTTP_STATUS_MOVED_PERMANENTLY = 301,
-    TS_HTTP_STATUS_MOVED_TEMPORARILY = 302,
-    TS_HTTP_STATUS_SEE_OTHER = 303,
-    TS_HTTP_STATUS_NOT_MODIFIED = 304,
-    TS_HTTP_STATUS_USE_PROXY = 305,
-    TS_HTTP_STATUS_TEMPORARY_REDIRECT = 307,
-    TS_HTTP_STATUS_PERMANENT_REDIRECT = 308,
-
-    TS_HTTP_STATUS_BAD_REQUEST = 400,
-    TS_HTTP_STATUS_UNAUTHORIZED = 401,
-    TS_HTTP_STATUS_PAYMENT_REQUIRED = 402,
-    TS_HTTP_STATUS_FORBIDDEN = 403,
-    TS_HTTP_STATUS_NOT_FOUND = 404,
-    TS_HTTP_STATUS_METHOD_NOT_ALLOWED = 405,
-    TS_HTTP_STATUS_NOT_ACCEPTABLE = 406,
-    TS_HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED = 407,
-    TS_HTTP_STATUS_REQUEST_TIMEOUT = 408,
-    TS_HTTP_STATUS_CONFLICT = 409,
-    TS_HTTP_STATUS_GONE = 410,
-    TS_HTTP_STATUS_LENGTH_REQUIRED = 411,
-    TS_HTTP_STATUS_PRECONDITION_FAILED = 412,
-    TS_HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE = 413,
-    TS_HTTP_STATUS_REQUEST_URI_TOO_LONG = 414,
-    TS_HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE = 415,
-    TS_HTTP_STATUS_REQUESTED_RANGE_NOT_SATISFIABLE = 416,
-    TS_HTTP_STATUS_EXPECTATION_FAILED = 417,
-    TS_HTTP_STATUS_UNPROCESSABLE_ENTITY = 422,
-    TS_HTTP_STATUS_LOCKED = 423,
-    TS_HTTP_STATUS_FAILED_DEPENDENCY = 424,
-    TS_HTTP_STATUS_UPGRADE_REQUIRED = 426,
-    TS_HTTP_STATUS_PRECONDITION_REQUIRED = 428,
-    TS_HTTP_STATUS_TOO_MANY_REQUESTS = 429,
-    TS_HTTP_STATUS_REQUEST_HEADER_FIELDS_TOO_LARGE = 431,
-
-    TS_HTTP_STATUS_INTERNAL_SERVER_ERROR = 500,
-    TS_HTTP_STATUS_NOT_IMPLEMENTED = 501,
-    TS_HTTP_STATUS_BAD_GATEWAY = 502,
-    TS_HTTP_STATUS_SERVICE_UNAVAILABLE = 503,
-    TS_HTTP_STATUS_GATEWAY_TIMEOUT = 504,
-    TS_HTTP_STATUS_HTTPVER_NOT_SUPPORTED = 505,
-    TS_HTTP_STATUS_VARIANT_ALSO_NEGOTIATES = 506,
-    TS_HTTP_STATUS_INSUFFICIENT_STORAGE = 507,
-    TS_HTTP_STATUS_LOOP_DETECTED = 508,
-    TS_HTTP_STATUS_NOT_EXTENDED = 510,
-    TS_HTTP_STATUS_NETWORK_AUTHENTICATION_REQUIRED = 511
-
-  } TSHttpStatus;
-
-  /**
-      This set of enums represents the possible hooks where you can
-      set up continuation callbacks. The functions used to register a
-      continuation for a particular hook are:
-
-      TSHttpHookAdd: adds a global hook. You can globally add
-      any hook except for
-       - TS_HTTP_REQUEST_TRANSFORM_HOOK
-       - TS_HTTP_RESPONSE_TRANSFORM_HOOK
-       - TS_HTTP_RESPONSE_CLIENT_HOOK
-
-      The following hooks can ONLY be added globally:
-       - TS_HTTP_SELECT_ALT_HOOK
-       - TS_HTTP_SSN_START_HOOK
-       - TS_HTTP_SSN_CLOSE_HOOK
-
-      TSHttpSsnHookAdd: adds a transaction hook to each transaction
-      within a session. You can only use transaction hooks with this call:
-       - TS_HTTP_READ_REQUEST_HDR_HOOK
-       - TS_HTTP_OS_DNS_HOOK
-       - TS_HTTP_SEND_REQUEST_HDR_HOOK
-       - TS_HTTP_READ_CACHE_HDR_HOOK
-       - TS_HTTP_READ_RESPONSE_HDR_HOOK
-       - TS_HTTP_SEND_RESPONSE_HDR_HOOK
-       - TS_HTTP_REQUEST_TRANSFORM_HOOK
-       - TS_HTTP_RESPONSE_TRANSFORM_HOOK
-       - TS_HTTP_RESPONSE_CLIENT_HOOK
-       - TS_HTTP_TXN_START_HOOK
-       - TS_HTTP_TXN_CLOSE_HOOK
-
-      TSHttpTxnHookAdd: adds a callback at a specific point within
-      an HTTP transaction. The following hooks can be used with this
-      function:
-       - TS_HTTP_READ_REQUEST_HDR_HOOK
-       - TS_HTTP_OS_DNS_HOOK
-       - TS_HTTP_SEND_REQUEST_HDR_HOOK
-       - TS_HTTP_READ_CACHE_HDR_HOOK
-       - TS_HTTP_READ_RESPONSE_HDR_HOOK
-       - TS_HTTP_SEND_RESPONSE_HDR_HOOK
-       - TS_HTTP_REQUEST_TRANSFORM_HOOK
-       - TS_HTTP_RESPONSE_TRANSFORM_HOOK
-       - TS_HTTP_TXN_CLOSE_HOOK
-
-      The two transform hooks can ONLY be added as transaction hooks.
-
-      TS_VCONN_PRE_ACCEPT_HOOK - Called before the SSL hand
-      shake starts.  No handshake data has been read or sent (from the 
-      proxy) at this point
-
-      TS_HTTP_LAST_HOOK _must_ be the last element. Only right place
-      to insert a new element is just before TS_HTTP_LAST_HOOK.
-
-   */
-  typedef enum
-  {
-    TS_HTTP_READ_REQUEST_HDR_HOOK,
-    TS_HTTP_OS_DNS_HOOK,
-    TS_HTTP_SEND_REQUEST_HDR_HOOK,
-    TS_HTTP_READ_CACHE_HDR_HOOK,
-    TS_HTTP_READ_RESPONSE_HDR_HOOK,
-    TS_HTTP_SEND_RESPONSE_HDR_HOOK,
-    TS_HTTP_REQUEST_TRANSFORM_HOOK,
-    TS_HTTP_RESPONSE_TRANSFORM_HOOK,
-    TS_HTTP_SELECT_ALT_HOOK,
-    TS_HTTP_TXN_START_HOOK,
-    TS_HTTP_TXN_CLOSE_HOOK,
-    TS_HTTP_SSN_START_HOOK,
-    TS_HTTP_SSN_CLOSE_HOOK,
-    TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK,
-    TS_HTTP_PRE_REMAP_HOOK,
-    TS_HTTP_POST_REMAP_HOOK,
-    TS_HTTP_RESPONSE_CLIENT_HOOK,
-    // Putting the SSL hooks in the same enum space
-    // So both sets of hooks can be set by the same Hook function
-    TS_SSL_FIRST_HOOK,
-    TS_VCONN_PRE_ACCEPT_HOOK = TS_SSL_FIRST_HOOK,
-    TS_SSL_SNI_HOOK,
-    TS_SSL_CERT_HOOK = TS_SSL_SNI_HOOK,
-    TS_SSL_LAST_HOOK = TS_SSL_CERT_HOOK,
-    TS_HTTP_LAST_HOOK
-  } TSHttpHookID;
-  #define TS_HTTP_READ_REQUEST_PRE_REMAP_HOOK TS_HTTP_PRE_REMAP_HOOK  /* backwards compat */
-
-  /** Plugin lifecycle hooks.
-
-      These are called during lifecycle events of a plugin. They
-      should be set in the plugin initialization function. The
-      continuation is invoked with an event ID specified for each hook
-      and @c NULL for the event data.
-
-      TS_LIFECYCLE_PORTS_INITIALIZED_HOOK
-
-        called once, after the HTTP proxy port data structures have
-        been initialized. In particular, SSL related calls that depend
-        on accept endpoints may be invoked. After this hook is
-        finished, the proxy port sockets are opened and connections
-        are accepted.
-
-        Event: TS_EVENT_LIFECYCLE_PORTS_INITIALIZED
-
-      TS_LIFECYCLE_PORTS_READY_HOOK
-
-        called once, after the sockets have been opened and the accept
-        threads have been started. That is, the ports are ready to
-        accept connections. This is *not* guaranteed to be called
-        before the first connection is accepted.
-
-        Event: TS_EVENT_LIFECYCLE_PORTS_READY_HOOK
-
-      TS_LIFECYCLE_CACHE_READY_HOOK
-
-        called once, after the cache has finished its
-        initialization. It is either online or has failed when this
-        hook is called.
-
-        Event: TS_EVENT_LIFECYCLE_CACHE_READY
-
-      TS_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED_HOOK
-
-        called every time after a server SSL_CTX has finished the initialization.
-        It exposes the initialized SSL_CTX pointer.
-
-        Event: TS_EVENT_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED
-
-      TS_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED_HOOK
-
-        called once, after the client SSL_CTX has finished the initialization.
-        It exposes the initialized SSL_CTX pointer.
-
-        Event: TS_EVENT_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED
-
-      Ordering guarantees:
-
-      - TS_LIFECYCLE_PORTS_INITIALIZED_HOOK before TS_LIFECYCLE_PORTS_READY_HOOK.
-
-      NOTE! ONLY the orderings EXPLICITLY mentioned above are guaranteed.
-      
-   */
-  typedef enum
-  {
-    TS_LIFECYCLE_PORTS_INITIALIZED_HOOK,
-    TS_LIFECYCLE_PORTS_READY_HOOK,
-    TS_LIFECYCLE_CACHE_READY_HOOK,
-    TS_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED_HOOK,
-    TS_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED_HOOK,
-    TS_LIFECYCLE_LAST_HOOK
-  } TSLifecycleHookID;
-
-  /**
-      TSEvents are sent to continuations when they are called back.
-      The TSEvent provides the continuation's handler function with
-      information about the callback. Based on the event it receives,
-      the handler function can decide what to do.
