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[core] write_all() simpler loop; better asm

personal/stbuehler/tests-path
Glenn Strauss 2021-06-18 21:44:25 -04:00
parent 18e96334d6
commit 9f90f33288
1 changed files with 6 additions and 5 deletions
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11
src/log.c
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@ -49,17 +49,18 @@ int log_clock_gettime_monotonic (struct timespec *ts) {
/* retry write on EINTR or when not all data was written */
ssize_t write_all(int fd, const void * const buf, size_t count) {
ssize_t written = 0;
ssize_t wr;
for (ssize_t wr; count > 0; count -= wr, written += wr) {
do {
wr = write(fd, (const char *)buf + written, count);
if (wr > 0) continue;
} while (wr > 0 ? (written += wr, count -= wr) : wr < 0 && errno == EINTR);
if (wr < 0 && errno == EINTR) { wr = 0; continue; } /* try again */
if (__builtin_expect( (0 == count), 1))
return written;
else {
if (0 == wr) errno = EIO; /* really shouldn't happen... */
return -1; /* fail - repeating probably won't help */
}
return written;
}
static int log_buffer_prepare(const log_error_st *errh, const char *filename, unsigned int line, buffer *b) {