pkt-line: drop safe_write function
[git/git.git] / pkt-line.h
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1#ifndef PKTLINE_H
2#define PKTLINE_H
3
07d68930 4#include "git-compat-util.h"
f5615d24 5#include "strbuf.h"
07d68930 6
f3a3214e 7/*
e1485428
JK
8 * Write a packetized stream, where each line is preceded by
9 * its length (including the header) as a 4-byte hex number.
10 * A length of 'zero' means end of stream (and a length of 1-3
11 * would be an error).
12 *
13 * This is all pretty stupid, but we use this packetized line
14 * format to make a streaming format possible without ever
15 * over-running the read buffers. That way we'll never read
16 * into what might be the pack data (which should go to another
17 * process entirely).
18 *
19 * The writing side could use stdio, but since the reading
20 * side can't, we stay with pure read/write interfaces.
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21 */
22void packet_flush(int fd);
4ec99bf0 23void packet_write(int fd, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
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24void packet_buf_flush(struct strbuf *buf);
25void packet_buf_write(struct strbuf *buf, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
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26
27int packet_read_line(int fd, char *buffer, unsigned size);
46284dd1 28int packet_read(int fd, char *buffer, unsigned size);
f5615d24 29int packet_get_line(struct strbuf *out, char **src_buf, size_t *src_len);
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30
31#endif