trampoline/lib/lib9/wait.c

54 lines
812 B
C

#include <u.h>
#include <libc.h>
static Waitmsg*
_wait(int n, char *buf)
{
int l;
char *fld[5];
Waitmsg *w;
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)
{
char buf[256];
return _wait(await(buf, sizeof buf-1), buf);
}
Waitmsg*
waitnohang(void)
{
char buf[256];
return _wait(awaitnohang(buf, sizeof buf-1), buf);
}
Waitmsg*
waitfor(int pid)
{
char buf[256];
return _wait(awaitfor(pid, buf, sizeof buf-1), buf);
}