1107 lines
35 KiB
C
1107 lines
35 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef USE_UV
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#include "transComm.h"
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static TdThreadOnce transModuleInit = PTHREAD_ONCE_INIT;
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static char* notify = "a";
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static int transSrvInst = 0;
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typedef struct {
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int notifyCount; //
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int init; // init or not
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STransMsg msg;
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} SSrvRegArg;
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typedef struct SSrvConn {
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T_REF_DECLARE()
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uv_tcp_t* pTcp;
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uv_write_t pWriter;
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uv_timer_t pTimer;
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queue queue;
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int persist; // persist connection or not
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SConnBuffer readBuf; // read buf,
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int inType;
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void* pTransInst; // rpc init
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void* ahandle; //
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void* hostThrd;
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STransQueue srvMsgs;
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SSrvRegArg regArg;
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bool broken; // conn broken;
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ConnStatus status;
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struct sockaddr_in addr;
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struct sockaddr_in locaddr;
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int64_t refId;
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int spi;
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char info[64];
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char user[TSDB_UNI_LEN]; // user ID for the link
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char secret[TSDB_PASSWORD_LEN];
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char ckey[TSDB_PASSWORD_LEN]; // ciphering key
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} SSrvConn;
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typedef struct SSrvMsg {
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SSrvConn* pConn;
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STransMsg msg;
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queue q;
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STransMsgType type;
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} SSrvMsg;
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typedef struct SWorkThrdObj {
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TdThread thread;
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uv_pipe_t* pipe;
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uv_os_fd_t fd;
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uv_loop_t* loop;
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SAsyncPool* asyncPool;
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queue msg;
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TdThreadMutex msgMtx;
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queue conn;
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void* pTransInst;
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bool quit;
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} SWorkThrdObj;
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typedef struct SServerObj {
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TdThread thread;
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uv_tcp_t server;
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uv_loop_t* loop;
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// work thread info
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int workerIdx;
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int numOfThreads;
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SWorkThrdObj** pThreadObj;
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uv_pipe_t** pipe;
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uint32_t ip;
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uint32_t port;
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uv_async_t* pAcceptAsync; // just to quit from from accept thread
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} SServerObj;
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// handle
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typedef struct SExHandle {
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void* handle;
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int64_t refId;
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SWorkThrdObj* pThrd;
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} SExHandle;
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static void uvAllocConnBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
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static void uvAllocRecvBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
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static void uvOnRecvCb(uv_stream_t* cli, ssize_t nread, const uv_buf_t* buf);
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static void uvOnTimeoutCb(uv_timer_t* handle);
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static void uvOnSendCb(uv_write_t* req, int status);
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static void uvOnPipeWriteCb(uv_write_t* req, int status);
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static void uvOnAcceptCb(uv_stream_t* stream, int status);
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static void uvOnConnectionCb(uv_stream_t* q, ssize_t nread, const uv_buf_t* buf);
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static void uvWorkerAsyncCb(uv_async_t* handle);
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static void uvAcceptAsyncCb(uv_async_t* handle);
