remote-curl: reduce scope of rpc_state.result

The result field in struct rpc_state is only used in rpc_service(), and
not in any functions it directly or indirectly calls. Refactor it to
become an argument of rpc_service() instead.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/remote-curl.c b/remote-curl.c
index d33d5bbfa8409a42a59f91d6c10a056485ceb0c2..8e0e37ed3d5ef13fefc75fa5245bb43978d83e1e 100644 (file)
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -516,7 +516,6 @@ struct rpc_state {
        int in;
        int out;
        int any_written;
-       struct strbuf result;
        unsigned gzip_request : 1;
        unsigned initial_buffer : 1;
 };
@@ -828,7 +827,8 @@ retry:
 }
 
 static int rpc_service(struct rpc_state *rpc, struct discovery *heads,
-                      const char **client_argv, const struct strbuf *preamble)
+                      const char **client_argv, const struct strbuf *preamble,
+                      struct strbuf *rpc_result)
 {
        const char *svc = rpc->service_name;
        struct strbuf buf = STRBUF_INIT;
@@ -849,7 +849,6 @@ static int rpc_service(struct rpc_state *rpc, struct discovery *heads,
        rpc->buf = xmalloc(rpc->alloc);
        rpc->in = client.in;
        rpc->out = client.out;
-       strbuf_init(&rpc->result, 0);
 
        strbuf_addf(&buf, "%s%s", url.buf, svc);
        rpc->service_url = strbuf_detach(&buf, NULL);
@@ -877,7 +876,7 @@ static int rpc_service(struct rpc_state *rpc, struct discovery *heads,
        close(client.in);
        client.in = -1;
        if (!err) {
-               strbuf_read(&rpc->result, client.out, 0);
+               strbuf_read(rpc_result, client.out, 0);
        } else {
                char buf[4096];
                for (;;)
@@ -930,6 +929,7 @@ static int fetch_git(struct discovery *heads,
        struct strbuf preamble = STRBUF_INIT;
        int i, err;
        struct argv_array args = ARGV_ARRAY_INIT;
+       struct strbuf rpc_result = STRBUF_INIT;
 
        argv_array_pushl(&args, "fetch-pack", "--stateless-rpc",
                         "--stdin", "--lock-pack", NULL);
@@ -977,10 +977,10 @@ static int fetch_git(struct discovery *heads,
        rpc.service_name = "git-upload-pack",
        rpc.gzip_request = 1;
 
-       err = rpc_service(&rpc, heads, args.argv, &preamble);
-       if (rpc.result.len)
-               write_or_die(1, rpc.result.buf, rpc.result.len);
-       strbuf_release(&rpc.result);
+       err = rpc_service(&rpc, heads, args.argv, &preamble, &rpc_result);
+       if (rpc_result.len)
+               write_or_die(1, rpc_result.buf, rpc_result.len);
+       strbuf_release(&rpc_result);
        strbuf_release(&preamble);
        argv_array_clear(&args);
        return err;
@@ -1075,6 +1075,7 @@ static int push_git(struct discovery *heads, int nr_spec, char **specs)
        struct argv_array args;
        struct string_list_item *cas_option;
        struct strbuf preamble = STRBUF_INIT;
+       struct strbuf rpc_result = STRBUF_INIT;
 
        argv_array_init(&args);
        argv_array_pushl(&args, "send-pack", "--stateless-rpc", "--helper-status",
@@ -1108,10 +1109,10 @@ static int push_git(struct discovery *heads, int nr_spec, char **specs)
        memset(&rpc, 0, sizeof(rpc));
        rpc.service_name = "git-receive-pack",
 
-       err = rpc_service(&rpc, heads, args.argv, &preamble);
-       if (rpc.result.len)
-               write_or_die(1, rpc.result.buf, rpc.result.len);
-       strbuf_release(&rpc.result);
+       err = rpc_service(&rpc, heads, args.argv, &preamble, &rpc_result);
+       if (rpc_result.len)
+               write_or_die(1, rpc_result.buf, rpc_result.len);
+       strbuf_release(&rpc_result);
        strbuf_release(&preamble);
        argv_array_clear(&args);
        return err;