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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.
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 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 5a8e63b2 2004-02-29 devnull _wait(int nohang)

 6 b2cfc4e2 2003-09-30 devnull {

 7 b2cfc4e2 2003-09-30 devnull 	int n, l;

 8 b2cfc4e2 2003-09-30 devnull 	char buf[512], *fld[5];

 9 b2cfc4e2 2003-09-30 devnull 	Waitmsg *w;

10 b2cfc4e2 2003-09-30 devnull 

11 5a8e63b2 2004-02-29 devnull 	n = (nohang ? awaitnohang : await)(buf, sizeof buf-1);

12 5a8e63b2 2004-02-29 devnull 	if(n <= 0)

13 b2cfc4e2 2003-09-30 devnull 		return nil;

14 b2cfc4e2 2003-09-30 devnull 	buf[n] = '\0';

15 b2cfc4e2 2003-09-30 devnull 	if(tokenize(buf, fld, nelem(fld)) != nelem(fld)){

16 b2cfc4e2 2003-09-30 devnull 		werrstr("couldn't parse wait message");

17 b2cfc4e2 2003-09-30 devnull 		return nil;

18 b2cfc4e2 2003-09-30 devnull 	}

19 b2cfc4e2 2003-09-30 devnull 	l = strlen(fld[4])+1;

20 b2cfc4e2 2003-09-30 devnull 	w = malloc(sizeof(Waitmsg)+l);

21 b2cfc4e2 2003-09-30 devnull 	if(w == nil)

22 b2cfc4e2 2003-09-30 devnull 		return nil;

23 b2cfc4e2 2003-09-30 devnull 	w->pid = atoi(fld[0]);

24 b2cfc4e2 2003-09-30 devnull 	w->time[0] = atoi(fld[1]);

25 b2cfc4e2 2003-09-30 devnull 	w->time[1] = atoi(fld[2]);

26 b2cfc4e2 2003-09-30 devnull 	w->time[2] = atoi(fld[3]);

27 b2cfc4e2 2003-09-30 devnull 	w->msg = (char*)&w[1];

28 b2cfc4e2 2003-09-30 devnull 	memmove(w->msg, fld[4], l);

29 b2cfc4e2 2003-09-30 devnull 	return w;

30 b2cfc4e2 2003-09-30 devnull }

31 b2cfc4e2 2003-09-30 devnull 

32 5a8e63b2 2004-02-29 devnull Waitmsg*

33 5a8e63b2 2004-02-29 devnull wait(void)

34 5a8e63b2 2004-02-29 devnull {

35 5a8e63b2 2004-02-29 devnull 	return _wait(0);

36 5a8e63b2 2004-02-29 devnull }

37 5a8e63b2 2004-02-29 devnull 

38 5a8e63b2 2004-02-29 devnull Waitmsg*

39 5a8e63b2 2004-02-29 devnull waitnohang(void)

40 5a8e63b2 2004-02-29 devnull {

41 5a8e63b2 2004-02-29 devnull 	return _wait(1);

42 5a8e63b2 2004-02-29 devnull }

43 5a8e63b2 2004-02-29 devnull