From 076adeb0aa24e9bdc677435ddb6e444db58d5436 Mon Sep 17 00:00:00 2001
From: Simon Howard
Date: Sun, 30 Aug 2009 12:07:04 +0000
Subject: Add method to clear all existing callbacks.

Subversion-branch: /branches/opl-branch
Subversion-revision: 1642
---
 opl/opl_sdl.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'opl/opl_sdl.c')

diff --git a/opl/opl_sdl.c b/opl/opl_sdl.c
index b9d83385..ffbe6820 100644
--- a/opl/opl_sdl.c
+++ b/opl/opl_sdl.c
@@ -374,6 +374,13 @@ static void OPL_SDL_SetCallback(unsigned int ms,
     SDL_UnlockMutex(callback_queue_mutex);
 }
 
+static void OPL_SDL_ClearCallbacks(void)
+{
+    SDL_LockMutex(callback_queue_mutex);
+    OPL_Queue_Clear(callback_queue);
+    SDL_UnlockMutex(callback_queue_mutex);
+}
+
 static void OPL_SDL_Lock(void)
 {
     SDL_LockMutex(callback_mutex);
@@ -392,6 +399,7 @@ opl_driver_t opl_sdl_driver =
     OPL_SDL_PortRead,
     OPL_SDL_PortWrite,
     OPL_SDL_SetCallback,
+    OPL_SDL_ClearCallbacks,
     OPL_SDL_Lock,
     OPL_SDL_Unlock
 };
-- 
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