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context: restart graph recalculation when something changed

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When we were busy with the graph recalculation and something changed,
restart the graph state change to get the new change applied.

For example, when we start a node and it has a max-quantum set, we
need to restart our calculation with the new quantum limits.
This commit is contained in:
Wim Taymans 2021-03-09 15:48:47 +01:00
parent 63a34f4f84
commit 0881d5b881
1 changed files with 11 additions and 2 deletions
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13
src/pipewire/context.c
View file

@ -65,7 +65,8 @@
struct impl {
struct pw_context this;
struct spa_handle *dbus_handle;
unsigned int recalc;
unsigned int recalc:1;
unsigned int recalc_pending:1;
};
@ -918,9 +919,12 @@ int pw_context_recalc_graph(struct pw_context *context, const char *reason)
pw_log_info(NAME" %p: busy:%d reason:%s", context, impl->recalc, reason);
if (impl->recalc)
if (impl->recalc) {
impl->recalc_pending = true;
return -EBUSY;
}
again:
impl->recalc = true;
/* start from all drivers and group all nodes that are linked
@ -1041,6 +1045,11 @@ int pw_context_recalc_graph(struct pw_context *context, const char *reason)
ensure_state(n, running);
}
impl->recalc = false;
if (impl->recalc_pending) {
impl->recalc_pending = false;
goto again;
}
return 0;
}