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tempfile: replace die("BUG") with BUG() 

Compared to die(), using BUG() triggers abort(). That may
give us an actual coredump, which should make it easier to
get a stack trace. And since the programming error for these
assertions is not in the functions themselves but in their
callers, such a stack trace is needed to actually find the
source of the bug.

In addition, abort() raises SIGABRT, which is more likely to
be caught by our test suite.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Jeff King 2017-09-05 08:14:43 -04:00 committed by Junio C Hamano
parent f5b4dc7668
commit 9b028aa45a
1 changed files with 10 additions and 10 deletions
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20
tempfile.c
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@ -96,7 +96,7 @@ static void prepare_tempfile_object(struct tempfile *tempfile)
}

if (is_tempfile_active(tempfile))
die("BUG: prepare_tempfile_object called for active object");
BUG("prepare_tempfile_object called for active object");
if (!tempfile->on_list) {
/* Initialize *tempfile and add it to tempfile_list: */
tempfile->fd = -1;
@ -109,7 +109,7 @@ static void prepare_tempfile_object(struct tempfile *tempfile)
tempfile->on_list = 1;
} else if (tempfile->filename.len) {
/* This shouldn't happen, but better safe than sorry. */
die("BUG: prepare_tempfile_object called for improperly-reset object");
BUG("prepare_tempfile_object called for improperly-reset object");
}
}

@ -205,9 +205,9 @@ int xmks_tempfile_m(struct tempfile *tempfile, const char *template, int mode)
FILE *fdopen_tempfile(struct tempfile *tempfile, const char *mode)
{
if (!is_tempfile_active(tempfile))
die("BUG: fdopen_tempfile() called for inactive object");
BUG("fdopen_tempfile() called for inactive object");
if (tempfile->fp)
die("BUG: fdopen_tempfile() called for open object");
BUG("fdopen_tempfile() called for open object");

tempfile->fp = fdopen(tempfile->fd, mode);
return tempfile->fp;
@ -216,21 +216,21 @@ FILE *fdopen_tempfile(struct tempfile *tempfile, const char *mode)
const char *get_tempfile_path(struct tempfile *tempfile)
{
if (!is_tempfile_active(tempfile))
die("BUG: get_tempfile_path() called for inactive object");
BUG("get_tempfile_path() called for inactive object");
return tempfile->filename.buf;
}

int get_tempfile_fd(struct tempfile *tempfile)
{
if (!is_tempfile_active(tempfile))
die("BUG: get_tempfile_fd() called for inactive object");
BUG("get_tempfile_fd() called for inactive object");
return tempfile->fd;
}

FILE *get_tempfile_fp(struct tempfile *tempfile)
{
if (!is_tempfile_active(tempfile))
die("BUG: get_tempfile_fp() called for inactive object");
BUG("get_tempfile_fp() called for inactive object");
return tempfile->fp;
}

@ -265,9 +265,9 @@ int close_tempfile_gently(struct tempfile *tempfile)
int reopen_tempfile(struct tempfile *tempfile)
{
if (!is_tempfile_active(tempfile))
die("BUG: reopen_tempfile called for an inactive object");
BUG("reopen_tempfile called for an inactive object");
if (0 <= tempfile->fd)
die("BUG: reopen_tempfile called for an open object");
BUG("reopen_tempfile called for an open object");
tempfile->fd = open(tempfile->filename.buf, O_WRONLY);
return tempfile->fd;
}
@ -275,7 +275,7 @@ int reopen_tempfile(struct tempfile *tempfile)
int rename_tempfile(struct tempfile *tempfile, const char *path)
{
if (!is_tempfile_active(tempfile))
die("BUG: rename_tempfile called for inactive object");
BUG("rename_tempfile called for inactive object");

if (close_tempfile_gently(tempfile)) {
delete_tempfile(tempfile);