From f42a5c4eb0453cd33276e078cd7541b1ef25b2c4 Mon Sep 17 00:00:00 2001 From: Franck Bui-Huu Date: Tue, 12 Sep 2006 11:00:13 +0200 Subject: [PATCH] connect.c: finish_connect(): allow null pid parameter git_connect() can return 0 if we use git protocol for example. Users of this function don't know and don't care if a process had been created or not, and to avoid them to check it before calling finish_connect() this patch allows finish_connect() to take a null pid. And in that case return 0. [jc: updated function signature of git_connect() with a comment on its return value. ] Signed-off-by: Franck Bui-Huu Signed-off-by: Junio C Hamano --- cache.h | 2 +- connect.c | 13 +++++++++++-- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/cache.h b/cache.h index a53204f6d..8d099979d 100644 --- a/cache.h +++ b/cache.h @@ -359,7 +359,7 @@ struct ref { #define REF_HEADS (1u << 1) #define REF_TAGS (1u << 2) -extern int git_connect(int fd[2], char *url, const char *prog); +extern pid_t git_connect(int fd[2], char *url, const char *prog); extern int finish_connect(pid_t pid); extern int path_match(const char *path, int nr, char **match); extern int match_refs(struct ref *src, struct ref *dst, struct ref ***dst_tail, diff --git a/connect.c b/connect.c index 49251f943..c55a20a4a 100644 --- a/connect.c +++ b/connect.c @@ -602,9 +602,15 @@ static void git_proxy_connect(int fd[2], char *host) #define MAX_CMD_LEN 1024 /* - * Yeah, yeah, fixme. Need to pass in the heads etc. + * This returns 0 if the transport protocol does not need fork(2), + * or a process id if it does. Once done, finish the connection + * with finish_connect() with the value returned from this function + * (it is safe to call finish_connect() with 0 to support the former + * case). + * + * Does not return a negative value on error; it just dies. */ -int git_connect(int fd[2], char *url, const char *prog) +pid_t git_connect(int fd[2], char *url, const char *prog) { char *host, *path = url; char *end; @@ -748,6 +754,9 @@ int git_connect(int fd[2], char *url, const char *prog) int finish_connect(pid_t pid) { + if (pid == 0) + return 0; + while (waitpid(pid, NULL, 0) < 0) { if (errno != EINTR) return -1; -- 2.30.2