-
-   */
-  typedef enum
-  {
-    TS_EVENT_NONE = 0,
-    TS_EVENT_IMMEDIATE = 1,
-    TS_EVENT_TIMEOUT = 2,
-    TS_EVENT_ERROR = 3,
-    TS_EVENT_CONTINUE = 4,
-
-    TS_EVENT_VCONN_READ_READY = 100,
-    TS_EVENT_VCONN_WRITE_READY = 101,
-    TS_EVENT_VCONN_READ_COMPLETE = 102,
-    TS_EVENT_VCONN_WRITE_COMPLETE = 103,
-    TS_EVENT_VCONN_EOS = 104,
-    TS_EVENT_VCONN_INACTIVITY_TIMEOUT = 105,
-    TS_EVENT_VCONN_ACTIVE_TIMEOUT = 106,
-
-    TS_EVENT_NET_CONNECT = 200,
-    TS_EVENT_NET_CONNECT_FAILED = 201,
-    TS_EVENT_NET_ACCEPT = 202,
-    TS_EVENT_NET_ACCEPT_FAILED = 204,
-
-    /* EVENTS 206 - 212 for internal use */
-    TS_EVENT_INTERNAL_206 = 206,
-    TS_EVENT_INTERNAL_207 = 207,
-    TS_EVENT_INTERNAL_208 = 208,
-    TS_EVENT_INTERNAL_209 = 209,
-    TS_EVENT_INTERNAL_210 = 210,
-    TS_EVENT_INTERNAL_211 = 211,
-    TS_EVENT_INTERNAL_212 = 212,
-
-    TS_EVENT_HOST_LOOKUP = 500,
-    TS_EVENT_CACHE_OPEN_READ = 1102,
-    TS_EVENT_CACHE_OPEN_READ_FAILED = 1103,
-    TS_EVENT_CACHE_OPEN_WRITE = 1108,
-    TS_EVENT_CACHE_OPEN_WRITE_FAILED = 1109,
-    TS_EVENT_CACHE_REMOVE = 1112,
-    TS_EVENT_CACHE_REMOVE_FAILED = 1113,
-    TS_EVENT_CACHE_SCAN = 1120,
-    TS_EVENT_CACHE_SCAN_FAILED = 1121,
-    TS_EVENT_CACHE_SCAN_OBJECT = 1122,
-    TS_EVENT_CACHE_SCAN_OPERATION_BLOCKED = 1123,
-    TS_EVENT_CACHE_SCAN_OPERATION_FAILED = 1124,
-    TS_EVENT_CACHE_SCAN_DONE = 1125,
-
-    TS_EVENT_CACHE_LOOKUP = 1126,
-    TS_EVENT_CACHE_READ = 1127,
-    TS_EVENT_CACHE_DELETE = 1128,
-    TS_EVENT_CACHE_WRITE = 1129,
-    TS_EVENT_CACHE_WRITE_HEADER = 1130,
-    TS_EVENT_CACHE_CLOSE = 1131,
-    TS_EVENT_CACHE_LOOKUP_READY = 1132,
-    TS_EVENT_CACHE_LOOKUP_COMPLETE = 1133,
-    TS_EVENT_CACHE_READ_READY = 1134,
-    TS_EVENT_CACHE_READ_COMPLETE = 1135,
-
-    /* EVENT 1200 for internal use */
-    TS_EVENT_INTERNAL_1200 = 1200,
-
-    /* EVENT 3900 is corresponding to event AIO_EVENT_DONE defined in I_AIO.h */
-    TS_AIO_EVENT_DONE = 3900,
-
-    TS_EVENT_HTTP_CONTINUE = 60000,
-    TS_EVENT_HTTP_ERROR = 60001,
-    TS_EVENT_HTTP_READ_REQUEST_HDR = 60002,
-    TS_EVENT_HTTP_OS_DNS = 60003,
-    TS_EVENT_HTTP_SEND_REQUEST_HDR = 60004,
-    TS_EVENT_HTTP_READ_CACHE_HDR = 60005,
-    TS_EVENT_HTTP_READ_RESPONSE_HDR = 60006,
-    TS_EVENT_HTTP_SEND_RESPONSE_HDR = 60007,
-    TS_EVENT_HTTP_REQUEST_TRANSFORM = 60008,
-    TS_EVENT_HTTP_RESPONSE_TRANSFORM = 60009,
-    TS_EVENT_HTTP_SELECT_ALT = 60010,
-    TS_EVENT_HTTP_TXN_START = 60011,
-    TS_EVENT_HTTP_TXN_CLOSE = 60012,
-    TS_EVENT_HTTP_SSN_START = 60013,
-    TS_EVENT_HTTP_SSN_CLOSE = 60014,
-    TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE = 60015,
-    TS_EVENT_HTTP_PRE_REMAP = 60016,
-    TS_EVENT_HTTP_POST_REMAP = 60017,
-    TS_EVENT_LIFECYCLE_PORTS_INITIALIZED = 60018,
-    TS_EVENT_LIFECYCLE_PORTS_READY = 60019,
-    TS_EVENT_LIFECYCLE_CACHE_READY = 60020,
-    TS_EVENT_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED = 60021,
-    TS_EVENT_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED = 60022,
-    TS_EVENT_VCONN_PRE_ACCEPT = 60023,
-    TS_EVENT_MGMT_UPDATE = 60100,
-
-    /* EVENTS 60200 - 60202 for internal use */
-    TS_EVENT_INTERNAL_60200 = 60200,
-    TS_EVENT_INTERNAL_60201 = 60201,
-    TS_EVENT_INTERNAL_60202 = 60202
-  } TSEvent;
-  #define TS_EVENT_HTTP_READ_REQUEST_PRE_REMAP TS_EVENT_HTTP_PRE_REMAP /* backwards compat */
-
-  typedef enum
-  { TS_SRVSTATE_STATE_UNDEFINED = 0,
-    TS_SRVSTATE_ACTIVE_TIMEOUT,
-    TS_SRVSTATE_BAD_INCOMING_RESPONSE,
-    TS_SRVSTATE_CONNECTION_ALIVE,
-    TS_SRVSTATE_CONNECTION_CLOSED,
-    TS_SRVSTATE_CONNECTION_ERROR,
-    TS_SRVSTATE_INACTIVE_TIMEOUT,
-    TS_SRVSTATE_OPEN_RAW_ERROR,
-    TS_SRVSTATE_PARSE_ERROR,
-    TS_SRVSTATE_TRANSACTION_COMPLETE,
-    TS_SRVSTATE_CONGEST_CONTROL_CONGESTED_ON_F,
-    TS_SRVSTATE_CONGEST_CONTROL_CONGESTED_ON_M
-  } TSServerState;
-
-  typedef enum
-  {
-    TS_LOOKUP_UNDEFINED_LOOKUP,
-    TS_LOOKUP_ICP_SUGGESTED_HOST,
-    TS_LOOKUP_PARENT_PROXY,
-    TS_LOOKUP_ORIGIN_SERVER,
-    TS_LOOKUP_INCOMING_ROUTER,
-    TS_LOOKUP_HOST_NONE
-  } TSLookingUpType;
-
-  typedef enum
-  {
-    TS_CACHE_LOOKUP_MISS,
-    TS_CACHE_LOOKUP_HIT_STALE,
-    TS_CACHE_LOOKUP_HIT_FRESH,
-    TS_CACHE_LOOKUP_SKIPPED
-  } TSCacheLookupResult;
-
-  typedef enum
-  {
-    TS_CACHE_DATA_TYPE_NONE,
-    TS_CACHE_DATA_TYPE_HTTP,
-    TS_CACHE_DATA_TYPE_OTHER
-  } TSCacheDataType;
-
-  typedef enum
-  {
-    TS_CACHE_ERROR_NO_DOC = -20400,
-    TS_CACHE_ERROR_DOC_BUSY = -20401,
-    TS_CACHE_ERROR_NOT_READY = -20407
-  } TSCacheError;
-
-  typedef enum
-  {
-    TS_CACHE_SCAN_RESULT_DONE = 0,
-    TS_CACHE_SCAN_RESULT_CONTINUE = 1,
-    TS_CACHE_SCAN_RESULT_DELETE = 10,
-    TS_CACHE_SCAN_RESULT_DELETE_ALL_ALTERNATES,
-    TS_CACHE_SCAN_RESULT_UPDATE,
-    TS_CACHE_SCAN_RESULT_RETRY
-  } TSCacheScanResult;
-
-  typedef enum
-  {
-    TS_VC_CLOSE_ABORT = -1,
-    TS_VC_CLOSE_NORMAL = 1
-  } TSVConnCloseFlags;
-
-  typedef enum
-  {
-    TS_IOBUFFER_SIZE_INDEX_128 = 0,
-    TS_IOBUFFER_SIZE_INDEX_256 = 1,
-    TS_IOBUFFER_SIZE_INDEX_512 = 2,
-    TS_IOBUFFER_SIZE_INDEX_1K = 3,
-    TS_IOBUFFER_SIZE_INDEX_2K = 4,
-    TS_IOBUFFER_SIZE_INDEX_4K = 5,
-    TS_IOBUFFER_SIZE_INDEX_8K = 6,
-    TS_IOBUFFER_SIZE_INDEX_16K = 7,
-    TS_IOBUFFER_SIZE_INDEX_32K = 8,
-    TS_IOBUFFER_SIZE_INDEX_64K = 9,
-    TS_IOBUFFER_SIZE_INDEX_128K = 10,
-    TS_IOBUFFER_SIZE_INDEX_256K = 11,
-    TS_IOBUFFER_SIZE_INDEX_512K = 12,
-    TS_IOBUFFER_SIZE_INDEX_1M = 13,
-    TS_IOBUFFER_SIZE_INDEX_2M = 14
-  } TSIOBufferSizeIndex;
-
-  /**
-      Starting 2.0, SDK now follows same versioning as Traffic Server.
-   */
-  typedef enum
-  {
-    TS_SDK_VERSION_2_0 = 0,
-    TS_SDK_VERSION_3_0
-  } TSSDKVersion;
-
-  typedef enum
-  {
-    TS_ERROR = -1,
-    TS_SUCCESS = 0
-  } TSReturnCode;
-
-  typedef enum
-  {
-    NO_CALLBACK = 0,
-    AFTER_HEADER ,
-    AFTER_BODY
-  } TSFetchWakeUpOptions;
+/**
+    The following struct is used by TSPluginRegister(). It stores
+    registration information about the plugin.
+
+ */
+typedef struct {
+  char *plugin_name;
+  char *vendor_name;
+  char *support_email;
+} TSPluginRegistrationInfo;
+
+/**
+    This set of enums are possible values returned by
+    TSHttpHdrParseReq() and TSHttpHdrParseResp().
+
+ */
+typedef enum { TS_PARSE_ERROR = -1, TS_PARSE_DONE = 0, TS_PARSE_OK = 1, TS_PARSE_CONT = 2 } TSParseResult;
+
+/**
+    This set of enums represents the possible HTTP types that
+    can be assigned to an HTTP header. When a header is created
+    with TSHttpHdrCreate(), it is automatically assigned a type of
+    TS_HTTP_TYPE_UNKNOWN. You can modify the HTTP type ONCE after it
+    the header is created, using TSHttpHdrTypeSet(). After setting the
+    HTTP type once, you cannot set it again. Use TSHttpHdrTypeGet()
+    to obtain the TSHttpType of an HTTP header.
+
+ */
+typedef enum { TS_HTTP_TYPE_UNKNOWN, TS_HTTP_TYPE_REQUEST, TS_HTTP_TYPE_RESPONSE } TSHttpType;
+
+/**
+    This set of enums represents possible return values from
+    TSHttpHdrStatusGet(), which retrieves the status code from an
+    HTTP response header (TSHttpHdrStatusGet() retrieves status codes
+    only from headers of type TS_HTTP_TYPE_RESPONSE). You can also set
+    the TSHttpStatus of a response header using TSHttpHdrStatusSet().
+
+ */
+typedef enum {
+  TS_HTTP_STATUS_NONE = 0,
+
+  TS_HTTP_STATUS_CONTINUE = 100,
+  TS_HTTP_STATUS_SWITCHING_PROTOCOL = 101,
+
+  TS_HTTP_STATUS_OK = 200,
+  TS_HTTP_STATUS_CREATED = 201,
+  TS_HTTP_STATUS_ACCEPTED = 202,
+  TS_HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION = 203,
+  TS_HTTP_STATUS_NO_CONTENT = 204,
+  TS_HTTP_STATUS_RESET_CONTENT = 205,
+  TS_HTTP_STATUS_PARTIAL_CONTENT = 206,
+  TS_HTTP_STATUS_MULTI_STATUS = 207,
+  TS_HTTP_STATUS_ALREADY_REPORTED = 208,
+  TS_HTTP_STATUS_IM_USED = 211,
+
+  TS_HTTP_STATUS_MULTIPLE_CHOICES = 300,
+  TS_HTTP_STATUS_MOVED_PERMANENTLY = 301,
+  TS_HTTP_STATUS_MOVED_TEMPORARILY = 302,
+  TS_HTTP_STATUS_SEE_OTHER = 303,
+  TS_HTTP_STATUS_NOT_MODIFIED = 304,
+  TS_HTTP_STATUS_USE_PROXY = 305,
+  TS_HTTP_STATUS_TEMPORARY_REDIRECT = 307,
+  TS_HTTP_STATUS_PERMANENT_REDIRECT = 308,
+
+  TS_HTTP_STATUS_BAD_REQUEST = 400,
+  TS_HTTP_STATUS_UNAUTHORIZED = 401,
+  TS_HTTP_STATUS_PAYMENT_REQUIRED = 402,
+  TS_HTTP_STATUS_FORBIDDEN = 403,
+  TS_HTTP_STATUS_NOT_FOUND = 404,
+  TS_HTTP_STATUS_METHOD_NOT_ALLOWED = 405,
+  TS_HTTP_STATUS_NOT_ACCEPTABLE = 406,
+  TS_HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED = 407,
+  TS_HTTP_STATUS_REQUEST_TIMEOUT = 408,
+  TS_HTTP_STATUS_CONFLICT = 409,
+  TS_HTTP_STATUS_GONE = 410,
+  TS_HTTP_STATUS_LENGTH_REQUIRED = 411,
+  TS_HTTP_STATUS_PRECONDITION_FAILED = 412,
+  TS_HTTP_STATUS_REQUEST_ENTITY_TOO_LARGE = 413,
+  TS_HTTP_STATUS_REQUEST_URI_TOO_LONG = 414,
+  TS_HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE = 415,
+  TS_HTTP_STATUS_REQUESTED_RANGE_NOT_SATISFIABLE = 416,
+  TS_HTTP_STATUS_EXPECTATION_FAILED = 417,
+  TS_HTTP_STATUS_UNPROCESSABLE_ENTITY = 422,
+  TS_HTTP_STATUS_LOCKED = 423,
+  TS_HTTP_STATUS_FAILED_DEPENDENCY = 424,
+  TS_HTTP_STATUS_UPGRADE_REQUIRED = 426,
+  TS_HTTP_STATUS_PRECONDITION_REQUIRED = 428,
+  TS_HTTP_STATUS_TOO_MANY_REQUESTS = 429,
+  TS_HTTP_STATUS_REQUEST_HEADER_FIELDS_TOO_LARGE = 431,
+
+  TS_HTTP_STATUS_INTERNAL_SERVER_ERROR = 500,
+  TS_HTTP_STATUS_NOT_IMPLEMENTED = 501,
+  TS_HTTP_STATUS_BAD_GATEWAY = 502,
+  TS_HTTP_STATUS_SERVICE_UNAVAILABLE = 503,
+  TS_HTTP_STATUS_GATEWAY_TIMEOUT = 504,
+  TS_HTTP_STATUS_HTTPVER_NOT_SUPPORTED = 505,
+  TS_HTTP_STATUS_VARIANT_ALSO_NEGOTIATES = 506,
+  TS_HTTP_STATUS_INSUFFICIENT_STORAGE = 507,
+  TS_HTTP_STATUS_LOOP_DETECTED = 508,
+  TS_HTTP_STATUS_NOT_EXTENDED = 510,
+  TS_HTTP_STATUS_NETWORK_AUTHENTICATION_REQUIRED = 511
+
+} TSHttpStatus;
+
+/**
+    This set of enums represents the possible hooks where you can
+    set up continuation callbacks. The functions used to register a
+    continuation for a particular hook are:
+
+    TSHttpHookAdd: adds a global hook. You can globally add
+    any hook except for
+     - TS_HTTP_REQUEST_TRANSFORM_HOOK
+     - TS_HTTP_RESPONSE_TRANSFORM_HOOK
+     - TS_HTTP_RESPONSE_CLIENT_HOOK
+
+    The following hooks can ONLY be added globally:
+     - TS_HTTP_SELECT_ALT_HOOK
+     - TS_HTTP_SSN_START_HOOK
+     - TS_HTTP_SSN_CLOSE_HOOK
+
+    TSHttpSsnHookAdd: adds a transaction hook to each transaction
+    within a session. You can only use transaction hooks with this call:
+     - TS_HTTP_READ_REQUEST_HDR_HOOK
+     - TS_HTTP_OS_DNS_HOOK
+     - TS_HTTP_SEND_REQUEST_HDR_HOOK
+     - TS_HTTP_READ_CACHE_HDR_HOOK
+     - TS_HTTP_READ_RESPONSE_HDR_HOOK
+     - TS_HTTP_SEND_RESPONSE_HDR_HOOK
+     - TS_HTTP_REQUEST_TRANSFORM_HOOK
+     - TS_HTTP_RESPONSE_TRANSFORM_HOOK
+     - TS_HTTP_RESPONSE_CLIENT_HOOK
+     - TS_HTTP_TXN_START_HOOK
+     - TS_HTTP_TXN_CLOSE_HOOK
+
+    TSHttpTxnHookAdd: adds a callback at a specific point within
+    an HTTP transaction. The following hooks can be used with this
+    function:
+     - TS_HTTP_READ_REQUEST_HDR_HOOK
+     - TS_HTTP_OS_DNS_HOOK
+     - TS_HTTP_SEND_REQUEST_HDR_HOOK
+     - TS_HTTP_READ_CACHE_HDR_HOOK
+     - TS_HTTP_READ_RESPONSE_HDR_HOOK
+     - TS_HTTP_SEND_RESPONSE_HDR_HOOK
+     - TS_HTTP_REQUEST_TRANSFORM_HOOK
+     - TS_HTTP_RESPONSE_TRANSFORM_HOOK
+     - TS_HTTP_TXN_CLOSE_HOOK
+
+    The two transform hooks can ONLY be added as transaction hooks.
