| | |
| | | static int shm_sendpakto(shm_socket_t *sockt, const shm_packet_t *sendpak, |
| | | const int key, const struct timespec *timeout, const int flag); |
| | | |
| | | |
| | | static int _shm_sendandrecv_uuid(shm_socket_t *sockt, const void *send_buf, |
| | | const int send_size, const int key, void **recv_buf, |
| | | int *recv_size, const struct timespec *timeout, int flags); |
| | | |
| | | static int _shm_sendandrecv_thread_local(shm_socket_t *sockt, const void *send_buf, |
| | | const int send_size, const int send_key, void **recv_buf, |
| | | int *recv_size, const struct timespec *timeout, int flags) ; |
| | | |
| | | // 检查key是否已经被使用, 未被使用则绑定key |
| | | static LockFreeQueue<shm_packet_t> * shm_socket_bind_queue(int key, bool force) { |
| | | hashtable_t *hashtable = mm_get_hashtable(); |
| | |
| | | return queue; |
| | | } |
| | | |
| | | //删除包含在keys内的queue |
| | | size_t shm_socket_remove_keys(int keys[], size_t length) { |
| | | hashtable_t *hashtable = mm_get_hashtable(); |
| | | LockFreeQueue<shm_packet_t> *mqueue; |
| | | size_t count = 0; |
| | | for(int i = 0; i< length; i++) { |
| | | // 销毁共享内存的queue |
| | | mqueue = (LockFreeQueue<shm_packet_t> *)hashtable_get(hashtable, keys[i]); |
| | | delete mqueue; |
| | | hashtable_remove(hashtable, keys[i]); |
| | | count++; |
| | | } |
| | | return count; |
| | | } |
| | | |
| | | |
| | | // 删除不在keys内的queue |
| | | size_t shm_socket_remove_keys_exclude(int keys[], size_t length) { |
| | | hashtable_t *hashtable = mm_get_hashtable(); |
| | | std::set<int> *keyset = hashtable_keyset(hashtable); |
| | | std::set<int>::iterator keyItr; |
| | | LockFreeQueue<shm_packet_t> *mqueue; |
| | | bool found; |
| | | size_t count = 0; |
| | | for (keyItr = keyset->begin(); keyItr != keyset->end(); keyItr++) { |
| | | found = false; |
| | | for (size_t i = 0; i < length; i++) { |
| | | if (*keyItr == keys[i]) { |
| | | found = true; |
| | | break; |
| | | } |
| | | } |
| | | // 100内的是bus内部自己用的 |
| | | if (!found && *keyItr > 100) { |
| | | // 销毁共享内存的queue |
| | | mqueue = (LockFreeQueue<shm_packet_t> *)hashtable_get(hashtable, *keyItr); |
| | | delete mqueue; |
| | | hashtable_remove(hashtable, *keyItr); |
| | | count++; |
| | | } |
| | | } |
| | | delete keyset; |
| | | return count; |
| | | } |
| | | |
| | | |
| | | |
| | | shm_socket_t *shm_open_socket(shm_socket_type_t socket_type) { |
| | | shm_socket_t *shm_socket_open(shm_socket_type_t socket_type) { |
| | | int s, type; |
| | | pthread_mutexattr_t mtxAttr; |
| | | |
| | | logger->debug("shm_open_socket\n"); |
| | | logger->debug("shm_socket_open\n"); |
| | | // shm_socket_t *socket = (shm_socket_t *)calloc(1, sizeof(shm_socket_t)); |
| | | shm_socket_t *sockt = new shm_socket_t; |
| | | sockt->socket_type = socket_type; |
| | |
| | | return sockt; |
| | | } |
| | | |
| | | int shm_close_socket(shm_socket_t *sockt) { |
| | | |
| | | int shm_socket_close(shm_socket_t *sockt) { |
| | | |
| | | int rv; |
| | | logger->debug("shm_close_socket\n"); |
| | | logger->debug("shm_socket_close\n"); |
| | | if(sockt->queue != NULL) { |
| | | delete sockt->queue; |
| | | sockt->queue = NULL; |
| | |
| | | |
| | | rv = pthread_mutex_destroy(&(sockt->mutex) ); |
| | | if(rv != 0) { |
| | | err_exit(rv, "shm_close_socket"); |
| | | err_exit(rv, "shm_socket_close"); |
| | | } |
| | | |
| | | free(sockt); |
| | |
| | | return rv; |
| | | } |
| | | |
| | | |
