patch-2.1.2 linux/include/linux/sem.h
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- Lines: 127
- Date:
Mon Oct 7 15:12:29 1996
- Orig file:
v2.1.1/linux/include/linux/sem.h
- Orig date:
Sun Aug 4 14:38:04 1996
diff -u --recursive --new-file v2.1.1/linux/include/linux/sem.h linux/include/linux/sem.h
@@ -1,5 +1,6 @@
#ifndef _LINUX_SEM_H
#define _LINUX_SEM_H
+
#include <linux/ipc.h>
/* semop flags */
@@ -16,43 +17,43 @@
/* One semid data structure for each set of semaphores in the system. */
struct semid_ds {
- struct ipc_perm sem_perm; /* permissions .. see ipc.h */
- time_t sem_otime; /* last semop time */
- time_t sem_ctime; /* last change time */
- struct sem *sem_base; /* ptr to first semaphore in array */
- struct sem_queue *sem_pending; /* pending operations to be processed */
- struct sem_queue **sem_pending_last; /* last pending operation */
- struct sem_undo *undo; /* undo requests on this array */
- ushort sem_nsems; /* no. of semaphores in array */
+ struct ipc_perm sem_perm; /* permissions .. see ipc.h */
+ __kernel_time_t sem_otime; /* last semop time */
+ __kernel_time_t sem_ctime; /* last change time */
+ struct sem *sem_base; /* ptr to first semaphore in array */
+ struct sem_queue *sem_pending; /* pending operations to be processed */
+ struct sem_queue **sem_pending_last; /* last pending operation */
+ struct sem_undo *undo; /* undo requests on this array */
+ unsigned short sem_nsems; /* no. of semaphores in array */
};
/* semop system calls takes an array of these. */
struct sembuf {
- ushort sem_num; /* semaphore index in array */
- short sem_op; /* semaphore operation */
- short sem_flg; /* operation flags */
+ unsigned short sem_num; /* semaphore index in array */
+ short sem_op; /* semaphore operation */
+ short sem_flg; /* operation flags */
};
/* arg for semctl system calls. */
union semun {
- int val; /* value for SETVAL */
- struct semid_ds *buf; /* buffer for IPC_STAT & IPC_SET */
- ushort *array; /* array for GETALL & SETALL */
- struct seminfo *__buf; /* buffer for IPC_INFO */
- void *__pad;
+ int val; /* value for SETVAL */
+ struct semid_ds *buf; /* buffer for IPC_STAT & IPC_SET */
+ unsigned short *array; /* array for GETALL & SETALL */
+ struct seminfo *__buf; /* buffer for IPC_INFO */
+ void *__pad;
};
struct seminfo {
- int semmap;
- int semmni;
- int semmns;
- int semmnu;
- int semmsl;
- int semopm;
- int semume;
- int semusz;
- int semvmx;
- int semaem;
+ int semmap;
+ int semmni;
+ int semmns;
+ int semmnu;
+ int semmsl;
+ int semopm;
+ int semume;
+ int semusz;
+ int semvmx;
+ int semaem;
};
#define SEMMNI 128 /* ? max # of semaphore identifiers */
@@ -72,8 +73,8 @@
/* One semaphore structure for each semaphore in the system. */
struct sem {
- short semval; /* current value */
- short sempid; /* pid of last operation */
+ int semval; /* current value */
+ int sempid; /* pid of last operation */
};
/* ipcs ctl cmds */
@@ -82,25 +83,25 @@
/* One queue for each semaphore set in the system. */
struct sem_queue {
- struct sem_queue * next; /* next entry in the queue */
- struct sem_queue ** prev; /* previous entry in the queue, *(q->prev) == q */
- struct wait_queue * sleeper; /* sleeping process */
- struct sem_undo * undo; /* undo structure */
- int pid; /* process id of requesting process */
- int status; /* completion status of operation */
- struct semid_ds * sma; /* semaphore array for operations */
- struct sembuf * sops; /* array of pending operations */
- int nsops; /* number of operations */
+ struct sem_queue * next; /* next entry in the queue */
+ struct sem_queue ** prev; /* previous entry in the queue, *(q->prev) == q */
+ struct wait_queue * sleeper; /* sleeping process */
+ struct sem_undo * undo; /* undo structure */
+ int pid; /* process id of requesting process */
+ int status; /* completion status of operation */
+ struct semid_ds * sma; /* semaphore array for operations */
+ struct sembuf * sops; /* array of pending operations */
+ int nsops; /* number of operations */
};
/* Each task has a list of undo requests. They are executed automatically
* when the process exits.
*/
struct sem_undo {
- struct sem_undo * proc_next; /* next entry on this process */
- struct sem_undo * id_next; /* next entry on this semaphore set */
- int semid; /* semaphore set identifier */
- short * semadj; /* array of adjustments, one per semaphore */
+ struct sem_undo * proc_next; /* next entry on this process */
+ struct sem_undo * id_next; /* next entry on this semaphore set */
+ int semid; /* semaphore set identifier */
+ short * semadj; /* array of adjustments, one per semaphore */
};
asmlinkage int sys_semget (key_t key, int nsems, int semflg);
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