o5r/plan9port
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No more malloc or lock inside signal handlers.

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This commit is contained in:
rsc 2004-04-21 04:48:25 +00:00
parent ac0e2db600
commit 175b8a534a
6 changed files with 78 additions and 55 deletions
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5
src/lib9/notify.c
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@ -49,7 +49,7 @@ notifysigf(int sig)
char tmp[64];
Uproc *up;
up = _p9uproc();
up = _p9uproc(1);
v = p9setjmp(up->notejb);
if(v == 0 && notifyf)
(*notifyf)(nil, _p9sigstr(sig, tmp));
@ -68,6 +68,7 @@ notify(void (*f)(void*, char*))
int i;
struct sigaction sa;
_p9uproc(0);
memset(&sa, 0, sizeof sa);
if(f == 0)
sa.sa_handler = SIG_DFL;
@ -90,7 +91,7 @@ noted(int v)
{
Uproc *up;
up = _p9uproc();
up = _p9uproc(1);
p9longjmp(up->notejb, v==NCONT ? 2 : 1);
abort();
return 0;