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[PATCH v14 07/21] index-helper: add --detach

From
David Turner <novalis@novalis.org>
Date
Jul 3, 2016, 07:57 UTC
Message-ID
<1467532693-20017-8-git-send-email-novalis@novalis.org>
In-Reply-To
<1467532693-20017-1-git-send-email-novalis@novalis.org>
From: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>

We detach after creating and opening the socket, because otherwise we might return control to the shell before index-helper is ready to accept commands. This might lead to flaky tests.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: David Turner <dturner@twopensource.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 Documentation/git-index-helper.txt | 3 +++
 index-helper.c                     | 9 +++++++--
 2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/Documentation/git-index-helper.txt b/Documentation/git-index-helper.txt
index ca5a9de..228b1df 100644
--- a/Documentation/git-index-helper.txt
+++ b/Documentation/git-index-helper.txt
@@ -34,6 +34,9 @@ OPTIONS
 	for reading an index, but because it will happen in the
 	background, it's not noticable. `--strict` is enabled by default.
 
+--detach::
+	Detach from the shell.
+
 NOTES
 -----
 
diff --git a/index-helper.c b/index-helper.c
index 163586a..eca8ae9 100644
--- a/index-helper.c
+++ b/index-helper.c
@@ -17,7 +17,7 @@ struct shm {
 
 static struct shm shm_index;
 static struct shm shm_base_index;
-static int to_verify = 1;
+static int daemonized, to_verify = 1;
 
 static void release_index_shm(struct shm *is)
 {
@@ -36,6 +36,8 @@ static void cleanup_shm(void)
 
 static void cleanup(void)
 {
+	if (daemonized)
+		return;
 	unlink(git_path("index-helper.sock"));
 	cleanup_shm();
 }
@@ -264,7 +266,7 @@ static const char * const usage_text[] = {
 int main(int argc, char **argv)
 {
 	const char *prefix;
-	int idle_in_seconds = 600;
+	int idle_in_seconds = 600, detach = 0;
 	int fd;
 	struct strbuf socket_path = STRBUF_INIT;
 	struct option options[] = {
@@ -272,6 +274,7 @@ int main(int argc, char **argv)
 			    N_("exit if not used after some seconds")),
 		OPT_BOOL(0, "strict", &to_verify,
 			 N_("verify shared memory after creating")),
+		OPT_BOOL(0, "detach", &detach, N_("detach the process")),
 		OPT_END()
 	};
 
@@ -299,6 +302,8 @@ int main(int argc, char **argv)
 		die("--exit-after value must be less than %d seconds",
 		    INT_MAX / 1000);
 
+	if (detach && daemonize(&daemonized))
+		die_errno(_("unable to detach"));
 	loop(fd, idle_in_seconds);
 
 	close(fd);
-- 
1.9.1
Previous: David TurnerNext: David Turner
Message 12 of 30 in “index-helper/watchman”
  1. 00/21 index-helper/watchmanDavid Turner, Jul 3, 2016
  2. 03/21 unix-socket.c: add stub implementation when unix sockets are not supportedDavid Turner, Jul 3, 2016
  3. 05/21 index-helper: add --strictDavid Turner, Jul 3, 2016
  4. 06/21 daemonize(): set a flag before exiting the main processDavid Turner, Jul 3, 2016
  5. 02/21 pkt-line: add gentle version of packet_writeDavid Turner, Jul 3, 2016
  6. 01/21 read-cache: allow to keep mmap'd memory after readingDavid Turner, Jul 3, 2016
  7. 04/21 index-helper: new daemon for caching index and related stuffDavid Turner, Jul 3, 2016
  8. 16/21 index-helper: don't run if already runningDavid Turner, Jul 3, 2016
  9. 17/21 index-helper: autorun modeDavid Turner, Jul 3, 2016
  10. 18/21 index-helper: optionally automatically runDavid Turner, Jul 3, 2016
  11. 19/21 trace: measure where the time is spent in the index-heavy operationsDavid Turner, Jul 3, 2016
  12. 07/21 index-helper: add --detachDavid Turner, Jul 3, 2016
  13. 13/21 unpack-trees: preserve index extensionsDavid Turner, Jul 3, 2016
  14. 15/21 index-helper: kill modeDavid Turner, Jul 3, 2016
  15. Johannes SchindelinJul 6, 2016
  16. Duy NguyenJul 6, 2016
  17. 12/21 update-index: enable/disable watchman supportDavid Turner, Jul 3, 2016
  18. 14/21 watchman: add a config option to enable the extensionDavid Turner, Jul 3, 2016
  19. 09/21 read-cache: add watchman 'WAMA' extensionDavid Turner, Jul 3, 2016
  20. 11/21 index-helper: use watchman to avoid refreshing index with lstat()David Turner, Jul 3, 2016
  21. 10/21 watchman: support watchman to reduce index refresh costDavid Turner, Jul 3, 2016
  22. 08/21 index-helper: log warningsDavid Turner, Jul 3, 2016
  23. Johannes SchindelinJul 3, 2016
  24. Johannes SchindelinJul 4, 2016
  25. Junio C HamanoJul 6, 2016
  26. Duy NguyenJul 12, 2016
  27. David TurnerJul 13, 2016
  28. Duy NguyenJul 14, 2016
  29. Duy NguyenJul 14, 2016
  30. Ben PeartJul 15, 2016

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