Hello!
On Thu, Mar 16, 2000 at 04:48:02PM -0700, Alastair Reid wrote:
> More through testing of my quick fix (ie trying bigger examples)
> revealed that my "trap '' 26" hack failed about 1% of the time.
> This being too often (approximately once per program run!)
> I hacked up fptools/ghc/lib/std/cbits/system.c by adding this code
> case 0:
> /* the child */
> #ifdef ADR_HACK
> block_vtalrm_signal(); /* from rts/ITimer.c */
> #endif
> execl("/bin/sh", "sh", "-c", cmd, NULL);
> _exit(127);
> }
Better turn off the itimers copletely in the child:
struct timeval tv_null = { 0, 0 };
struct itimerval itv;
itv.it_interval = tv_null;
itv.it_value = tv_null;
setitimer(ITIMER_REAL, &itv, NULL);
setitimer(ITIMER_VIRTUAL, &itv, NULL);
setitimer(ITIMER_PROF, &itv, NULL);
> [...]
Regards, Hannah.
