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/* fclose( FILE * )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#include <stdio.h>
#include <stdlib.h>
#ifndef REGTEST
#include "pdclib/_PDCLIB_glue.h"
#ifndef __STDC_NO_THREADS__
#include <threads.h>
extern mtx_t _PDCLIB_filelist_mtx;
#endif
extern struct _PDCLIB_file_t * _PDCLIB_filelist;
int fclose( struct _PDCLIB_file_t * stream )
{
_PDCLIB_LOCK( _PDCLIB_filelist_mtx );
_PDCLIB_LOCK( stream->mtx );
/* Flush buffer */
if ( stream->status & _PDCLIB_FWRITE )
{
if ( _PDCLIB_flushbuffer( stream ) == EOF )
{
/* Flush failed, errno already set */
_PDCLIB_UNLOCK( stream->mtx );
_PDCLIB_UNLOCK( _PDCLIB_filelist_mtx );
return EOF;
}
}
/* Close handle */
_PDCLIB_close( stream->handle );
/* Remove stream from list */
if ( _PDCLIB_getstream( stream ) )
{
_PDCLIB_UNLOCK( stream->mtx );
_PDCLIB_UNLOCK( _PDCLIB_filelist_mtx );
return EOF;
}
/* Delete tmpfile() */
if ( stream->status & _PDCLIB_DELONCLOSE )
{
_PDCLIB_remove( stream->filename );
}
/* Free buffer */
if ( stream->status & _PDCLIB_FREEBUFFER )
{
free( stream->buffer );
}
/* Free filename (standard streams do not have one, but free( NULL )
is a valid no-op)
*/
free( stream->filename );
_PDCLIB_UNLOCK( stream->mtx );
#ifndef __STDC_NO_THREADS__
mtx_destroy( &stream->mtx );
#endif
/* Free stream */
if ( stream != stdin && stream != stdout && stream != stderr )
{
free( stream );
}
_PDCLIB_UNLOCK( _PDCLIB_filelist_mtx );
return 0;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
int main( void )
{
#ifndef REGTEST
struct _PDCLIB_file_t * file1;
struct _PDCLIB_file_t * file2;
remove( testfile1 );
remove( testfile2 );
TESTCASE( _PDCLIB_filelist == stdin );
TESTCASE( ( file1 = fopen( testfile1, "w" ) ) != NULL );
TESTCASE( _PDCLIB_filelist == file1 );
TESTCASE( ( file2 = fopen( testfile2, "w" ) ) != NULL );
TESTCASE( _PDCLIB_filelist == file2 );
TESTCASE( fclose( file2 ) == 0 );
TESTCASE( _PDCLIB_filelist == file1 );
TESTCASE( ( file2 = fopen( testfile2, "w" ) ) != NULL );
TESTCASE( _PDCLIB_filelist == file2 );
TESTCASE( fclose( file1 ) == 0 );
TESTCASE( _PDCLIB_filelist == file2 );
TESTCASE( fclose( file2 ) == 0 );
TESTCASE( _PDCLIB_filelist == stdin );
TESTCASE( remove( testfile1 ) == 0 );
TESTCASE( remove( testfile2 ) == 0 );
#else
puts( " NOTEST fclose() test driver is PDCLib-specific." );
#endif
return TEST_RESULTS;
}
#endif
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