acl/lib_acl/include/stdlib/acl_myflock.h

#ifndef ACL_FLOCK_INCLUDE_H
#define ACL_FLOCK_INCLUDE_H

#ifdef  __cplusplus
extern "C" {
#endif

#include "acl_define.h"

/**
 * <EFBFBD>Դ򿪵<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><EFBFBD><EFBFBD>
 * @param fd {ACL_FILE_HANDLE} <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 * @param lock_style {int} ϵͳ<EFBFBD>ṩ<EFBFBD><EFBFBD>API<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>UNIX<EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD>
 *  ACL_FLOCK_STYLE_FLOCK or ACL_FLOCK_STYLE_FCNTL
 * @param operation {int} <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ, ACL_FLOCK_OP_XXX
 * @return {int} 0: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD>; -1: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD><EFBFBD>
 */
ACL_API int acl_myflock(ACL_FILE_HANDLE fd, int lock_style, int operation);

/*
 * Lock styles.
 */
#define ACL_FLOCK_STYLE_FLOCK     1  /**< <20><><EFBFBD><EFBFBD> flock <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(unix) */
#define ACL_FLOCK_STYLE_FCNTL     2  /**< <20><><EFBFBD><EFBFBD> fcntl <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(unix) */

/*
 * Lock request types.
 */
#define ACL_FLOCK_OP_NONE         0  /**< <20><><EFBFBD><EFBFBD> */
#define ACL_FLOCK_OP_SHARED       1  /**< <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
#define ACL_FLOCK_OP_EXCLUSIVE    2  /**< <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */

/**
 * <EFBFBD>޵ȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACL_FLOCK_OP_SHARED, <EFBFBD><EFBFBD> ACL_FLOCK_OP_EXCLUSIVE <EFBFBD><EFBFBD><EFBFBD><EFBFBD>,
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACL_FLOCK_OP_SHARED <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
#define ACL_FLOCK_OP_NOWAIT       4

/**
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
#define ACL_FLOCK_OP_BITS \
	(ACL_FLOCK_OP_SHARED | ACL_FLOCK_OP_EXCLUSIVE | ACL_FLOCK_OP_NOWAIT)

#ifdef  __cplusplus
}
#endif

#endif