1 |
AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[ |
2 |
#include <sys/types.h> |
3 |
#include <sys/time.h> |
4 |
#include <utime.h> |
5 |
struct timeval tv[2]; |
6 |
int res; |
7 |
int fd; |
8 |
int main(void) |
9 |
{ |
10 |
res = futimes (fd, tv); |
11 |
return 0; |
12 |
} |
13 |
]],ac_cv_futimes=yes,ac_cv_futimes=no)]) |
14 |
test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available) |
15 |
|
16 |
AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([ |
17 |
#include <fcntl.h> |
18 |
int main(void) |
19 |
{ |
20 |
int fd = 0; |
21 |
off64_t offset = 1; |
22 |
size_t count = 2; |
23 |
ssize_t res; |
24 |
res = readahead (fd, offset, count); |
25 |
return 0; |
26 |
} |
27 |
],ac_cv_readahead=yes,ac_cv_readahead=no)]) |
28 |
test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) |
29 |
|
30 |
AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ |
31 |
#include <unistd.h> |
32 |
int main(void) |
33 |
{ |
34 |
int fd = 0; |
35 |
fdatasync (fd); |
36 |
return 0; |
37 |
} |
38 |
],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
39 |
test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) |
40 |
|
41 |
AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([ |
42 |
#include <unistd.h> |
43 |
int main(void) |
44 |
{ |
45 |
int fd = 0; |
46 |
size_t count = 1; |
47 |
char buf; |
48 |
off_t offset = 1; |
49 |
ssize_t res; |
50 |
res = pread (fd, &buf, count, offset); |
51 |
res = pwrite (fd, &buf, count, offset); |
52 |
return 0; |
53 |
} |
54 |
],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)]) |
55 |
test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available) |
56 |
|
57 |
AC_CACHE_CHECK(for readdir_r, ac_cv_readdir_r, [AC_LINK_IFELSE([ |
58 |
#include <dirent.h> |
59 |
int main(void) |
60 |
{ |
61 |
DIR *dir = 0; |
62 |
struct dirent ent, *eres; |
63 |
int res = readdir_r (dir, &ent, &eres); |
64 |
return 0; |
65 |
} |
66 |
],ac_cv_readdir_r=yes,ac_cv_readdir_r=no)]) |
67 |
test $ac_cv_readdir_r = yes && AC_DEFINE(HAVE_READDIR_R, 1, readdir_r is available) |
68 |
|
69 |
AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ |
70 |
# include <sys/types.h> |
71 |
#if __linux |
72 |
# include <sys/sendfile.h> |
73 |
#elif __freebsd |
74 |
# include <sys/socket.h> |
75 |
# include <sys/uio.h> |
76 |
#elif __hpux |
77 |
# include <sys/socket.h> |
78 |
#else |
79 |
# error unsupported architecture |
80 |
#endif |
81 |
int main(void) |
82 |
{ |
83 |
int fd = 0; |
84 |
off_t offset = 1; |
85 |
size_t count = 2; |
86 |
ssize_t res; |
87 |
#if __linux |
88 |
res = sendfile (fd, fd, offset, count); |
89 |
#elif __freebsd |
90 |
res = sendfile (fd, fd, offset, count, 0, &offset, 0); |
91 |
#elif __hpux |
92 |
res = sendfile (fd, fd, offset, count, 0, 0); |
93 |
#endif |
94 |
return 0; |
95 |
} |
96 |
],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) |
97 |
test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) |
98 |
|