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1 | dnl openbsd in it's neverending brokenness requires stdint.h for intptr_t, |
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2 | dnl but that header isn't very portable... |
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3 | AC_CHECK_HEADERS([stdint.h sys/syscall.h sys/prctl.h]) |
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4 | |
1 | AC_SEARCH_LIBS( |
5 | AC_SEARCH_LIBS( |
2 | pthread_create, |
6 | pthread_create, |
3 | [pthread pthreads pthreadVC2], |
7 | [pthread pthreads pthreadVC2], |
4 | , |
8 | , |
5 | [AC_MSG_ERROR(pthread functions not found)] |
9 | [AC_MSG_ERROR(pthread functions not found)] |
6 | ) |
10 | ) |
7 | |
11 | |
8 | AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[ |
12 | AC_CACHE_CHECK(for utimes, ac_cv_utimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
9 | #include <sys/types.h> |
13 | #include <sys/types.h> |
10 | #include <sys/time.h> |
14 | #include <sys/time.h> |
11 | #include <utime.h> |
15 | #include <utime.h> |
12 | struct timeval tv[2]; |
16 | struct timeval tv[2]; |
13 | int res; |
17 | int res; |
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18 | int main (void) |
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19 | { |
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20 | res = utimes ("/", tv); |
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21 | return 0; |
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22 | } |
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23 | ]])],ac_cv_utimes=yes,ac_cv_utimes=no)]) |
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24 | test $ac_cv_utimes = yes && AC_DEFINE(HAVE_UTIMES, 1, utimes(2) is available) |
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25 | |
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26 | AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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27 | #include <sys/types.h> |
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28 | #include <sys/time.h> |
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29 | #include <utime.h> |
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30 | struct timeval tv[2]; |
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31 | int res; |
14 | int fd; |
32 | int fd; |
15 | int main(void) |
33 | int main (void) |
16 | { |
34 | { |
17 | res = futimes (fd, tv); |
35 | res = futimes (fd, tv); |
18 | return 0; |
36 | return 0; |
19 | } |
37 | } |
20 | ]],ac_cv_futimes=yes,ac_cv_futimes=no)]) |
38 | ]])],ac_cv_futimes=yes,ac_cv_futimes=no)]) |
21 | test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available) |
39 | test $ac_cv_futimes = yes && AC_DEFINE(HAVE_FUTIMES, 1, futimes(2) is available) |
22 | |
40 | |
23 | AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([ |
41 | AC_CACHE_CHECK(for readahead, ac_cv_readahead, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
24 | #include <fcntl.h> |
42 | #include <fcntl.h> |
25 | int main(void) |
43 | int main (void) |
26 | { |
44 | { |
27 | int fd = 0; |
45 | int fd = 0; |
28 | off64_t offset = 1; |
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29 | size_t count = 2; |
46 | size_t count = 2; |
30 | ssize_t res; |
47 | ssize_t res; |
31 | res = readahead (fd, offset, count); |
48 | res = readahead (fd, 0, count); |
32 | return 0; |
49 | return 0; |
33 | } |
50 | } |
34 | ],ac_cv_readahead=yes,ac_cv_readahead=no)]) |
51 | ])],ac_cv_readahead=yes,ac_cv_readahead=no)]) |
35 | test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) |
52 | test $ac_cv_readahead = yes && AC_DEFINE(HAVE_READAHEAD, 1, readahead(2) is available (linux)) |
36 | |
53 | |
37 | AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([ |
54 | AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
38 | #include <unistd.h> |
55 | #include <unistd.h> |
39 | int main(void) |
56 | int main (void) |
40 | { |
57 | { |
41 | int fd = 0; |
58 | int fd = 0; |
42 | fdatasync (fd); |
59 | fdatasync (fd); |
43 | return 0; |
60 | return 0; |
44 | } |
61 | } |
45 | ],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
62 | ])],ac_cv_fdatasync=yes,ac_cv_fdatasync=no)]) |
46 | 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) |
47 | |
64 | |
48 | AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([ |
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49 | #include <unistd.h> |
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50 | int main(void) |
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51 | { |
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52 | int fd = 0; |
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53 | size_t count = 1; |
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54 | char buf; |
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55 | off_t offset = 1; |
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56 | ssize_t res; |
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57 | res = pread (fd, &buf, count, offset); |
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58 | res = pwrite (fd, &buf, count, offset); |
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59 | return 0; |
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60 | } |
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61 | ],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)]) |
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62 | test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available) |
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63 | |
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64 | AC_CACHE_CHECK(for readdir_r, ac_cv_readdir_r, [AC_LINK_IFELSE([ |
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65 | #include <dirent.h> |
