X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=kern%2Fsignal.c;h=0e9770943b641819999ccd30352cdad2c873719e;hb=3d3ba5cae20af3f5d1a75d7a3d727a2199160137;hp=841ac6eb9d37c0a00135aecfb2efa39b2e2fe125;hpb=7f5d3d3799955d4ef380bb9199a8e32c6dc72ae1;p=bertos.git

diff --git a/kern/signal.c b/kern/signal.c
old mode 100755
new mode 100644
index 841ac6eb..0e977094
--- a/kern/signal.c
+++ b/kern/signal.c
@@ -1,9 +1,34 @@
-/*!
+/**
  * \file
  * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
  * Copyright 2004 Develer S.r.l. (http://www.develer.com/)
  * Copyright 1999, 2000, 2001 Bernardo Innocenti <bernie@develer.com>
- * This file is part of DevLib - See README.devlib for information.
+ *
  * -->
  *
  * \brief IPC signals implementation.
@@ -66,6 +91,9 @@
 
 /*#*
  *#* $Log$
+ *#* Revision 1.14  2006/07/19 12:56:27  bernie
+ *#* Convert to new Doxygen style.
+ *#*
  *#* Revision 1.13  2006/02/24 01:17:05  bernie
  *#* Update for new emulator.
  *#*
@@ -111,15 +139,17 @@
 
 #include "signal.h"
 
+#include <cfg/debug.h>
+#include <drv/timer.h>
 #include <kern/proc.h>
 #include <kern/proc_p.h>
-#include <cfg/debug.h>
+ 
 
 #if CONFIG_KERN_SIGNALS
 
-/*!
+/**
  * Check if any of the signals in \a sigs has occurred and clear them.
- * Return the signals that have occurred.
+ * \return the signals that have occurred.
  */
 sigmask_t sig_check(sigmask_t sigs)
 {
@@ -135,9 +165,9 @@ sigmask_t sig_check(sigmask_t sigs)
 }
 
 
-/*!
+/**
  * Sleep until any of the signals in \a sigs occurs.
- * Return the signal(s) that have awaked the process.
+ * \return the signal(s) that have awaked the process.
  */
 sigmask_t sig_wait(sigmask_t sigs)
 {
@@ -165,8 +195,26 @@ sigmask_t sig_wait(sigmask_t sigs)
 	return result;
 }
 
+/**
+ * Sleep until any of the signals in \a sigs or \a timeout ticks elapse.
+ * If the timeout elapse a SIG_TIMEOUT is added to the received signal(s).
+ * \return the signal(s) that have awaked the process.
+ * \note Caller must check return value to check which signal has awaked the process.
+ */
+sigmask_t sig_waitTimeout(sigmask_t sigs, ticks_t timeout)
+{
+	Timer t;
+
+	ASSERT(!sig_check(SIG_TIMEOUT));
+	ASSERT(!(sigs & SIG_TIMEOUT));
+	timer_set_event_signal(&t, proc_current(), SIG_TIMEOUT);
+	timer_setDelay(&t, timeout);
+	timer_add(&t);
+	return sig_wait(SIG_TIMEOUT | sigs);
+}
+
 
-/*!
+/**
  * Send the signals \a sigs to the process \a proc.
  * The process will be awaken if it was waiting for any of them.
  *