libeio/libeio.m4

AC_SEARCH_LIBS(
   pthread_create,
   [pthread pthreads pthreadVC2],
   ,
   [AC_MSG_ERROR(pthread functions not found)]
)

AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([[
#include <sys/types.h>
#include <sys/time.h>
#include <utime.h>
struct timeval tv[2];
int res;
int main (void)
{
   res = utimes ("/", tv);
   return 0;
}
]],ac_cv_utimes=yes,ac_cv_utimes=no)])
test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available)

AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[
#include <sys/types.h>
#include <sys/time.h>
#include <utime.h>
struct timeval tv[2];
int res;
int fd;
int main (void)
{
   res = futimes (fd, tv);
   return 0;
}
]],ac_cv_futimes=yes,ac_cv_futimes=no)])
test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available)

AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([
#include <fcntl.h>
int main (void)
{
   int fd = 0;
   size_t count = 2;
   ssize_t res;
   res = readahead (fd, 0, count);
   return 0;
}
],ac_cv_readahead=yes,ac_cv_readahead=no)])
test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux))

AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([
#include <unistd.h>
int main (void)
{
   int fd = 0;
   fdatasync (fd);
   return 0;
}
],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)])
test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available)

AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([
#include <unistd.h>
int main (void)
{
   int fd = 0;
   size_t count = 1;
   char buf;
   off_t offset = 1;
   ssize_t res;
   res = pread (fd, &buf, count, offset);
   res = pwrite (fd, &buf, count, offset);
   return 0;
}
],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)])
test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available)

AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([
# include <sys/types.h>
#if __linux
# include <sys/sendfile.h>
#elif __FreeBSD__ || defined __APPLE__
# include <sys/socket.h>
# include <sys/uio.h>
#elif __hpux
# include <sys/socket.h>
#else
# error unsupported architecture
#endif
int main (void)
{
   int fd = 0;
   off_t offset = 1;
   size_t count = 2;
   ssize_t res;
#if __linux
   res = sendfile (fd, fd, offset, count);
#elif __FreeBSD__
   res = sendfile (fd, fd, offset, count, 0, &offset, 0);
#elif __hpux
   res = sendfile (fd, fd, offset, count, 0, 0);
#endif
   return 0;
}
],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)

AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([
#include <fcntl.h>
int main (void)
{
   int fd = 0;
   off64_t offset = 1;
   off64_t nbytes = 1;
   unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER;
   ssize_t res;
   res = sync_file_range (fd, offset, nbytes, flags);
   return 0;
}
],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)])
test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available)

dnl #############################################################################
dnl # these checks exist for the benefit of IO::AIO

dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required
dnl functionality actually being present. ugh.
AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([
#include <sys/mman.h>
int main (void)
{
   int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL);
   int a = POSIX_MADV_SEQUENTIAL;
   int b = POSIX_MADV_RANDOM;
   int c = POSIX_MADV_WILLNEED;
   int d = POSIX_MADV_DONTNEED;
   return 0;
}
],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)])
test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available)

AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([
#define _XOPEN_SOURCE 600
#include <fcntl.h>
int main (void)
{
   int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL);
   int a = POSIX_FADV_SEQUENTIAL;
   int b = POSIX_FADV_NOREUSE;
   int c = POSIX_FADV_RANDOM;
   int d = POSIX_FADV_WILLNEED;
   int e = POSIX_FADV_DONTNEED;
   return 0;
}
],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)])
test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available)