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66 | int main(void) |
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67 | { |
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68 | DIR *dir = 0; |
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69 | struct dirent ent, *eres; |
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70 | int res = readdir_r (dir, &ent, &eres); |
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71 | return 0; |
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72 | } |
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73 | ],ac_cv_readdir_r=yes,ac_cv_readdir_r=no)]) |
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74 | test $ac_cv_readdir_r = yes && AC_DEFINE(HAVE_READDIR_R, 1, readdir_r is available) |
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75 | |
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76 | AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([ |
65 | AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
77 | # include <sys/types.h> |
66 | # include <sys/types.h> |
78 | #if __linux |
67 | #if __linux |
79 | # include <sys/sendfile.h> |
68 | # include <sys/sendfile.h> |
80 | #elif __freebsd |
69 | #elif __FreeBSD__ || defined __APPLE__ |
81 | # include <sys/socket.h> |
70 | # include <sys/socket.h> |
82 | # include <sys/uio.h> |
71 | # include <sys/uio.h> |
83 | #elif __hpux |
72 | #elif __hpux |
84 | # include <sys/socket.h> |
73 | # include <sys/socket.h> |
85 | #else |
74 | #else |
86 | # error unsupported architecture |
75 | # error unsupported architecture |
87 | #endif |
76 | #endif |
88 | int main(void) |
77 | int main (void) |
89 | { |
78 | { |
90 | int fd = 0; |
79 | int fd = 0; |
91 | off_t offset = 1; |
80 | off_t offset = 1; |
92 | size_t count = 2; |
81 | size_t count = 2; |
93 | ssize_t res; |
82 | ssize_t res; |
94 | #if __linux |
83 | #if __linux |
95 | res = sendfile (fd, fd, offset, count); |
84 | res = sendfile (fd, fd, &offset, count); |
96 | #elif __freebsd |
85 | #elif __FreeBSD__ |
97 | res = sendfile (fd, fd, offset, count, 0, &offset, 0); |
86 | res = sendfile (fd, fd, offset, count, 0, &offset, 0); |
98 | #elif __hpux |
87 | #elif __hpux |
99 | res = sendfile (fd, fd, offset, count, 0, 0); |
88 | res = sendfile (fd, fd, offset, count, 0, 0); |
100 | #endif |
89 | #endif |
101 | return 0; |
90 | return 0; |
102 | } |
91 | } |
103 | ],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) |
92 | ])],ac_cv_sendfile=yes,ac_cv_sendfile=no)]) |
104 | test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) |
93 | test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported) |
105 | |
94 | |
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95 | AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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96 | #include <fcntl.h> |
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97 | int main (void) |
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98 | { |
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99 | int fd = 0; |
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100 | off64_t offset = 1; |
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101 | off64_t nbytes = 1; |
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102 | unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER; |
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103 | ssize_t res; |
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104 | res = sync_file_range (fd, offset, nbytes, flags); |
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105 | return 0; |
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106 | } |
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107 | ])],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)]) |
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108 | test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available) |
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109 | |
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110 | AC_CACHE_CHECK(for fallocate, ac_cv_linux_fallocate, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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111 | #include <fcntl.h> |
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112 | int main (void) |
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113 | { |
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114 | int fd = 0; |
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115 | int mode = 0; |
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116 | off_t offset = 1; |
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117 | off_t len = 1; |
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118 | int res; |
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119 | res = fallocate (fd, mode, offset, len); |
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120 | return 0; |
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121 | } |
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122 | ])],ac_cv_linux_fallocate=yes,ac_cv_linux_fallocate=no)]) |
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123 | test $ac_cv_linux_fallocate = yes && AC_DEFINE(HAVE_LINUX_FALLOCATE, 1, fallocate(2) is available) |
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124 | |
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125 | AC_CACHE_CHECK(for sys_syncfs, ac_cv_sys_syncfs, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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126 | #include <unistd.h> |
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127 | #include <sys/syscall.h> |
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128 | int main (void) |
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129 | { |