+
+    TS_VCONN_PRE_ACCEPT_HOOK - Called before the SSL hand
+    shake starts.  No handshake data has been read or sent (from the
+    proxy) at this point
+
+    TS_HTTP_LAST_HOOK _must_ be the last element. Only right place
+    to insert a new element is just before TS_HTTP_LAST_HOOK.
+
+ */
+typedef enum {
+  TS_HTTP_READ_REQUEST_HDR_HOOK,
+  TS_HTTP_OS_DNS_HOOK,
+  TS_HTTP_SEND_REQUEST_HDR_HOOK,
+  TS_HTTP_READ_CACHE_HDR_HOOK,
+  TS_HTTP_READ_RESPONSE_HDR_HOOK,
+  TS_HTTP_SEND_RESPONSE_HDR_HOOK,
+  TS_HTTP_REQUEST_TRANSFORM_HOOK,
+  TS_HTTP_RESPONSE_TRANSFORM_HOOK,
+  TS_HTTP_SELECT_ALT_HOOK,
+  TS_HTTP_TXN_START_HOOK,
+  TS_HTTP_TXN_CLOSE_HOOK,
+  TS_HTTP_SSN_START_HOOK,
+  TS_HTTP_SSN_CLOSE_HOOK,
+  TS_HTTP_CACHE_LOOKUP_COMPLETE_HOOK,
+  TS_HTTP_PRE_REMAP_HOOK,
+  TS_HTTP_POST_REMAP_HOOK,
+  TS_HTTP_RESPONSE_CLIENT_HOOK,
+  // Putting the SSL hooks in the same enum space
+  // So both sets of hooks can be set by the same Hook function
+  TS_SSL_FIRST_HOOK,
+  TS_VCONN_PRE_ACCEPT_HOOK = TS_SSL_FIRST_HOOK,
+  TS_SSL_SNI_HOOK,
+  TS_SSL_CERT_HOOK = TS_SSL_SNI_HOOK,
+  TS_SSL_LAST_HOOK = TS_SSL_CERT_HOOK,
+  TS_HTTP_LAST_HOOK
+} TSHttpHookID;
+#define TS_HTTP_READ_REQUEST_PRE_REMAP_HOOK TS_HTTP_PRE_REMAP_HOOK /* backwards compat */
+
+/** Plugin lifecycle hooks.
+
+    These are called during lifecycle events of a plugin. They
+    should be set in the plugin initialization function. The
+    continuation is invoked with an event ID specified for each hook
+    and @c NULL for the event data.
+
+    TS_LIFECYCLE_PORTS_INITIALIZED_HOOK
+
+      called once, after the HTTP proxy port data structures have
+      been initialized. In particular, SSL related calls that depend
+      on accept endpoints may be invoked. After this hook is
+      finished, the proxy port sockets are opened and connections
+      are accepted.
+
+      Event: TS_EVENT_LIFECYCLE_PORTS_INITIALIZED
+
+    TS_LIFECYCLE_PORTS_READY_HOOK
+
+      called once, after the sockets have been opened and the accept
+      threads have been started. That is, the ports are ready to
+      accept connections. This is *not* guaranteed to be called
+      before the first connection is accepted.
+
+      Event: TS_EVENT_LIFECYCLE_PORTS_READY_HOOK
+
+    TS_LIFECYCLE_CACHE_READY_HOOK
+
+      called once, after the cache has finished its
+      initialization. It is either online or has failed when this
+      hook is called.
+
+      Event: TS_EVENT_LIFECYCLE_CACHE_READY
+
+    TS_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED_HOOK
+
+      called every time after a server SSL_CTX has finished the initialization.
+      It exposes the initialized SSL_CTX pointer.
+
+      Event: TS_EVENT_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED
+
+    TS_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED_HOOK
+
+      called once, after the client SSL_CTX has finished the initialization.
+      It exposes the initialized SSL_CTX pointer.
+
+      Event: TS_EVENT_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED
+
+    Ordering guarantees:
+
+    - TS_LIFECYCLE_PORTS_INITIALIZED_HOOK before TS_LIFECYCLE_PORTS_READY_HOOK.
+
+    NOTE! ONLY the orderings EXPLICITLY mentioned above are guaranteed.
+
+ */
+typedef enum {
+  TS_LIFECYCLE_PORTS_INITIALIZED_HOOK,
+  TS_LIFECYCLE_PORTS_READY_HOOK,
+  TS_LIFECYCLE_CACHE_READY_HOOK,
+  TS_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED_HOOK,
+  TS_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED_HOOK,
+  TS_LIFECYCLE_LAST_HOOK
+} TSLifecycleHookID;
+
+/**
+    TSEvents are sent to continuations when they are called back.
+    The TSEvent provides the continuation's handler function with
+    information about the callback. Based on the event it receives,
+    the handler function can decide what to do.
+
+ */
+typedef enum {
+  TS_EVENT_NONE = 0,
+  TS_EVENT_IMMEDIATE = 1,
+  TS_EVENT_TIMEOUT = 2,
+  TS_EVENT_ERROR = 3,
+  TS_EVENT_CONTINUE = 4,
+
+  TS_EVENT_VCONN_READ_READY = 100,
+  TS_EVENT_VCONN_WRITE_READY = 101,
+  TS_EVENT_VCONN_READ_COMPLETE = 102,
+  TS_EVENT_VCONN_WRITE_COMPLETE = 103,
+  TS_EVENT_VCONN_EOS = 104,
+  TS_EVENT_VCONN_INACTIVITY_TIMEOUT = 105,
+  TS_EVENT_VCONN_ACTIVE_TIMEOUT = 106,
+
+  TS_EVENT_NET_CONNECT = 200,
+  TS_EVENT_NET_CONNECT_FAILED = 201,
+  TS_EVENT_NET_ACCEPT = 202,
+  TS_EVENT_NET_ACCEPT_FAILED = 204,
+
+  /* EVENTS 206 - 212 for internal use */
+  TS_EVENT_INTERNAL_206 = 206,
+  TS_EVENT_INTERNAL_207 = 207,
+  TS_EVENT_INTERNAL_208 = 208,
+  TS_EVENT_INTERNAL_209 = 209,
+  TS_EVENT_INTERNAL_210 = 210,
+  TS_EVENT_INTERNAL_211 = 211,
+  TS_EVENT_INTERNAL_212 = 212,
+
+  TS_EVENT_HOST_LOOKUP = 500,
+  TS_EVENT_CACHE_OPEN_READ = 1102,
+  TS_EVENT_CACHE_OPEN_READ_FAILED = 1103,
+  TS_EVENT_CACHE_OPEN_WRITE = 1108,
+  TS_EVENT_CACHE_OPEN_WRITE_FAILED = 1109,
+  TS_EVENT_CACHE_REMOVE = 1112,
+  TS_EVENT_CACHE_REMOVE_FAILED = 1113,
+  TS_EVENT_CACHE_SCAN = 1120,
+  TS_EVENT_CACHE_SCAN_FAILED = 1121,
+  TS_EVENT_CACHE_SCAN_OBJECT = 1122,
+  TS_EVENT_CACHE_SCAN_OPERATION_BLOCKED = 1123,
+  TS_EVENT_CACHE_SCAN_OPERATION_FAILED = 1124,
+  TS_EVENT_CACHE_SCAN_DONE = 1125,
+
+  TS_EVENT_CACHE_LOOKUP = 1126,
+  TS_EVENT_CACHE_READ = 1127,
+  TS_EVENT_CACHE_DELETE = 1128,
+  TS_EVENT_CACHE_WRITE = 1129,
+  TS_EVENT_CACHE_WRITE_HEADER = 1130,
+  TS_EVENT_CACHE_CLOSE = 1131,
+  TS_EVENT_CACHE_LOOKUP_READY = 1132,
+  TS_EVENT_CACHE_LOOKUP_COMPLETE = 1133,
+  TS_EVENT_CACHE_READ_READY = 1134,
+  TS_EVENT_CACHE_READ_COMPLETE = 1135,
+
+  /* EVENT 1200 for internal use */
+  TS_EVENT_INTERNAL_1200 = 1200,
+
+  /* EVENT 3900 is corresponding to event AIO_EVENT_DONE defined in I_AIO.h */
+  TS_AIO_EVENT_DONE = 3900,
+
+  TS_EVENT_HTTP_CONTINUE = 60000,
+  TS_EVENT_HTTP_ERROR = 60001,
+  TS_EVENT_HTTP_READ_REQUEST_HDR = 60002,
+  TS_EVENT_HTTP_OS_DNS = 60003,
+  TS_EVENT_HTTP_SEND_REQUEST_HDR = 60004,
+  TS_EVENT_HTTP_READ_CACHE_HDR = 60005,
+  TS_EVENT_HTTP_READ_RESPONSE_HDR = 60006,
+  TS_EVENT_HTTP_SEND_RESPONSE_HDR = 60007,
+  TS_EVENT_HTTP_REQUEST_TRANSFORM = 60008,
+  TS_EVENT_HTTP_RESPONSE_TRANSFORM = 60009,
+  TS_EVENT_HTTP_SELECT_ALT = 60010,
+  TS_EVENT_HTTP_TXN_START = 60011,
+  TS_EVENT_HTTP_TXN_CLOSE = 60012,
+  TS_EVENT_HTTP_SSN_START = 60013,
+  TS_EVENT_HTTP_SSN_CLOSE = 60014,
+  TS_EVENT_HTTP_CACHE_LOOKUP_COMPLETE = 60015,
+  TS_EVENT_HTTP_PRE_REMAP = 60016,
+  TS_EVENT_HTTP_POST_REMAP = 60017,
+  TS_EVENT_LIFECYCLE_PORTS_INITIALIZED = 60018,
+  TS_EVENT_LIFECYCLE_PORTS_READY = 60019,
+  TS_EVENT_LIFECYCLE_CACHE_READY = 60020,
+  TS_EVENT_LIFECYCLE_SERVER_SSL_CTX_INITIALIZED = 60021,
+  TS_EVENT_LIFECYCLE_CLIENT_SSL_CTX_INITIALIZED = 60022,
+  TS_EVENT_VCONN_PRE_ACCEPT = 60023,
+  TS_EVENT_MGMT_UPDATE = 60100,
+
+  /* EVENTS 60200 - 60202 for internal use */
+  TS_EVENT_INTERNAL_60200 = 60200,
+  TS_EVENT_INTERNAL_60201 = 60201,
+  TS_EVENT_INTERNAL_60202 = 60202
+} TSEvent;
+#define TS_EVENT_HTTP_READ_REQUEST_PRE_REMAP TS_EVENT_HTTP_PRE_REMAP /* backwards compat */
+
+typedef enum {
+  TS_SRVSTATE_STATE_UNDEFINED = 0,
+  TS_SRVSTATE_ACTIVE_TIMEOUT,
+  TS_SRVSTATE_BAD_INCOMING_RESPONSE,
+  TS_SRVSTATE_CONNECTION_ALIVE,
+  TS_SRVSTATE_CONNECTION_CLOSED,
+  TS_SRVSTATE_CONNECTION_ERROR,
+  TS_SRVSTATE_INACTIVE_TIMEOUT,
+  TS_SRVSTATE_OPEN_RAW_ERROR,
+  TS_SRVSTATE_PARSE_ERROR,
+  TS_SRVSTATE_TRANSACTION_COMPLETE,
+  TS_SRVSTATE_CONGEST_CONTROL_CONGESTED_ON_F,
+  TS_SRVSTATE_CONGEST_CONTROL_CONGESTED_ON_M
+} TSServerState;
+
+typedef enum {
+  TS_LOOKUP_UNDEFINED_LOOKUP,
+  TS_LOOKUP_ICP_SUGGESTED_HOST,
+  TS_LOOKUP_PARENT_PROXY,
+  TS_LOOKUP_ORIGIN_SERVER,
+  TS_LOOKUP_INCOMING_ROUTER,
+  TS_LOOKUP_HOST_NONE
+} TSLookingUpType;
+
+typedef enum {
+  TS_CACHE_LOOKUP_MISS,
+  TS_CACHE_LOOKUP_HIT_STALE,
+  TS_CACHE_LOOKUP_HIT_FRESH,
+  TS_CACHE_LOOKUP_SKIPPED
+} TSCacheLookupResult;
+
+typedef enum { TS_CACHE_DATA_TYPE_NONE, TS_CACHE_DATA_TYPE_HTTP, TS_CACHE_DATA_TYPE_OTHER } TSCacheDataType;
+
+typedef enum { TS_CACHE_ERROR_NO_DOC = -20400, TS_CACHE_ERROR_DOC_BUSY = -20401, TS_CACHE_ERROR_NOT_READY = -20407 } TSCacheError;
+
+typedef enum {
+  TS_CACHE_SCAN_RESULT_DONE = 0,
+  TS_CACHE_SCAN_RESULT_CONTINUE = 1,
+  TS_CACHE_SCAN_RESULT_DELETE = 10,
+  TS_CACHE_SCAN_RESULT_DELETE_ALL_ALTERNATES,
+  TS_CACHE_SCAN_RESULT_UPDATE,
+  TS_CACHE_SCAN_RESULT_RETRY
+} TSCacheScanResult;
+
+typedef enum { TS_VC_CLOSE_ABORT = -1, TS_VC_CLOSE_NORMAL = 1 } TSVConnCloseFlags;
+
+typedef enum {
+  TS_IOBUFFER_SIZE_INDEX_128 = 0,
+  TS_IOBUFFER_SIZE_INDEX_256 = 1,
+  TS_IOBUFFER_SIZE_INDEX_512 = 2,
+  TS_IOBUFFER_SIZE_INDEX_1K = 3,
+  TS_IOBUFFER_SIZE_INDEX_2K = 4,
+  TS_IOBUFFER_SIZE_INDEX_4K = 5,
+  TS_IOBUFFER_SIZE_INDEX_8K = 6,
+  TS_IOBUFFER_SIZE_INDEX_16K = 7,
+  TS_IOBUFFER_SIZE_INDEX_32K = 8,
+  TS_IOBUFFER_SIZE_INDEX_64K = 9,
+  TS_IOBUFFER_SIZE_INDEX_128K = 10,
+  TS_IOBUFFER_SIZE_INDEX_256K = 11,
+  TS_IOBUFFER_SIZE_INDEX_512K = 12,
+  TS_IOBUFFER_SIZE_INDEX_1M = 13,
+  TS_IOBUFFER_SIZE_INDEX_2M = 14
+} TSIOBufferSizeIndex;
+
+/**
+    Starting 2.0, SDK now follows same versioning as Traffic Server.
