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/**************************************************************************
*
* Copyright 2008-2010 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/**
* @file
* Cross-platform sequential access stream abstraction.
*/
#ifndef _OS_STREAM_H_
#define _OS_STREAM_H_
#include "pipe/p_compiler.h"
/**
* OS stream (FILE, socket, etc) abstraction.
*/
struct os_stream
{
void
(*close)(struct os_stream *stream);
boolean
(*write)(struct os_stream *stream, const void *data, size_t size);
void
(*flush)(struct os_stream *stream);
int
(*vprintf)(struct os_stream *stream, const char* format, va_list ap);
};
static INLINE void
os_stream_close(struct os_stream *stream)
{
if (!stream)
return;
stream->close(stream);
}
static INLINE boolean
os_stream_write(struct os_stream *stream, const void *data, size_t size)
{
if (!stream)
return FALSE;
return stream->write(stream, data, size);
}
static INLINE boolean
os_stream_write_str(struct os_stream *stream, const char *str)
{
size_t size;
if (!stream)
return FALSE;
for(size = 0; str[size]; ++size)
;
return stream->write(stream, str, size);
}
static INLINE void
os_stream_flush(struct os_stream *stream)
{
stream->flush(stream);
}
int
os_default_stream_vprintf (struct os_stream* stream, const char *format, va_list ap);
static INLINE int
os_stream_vprintf (struct os_stream* stream, const char *format, va_list ap)
{
return stream->vprintf(stream, format, ap);
}
static INLINE int
os_stream_printf (struct os_stream* stream, const char *format, ...)
{
int retval;
va_list args;
va_start (args, format);
retval = stream->vprintf(stream, format, args);
va_end (args);
return retval;
}
struct os_stream *
os_file_stream_create(const char *filename);
struct os_stream *
os_null_stream_create(void);
extern struct os_stream *
os_log_stream;
struct os_stream *
os_str_stream_create(size_t initial_size);
const char *
os_str_stream_get(struct os_stream *stream);
char *
os_str_stream_get_and_close(struct os_stream *stream);
#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
#define os_file_stream_create(_filename) os_null_stream_create()
#endif
#endif /* _OS_STREAM_H_ */
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