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Diffstat (limited to 'mcon/U/d_posix_fadvise.U')
| -rw-r--r-- | mcon/U/d_posix_fadvise.U | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/mcon/U/d_posix_fadvise.U b/mcon/U/d_posix_fadvise.U new file mode 100644 index 0000000..eecf982 --- /dev/null +++ b/mcon/U/d_posix_fadvise.U @@ -0,0 +1,47 @@ +?RCS: $Id$ +?RCS: +?RCS: Copyright (c) 2006, Christian Biere +?RCS: +?RCS: You may redistribute only under the terms of the Artistic License, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic License; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?MAKE:d_posix_fadvise: Trylink cat +?MAKE: -pick add $@ %< +?S:d_posix_fadvise: +?S: This variable conditionally defines the HAS_POSIX_FADVISE symbol, which +?S: indicates to the C program that posix_fadvise() support is available. +?S:. +?C:HAS_POSIX_FADVISE: +?C: This symbol is defined when posix_fadvise() can be used. +?C:. +?H:#$d_posix_fadvise HAS_POSIX_FADVISE +?H:. +?LINT: set d_posix_fadvise +: can we use posix_fadvise? +$cat >try.c <<'EOC' +#include <sys/types.h> +#include <fcntl.h> +int main(void) +{ + static int ret, fd; + static off_t offset, size; + static int hint; + + hint = POSIX_FADV_NORMAL + | POSIX_FADV_RANDOM + | POSIX_FADV_SEQUENTIAL + | POSIX_FADV_WILLNEED + | POSIX_FADV_DONTNEED + | POSIX_FADV_NOREUSE; + + ret |= posix_fadvise(fd, offset, size, hint); + return ret ? 0 : 1; +} +EOC +cyn=posix_fadvise +set d_posix_fadvise +eval $trylink + |