plan9port/src/lib9/wait.c
rsc 5a8e63b2f0 Fighting the good fight.
Move libfmt, libutf into subdirectories of lib9.

Add poll-based socket i/o to libthread, so that we can
avoid using multiple procs when possible, thus removing
dependence on crappy pthreads implementations.

Convert samterm, acme to the single-proc libthread.

Bring libcomplete, acme up-to-date w.r.t. Plan 9 distribution.
2004-02-29 22:10:26 +00:00

43 lines
678 B
C

#include <u.h>
#include <libc.h>
static Waitmsg*
_wait(int nohang)
{
int n, l;
char buf[512], *fld[5];
Waitmsg *w;
n = (nohang ? awaitnohang : await)(buf, sizeof buf-1);
if(n <= 0)
return nil;
buf[n] = '\0';
if(tokenize(buf, fld, nelem(fld)) != nelem(fld)){
werrstr("couldn't parse wait message");
return nil;
}
l = strlen(fld[4])+1;
w = malloc(sizeof(Waitmsg)+l);
if(w == nil)
return nil;
w->pid = atoi(fld[0]);
w->time[0] = atoi(fld[1]);
w->time[1] = atoi(fld[2]);
w->time[2] = atoi(fld[3]);
w->msg = (char*)&w[1];
memmove(w->msg, fld[4], l);
return w;
}
Waitmsg*
wait(void)
{
return _wait(0);
}
Waitmsg*
waitnohang(void)
{
return _wait(1);
}