Renà Scharfe wrote:
> Can it be set automatically once the first pack is loaded? A quick look
> suggests that use_pack() would be the right place to do it.
How about this? Replaces patches 7 and 8.
--8 <--
Subject: Remove pack file handling dependency from wrapper.o
As v1.7.0-rc0~43 (slim down "git show-index", 2010-01-21) explains,
use of xmalloc() brings in a dependency on zlib, the sha1 lib, and the
rest of git's object file access machinery via try_to_free_pack_memory.
That is overkill when xmalloc is just being used as a convenience
wrapper to exit when no memory is available.
So defer setting try_to_free_pack_memory as try_to_free_routine until
the first packfile is opened in add_packed_git().
After this change, a simple program using xmalloc() and no other
functions will not pull in any code from libgit.a aside from wrapper.o
and usage.o.
Improved-by: Renà Scharfe <rene.scharfe@xxxxxxxxxxxxxx>
Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx>
---
sha1_file.c | 11 +++++++++++
wrapper.c | 5 ++---
2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/sha1_file.c b/sha1_file.c
index 8e299ae..e0d2496 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -818,11 +818,22 @@ static struct packed_git *alloc_packed_git(int extra)
return p;
}
+static void try_to_free_pack_memory(size_t size)
+{
+ release_pack_memory(size, -1);
+}
+
struct packed_git *add_packed_git(const char *path, int path_len, int local)
{
+ static int have_set_try_to_free_routine;
struct stat st;
struct packed_git *p = alloc_packed_git(path_len + 2);
+ if (!have_set_try_to_free_routine) {
+ have_set_try_to_free_routine = 1;
+ set_try_to_free_routine(try_to_free_pack_memory);
+ }
+
/*
* Make sure a corresponding .pack file exists and that
* the index looks sane.
diff --git a/wrapper.c b/wrapper.c
index 185dfbc..4c1639f 100644
--- a/wrapper.c
+++ b/wrapper.c
@@ -3,12 +3,11 @@
*/
#include "cache.h"
-static void try_to_free_builtin(size_t size)
+static void do_nothing(size_t size)
{
- release_pack_memory(size, -1);
}
-static void (*try_to_free_routine)(size_t size) = try_to_free_builtin;
+static void (*try_to_free_routine)(size_t size) = do_nothing;
try_to_free_t set_try_to_free_routine(try_to_free_t routine)
{
--
1.7.2.3.557.gab647.dirty
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