jehanne/sys/src/lib/thread/chanprint.c

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/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
#include <u.h>
#include <libc.h>
#include <thread.h>
int
chanprint(Channel *c, char *fmt, ...)
{
va_list arg;
char *p;
int n;
va_start(arg, fmt);
p = jehanne_vsmprint(fmt, arg);
va_end(arg);
if(p == nil)
jehanne_sysfatal("vsmprint failed: %r");
n = sendp(c, p);
yield(); /* let recipient handle message immediately */
return n;
}