97 lines
2.7 KiB
C++
97 lines
2.7 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 <stdio_ext.h>
|
|
|
|
#include <stdio.h>
|
|
#include "local.h"
|
|
|
|
#define FSETLOCKING_QUERY 0
|
|
#define FSETLOCKING_INTERNAL 1
|
|
#define FSETLOCKING_BYCALLER 2
|
|
|
|
size_t __fbufsize(FILE* fp) {
|
|
return fp->_bf._size;
|
|
}
|
|
|
|
/* For a _SRW stream, we don't know whether we last read or wrote.
|
|
int __freading(FILE* fp) {
|
|
return (fp->_flags & _SRD) != 0 || ...;
|
|
}
|
|
*/
|
|
|
|
/* For a _SRW stream, we don't know whether we last read or wrote.
|
|
int __fwriting(FILE*) {
|
|
return (fp->_flags & _SWR) != 0 || ...;
|
|
}
|
|
*/
|
|
|
|
int __freadable(FILE* fp) {
|
|
return (fp->_flags & (__SRD|__SRW)) != 0;
|
|
}
|
|
|
|
int __fwritable(FILE* fp) {
|
|
return (fp->_flags & (__SWR|__SRW)) != 0;
|
|
}
|
|
|
|
int __flbf(FILE* fp) {
|
|
return (fp->_flags & __SLBF) != 0;
|
|
}
|
|
|
|
void __fpurge(FILE* fp) {
|
|
fpurge(fp);
|
|
}
|
|
|
|
size_t __fpending(FILE* fp) {
|
|
return fp->_p - fp->_bf._base;
|
|
}
|
|
|
|
void _flushlbf() {
|
|
// If we flush all streams, we know we've flushed all the line-buffered streams.
|
|
fflush(NULL);
|
|
}
|
|
|
|
int __fsetlocking(FILE*, int) {
|
|
// We don't currently have an implementation that would obey this,
|
|
// so make setting the state a no-op and always return "we handle locking for you".
|
|
// http://b/17154740 suggests ways we could fix this.
|
|
return FSETLOCKING_INTERNAL;
|
|
}
|
|
|
|
void clearerr_unlocked(FILE* fp) {
|
|
return __sclearerr(fp);
|
|
}
|
|
|
|
int feof_unlocked(FILE* fp) {
|
|
return __sfeof(fp);
|
|
}
|
|
|
|
int ferror_unlocked(FILE* fp) {
|
|
return __sferror(fp);
|
|
}
|