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>

Jeff King committed Sep 5, 2017 at 08:14 UTC 9b028aa45a2016ae0dbdfeb85ad9d43f2017db0d
1 file changed +10 -10
tempfile.c
+10 -10
@@ -96,7 +96,7 @@ static void prepare_tempfile_object(struct tempfile *tempfile)
96 }
97
98 if (is_tempfile_active(tempfile))
99 - die("BUG: prepare_tempfile_object called for active object");
99 + BUG("prepare_tempfile_object called for active object");
100 if (!tempfile->on_list) {
101 /* Initialize *tempfile and add it to tempfile_list: */
102 tempfile->fd = -1;
@@ -109,7 +109,7 @@ static void prepare_tempfile_object(struct tempfile *tempfile)
109 tempfile->on_list = 1;
110 } else if (tempfile->filename.len) {
111 /* This shouldn't happen, but better safe than sorry. */
112 - die("BUG: prepare_tempfile_object called for improperly-reset object");
112 + BUG("prepare_tempfile_object called for improperly-reset object");
113 }
114 }
115
@@ -205,9 +205,9 @@ int xmks_tempfile_m(struct tempfile *tempfile, const char *template, int mode)
205 FILE *fdopen_tempfile(struct tempfile *tempfile, const char *mode)
206 {
207 if (!is_tempfile_active(tempfile))
208 - die("BUG: fdopen_tempfile() called for inactive object");
208 + BUG("fdopen_tempfile() called for inactive object");
209 if (tempfile->fp)
210 - die("BUG: fdopen_tempfile() called for open object");
210 + BUG("fdopen_tempfile() called for open object");
211
212 tempfile->fp = fdopen(tempfile->fd, mode);
213 return tempfile->fp;
@@ -216,21 +216,21 @@ FILE *fdopen_tempfile(struct tempfile *tempfile, const char *mode)
216 const char *get_tempfile_path(struct tempfile *tempfile)
217 {
218 if (!is_tempfile_active(tempfile))
219 - die("BUG: get_tempfile_path() called for inactive object");
219 + BUG("get_tempfile_path() called for inactive object");
220 return tempfile->filename.buf;
221 }
222
223 int get_tempfile_fd(struct tempfile *tempfile)
224 {
225 if (!is_tempfile_active(tempfile))
226 - die("BUG: get_tempfile_fd() called for inactive object");
226 + BUG("get_tempfile_fd() called for inactive object");
227 return tempfile->fd;
228 }
229
230 FILE *get_tempfile_fp(struct tempfile *tempfile)
231 {
232 if (!is_tempfile_active(tempfile))
233 - die("BUG: get_tempfile_fp() called for inactive object");
233 + BUG("get_tempfile_fp() called for inactive object");
234 return tempfile->fp;
235 }
236
@@ -265,9 +265,9 @@ int close_tempfile_gently(struct tempfile *tempfile)
265 int reopen_tempfile(struct tempfile *tempfile)
266 {
267 if (!is_tempfile_active(tempfile))
268 - die("BUG: reopen_tempfile called for an inactive object");
268 + BUG("reopen_tempfile called for an inactive object");
269 if (0 <= tempfile->fd)
270 - die("BUG: reopen_tempfile called for an open object");
270 + BUG("reopen_tempfile called for an open object");
271 tempfile->fd = open(tempfile->filename.buf, O_WRONLY);
272 return tempfile->fd;
273 }
@@ -275,7 +275,7 @@ int reopen_tempfile(struct tempfile *tempfile)
275 int rename_tempfile(struct tempfile *tempfile, const char *path)
276 {
277 if (!is_tempfile_active(tempfile))
278 - die("BUG: rename_tempfile called for inactive object");
278 + BUG("rename_tempfile called for inactive object");
279
280 if (close_tempfile_gently(tempfile)) {
281 delete_tempfile(tempfile);