platform_bionic/libc/bionic/__libc_current_sigrtmin.cpp
Elliott Hughes 7ba2bed0b2 Make unified headers' SIGRTMIN/SIGRTMAX usable before API 21.
Bug: https://github.com/android-ndk/ndk/issues/352
Test: built new NDK test
Change-Id: Iacebe574bbf693701949e038005a40ba6520d592
2017-04-26 14:34:36 -07:00

40 lines
1.7 KiB
C++

/*
* Copyright (C) 2014 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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
* COPYRIGHT OWNER OR CONTRIBUTORS 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.
*/
#include <signal.h>
// POSIX timers use __SIGRTMIN + 0.
// libbacktrace uses __SIGRTMIN + 1.
// libcore uses __SIGRTMIN + 2.
// __SIGRTMIN + 3 is reserved for triggering native stack dumps.
int __libc_current_sigrtmin(void) {
// If you change this, also change __ndk_legacy___libc_current_sigrtmin
// in <android/legacy_signal_inlines.h> to match.
return __SIGRTMIN + 4;
}