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(streams/memory_stream.c) Cleanup

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This commit is contained in:
twinaphex 2016-04-07 02:15:48 +02:00
parent 2a3bba34e0
commit 67cf1153c6
1 changed files with 19 additions and 2 deletions
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21
libretro-common/streams/memory_stream.c
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@ -50,6 +50,9 @@ size_t memstream_get_last_size(void)
static void memstream_init(memstream_t *stream, uint8_t *buffer, size_t max_size)
{
if (!stream)
return;
stream->buf = buffer;
stream->size = max_size;
stream->ptr = 0;
@ -71,13 +74,21 @@ memstream_t *memstream_open(void)
void memstream_close(memstream_t *stream)
{
if (!stream)
return;
last_file_size = stream->ptr;
free(stream);
}
size_t memstream_read(memstream_t *stream, void *data, size_t bytes)
{
size_t avail = stream->size - stream->ptr;
size_t avail = 0;
if (!stream)
return 0;
avail = stream->size - stream->ptr;
if (bytes > avail)
bytes = avail;
@ -88,7 +99,12 @@ size_t memstream_read(memstream_t *stream, void *data, size_t bytes)
size_t memstream_write(memstream_t *stream, const void *data, size_t bytes)
{
size_t avail = stream->size - stream->ptr;
size_t avail = 0;
if (!stream)
return 0;
avail = stream->size - stream->ptr;
if (bytes > avail)
bytes = avail;
@ -121,6 +137,7 @@ int memstream_seek(memstream_t *stream, int offset, int whence)
stream->ptr = ptr;
return 0;
}
return -1;
}