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try repeating write

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This commit is contained in:
vanhauser-thc
2022-04-22 10:28:14 +02:00
parent 5798c686b2
commit 7f26d13345
4 changed files with 36 additions and 17 deletions
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47
include/debug.h
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@ -355,20 +355,39 @@ static inline const char *colorfilter(const char *x) {
/* Error-checking versions of read() and write() that call RPFATAL() as
appropriate. */
#define ck_write(fd, buf, len, fn) \
do { \
\
int _fd = (fd); \
\
s32 _len = (s32)(len); \
s32 _res = write(_fd, (buf), _len); \
if (_res != _len) { \
\
RPFATAL(_res, "Short write to %s, fd %d (%d of %d bytes)", fn, _fd, \
_res, _len); \
\
} \
\
#define ck_write(fd, buf, len, fn) \
do { \
\
if (len <= 0) break; \
int _fd = (fd); \
s32 _written = 0, _off = 0, _len = (s32)(len); \
\
do { \
\
s32 _res = write(_fd, (buf) + _off, _len); \
if (_res != _len && (_res > 0 && _written + _res != _len)) { \
\
if (_res > 0) { \
\
_written += _res; \
_len -= _res; \
_off += _res; \
\
} else { \
\
RPFATAL(_res, "Short write to %s, fd %d (%d of %d bytes)", fn, _fd, \
_res, _len); \
\
} \
\
} else { \
\
break; \
\
} \
\
} while (1); \
\
} while (0)
#define ck_read(fd, buf, len, fn) \