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23 | AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([ |
23 | AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([ |
24 | #include <fcntl.h> |
24 | #include <fcntl.h> |
25 | int main(void) |
25 | int main(void) |
26 | { |
26 | { |
27 | int fd = 0; |
27 | int fd = 0; |
28 | off64_t offset = 1; |
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|
29 | size_t count = 2; |
28 | size_t count = 2; |
30 | ssize_t res; |
29 | ssize_t res; |
31 | res = readahead (fd, offset, count); |
30 | res = readahead (fd, 0, count); |
32 | return 0; |
31 | return 0; |
33 | } |
32 | } |
34 | ],ac_cv_readahead=yes,ac_cv_readahead=no)]) |
33 | ],ac_cv_readahead=yes,ac_cv_readahead=no)]) |
35 | test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) |
34 | test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) |
36 | test $ac_cv_readahead = yes && AC_DEFINE(_GNU_SOURCE, 1, _GNU_SOURCE required for readahead (linux)) |
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|
37 | |
35 | |
38 | AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ |
36 | AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ |
39 | #include <unistd.h> |
37 | #include <unistd.h> |
40 | int main(void) |
38 | int main(void) |
41 | { |
39 | { |
… | |
… | |
59 | res = pwrite (fd, &buf, count, offset); |
57 | res = pwrite (fd, &buf, count, offset); |
60 | return 0; |
58 | return 0; |
61 | } |
59 | } |
62 | ],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)]) |
60 | ],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)]) |
63 | test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available) |
61 | test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available) |
64 | |
|
|
65 | AC_CACHE_CHECK(for readdir_r, ac_cv_readdir_r, [AC_LINK_IFELSE([ |
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|
66 | #include <dirent.h> |
|
|
67 | int main(void) |
|
|
68 | { |
|
|
69 | DIR *dir = 0; |
|
|
70 | struct dirent ent, *eres; |
|
|
71 | int res = readdir_r (dir, &ent, &eres); |
|
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72 | return 0; |
|
|
73 | } |
|
|
74 | ],ac_cv_readdir_r=yes,ac_cv_readdir_r=no)]) |
|
|
75 | test $ac_cv_readdir_r = yes && AC_DEFINE(HAVE_READDIR_R, 1, readdir_r is available) |
|
|
76 | |
62 | |
77 | AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ |
63 | AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ |
78 | # include <sys/types.h> |
64 | # include <sys/types.h> |
79 | #if __linux |
65 | #if __linux |
80 | # include <sys/sendfile.h> |
66 | # include <sys/sendfile.h> |
… | |
… | |
102 | return 0; |
88 | return 0; |
103 | } |
89 | } |
104 | ],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) |
90 | ],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) |
91 | test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) |
106 | |
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; |
|
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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)]) |
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106 | test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
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107 | |