| | | |
| | | int shm_sendandrecv(shm_socket_t *sockt, const void *send_buf, |
| | | const int send_size, const int key, void **recv_buf, |
| | | int *recv_size, const struct timespec *timeout, int flags) { |
| | | // return _shm_sendandrecv_uuid(sockt, send_buf, send_size, key, recv_buf, recv_size, timeout, flags); |
| | | return _shm_sendandrecv_thread_local(sockt, send_buf, send_size, key, recv_buf, recv_size, timeout, flags); |
| | | } |
| | | |
| | | int rv, tryn = 3; |
| | | shm_packet_t sendpak; |
| | | shm_packet_t recvpak; |
| | | std::map<std::string, shm_packet_t>::iterator recvbufIter; |
| | | |
| | | std::string uuid = sole::uuid4().str(); |
| | | |
| | | sendpak.key = sockt->key; |
| | | sendpak.size = send_size; |
| | | if(send_buf != NULL) { |
| | | sendpak.buf = mm_malloc(send_size); |
| | | memcpy(sendpak.buf, send_buf, send_size); |
| | | } |
| | | memcpy(sendpak.uuid, uuid.c_str(), uuid.length() + 1); |
| | | // uuid.copy(sendpak.uuid, sizeof sendpak.uuid); |
| | | rv = shm_sendpakto(sockt, &sendpak, key, timeout, flags); |
| | | |
| | | if(rv != 0) { |
| | | return rv; |
| | | } |
| | | |
| | | while(tryn > 0) { |
| | | tryn--; |
| | | recvbufIter = sockt->recvbuf.find(uuid); |
| | | if(recvbufIter != sockt->recvbuf.end()) { |
| | | // 在缓存里查到了UUID匹配成功的 |
| | | logger->debug("get from recvbuf: %s", uuid.c_str()); |
| | | recvpak = recvbufIter->second; |
| | | sockt->recvbuf.erase(recvbufIter); |
| | | goto LABLE_SUC; |
| | | } |
| | | |
| | | rv = shm_recvpakfrom(sockt, &recvpak, timeout, flags); |
| | | |
| | | if (rv != 0) { |
| | | |
| | | if(rv == ETIMEDOUT) { |
| | | return EBUS_TIMEOUT; |
| | | } |
| | | |
| | | logger->debug("%d shm_recvfrom failed %s", shm_socket_get_key(sockt), bus_strerror(rv)); |
| | | return rv; |
| | | } |
| | | |
| | | logger->debug("send uuid:%s, recv uuid: %s", uuid.c_str(), recvpak.uuid); |
| | | if(strlen(recvpak.uuid) == 0) { |
| | | continue; |
| | | } else if (strncmp(uuid.c_str(), recvpak.uuid, sizeof recvpak.uuid) == 0) { |
| | | // 发送与接受的UUID匹配成功 |
| | | goto LABLE_SUC; |
| | | } else { |
| | | // 答非所问,放到缓存里 |
| | | sockt->recvbuf.insert({recvpak.uuid, recvpak}); |
| | | continue; |
| | | } |
| | | } |
| | | |
| | | LABLE_FAIL: |
| | | return EBUS_RECVFROM_WRONG_END; |
| | | // return rv; |
| | | |
| | | LABLE_SUC: |
| | | if(recv_buf != NULL) { |
| | | void *_buf = malloc(recvpak.size); |
| | | memcpy(_buf, recvpak.buf, recvpak.size); |
| | | *recv_buf = _buf; |
| | | } |
| | | |
| | | if(recv_size != NULL) |
| | | *recv_size = recvpak.size; |
| | | |
| | | mm_free(recvpak.buf); |
| | | |
| | | return 0; |
| | | |
| | | |
| | | |
| | | } |
| | | |
| | | /** |
| | | * @callback void (*recvandsend_callback_fn)(void *recvbuf, int recvsize, int key, void **sendbuf, int *sendsize) |
| | |
| | | return; |
| | | |
| | | logger->debug("%d destroy tmp socket\n", pthread_self()); |
| | | shm_close_socket((shm_socket_t *)tmp_socket); |
| | | shm_socket_close((shm_socket_t *)tmp_socket); |
| | | rv = pthread_setspecific(_perthread_socket_key_, NULL); |
| | | if ( rv != 0) { |
| | | logger->error(rv, "shm_sendandrecv : pthread_setspecific"); |
| | |
| | | } |
| | | |
| | | |
| | | // use thread local |
| | | int _shm_sendandrecv_thread_local(shm_socket_t *sockt, const void *send_buf, |
| | | const int send_size, const int send_key, void **recv_buf, |
| | | static int _shm_sendandrecv_uuid(shm_socket_t *sockt, const void *send_buf, |