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130 | int res = syscall (__NR_syncfs, (int)0); |
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131 | } |
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132 | ])],ac_cv_sys_syncfs=yes,ac_cv_sys_syncfs=no)]) |
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133 | test $ac_cv_sys_syncfs = yes && AC_DEFINE(HAVE_SYS_SYNCFS, 1, syscall(__NR_syncfs) is available) |
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134 | |
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135 | AC_CACHE_CHECK(for prctl_set_name, ac_cv_prctl_set_name, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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136 | #include <sys/prctl.h> |
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137 | int main (void) |
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138 | { |
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139 | char *name = "test123"; |
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140 | int res = prctl (PR_SET_NAME, (unsigned long)name, 0, 0, 0); |
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141 | } |
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142 | ])],ac_cv_prctl_set_name=yes,ac_cv_prctl_set_name=no)]) |
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143 | test $ac_cv_prctl_set_name = yes && AC_DEFINE(HAVE_PRCTL_SET_NAME, 1, prctl(PR_SET_NAME) is available) |
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144 | |
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145 | dnl ############################################################################# |
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146 | dnl # these checks exist for the benefit of IO::AIO |
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147 | |
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148 | AC_CACHE_CHECK(for set/getrlimit, ac_cv_rlimits, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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149 | #include <sys/time.h> |
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150 | #include <sys/resource.h> |
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151 | int res; |
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152 | int main (void) |
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153 | { |
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154 | struct rlimit srl; |
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155 | srl.rlim_cur = srl.rlim_max = RLIM_INFINITY; |
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156 | res = getrlimit (RLIMIT_NOFILE, &srl); |
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157 | res = setrlimit (RLIMIT_NOFILE, &srl); |
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158 | return 0; |
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159 | } |
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160 | ]])],ac_cv_rlimits=yes,ac_cv_rlimits=no)]) |
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161 | test $ac_cv_rlimits = yes && AC_DEFINE(HAVE_RLIMITS, 1, setrlimit/getrlimit is available) |
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162 | |
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163 | dnl at least uclibc defines _POSIX_ADVISORY_INFO without *any* of the required |
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164 | dnl functionality actually being present. ugh. |
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165 | AC_CACHE_CHECK(for posix_madvise, ac_cv_posix_madvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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166 | #include <sys/mman.h> |
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167 | int main (void) |
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168 | { |
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169 | int res = posix_madvise ((void *)0, (size_t)0, POSIX_MADV_NORMAL); |
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170 | int a = POSIX_MADV_SEQUENTIAL; |
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171 | int b = POSIX_MADV_RANDOM; |
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172 | int c = POSIX_MADV_WILLNEED; |
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173 | int d = POSIX_MADV_DONTNEED; |
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174 | return 0; |
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175 | } |
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176 | ])],ac_cv_posix_madvise=yes,ac_cv_posix_madvise=no)]) |
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177 | test $ac_cv_posix_madvise = yes && AC_DEFINE(HAVE_POSIX_MADVISE, 1, posix_madvise(2) is available) |
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178 | |
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179 | AC_CACHE_CHECK(for posix_fadvise, ac_cv_posix_fadvise, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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180 | #define _XOPEN_SOURCE 600 |
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181 | #include <fcntl.h> |
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182 | int main (void) |
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183 | { |
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184 | int res = posix_fadvise ((int)0, (off_t)0, (off_t)0, POSIX_FADV_NORMAL); |
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185 | int a = POSIX_FADV_SEQUENTIAL; |
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186 | int b = POSIX_FADV_NOREUSE; |
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187 | int c = POSIX_FADV_RANDOM; |
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188 | int d = POSIX_FADV_WILLNEED; |
