#include "mod_socket.h"
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#include "shm_socket.h"
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#include "usg_common.h"
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typedef struct mod_entry_t
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{
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int size;
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void *buf;
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shm_socket_t *client_socket;
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}mod_entry_t;
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typedef struct mod_socket_t {
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socket_mod_t mod;
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shm_socket_t *shm_socket;
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shm_socket_t *client_socket;
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int is_server;
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LockFreeQueue<mod_entry_t, DM_Allocator> *recvQueue;
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int slots;
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int items;
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} mod_socket_t;
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/**
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*
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*/
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void *mod_open_socket(int mod) {
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mod_socket_t *socket = (mod_socket_t *)malloc(sizeof(mod_socket_t));
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socket->shm_socket=shm_open_socket();
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socket->is_server = 0;
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socket->mod = (socket_mod_t)mod;
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socket->recvQueue = new LockFreeQueue<mod_entry_t, DM_Allocator>(16);
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if (mod == REQ_REP) {
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socket->slots = SemUtil::get(IPC_PRIVATE, 1);
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socket->items = SemUtil::get(IPC_PRIVATE, 0);
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}
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return (void *)socket;
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}
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int mod_close_socket(void * _socket){
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mod_socket_t * socket = (mod_socket_t *) _socket;
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if (socket->mod == REQ_REP) {
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SemUtil::remove(socket->slots);
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SemUtil::remove(socket->items);
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}
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int rv = shm_close_socket(socket->shm_socket);
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free(_socket);
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return rv;
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}
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int mod_socket_bind(void * _socket, int port){
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mod_socket_t * socket = (mod_socket_t *) _socket;
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return shm_soket_bind(socket->shm_socket, port);
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}
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void * run_server_recv_client_msg(void *_socket) {
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pthread_detach(pthread_self());
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mod_socket_t * socket = (mod_socket_t *) _socket;
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shm_socket_t * client_socket = socket->client_socket;
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mod_entry_t entry;
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entry.client_socket = client_socket;
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while (socket->shm_socket->status == SHM_CONN_LISTEN &&
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client_socket->status == SHM_CONN_ESTABLISHED && shm_recv(client_socket, &entry.buf, &entry.size) == 0 ) {
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socket->recvQueue->push(entry);
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// shm_free(recvbuf);
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}
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free(_socket);
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shm_close_socket(client_socket);
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return NULL;
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}
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void *run_accept_connection(void * _socket) {
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mod_socket_t * socket = (mod_socket_t *) _socket;
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shm_socket_t *client_socket;
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pthread_t tid;
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while(socket->shm_socket->status == SHM_CONN_LISTEN) {
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client_socket = shm_accept(socket->shm_socket);
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mod_socket_t *arg = (mod_socket_t *)malloc(sizeof(mod_socket_t));
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memcpy(arg, _socket, sizeof(mod_socket_t));
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arg->client_socket = client_socket;
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pthread_create(&tid, NULL, run_server_recv_client_msg , (void *)arg);
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}
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return NULL;
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}
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int mod_listen(void * _socket) {
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mod_socket_t * socket = (mod_socket_t *) _socket;
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pthread_t tid;
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socket->is_server = 1;
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int rv = shm_listen(socket->shm_socket);
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if(rv == 0) {
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pthread_create(&tid, NULL, run_accept_connection, _socket);
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return 0;
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}
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return -1;
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}
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int mod_connect(void * _socket, int port) {
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mod_socket_t * socket = (mod_socket_t *) _socket;
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return shm_connect(socket->shm_socket, port);
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}
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int mod_send(void * _socket, void *buf, int size) {
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mod_socket_t * socket = (mod_socket_t *) _socket;
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std::map<int, shm_socket_t* > *clientSocketMap = socket->shm_socket->clientSocketMap;
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std::map<int, shm_socket_t* >::iterator iter;
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int rv;
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if(socket->is_server ) {
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switch(socket->mod) {
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case REQ_REP:
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SemUtil::dec(socket->items);
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rv = shm_send(socket->client_socket, buf, size);
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SemUtil::inc(socket->slots);
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break;
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case PUB_SUB:
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for(iter = clientSocketMap->begin(); iter != clientSocketMap->end(); iter++) {
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rv = shm_send(iter->second, buf, size);
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}
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break;
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default:
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err_exit(0, "不支持的模式%d", socket->mod);
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}
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return rv;
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}
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else {
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return shm_send(socket->shm_socket, buf, size);
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}
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return -1;
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}
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int mod_recv(void * _socket, void **buf, int *size) {
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mod_socket_t * socket = (mod_socket_t *) _socket;
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mod_entry_t entry;
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int rv;
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if(socket->is_server ) {
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switch(socket->mod) {
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case REQ_REP:
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SemUtil::dec(socket->slots);
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rv = socket->recvQueue->pop(entry);
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*buf = entry.buf;
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*size = entry.size;
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socket->client_socket = entry.client_socket;
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SemUtil::inc(socket->items);
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break;
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case PUB_SUB:
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rv = 0;
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break;
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default:
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err_exit(0, "不支持的模式%d", socket->mod);
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}
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return rv;
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}
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else {
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return shm_recv(socket->shm_socket, buf, size);
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}
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return -1;
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}
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void mod_free(void *buf) {
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free(buf);
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}
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