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Diffstat (limited to 'mcon/U/d_usleep.U')
| -rw-r--r-- | mcon/U/d_usleep.U | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/mcon/U/d_usleep.U b/mcon/U/d_usleep.U new file mode 100644 index 0000000..1c47e24 --- /dev/null +++ b/mcon/U/d_usleep.U @@ -0,0 +1,44 @@ +?RCS: $Id: d_usleep.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_usleep.U,v $ +?RCS: Revision 3.0 1993/08/18 12:07:53 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:d_usleep: Trylink cat i_unistd +?MAKE: -pick add $@ %< +?S:d_usleep: +?S: This variable conditionally defines HAS_USLEEP if usleep() is +?S: available to do high granularity sleeps. +?S:. +?C:HAS_USLEEP (USLEEP): +?C: This symbol, if defined, indicates that the usleep routine is +?C: available to let the process sleep on a sub-second accuracy. +?C:. +?H:#$d_usleep HAS_USLEEP /**/ +?H:. +?LINT:set d_usleep +: see if usleep exists +$cat >try.c <<EOC +#$i_unistd I_UNISTD +#ifdef I_UNISTD +#include <unistd.h> +#endif +int main(void) +{ + static unsigned ret; + ret |= usleep(1); + return ret ? 0 : 1; +} +EOC +cyn=usleep +set d_usleep +eval $trylink + |