File ad541910fe60940c6665f50ede3476b9a9117dce.patch of Package jack

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File ad541910fe60940c6665f50ede3476b9a9117dce.patch of Package jack (Revision e58452965c254bfaadd6948f06743a64)

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From ad541910fe60940c6665f50ede3476b9a9117dce Mon Sep 17 00:00:00 2001
From: StefanBruens <stefan.bruens@rwth-aachen.de>
Date: Wed, 13 Dec 2023 05:48:51 +0100
Subject: [PATCH] jackdbus: Stop recurrent wakeups when no save is pending

Most processing happens as a result of an incoming
DBus event. The only case when a timed processing
is needed is due to an pending save.

Instead of implementing a full event loop just run the
timed loop while a save is pending, and use an
infinite timeout otherwise.
---
 dbus/controller.c | 7 ++++---
 dbus/controller.h | 2 +-
 dbus/jackdbus.c   | 6 ++++--
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/dbus/controller.c b/dbus/controller.c
index f1639b610..7b35de1bb 100644
--- a/dbus/controller.c
+++ b/dbus/controller.c
@@ -783,7 +783,7 @@ jack_controller_destroy(
     free(controller_ptr);
 }
 
-void
+bool
 jack_controller_run(
     void * context)
 {
@@ -791,7 +791,7 @@ jack_controller_run(
 
     if (controller_ptr->pending_save == 0)
     {
-        return;
+        return false;
     }
 
     if ((ut = uptime()) < 0)
@@ -800,11 +800,12 @@ jack_controller_run(
     }
     else if (ut < controller_ptr->pending_save + 2) /* delay save by two seconds */
     {
-        return;
+        return true;
     }
 
     controller_ptr->pending_save = 0;
     jack_controller_settings_save_auto(controller_ptr);
+    return false;
 }
 
 #undef controller_ptr
diff --git a/dbus/controller.h b/dbus/controller.h
index 1db79ecdf..e6a5cd7cd 100644
--- a/dbus/controller.h
+++ b/dbus/controller.h
@@ -24,7 +24,7 @@ void *
 jack_controller_create(
     DBusConnection *connection);
 
-void
+bool
 jack_controller_run(
     void *controller_ptr);
 
diff --git a/dbus/jackdbus.c b/dbus/jackdbus.c
index 5f2000a37..2bb1a1068 100644
--- a/dbus/jackdbus.c
+++ b/dbus/jackdbus.c
@@ -854,6 +854,7 @@ main (int argc, char **argv)
     void *controller_ptr;
     struct stat st;
     char timestamp_str[26];
+    bool save_pending;
 
     st.st_mtime = 0;
     stat(argv[0], &st);
@@ -947,9 +948,10 @@ main (int argc, char **argv)
     jack_info("Listening for D-Bus messages");
 
     g_exit_command = FALSE;
-    while (!g_exit_command && dbus_connection_read_write_dispatch (g_connection, 200))
+    save_pending = false;
+    while (!g_exit_command && dbus_connection_read_write_dispatch (g_connection, (save_pending ? 200 : -1)))
     {
-        jack_controller_run(controller_ptr);
+        save_pending = jack_controller_run(controller_ptr);
     }
 
     jack_controller_destroy(controller_ptr);

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File ad541910fe60940c6665f50ede3476b9a9117dce.patch of Package jack (Revision e58452965c254bfaadd6948f06743a64)

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