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authorJohannes Schindelin <Johannes.Schindelin@gmx.de>2005-10-28 02:50:26 (GMT)
committerJunio C Hamano <junkio@cox.net>2005-10-29 05:57:01 (GMT)
commitc4c86f07d01bc4a05126b129f644e70dd9e244d0 (patch)
tree54b79ae088630bfa7f519b63405c86bc32511d3e /fetch-pack.c
parent1bd8c8f00b1c7facb67c99047fe777b53f2c49ff (diff)
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git-fetch-pack: Support multi_ack extension
The client side support for multi_ack. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'fetch-pack.c')
-rw-r--r--fetch-pack.c58
1 files changed, 42 insertions, 16 deletions
diff --git a/fetch-pack.c b/fetch-pack.c
index b584264..3df9911 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -19,7 +19,7 @@ static const char *exec = "git-upload-pack";
#define POPPED (1U << 4)
static struct commit_list *rev_list = NULL;
-static int non_common_revs = 0;
+static int non_common_revs = 0, multi_ack = 0;
static void rev_list_push(struct commit *commit, int mark)
{
@@ -157,7 +157,8 @@ static int find_common(int fd[2], unsigned char *result_sha1,
continue;
}
- packet_write(fd[1], "want %s\n", sha1_to_hex(remote));
+ packet_write(fd[1], "want %s%s\n", sha1_to_hex(remote),
+ multi_ack ? " multi_ack" : "");
fetching++;
}
packet_flush(fd[1]);
@@ -171,6 +172,8 @@ static int find_common(int fd[2], unsigned char *result_sha1,
if (verbose)
fprintf(stderr, "have %s\n", sha1_to_hex(sha1));
if (!(31 & ++count)) {
+ int ack;
+
packet_flush(fd[1]);
flushes++;
@@ -180,29 +183,47 @@ static int find_common(int fd[2], unsigned char *result_sha1,
*/
if (count == 32)
continue;
- if (get_ack(fd[0], result_sha1)) {
- flushes = 0;
- retval = 0;
- if (verbose)
- fprintf(stderr, "got ack\n");
- break;
- }
+
+ do {
+ ack = get_ack(fd[0], result_sha1);
+ if (verbose && ack)
+ fprintf(stderr, "got ack %d %s\n", ack,
+ sha1_to_hex(result_sha1));
+ if (ack == 1) {
+ flushes = 0;
+ multi_ack = 0;
+ retval = 0;
+ goto done;
+ } else if (ack == 2) {
+ struct commit *commit =
+ lookup_commit(result_sha1);
+ mark_common(commit, 0, 1);
+ retval = 0;
+ }
+ } while (ack);
flushes--;
}
}
-
+done:
packet_write(fd[1], "done\n");
if (verbose)
fprintf(stderr, "done\n");
- if (retval != 0)
+ if (retval != 0) {
+ multi_ack = 0;
flushes++;
- while (flushes) {
- flushes--;
- if (get_ack(fd[0], result_sha1)) {
+ }
+ while (flushes || multi_ack) {
+ int ack = get_ack(fd[0], result_sha1);
+ if (ack) {
if (verbose)
- fprintf(stderr, "got ack\n");
- return 0;
+ fprintf(stderr, "got ack (%d) %s\n", ack,
+ sha1_to_hex(result_sha1));
+ if (ack == 1)
+ return 0;
+ multi_ack = 1;
+ continue;
}
+ flushes--;
}
return retval;
}
@@ -344,6 +365,11 @@ static int fetch_pack(int fd[2], int nr_match, char **match)
pid_t pid;
get_remote_heads(fd[0], &ref, 0, NULL, 0);
+ if (server_supports("multi_ack")) {
+ if (verbose)
+ fprintf(stderr, "Server supports multi_ack\n");
+ multi_ack = 1;
+ }
if (!ref) {
packet_flush(fd[1]);
die("no matching remote head");