made interrupt flag volatile

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16846 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/bin/playsound/playfile.cpp

@@ -19,7 +19,7 @@ sem_id finished = -1;
 BMediaTrack *playTrack;
 media_format playFormat;
 BSoundPlayer *sp = 0;
-bool interrupt = false;
+volatile bool interrupt = false;
 
 void
 play_buffer(void *cookie, void * buffer, size_t size, const media_raw_audio_format & format)

src/bin/playsound/playsound.cpp

@@ -26,7 +26,7 @@
 #include <getopt.h>
 #include <string.h>
 
-bool interrupted = false;
+volatile bool interrupted = false;
 
 static void
 keyb_int(int)

src/bin/playsound/playwav.cpp

@@ -17,7 +17,7 @@ thread_id reader = -1;
 sem_id finished = -1;
 int fd = -1;
 BSoundPlayer *sp = 0;
-bool interrupt = false;
+volatile bool interrupt = false;
 
 void
 play_buffer(void *cookie, void * buffer, size_t size, const media_raw_audio_format & format)
@@ -73,7 +73,7 @@ main(int argc, char *argv[])
 {
 	if (argc != 2) {
 		fprintf(stderr, "Usage:\n  %s <filename>\n", argv[0]);
-		fprintf(stderr, "This program only plays 44.1 kHz 16 bit stereo wav files.");
+		fprintf(stderr, "This program only plays 44.1 kHz 16 bit stereo wav files.\n");
 		return 1;
 	}