send-pack.c: move async's #ifdef NO_PTHREADS back to run-command.c
On systems that do not support multithread, start_async() is
implemented with fork(). This implementation details unfortunately
leak out at least in send-pack.c [1].
To keep the code base clean of NO_PTHREADS, move the this #ifdef back
to run-command.c. The new wrapper function async_with_fork() at least
helps suggest that this special "close()" is related to async in fork
mode.
[1] 09c9957cf7 (send-pack: avoid deadlock when pack-object dies early
- 2011-04-25)
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/run-command.h b/run-command.h
index 9b7f382..68f5369 100644
--- a/run-command.h
+++ b/run-command.h
@@ -141,6 +141,7 @@ struct async {
int start_async(struct async *async);
int finish_async(struct async *async);
int in_async(void);
+int async_with_fork(void);
void check_pipe(int err);
/**
