| | |
| | | } |
| | | |
| | | static pthread_once_t _once_ = PTHREAD_ONCE_INIT; |
| | | static pthread_key_t _perthread_socket_key_; |
| | | static pthread_key_t _localthread_socket_key_; |
| | | |
| | | static void _destrory_socket_perthread(void *tmp_socket); |
| | | static void _create_socket_key_perthread(void); |
| | | static void _destrory_threadlocal_socket_(void *tmp_socket); |
| | | static void _create_threadlocal_socket_key_(void); |
| | | |
| | | static int shm_recvpakfrom(shm_socket_t *sockt, shm_packet_t *recvpak , const struct timespec *timeout, int flag); |
| | | |
| | |
| | | |
| | | |
| | | int shm_socket_close(shm_socket_t *sockt) { |
| | | |
| | | shm_socket_t * threadlocal_socket = (shm_socket_t *)pthread_getspecific(_localthread_socket_key_); |
| | | if(threadlocal_socket != NULL) { |
| | | _destrory_threadlocal_socket_(threadlocal_socket); |
| | | } |
| | | return _shm_socket_close_(sockt); |
| | | } |
| | | |
| | |
| | | // ================================================================================================= |
| | | |
| | | /* Free thread-specific data buffer */ |
| | | static void _destrory_socket_perthread(void *tmp_socket) |
| | | static void _destrory_threadlocal_socket_(void *tmp_socket) |
| | | { |
| | | int rv; |
| | | |
| | | logger->debug("%d destroy threadlocal socket\n", pthread_self()); |
| | | |
| | | if(tmp_socket == NULL) |
| | | return; |
| | | |
| | | logger->debug("%d destroy tmp socket\n", pthread_self()); |
| | | |
| | | _shm_socket_close_((shm_socket_t *)tmp_socket); |
| | | rv = pthread_setspecific(_perthread_socket_key_, NULL); |
| | | rv = pthread_setspecific(_localthread_socket_key_, NULL); |
| | | if ( rv != 0) { |
| | | logger->error(rv, "shm_sendandrecv : pthread_setspecific"); |
| | | exit(1); |
| | |
| | | } |
| | | |
| | | /* One-time key creation function */ |
| | | static void _create_socket_key_perthread(void) |
| | | static void _create_threadlocal_socket_key_(void) |
| | | { |
| | | int s; |
| | | |
| | | /* Allocate a unique thread-specific data key and save the address |
| | | of the destructor for thread-specific data buffers */ |
| | | s = pthread_key_create(&_perthread_socket_key_, _destrory_socket_perthread); |
| | | //s = pthread_key_create(&_perthread_socket_key_, NULL); |
| | | s = pthread_key_create(&_localthread_socket_key_, _destrory_threadlocal_socket_); |
| | | //s = pthread_key_create(&_localthread_socket_key_, NULL); |
| | | if (s != 0) { |
| | | logger->error(s, "pthread_key_create"); |
| | | exit(1); |
| | |
| | | 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; |
| | | shm_socket_t *tmp_socket = NULL; |
| | | |
| | | rv = pthread_once(&_once_, _create_socket_key_perthread); |
| | | rv = pthread_once(&_once_, _create_threadlocal_socket_key_); |
| | | if (rv != 0) { |
| | | logger->error(rv, "shm_sendandrecv pthread_once"); |
| | | exit(1); |
| | | } |
| | | |
| | | tmp_socket = (shm_socket_t *)pthread_getspecific(_perthread_socket_key_); |
| | | tmp_socket = (shm_socket_t *)pthread_getspecific(_localthread_socket_key_); |
| | | if (tmp_socket == NULL) |
| | | { |
| | | /* If first call from this thread, allocate buffer for thread, and save its location */ |
| | | logger->debug("%ld create tmp socket\n", (long)pthread_self() ); |
| | | logger->debug("%lu create threadlocal socket\n", (long)pthread_self() ); |
| | | tmp_socket = shm_socket_open(SHM_SOCKET_DGRAM); |
| | | |
| | | rv = pthread_setspecific(_perthread_socket_key_, tmp_socket); |
| | | rv = pthread_setspecific(_localthread_socket_key_, tmp_socket); |
| | | if ( rv != 0) { |
| | | logger->error(rv, "shm_sendandrecv : pthread_setspecific"); |
| | | exit(1); |
| | |
| | | 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)); |
| | | logger->error("_shm_sendandrecv_alloc_new : %s\n", bus_strerror(rv)); |
| | | return rv; |
| | | } |
| | | |