+ */
+typedef enum { TS_SDK_VERSION_2_0 = 0, TS_SDK_VERSION_3_0 } TSSDKVersion;
+
+typedef enum { TS_ERROR = -1, TS_SUCCESS = 0 } TSReturnCode;
+
+typedef enum { NO_CALLBACK = 0, AFTER_HEADER, AFTER_BODY } TSFetchWakeUpOptions;
 
 #ifndef _HTTP_PROXY_API_ENUMS_H_
 #define _HTTP_PROXY_API_ENUMS_H_
-  /// Server session sharing values - match
-  /// Must be identical to definition in HttpProxyAPIEnums.h
-  typedef enum
-  {
-    TS_SERVER_SESSION_SHARING_MATCH_NONE,
-    TS_SERVER_SESSION_SHARING_MATCH_BOTH,
-    TS_SERVER_SESSION_SHARING_MATCH_IP,
-    TS_SERVER_SESSION_SHARING_MATCH_HOST
-  } TSServerSessionSharingMatchType;
-
-  /// Server session sharing values - pool
-  /// Must be identical to definition in HttpProxyAPIEnums.h
-  typedef enum
-  {
-    TS_SERVER_SESSION_SHARING_POOL_GLOBAL,
-    TS_SERVER_SESSION_SHARING_POOL_THREAD
-  } TSServerSessionSharingPoolType;
+/// Server session sharing values - match
+/// Must be identical to definition in HttpProxyAPIEnums.h
+typedef enum {
+  TS_SERVER_SESSION_SHARING_MATCH_NONE,
+  TS_SERVER_SESSION_SHARING_MATCH_BOTH,
+  TS_SERVER_SESSION_SHARING_MATCH_IP,
+  TS_SERVER_SESSION_SHARING_MATCH_HOST
+} TSServerSessionSharingMatchType;
+
+/// Server session sharing values - pool
+/// Must be identical to definition in HttpProxyAPIEnums.h
+typedef enum { TS_SERVER_SESSION_SHARING_POOL_GLOBAL, TS_SERVER_SESSION_SHARING_POOL_THREAD } TSServerSessionSharingPoolType;
 #endif
 
-  /* librecords types */
-
-  /* The values of this enum must match enum RecT in I_RecDefs.h */
-  typedef enum
-    {
-      TS_RECORDTYPE_NULL        = 0x00,
-      TS_RECORDTYPE_CONFIG      = 0x01,
-      TS_RECORDTYPE_PROCESS     = 0x02,
-      TS_RECORDTYPE_NODE        = 0x04,
-      TS_RECORDTYPE_CLUSTER     = 0x08,
-      TS_RECORDTYPE_LOCAL       = 0x10,
-      TS_RECORDTYPE_PLUGIN      = 0x20,
-      TS_RECORDTYPE_ALL         = 0x3F
-    } TSRecordType;
-
-  /* The values of this enum must match enum RecDataT in I_RecDefs.h */
-  typedef enum
-    {
-      TS_RECORDDATATYPE_NULL = 0,
-      TS_RECORDDATATYPE_INT,
-      TS_RECORDDATATYPE_FLOAT,
-      TS_RECORDDATATYPE_STRING,
-      TS_RECORDDATATYPE_COUNTER,
-      TS_RECORDDATATYPE_STAT_CONST,
-      TS_RECORDDATATYPE_STAT_FX,
-      TS_RECORDDATATYPE_MAX
-    } TSRecordDataType;
-
-  typedef union
-  {
-    int64_t rec_int;
-    float rec_float;
-    char* rec_string;
-    int64_t rec_counter;
-  } TSRecordData;
-
-  /* The values of this enum must match enum RecPersistT in I_RecDefs.h */
-  typedef enum
-    {
-      TS_RECORDP_NULL,
-      TS_RECORDP_PERSISTENT,
-      TS_RECORDP_NON_PERSISTENT
-    } TSRecordPersistType;
-
-  /* The values of this enum must match enum RecUpdateT in I_RecDefs.h */
-  typedef enum
-    {
-      TS_RECORDUPDATE_NULL,
-      TS_RECORDUPDATE_DYNAMIC,
-      TS_RECORDUPDATE_RESTART_TS,
-      TS_RECORDUPDATE_RESTART_TM,
-      TS_RECORDUPDATE_RESTART_TC
-    } TSRecordUpdateType;
-
-  /* The values of this enum must match enum RecCheckT in I_RecDefs.h */
-  typedef enum
-    {
-      TS_RECORDCHECK_NULL,
-      TS_RECORDCHECK_STR,
-      TS_RECORDCHECK_INT,
-      TS_RECORDCHECK_IP
-    } TSRecordCheckType;
-
-  /* The values of this enum must match enum RecModeT in I_RecDefs.h */
-  typedef enum
-    {
-      TS_RECORDMODE_NULL,
-      TS_RECORDMODE_CLIENT,
-      TS_RECORDMODE_SERVER,
-      TS_RECORDMODE_STAND_ALONE
-    } TSRecordModeType;
-
-  /* The values of this enum must match enum RecAccessT in I_RecDefs.h */
-  typedef enum
-    {
-      TS_RECORDACCESS_NULL,
-      TS_RECORDACCESS_NO_ACCESS,
-      TS_RECORDACCESS_READ_ONLY
-    } TSRecordAccessType;
-
-  typedef enum
-  {
-    TS_CONFIG_NULL = -1,
-    TS_CONFIG_URL_REMAP_PRISTINE_HOST_HDR,
-    TS_CONFIG_HTTP_CHUNKING_ENABLED,
-    TS_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED,
-    TS_CONFIG_HTTP_NEGATIVE_CACHING_LIFETIME,
-    TS_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE,
-    TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN,
-    TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT,
-    TS_CONFIG_HTTP_KEEP_ALIVE_POST_OUT,
-    TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS, // DEPRECATED
-    TS_CONFIG_HTTP_SERVER_SESSION_SHARING_POOL,
-    TS_CONFIG_HTTP_SERVER_SESSION_SHARING_MATCH,
-    TS_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT,
-    TS_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT,
-    TS_CONFIG_NET_SOCK_OPTION_FLAG_OUT,
-    TS_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT,
-    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM,
-    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER,
-    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT,
-    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE,
-    TS_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP,
-    TS_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP,
-    TS_CONFIG_HTTP_RESPONSE_SERVER_ENABLED,
-    TS_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR,
-    TS_CONFIG_HTTP_SERVER_TCP_INIT_CWND,
-    TS_CONFIG_HTTP_SEND_HTTP11_REQUESTS,
-    TS_CONFIG_HTTP_CACHE_HTTP,
-    TS_CONFIG_HTTP_CACHE_CLUSTER_CACHE_LOCAL,
-    TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE,
-    TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE,
-    TS_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE,
-    TS_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE,
-    TS_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES,
-    TS_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION,
-    TS_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC,
-    TS_CONFIG_HTTP_CACHE_REQUIRED_HEADERS,
-    TS_CONFIG_HTTP_INSERT_REQUEST_VIA_STR,
-    TS_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR,
-    TS_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME,
-    TS_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME,
-    TS_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME,
-    TS_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME,
-    TS_CONFIG_HTTP_CACHE_MAX_STALE_AGE,
-    TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN,
-    TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT,
-    TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN,
-    TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT,
-    TS_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT,
-    TS_CONFIG_HTTP_ORIGIN_MAX_CONNECTIONS,
-    TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES,
-    TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DEAD_SERVER,
-    TS_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES,
-    TS_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT,
-    TS_CONFIG_HTTP_POST_CONNECT_ATTEMPTS_TIMEOUT,
-    TS_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME,
-    TS_CONFIG_HTTP_DOWN_SERVER_ABORT_THRESHOLD,
-    TS_CONFIG_HTTP_CACHE_FUZZ_TIME,
-    TS_CONFIG_HTTP_CACHE_FUZZ_MIN_TIME,
-    TS_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS,
-    TS_CONFIG_HTTP_BACKGROUND_FILL_ACTIVE_TIMEOUT,
-    TS_CONFIG_HTTP_RESPONSE_SERVER_STR,
-    TS_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR,
-    TS_CONFIG_HTTP_CACHE_FUZZ_PROBABILITY,
-    TS_CONFIG_HTTP_BACKGROUND_FILL_COMPLETED_THRESHOLD,
-    TS_CONFIG_NET_SOCK_PACKET_MARK_OUT,
-    TS_CONFIG_NET_SOCK_PACKET_TOS_OUT,
-    TS_CONFIG_HTTP_INSERT_AGE_IN_RESPONSE,
-    TS_CONFIG_HTTP_CHUNKING_SIZE,
-    TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED,
-    TS_CONFIG_HTTP_FLOW_CONTROL_LOW_WATER_MARK,
-    TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER_MARK,
-    TS_CONFIG_HTTP_CACHE_RANGE_LOOKUP,
-    TS_CONFIG_HTTP_NORMALIZE_AE_GZIP,
-    TS_CONFIG_HTTP_DEFAULT_BUFFER_SIZE,
-    TS_CONFIG_HTTP_DEFAULT_BUFFER_WATER_MARK,
-    TS_CONFIG_HTTP_REQUEST_HEADER_MAX_SIZE,
-    TS_CONFIG_HTTP_RESPONSE_HEADER_MAX_SIZE,
-    TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_ENABLED,
-    TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_LIFETIME,
-    TS_CONFIG_HTTP_ACCEPT_ENCODING_FILTER_ENABLED,
-    TS_CONFIG_SSL_HSTS_MAX_AGE,
-    TS_CONFIG_SSL_HSTS_INCLUDE_SUBDOMAINS,
-    TS_CONFIG_HTTP_CACHE_OPEN_READ_RETRY_TIME,
-    TS_CONFIG_HTTP_CACHE_MAX_OPEN_READ_RETRIES,
-    TS_CONFIG_HTTP_CACHE_RANGE_WRITE,
-    TS_CONFIG_HTTP_POST_CHECK_CONTENT_LENGTH_ENABLED,
-    TS_CONFIG_HTTP_GLOBAL_USER_AGENT_HEADER,
-    TS_CONFIG_HTTP_AUTH_SERVER_SESSION_PRIVATE,
-    TS_CONFIG_LAST_ENTRY
-  } TSOverridableConfigKey;
-
-  /* The TASK pool of threads is the primary method of off-loading continuations from the
-     net-threads. Configure this with proxy.config.task_threads in records.config. */
-  typedef enum
-    {
-      TS_THREAD_POOL_DEFAULT = -1,
-      TS_THREAD_POOL_NET,
-      TS_THREAD_POOL_TASK,
-      /* unlikely you should use these */
-      TS_THREAD_POOL_SSL,
-      TS_THREAD_POOL_DNS,
-      TS_THREAD_POOL_REMAP,
-      TS_THREAD_POOL_CLUSTER,
-      TS_THREAD_POOL_UDP
-    } TSThreadPool;
-
-  typedef int64_t TSHRTime;
-
-  /* The TSMilestonesType is an enum defining all the various milestones ("timers") that
-     we track for a request. */
-  typedef enum
-    {
-      TS_MILESTONE_NULL = -1,
-      TS_MILESTONE_UA_BEGIN,
-      TS_MILESTONE_UA_READ_HEADER_DONE,
-      TS_MILESTONE_UA_BEGIN_WRITE,
-      TS_MILESTONE_UA_CLOSE,
-      TS_MILESTONE_SERVER_FIRST_CONNECT,
-      TS_MILESTONE_SERVER_CONNECT,
-      TS_MILESTONE_SERVER_CONNECT_END,
-      TS_MILESTONE_SERVER_BEGIN_WRITE,
-      TS_MILESTONE_SERVER_FIRST_READ,
-      TS_MILESTONE_SERVER_READ_HEADER_DONE,
-      TS_MILESTONE_SERVER_CLOSE,
-      TS_MILESTONE_CACHE_OPEN_READ_BEGIN,
-      TS_MILESTONE_CACHE_OPEN_READ_END,
-      TS_MILESTONE_CACHE_OPEN_WRITE_BEGIN,
-      TS_MILESTONE_CACHE_OPEN_WRITE_END,
-      TS_MILESTONE_DNS_LOOKUP_BEGIN,
-      TS_MILESTONE_DNS_LOOKUP_END,
-      TS_MILESTONE_SM_START,
-      TS_MILESTONE_SM_FINISH,
-      TS_MILESTONE_LAST_ENTRY
-    } TSMilestonesType;
-
-  /// Operation requested by asynchronous hooks during SSL processing
- typedef enum {
-    TS_SSL_HOOK_OP_DEFAULT, ///< Null / initialization value. Do normal processing.
-    TS_SSL_HOOK_OP_TUNNEL, ///< Switch to blind tunnel
-    TS_SSL_HOOK_OP_TERMINATE, ///< Termination connection / transaction.
-    TS_SSL_HOOK_OP_LAST = TS_SSL_HOOK_OP_TERMINATE ///< End marker value.
-  } TSSslVConnOp;
-
-  /* These typedefs are used with the corresponding TSMgmt*Get functions
-     for storing the values retrieved by those functions. For example,
-     TSMgmtCounterGet() retrieves an TSMgmtCounter. */
-  typedef int64_t TSMgmtInt;
-  typedef int64_t TSMgmtCounter;
-  typedef float TSMgmtFloat;
-  typedef char* TSMgmtString;
-
-  typedef struct tsapi_file* TSFile;
-
-  typedef struct tsapi_mloc* TSMLoc;
-  typedef struct tsapi_mbuffer* TSMBuffer;
-  typedef struct tsapi_httpssn* TSHttpSsn;
-  typedef struct tsapi_httptxn* TSHttpTxn;
-  typedef struct tsapi_ssl_obj* TSSslConnection;
-  typedef struct tsapi_httpaltinfo* TSHttpAltInfo;
-  typedef struct tsapi_mimeparser* TSMimeParser;
-  typedef struct tsapi_httpparser* TSHttpParser;
-  typedef struct tsapi_cachekey* TSCacheKey;
-  typedef struct tsapi_cachehttpinfo* TSCacheHttpInfo;
-  typedef struct tsapi_cachetxn* TSCacheTxn;
-
-  typedef struct tsapi_port* TSPortDescriptor;
-  typedef struct tsapi_vio* TSVIO;
-  typedef struct tsapi_thread* TSThread;
-  typedef struct tsapi_mutex* TSMutex;
-  typedef struct tsapi_config* TSConfig;
-  typedef struct tsapi_cont* TSCont;
-  typedef struct tsapi_cont* TSVConn; /* a VConn is really a specialized TSCont */
-  typedef struct tsapi_ssl_context* TSSslContext;
-  typedef struct tsapi_action* TSAction;
-  typedef struct tsapi_iobuffer* TSIOBuffer;
-  typedef struct tsapi_iobufferdata* TSIOBufferData;
-  typedef struct tsapi_bufferblock* TSIOBufferBlock;
-  typedef struct tsapi_bufferreader* TSIOBufferReader;
-  typedef struct tsapi_hostlookupresult* TSHostLookupResult;
-  typedef struct tsapi_aiocallback* TSAIOCallback;
-
-  typedef void *(*TSThreadFunc) (void* data);
-  typedef int (*TSEventFunc) (TSCont contp, TSEvent event, void* edata);
-  typedef void (*TSConfigDestroyFunc) (void* data);
-
-  typedef struct
-  {
-    int success_event_id;
-    int failure_event_id;
-    int timeout_event_id;
-  } TSFetchEvent;
-
-  typedef struct TSFetchUrlParams
-  {
-    const char* request;
-    int request_len;
-    struct sockaddr_storage ip;
-    int port;
-    TSCont contp;
-    TSFetchEvent events;
-    TSFetchWakeUpOptions options;
-    struct TSFetchUrlParams* next;
-  } TSFetchUrlParams_t;
-
-  /* --------------------------------------------------------------------------
-     Init */
-
-  /**
-      This function must be defined by all plugins. Traffic Server
-      calls this initialization routine when it loads the plugin (at
-      startup), and sets argc and argv appropriately based on the values
-      in plugin.config.
