wait for zalsa thread to finish

Signed-off-by: falkTX <falktx@falktx.com>

tools/zalsa/alsathread.cc

@@ -45,7 +45,15 @@ Alsathread::Alsathread (Alsa_pcmi *alsadev, int mode) :
 
 Alsathread::~Alsathread (void)
 {
-    _alsadev->pcm_stop ();
+    if (_state != INIT)
+    {
+        _state = TERM;
+        thr_wait ();
+    }
+    else
+    {
+        _alsadev->pcm_stop ();
+    }
 }
 
 

tools/zalsa/pxthread.cc

@@ -76,3 +76,12 @@ void Pxthread::thr_main (void)
 {
 }
 
+
+void Pxthread::thr_wait (void)
+{
+    if (_thrid == 0)
+        return;
+    pthread_join (_thrid, NULL);
+    _thrid = 0;
+}
+

tools/zalsa/pxthread.h

@@ -42,6 +42,7 @@ public:
 
     virtual void thr_main (void) = 0;
     virtual int  thr_start (int policy, int priority, size_t stacksize = 0);
+    virtual void thr_wait (void);
 
 private: