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/*
* upb - a minimalist implementation of protocol buffers.
*
* Copyright (c) 2009-2010 Google Inc. See LICENSE for details.
* Author: Josh Haberman <jhaberman@gmail.com>
*
* This file contains upb_bytesrc and upb_bytesink implementations for
* upb_string.
*/
#ifndef UPB_STRSTREAM_H
#define UPB_STRSTREAM_H
#include "upb_stream.h"
#ifdef __cplusplus
extern "C" {
#endif
/* upb_stringsrc **************************************************************/
struct _upb_stringsrc {
upb_bytesrc bytesrc;
upb_string *str;
upb_strlen_t offset;
};
typedef struct _upb_stringsrc upb_stringsrc;
// Create/free a stringsrc.
void upb_stringsrc_init(upb_stringsrc *s);
void upb_stringsrc_uninit(upb_stringsrc *s);
// Resets the stringsrc to a state where it will vend the given string. The
// stringsrc will take a reference on the string, so the caller need not ensure
// that it outlives the stringsrc. A stringsrc can be reset multiple times.
void upb_stringsrc_reset(upb_stringsrc *s, upb_string *str);
// Returns the upb_bytesrc* for this stringsrc. Invalidated by reset above.
upb_bytesrc *upb_stringsrc_bytesrc(upb_stringsrc *s);
/* upb_stringsink *************************************************************/
struct _upb_stringsink {
upb_bytesink bytesink;
upb_string *str;
};
typedef struct _upb_stringsink upb_stringsink;
// Create/free a stringsrc.
void upb_stringsink_init(upb_stringsink *s);
void upb_stringsink_uninit(upb_stringsink *s);
// Resets the stringsink to a state where it will append to the given string.
// The string must be newly created or recycled. The stringsink will take a
// reference on the string, so the caller need not ensure that it outlives the
// stringsink. A stringsink can be reset multiple times.
void upb_stringsink_reset(upb_stringsink *s, upb_string *str);
// Returns the upb_bytesink* for this stringsrc. Invalidated by reset above.
upb_bytesink *upb_stringsink_bytesink();
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif
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