-
-      @param argc the number of initial values specified in plugin.config,
-        plus one. If only the name of your plugin shared object is
-        specified in plugin.config, argc=1.
-      @param argv the vector of arguments. The length of argv is argc.
-        argv[0] is the name of the plugin shared library. Subsequent
-        values of argv are initialization values specified in
-        plugin.config.
-
-   */
-  extern tsapi void TSPluginInit(int argc, const char* argv[]);
-
-  /* --------------------------------------------------------------------------
-     URL schemes */
-  extern tsapi const char* TS_URL_SCHEME_FILE;
-  extern tsapi const char* TS_URL_SCHEME_FTP;
-  extern tsapi const char* TS_URL_SCHEME_GOPHER;
-  extern tsapi const char* TS_URL_SCHEME_HTTP;
-  extern tsapi const char* TS_URL_SCHEME_HTTPS;
-  extern tsapi const char* TS_URL_SCHEME_MAILTO;
-  extern tsapi const char* TS_URL_SCHEME_NEWS;
-  extern tsapi const char* TS_URL_SCHEME_NNTP;
-  extern tsapi const char* TS_URL_SCHEME_PROSPERO;
-  extern tsapi const char* TS_URL_SCHEME_TELNET;
-  extern tsapi const char* TS_URL_SCHEME_TUNNEL;
-  extern tsapi const char* TS_URL_SCHEME_WAIS;
-  extern tsapi const char* TS_URL_SCHEME_PNM;
-  extern tsapi const char* TS_URL_SCHEME_RTSP;
-  extern tsapi const char* TS_URL_SCHEME_RTSPU;
-  extern tsapi const char* TS_URL_SCHEME_MMS;
-  extern tsapi const char* TS_URL_SCHEME_MMSU;
-  extern tsapi const char* TS_URL_SCHEME_MMST;
-
-  /* --------------------------------------------------------------------------
-     URL scheme string lengths */
-  extern tsapi int TS_URL_LEN_FILE;
-  extern tsapi int TS_URL_LEN_FTP;
-  extern tsapi int TS_URL_LEN_GOPHER;
-  extern tsapi int TS_URL_LEN_HTTP;
-  extern tsapi int TS_URL_LEN_HTTPS;
-  extern tsapi int TS_URL_LEN_MAILTO;
-  extern tsapi int TS_URL_LEN_NEWS;
-  extern tsapi int TS_URL_LEN_NNTP;
-  extern tsapi int TS_URL_LEN_PROSPERO;
-  extern tsapi int TS_URL_LEN_TELNET;
-  extern tsapi int TS_URL_LEN_WAIS;
-
-  /* --------------------------------------------------------------------------
-     MIME fields */
-  extern tsapi const char* TS_MIME_FIELD_ACCEPT;
-  extern tsapi const char* TS_MIME_FIELD_ACCEPT_CHARSET;
-  extern tsapi const char* TS_MIME_FIELD_ACCEPT_ENCODING;
-  extern tsapi const char* TS_MIME_FIELD_ACCEPT_LANGUAGE;
-  extern tsapi const char* TS_MIME_FIELD_ACCEPT_RANGES;
-  extern tsapi const char* TS_MIME_FIELD_AGE;
-  extern tsapi const char* TS_MIME_FIELD_ALLOW;
-  extern tsapi const char* TS_MIME_FIELD_APPROVED;
-  extern tsapi const char* TS_MIME_FIELD_AUTHORIZATION;
-  extern tsapi const char* TS_MIME_FIELD_BYTES;
-  extern tsapi const char* TS_MIME_FIELD_CACHE_CONTROL;
-  extern tsapi const char* TS_MIME_FIELD_CLIENT_IP;
-  extern tsapi const char* TS_MIME_FIELD_CONNECTION;
-  extern tsapi const char* TS_MIME_FIELD_CONTENT_BASE;
-  extern tsapi const char* TS_MIME_FIELD_CONTENT_ENCODING;
-  extern tsapi const char* TS_MIME_FIELD_CONTENT_LANGUAGE;
-  extern tsapi const char* TS_MIME_FIELD_CONTENT_LENGTH;
-  extern tsapi const char* TS_MIME_FIELD_CONTENT_LOCATION;
-  extern tsapi const char* TS_MIME_FIELD_CONTENT_MD5;
-  extern tsapi const char* TS_MIME_FIELD_CONTENT_RANGE;
-  extern tsapi const char* TS_MIME_FIELD_CONTENT_TYPE;
-  extern tsapi const char* TS_MIME_FIELD_CONTROL;
-  extern tsapi const char* TS_MIME_FIELD_COOKIE;
-  extern tsapi const char* TS_MIME_FIELD_DATE;
-  extern tsapi const char* TS_MIME_FIELD_DISTRIBUTION;
-  extern tsapi const char* TS_MIME_FIELD_ETAG;
-  extern tsapi const char* TS_MIME_FIELD_EXPECT;
-  extern tsapi const char* TS_MIME_FIELD_EXPIRES;
-  extern tsapi const char* TS_MIME_FIELD_FOLLOWUP_TO;
-  extern tsapi const char* TS_MIME_FIELD_FROM;
-  extern tsapi const char* TS_MIME_FIELD_HOST;
-  extern tsapi const char* TS_MIME_FIELD_IF_MATCH;
-  extern tsapi const char* TS_MIME_FIELD_IF_MODIFIED_SINCE;
-  extern tsapi const char* TS_MIME_FIELD_IF_NONE_MATCH;
-  extern tsapi const char* TS_MIME_FIELD_IF_RANGE;
-  extern tsapi const char* TS_MIME_FIELD_IF_UNMODIFIED_SINCE;
-  extern tsapi const char* TS_MIME_FIELD_KEEP_ALIVE;
-  extern tsapi const char* TS_MIME_FIELD_KEYWORDS;
-  extern tsapi const char* TS_MIME_FIELD_LAST_MODIFIED;
-  extern tsapi const char* TS_MIME_FIELD_LINES;
-  extern tsapi const char* TS_MIME_FIELD_LOCATION;
-  extern tsapi const char* TS_MIME_FIELD_MAX_FORWARDS;
-  extern tsapi const char* TS_MIME_FIELD_MESSAGE_ID;
-  extern tsapi const char* TS_MIME_FIELD_NEWSGROUPS;
-  extern tsapi const char* TS_MIME_FIELD_ORGANIZATION;
-  extern tsapi const char* TS_MIME_FIELD_PATH;
-  extern tsapi const char* TS_MIME_FIELD_PRAGMA;
-  extern tsapi const char* TS_MIME_FIELD_PROXY_AUTHENTICATE;
-  extern tsapi const char* TS_MIME_FIELD_PROXY_AUTHORIZATION;
-  extern tsapi const char* TS_MIME_FIELD_PROXY_CONNECTION;
-  extern tsapi const char* TS_MIME_FIELD_PUBLIC;
-  extern tsapi const char* TS_MIME_FIELD_RANGE;
-  extern tsapi const char* TS_MIME_FIELD_REFERENCES;
-  extern tsapi const char* TS_MIME_FIELD_REFERER;
-  extern tsapi const char* TS_MIME_FIELD_REPLY_TO;
-  extern tsapi const char* TS_MIME_FIELD_RETRY_AFTER;
-  extern tsapi const char* TS_MIME_FIELD_SENDER;
-  extern tsapi const char* TS_MIME_FIELD_SERVER;
-  extern tsapi const char* TS_MIME_FIELD_SET_COOKIE;
-  extern tsapi const char* TS_MIME_FIELD_STRICT_TRANSPORT_SECURITY;
-  extern tsapi const char* TS_MIME_FIELD_SUBJECT;
-  extern tsapi const char* TS_MIME_FIELD_SUMMARY;
-  extern tsapi const char* TS_MIME_FIELD_TE;
-  extern tsapi const char* TS_MIME_FIELD_TRANSFER_ENCODING;
-  extern tsapi const char* TS_MIME_FIELD_UPGRADE;
-  extern tsapi const char* TS_MIME_FIELD_USER_AGENT;
-  extern tsapi const char* TS_MIME_FIELD_VARY;
-  extern tsapi const char* TS_MIME_FIELD_VIA;
-  extern tsapi const char* TS_MIME_FIELD_WARNING;
-  extern tsapi const char* TS_MIME_FIELD_WWW_AUTHENTICATE;
-  extern tsapi const char* TS_MIME_FIELD_XREF;
-  extern tsapi const char* TS_MIME_FIELD_X_FORWARDED_FOR;
-
-  /* --------------------------------------------------------------------------
-     MIME fields string lengths */
-  extern tsapi int TS_MIME_LEN_ACCEPT;
-  extern tsapi int TS_MIME_LEN_ACCEPT_CHARSET;
-  extern tsapi int TS_MIME_LEN_ACCEPT_ENCODING;
-  extern tsapi int TS_MIME_LEN_ACCEPT_LANGUAGE;
-  extern tsapi int TS_MIME_LEN_ACCEPT_RANGES;
-  extern tsapi int TS_MIME_LEN_AGE;
-  extern tsapi int TS_MIME_LEN_ALLOW;
-  extern tsapi int TS_MIME_LEN_APPROVED;
-  extern tsapi int TS_MIME_LEN_AUTHORIZATION;
-  extern tsapi int TS_MIME_LEN_BYTES;
-  extern tsapi int TS_MIME_LEN_CACHE_CONTROL;
-  extern tsapi int TS_MIME_LEN_CLIENT_IP;
-  extern tsapi int TS_MIME_LEN_CONNECTION;
-  extern tsapi int TS_MIME_LEN_CONTENT_BASE;
-  extern tsapi int TS_MIME_LEN_CONTENT_ENCODING;
-  extern tsapi int TS_MIME_LEN_CONTENT_LANGUAGE;
-  extern tsapi int TS_MIME_LEN_CONTENT_LENGTH;
-  extern tsapi int TS_MIME_LEN_CONTENT_LOCATION;
-  extern tsapi int TS_MIME_LEN_CONTENT_MD5;
-  extern tsapi int TS_MIME_LEN_CONTENT_RANGE;
-  extern tsapi int TS_MIME_LEN_CONTENT_TYPE;
-  extern tsapi int TS_MIME_LEN_CONTROL;
-  extern tsapi int TS_MIME_LEN_COOKIE;
-  extern tsapi int TS_MIME_LEN_DATE;
-  extern tsapi int TS_MIME_LEN_DISTRIBUTION;
-  extern tsapi int TS_MIME_LEN_ETAG;
-  extern tsapi int TS_MIME_LEN_EXPECT;
-  extern tsapi int TS_MIME_LEN_EXPIRES;
-  extern tsapi int TS_MIME_LEN_FOLLOWUP_TO;
-  extern tsapi int TS_MIME_LEN_FROM;
-  extern tsapi int TS_MIME_LEN_HOST;
-  extern tsapi int TS_MIME_LEN_IF_MATCH;
-  extern tsapi int TS_MIME_LEN_IF_MODIFIED_SINCE;
-  extern tsapi int TS_MIME_LEN_IF_NONE_MATCH;
-  extern tsapi int TS_MIME_LEN_IF_RANGE;
-  extern tsapi int TS_MIME_LEN_IF_UNMODIFIED_SINCE;
-  extern tsapi int TS_MIME_LEN_KEEP_ALIVE;
-  extern tsapi int TS_MIME_LEN_KEYWORDS;
-  extern tsapi int TS_MIME_LEN_LAST_MODIFIED;
-  extern tsapi int TS_MIME_LEN_LINES;
-  extern tsapi int TS_MIME_LEN_LOCATION;
-  extern tsapi int TS_MIME_LEN_MAX_FORWARDS;
-  extern tsapi int TS_MIME_LEN_MESSAGE_ID;
-  extern tsapi int TS_MIME_LEN_NEWSGROUPS;
-  extern tsapi int TS_MIME_LEN_ORGANIZATION;
-  extern tsapi int TS_MIME_LEN_PATH;
-  extern tsapi int TS_MIME_LEN_PRAGMA;
-  extern tsapi int TS_MIME_LEN_PROXY_AUTHENTICATE;
-  extern tsapi int TS_MIME_LEN_PROXY_AUTHORIZATION;
-  extern tsapi int TS_MIME_LEN_PROXY_CONNECTION;
-  extern tsapi int TS_MIME_LEN_PUBLIC;
-  extern tsapi int TS_MIME_LEN_RANGE;
-  extern tsapi int TS_MIME_LEN_REFERENCES;
-  extern tsapi int TS_MIME_LEN_REFERER;
-  extern tsapi int TS_MIME_LEN_REPLY_TO;
-  extern tsapi int TS_MIME_LEN_RETRY_AFTER;
-  extern tsapi int TS_MIME_LEN_SENDER;
-  extern tsapi int TS_MIME_LEN_SERVER;
-  extern tsapi int TS_MIME_LEN_SET_COOKIE;
-  extern tsapi int TS_MIME_LEN_STRICT_TRANSPORT_SECURITY;
-  extern tsapi int TS_MIME_LEN_SUBJECT;
-  extern tsapi int TS_MIME_LEN_SUMMARY;
-  extern tsapi int TS_MIME_LEN_TE;
-  extern tsapi int TS_MIME_LEN_TRANSFER_ENCODING;
-  extern tsapi int TS_MIME_LEN_UPGRADE;
-  extern tsapi int TS_MIME_LEN_USER_AGENT;
-  extern tsapi int TS_MIME_LEN_VARY;
-  extern tsapi int TS_MIME_LEN_VIA;
-  extern tsapi int TS_MIME_LEN_WARNING;
-  extern tsapi int TS_MIME_LEN_WWW_AUTHENTICATE;
-  extern tsapi int TS_MIME_LEN_XREF;
-  extern tsapi int TS_MIME_LEN_X_FORWARDED_FOR;
-
-  /* --------------------------------------------------------------------------
-     HTTP values */
-  extern tsapi const char* TS_HTTP_VALUE_BYTES;
-  extern tsapi const char* TS_HTTP_VALUE_CHUNKED;
-  extern tsapi const char* TS_HTTP_VALUE_CLOSE;
-  extern tsapi const char* TS_HTTP_VALUE_COMPRESS;
