[lttng-modules.git] / wrapper / fdtable.h

/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
 *
 * wrapper/fdtable.h
 *
 * Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#ifndef _LTTNG_WRAPPER_FDTABLE_H
#define _LTTNG_WRAPPER_FDTABLE_H

#include <linux/version.h>
#include <linux/fdtable.h>

#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0))

int lttng_iterate_fd(struct files_struct *files,
		unsigned int first,
		int (*cb)(const void *, struct file *, unsigned int),
		const void *ctx);

#else

/*
 * iterate_fd() appeared at commit
 * c3c073f808b22dfae15ef8412b6f7b998644139a in the Linux kernel (first
 * released kernel: v3.7).
 */
#define lttng_iterate_fd	iterate_fd

#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))

static inline bool lttng_close_on_exec(int fd, const struct fdtable *fdt)
{
	return close_on_exec(fd, fdt);
}

#else

static inline bool lttng_close_on_exec(int fd, const struct fdtable *fdt)
{
	return FD_ISSET(fd, fdt->close_on_exec);
}

#endif

#endif /* _LTTNG_WRAPPER_FDTABLE_H */
Commit	Line	Data
	1	/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
	2	*
	3	* wrapper/fdtable.h
	4	*
	5	* Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
	6	*/
	7
	8	#ifndef _LTTNG_WRAPPER_FDTABLE_H
	9	#define _LTTNG_WRAPPER_FDTABLE_H
	10
	11	#include <linux/version.h>
	12	#include <linux/fdtable.h>
	13
	14	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,7,0))
	15
	16	int lttng_iterate_fd(struct files_struct *files,
	17	unsigned int first,
	18	int (cb)(const void , struct file *, unsigned int),
	19	const void *ctx);
	20
	21	#else
	22
	23	/*
	24	* iterate_fd() appeared at commit
	25	* c3c073f808b22dfae15ef8412b6f7b998644139a in the Linux kernel (first
	26	* released kernel: v3.7).
	27	*/
	28	#define lttng_iterate_fd iterate_fd
	29
	30	#endif
	31
	32	#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
	33
	34	static inline bool lttng_close_on_exec(int fd, const struct fdtable *fdt)
	35	{
	36	return close_on_exec(fd, fdt);
	37	}
	38
	39	#else
	40
	41	static inline bool lttng_close_on_exec(int fd, const struct fdtable *fdt)
	42	{
	43	return FD_ISSET(fd, fdt->close_on_exec);
	44	}
	45
	46	#endif
	47
	48	#endif /* _LTTNG_WRAPPER_FDTABLE_H */