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static void uvShutDownCb(uv_shutdown_t* req, int status);
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/*
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* time-consuming task throwed into BG work thread
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*/
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static void uvWorkDoTask(uv_work_t* req);
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static void uvWorkAfterTask(uv_work_t* req, int status);
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static void uvWalkCb(uv_handle_t* handle, void* arg);
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static void uvFreeCb(uv_handle_t* handle);
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static void uvStartSendRespInternal(SSrvMsg* smsg);
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static void uvPrepareSendData(SSrvMsg* msg, uv_buf_t* wb);
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static void uvStartSendResp(SSrvMsg* msg);
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static void uvNotifyLinkBrokenToApp(SSrvConn* conn);
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static void destroySmsg(SSrvMsg* smsg);
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// check whether already read complete packet
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static SSrvConn* createConn(void* hThrd);
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static void destroyConn(SSrvConn* conn, bool clear /*clear handle or not*/);
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static void uvHandleQuit(SSrvMsg* msg, SWorkThrdObj* thrd);
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static void uvHandleRelease(SSrvMsg* msg, SWorkThrdObj* thrd);
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static void uvHandleResp(SSrvMsg* msg, SWorkThrdObj* thrd);
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static void uvHandleRegister(SSrvMsg* msg, SWorkThrdObj* thrd);
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static void (*transAsyncHandle[])(SSrvMsg* msg, SWorkThrdObj* thrd) = {uvHandleResp, uvHandleQuit, uvHandleRelease,
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uvHandleRegister};
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static int32_t exHandlesMgt;
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void uvInitExHandleMgt();
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void uvOpenExHandleMgt(int size);
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void uvCloseExHandleMgt();
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int64_t uvAddExHandle(void* p);
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int32_t uvRemoveExHandle(int64_t refId);
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int32_t uvReleaseExHandle(int64_t refId);
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void uvDestoryExHandle(void* handle);
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SExHandle* uvAcquireExHandle(int64_t refId);
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static void uvDestroyConn(uv_handle_t* handle);
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// server and worker thread
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static void* transWorkerThread(void* arg);
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static void* transAcceptThread(void* arg);
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// add handle loop
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static bool addHandleToWorkloop(void* arg);
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static bool addHandleToAcceptloop(void* arg);
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#define CONN_SHOULD_RELEASE(conn, head) \
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do { \
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if ((head)->release == 1 && (head->msgLen) == sizeof(*head)) { \
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conn->status = ConnRelease; \
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transClearBuffer(&conn->readBuf); \
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transFreeMsg(transContFromHead((char*)head)); \
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tTrace("server conn %p received release request", conn); \
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\
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STransMsg tmsg = {.code = 0, .handle = (void*)conn, .ahandle = NULL}; \
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SSrvMsg* srvMsg = taosMemoryCalloc(1, sizeof(SSrvMsg)); \
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srvMsg->msg = tmsg; \
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srvMsg->type = Release; \
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srvMsg->pConn = conn; \
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if (!transQueuePush(&conn->srvMsgs, srvMsg)) { \
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return; \
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} \
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uvStartSendRespInternal(srvMsg); \
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return; \
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} \
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} while (0)
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#define SRV_RELEASE_UV(loop) \
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do { \
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uv_walk(loop, uvWalkCb, NULL); \
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uv_run(loop, UV_RUN_DEFAULT); \
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uv_loop_close(loop); \
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} while (0);
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#define ASYNC_ERR_JRET(thrd) \
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do { \
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if (thrd->quit) { \
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tTrace("worker thread already quit, ignore msg"); \
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goto _return1; \
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} \
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} while (0)
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#define ASYNC_CHECK_HANDLE(exh1, refId) \
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do { \
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if (refId > 0) { \