-  extern tsapi const char* TS_HTTP_VALUE_DEFLATE;
-  extern tsapi const char* TS_HTTP_VALUE_GZIP;
-  extern tsapi const char* TS_HTTP_VALUE_IDENTITY;
-  extern tsapi const char* TS_HTTP_VALUE_KEEP_ALIVE;
-  extern tsapi const char* TS_HTTP_VALUE_MAX_AGE;
-  extern tsapi const char* TS_HTTP_VALUE_MAX_STALE;
-  extern tsapi const char* TS_HTTP_VALUE_MIN_FRESH;
-  extern tsapi const char* TS_HTTP_VALUE_MUST_REVALIDATE;
-  extern tsapi const char* TS_HTTP_VALUE_NONE;
-  extern tsapi const char* TS_HTTP_VALUE_NO_CACHE;
-  extern tsapi const char* TS_HTTP_VALUE_NO_STORE;
-  extern tsapi const char* TS_HTTP_VALUE_NO_TRANSFORM;
-  extern tsapi const char* TS_HTTP_VALUE_ONLY_IF_CACHED;
-  extern tsapi const char* TS_HTTP_VALUE_PRIVATE;
-  extern tsapi const char* TS_HTTP_VALUE_PROXY_REVALIDATE;
-  extern tsapi const char* TS_HTTP_VALUE_PUBLIC;
-
-  /* --------------------------------------------------------------------------
-     HTTP values string lengths */
-  extern tsapi int TS_HTTP_LEN_BYTES;
-  extern tsapi int TS_HTTP_LEN_CHUNKED;
-  extern tsapi int TS_HTTP_LEN_CLOSE;
-  extern tsapi int TS_HTTP_LEN_COMPRESS;
-  extern tsapi int TS_HTTP_LEN_DEFLATE;
-  extern tsapi int TS_HTTP_LEN_GZIP;
-  extern tsapi int TS_HTTP_LEN_IDENTITY;
-  extern tsapi int TS_HTTP_LEN_KEEP_ALIVE;
-  extern tsapi int TS_HTTP_LEN_MAX_AGE;
-  extern tsapi int TS_HTTP_LEN_MAX_STALE;
-  extern tsapi int TS_HTTP_LEN_MIN_FRESH;
-  extern tsapi int TS_HTTP_LEN_MUST_REVALIDATE;
-  extern tsapi int TS_HTTP_LEN_NONE;
-  extern tsapi int TS_HTTP_LEN_NO_CACHE;
-  extern tsapi int TS_HTTP_LEN_NO_STORE;
-  extern tsapi int TS_HTTP_LEN_NO_TRANSFORM;
-  extern tsapi int TS_HTTP_LEN_ONLY_IF_CACHED;
-  extern tsapi int TS_HTTP_LEN_PRIVATE;
-  extern tsapi int TS_HTTP_LEN_PROXY_REVALIDATE;
-  extern tsapi int TS_HTTP_LEN_PUBLIC;
-
-  /* --------------------------------------------------------------------------
-     HTTP methods */
-  extern tsapi const char* TS_HTTP_METHOD_CONNECT;
-  extern tsapi const char* TS_HTTP_METHOD_DELETE;
-  extern tsapi const char* TS_HTTP_METHOD_GET;
-  extern tsapi const char* TS_HTTP_METHOD_HEAD;
-  extern tsapi const char* TS_HTTP_METHOD_ICP_QUERY;
-  extern tsapi const char* TS_HTTP_METHOD_OPTIONS;
-  extern tsapi const char* TS_HTTP_METHOD_POST;
-  extern tsapi const char* TS_HTTP_METHOD_PURGE;
-  extern tsapi const char* TS_HTTP_METHOD_PUT;
-  extern tsapi const char* TS_HTTP_METHOD_TRACE;
-  extern tsapi const char* TS_HTTP_METHOD_PUSH;
-
-  /* --------------------------------------------------------------------------
-     HTTP methods string lengths */
-  extern tsapi int TS_HTTP_LEN_CONNECT;
-  extern tsapi int TS_HTTP_LEN_DELETE;
-  extern tsapi int TS_HTTP_LEN_GET;
-  extern tsapi int TS_HTTP_LEN_HEAD;
-  extern tsapi int TS_HTTP_LEN_ICP_QUERY;
-  extern tsapi int TS_HTTP_LEN_OPTIONS;
-  extern tsapi int TS_HTTP_LEN_POST;
-  extern tsapi int TS_HTTP_LEN_PURGE;
-  extern tsapi int TS_HTTP_LEN_PUT;
-  extern tsapi int TS_HTTP_LEN_TRACE;
-  extern tsapi int TS_HTTP_LEN_PUSH;
-
-  /* --------------------------------------------------------------------------
-     TLS Next Protocol well-known protocol names. */
-
-  extern tsapi const char * const TS_NPN_PROTOCOL_HTTP_0_9;
-  extern tsapi const char * const TS_NPN_PROTOCOL_HTTP_1_0;
-  extern tsapi const char * const TS_NPN_PROTOCOL_HTTP_1_1;
-  extern tsapi const char * const TS_NPN_PROTOCOL_HTTP_2_0_14;
-  extern tsapi const char * const TS_NPN_PROTOCOL_HTTP_2_0;
-  extern tsapi const char * const TS_NPN_PROTOCOL_SPDY_1;
-  extern tsapi const char * const TS_NPN_PROTOCOL_SPDY_2;
-  extern tsapi const char * const TS_NPN_PROTOCOL_SPDY_3;
-  extern tsapi const char * const TS_NPN_PROTOCOL_SPDY_3_1;
-
-  extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_0_9;
-  extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_1_0;
-  extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_1_1;
-  extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_1;
-  extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_2;
-  extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_3;
-  extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_3_1;
-  extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_2_0;
-
-  extern tsapi const char * const TS_NPN_PROTOCOL_GROUP_HTTP;
-  extern tsapi const char * const TS_NPN_PROTOCOL_GROUP_HTTP2;
-  extern tsapi const char * const TS_NPN_PROTOCOL_GROUP_SPDY;
-
-  /* --------------------------------------------------------------------------
-     MLoc Constants */
-  /**
-      Use TS_NULL_MLOC as the parent in calls that require a parent
-      when an TSMLoc does not have a parent TSMLoc. For example if
-      the TSMLoc is obtained by a call to TSHttpTxnClientReqGet(),
-
-   */
-  extern tsapi const TSMLoc TS_NULL_MLOC;
+/* librecords types */
+
+/* The values of this enum must match enum RecT in I_RecDefs.h */
+typedef enum {
+  TS_RECORDTYPE_NULL = 0x00,
+  TS_RECORDTYPE_CONFIG = 0x01,
+  TS_RECORDTYPE_PROCESS = 0x02,
+  TS_RECORDTYPE_NODE = 0x04,
+  TS_RECORDTYPE_CLUSTER = 0x08,
+  TS_RECORDTYPE_LOCAL = 0x10,
+  TS_RECORDTYPE_PLUGIN = 0x20,
+  TS_RECORDTYPE_ALL = 0x3F
+} TSRecordType;
+
+/* The values of this enum must match enum RecDataT in I_RecDefs.h */
+typedef enum {
+  TS_RECORDDATATYPE_NULL = 0,
+  TS_RECORDDATATYPE_INT,
+  TS_RECORDDATATYPE_FLOAT,
+  TS_RECORDDATATYPE_STRING,
+  TS_RECORDDATATYPE_COUNTER,
+  TS_RECORDDATATYPE_STAT_CONST,
+  TS_RECORDDATATYPE_STAT_FX,
+  TS_RECORDDATATYPE_MAX
+} TSRecordDataType;
+
+typedef union {
+  int64_t rec_int;
+  float rec_float;
+  char *rec_string;
+  int64_t rec_counter;
+} TSRecordData;
+
+/* The values of this enum must match enum RecPersistT in I_RecDefs.h */
+typedef enum { TS_RECORDP_NULL, TS_RECORDP_PERSISTENT, TS_RECORDP_NON_PERSISTENT } TSRecordPersistType;
+
+/* The values of this enum must match enum RecUpdateT in I_RecDefs.h */
+typedef enum {
+  TS_RECORDUPDATE_NULL,
+  TS_RECORDUPDATE_DYNAMIC,
+  TS_RECORDUPDATE_RESTART_TS,
+  TS_RECORDUPDATE_RESTART_TM,
+  TS_RECORDUPDATE_RESTART_TC
+} TSRecordUpdateType;
+
+/* The values of this enum must match enum RecCheckT in I_RecDefs.h */
+typedef enum { TS_RECORDCHECK_NULL, TS_RECORDCHECK_STR, TS_RECORDCHECK_INT, TS_RECORDCHECK_IP } TSRecordCheckType;
+
+/* The values of this enum must match enum RecModeT in I_RecDefs.h */
+typedef enum { TS_RECORDMODE_NULL, TS_RECORDMODE_CLIENT, TS_RECORDMODE_SERVER, TS_RECORDMODE_STAND_ALONE } TSRecordModeType;
+
+/* The values of this enum must match enum RecAccessT in I_RecDefs.h */
+typedef enum { TS_RECORDACCESS_NULL, TS_RECORDACCESS_NO_ACCESS, TS_RECORDACCESS_READ_ONLY } TSRecordAccessType;
+
+typedef enum {
+  TS_CONFIG_NULL = -1,
+  TS_CONFIG_URL_REMAP_PRISTINE_HOST_HDR,
+  TS_CONFIG_HTTP_CHUNKING_ENABLED,
+  TS_CONFIG_HTTP_NEGATIVE_CACHING_ENABLED,
+  TS_CONFIG_HTTP_NEGATIVE_CACHING_LIFETIME,
+  TS_CONFIG_HTTP_CACHE_WHEN_TO_REVALIDATE,
+  TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_IN,
+  TS_CONFIG_HTTP_KEEP_ALIVE_ENABLED_OUT,
+  TS_CONFIG_HTTP_KEEP_ALIVE_POST_OUT,
+  TS_CONFIG_HTTP_SHARE_SERVER_SESSIONS, // DEPRECATED
+  TS_CONFIG_HTTP_SERVER_SESSION_SHARING_POOL,
+  TS_CONFIG_HTTP_SERVER_SESSION_SHARING_MATCH,
+  TS_CONFIG_NET_SOCK_RECV_BUFFER_SIZE_OUT,
+  TS_CONFIG_NET_SOCK_SEND_BUFFER_SIZE_OUT,
+  TS_CONFIG_NET_SOCK_OPTION_FLAG_OUT,
+  TS_CONFIG_HTTP_FORWARD_PROXY_AUTH_TO_PARENT,
+  TS_CONFIG_HTTP_ANONYMIZE_REMOVE_FROM,
+  TS_CONFIG_HTTP_ANONYMIZE_REMOVE_REFERER,
+  TS_CONFIG_HTTP_ANONYMIZE_REMOVE_USER_AGENT,
+  TS_CONFIG_HTTP_ANONYMIZE_REMOVE_COOKIE,
+  TS_CONFIG_HTTP_ANONYMIZE_REMOVE_CLIENT_IP,
+  TS_CONFIG_HTTP_ANONYMIZE_INSERT_CLIENT_IP,
+  TS_CONFIG_HTTP_RESPONSE_SERVER_ENABLED,
+  TS_CONFIG_HTTP_INSERT_SQUID_X_FORWARDED_FOR,
+  TS_CONFIG_HTTP_SERVER_TCP_INIT_CWND,
+  TS_CONFIG_HTTP_SEND_HTTP11_REQUESTS,
+  TS_CONFIG_HTTP_CACHE_HTTP,
+  TS_CONFIG_HTTP_CACHE_CLUSTER_CACHE_LOCAL,
+  TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_NO_CACHE,
+  TS_CONFIG_HTTP_CACHE_IGNORE_CLIENT_CC_MAX_AGE,
+  TS_CONFIG_HTTP_CACHE_IMS_ON_CLIENT_NO_CACHE,
+  TS_CONFIG_HTTP_CACHE_IGNORE_SERVER_NO_CACHE,
+  TS_CONFIG_HTTP_CACHE_CACHE_RESPONSES_TO_COOKIES,
+  TS_CONFIG_HTTP_CACHE_IGNORE_AUTHENTICATION,
+  TS_CONFIG_HTTP_CACHE_CACHE_URLS_THAT_LOOK_DYNAMIC,
+  TS_CONFIG_HTTP_CACHE_REQUIRED_HEADERS,
+  TS_CONFIG_HTTP_INSERT_REQUEST_VIA_STR,
+  TS_CONFIG_HTTP_INSERT_RESPONSE_VIA_STR,
+  TS_CONFIG_HTTP_CACHE_HEURISTIC_MIN_LIFETIME,
+  TS_CONFIG_HTTP_CACHE_HEURISTIC_MAX_LIFETIME,
+  TS_CONFIG_HTTP_CACHE_GUARANTEED_MIN_LIFETIME,
+  TS_CONFIG_HTTP_CACHE_GUARANTEED_MAX_LIFETIME,
+  TS_CONFIG_HTTP_CACHE_MAX_STALE_AGE,
+  TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_IN,
+  TS_CONFIG_HTTP_KEEP_ALIVE_NO_ACTIVITY_TIMEOUT_OUT,
+  TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_IN,
+  TS_CONFIG_HTTP_TRANSACTION_NO_ACTIVITY_TIMEOUT_OUT,
+  TS_CONFIG_HTTP_TRANSACTION_ACTIVE_TIMEOUT_OUT,
+  TS_CONFIG_HTTP_ORIGIN_MAX_CONNECTIONS,
+  TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES,
+  TS_CONFIG_HTTP_CONNECT_ATTEMPTS_MAX_RETRIES_DEAD_SERVER,
+  TS_CONFIG_HTTP_CONNECT_ATTEMPTS_RR_RETRIES,
+  TS_CONFIG_HTTP_CONNECT_ATTEMPTS_TIMEOUT,
+  TS_CONFIG_HTTP_POST_CONNECT_ATTEMPTS_TIMEOUT,
+  TS_CONFIG_HTTP_DOWN_SERVER_CACHE_TIME,
+  TS_CONFIG_HTTP_DOWN_SERVER_ABORT_THRESHOLD,
+  TS_CONFIG_HTTP_CACHE_FUZZ_TIME,
+  TS_CONFIG_HTTP_CACHE_FUZZ_MIN_TIME,
+  TS_CONFIG_HTTP_DOC_IN_CACHE_SKIP_DNS,
+  TS_CONFIG_HTTP_BACKGROUND_FILL_ACTIVE_TIMEOUT,
+  TS_CONFIG_HTTP_RESPONSE_SERVER_STR,
+  TS_CONFIG_HTTP_CACHE_HEURISTIC_LM_FACTOR,
+  TS_CONFIG_HTTP_CACHE_FUZZ_PROBABILITY,
