src/gallium/auxiliary/os/os_stream_null.c

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  27
  28 /**
  29  * @file
  30  * Null stream implementation.
  31  */
  32
  33 #include "os_memory.h"
  34 #include "os_stream.h"
  35
  36
  37 static void
  38 os_null_stream_close(struct os_stream *stream)
  39 {
  40    (void)stream;
  41 }
  42
  43
  44 static boolean
  45 os_null_stream_write(struct os_stream *stream, const void *data, size_t size)
  46 {
  47    (void)data;
  48    (void)size;
  49    return TRUE;
  50 }
  51
  52
  53 static void
  54 os_null_stream_flush(struct os_stream *stream)
  55 {
  56    (void)stream;
  57 }
  58
  59 static int
  60 os_null_stream_vprintf (struct os_stream* stream, const char *format, va_list ap)
  61 {
  62    return 0;
  63 }
  64
  65 static struct os_stream
  66 os_null_stream = {
  67    &os_null_stream_close,
  68    &os_null_stream_write,
  69    &os_null_stream_flush,
  70    &os_null_stream_vprintf
  71 };
  72
  73
  74 struct os_stream *
  75 os_null_stream_create()
  76 {
  77    return &os_null_stream;
  78 }