[babeltrace.git] / src / compat / unistd.h

/*
 * SPDX-License-Identifier: MIT
 *
 * Copyright (C) 2016 Michael Jeanson <mjeanson@efficios.com>
 */

#ifndef BABELTRACE_COMPAT_UNISTD_H
#define BABELTRACE_COMPAT_UNISTD_H

#include <unistd.h>

#ifdef __MINGW32__
#include <windows.h>
#include <errno.h>

#define _SC_PAGESIZE 30

static inline
long bt_sysconf(int name)
{
	SYSTEM_INFO si;

	switch(name) {
	case _SC_PAGESIZE:
		GetNativeSystemInfo(&si);
		return si.dwPageSize;
	default:
		errno = EINVAL;
		return -1;
	}
}

#else

static inline
long bt_sysconf(int name)
{
	return sysconf(name);
}

#endif

#endif /* BABELTRACE_COMPAT_UNISTD_H */
Commit	Line	Data
108e5a1e	1	/*
0235b0db	2	* SPDX-License-Identifier: MIT
108e5a1e	3	*
0235b0db	4	* Copyright (C) 2016 Michael Jeanson <mjeanson@efficios.com>
108e5a1e MJ	5	*/
108e5a1e MJ	6
ae2be88d SM	7	#ifndef BABELTRACE_COMPAT_UNISTD_H
ae2be88d SM	8	#define BABELTRACE_COMPAT_UNISTD_H
108e5a1e MJ	9
	10	#include <unistd.h>
	11
	12	#ifdef __MINGW32__
	13	#include <windows.h>
	14	#include <errno.h>
	15
	16	#define _SC_PAGESIZE 30
	17
	18	static inline
	19	long bt_sysconf(int name)
	20	{
	21	SYSTEM_INFO si;
	22
	23	switch(name) {
	24	case _SC_PAGESIZE:
	25	GetNativeSystemInfo(&si);
	26	return si.dwPageSize;
	27	default:
	28	errno = EINVAL;
	29	return -1;
	30	}
	31	}
	32
	33	#else
	34
	35	static inline
	36	long bt_sysconf(int name)
	37	{
	38	return sysconf(name);
	39	}
	40
	41	#endif
ae2be88d SM	42
ae2be88d SM	43	#endif /* BABELTRACE_COMPAT_UNISTD_H */