+  TS_CONFIG_HTTP_BACKGROUND_FILL_COMPLETED_THRESHOLD,
+  TS_CONFIG_NET_SOCK_PACKET_MARK_OUT,
+  TS_CONFIG_NET_SOCK_PACKET_TOS_OUT,
+  TS_CONFIG_HTTP_INSERT_AGE_IN_RESPONSE,
+  TS_CONFIG_HTTP_CHUNKING_SIZE,
+  TS_CONFIG_HTTP_FLOW_CONTROL_ENABLED,
+  TS_CONFIG_HTTP_FLOW_CONTROL_LOW_WATER_MARK,
+  TS_CONFIG_HTTP_FLOW_CONTROL_HIGH_WATER_MARK,
+  TS_CONFIG_HTTP_CACHE_RANGE_LOOKUP,
+  TS_CONFIG_HTTP_NORMALIZE_AE_GZIP,
+  TS_CONFIG_HTTP_DEFAULT_BUFFER_SIZE,
+  TS_CONFIG_HTTP_DEFAULT_BUFFER_WATER_MARK,
+  TS_CONFIG_HTTP_REQUEST_HEADER_MAX_SIZE,
+  TS_CONFIG_HTTP_RESPONSE_HEADER_MAX_SIZE,
+  TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_ENABLED,
+  TS_CONFIG_HTTP_NEGATIVE_REVALIDATING_LIFETIME,
+  TS_CONFIG_HTTP_ACCEPT_ENCODING_FILTER_ENABLED,
+  TS_CONFIG_SSL_HSTS_MAX_AGE,
+  TS_CONFIG_SSL_HSTS_INCLUDE_SUBDOMAINS,
+  TS_CONFIG_HTTP_CACHE_OPEN_READ_RETRY_TIME,
+  TS_CONFIG_HTTP_CACHE_MAX_OPEN_READ_RETRIES,
+  TS_CONFIG_HTTP_CACHE_RANGE_WRITE,
+  TS_CONFIG_HTTP_POST_CHECK_CONTENT_LENGTH_ENABLED,
+  TS_CONFIG_HTTP_GLOBAL_USER_AGENT_HEADER,
+  TS_CONFIG_HTTP_AUTH_SERVER_SESSION_PRIVATE,
+  TS_CONFIG_LAST_ENTRY
+} TSOverridableConfigKey;
+
+/* The TASK pool of threads is the primary method of off-loading continuations from the
+   net-threads. Configure this with proxy.config.task_threads in records.config. */
+typedef enum {
+  TS_THREAD_POOL_DEFAULT = -1,
+  TS_THREAD_POOL_NET,
+  TS_THREAD_POOL_TASK,
+  /* unlikely you should use these */
+  TS_THREAD_POOL_SSL,
+  TS_THREAD_POOL_DNS,
+  TS_THREAD_POOL_REMAP,
+  TS_THREAD_POOL_CLUSTER,
+  TS_THREAD_POOL_UDP
+} TSThreadPool;
+
+typedef int64_t TSHRTime;
+
+/* The TSMilestonesType is an enum defining all the various milestones ("timers") that
+   we track for a request. */
+typedef enum {
+  TS_MILESTONE_NULL = -1,
+  TS_MILESTONE_UA_BEGIN,
+  TS_MILESTONE_UA_READ_HEADER_DONE,
+  TS_MILESTONE_UA_BEGIN_WRITE,
+  TS_MILESTONE_UA_CLOSE,
+  TS_MILESTONE_SERVER_FIRST_CONNECT,
+  TS_MILESTONE_SERVER_CONNECT,
+  TS_MILESTONE_SERVER_CONNECT_END,
+  TS_MILESTONE_SERVER_BEGIN_WRITE,
+  TS_MILESTONE_SERVER_FIRST_READ,
+  TS_MILESTONE_SERVER_READ_HEADER_DONE,
+  TS_MILESTONE_SERVER_CLOSE,
+  TS_MILESTONE_CACHE_OPEN_READ_BEGIN,
+  TS_MILESTONE_CACHE_OPEN_READ_END,
+  TS_MILESTONE_CACHE_OPEN_WRITE_BEGIN,
+  TS_MILESTONE_CACHE_OPEN_WRITE_END,
+  TS_MILESTONE_DNS_LOOKUP_BEGIN,
+  TS_MILESTONE_DNS_LOOKUP_END,
+  TS_MILESTONE_SM_START,
+  TS_MILESTONE_SM_FINISH,
+  TS_MILESTONE_LAST_ENTRY
+} TSMilestonesType;
+
+/// Operation requested by asynchronous hooks during SSL processing
+typedef enum {
+  TS_SSL_HOOK_OP_DEFAULT,                        ///< Null / initialization value. Do normal processing.
+  TS_SSL_HOOK_OP_TUNNEL,                         ///< Switch to blind tunnel
+  TS_SSL_HOOK_OP_TERMINATE,                      ///< Termination connection / transaction.
+  TS_SSL_HOOK_OP_LAST = TS_SSL_HOOK_OP_TERMINATE ///< End marker value.
+} TSSslVConnOp;
+
+/* These typedefs are used with the corresponding TSMgmt*Get functions
+   for storing the values retrieved by those functions. For example,
+   TSMgmtCounterGet() retrieves an TSMgmtCounter. */
+typedef int64_t TSMgmtInt;
+typedef int64_t TSMgmtCounter;
+typedef float TSMgmtFloat;
+typedef char *TSMgmtString;
+
+typedef struct tsapi_file *TSFile;
+
+typedef struct tsapi_mloc *TSMLoc;
+typedef struct tsapi_mbuffer *TSMBuffer;
+typedef struct tsapi_httpssn *TSHttpSsn;
+typedef struct tsapi_httptxn *TSHttpTxn;
+typedef struct tsapi_ssl_obj *TSSslConnection;
+typedef struct tsapi_httpaltinfo *TSHttpAltInfo;
+typedef struct tsapi_mimeparser *TSMimeParser;
+typedef struct tsapi_httpparser *TSHttpParser;
+typedef struct tsapi_cachekey *TSCacheKey;
+typedef struct tsapi_cachehttpinfo *TSCacheHttpInfo;
+typedef struct tsapi_cachetxn *TSCacheTxn;
+
+typedef struct tsapi_port *TSPortDescriptor;
+typedef struct tsapi_vio *TSVIO;
+typedef struct tsapi_thread *TSThread;
+typedef struct tsapi_mutex *TSMutex;
+typedef struct tsapi_config *TSConfig;
+typedef struct tsapi_cont *TSCont;
+typedef struct tsapi_cont *TSVConn; /* a VConn is really a specialized TSCont */
+typedef struct tsapi_ssl_context *TSSslContext;
+typedef struct tsapi_action *TSAction;
+typedef struct tsapi_iobuffer *TSIOBuffer;
+typedef struct tsapi_iobufferdata *TSIOBufferData;
+typedef struct tsapi_bufferblock *TSIOBufferBlock;
+typedef struct tsapi_bufferreader *TSIOBufferReader;
+typedef struct tsapi_hostlookupresult *TSHostLookupResult;
+typedef struct tsapi_aiocallback *TSAIOCallback;
+
+typedef void *(*TSThreadFunc)(void *data);
+typedef int (*TSEventFunc)(TSCont contp, TSEvent event, void *edata);
+typedef void (*TSConfigDestroyFunc)(void *data);
+
+typedef struct {
+  int success_event_id;
+  int failure_event_id;
+  int timeout_event_id;
+} TSFetchEvent;
+
+typedef struct TSFetchUrlParams {
+  const char *request;
+  int request_len;
+  struct sockaddr_storage ip;
+  int port;
+  TSCont contp;
+  TSFetchEvent events;
+  TSFetchWakeUpOptions options;
+  struct TSFetchUrlParams *next;
+} TSFetchUrlParams_t;
+
+/* --------------------------------------------------------------------------
+   Init */
+
+/**
+    This function must be defined by all plugins. Traffic Server
+    calls this initialization routine when it loads the plugin (at
+    startup), and sets argc and argv appropriately based on the values
+    in plugin.config.
+
+    @param argc the number of initial values specified in plugin.config,
+      plus one. If only the name of your plugin shared object is
+      specified in plugin.config, argc=1.
+    @param argv the vector of arguments. The length of argv is argc.
+      argv[0] is the name of the plugin shared library. Subsequent
+      values of argv are initialization values specified in
+      plugin.config.
+
+ */
+extern tsapi void TSPluginInit(int argc, const char *argv[]);
+
+/* --------------------------------------------------------------------------
+   URL schemes */
+extern tsapi const char *TS_URL_SCHEME_FILE;
+extern tsapi const char *TS_URL_SCHEME_FTP;
+extern tsapi const char *TS_URL_SCHEME_GOPHER;
+extern tsapi const char *TS_URL_SCHEME_HTTP;
+extern tsapi const char *TS_URL_SCHEME_HTTPS;
+extern tsapi const char *TS_URL_SCHEME_MAILTO;
+extern tsapi const char *TS_URL_SCHEME_NEWS;
+extern tsapi const char *TS_URL_SCHEME_NNTP;
+extern tsapi const char *TS_URL_SCHEME_PROSPERO;
+extern tsapi const char *TS_URL_SCHEME_TELNET;
+extern tsapi const char *TS_URL_SCHEME_TUNNEL;
+extern tsapi const char *TS_URL_SCHEME_WAIS;
+extern tsapi const char *TS_URL_SCHEME_PNM;
+extern tsapi const char *TS_URL_SCHEME_RTSP;
+extern tsapi const char *TS_URL_SCHEME_RTSPU;
+extern tsapi const char *TS_URL_SCHEME_MMS;
+extern tsapi const char *TS_URL_SCHEME_MMSU;
+extern tsapi const char *TS_URL_SCHEME_MMST;
+
+/* --------------------------------------------------------------------------
+   URL scheme string lengths */
+extern tsapi int TS_URL_LEN_FILE;
+extern tsapi int TS_URL_LEN_FTP;
+extern tsapi int TS_URL_LEN_GOPHER;
+extern tsapi int TS_URL_LEN_HTTP;
+extern tsapi int TS_URL_LEN_HTTPS;
+extern tsapi int TS_URL_LEN_MAILTO;
+extern tsapi int TS_URL_LEN_NEWS;
+extern tsapi int TS_URL_LEN_NNTP;
+extern tsapi int TS_URL_LEN_PROSPERO;
+extern tsapi int TS_URL_LEN_TELNET;
+extern tsapi int TS_URL_LEN_WAIS;
+
+/* --------------------------------------------------------------------------
+   MIME fields */
+extern tsapi const char *TS_MIME_FIELD_ACCEPT;
+extern tsapi const char *TS_MIME_FIELD_ACCEPT_CHARSET;
+extern tsapi const char *TS_MIME_FIELD_ACCEPT_ENCODING;
+extern tsapi const char *TS_MIME_FIELD_ACCEPT_LANGUAGE;
+extern tsapi const char *TS_MIME_FIELD_ACCEPT_RANGES;
+extern tsapi const char *TS_MIME_FIELD_AGE;
+extern tsapi const char *TS_MIME_FIELD_ALLOW;
+extern tsapi const char *TS_MIME_FIELD_APPROVED;
+extern tsapi const char *TS_MIME_FIELD_AUTHORIZATION;
+extern tsapi const char *TS_MIME_FIELD_BYTES;
+extern tsapi const char *TS_MIME_FIELD_CACHE_CONTROL;
+extern tsapi const char *TS_MIME_FIELD_CLIENT_IP;
+extern tsapi const char *TS_MIME_FIELD_CONNECTION;
+extern tsapi const char *TS_MIME_FIELD_CONTENT_BASE;
+extern tsapi const char *TS_MIME_FIELD_CONTENT_ENCODING;
+extern tsapi const char *TS_MIME_FIELD_CONTENT_LANGUAGE;
+extern tsapi const char *TS_MIME_FIELD_CONTENT_LENGTH;
+extern tsapi const char *TS_MIME_FIELD_CONTENT_LOCATION;
+extern tsapi const char *TS_MIME_FIELD_CONTENT_MD5;
+extern tsapi const char *TS_MIME_FIELD_CONTENT_RANGE;
+extern tsapi const char *TS_MIME_FIELD_CONTENT_TYPE;
+extern tsapi const char *TS_MIME_FIELD_CONTROL;
+extern tsapi const char *TS_MIME_FIELD_COOKIE;
+extern tsapi const char *TS_MIME_FIELD_DATE;
+extern tsapi const char *TS_MIME_FIELD_DISTRIBUTION;
+extern tsapi const char *TS_MIME_FIELD_ETAG;
+extern tsapi const char *TS_MIME_FIELD_EXPECT;
+extern tsapi const char *TS_MIME_FIELD_EXPIRES;
+extern tsapi const char *TS_MIME_FIELD_FOLLOWUP_TO;
+extern tsapi const char *TS_MIME_FIELD_FROM;
+extern tsapi const char *TS_MIME_FIELD_HOST;
+extern tsapi const char *TS_MIME_FIELD_IF_MATCH;
+extern tsapi const char *TS_MIME_FIELD_IF_MODIFIED_SINCE;
+extern tsapi const char *TS_MIME_FIELD_IF_NONE_MATCH;
+extern tsapi const char *TS_MIME_FIELD_IF_RANGE;
+extern tsapi const char *TS_MIME_FIELD_IF_UNMODIFIED_SINCE;
+extern tsapi const char *TS_MIME_FIELD_KEEP_ALIVE;
+extern tsapi const char *TS_MIME_FIELD_KEYWORDS;
+extern tsapi const char *TS_MIME_FIELD_LAST_MODIFIED;
+extern tsapi const char *TS_MIME_FIELD_LINES;
+extern tsapi const char *TS_MIME_FIELD_LOCATION;
+extern tsapi const char *TS_MIME_FIELD_MAX_FORWARDS;
+extern tsapi const char *TS_MIME_FIELD_MESSAGE_ID;
