[lttng-tools.git] / src / common / compat / fcntl.h

/*
 * Copyright (C) 2011 David Goulet <dgoulet@efficios.com>
 *
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 */

#ifndef _COMPAT_FCNTL_H
#define _COMPAT_FCNTL_H

#include <fcntl.h>
#include <sys/types.h>

#include <common/compat/errno.h>

#if (defined(__CYGWIN__))
typedef long long off64_t;
#endif

#if (defined(__FreeBSD__) || defined(__sun__))
typedef off64_t loff_t;
#endif

#ifdef __linux__
extern int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes,
		unsigned int flags);
#define lttng_sync_file_range(fd, offset, nbytes, flags) \
	compat_sync_file_range(fd, offset, nbytes, flags)

#endif /* __linux__ */

#if (defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__))
/*
 * Possible flags under Linux. Simply nullify them and avoid wrapper.
 */
#define SYNC_FILE_RANGE_WAIT_AFTER    0
#define SYNC_FILE_RANGE_WAIT_BEFORE   0
#define SYNC_FILE_RANGE_WRITE         0

static inline int lttng_sync_file_range(int fd, off64_t offset,
		off64_t nbytes, unsigned int flags)
{
	return -ENOSYS;
}
#endif

#if (defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__))
/*
 * Possible flags under Linux. Simply nullify them and avoid wrappers.
 */
#define SPLICE_F_MOVE       0
#define SPLICE_F_NONBLOCK   0
#define SPLICE_F_MORE       0
#define SPLICE_F_GIFT       0

static inline ssize_t splice(int fd_in, loff_t *off_in, int fd_out, loff_t *off_out,
		size_t len, unsigned int flags)
{
	return -ENOSYS;
}
#endif

#if !(defined(__linux__) || defined(__FreeBSD__) || defined(__CYGWIN__) || defined(__sun__) || defined(__APPLE__))
#error "Please add support for your OS."
#endif /* __linux__ , __FreeBSD__, __CYGWIN__, __sun__, __APPLE__ */

#endif /* _COMPAT_FCNTL_H */
Commit	Line	Data
	1	/*
	2	* Copyright (C) 2011 David Goulet <dgoulet@efficios.com>
	3	*
	4	* SPDX-License-Identifier: LGPL-2.1-only
	5	*
	6	*/
	7
	8	#ifndef _COMPAT_FCNTL_H
	9	#define _COMPAT_FCNTL_H
	10
	11	#include <fcntl.h>
	12	#include <sys/types.h>
	13
	14	#include <common/compat/errno.h>
	15
	16	#if (defined(__CYGWIN__))
	17	typedef long long off64_t;
	18	#endif
	19
	20	#if (defined(__FreeBSD__) \|\| defined(__sun__))
	21	typedef off64_t loff_t;
	22	#endif
	23
	24	#ifdef __linux__
	25	extern int compat_sync_file_range(int fd, off64_t offset, off64_t nbytes,
	26	unsigned int flags);
	27	#define lttng_sync_file_range(fd, offset, nbytes, flags) \
	28	compat_sync_file_range(fd, offset, nbytes, flags)
	29
	30	#endif /* __linux__ */
	31
	32	#if (defined(__FreeBSD__) \|\| defined(__CYGWIN__) \|\| defined(__sun__))
	33	/*
	34	* Possible flags under Linux. Simply nullify them and avoid wrapper.
	35	*/
	36	#define SYNC_FILE_RANGE_WAIT_AFTER 0
	37	#define SYNC_FILE_RANGE_WAIT_BEFORE 0
	38	#define SYNC_FILE_RANGE_WRITE 0
	39
	40	static inline int lttng_sync_file_range(int fd, off64_t offset,
	41	off64_t nbytes, unsigned int flags)
	42	{
	43	return -ENOSYS;
	44	}
	45	#endif
	46
	47	#if (defined(__FreeBSD__) \|\| defined(__CYGWIN__) \|\| defined(__sun__))
	48	/*
	49	* Possible flags under Linux. Simply nullify them and avoid wrappers.
	50	*/
	51	#define SPLICE_F_MOVE 0
	52	#define SPLICE_F_NONBLOCK 0
	53	#define SPLICE_F_MORE 0
	54	#define SPLICE_F_GIFT 0
	55
	56	static inline ssize_t splice(int fd_in, loff_t off_in, int fd_out, loff_t off_out,
	57	size_t len, unsigned int flags)
	58	{
	59	return -ENOSYS;
	60	}
	61	#endif
	62
	63	#if !(defined(__linux__) \|\| defined(__FreeBSD__) \|\| defined(__CYGWIN__) \|\| defined(__sun__) \|\| defined(__APPLE__))
	64	#error "Please add support for your OS."
	65	#endif /* __linux__ , __FreeBSD__, __CYGWIN__, __sun__, __APPLE__ */
	66
	67	#endif /* _COMPAT_FCNTL_H */