Revision b893e88191c61bf44ae83588d3a01e543bcb85c9 authored by Junio C Hamano on 28 November 2012, 21:42:30 UTC, committed by Junio C Hamano on 28 November 2012, 21:42:30 UTC
* mm/status-push-pull-advise: status: add advice on how to push/pull to tracking branch
write_or_die.c
#include "cache.h"
/*
* Some cases use stdio, but want to flush after the write
* to get error handling (and to get better interactive
* behaviour - not buffering excessively).
*
* Of course, if the flush happened within the write itself,
* we've already lost the error code, and cannot report it any
* more. So we just ignore that case instead (and hope we get
* the right error code on the flush).
*
* If the file handle is stdout, and stdout is a file, then skip the
* flush entirely since it's not needed.
*/
void maybe_flush_or_die(FILE *f, const char *desc)
{
static int skip_stdout_flush = -1;
struct stat st;
char *cp;
if (f == stdout) {
if (skip_stdout_flush < 0) {
cp = getenv("GIT_FLUSH");
if (cp)
skip_stdout_flush = (atoi(cp) == 0);
else if ((fstat(fileno(stdout), &st) == 0) &&
S_ISREG(st.st_mode))
skip_stdout_flush = 1;
else
skip_stdout_flush = 0;
}
if (skip_stdout_flush && !ferror(f))
return;
}
if (fflush(f)) {
if (errno == EPIPE)
exit(0);
die_errno("write failure on '%s'", desc);
}
}
void fsync_or_die(int fd, const char *msg)
{
if (fsync(fd) < 0) {
die_errno("fsync error on '%s'", msg);
}
}
void write_or_die(int fd, const void *buf, size_t count)
{
if (write_in_full(fd, buf, count) < 0) {
if (errno == EPIPE)
exit(0);
die_errno("write error");
}
}
int write_or_whine_pipe(int fd, const void *buf, size_t count, const char *msg)
{
if (write_in_full(fd, buf, count) < 0) {
if (errno == EPIPE)
exit(0);
fprintf(stderr, "%s: write error (%s)\n",
msg, strerror(errno));
return 0;
}
return 1;
}
int write_or_whine(int fd, const void *buf, size_t count, const char *msg)
{
if (write_in_full(fd, buf, count) < 0) {
fprintf(stderr, "%s: write error (%s)\n",
msg, strerror(errno));
return 0;
}
return 1;
}
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