From 5f02d31597df35ca98e9080e12bfbb18dadadcbe Mon Sep 17 00:00:00 2001 From: Junio C Hamano Date: Mon, 15 Feb 2010 18:34:28 -0800 Subject: [PATCH] Fix use of mutex in threaded grep The program can decide at runtime not to use threading even if the support is compiled in. In such a case, mutexes are not necessary and left uninitialized. But the code incorrectly tried to take and release the read_sha1_mutex unconditionally. Signed-off-by: Junio C Hamano Acked-by: Fredrik Kuivinen --- builtin-grep.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/builtin-grep.c b/builtin-grep.c index 26d4deb1cc..362122c432 100644 --- a/builtin-grep.c +++ b/builtin-grep.c @@ -408,15 +408,25 @@ static int pathspec_matches(const char **paths, const char *name, int max_depth) return 0; } +static void *lock_and_read_sha1_file(const unsigned char *sha1, enum object_type *type, unsigned long *size) +{ + void *data; + + if (use_threads) { + read_sha1_lock(); + data = read_sha1_file(sha1, type, size); + read_sha1_unlock(); + } else { + data = read_sha1_file(sha1, type, size); + } + return data; +} + static void *load_sha1(const unsigned char *sha1, unsigned long *size, const char *name) { enum object_type type; - char *data; - - read_sha1_lock(); - data = read_sha1_file(sha1, &type, size); - read_sha1_unlock(); + void *data = lock_and_read_sha1_file(sha1, &type, size); if (!data) error("'%s': unable to read %s", name, sha1_to_hex(sha1)); @@ -605,10 +615,7 @@ static int grep_tree(struct grep_opt *opt, const char **paths, void *data; unsigned long size; - read_sha1_lock(); - data = read_sha1_file(entry.sha1, &type, &size); - read_sha1_unlock(); - + data = lock_and_read_sha1_file(entry.sha1, &type, &size); if (!data) die("unable to read tree (%s)", sha1_to_hex(entry.sha1));