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tTrace("server handle step1"); \
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SExHandle* exh2 = uvAcquireExHandle(refId); \
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if (exh2 == NULL || refId != exh2->refId) { \
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tTrace("server handle %p except, may already freed, ignore msg, ref1: %" PRIu64 ", ref2 : %" PRIu64 "", exh1, \
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exh1->refId, refId); \
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goto _return1; \
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} \
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} else if (refId == 0) { \
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tTrace("server handle step2"); \
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SExHandle* exh2 = uvAcquireExHandle(refId); \
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if (exh2 == NULL || refId != exh2->refId) { \
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tTrace("server handle %p except, may already freed, ignore msg, ref1: %" PRIu64 ", ref2 : %" PRIu64 "", exh1, \
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refId, exh2 ? exh2->refId : 0); \
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goto _return1; \
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} else { \
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refId = exh1->refId; \
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} \
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} else if (refId == -1) { \
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tTrace("server handle step3"); \
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goto _return2; \
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} \
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} while (0)
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void uvAllocRecvBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
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SSrvConn* conn = handle->data;
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SConnBuffer* pBuf = &conn->readBuf;
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transAllocBuffer(pBuf, buf);
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}
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// refers specifically to query or insert timeout
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static void uvHandleActivityTimeout(uv_timer_t* handle) {
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SSrvConn* conn = handle->data;
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tDebug("%p timeout since no activity", conn);
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}
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static void uvHandleReq(SSrvConn* pConn) {
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SConnBuffer* pBuf = &pConn->readBuf;
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char* msg = pBuf->buf;
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uint32_t msgLen = pBuf->len;
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STransMsgHead* pHead = (STransMsgHead*)msg;
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pHead->code = htonl(pHead->code);
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pHead->msgLen = htonl(pHead->msgLen);
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memcpy(pConn->user, pHead->user, strlen(pHead->user));
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// TODO(dengyihao): time-consuming task throwed into BG Thread
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// uv_work_t* wreq = taosMemoryMalloc(sizeof(uv_work_t));
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// wreq->data = pConn;
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// uv_read_stop((uv_stream_t*)pConn->pTcp);
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// transRefSrvHandle(pConn);
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// uv_queue_work(((SWorkThrdObj*)pConn->hostThrd)->loop, wreq, uvWorkDoTask, uvWorkAfterTask);
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CONN_SHOULD_RELEASE(pConn, pHead);
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STransMsg transMsg;
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transMsg.contLen = transContLenFromMsg(pHead->msgLen);
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transMsg.pCont = pHead->content;
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transMsg.msgType = pHead->msgType;
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transMsg.code = pHead->code;
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transMsg.ahandle = (void*)pHead->ahandle;
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transMsg.handle = NULL;
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// transDestroyBuffer(&pConn->readBuf);
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transClearBuffer(&pConn->readBuf);
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pConn->inType = pHead->msgType;
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if (pConn->status == ConnNormal) {
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if (pHead->persist == 1) {
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pConn->status = ConnAcquire;
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transRefSrvHandle(pConn);
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tDebug("server conn %p acquired by server app", pConn);
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}
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}
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if (pConn->status == ConnNormal && pHead->noResp == 0) {
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transRefSrvHandle(pConn);
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tDebug("server conn %p %s received from %s:%d, local info: %s:%d, msg size: %d", pConn, TMSG_INFO(transMsg.msgType),
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taosInetNtoa(pConn->addr.sin_addr), ntohs(pConn->addr.sin_port), taosInetNtoa(pConn->locaddr.sin_addr),
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ntohs(pConn->locaddr.sin_port), transMsg.contLen);
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} else {
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tDebug("server conn %p %s received from %s:%d, local info: %s:%d, msg size: %d, resp:%d ", pConn,
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TMSG_INFO(transMsg.msgType), taosInetNtoa(pConn->addr.sin_addr), ntohs(pConn->addr.sin_port),
