sem.h

来自「ADS环境下的类似linux内核的操作系统」· C头文件 代码 · 共 29 行

/* MShowTec - www.mshowtec.com
** msLinux sem.h ver1.0
** 20051221 lmjx create [e-mail]
** 
*/

#ifndef MSLINUX_SEM_H
#define MSLINUX_SEM_H

struct semaphore
{
	short sem_num;
	short sem_used;
	long sem_max;
	long sem_init;
	long sem_val;
	struct task_struct *sem_wait;
};

#define MSLINUX_MAX_SEM_NUM		(256)

int semaphore_init(short sem_num,short sem_max,short sem_init);
int semaphore_take(short sem_num);
int semaphore_give(short sem_num);

void mslinux_semaphore_init(void);

#endif