share_mem.h

linux/unix共享内存访问包装例子,因考虑在标准C中使用,所以没有封装成类

#ifndef PORTALSERVER_SHARE_MEM_H
#define PORTALSERVER_SHARE_MEM_H

#include "session.h"

#define SYS_QUIT  -1


struct share_memory{
	int queue_id;
	unsigned short int CurrentSN;
	int    count;
	int    command;
	struct AuthSession session_table[65536];
};

struct Msg
{
	long      msg_code;
	unsigned short int SerialNo; /*传递WEB请求时的会话序列号*/	
};

extern struct share_memory *pShm;
extern pthread_mutex_t mutex;
extern pthread_mutex_t mutex_log;

int CreateShm();
int ConnectShm(struct share_memory *pShareMem);
int DisconShm();
int RemoveShm();
int LockShm();
int unLockShm();
void local_log(char *info);

#endif