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107 lines
2.7 KiB
107 lines
2.7 KiB
AC_SEARCH_LIBS(
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pthread_create,
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[pthread pthreads pthreadVC2],
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,
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[AC_MSG_ERROR(pthread functions not found)]
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)
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AC_CACHE_CHECK(for futimes, ac_cv_futimes, [AC_LINK_IFELSE([[
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#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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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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AC_CACHE_CHECK(for fdatasync, ac_cv_fdatasync, [AC_LINK_IFELSE([
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#include <unistd.h>
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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)])
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test $ac_cv_fdatasync = yes && AC_DEFINE(HAVE_FDATASYNC, 1, fdatasync(2) is available)
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AC_CACHE_CHECK(for pread and pwrite, ac_cv_preadwrite, [AC_LINK_IFELSE([
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#include <unistd.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 = 1;
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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;
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}
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],ac_cv_preadwrite=yes,ac_cv_preadwrite=no)])
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test $ac_cv_preadwrite = yes && AC_DEFINE(HAVE_PREADWRITE, 1, pread(2) and pwrite(2) are available)
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AC_CACHE_CHECK(for sendfile, ac_cv_sendfile, [AC_LINK_IFELSE([
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# include <sys/types.h>
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#if __linux
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# include <sys/sendfile.h>
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#elif __freebsd
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# include <sys/socket.h>
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# include <sys/uio.h>
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#elif __hpux
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# include <sys/socket.h>
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#else
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# error unsupported architecture
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#endif
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int main(void)
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{
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int fd = 0;
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off_t offset = 1;
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size_t count = 2;
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ssize_t res;
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#if __linux
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res = sendfile (fd, fd, offset, count);
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#elif __freebsd
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res = sendfile (fd, fd, offset, count, 0, &offset, 0);
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#elif __hpux
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res = sendfile (fd, fd, offset, count, 0, 0);
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#endif
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return 0;
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}
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],ac_cv_sendfile=yes,ac_cv_sendfile=no)])
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test $ac_cv_sendfile = yes && AC_DEFINE(HAVE_SENDFILE, 1, sendfile(2) is available and supported)
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AC_CACHE_CHECK(for sync_file_range, ac_cv_sync_file_range, [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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off64_t offset = 1;
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off64_t nbytes = 1;
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unsigned int flags = SYNC_FILE_RANGE_WAIT_BEFORE|SYNC_FILE_RANGE_WRITE|SYNC_FILE_RANGE_WAIT_AFTER;
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ssize_t res;
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res = sync_file_range (fd, offset, nbytes, flags);
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return 0;
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}
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],ac_cv_sync_file_range=yes,ac_cv_sync_file_range=no)])
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test $ac_cv_sync_file_range = yes && AC_DEFINE(HAVE_SYNC_FILE_RANGE, 1, sync_file_range(2) is available)
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