src/gallium/auxiliary/os/os_stream_stdc.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008-2010 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * @file
  30  * Stream implementation based on the Standard C Library.
  31  */
  32
  33 #include "pipe/p_config.h"
  34
  35 #if defined(PIPE_OS_UNIX) || defined(PIPE_SUBSYSTEM_WINDOWS_USER)
  36
  37 #include <stdlib.h>
  38 #include <stdio.h>
  39
  40 #include "os_stream.h"
  41
  42
  43 struct os_stdc_stream
  44 {
  45    struct os_stream base;
  46
  47    FILE *file;
  48 };
  49
  50
  51 static INLINE struct os_stdc_stream *
  52 os_stdc_stream(struct os_stream *stream)
  53 {
  54    return (struct os_stdc_stream *)stream;
  55 }
  56
  57
  58 static void
  59 os_stdc_stream_close(struct os_stream *_stream)
  60 {
  61    struct os_stdc_stream *stream = os_stdc_stream(_stream);
  62
  63    fclose(stream->file);
  64
  65    free(stream);
  66 }
  67
  68
  69 static boolean
  70 os_stdc_stream_write(struct os_stream *_stream, const void *data, size_t size)
  71 {
  72    struct os_stdc_stream *stream = os_stdc_stream(_stream);
  73
  74    return fwrite(data, size, 1, stream->file) == size ? TRUE : FALSE;
  75 }
  76
  77
  78 static void
  79 os_stdc_stream_flush(struct os_stream *_stream)
  80 {
  81    struct os_stdc_stream *stream = os_stdc_stream(_stream);
  82
  83    fflush(stream->file);
  84 }
  85
  86
  87 struct os_stream *
  88 os_file_stream_create(const char *filename)
  89 {
  90    struct os_stdc_stream *stream;
  91
  92    stream = (struct os_stdc_stream *)calloc(1, sizeof(*stream));
  93    if(!stream)
  94       goto no_stream;
  95
  96    stream->base.close = &os_stdc_stream_close;
  97    stream->base.write = &os_stdc_stream_write;
  98    stream->base.flush = &os_stdc_stream_flush;
  99
 100    stream->file = fopen(filename, "w");
 101    if(!stream->file)
 102       goto no_file;
 103
 104    return &stream->base;
 105
 106 no_file:
 107    free(stream);
 108 no_stream:
 109    return NULL;
 110 }
 111
 112
 113 #endif