| | | const int send_size, const int key, void **recv_buf, |
| | | int *recv_size, const struct timespec *timeout, int flags) { |
| | | int recv_key; |
| | | int rv; |
| | | int tryn = 0; |
| | | |
| | | int rv, tryn = 3; |
| | | shm_packet_t sendpak; |
| | | shm_packet_t recvpak; |
| | | std::map<std::string, shm_packet_t>::iterator recvbufIter; |
| | | |
| | | std::string uuid = sole::uuid4().str(); |
| | | |
| | | sendpak.key = sockt->key; |
| | | sendpak.size = send_size; |
| | | if(send_buf != NULL) { |
| | | sendpak.buf = mm_malloc(send_size); |
| | | memcpy(sendpak.buf, send_buf, send_size); |
| | | } |
| | | memcpy(sendpak.uuid, uuid.c_str(), uuid.length() + 1); |
| | | // uuid.copy(sendpak.uuid, sizeof sendpak.uuid); |
| | | rv = shm_sendpakto(sockt, &sendpak, key, timeout, flags); |
| | | |
| | | if(rv != 0) { |
| | | return rv; |
| | | } |
| | | |
| | | while(tryn > 0) { |
| | | tryn--; |
| | | recvbufIter = sockt->recvbuf.find(uuid); |
| | | if(recvbufIter != sockt->recvbuf.end()) { |
| | | // 在缓存里查到了UUID匹配成功的 |
| | | logger->debug("get from recvbuf: %s", uuid.c_str()); |
| | | recvpak = recvbufIter->second; |
| | | sockt->recvbuf.erase(recvbufIter); |
| | | goto LABLE_SUC; |
| | | } |
| | | |
| | | rv = shm_recvpakfrom(sockt, &recvpak, timeout, flags); |
| | | |
| | | if (rv != 0) { |
| | | |
| | | if(rv == ETIMEDOUT) { |
| | | return EBUS_TIMEOUT; |
| | | } |
| | | |
| | | logger->debug("%d shm_recvfrom failed %s", shm_socket_get_key(sockt), bus_strerror(rv)); |
| | | return rv; |
| | | } |
| | | |
| | | logger->debug("send uuid:%s, recv uuid: %s", uuid.c_str(), recvpak.uuid); |
| | | if(strlen(recvpak.uuid) == 0) { |
| | | continue; |
| | | } else if (strncmp(uuid.c_str(), recvpak.uuid, sizeof recvpak.uuid) == 0) { |
| | | // 发送与接受的UUID匹配成功 |
| | | goto LABLE_SUC; |
| | | } else { |
| | | // 答非所问,放到缓存里 |
| | | sockt->recvbuf.insert({recvpak.uuid, recvpak}); |
| | | continue; |
| | | } |
| | | } |
| | | |
| | | LABLE_FAIL: |
| | | return EBUS_RECVFROM_WRONG_END; |
| | | |
| | | LABLE_SUC: |
| | | if(recv_buf != NULL) { |
| | | void *_buf = malloc(recvpak.size); |
| | | memcpy(_buf, recvpak.buf, recvpak.size); |
| | | *recv_buf = _buf; |
| | | mm_free(recvpak.buf); |
| | | } |
| | | |
| | | if(recv_size != NULL) |
| | | *recv_size = recvpak.size; |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | // use thread local |
| | | static int _shm_sendandrecv_thread_local(shm_socket_t *sockt, const void *send_buf, |
| | | const int send_size, const int key, void **recv_buf, |
| | | int *recv_size, const struct timespec *timeout, int flags) { |
| | | |
| | | |
| | | int rv, tryn = 6; |
| | | shm_packet_t sendpak; |
| | | shm_packet_t recvpak; |
| | | std::map<int, shm_packet_t>::iterator recvbufIter; |
| | | // 用thread local 保证每个线程用一个独占的socket接受对方返回的信息 |
| | | shm_socket_t *tmp_socket; |
| | | |
| | |
| | | { |
| | | /* If first call from this thread, allocate buffer for thread, and save its location */ |
| | | logger->debug("%ld create tmp socket\n", (long)pthread_self() ); |
| | | tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM); |
| | | tmp_socket = shm_socket_open(SHM_SOCKET_DGRAM); |
| | | |
| | | rv = pthread_setspecific(_perthread_socket_key_, tmp_socket); |
| | | if ( rv != 0) { |
| | |
| | | exit(1); |
| | | } |
| | | } |
| | | |
| | | |
| | | if ((rv = shm_sendto(tmp_socket, send_buf, send_size, send_key, timeout, flags)) == 0) { |
