output/pulse: don't expose internal struct in public header

Provide _lock() and _unlock() to wrap all accesses from the mixer
plugin.

2 files changed, 49 insertions, 31 deletions

diff --git a/src/output/pulse_output_plugin.c b/src/output/pulse_output_plugin.c
index 62f27967..12b68fc3 100644
--- a/src/output/pulse_output_plugin.c
+++ b/src/output/pulse_output_plugin.c
@@ -31,11 +31,42 @@
 #include <pulse/introspect.h>
 #include <pulse/subscribe.h>
 #include <pulse/error.h>
+#include <pulse/version.h>
 
 #include <assert.h>
+#include <stddef.h>
 
 #define MPD_PULSE_NAME "Music Player Daemon"
 
+#if !defined(PA_CHECK_VERSION)
+/**
+ * This macro was implemented in libpulse 0.9.16.
+ */
+#define PA_CHECK_VERSION(a,b,c) false
+#endif
+
+struct pulse_output {
+	const char *name;
+	const char *server;
+	const char *sink;
+
+	struct pulse_mixer *mixer;
+
+	struct pa_threaded_mainloop *mainloop;
+	struct pa_context *context;
+	struct pa_stream *stream;
+
+	size_t writable;
+
+#if !PA_CHECK_VERSION(0,9,11)
+	/**
+	 * We need this variable because pa_stream_is_corked() wasn't
+	 * added before 0.9.11.
+	 */
+	bool pause;
+#endif
+};
+
 /**
  * The quark used for GError.domain.
  */
@@ -46,6 +77,18 @@ pulse_output_quark(void)
 }
 
 void
+pulse_output_lock(struct pulse_output *po)
+{
+	pa_threaded_mainloop_lock(po->mainloop);
+}
+
+void
+pulse_output_unlock(struct pulse_output *po)
+{
+	pa_threaded_mainloop_unlock(po->mainloop);
+}
+
+void
 pulse_output_set_mixer(struct pulse_output *po, struct pulse_mixer *pm)
 {
 	assert(po != NULL);
diff --git a/src/output/pulse_output_plugin.h b/src/output/pulse_output_plugin.h
index 2261175d..3f260238 100644
--- a/src/output/pulse_output_plugin.h
+++ b/src/output/pulse_output_plugin.h
@@ -21,43 +21,18 @@
 #define MPD_PULSE_OUTPUT_PLUGIN_H
 
 #include <stdbool.h>
-#include <stddef.h>
 
 #include <glib.h>
 
-#include <pulse/version.h>
-
-#if !defined(PA_CHECK_VERSION)
-/**
- * This macro was implemented in libpulse 0.9.16.
- */
-#define PA_CHECK_VERSION(a,b,c) false
-#endif
-
-struct pa_operation;
+struct pulse_output;
+struct pulse_mixer;
 struct pa_cvolume;
 
-struct pulse_output {
-	const char *name;
-	const char *server;
-	const char *sink;
-
-	struct pulse_mixer *mixer;
-
-	struct pa_threaded_mainloop *mainloop;
-	struct pa_context *context;
-	struct pa_stream *stream;
-
-	size_t writable;
+void
+pulse_output_lock(struct pulse_output *po);
 
-#if !PA_CHECK_VERSION(0,9,11)
-	/**
-	 * We need this variable because pa_stream_is_corked() wasn't
-	 * added before 0.9.11.
-	 */
-	bool pause;
-#endif
-};
+void
+pulse_output_unlock(struct pulse_output *po);
 
 void
 pulse_output_set_mixer(struct pulse_output *po, struct pulse_mixer *pm);