1 files changed, 59 insertions, 0 deletions
diff --git a/src/dtmf_scheduler.c b/src/dtmf_scheduler.c
new file mode 100644
index 0000000..26dc090
--- /dev/null
+++ b/src/dtmf_scheduler.c
@@ -0,0 +1,59 @@
+/*
+ * (C) 2012 by Holger Hans Peter Freyther
+ * (C) 2012 by On-Waves
+ * All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "dtmf_scheduler.h"
+#include <string.h>
+#include <stdio.h>
+
+void dtmf_state_init(struct dtmf_state *state)
+{
+	memset(state, 0, sizeof(*state));
+}
+
+int dtmf_state_add(struct dtmf_state *state, char tone)
+{
+	/* we would override the head */
+	if (state->size == sizeof(state->tones))
+		return -1;
+
+	state->tones[state->size++] = tone;
+	return 0;
+}
+
+void dtmf_state_get_pending(struct dtmf_state *state, char *tones)
+{
+	int pos;
+
+	for (pos = 0; pos < state->size; ++pos)
+		tones[pos] = state->tones[pos];
+
+	/* consume everything up to the tail */
+	state->size = 0;
+
+	/* remember that we play things */
+	if (pos > 0)
+		state->playing = 1;
+	tones[pos] = '\0';
+}
+
+void dtmf_state_played(struct dtmf_state *state)
+{
+	state->playing = 0;
+}