83 lines
1.6 KiB
C
83 lines
1.6 KiB
C
/*
|
|
* SPDX-License-Identifier: MIT
|
|
*
|
|
* Copyright (C) 2018 Philippe Gerum <rpm@xenomai.org>
|
|
*/
|
|
|
|
#ifndef _EVL_SEM_H
|
|
#define _EVL_SEM_H
|
|
|
|
#include <time.h>
|
|
#include <evl/atomic.h>
|
|
#include <linux/types.h>
|
|
#include <uapi/evl/types.h>
|
|
#include <uapi/evl/monitor.h>
|
|
#include <uapi/evl/clock.h>
|
|
#include <uapi/evl/factory.h>
|
|
|
|
struct evl_sem {
|
|
unsigned int magic;
|
|
union {
|
|
struct {
|
|
fundle_t fundle;
|
|
struct evl_monitor_state *state;
|
|
int efd;
|
|
} active;
|
|
struct {
|
|
const char *name;
|
|
int clockfd;
|
|
int initval;
|
|
int flags;
|
|
} uninit;
|
|
} u;
|
|
};
|
|
|
|
#define __SEM_UNINIT_MAGIC 0xed15ed15
|
|
|
|
#define EVL_SEM_INITIALIZER(__name, __clockfd, __initval, __flags) { \
|
|
.magic = __SEM_UNINIT_MAGIC, \
|
|
.u = { \
|
|
.uninit = { \
|
|
.name = (__name), \
|
|
.clockfd = (__clockfd), \
|
|
.initval = (__initval), \
|
|
.flags = (__flags), \
|
|
} \
|
|
} \
|
|
}
|
|
|
|
#define evl_new_sem(__sem, __fmt, __args...) \
|
|
evl_create_sem(__sem, EVL_CLOCK_MONOTONIC, 0, \
|
|
EVL_CLONE_PRIVATE, __fmt, ##__args)
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
int evl_create_sem(struct evl_sem *sem,
|
|
int clockfd, int initval, int flags,
|
|
const char *fmt, ...);
|
|
|
|
int evl_open_sem(struct evl_sem *sem,
|
|
const char *fmt, ...);
|
|
|
|
int evl_close_sem(struct evl_sem *sem);
|
|
|
|
int evl_get_sem(struct evl_sem *sem);
|
|
|
|
int evl_timedget_sem(struct evl_sem *sem,
|
|
const struct timespec *timeout);
|
|
|
|
int evl_put_sem(struct evl_sem *sem);
|
|
|
|
int evl_tryget_sem(struct evl_sem *sem);
|
|
|
|
int evl_peek_sem(struct evl_sem *sem,
|
|
int *r_val);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _EVL_SEM_H */
|