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taosInetNtoa(pConn->locaddr.sin_addr), ntohs(pConn->locaddr.sin_port), transMsg.contLen, pHead->noResp);
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// no ref here
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}
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// if pHead->noResp = 1,
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// 1. server application should not send resp on handle
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// 2. once send out data, cli conn released to conn pool immediately
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// 3. not mixed with persist
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transMsg.handle = (void*)uvAcquireExHandle(pConn->refId);
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tTrace("server handle %p conn: %p translated to app, refId: %" PRIu64 "", transMsg.handle, pConn, pConn->refId);
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transMsg.refId = pConn->refId;
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assert(transMsg.handle != NULL);
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if (pHead->noResp == 1) {
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transMsg.refId = -1;
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}
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uvReleaseExHandle(pConn->refId);
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STrans* pTransInst = pConn->pTransInst;
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(*pTransInst->cfp)(pTransInst->parent, &transMsg, NULL);
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// uv_timer_start(&pConn->pTimer, uvHandleActivityTimeout, pRpc->idleTime * 10000, 0);
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}
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void uvOnRecvCb(uv_stream_t* cli, ssize_t nread, const uv_buf_t* buf) {
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// opt
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SSrvConn* conn = cli->data;
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SConnBuffer* pBuf = &conn->readBuf;
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if (nread > 0) {
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pBuf->len += nread;
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tTrace("server conn %p read summary, total read: %d, current read: %d", conn, pBuf->len, (int)nread);
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if (transReadComplete(pBuf)) {
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tTrace("server conn %p alread read complete packet", conn);
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uvHandleReq(conn);
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} else {
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tTrace("server %p read partial packet, continue to read", conn);
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}
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return;
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}
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if (nread == 0) {
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return;
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}
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tError("server conn %p read error: %s", conn, uv_err_name(nread));
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if (nread < 0) {
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conn->broken = true;
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if (conn->status == ConnAcquire) {
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if (conn->regArg.init) {
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tTrace("server conn %p broken, notify server app", conn);
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STrans* pTransInst = conn->pTransInst;
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(*pTransInst->cfp)(pTransInst->parent, &(conn->regArg.msg), NULL);
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memset(&conn->regArg, 0, sizeof(conn->regArg));
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}
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}
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transUnrefSrvHandle(conn);
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}
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}
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void uvAllocConnBufferCb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
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buf->len = 2;
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buf->base = taosMemoryCalloc(1, sizeof(char) * buf->len);
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}
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void uvOnTimeoutCb(uv_timer_t* handle) {
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// opt
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SSrvConn* pConn = handle->data;
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tError("server conn %p time out", pConn);
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}
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void uvOnSendCb(uv_write_t* req, int status) {
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SSrvConn* conn = req->data;
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// transClearBuffer(&conn->readBuf);
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if (status == 0) {
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tTrace("server conn %p data already was written on stream", conn);
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if (!transQueueEmpty(&conn->srvMsgs)) {
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SSrvMsg* msg = transQueuePop(&conn->srvMsgs);
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if (msg->type == Release && conn->status != ConnNormal) {
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conn->status = ConnNormal;
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transUnrefSrvHandle(conn);
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}
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destroySmsg(msg);
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// send second data, just use for push
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if (!transQueueEmpty(&conn->srvMsgs)) {
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msg = (SSrvMsg*)transQueueGet(&conn->srvMsgs, 0);
