session.h

Oracle调用接口

#ifndef __SESSION_H_
#define __SESSION_H_

#include <errno.h>

#include <sys/ipc.h>
#include <sys/sem.h>
#include <sys/shm.h>
#include <sys/types.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
// C++ includes 
#include <map>
#include <vector>
#include <string>

#define FKEY "/tmp/session"
#define PROJ 57
#define MAXSESSIONS 512
#define MAXSESSIZE 2048
#define SIDSIZE 9 /* nineth byte is for 0 */
#define EXPIRE  600 /* seconds */
#define ALLSIZE (sizeof(int)+sizeof(session)*MAXSESSIONS)

typedef struct _session {
	time_t touched;
	char sid[SIDSIZE];
	char data[MAXSESSIZE];
} session;

typedef struct _sessionslist {
	int nsessions;
	int seed; // for srand to generate unique id
	session s[MAXSESSIONS];
} sessionslist;

class Session {
private:
	map<string,string> data;
	time_t	touched;
public:
	Session();
	Session(char *data,time_t touched);
	~Session();
	void init(char *data,time_t touched);
	string &get(const string &key);
	time_t getTouched() const { return touched; }
	void set(const string &key,const string &val);
	char *to_string();
};

bool getSession(const char *sid,Session &s);
bool addSession(const char *sid,Session &s);
bool destroy();
bool getInfo(int &,int &,vector<string> &,vector<string> &,vector<time_t> &);
char *getUniqueId();
void cleanUp(sessionslist *slist);
int getSemID(key_t key);
int getShmID(key_t key);
int lockSession(int semid);
int unlockSession(int semid);
bool removeSessions();

#endif