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/* _PDCLIB_init_file_t( _PDCLIB_file_t * )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#ifndef REGTEST
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <threads.h>
struct _PDCLIB_file_t * _PDCLIB_init_file_t( struct _PDCLIB_file_t * stream )
{
struct _PDCLIB_file_t * rc = stream;
if ( rc == NULL )
{
if ( ( rc = (struct _PDCLIB_file_t *)malloc( sizeof( struct _PDCLIB_file_t ) ) ) == NULL )
{
/* No memory */
return NULL;
}
}
if ( ( rc->buffer = (char *)malloc( BUFSIZ ) ) == NULL )
{
/* No memory */
free( rc );
return NULL;
}
rc->bufsize = BUFSIZ;
rc->bufidx = 0;
rc->bufend = 0;
rc->pos.offset = 0;
rc->pos.status = 0;
rc->ungetidx = 0;
rc->status = _PDCLIB_FREEBUFFER;
#ifndef __STDC_NO_THREADS
if ( stream == NULL )
{
/* If called by freopen() (stream not NULL), mutex is already
initialized.
*/
if ( mtx_init( &rc->mtx, mtx_plain | mtx_recursive ) != thrd_success )
{
/* could not initialize stream mutex */
free( rc->buffer );
free( rc );
return NULL;
}
}
#endif
/* TODO: Setting mbstate */
return rc;
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
int main( void )
{
#ifndef REGTEST
TESTCASE( NO_TESTDRIVER );
#endif
return TEST_RESULTS;
}
#endif
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