#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 "proc_def.h"
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#include "lock_free_queue.h"
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#include <functional>
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enum shm_socket_type_t
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{
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SHM_SOCKET_STREAM = 1,
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SHM_SOCKET_DGRAM = 2
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};
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#define BUS_ACTION_STOP 1
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typedef struct shm_packet_t {
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int key;
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size_t size;
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void * buf;
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char uuid[1];
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int action;
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} shm_packet_t;
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typedef struct shm_socket_t {
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shm_socket_type_t socket_type;
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int key;
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bool force_bind;
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pthread_mutex_t mutex;
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LockFreeQueue<shm_packet_t> *queue; //self queue
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LockFreeQueue<shm_packet_t> *remoteQueue; // peer queue
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std::map<std::string, shm_packet_t> recvbuf; // for uuid
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std::map<int, shm_packet_t> recvbuf2; //for thread local
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} shm_socket_t;
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typedef std::function<void(void *recvbuf, int recvsize, int key, void **sendbuf, int *sendsize, void *user_data)> recvandsend_callback_fn;
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size_t shm_socket_remove_keys(int keys[], size_t length);
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size_t shm_socket_remove_keys_exclude(int keys[], size_t length);
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shm_socket_t *shm_socket_open(shm_socket_type_t socket_type);
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int shm_socket_close(shm_socket_t * sockt) ;
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int shm_socket_stop(shm_socket_t * sockt);
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int shm_socket_bind(shm_socket_t * socket, int key) ;
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int shm_socket_force_bind(shm_socket_t * socket, int key) ;
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/**
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* @flags : BUS_NOWAIT_FLAG
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*/
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int shm_sendto(shm_socket_t *socket, const void *buf, const int size, const int key, const struct timespec * timeout = NULL, const int flags=0, int reset = 0, int data_set = 0);
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int shm_recvfrom(shm_socket_t *socket, void **buf, int *size, int *key, const struct timespec * timeout = NULL, int flags=0, int reset = 0, int data_set = 0);
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int shm_sendandrecv(shm_socket_t *socket, const void *send_buf, const int send_size, const int send_key, void **recv_buf, int *recv_size,
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const struct timespec * timeout = NULL, int flags = 0);
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typedef std::set<int, std::less<int>, SHM_STL_Allocator<int> > SvrProc;
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typedef std::map<SHMString, SvrProc *, std::less<SHMString>, SHM_STL_Allocator<std::pair<const SHMString, SvrProc *> > > SvrTcs;
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typedef std::map<int, SHMString, std::less<int>, SHM_STL_Allocator<std::pair<int, const SHMString> > > ProcPartZone;
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/**
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* @callback void (*recvandsend_callback_fn)(void *recvbuf, int recvsize, int key, void **sendbuf, int *sendsize, void * user_data)
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* @recvbuf 收到的数据
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* @recvsize 收到的数据的大小
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* @key 接受数据并并发送数据的对象
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* @sendbuf 存储返回值的地址，表示返回的数据
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* @sendsize 存储返回值的地址， 返回数据的长度
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*
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*/
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int shm_recvandsend(shm_socket_t *sockt, recvandsend_callback_fn callback,
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const struct timespec *timeout = NULL, int flag = 0, void * user_data = NULL);
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void proc_copy(char *dst, void *src, int *count);
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#endif
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