| 1 |
AC_SEARCH_LIBS( |
| 2 |
pthread_create, |
| 3 |
[pthread pthreads pthreadVC2], |
| 4 |
, |
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[AC_MSG_ERROR(pthread functions not found)] |
| 6 |
) |
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|
| 8 |
AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[ |
| 9 |
#include <sys/types.h> |
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#include <sys/time.h> |
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#include <utime.h> |
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struct timeval tv[2]; |
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int res; |
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int fd; |
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int main(void) |
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{ |
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res = futimes (fd, tv); |
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return 0; |
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} |
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]],ac_cv_futimes=yes,ac_cv_futimes=no)]) |
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test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available) |
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|
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AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([ |
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#include <fcntl.h> |
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int main(void) |
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{ |
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int fd = 0; |
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size_t count = 2; |
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ssize_t res; |
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res = readahead (fd, 0, count); |
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return 0; |
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} |
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],ac_cv_readahead=yes,ac_cv_readahead=no)]) |
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test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) |
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|
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AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ |
| 37 |
#include <unistd.h> |
| 38 |
int main(void) |
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{ |
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int fd = 0; |
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fdatasync (fd); |
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return 0; |
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} |
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],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
| 45 |
test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) |
| 46 |
|
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AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([ |
| 48 |
#include <unistd.h> |
| 49 |
int main(void) |
| 50 |
{ |
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int fd = 0; |
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size_t count = 1; |
| 53 |
char buf; |
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off_t offset = 1; |
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ssize_t res; |
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res = pread (fd, &buf, count, offset); |
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res = pwrite (fd, &buf, count, offset); |
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return 0; |
| 59 |
} |
| 60 |
],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)]) |
| 61 |
test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available) |
| 62 |
|
| 63 |
AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ |
| 64 |
# include <sys/types.h> |
| 65 |
#if __linux |
| 66 |
# include <sys/sendfile.h> |
| 67 |
#elif __FreeBSD__ || defined __APPLE__ |
| 68 |
# include <sys/socket.h> |
| 69 |
# include <sys/uio.h> |
| 70 |
#elif __hpux |
| 71 |
# include <sys/socket.h> |
| 72 |
#else |
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# error unsupported architecture |
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#endif |
| 75 |
int main(void) |
| 76 |
{ |
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int fd = 0; |
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off_t offset = 1; |
| 79 |
size_t count = 2; |
| 80 |
ssize_t res; |
| 81 |
#if __linux |
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res = sendfile (fd, fd, offset, count); |
| 83 |
#elif __FreeBSD__ |
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res = sendfile (fd, fd, offset, count, 0, &offset, 0); |
| 85 |
#elif __hpux |
| 86 |
res = sendfile (fd, fd, offset, count, 0, 0); |
| 87 |
#endif |
| 88 |
return 0; |
| 89 |
} |
| 90 |
],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) |
| 91 |
test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) |
| 92 |
|
| 93 |
AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([ |
| 94 |
#include <fcntl.h> |
| 95 |
int main(void) |
| 96 |
{ |
| 97 |
int fd = 0; |
| 98 |
off64_t offset = 1; |
| 99 |
off64_t nbytes = 1; |
| 100 |
unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER; |
| 101 |
ssize_t res; |
| 102 |
res = sync_file_range (fd, offset, nbytes, flags); |
| 103 |
return 0; |
| 104 |
} |
| 105 |
],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) |
| 106 |
test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
| 107 |
|
