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/*
* Copyright (c) 2005 David Xu <davidxu@freebsd.org>
* Copyright (C) 2003 Daniel M. Eischen <deischen@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/types.h>
#include <sys/signalvar.h>
#include <pthread.h>
#include "thr_private.h"
/*#define DEBUG_THREAD_KERN */
#ifdef DEBUG_THREAD_KERN
#define DBG_MSG stdout_debug
#else
#define DBG_MSG(x...)
#endif
/*
* This is called when the first thread (other than the initial
* thread) is created.
*/
int
_thr_setthreaded(int threaded)
{
if (((threaded == 0) ^ (__isthreaded == 0)) == 0)
return (0);
__isthreaded = threaded;
#if 0
if (threaded != 0) {
_thr_rtld_init();
} else {
_thr_rtld_fini();
}
#endif
return (0);
}
void
_thr_signal_block(struct pthread *curthread)
{
sigset_t set;
if (curthread->sigblock > 0) {
curthread->sigblock++;
return;
}
SIGFILLSET(set);
SIGDELSET(set, SIGBUS);
SIGDELSET(set, SIGILL);
SIGDELSET(set, SIGFPE);
SIGDELSET(set, SIGSEGV);
SIGDELSET(set, SIGTRAP);
__sys_sigprocmask(SIG_BLOCK, &set, &curthread->sigmask);
curthread->sigblock++;
}
void
_thr_signal_unblock(struct pthread *curthread)
{
if (--curthread->sigblock == 0)
__sys_sigprocmask(SIG_SETMASK, &curthread->sigmask, NULL);
}
int
_thr_send_sig(struct pthread *thread, int sig)
{
return thr_kill(thread->tid, sig);
}
void
_thr_assert_lock_level()
{
PANIC("locklevel <= 0");
}
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