| | | sendpak.key = tmp_socket->key; |
| | | sendpak.size = send_size; |
| | | if(send_buf != NULL) { |
| | | sendpak.buf = mm_malloc(send_size); |
| | | memcpy(sendpak.buf, send_buf, send_size); |
| | | } |
| | | rv = shm_sendpakto(tmp_socket, &sendpak, key, timeout, flags); |
| | | |
| | | while(tryn < 3) { |
| | | tryn++; |
| | | rv = shm_recvfrom(tmp_socket, recv_buf, recv_size, &recv_key, timeout, flags); |
| | | if(rv != 0) { |
| | | logger->error("_shm_sendandrecv_thread_local : %s\n", bus_strerror(rv)); |
| | | return rv; |
| | | } |
| | | |
| | | // 超时导致接发送对象,与返回对象不对应的情况 |
| | | if(send_key != recv_key) { |
| | | logger->debug("======%d use tmp_socket %d, send to %d, receive from %d\n", shm_socket_get_key(sockt), shm_socket_get_key(tmp_socket), send_key, recv_key); |
| | | // logger->error( "_shm_sendandrecv_alloc_new: send key expect to equal to recv key! send key =%d , recv key=%d", send_key, recv_key); |
| | | // exit(1); |
| | | continue; |
| | | // return EBUS_RECVFROM_WRONG_END; |
| | | } |
| | | if(rv != 0) { |
| | | return rv; |
| | | } |
| | | |
| | | return 0; |
| | | while(tryn > 0) { |
| | | tryn--; |
| | | recvbufIter = tmp_socket->recvbuf2.find(key); |
| | | if(recvbufIter != tmp_socket->recvbuf2.end()) { |
| | | // 在缓存里查到了key匹配成功的 |
| | | // logger->info("get from recvbuf: %d", key); |
| | | recvpak = recvbufIter->second; |
| | | tmp_socket->recvbuf2.erase(recvbufIter); |
| | | goto LABLE_SUC; |
| | | } |
| | | |
| | | return EBUS_RECVFROM_WRONG_END; |
| | | } |
| | | |
| | | return rv; |
| | | rv = shm_recvpakfrom(tmp_socket, &recvpak, timeout, flags); |
| | | |
| | | if (rv != 0) { |
| | | |
| | | if(rv == ETIMEDOUT) { |
| | | return EBUS_TIMEOUT; |
| | | } |
| | | |
| | | logger->debug("%d shm_recvfrom failed %s", shm_socket_get_key(tmp_socket), bus_strerror(rv)); |
| | | return rv; |
| | | } |
| | | |
| | | if (key == recvpak.key) { |
| | | // 发送与接受的UUID匹配成功 |
| | | goto LABLE_SUC; |
| | | } else { |
| | | // 答非所问,放到缓存里 |
| | | tmp_socket->recvbuf2.insert({recvpak.key, recvpak}); |
| | | continue; |
| | | } |
| | | } |
| | | |
| | | LABLE_FAIL: |
| | | return EBUS_RECVFROM_WRONG_END; |
| | | |
| | | LABLE_SUC: |
| | | if(recv_buf != NULL) { |
| | | void *_buf = malloc(recvpak.size); |
| | | memcpy(_buf, recvpak.buf, recvpak.size); |
| | | *recv_buf = _buf; |
| | | mm_free(recvpak.buf); |
| | | } |
| | | |
| | | if(recv_size != NULL) |
| | | *recv_size = recvpak.size; |
| | | |
| | | |
| | | return 0; |
| | | } |
| | | |
| | | int _shm_sendandrecv_alloc_new(shm_socket_t *sockt, const void *send_buf, |
| | | static int _shm_sendandrecv_alloc_new(shm_socket_t *sockt, const void *send_buf, |
| | | const int send_size, const int send_key, void **recv_buf, |
| | | int *recv_size, const struct timespec *timeout, int flags) { |
| | | int recv_key; |
| | |
| | | shm_socket_t *tmp_socket; |
| | | |
| | | |
| | | tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM); |
| | | tmp_socket = shm_socket_open(SHM_SOCKET_DGRAM); |
| | | |
| | | if ((rv = shm_sendto(tmp_socket, send_buf, send_size, send_key, timeout, flags)) == 0) { |
| | | rv = shm_recvfrom(tmp_socket, recv_buf, recv_size, &recv_key, timeout, flags); |
| | |
| | | return EBUS_RECVFROM_WRONG_END; |
| | | } |
| | | |
| | | shm_close_socket(tmp_socket); |
| | | shm_socket_close(tmp_socket); |
| | | return rv; |
| | | |
| | | } |