Revision:	1.12
Committed:	Thu Dec 2 10:04:48 2010 UTC (13 years, 5 months ago) by root
Branch:	MAIN
CVS Tags:	rel-3_71, rel-3_9, rel-3_8
Changes since 1.11:	+35 -0 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.2	AC_SEARCH_LIBS(
2			pthread_create,
3			[pthread pthreads pthreadVC2],
4			,
5			[AC_MSG_ERROR(pthread functions not found)]
6			)
7
8	root	1.11	AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([[
9			#include <sys/types.h>
10			#include <sys/time.h>
11			#include <utime.h>
12			struct timeval tv[2];
13			int res;
14			int main (void)
15			{
16			res = utimes ("/", tv);
17			return 0;
18			}
19			]],ac_cv_utimes=yes,ac_cv_utimes=no)])
20			test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available)
21
22	root	1.1	AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[
23			#include <sys/types.h>
24			#include <sys/time.h>
25			#include <utime.h>
26			struct timeval tv[2];
27			int res;
28			int fd;
29	root	1.10	int main (void)
30	root	1.1	{
31			res = futimes (fd, tv);
32			return 0;
33			}
34			]],ac_cv_futimes=yes,ac_cv_futimes=no)])
35			test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available)
36
37			AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([
38			#include <fcntl.h>
39	root	1.10	int main (void)
40	root	1.1	{
41			int fd = 0;
42			size_t count = 2;
43			ssize_t res;
44	root	1.5	res = readahead (fd, 0, count);
45	root	1.1	return 0;
46			}
47			],ac_cv_readahead=yes,ac_cv_readahead=no)])
48			test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux))
49
50			AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([
51			#include <unistd.h>
52	root	1.10	int main (void)
53	root	1.1	{
54			int fd = 0;
55			fdatasync (fd);
56			return 0;
57			}
58			],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)])
59			test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available)
60
61			AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([
62			#include <unistd.h>
63	root	1.10	int main (void)
64	root	1.1	{
65			int fd = 0;
66			size_t count = 1;
67			char buf;
68			off_t offset = 1;
69			ssize_t res;
70			res = pread (fd, &buf, count, offset);
71			res = pwrite (fd, &buf, count, offset);
72			return 0;
73			}
74			],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)])
75			test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available)
76
77			AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([
78			# include <sys/types.h>
79			#if __linux
80			# include <sys/sendfile.h>
81	root	1.9	#elif __FreeBSD__ \|\| defined __APPLE__
82	root	1.1	# include <sys/socket.h>
83			# include <sys/uio.h>
84			#elif __hpux
85			# include <sys/socket.h>
86			#else
87			# error unsupported architecture
88			#endif
89	root	1.10	int main (void)
90	root	1.1	{
91			int fd = 0;
92			off_t offset = 1;
93			size_t count = 2;
94			ssize_t res;
95			#if __linux
96			res = sendfile (fd, fd, offset, count);
97	root	1.9	#elif __FreeBSD__
98	root	1.1	res = sendfile (fd, fd, offset, count, 0, &offset, 0);
99			#elif __hpux
100			res = sendfile (fd, fd, offset, count, 0, 0);
101			#endif
102			return 0;
103			}
104			],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
105			test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)
106
107	root	1.7	AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([
108			#include <fcntl.h>
109	root	1.10	int main (void)
110	root	1.7	{
111			int fd = 0;
112			off64_t offset = 1;
113			off64_t nbytes = 1;
114			unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE\|SYNC_FILE_RANGE_WRITE\|SYNC_FILE_RANGE_WAIT_AFTER;
115			ssize_t res;
116			res = sync_file_range (fd, offset, nbytes, flags);
117			return 0;
118			}
119			],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)])
120			test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available)
121
122	root	1.12	dnl #############################################################################
123			dnl # these checks exist for the benefit of IO::AIO
124
125			dnl at least uclibc defines _POSIX_ADVISORY_INFO without any of the required
126			dnl functionality actually being present. ugh.
127			AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([
128			#include <sys/mman.h>
129			int main (void)
130			{
131			int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL);
132			int a = POSIX_MADV_SEQUENTIAL;
133			int b = POSIX_MADV_RANDOM;
134			int c = POSIX_MADV_WILLNEED;
135			int d = POSIX_MADV_DONTNEED;
136			return 0;
137			}
138			],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)])
139			test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available)
140
141			AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([
142			#define _XOPEN_SOURCE 600
143			#include <fcntl.h>
144			int main (void)
145			{
146			int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL);
147			int a = POSIX_FADV_SEQUENTIAL;
148			int b = POSIX_FADV_NOREUSE;
149			int c = POSIX_FADV_RANDOM;
150			int d = POSIX_FADV_WILLNEED;
151			int e = POSIX_FADV_DONTNEED;
152			return 0;
153			}
154			],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)])
155			test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available)
156