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if (msg->type == Register && conn->status == ConnAcquire) {
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conn->regArg.notifyCount = 0;
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conn->regArg.init = 1;
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conn->regArg.msg = msg->msg;
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if (conn->broken) {
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STrans* pTransInst = conn->pTransInst;
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(pTransInst->cfp)(pTransInst->parent, &(conn->regArg.msg), NULL);
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memset(&conn->regArg, 0, sizeof(conn->regArg));
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}
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transQueuePop(&conn->srvMsgs);
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taosMemoryFree(msg);
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msg = (SSrvMsg*)transQueueGet(&conn->srvMsgs, 0);
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if (msg != NULL) {
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uvStartSendRespInternal(msg);
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}
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} else {
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uvStartSendRespInternal(msg);
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}
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}
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}
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} else {
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tError("server conn %p failed to write data, %s", conn, uv_err_name(status));
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conn->broken = true;
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transUnrefSrvHandle(conn);
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}
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}
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static void uvOnPipeWriteCb(uv_write_t* req, int status) {
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if (status == 0) {
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tTrace("success to dispatch conn to work thread");
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} else {
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tError("fail to dispatch conn to work thread");
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}
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uv_close((uv_handle_t*)req->data, uvFreeCb);
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// taosMemoryFree(req->data);
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taosMemoryFree(req);
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}
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static void uvPrepareSendData(SSrvMsg* smsg, uv_buf_t* wb) {
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tTrace("server conn %p prepare to send resp", smsg->pConn);
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SSrvConn* pConn = smsg->pConn;
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STransMsg* pMsg = &smsg->msg;
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if (pMsg->pCont == 0) {
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pMsg->pCont = (void*)rpcMallocCont(0);
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pMsg->contLen = 0;
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}
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STransMsgHead* pHead = transHeadFromCont(pMsg->pCont);
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pHead->ahandle = (uint64_t)pMsg->ahandle;
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if (pConn->status == ConnNormal) {
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pHead->msgType = pConn->inType + 1;
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} else {
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pHead->msgType = smsg->type == Release ? 0 : pMsg->msgType;
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}
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pHead->release = smsg->type == Release ? 1 : 0;
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pHead->code = htonl(pMsg->code);
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char* msg = (char*)pHead;
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int32_t len = transMsgLenFromCont(pMsg->contLen);
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tDebug("server conn %p %s is sent to %s:%d, local info: %s:%d", pConn, TMSG_INFO(pHead->msgType),
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taosInetNtoa(pConn->addr.sin_addr), ntohs(pConn->addr.sin_port), taosInetNtoa(pConn->locaddr.sin_addr),
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ntohs(pConn->locaddr.sin_port));
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pHead->msgLen = htonl(len);
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wb->base = msg;
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wb->len = len;
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}
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static void uvStartSendRespInternal(SSrvMsg* smsg) {
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uv_buf_t wb;
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uvPrepareSendData(smsg, &wb);
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SSrvConn* pConn = smsg->pConn;
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// uv_timer_stop(&pConn->pTimer);
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uv_write(&pConn->pWriter, (uv_stream_t*)pConn->pTcp, &wb, 1, uvOnSendCb);
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}
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static void uvStartSendResp(SSrvMsg* smsg) {
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// impl
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SSrvConn* pConn = smsg->pConn;
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if (pConn->broken == true) {
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// persist by
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transUnrefSrvHandle(pConn);
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return;
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}
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if (pConn->status == ConnNormal) {
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transUnrefSrvHandle(pConn);
