#ifndef __SHM_SOCKET_H__
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#define __SHM_SOCKET_H__
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#include "usg_common.h"
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#include "usg_typedef.h"
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#include "shm_queue.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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#ifdef __cplusplus
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extern "C" {
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#endif
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enum shm_msg_type_t
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{
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SHM_SOCKET_OPEN = 1,
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SHM_SOCKET_OPEN_REPLY = 2,
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SHM_SOCKET_CLOSE = 3,
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SHM_COMMON_MSG = 4
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};
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enum shm_connection_status_t {
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SHM_CONN_CLOSED=1,
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SHM_CONN_LISTEN=2,
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SHM_CONN_ESTABLISHED=3
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};
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typedef struct shm_msg_t {
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int port;
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shm_msg_type_t type;
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size_t size;
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void * buf;
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} shm_msg_t;
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typedef struct shm_socket_t {
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// 本地port
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int port;
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shm_connection_status_t status;
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SHMQueue<shm_msg_t> *queue;
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SHMQueue<shm_msg_t> *remoteQueue;
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LockFreeQueue<shm_msg_t, DM_Allocator> *messageQueue;
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LockFreeQueue<shm_msg_t, DM_Allocator> *acceptQueue;
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std::map<int, shm_socket_t* > *clientSocketMap;
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pthread_t dispatch_thread;
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} shm_socket_t;
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/**
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* 初始化共享内存
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* @size 共享内存大小, 单位M
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*
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*/
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void shm_init(int size);
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/**
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* 销毁共享内存
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* 整个进程退出时需要执行这个方法，该方法首先会检查是否还有其他进程在使用该共享内存，如果还有其他进程在使用就只是detach,如果没有其他进程在使用则销毁整块内存。
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*/
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void shm_destroy();
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/**
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* 释放recv方法分配的buf
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*/
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void shm_free(void *buf);
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shm_socket_t *shm_open_socket();
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int shm_close_socket(shm_socket_t * socket) ;
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int shm_soket_bind(shm_socket_t * socket, int port) ;
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int shm_listen(shm_socket_t * socket) ;
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shm_socket_t* shm_accept(shm_socket_t* socket);
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int shm_connect(shm_socket_t * socket, int port);
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int shm_send(shm_socket_t * socket, const void *buf, const int size) ;
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int shm_recv(shm_socket_t * socket, void **buf, int *size) ;
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#ifdef __cplusplus
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}
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#endif
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#endif
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