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path: root/support/dktools/dk4strmf.c
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/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk4strmf.ctr
*/

/**	@file dk4strmf.c The dk4strmf module.
*/


#line 113 "dk4strmf.ctr"


#include "dk4conf.h"
#include "dk4strmf.h"

#ifndef STDIO_H_INCLUDED
#include <stdio.h>
#define	STDIO_H_INCLUDED 1
#endif

#if DK4_HAVE_ASSERT_H
#ifndef	ASSERT_H_INCLUDED
#include <assert.h>
#define	ASSERT_H_INCLUDED 1
#endif
#endif


void
dk4stream_file_with_close_function(dk4_stream_api_t *api)
{
  FILE		*fipo;
  size_t	 res;
#if	DK4_USE_ASSERT
  assert(NULL != api);
#endif
  if (NULL != api) {
    api->res = 0;
    api->sz_out = 0;
    fipo = (FILE *)(api->d);
    if (NULL != fipo) {
      switch (api->cmd) {
        case DK4_STREAM_API_READ: {
	  res = fread(api->b, 1, api->sz_in, fipo);
	  api->sz_out = res;
	  if (0 < res) {
	    api->res = 1;
	  }
	} break;
	case DK4_STREAM_API_WRITE: {
	  if (0 < api->sz_in) {
	    res = fwrite(api->b, 1, api->sz_in, fipo);
	    if (res == api->sz_in) {
	      api->res = 1;
	    }
	    api->sz_out = res;
	  } else {
	    api->res = 1;
	  }
	} break;
	case DK4_STREAM_API_FLUSH: {
	  if (0 == fflush(fipo)) {
	    api->res = 1;
	  }
	} break;
	case DK4_STREAM_API_AT_END: {
	  if (0 != feof(fipo)) {
	    api->res = 1;
	  }
	} break;
	case DK4_STREAM_API_CLOSE: {
	  if (0 == fclose(fipo)) {
	    api->res = 1;
	  }
	} break;
      }
    }
  }
}



void
dk4stream_file_function(dk4_stream_api_t *api)
{
#if	DK4_USE_ASSERT
  assert(NULL != api);
#endif
  if (NULL != api) {
    switch (api->cmd) {
      case DK4_STREAM_API_CLOSE: {
        api->res = 1;
      } break;
      default: {
        dk4stream_file_with_close_function(api);
      } break;
    }
  }
}




dk4_stream_t *
dk4stream_open_for_file(
  FILE		*fipo,
  int		 fl,
  size_t	 ibs,
  size_t	 obs,
  dk4_er_t	*erp
)
{
#if	DK4_USE_ASSERT
  assert(NULL != fipo);
#endif
  return (
    dk4stream_open( (void *)fipo, dk4stream_file_function, fl, ibs, obs, erp )
  );
}



dk4_stream_t *
dk4stream_open_for_file_with_close(
  FILE		*fipo,
  int		 fl,
  size_t	 ibs,
  size_t	 obs,
  dk4_er_t	*erp
)
{
#if	DK4_USE_ASSERT
  assert(NULL != fipo);
#endif
  return (
    dk4stream_open(
      (void *)fipo, dk4stream_file_with_close_function, fl, ibs, obs, erp 
    )
  );
}