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}
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if (!transQueuePush(&pConn->srvMsgs, smsg)) {
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return;
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}
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uvStartSendRespInternal(smsg);
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return;
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}
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|
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static void destroySmsg(SSrvMsg* smsg) {
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if (smsg == NULL) {
|
|
return;
|
|
}
|
|
transFreeMsg(smsg->msg.pCont);
|
|
taosMemoryFree(smsg);
|
|
}
|
|
static void destroyAllConn(SWorkThrdObj* pThrd) {
|
|
tTrace("thread %p destroy all conn ", pThrd);
|
|
while (!QUEUE_IS_EMPTY(&pThrd->conn)) {
|
|
queue* h = QUEUE_HEAD(&pThrd->conn);
|
|
QUEUE_REMOVE(h);
|
|
QUEUE_INIT(h);
|
|
|
|
SSrvConn* c = QUEUE_DATA(h, SSrvConn, queue);
|
|
while (T_REF_VAL_GET(c) >= 2) {
|
|
transUnrefSrvHandle(c);
|
|
}
|
|
transUnrefSrvHandle(c);
|
|
}
|
|
}
|
|
void uvWorkerAsyncCb(uv_async_t* handle) {
|
|
SAsyncItem* item = handle->data;
|
|
SWorkThrdObj* pThrd = item->pThrd;
|
|
SSrvConn* conn = NULL;
|
|
queue wq;
|
|
|
|
// batch process to avoid to lock/unlock frequently
|
|
taosThreadMutexLock(&item->mtx);
|
|
QUEUE_MOVE(&item->qmsg, &wq);
|
|
taosThreadMutexUnlock(&item->mtx);
|
|
|
|
while (!QUEUE_IS_EMPTY(&wq)) {
|
|
queue* head = QUEUE_HEAD(&wq);
|
|
QUEUE_REMOVE(head);
|
|
|
|
SSrvMsg* msg = QUEUE_DATA(head, SSrvMsg, q);
|
|
if (msg == NULL) {
|
|
tError("unexcept occurred, continue");
|
|
continue;
|
|
}
|
|
// release handle to rpc init
|
|
if (msg->type == Quit) {
|
|
(*transAsyncHandle[msg->type])(msg, pThrd);
|
|
continue;
|
|
} else {
|
|
STransMsg transMsg = msg->msg;
|
|
|
|
SExHandle* exh1 = transMsg.handle;
|
|
int64_t refId = transMsg.refId;
|
|
SExHandle* exh2 = uvAcquireExHandle(refId);
|
|
if (exh2 == NULL || exh1 != exh2) {
|
|
tTrace("server handle %p except msg, ignore it", exh1);
|
|
uvReleaseExHandle(refId);
|
|
destroySmsg(msg);
|
|
continue;
|
|
}
|
|
msg->pConn = exh1->handle;
|
|
uvReleaseExHandle(refId);
|
|
(*transAsyncHandle[msg->type])(msg, pThrd);
|
|
}
|
|
}
|
|
}
|
|
static void uvWalkCb(uv_handle_t* handle, void* arg) {
|
|
if (!uv_is_closing(handle)) {
|
|
uv_close(handle, NULL);
|
|
}
|
|
}
|
|
static void uvFreeCb(uv_handle_t* handle) {
|
|
//
|
|
taosMemoryFree(handle);
|
|
}
|
|
|
|
static void uvAcceptAsyncCb(uv_async_t* async) {
|
|
SServerObj* srv = async->data;
|
|
tDebug("close server port %d", srv->port);
|
|
uv_walk(srv->loop, uvWalkCb, NULL);
|
|
}
|
|
|
|
static void uvShutDownCb(uv_shutdown_t* req, int status) {
|
|
if (status != 0) {
|
|
tDebug("conn failed to shut down: %s", uv_err_name(status));
|
|
}
|
|
uv_close((uv_handle_t*)req->handle, uvDestroyConn);
|
|
taosMemoryFree(req);
|
|
}
|
|
|
|
static void uvWorkDoTask(uv_work_t* req) {
|
|
// doing time-consumeing task
|
|
// only auth conn currently, add more func later
|
|
tTrace("server conn %p start to be processed in BG Thread", req->data);
|
|
return;
|
|
}
|
|
|
|
static void uvWorkAfterTask(uv_work_t* req, int status) {
|
|
if (status != 0) {
|
|
tTrace("server conn %p failed to processed ", req->data);
|
|
}
|
|
// Done time-consumeing task
|
|
// add more func later
|
|
// this func called in main loop
|
|
tTrace("server conn %p already processed ", req->data);
|
|
taosMemoryFree(req);
|
|
}
|
|
|
|
void uvOnAcceptCb(uv_stream_t* stream, int status) {
|
|
if (status == -1) {
|
|
return;
|
|
}
|
|
SServerObj* pObj = container_of(stream, SServerObj, server);
|
|
|
|
uv_tcp_t* cli = (uv_tcp_t*)taosMemoryMalloc(sizeof(uv_tcp_t));
|
|
uv_tcp_init(pObj->loop, cli);
|
|
|
|
if (uv_accept(stream, (uv_stream_t*)cli) == 0) {
|
|
uv_write_t* wr = (uv_write_t*)taosMemoryMalloc(sizeof(uv_write_t));
|
|
wr->data = cli;
|
|
uv_buf_t buf = uv_buf_init((char*)notify, strlen(notify));
|
|
|
|
pObj->workerIdx = (pObj->workerIdx + 1) % pObj->numOfThreads;
|
|
|
|
tTrace("new conntion accepted by main server, dispatch to %dth worker-thread", pObj->workerIdx);
|
|
|
|
uv_write2(wr, (uv_stream_t*)&(pObj->pipe[pObj->workerIdx][0]), &buf, 1, (uv_stream_t*)cli, uvOnPipeWriteCb);
|
|
} else {
|
|
uv_close((uv_handle_t*)cli, NULL);
|
|
}
|
|
}
|
|
void uvOnConnectionCb(uv_stream_t* q, ssize_t nread, const uv_buf_t* buf) {
|
|
tTrace("server connection coming");
|
|
if (nread < 0) {
|
|
if (nread != UV_EOF) {
|
|
tError("read error %s", uv_err_name(nread));
|
|
}
|
|
// TODO(log other failure reason)
|
|
tError("failed to create connect: %p", q);
|
|
taosMemoryFree(buf->base);
|
|
uv_close((uv_handle_t*)q, NULL);
|
|
// taosMemoryFree(q);
|
|
return;
|
|
}
|
|
// free memory allocated by
|
|
assert(nread == strlen(notify));
|
|
assert(buf->base[0] == notify[0]);
|
|
taosMemoryFree(buf->base);
|
|
|
|
SWorkThrdObj* pThrd = q->data;
|
|
|
|
uv_pipe_t* pipe = (uv_pipe_t*)q;
|
|
if (!uv_pipe_pending_count(pipe)) {
|
|
tError("No pending count");
|
|
return;
|
|
}
|
|
|
|
uv_handle_type pending = uv_pipe_pending_type(pipe);
|
|
assert(pending == UV_TCP);
|
|
|
|
SSrvConn* pConn = createConn(pThrd);
|
|
|
|
pConn->pTransInst = pThrd->pTransInst;
|
|
/* init conn timer*/
|
|
// uv_timer_init(pThrd->loop, &pConn->pTimer);
|
|
// pConn->pTimer.data = pConn;
|
|
|
|
pConn->hostThrd = pThrd;
|
|
|
|
// init client handle
|
|
pConn->pTcp = (uv_tcp_t*)taosMemoryMalloc(sizeof(uv_tcp_t));
|
|
uv_tcp_init(pThrd->loop, pConn->pTcp);
|
|
pConn->pTcp->data = pConn;
|
|
|
|
pConn->pWriter.data = pConn;
|
|
|
|
transSetConnOption((uv_tcp_t*)pConn->pTcp);
|
|
|
|
if (uv_accept(q, (uv_stream_t*)(pConn->pTcp)) == 0) {
|
|
uv_os_fd_t fd;
|
|
uv_fileno((const uv_handle_t*)pConn->pTcp, &fd);
|
|
tTrace("server conn %p created, fd: %d", pConn, fd);
|
|
|
|
int addrlen = sizeof(pConn->addr);
|
|
if (0 != uv_tcp_getpeername(pConn->pTcp, (struct sockaddr*)&pConn->addr, &addrlen)) {
|
|
tError("server conn %p failed to get peer info", pConn);
|
|
transUnrefSrvHandle(pConn);
|
|
return;
|
|
}
|
|
|
|
addrlen = sizeof(pConn->locaddr);
|
|
if (0 != uv_tcp_getsockname(pConn->pTcp, (struct sockaddr*)&pConn->locaddr, &addrlen)) {
|
|
tError("server conn %p failed to get local info", pConn);
|
|
transUnrefSrvHandle(pConn);
|
|
return;
|
|
}
|
|
|
|
uv_read_start((uv_stream_t*)(pConn->pTcp), uvAllocRecvBufferCb, uvOnRecvCb);
|
|
|
|
} else {
|
|
tDebug("failed to create new connection");
|
|
transUnrefSrvHandle(pConn);
