73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/**
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* Copyright (C) 2008 Happy Fish / YuQing
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*
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* FastDFS may be copied only under the terms of the GNU General
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* Public License V3, which may be found in the FastDFS source kit.
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* Please visit the FastDFS Home Page http://www.fastken.com/ for more detail.
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**/
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#ifndef BUFFERED_FILE_WRITER_H
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#define BUFFERED_FILE_WRITER_H
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#include "common_define.h"
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typedef struct
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{
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int fd;
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int buffer_size;
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char filename[MAX_PATH_SIZE];
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char *buff;
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char *current;
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char *buff_end;
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char *water_mark;
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} BufferedFileWriter;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** open buffered file writer
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* parameters:
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* writer: the writer
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* filename: the filename to write
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* buffer_size: the buffer size, <= 0 for recommend 64KB
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* max_written_once: max written bytes per call, <= 0 for 256
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* mode: the file privilege such as 0644
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* return: error code, 0 for success, != 0 for errno
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*/
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int buffered_file_writer_open_ex(BufferedFileWriter *writer,
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const char *filename, const int buffer_size,
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const int max_written_once, const int mode);
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static inline int buffered_file_writer_open(BufferedFileWriter *writer,
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const char *filename)
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{
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const int buffer_size = 0;
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const int max_written_once = 0;
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const int mode = 0644;
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return buffered_file_writer_open_ex(writer, filename,
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buffer_size, max_written_once, mode);
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}
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/** close buffered file writer
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* parameters:
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* writer: the writer
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* return: error code, 0 for success, != 0 for errno
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*/
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int buffered_file_writer_close(BufferedFileWriter *writer);
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int buffered_file_writer_append(BufferedFileWriter *writer,
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const char *format, ...);
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int buffered_file_writer_append_buff(BufferedFileWriter *writer,
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const char *buff, const int len);
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int buffered_file_writer_flush(BufferedFileWriter *writer);
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#ifdef __cplusplus
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}
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#endif
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#endif
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