8baa929d5d
- eventfd.cpp and eventfd.s will output to the same file when building libc.a out/target/product/*/obj/STATIC_LIBRARIES/libc_intermediates/WHOLE/libc_common_objs/eventfd.o - And then `eventfd` will undefined when statically linked to libc. Also add a unit test. Change-Id: Ib310ade3256712ca617a90539e8eb07459c98505
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/*
|
|
* Copyright (C) 2008 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.
|
|
*/
|
|
#ifndef _SYS_EVENTFD_H
|
|
#define _SYS_EVENTFD_H
|
|
|
|
#include <sys/cdefs.h>
|
|
#include <fcntl.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
#define EFD_CLOEXEC O_CLOEXEC
|
|
#define EFD_NONBLOCK O_NONBLOCK
|
|
|
|
/* type of event counter */
|
|
typedef uint64_t eventfd_t;
|
|
|
|
extern int eventfd(unsigned int initial_value, int flags);
|
|
|
|
extern int eventfd_read(int fd, eventfd_t* value);
|
|
extern int eventfd_write(int fd, eventfd_t value);
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* _SYS_EVENTFD_H */
|