4 * This file is part of BeRTOS.
6 * Bertos is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
23 * this file and link it with other files to produce an executable, this
24 * file does not by itself cause the resulting executable to be covered by
25 * the GNU General Public License. This exception does not however
26 * invalidate any other reasons why the executable file might be covered by
27 * the GNU General Public License.
29 * Copyright 2008 Bernie Innocenti <bernie@codewiz.org>
32 * \brief Process scheduler (public interface).
34 * \version $Id: proc.h 1646 2008-08-17 13:49:48Z bernie $
35 * \author Bernie Innocenti <bernie@codewiz.org>
37 * Still in development, disable nightly test for now
43 #include <cfg/module.h>
44 #include <kern/proc_p.h>
45 #include <kern/proc.h>
47 #include "cfg/cfg_proc.h"
49 #include <unistd.h> // FIXME: move POSIX stuff to irq_posix.h
55 static void (*irq_handlers[100])(void);
58 void irq_entry(int signum)
60 #if CONFIG_KERN_PREEMPT
61 Process * const old_process = CurrentProcess;
64 irq_handlers[signum]();
66 #if CONFIG_KERN_PREEMPT
67 ASSERT2(CurrentProcess, "no idle proc?");
69 if (old_process != CurrentProcess)
73 TRACEMSG("switching from %p:%s to %p:%s",
74 old_process, old_process ? old_process->monitor.name : "---",
75 CurrentProcess, proc_currentName());
78 swapcontext(&old_process->context, &CurrentProcess->context);
80 setcontext(&CurrentProcess->context);
84 TRACEMSG("resuming %p:%s", CurrentProcess, CurrentProcess->monitor.name);
85 #endif // CONFIG_KERN_PREEMPT
88 void irq_register(int irq, void (*callback)(void))
90 irq_handlers[irq] = callback;
97 act.sa_handler = irq_entry;
98 sigemptyset(&act.sa_mask);
99 //sigaddset(&act.sa_mask, irq);
100 act.sa_flags = SA_RESTART; // | SA_SIGINFO;
102 sigaction(SIGUSR1, &act, NULL);
103 sigaction(SIGALRM, &act, NULL);