diff options
Diffstat (limited to 'libc/manual/examples/sigusr.c')
| -rw-r--r-- | libc/manual/examples/sigusr.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/libc/manual/examples/sigusr.c b/libc/manual/examples/sigusr.c index 11e3ceee8..5bfbc8071 100644 --- a/libc/manual/examples/sigusr.c +++ b/libc/manual/examples/sigusr.c @@ -1,3 +1,20 @@ +/* Using kill for Communication + Copyright (C) 1991-2012 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 2 + of the License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, if not, see <http://www.gnu.org/licenses/>. +*/ + /*@group*/ #include <signal.h> #include <stdio.h> @@ -8,14 +25,14 @@ /* When a @code{SIGUSR1} signal arrives, set this variable. */ volatile sig_atomic_t usr_interrupt = 0; -void +void synch_signal (int sig) { usr_interrupt = 1; } /* The child process executes this function. */ -void +void child_function (void) { /* Perform initialization. */ |