+extern tsapi const char *TS_MIME_FIELD_NEWSGROUPS;
+extern tsapi const char *TS_MIME_FIELD_ORGANIZATION;
+extern tsapi const char *TS_MIME_FIELD_PATH;
+extern tsapi const char *TS_MIME_FIELD_PRAGMA;
+extern tsapi const char *TS_MIME_FIELD_PROXY_AUTHENTICATE;
+extern tsapi const char *TS_MIME_FIELD_PROXY_AUTHORIZATION;
+extern tsapi const char *TS_MIME_FIELD_PROXY_CONNECTION;
+extern tsapi const char *TS_MIME_FIELD_PUBLIC;
+extern tsapi const char *TS_MIME_FIELD_RANGE;
+extern tsapi const char *TS_MIME_FIELD_REFERENCES;
+extern tsapi const char *TS_MIME_FIELD_REFERER;
+extern tsapi const char *TS_MIME_FIELD_REPLY_TO;
+extern tsapi const char *TS_MIME_FIELD_RETRY_AFTER;
+extern tsapi const char *TS_MIME_FIELD_SENDER;
+extern tsapi const char *TS_MIME_FIELD_SERVER;
+extern tsapi const char *TS_MIME_FIELD_SET_COOKIE;
+extern tsapi const char *TS_MIME_FIELD_STRICT_TRANSPORT_SECURITY;
+extern tsapi const char *TS_MIME_FIELD_SUBJECT;
+extern tsapi const char *TS_MIME_FIELD_SUMMARY;
+extern tsapi const char *TS_MIME_FIELD_TE;
+extern tsapi const char *TS_MIME_FIELD_TRANSFER_ENCODING;
+extern tsapi const char *TS_MIME_FIELD_UPGRADE;
+extern tsapi const char *TS_MIME_FIELD_USER_AGENT;
+extern tsapi const char *TS_MIME_FIELD_VARY;
+extern tsapi const char *TS_MIME_FIELD_VIA;
+extern tsapi const char *TS_MIME_FIELD_WARNING;
+extern tsapi const char *TS_MIME_FIELD_WWW_AUTHENTICATE;
+extern tsapi const char *TS_MIME_FIELD_XREF;
+extern tsapi const char *TS_MIME_FIELD_X_FORWARDED_FOR;
+
+/* --------------------------------------------------------------------------
+   MIME fields string lengths */
+extern tsapi int TS_MIME_LEN_ACCEPT;
+extern tsapi int TS_MIME_LEN_ACCEPT_CHARSET;
+extern tsapi int TS_MIME_LEN_ACCEPT_ENCODING;
+extern tsapi int TS_MIME_LEN_ACCEPT_LANGUAGE;
+extern tsapi int TS_MIME_LEN_ACCEPT_RANGES;
+extern tsapi int TS_MIME_LEN_AGE;
+extern tsapi int TS_MIME_LEN_ALLOW;
+extern tsapi int TS_MIME_LEN_APPROVED;
+extern tsapi int TS_MIME_LEN_AUTHORIZATION;
+extern tsapi int TS_MIME_LEN_BYTES;
+extern tsapi int TS_MIME_LEN_CACHE_CONTROL;
+extern tsapi int TS_MIME_LEN_CLIENT_IP;
+extern tsapi int TS_MIME_LEN_CONNECTION;
+extern tsapi int TS_MIME_LEN_CONTENT_BASE;
+extern tsapi int TS_MIME_LEN_CONTENT_ENCODING;
+extern tsapi int TS_MIME_LEN_CONTENT_LANGUAGE;
+extern tsapi int TS_MIME_LEN_CONTENT_LENGTH;
+extern tsapi int TS_MIME_LEN_CONTENT_LOCATION;
+extern tsapi int TS_MIME_LEN_CONTENT_MD5;
+extern tsapi int TS_MIME_LEN_CONTENT_RANGE;
+extern tsapi int TS_MIME_LEN_CONTENT_TYPE;
+extern tsapi int TS_MIME_LEN_CONTROL;
+extern tsapi int TS_MIME_LEN_COOKIE;
+extern tsapi int TS_MIME_LEN_DATE;
+extern tsapi int TS_MIME_LEN_DISTRIBUTION;
+extern tsapi int TS_MIME_LEN_ETAG;
+extern tsapi int TS_MIME_LEN_EXPECT;
+extern tsapi int TS_MIME_LEN_EXPIRES;
+extern tsapi int TS_MIME_LEN_FOLLOWUP_TO;
+extern tsapi int TS_MIME_LEN_FROM;
+extern tsapi int TS_MIME_LEN_HOST;
+extern tsapi int TS_MIME_LEN_IF_MATCH;
+extern tsapi int TS_MIME_LEN_IF_MODIFIED_SINCE;
+extern tsapi int TS_MIME_LEN_IF_NONE_MATCH;
+extern tsapi int TS_MIME_LEN_IF_RANGE;
+extern tsapi int TS_MIME_LEN_IF_UNMODIFIED_SINCE;
+extern tsapi int TS_MIME_LEN_KEEP_ALIVE;
+extern tsapi int TS_MIME_LEN_KEYWORDS;
+extern tsapi int TS_MIME_LEN_LAST_MODIFIED;
+extern tsapi int TS_MIME_LEN_LINES;
+extern tsapi int TS_MIME_LEN_LOCATION;
+extern tsapi int TS_MIME_LEN_MAX_FORWARDS;
+extern tsapi int TS_MIME_LEN_MESSAGE_ID;
+extern tsapi int TS_MIME_LEN_NEWSGROUPS;
+extern tsapi int TS_MIME_LEN_ORGANIZATION;
+extern tsapi int TS_MIME_LEN_PATH;
+extern tsapi int TS_MIME_LEN_PRAGMA;
+extern tsapi int TS_MIME_LEN_PROXY_AUTHENTICATE;
+extern tsapi int TS_MIME_LEN_PROXY_AUTHORIZATION;
+extern tsapi int TS_MIME_LEN_PROXY_CONNECTION;
+extern tsapi int TS_MIME_LEN_PUBLIC;
+extern tsapi int TS_MIME_LEN_RANGE;
+extern tsapi int TS_MIME_LEN_REFERENCES;
+extern tsapi int TS_MIME_LEN_REFERER;
+extern tsapi int TS_MIME_LEN_REPLY_TO;
+extern tsapi int TS_MIME_LEN_RETRY_AFTER;
+extern tsapi int TS_MIME_LEN_SENDER;
+extern tsapi int TS_MIME_LEN_SERVER;
+extern tsapi int TS_MIME_LEN_SET_COOKIE;
+extern tsapi int TS_MIME_LEN_STRICT_TRANSPORT_SECURITY;
+extern tsapi int TS_MIME_LEN_SUBJECT;
+extern tsapi int TS_MIME_LEN_SUMMARY;
+extern tsapi int TS_MIME_LEN_TE;
+extern tsapi int TS_MIME_LEN_TRANSFER_ENCODING;
+extern tsapi int TS_MIME_LEN_UPGRADE;
+extern tsapi int TS_MIME_LEN_USER_AGENT;
+extern tsapi int TS_MIME_LEN_VARY;
+extern tsapi int TS_MIME_LEN_VIA;
+extern tsapi int TS_MIME_LEN_WARNING;
+extern tsapi int TS_MIME_LEN_WWW_AUTHENTICATE;
+extern tsapi int TS_MIME_LEN_XREF;
+extern tsapi int TS_MIME_LEN_X_FORWARDED_FOR;
+
+/* --------------------------------------------------------------------------
+   HTTP values */
+extern tsapi const char *TS_HTTP_VALUE_BYTES;
+extern tsapi const char *TS_HTTP_VALUE_CHUNKED;
+extern tsapi const char *TS_HTTP_VALUE_CLOSE;
+extern tsapi const char *TS_HTTP_VALUE_COMPRESS;
+extern tsapi const char *TS_HTTP_VALUE_DEFLATE;
+extern tsapi const char *TS_HTTP_VALUE_GZIP;
+extern tsapi const char *TS_HTTP_VALUE_IDENTITY;
+extern tsapi const char *TS_HTTP_VALUE_KEEP_ALIVE;
+extern tsapi const char *TS_HTTP_VALUE_MAX_AGE;
+extern tsapi const char *TS_HTTP_VALUE_MAX_STALE;
+extern tsapi const char *TS_HTTP_VALUE_MIN_FRESH;
+extern tsapi const char *TS_HTTP_VALUE_MUST_REVALIDATE;
+extern tsapi const char *TS_HTTP_VALUE_NONE;
+extern tsapi const char *TS_HTTP_VALUE_NO_CACHE;
+extern tsapi const char *TS_HTTP_VALUE_NO_STORE;
+extern tsapi const char *TS_HTTP_VALUE_NO_TRANSFORM;
+extern tsapi const char *TS_HTTP_VALUE_ONLY_IF_CACHED;
+extern tsapi const char *TS_HTTP_VALUE_PRIVATE;
+extern tsapi const char *TS_HTTP_VALUE_PROXY_REVALIDATE;
+extern tsapi const char *TS_HTTP_VALUE_PUBLIC;
+
+/* --------------------------------------------------------------------------
+   HTTP values string lengths */
+extern tsapi int TS_HTTP_LEN_BYTES;
+extern tsapi int TS_HTTP_LEN_CHUNKED;
+extern tsapi int TS_HTTP_LEN_CLOSE;
+extern tsapi int TS_HTTP_LEN_COMPRESS;
+extern tsapi int TS_HTTP_LEN_DEFLATE;
+extern tsapi int TS_HTTP_LEN_GZIP;
+extern tsapi int TS_HTTP_LEN_IDENTITY;
+extern tsapi int TS_HTTP_LEN_KEEP_ALIVE;
+extern tsapi int TS_HTTP_LEN_MAX_AGE;
+extern tsapi int TS_HTTP_LEN_MAX_STALE;
+extern tsapi int TS_HTTP_LEN_MIN_FRESH;
+extern tsapi int TS_HTTP_LEN_MUST_REVALIDATE;
+extern tsapi int TS_HTTP_LEN_NONE;
+extern tsapi int TS_HTTP_LEN_NO_CACHE;
+extern tsapi int TS_HTTP_LEN_NO_STORE;
+extern tsapi int TS_HTTP_LEN_NO_TRANSFORM;
+extern tsapi int TS_HTTP_LEN_ONLY_IF_CACHED;
+extern tsapi int TS_HTTP_LEN_PRIVATE;
+extern tsapi int TS_HTTP_LEN_PROXY_REVALIDATE;
+extern tsapi int TS_HTTP_LEN_PUBLIC;
+
+/* --------------------------------------------------------------------------
+   HTTP methods */
+extern tsapi const char *TS_HTTP_METHOD_CONNECT;
+extern tsapi const char *TS_HTTP_METHOD_DELETE;
+extern tsapi const char *TS_HTTP_METHOD_GET;
+extern tsapi const char *TS_HTTP_METHOD_HEAD;
+extern tsapi const char *TS_HTTP_METHOD_ICP_QUERY;
+extern tsapi const char *TS_HTTP_METHOD_OPTIONS;
+extern tsapi const char *TS_HTTP_METHOD_POST;
+extern tsapi const char *TS_HTTP_METHOD_PURGE;
+extern tsapi const char *TS_HTTP_METHOD_PUT;
+extern tsapi const char *TS_HTTP_METHOD_TRACE;
+extern tsapi const char *TS_HTTP_METHOD_PUSH;
+
+/* --------------------------------------------------------------------------
+   HTTP methods string lengths */
+extern tsapi int TS_HTTP_LEN_CONNECT;
+extern tsapi int TS_HTTP_LEN_DELETE;
+extern tsapi int TS_HTTP_LEN_GET;
+extern tsapi int TS_HTTP_LEN_HEAD;
+extern tsapi int TS_HTTP_LEN_ICP_QUERY;
+extern tsapi int TS_HTTP_LEN_OPTIONS;
+extern tsapi int TS_HTTP_LEN_POST;
+extern tsapi int TS_HTTP_LEN_PURGE;
+extern tsapi int TS_HTTP_LEN_PUT;
+extern tsapi int TS_HTTP_LEN_TRACE;
+extern tsapi int TS_HTTP_LEN_PUSH;
+
+/* --------------------------------------------------------------------------
+   TLS Next Protocol well-known protocol names. */
+
+extern tsapi const char *const TS_NPN_PROTOCOL_HTTP_0_9;
+extern tsapi const char *const TS_NPN_PROTOCOL_HTTP_1_0;
+extern tsapi const char *const TS_NPN_PROTOCOL_HTTP_1_1;
+extern tsapi const char *const TS_NPN_PROTOCOL_HTTP_2_0_14;
+extern tsapi const char *const TS_NPN_PROTOCOL_HTTP_2_0;
+extern tsapi const char *const TS_NPN_PROTOCOL_SPDY_1;
+extern tsapi const char *const TS_NPN_PROTOCOL_SPDY_2;
+extern tsapi const char *const TS_NPN_PROTOCOL_SPDY_3;
+extern tsapi const char *const TS_NPN_PROTOCOL_SPDY_3_1;
+
+extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_0_9;
+extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_1_0;
+extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_1_1;
+extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_1;
+extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_2;
+extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_3;
+extern tsapi int TS_NPN_PROTOCOL_INDEX_SPDY_3_1;
+extern tsapi int TS_NPN_PROTOCOL_INDEX_HTTP_2_0;
+
+extern tsapi const char *const TS_NPN_PROTOCOL_GROUP_HTTP;
+extern tsapi const char *const TS_NPN_PROTOCOL_GROUP_HTTP2;
+extern tsapi const char *const TS_NPN_PROTOCOL_GROUP_SPDY;
+
+/* --------------------------------------------------------------------------
+   MLoc Constants */
+/**
+    Use TS_NULL_MLOC as the parent in calls that require a parent
+    when an TSMLoc does not have a parent TSMLoc. For example if
+    the TSMLoc is obtained by a call to TSHttpTxnClientReqGet(),
+
+ */
+extern tsapi const TSMLoc TS_NULL_MLOC;
 
 #ifdef __cplusplus
 }


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