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[PATCH 08/14] write_shared_index(): use tempfile module

From
Michael Haggerty <mhagger@alum.mit.edu>
Date
Jun 8, 2015, 09:07 UTC
Message-ID
<78ffe87f5dd9037ae16a77bf9c40dcfdd9e3b40f.1433751986.git.mhagger@alum.mit.edu>
In-Reply-To
<cover.1433751986.git.mhagger@alum.mit.edu>
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
---
 read-cache.c | 37 +++++--------------------------------
 1 file changed, 5 insertions(+), 32 deletions(-)
diff --git a/read-cache.c b/read-cache.c
index 3e49c49..4f7b70f 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -2137,54 +2137,27 @@ static int write_split_index(struct index_state *istate,
 	return ret;
 }
 
-static char *temporary_sharedindex;
-
-static void remove_temporary_sharedindex(void)
-{
-	if (temporary_sharedindex) {
-		unlink_or_warn(temporary_sharedindex);
-		free(temporary_sharedindex);
-		temporary_sharedindex = NULL;
-	}
-}
-
-static void remove_temporary_sharedindex_on_signal(int signo)
-{
-	remove_temporary_sharedindex();
-	sigchain_pop(signo);
-	raise(signo);
-}
+static struct tempfile temporary_sharedindex;
 
 static int write_shared_index(struct index_state *istate,
 			      struct lock_file *lock, unsigned flags)
 {
 	struct split_index *si = istate->split_index;
-	static int installed_handler;
 	int fd, ret;
 
-	temporary_sharedindex = git_pathdup("sharedindex_XXXXXX");
-	fd = mkstemp(temporary_sharedindex);
+	fd = mks_tempfile(&temporary_sharedindex, git_path("sharedindex_XXXXXX"));
 	if (fd < 0) {
-		free(temporary_sharedindex);
-		temporary_sharedindex = NULL;
 		hashclr(si->base_sha1);
 		return do_write_locked_index(istate, lock, flags);
 	}
-	if (!installed_handler) {
-		atexit(remove_temporary_sharedindex);
-		sigchain_push_common(remove_temporary_sharedindex_on_signal);
-	}
 	move_cache_to_base_index(istate);
 	ret = do_write_index(si->base, fd, 1);
-	close(fd);
 	if (ret) {
-		remove_temporary_sharedindex();
+		delete_tempfile(&temporary_sharedindex);
 		return ret;
 	}
-	ret = rename(temporary_sharedindex,
-		     git_path("sharedindex.%s", sha1_to_hex(si->base->sha1)));
-	free(temporary_sharedindex);
-	temporary_sharedindex = NULL;
+	ret = rename_tempfile(&temporary_sharedindex,
+			      git_path("sharedindex.%s", sha1_to_hex(si->base->sha1)));
 	if (!ret)
 		hashcpy(si->base_sha1, si->base->sha1);
 	return ret;
-- 
2.1.4
Previous: Michael HaggertyNext: Junio C Hamano
Message 18 of 26 in “Introduce a tempfile module”
  1. 00/14 Introduce a tempfile moduleMichael Haggerty, Jun 8, 2015
  2. 01/14 Move lockfile API documentation to lockfile.hMichael Haggerty, Jun 8, 2015
  3. 02/14 tempfile: a new module for handling temporary filesMichael Haggerty, Jun 8, 2015
  4. Junio C HamanoJun 10, 2015
  5. Michael HaggertyJun 10, 2015
  6. Junio C HamanoJun 10, 2015
  7. 03/14 lockfile: remove some redundant functionsMichael Haggerty, Jun 8, 2015
  8. Junio C HamanoJun 10, 2015
  9. Johannes SixtJun 10, 2015
  10. 04/14 commit_lock_file(): use get_locked_file_path()Michael Haggerty, Jun 8, 2015
  11. 05/14 register_tempfile_object(): new function, extracted from create_tempfile()Michael Haggerty, Jun 8, 2015
  12. 06/14 tempfile: add several functions for creating temporary filesMichael Haggerty, Jun 8, 2015
  13. Junio C HamanoJun 10, 2015
  14. Michael HaggertyAug 10, 2015
  15. 07/14 register_tempfile(): new function to handle an existing temporary fileMichael Haggerty, Jun 8, 2015
  16. Junio C HamanoJun 10, 2015
  17. Michael HaggertyAug 10, 2015
  18. 08/14 write_shared_index(): use tempfile moduleMichael Haggerty, Jun 8, 2015
  19. Junio C HamanoJun 10, 2015
  20. 09/14 setup_temporary_shallow(): use tempfile moduleMichael Haggerty, Jun 8, 2015
  21. 10/14 diff: use tempfile moduleMichael Haggerty, Jun 8, 2015
  22. 11/14 lock_repo_for_gc(): compute the path to "gc.pid" only onceMichael Haggerty, Jun 8, 2015
  23. 12/14 gc: use tempfile module to handle gc.pid fileMichael Haggerty, Jun 8, 2015
  24. 13/14 credential-cache--daemon: delete socket from main()Michael Haggerty, Jun 8, 2015
  25. 14/14 credential-cache--daemon: use tempfile moduleMichael Haggerty, Jun 8, 2015
  26. Junio C HamanoJun 10, 2015

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