#include "usg_common.h"
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#include "dgram_mod_socket.h"
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#include "shm_socket.h"
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#include "shm_allocator.h"
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#include "mem_pool.h"
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#include "hashtable.h"
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#include "sem_util.h"
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#include "logger_factory.h"
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typedef struct dgram_mod_socket_t {
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socket_mod_t mod;
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shm_socket_t *shm_socket;
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// pthread_t recv_thread;
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// std::map<int, LockFreeQueue<shm_msg_t, DM_Allocator> * > *recv_queue_map;
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} dgram_mod_socket_t;
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void *dgram_mod_open_socket(int mod) {
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dgram_mod_socket_t * socket = (dgram_mod_socket_t *)calloc(1, sizeof(dgram_mod_socket_t));
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socket->mod = (socket_mod_t)mod;
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// socket->recv_thread = 0;
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// socket->recv_queue_map = NULL;
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socket->shm_socket = shm_open_socket(SHM_SOCKET_DGRAM);
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return (void *)socket;
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}
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int dgram_mod_close_socket(void * _socket) {
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dgram_mod_socket_t * socket = (dgram_mod_socket_t *) _socket;
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shm_close_socket(socket->shm_socket);
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// if(socket->recv_queue_map != NULL) {
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// for(auto iter = socket->recv_queue_map->begin(); iter != socket->recv_queue_map->end(); iter++) {
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// delete iter->second;
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// socket->recv_queue_map->erase(iter);
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// }
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// delete socket->recv_queue_map;
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// }
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// if(socket->recv_thread != 0)
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// pthread_cancel(socket->recv_thread);
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free(_socket);
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}
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int dgram_mod_bind(void * _socket, int port){
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dgram_mod_socket_t * socket = (dgram_mod_socket_t *) _socket;
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return shm_socket_bind(socket->shm_socket, port);
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}
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int dgram_mod_sendto(void *_socket, const void *buf, const int size, const int port) {
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dgram_mod_socket_t * socket = (dgram_mod_socket_t *) _socket;
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return shm_sendto(socket->shm_socket, buf, size, port);
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}
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int dgram_mod_recvfrom(void *_socket, void **buf, int *size, int *port) {
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dgram_mod_socket_t * socket = (dgram_mod_socket_t *) _socket;
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// if(socket->mod == REQ_REP && socket->recv_thread != 0) {
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// err_exit(0, "you have used sendandrecv method os you can not use recvfrom method any more. these two method can not be used at the same time.");
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// return -1;
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// }
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return shm_recvfrom(socket->shm_socket, buf, size, port);
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}
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// void *_dgram_mod_run_recv(void * _socket) {
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// pthread_detach(pthread_self());
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// dgram_mod_socket_t * socket = (dgram_mod_socket_t *) _socket;
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// void *buf;
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// int size;
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// int port;
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// shm_msg_t msg;
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// LockFreeQueue<shm_msg_t, DM_Allocator> *queue;
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// std::map<int, LockFreeQueue<shm_msg_t, DM_Allocator> * >::iterator iter;
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// // printf("==============_dgram_mod_run_recv recv before\n");
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// while(shm_recvfrom(socket->shm_socket, &buf, &size, &port) == 0) {
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// if( (iter = socket->recv_queue_map->find(port) ) != socket->recv_queue_map->end()) {
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// queue = iter->second;
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// } else {
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// queue = new LockFreeQueue<shm_msg_t, DM_Allocator>(16);
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// socket->recv_queue_map->insert({port, queue});
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// }
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// msg.buf = buf;
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// msg.size = size;
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// msg.port = port;
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// // printf("==============_dgram_mod_run_recv push before\n");
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// queue->push(msg);
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// // printf("==============_dgram_mod_run_recv push after\n");
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// }
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// return NULL;
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// }
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int dgram_mod_sendandrecv(void * _socket, const void *send_buf, const int send_size, const int send_port, void **recv_buf, int *recv_size) {
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dgram_mod_socket_t * socket = (dgram_mod_socket_t *) _socket;
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if(socket->mod != REQ_REP) {
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err_exit(0, "you can't use this method other than REQ_REP mod!");
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}
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// if(socket->recv_queue_map == NULL) {
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// socket->recv_queue_map = new std::map<int, LockFreeQueue<shm_msg_t, DM_Allocator> * >;
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// }
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// std::map<int, LockFreeQueue<shm_msg_t, DM_Allocator> * >::iterator iter;
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// LockFreeQueue<shm_msg_t, DM_Allocator> *queue;
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// if( (iter = socket->recv_queue_map->find(port) ) != socket->recv_queue_map->end()) {
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// queue = iter->second;
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// } else {
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// queue = new LockFreeQueue<shm_msg_t, DM_Allocator>(16);
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// socket->recv_queue_map->insert({port, queue});
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// }
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// if (socket->recv_thread == 0) {
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// pthread_create(&(socket->recv_thread ), NULL, _dgram_mod_run_recv , _socket);
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// }
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// shm_msg_t msg;
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// if(queue->pop(msg)) {
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// *recv_buf = msg.buf;
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// *recv_size = msg.size;
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// return 0;
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// }
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int recv_port;
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int rv;
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shm_socket_t *shm_socket = shm_open_socket(SHM_SOCKET_DGRAM);
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if (shm_sendto(shm_socket, send_buf, send_size, send_port) == 0) {
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rv = shm_recvfrom(shm_socket, recv_buf, recv_size, &recv_port);
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shm_close_socket(shm_socket);
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return rv;
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}
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return -1;
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}
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