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60 | return 0; |
60 | return 0; |
61 | } |
61 | } |
62 | ],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
62 | ],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
63 | test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) |
63 | test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available) |
64 | |
64 | |
65 | AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([ |
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66 | #include <unistd.h> |
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67 | int main (void) |
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68 | { |
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69 | int fd = 0; |
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70 | size_t count = 1; |
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71 | char buf; |
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72 | off_t offset = 1; |
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73 | ssize_t res; |
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74 | res = pread (fd, &buf, count, offset); |
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75 | res = pwrite (fd, &buf, count, offset); |
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76 | return 0; |
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77 | } |
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78 | ],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)]) |
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79 | test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available) |
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80 | |
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81 | AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ |
65 | AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ |
82 | # include <sys/types.h> |
66 | # include <sys/types.h> |
83 | #if __linux |
67 | #if __linux |
84 | # include <sys/sendfile.h> |
68 | # include <sys/sendfile.h> |
85 | #elif __FreeBSD__ || defined __APPLE__ |
69 | #elif __FreeBSD__ || defined __APPLE__ |
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121 | return 0; |
105 | return 0; |
122 | } |
106 | } |
123 | ],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) |
107 | ],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) |
124 | test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
108 | test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
125 | |
109 | |
126 | AC_CACHE_CHECK(for fallocate, ac_cv_fallocate, [AC_LINK_IFELSE([ |
110 | AC_CACHE_CHECK(for fallocate, ac_cv_linux_fallocate, [AC_LINK_IFELSE([ |
127 | #include <fcntl.h> |
111 | #include <fcntl.h> |
128 | int main (void) |
112 | int main (void) |
129 | { |
113 | { |
130 | int fd = 0; |
114 | int fd = 0; |
131 | int mode = 0; |
115 | int mode = 0; |
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133 | off_t len = 1; |
117 | off_t len = 1; |
134 | int res; |
118 | int res; |
135 | res = fallocate (fd, mode, offset, len); |
119 | res = fallocate (fd, mode, offset, len); |
136 | return 0; |
120 | return 0; |
137 | } |
121 | } |
138 | ],ac_cv_fallocate=yes,ac_cv_fallocate=no)]) |
122 | ],ac_cv_linux_fallocate=yes,ac_cv_linux_fallocate=no)]) |
139 | test $ac_cv_fallocate = yes && AC_DEFINE(HAVE_FALLOCATE, 1, fallocate(2) is available) |
123 | test $ac_cv_linux_fallocate = yes && AC_DEFINE(HAVE_LINUX_FALLOCATE, 1, fallocate(2) is available) |
140 | |
124 | |
141 | AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([ |
125 | AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([ |
142 | #include <unistd.h> |
126 | #include <unistd.h> |
143 | #include <sys/syscall.h> |
127 | #include <sys/syscall.h> |
144 | int main (void) |
128 | int main (void) |
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191 | return 0; |
175 | return 0; |
192 | } |
176 | } |
193 | ],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
177 | ],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
194 | test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
178 | test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
195 | |
179 | |
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180 | dnl lots of linux specifics |
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181 | AC_CHECK_HEADERS([linux/fs.h linux/fiemap.h]) |
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182 | |
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183 | AC_CACHE_CHECK([for splice, vmsplice and tee], ac_cv_linux_splice, [AC_LINK_IFELSE([ |
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184 | #include <fcntl.h> |
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185 | int main (void) |
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186 | { |
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187 | ssize_t res; |
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188 | res = splice ((int)0, (loff_t)0, (int)0, (loff_t *)0, (size_t)0, SPLICE_F_MOVE | SPLICE_F_NONBLOCK | SPLICE_F_MORE); |
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189 | res = tee ((int)0, (int)0, (size_t)0, SPLICE_F_NONBLOCK); |
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190 | res = vmsplice ((int)0, (struct iovec *)0, 0, SPLICE_F_NONBLOCK | SPLICE_F_GIFT); |
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191 | return 0; |
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192 | } |
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193 | ],ac_cv_linux_splice=yes,ac_cv_linux_splice=no)]) |
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194 | test $ac_cv_linux_splice = yes && AC_DEFINE(HAVE_LINUX_SPLICE, 1, splice/vmsplice/tee(2) are available) |
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195 | |