|
|
}
|
|
}
|
|
|
|
void* transAcceptThread(void* arg) {
|
|
// opt
|
|
setThreadName("trans-accept");
|
|
SServerObj* srv = (SServerObj*)arg;
|
|
uv_run(srv->loop, UV_RUN_DEFAULT);
|
|
|
|
return NULL;
|
|
}
|
|
static bool addHandleToWorkloop(void* arg) {
|
|
SWorkThrdObj* pThrd = arg;
|
|
pThrd->loop = (uv_loop_t*)taosMemoryMalloc(sizeof(uv_loop_t));
|
|
if (0 != uv_loop_init(pThrd->loop)) {
|
|
return false;
|
|
}
|
|
|
|
uv_pipe_init(pThrd->loop, pThrd->pipe, 1);
|
|
uv_pipe_open(pThrd->pipe, pThrd->fd);
|
|
|
|
pThrd->pipe->data = pThrd;
|
|
|
|
QUEUE_INIT(&pThrd->msg);
|
|
taosThreadMutexInit(&pThrd->msgMtx, NULL);
|
|
|
|
// conn set
|
|
QUEUE_INIT(&pThrd->conn);
|
|
|
|
pThrd->asyncPool = transCreateAsyncPool(pThrd->loop, 5, pThrd, uvWorkerAsyncCb);
|
|
uv_read_start((uv_stream_t*)pThrd->pipe, uvAllocConnBufferCb, uvOnConnectionCb);
|
|
return true;
|
|
}
|
|
|
|
static bool addHandleToAcceptloop(void* arg) {
|
|
// impl later
|
|
SServerObj* srv = arg;
|
|
|
|
int err = 0;
|
|
if ((err = uv_tcp_init(srv->loop, &srv->server)) != 0) {
|
|
tError("failed to init accept server: %s", uv_err_name(err));
|
|
return false;
|
|
}
|
|
|
|
// register an async here to quit server gracefully
|
|
srv->pAcceptAsync = taosMemoryCalloc(1, sizeof(uv_async_t));
|
|
uv_async_init(srv->loop, srv->pAcceptAsync, uvAcceptAsyncCb);
|
|
srv->pAcceptAsync->data = srv;
|
|
|
|
struct sockaddr_in bind_addr;
|
|
uv_ip4_addr("0.0.0.0", srv->port, &bind_addr);
|
|
if ((err = uv_tcp_bind(&srv->server, (const struct sockaddr*)&bind_addr, 0)) != 0) {
|
|
tError("failed to bind: %s", uv_err_name(err));
|
|
return false;
|
|
}
|
|
if ((err = uv_listen((uv_stream_t*)&srv->server, 512, uvOnAcceptCb)) != 0) {
|
|
tError("failed to listen: %s", uv_err_name(err));
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
void* transWorkerThread(void* arg) {
|
|
setThreadName("trans-worker");
|
|
SWorkThrdObj* pThrd = (SWorkThrdObj*)arg;
|
|
uv_run(pThrd->loop, UV_RUN_DEFAULT);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static SSrvConn* createConn(void* hThrd) {
|
|
SWorkThrdObj* pThrd = hThrd;
|
|
|
|
SSrvConn* pConn = (SSrvConn*)taosMemoryCalloc(1, sizeof(SSrvConn));
|
|
QUEUE_INIT(&pConn->queue);
|
|
|
|
QUEUE_PUSH(&pThrd->conn, &pConn->queue);
|
|
|
|
transQueueInit(&pConn->srvMsgs, NULL);
|
|
|
|
memset(&pConn->regArg, 0, sizeof(pConn->regArg));
|
|
pConn->broken = false;
|
|
pConn->status = ConnNormal;
|
|
|
|
SExHandle* exh = taosMemoryMalloc(sizeof(SExHandle));
|
|
exh->handle = pConn;
|
|
exh->pThrd = pThrd;
|
|
exh->refId = uvAddExHandle(exh);
|
|
uvAcquireExHandle(exh->refId);
|
|
|
|
pConn->refId = exh->refId;
|
|
transRefSrvHandle(pConn);
|
|
tTrace("server handle %p, conn %p created, refId: %" PRId64 "", exh, pConn, pConn->refId);
|
|
return pConn;
|
|
}
|
|
|
|
static void destroyConn(SSrvConn* conn, bool clear) {
|
|
if (conn == NULL) {
|
|
return;
|
|
}
|
|
|
|
transDestroyBuffer(&conn->readBuf);
|
|
if (clear) {
|
|
tTrace("server conn %p to be destroyed", conn);
|
|
uv_shutdown_t* req = taosMemoryMalloc(sizeof(uv_shutdown_t));
|
|
uv_shutdown(req, (uv_stream_t*)conn->pTcp, uvShutDownCb);
|
|
}
|
|
}
|
|
static void uvDestroyConn(uv_handle_t* handle) {
|
|
SSrvConn* conn = handle->data;
|
|
if (conn == NULL) {
|
|
return;
|
|
}
|
|
SWorkThrdObj* thrd = conn->hostThrd;
|
|
|
|
uvReleaseExHandle(conn->refId);
|
|
uvRemoveExHandle(conn->refId);
|
|
|
|
tDebug("server conn %p destroy", conn);
|
|
// uv_timer_stop(&conn->pTimer);
|
|
transQueueDestroy(&conn->srvMsgs);
|
|
QUEUE_REMOVE(&conn->queue);
|
|
taosMemoryFree(conn->pTcp);
|
|
taosMemoryFree(conn);
|
|
|
|
if (thrd->quit && QUEUE_IS_EMPTY(&thrd->conn)) {
|
|
tTrace("work thread quit");
|
|
uv_walk(thrd->loop, uvWalkCb, NULL);
|
|
}
|
|
}
|
|
|
|
void* transInitServer(uint32_t ip, uint32_t port, char* label, int numOfThreads, void* fp, void* shandle) {
|
|
SServerObj* srv = taosMemoryCalloc(1, sizeof(SServerObj));
|
|
srv->loop = (uv_loop_t*)taosMemoryMalloc(sizeof(uv_loop_t));
|
|
srv->numOfThreads = numOfThreads;
|
|
srv->workerIdx = 0;
|
|
srv->pThreadObj = (SWorkThrdObj**)taosMemoryCalloc(srv->numOfThreads, sizeof(SWorkThrdObj*));
|
|
srv->pipe = (uv_pipe_t**)taosMemoryCalloc(srv->numOfThreads, sizeof(uv_pipe_t*));
|
|
srv->ip = ip;
|
|
srv->port = port;
|
|
uv_loop_init(srv->loop);
|
|
|
|
taosThreadOnce(&transModuleInit, uvInitExHandleMgt);
|
|
transSrvInst++;
|
|
// uvOpenExHandleMgt(10000);
|
|
|
|
for (int i = 0; i < srv->numOfThreads; i++) {
|
|
SWorkThrdObj* thrd = (SWorkThrdObj*)taosMemoryCalloc(1, sizeof(SWorkThrdObj));
|
|
thrd->quit = false;
|
|
srv->pThreadObj[i] = thrd;
|
|
|
|
srv->pipe[i] = (uv_pipe_t*)taosMemoryCalloc(2, sizeof(uv_pipe_t));
|
|
int fds[2];
|
|
if (uv_socketpair(AF_UNIX, SOCK_STREAM, fds, UV_NONBLOCK_PIPE, UV_NONBLOCK_PIPE) != 0) {
|
|
goto End;
|
|
}
|
|
uv_pipe_init(srv->loop, &(srv->pipe[i][0]), 1);
|
|
uv_pipe_open(&(srv->pipe[i][0]), fds[1]); // init write
|
|
|
|
thrd->pTransInst = shandle;
|
|
thrd->fd = fds[0];
|
|
thrd->pipe = &(srv->pipe[i][1]); // init read
|
|
|
|
if (false == addHandleToWorkloop(thrd)) {
|
|
goto End;
|
|
}
|
|
int err = taosThreadCreate(&(thrd->thread), NULL, transWorkerThread, (void*)(thrd));
|
|
if (err == 0) {
|
|
tDebug("sucess to create worker-thread %d", i);
|
|
// printf("thread %d create\n", i);
|
|
} else {
|
|
// TODO: clear all other resource later
|
|
tError("failed to create worker-thread %d", i);
|
|
}
|
|
}
|
|
if (false == addHandleToAcceptloop(srv)) {
|
|
goto End;
|
|
}
|
|
int err = taosThreadCreate(&srv->thread, NULL, transAcceptThread, (void*)srv);
|
|
if (err == 0) {
|
|
tDebug("success to create accept-thread");
|
|
} else {
|
|
// clear all resource later
|
|
}
|
|
|
|
return srv;
|
|
End:
|
|
transCloseServer(srv);
|
|
return NULL;
|
|
}
|
|
|
|
void uvInitExHandleMgt() {
|
|
// init exhandle mgt
|
|
uvOpenExHandleMgt(10000);
|
|
}
|
|
void uvOpenExHandleMgt(int size) {
|
|
// added into once later
|
|
exHandlesMgt = taosOpenRef(size, uvDestoryExHandle);
|
|
}
|
|
void uvCloseExHandleMgt() {
|
|
// close ref
|
|
taosCloseRef(exHandlesMgt);
|
|
}
|
|
int64_t uvAddExHandle(void* p) {
|
|
// acquire extern handle
|
|
return taosAddRef(exHandlesMgt, p);
|
|
}
|
|
int32_t uvRemoveExHandle(int64_t refId) {
|
|
// acquire extern handle
|
|
return taosRemoveRef(exHandlesMgt, refId);
|
|
}
|
|
|
|
SExHandle* uvAcquireExHandle(int64_t refId) {
|
|
// acquire extern handle
|
|
return (SExHandle*)taosAcquireRef(exHandlesMgt, refId);
|
|
}
|
|
|
|
int32_t uvReleaseExHandle(int64_t refId) {
|
|
// release extern handle