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189 | int e = POSIX_FADV_DONTNEED; |
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190 | return 0; |
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191 | } |
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192 | ])],ac_cv_posix_fadvise=yes,ac_cv_posix_fadvise=no)]) |
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193 | test $ac_cv_posix_fadvise = yes && AC_DEFINE(HAVE_POSIX_FADVISE, 1, posix_fadvise(2) is available) |
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194 | |
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195 | dnl lots of linux specifics |
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196 | AC_CHECK_HEADERS([linux/fs.h linux/fiemap.h]) |
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197 | |
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198 | AC_CACHE_CHECK([for splice, vmsplice and tee], ac_cv_linux_splice, [AC_LINK_IFELSE([AC_LANG_SOURCE([ |
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199 | #include <fcntl.h> |
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200 | int main (void) |
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201 | { |
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202 | ssize_t res; |
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203 | 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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204 | res = tee ((int)0, (int)0, (size_t)0, SPLICE_F_NONBLOCK); |
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205 | res = vmsplice ((int)0, (struct iovec *)0, 0, SPLICE_F_NONBLOCK | SPLICE_F_GIFT); |
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206 | return 0; |
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207 | } |
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208 | ])],ac_cv_linux_splice=yes,ac_cv_linux_splice=no)]) |
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209 | test $ac_cv_linux_splice = yes && AC_DEFINE(HAVE_LINUX_SPLICE, 1, splice/vmsplice/tee(2) are available) |
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210 | |
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211 | AC_CACHE_CHECK(for pipe2, ac_cv_pipe2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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212 | #include <fcntl.h> |
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213 | #include <unistd.h> |
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214 | int res; |
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215 | int main (void) |
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216 | { |
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217 | res = pipe2 (0, 0); |
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218 | return 0; |
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219 | } |
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220 | ]])],ac_cv_pipe2=yes,ac_cv_pipe2=no)]) |
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221 | test $ac_cv_pipe2 = yes && AC_DEFINE(HAVE_PIPE2, 1, pipe2(2) is available) |
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222 | |
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223 | AC_CACHE_CHECK(for renameat2, ac_cv_renameat2, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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224 | #include <unistd.h> |
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225 | #include <sys/syscall.h> |
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226 | #include <linux/fs.h> |
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227 | int res; |
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228 | int main (void) |
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229 | { |
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230 | res = syscall (SYS_renameat2, 0, 0, 0, 0, RENAME_EXCHANGE | RENAME_NOREPLACE); |
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231 | return 0; |
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232 | } |
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233 | ]])],ac_cv_renameat2=yes,ac_cv_renameat2=no)]) |
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234 | test $ac_cv_renameat2 = yes && AC_DEFINE(HAVE_RENAMEAT2, 1, renameat2(2) is available) |
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235 | |
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236 | AC_CACHE_CHECK(for copy_file_range, ac_cv_copy_file_range, [AC_LINK_IFELSE([AC_LANG_SOURCE([[ |
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237 | #include <unistd.h> |
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238 | #include <sys/syscall.h> |
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239 | /*#include <linux/copy.h>*/ |
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240 | int res; |
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241 | int main (void) |
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242 | { |
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243 | /*res = syscall (SYS_copy_file_range, 0, 0, 0, 0, 0, COPY_FR_REFLINK | COPY_FR_DEDUP | COPY_FR_COPY);*/ |
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244 | res = syscall (SYS_copy_file_range, 0, 0, 0, 0, 0, 0); |
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245 | return 0; |
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246 | } |
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247 | ]])],ac_cv_copy_file_range=yes,ac_cv_copy_file_range=no)]) |
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248 | test $ac_cv_copy_file_range = yes && AC_DEFINE(HAVE_COPY_FILE_RANGE, 1, copy_file_range(2) is available) |
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249 | |