1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-06-02 15:16:11 +02:00
git/write_or_die.c
Christian Couder 7cf67205ca Trace into open fd and refactor tracing code.
Now if GIT_TRACE is set to an integer value greater than 1
and lower than 10, we interpret this as an open fd value
and we trace into it. Note that this behavior is not
compatible with the previous one.

We also trace whole messages using one write(2) call to
make sure messages from processes do net get mixed up in
the middle.

It's now possible to run the tests like this:

	GIT_TRACE=9 make test 9>/var/tmp/trace.log

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-31 14:16:38 -07:00

46 lines
831 B
C

#include "cache.h"
void write_or_die(int fd, const void *buf, size_t count)
{
const char *p = buf;
ssize_t written;
while (count > 0) {
written = xwrite(fd, p, count);
if (written == 0)
die("disk full?");
else if (written < 0) {
if (errno == EPIPE)
exit(0);
die("write error (%s)", strerror(errno));
}
count -= written;
p += written;
}
}
int write_or_whine(int fd, const void *buf, size_t count, const char *msg)
{
const char *p = buf;
ssize_t written;
while (count > 0) {
written = xwrite(fd, p, count);
if (written == 0) {
fprintf(stderr, "%s: disk full?\n", msg);
return 0;
}
else if (written < 0) {
if (errno == EPIPE)
exit(0);
fprintf(stderr, "%s: write error (%s)\n",
msg, strerror(errno));
return 0;
}
count -= written;
p += written;
}
return 1;
}