|
|
return taosReleaseRef(exHandlesMgt, refId);
|
|
}
|
|
void uvDestoryExHandle(void* handle) {
|
|
if (handle == NULL) {
|
|
return;
|
|
}
|
|
taosMemoryFree(handle);
|
|
}
|
|
|
|
void uvHandleQuit(SSrvMsg* msg, SWorkThrdObj* thrd) {
|
|
thrd->quit = true;
|
|
if (QUEUE_IS_EMPTY(&thrd->conn)) {
|
|
uv_walk(thrd->loop, uvWalkCb, NULL);
|
|
} else {
|
|
destroyAllConn(thrd);
|
|
}
|
|
taosMemoryFree(msg);
|
|
}
|
|
void uvHandleRelease(SSrvMsg* msg, SWorkThrdObj* thrd) {
|
|
SSrvConn* conn = msg->pConn;
|
|
if (conn->status == ConnAcquire) {
|
|
if (!transQueuePush(&conn->srvMsgs, msg)) {
|
|
return;
|
|
}
|
|
uvStartSendRespInternal(msg);
|
|
return;
|
|
} else if (conn->status == ConnRelease || conn->status == ConnNormal) {
|
|
tDebug("server conn %p already released, ignore release-msg", conn);
|
|
}
|
|
destroySmsg(msg);
|
|
}
|
|
void uvHandleResp(SSrvMsg* msg, SWorkThrdObj* thrd) {
|
|
// send msg to client
|
|
tDebug("server conn %p start to send resp (2/2)", msg->pConn);
|
|
uvStartSendResp(msg);
|
|
}
|
|
void uvHandleRegister(SSrvMsg* msg, SWorkThrdObj* thrd) {
|
|
SSrvConn* conn = msg->pConn;
|
|
tDebug("server conn %p register brokenlink callback", conn);
|
|
if (conn->status == ConnAcquire) {
|
|
if (!transQueuePush(&conn->srvMsgs, msg)) {
|
|
return;
|
|
}
|
|
transQueuePop(&conn->srvMsgs);
|
|
conn->regArg.notifyCount = 0;
|
|
conn->regArg.init = 1;
|
|
conn->regArg.msg = msg->msg;
|
|
tDebug("server conn %p register brokenlink callback succ", conn);
|
|
|
|
if (conn->broken) {
|
|
STrans* pTransInst = conn->pTransInst;
|
|
(*pTransInst->cfp)(pTransInst->parent, &(conn->regArg.msg), NULL);
|
|
memset(&conn->regArg, 0, sizeof(conn->regArg));
|
|
}
|
|
taosMemoryFree(msg);
|
|
}
|
|
}
|
|
void destroyWorkThrd(SWorkThrdObj* pThrd) {
|
|
if (pThrd == NULL) {
|
|
return;
|
|
}
|
|
taosThreadJoin(pThrd->thread, NULL);
|
|
SRV_RELEASE_UV(pThrd->loop);
|
|
transDestroyAsyncPool(pThrd->asyncPool);
|
|
taosMemoryFree(pThrd->loop);
|
|
taosMemoryFree(pThrd);
|
|
}
|
|
void sendQuitToWorkThrd(SWorkThrdObj* pThrd) {
|
|
SSrvMsg* msg = taosMemoryCalloc(1, sizeof(SSrvMsg));
|
|
msg->type = Quit;
|
|
tDebug("server send quit msg to work thread");
|
|
transSendAsync(pThrd->asyncPool, &msg->q);
|
|
}
|
|
|
|
void transCloseServer(void* arg) {
|
|
// impl later
|
|
SServerObj* srv = arg;
|
|
|
|
tDebug("send quit msg to accept thread");
|
|
uv_async_send(srv->pAcceptAsync);
|
|
taosThreadJoin(srv->thread, NULL);
|
|
|
|
SRV_RELEASE_UV(srv->loop);
|
|
|
|
for (int i = 0; i < srv->numOfThreads; i++) {
|
|
sendQuitToWorkThrd(srv->pThreadObj[i]);
|
|
destroyWorkThrd(srv->pThreadObj[i]);
|
|
}
|
|
|
|
taosMemoryFree(srv->pThreadObj);
|
|
taosMemoryFree(srv->pAcceptAsync);
|
|
taosMemoryFree(srv->loop);
|
|
|
|
for (int i = 0; i < srv->numOfThreads; i++) {
|
|
taosMemoryFree(srv->pipe[i]);
|
|
}
|
|
taosMemoryFree(srv->pipe);
|
|
|
|
taosMemoryFree(srv);
|
|
|
|
transSrvInst--;
|
|
if (transSrvInst == 0) {
|
|
TdThreadOnce tmpInit = PTHREAD_ONCE_INIT;
|
|
memcpy(&transModuleInit, &tmpInit, sizeof(TdThreadOnce));
|
|
uvCloseExHandleMgt();
|
|
}
|
|
}
|
|
|
|
void transRefSrvHandle(void* handle) {
|
|
if (handle == NULL) {
|
|
return;
|
|
}
|
|
int ref = T_REF_INC((SSrvConn*)handle);
|
|
tDebug("server conn %p ref count: %d", handle, ref);
|
|
}
|
|
|
|
void transUnrefSrvHandle(void* handle) {
|
|
if (handle == NULL) {
|
|
return;
|
|
}
|
|
int ref = T_REF_DEC((SSrvConn*)handle);
|
|
tDebug("server conn %p ref count: %d", handle, ref);
|
|
if (ref == 0) {
|
|
destroyConn((SSrvConn*)handle, true);
|
|
}
|
|
}
|
|
|
|
void transReleaseSrvHandle(void* handle) {
|
|
SExHandle* exh = handle;
|
|
int64_t refId = exh->refId;
|
|
|
|
ASYNC_CHECK_HANDLE(exh, refId);
|
|
|
|
SWorkThrdObj* pThrd = exh->pThrd;
|
|
ASYNC_ERR_JRET(pThrd);
|
|
|
|
STransMsg tmsg = {.code = 0, .handle = exh, .ahandle = NULL, .refId = refId};
|
|
|
|
SSrvMsg* srvMsg = taosMemoryCalloc(1, sizeof(SSrvMsg));
|
|
srvMsg->msg = tmsg;
|
|
srvMsg->type = Release;
|
|
|
|
tTrace("server conn %p start to release", exh->handle);
|
|
transSendAsync(pThrd->asyncPool, &srvMsg->q);
|
|
uvReleaseExHandle(refId);
|
|
return;
|
|
_return1:
|
|
tTrace("server handle %p failed to send to release handle", exh);
|
|
uvReleaseExHandle(refId);
|
|
return;
|
|
_return2:
|
|
tTrace("server handle %p failed to send to release handle", exh);
|
|
return;
|
|
}
|
|
void transSendResponse(const STransMsg* msg) {
|
|
SExHandle* exh = msg->handle;
|
|
int64_t refId = msg->refId;
|
|
ASYNC_CHECK_HANDLE(exh, refId);
|
|
assert(refId != 0);
|
|
|
|
STransMsg tmsg = *msg;
|
|
tmsg.refId = refId;
|
|
|
|
SWorkThrdObj* pThrd = exh->pThrd;
|
|
ASYNC_ERR_JRET(pThrd);
|
|
|
|
SSrvMsg* srvMsg = taosMemoryCalloc(1, sizeof(SSrvMsg));
|
|
srvMsg->msg = tmsg;
|
|
srvMsg->type = Normal;
|
|
tTrace("server conn %p start to send resp (1/2)", exh->handle);
|
|
transSendAsync(pThrd->asyncPool, &srvMsg->q);
|
|
uvReleaseExHandle(refId);
|
|
return;
|
|
_return1:
|
|
tTrace("server handle %p failed to send resp", exh);
|
|
rpcFreeCont(msg->pCont);
|
|
uvReleaseExHandle(refId);
|
|
return;
|
|
_return2:
|
|
tTrace("server handle %p failed to send resp", exh);
|
|
rpcFreeCont(msg->pCont);
|
|
return;
|
|
}
|
|
void transRegisterMsg(const STransMsg* msg) {
|
|
SExHandle* exh = msg->handle;
|
|
int64_t refId = msg->refId;
|
|
ASYNC_CHECK_HANDLE(exh, refId);
|
|
|
|
STransMsg tmsg = *msg;
|
|
tmsg.refId = refId;
|
|
|
|
SWorkThrdObj* pThrd = exh->pThrd;
|
|
ASYNC_ERR_JRET(pThrd);
|
|
|
|
SSrvMsg* srvMsg = taosMemoryCalloc(1, sizeof(SSrvMsg));
|
|
srvMsg->msg = tmsg;
|
|
srvMsg->type = Register;
|
|
tTrace("server conn %p start to register brokenlink callback", exh->handle);
|
|
transSendAsync(pThrd->asyncPool, &srvMsg->q);
|
|
uvReleaseExHandle(refId);
|
|
return;
|
|
_return1:
|
|
tTrace("server handle %p failed to send to register brokenlink", exh);
|
|
rpcFreeCont(msg->pCont);
|
|
uvReleaseExHandle(refId);
|
|
return;
|
|
_return2:
|
|
tTrace("server handle %p failed to send to register brokenlink", exh);
|
|
rpcFreeCont(msg->pCont);
|
|
}
|
|
|
|
int transGetConnInfo(void* thandle, STransHandleInfo* pInfo) {
|
|
if (thandle == NULL) {
|
|
tTrace("invalid handle %p, failed to Get Conn info", thandle);
|
|
return -1;
|
|
}
|
|
SExHandle* ex = thandle;
|
|
SSrvConn* pConn = ex->handle;
|
|
|
|
struct sockaddr_in addr = pConn->addr;
|
|
pInfo->clientIp = (uint32_t)(addr.sin_addr.s_addr);
|
|
pInfo->clientPort = ntohs(addr.sin_port);
|
|
tstrncpy(pInfo->user, pConn->user, sizeof(pInfo->user));
|
|
return 0;
|
|
}
|
|
|
|
#endif
|