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Diffstat (limited to 'mcon/U/d_msgrcv.U')
| -rw-r--r-- | mcon/U/d_msgrcv.U | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/mcon/U/d_msgrcv.U b/mcon/U/d_msgrcv.U new file mode 100644 index 0000000..436ce52 --- /dev/null +++ b/mcon/U/d_msgrcv.U @@ -0,0 +1,47 @@ +?RCS: $Id: d_msgrcv.U 167 2013-05-08 17:58:00Z rmanfredi $ +?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_msgrcv.U,v $ +?RCS: Revision 3.0 1993/08/18 12:06:40 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:d_msgrcv: Trylink cat +?MAKE: -pick add $@ %< +?S:d_msgrcv: +?S: This variable conditionally defines the HAS_MSGRCV symbol, which +?S: indicates to the C program that the msgrcv() routine is available. +?S:. +?C:HAS_MSGRCV: +?C: This symbol, if defined, indicates that the msgrcv() routine is +?C: available to extract a message from the message queue. +?C:. +?H:#$d_msgrcv HAS_MSGRCV /**/ +?H:. +?LINT:set d_msgrcv +: see if msgrcv exists +$cat >try.c <<EOC +#include <sys/msg.h> +int main(void) +{ + static ssize_t ret; + static int id, flags; + static size_t size; + static long type; + static char buf[16]; + flags |= IPC_CREAT; + flags |= IPC_EXCL; + ret |= msgrcv(id, &buf, size, type, flags); + return ret ? 0 : 1; +} +EOC +cyn=msgrcv +set d_msgrcv +eval $trylink + |