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/*
* Copyright 2016 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef WASM_WRITER_H_
#define WASM_WRITER_H_
#include <stdio.h>
#include "wasm-allocator.h"
#include "wasm-common.h"
typedef struct WasmWriter {
void* user_data;
WasmResult (*write_data)(size_t offset,
const void* data,
size_t size,
void* user_data);
WasmResult (*move_data)(size_t dst_offset,
size_t src_offset,
size_t size,
void* user_data);
} WasmWriter;
typedef struct WasmOutputBuffer {
WasmAllocator* allocator;
void* start;
size_t size;
size_t capacity;
} WasmOutputBuffer;
typedef struct WasmMemoryWriter {
WasmWriter base;
WasmOutputBuffer buf;
} WasmMemoryWriter;
typedef struct WasmFileWriter {
WasmWriter base;
FILE* file;
size_t offset;
} WasmFileWriter;
WASM_EXTERN_C_BEGIN
/* WasmFileWriter */
WasmResult wasm_init_file_writer(WasmFileWriter* writer, const char* filename);
void wasm_init_file_writer_existing(WasmFileWriter* writer, FILE* file);
void wasm_close_file_writer(WasmFileWriter* writer);
/* WasmMemoryWriter */
WasmResult wasm_init_mem_writer(WasmAllocator* allocator,
WasmMemoryWriter* writer);
void wasm_steal_mem_writer_output_buffer(WasmMemoryWriter* writer,
WasmOutputBuffer* out_buf);
void wasm_close_mem_writer(WasmMemoryWriter* writer);
/* WasmOutputBuffer */
WasmResult wasm_write_output_buffer_to_file(WasmOutputBuffer* buf,
const char* filename);
void wasm_destroy_output_buffer(WasmOutputBuffer* buf);
WASM_EXTERN_C_END
#endif /* WASM_WRITER_H_ */
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