summaryrefslogtreecommitdiff
path: root/mcon/U/d_semop.U
diff options
context:
space:
mode:
authorManoj Srivastava <srivasta@debian.org>2008-05-30 12:42:47 -0700
committerManoj Srivastava <srivasta@debian.org>2008-05-30 12:42:47 -0700
commitceb3507a8fca872770b3dcd7e5c5b36179ab95b0 (patch)
treeb46b4e25cfff5f4c13a330b8428ceed343e3796c /mcon/U/d_semop.U
Import dist_3.5-236.orig.tar.gz
[dgit import orig dist_3.5-236.orig.tar.gz]
Diffstat (limited to 'mcon/U/d_semop.U')
-rw-r--r--mcon/U/d_semop.U84
1 files changed, 84 insertions, 0 deletions
diff --git a/mcon/U/d_semop.U b/mcon/U/d_semop.U
new file mode 100644
index 0000000..968bebd
--- /dev/null
+++ b/mcon/U/d_semop.U
@@ -0,0 +1,84 @@
+?RCS: $Id$
+?RCS:
+?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi
+?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:
+?RCS: $Log: d_semop.U,v $
+?RCS: Revision 3.0 1993/08/18 12:07:05 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?RCS:
+?MAKE:d_semop d_semtimedop: Trylink cat
+?MAKE: -pick add $@ %<
+?S:d_semop:
+?S: This variable conditionally defines the HAS_SEMOP symbol, which
+?S: indicates to the C program that the semop() routine is available.
+?S:.
+?S:d_semtimedop:
+?S: This variable conditionally defines the HAS_SEMTIMEDOP symbol, which
+?S: indicates to the C program that the semtimedop() routine is available.
+?S:.
+?C:HAS_SEMOP:
+?C: This symbol, if defined, indicates that the semop() routine is
+?C: available to execute semaphore operations.
+?C:.
+?C:HAS_SEMTIMEDOP:
+?C: This symbol, if defined, indicates that the semtimedop() routine is
+?C: available to execute semaphore operations with a timeout.
+?C:.
+?H:#$d_semop HAS_SEMOP /**/
+?H:#$d_semtimedop HAS_SEMTIMEDOP /**/
+?H:.
+?LINT:set d_semop d_semtimedop
+: see if semop exists
+$cat >try.c <<EOC
+#include <sys/ipc.h>
+#include <sys/sem.h>
+int main(void)
+{
+ static int ret, id;
+ static size_t n;
+ static struct sembuf buf;
+
+ buf.sem_num |= 1;
+ buf.sem_op |= 1;
+ buf.sem_flg |= SEM_UNDO;
+ buf.sem_flg |= IPC_NOWAIT;
+ ret |= semop(id, &buf, n);
+ return ret ? 0 : 1;
+}
+EOC
+cyn=semop
+set d_semop
+eval $trylink
+
+@if d_semtimedop || HAS_SEMTIMEDOP
+: see if semtimedop exists
+$cat >try.c <<EOC
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+int main(void)
+{
+ static int ret, id;
+ static size_t n;
+ static struct sembuf buf;
+
+
+ buf.sem_num |= 1;
+ buf.sem_op |= 1;
+ buf.sem_flg |= SEM_UNDO;
+ buf.sem_flg |= IPC_NOWAIT;
+ ret |= semtimedop(id, &buf, n, (struct timespec *) 0);
+ return ret ? 0 : 1;
+}
+EOC
+cyn=semtimedop
+set d_semtimedop
+eval $trylink
+
+@end