1 fd04aace 2003-11-23 devnull #include <u.h>
 2 fd04aace 2003-11-23 devnull #include <libc.h>
 3 b2cfc4e2 2003-09-30 devnull 
 4 5a8e63b2 2004-02-29 devnull static Waitmsg*
 5 03417610 2004-12-27 devnull _wait(int n, char *buf)
 6 b2cfc4e2 2003-09-30 devnull {
 7 03417610 2004-12-27 devnull 	int l;
 8 03417610 2004-12-27 devnull 	char *fld[5];
 9 b2cfc4e2 2003-09-30 devnull 	Waitmsg *w;
10 b2cfc4e2 2003-09-30 devnull 
11 5a8e63b2 2004-02-29 devnull 	if(n <= 0)
12 b2cfc4e2 2003-09-30 devnull 		return nil;
13 b2cfc4e2 2003-09-30 devnull 	buf[n] = '\0';
14 b2cfc4e2 2003-09-30 devnull 	if(tokenize(buf, fld, nelem(fld)) != nelem(fld)){
15 b2cfc4e2 2003-09-30 devnull 		werrstr("couldn't parse wait message");
16 b2cfc4e2 2003-09-30 devnull 		return nil;
17 b2cfc4e2 2003-09-30 devnull 	}
18 b2cfc4e2 2003-09-30 devnull 	l = strlen(fld[4])+1;
19 b2cfc4e2 2003-09-30 devnull 	w = malloc(sizeof(Waitmsg)+l);
20 b2cfc4e2 2003-09-30 devnull 	if(w == nil)
21 b2cfc4e2 2003-09-30 devnull 		return nil;
22 b2cfc4e2 2003-09-30 devnull 	w->pid = atoi(fld[0]);
23 b2cfc4e2 2003-09-30 devnull 	w->time[0] = atoi(fld[1]);
24 b2cfc4e2 2003-09-30 devnull 	w->time[1] = atoi(fld[2]);
25 b2cfc4e2 2003-09-30 devnull 	w->time[2] = atoi(fld[3]);
26 b2cfc4e2 2003-09-30 devnull 	w->msg = (char*)&w[1];
27 b2cfc4e2 2003-09-30 devnull 	memmove(w->msg, fld[4], l);
28 b2cfc4e2 2003-09-30 devnull 	return w;
29 b2cfc4e2 2003-09-30 devnull }
30 b2cfc4e2 2003-09-30 devnull 
31 5a8e63b2 2004-02-29 devnull Waitmsg*
32 5a8e63b2 2004-02-29 devnull wait(void)
33 5a8e63b2 2004-02-29 devnull {
34 03417610 2004-12-27 devnull 	char buf[256];
35 03417610 2004-12-27 devnull 
36 03417610 2004-12-27 devnull 	return _wait(await(buf, sizeof buf-1), buf);
37 5a8e63b2 2004-02-29 devnull }
38 5a8e63b2 2004-02-29 devnull 
39 5a8e63b2 2004-02-29 devnull Waitmsg*
40 5a8e63b2 2004-02-29 devnull waitnohang(void)
41 5a8e63b2 2004-02-29 devnull {
42 03417610 2004-12-27 devnull 	char buf[256];
43 03417610 2004-12-27 devnull 
44 03417610 2004-12-27 devnull 	return _wait(awaitnohang(buf, sizeof buf-1), buf);
45 5a8e63b2 2004-02-29 devnull }
46 5a8e63b2 2004-02-29 devnull 
47 03417610 2004-12-27 devnull Waitmsg*
48 03417610 2004-12-27 devnull waitfor(int pid)
49 03417610 2004-12-27 devnull {
50 03417610 2004-12-27 devnull 	char buf[256];
51 03417610 2004-12-27 devnull 
52 03417610 2004-12-27 devnull 	return _wait(awaitfor(pid, buf, sizeof buf-1), buf);
53 03417610 2004-12-27 devnull }