1 files changed, 93 insertions, 0 deletions
diff --git a/src/sink.c b/src/sink.c
new file mode 100644
index 0000000..5abff14
--- /dev/null
+++ b/src/sink.c
@@ -0,0 +1,93 @@
+#include <stdio.h>
+#include <pulse/pulseaudio.h>
+#include <ncurses.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "sink_input.h"
+#include "sink.h"
+
+/*
+ * return an initilized sink
+ */
+sink_info* sink_init(void) {
+	
+	sink_info* sink = (sink_info*) calloc(1, sizeof(sink_info));
+	
+	sink->name = NULL;
+	sink->input_counter = 0;
+	sink->input_max = 1;
+	sink->input_list = NULL;
+
+	sink->input_list = sink_input_list_init(sink->input_max);
+
+	return sink;
+}
+
+/*
+ * frees all components of a sink 
+ */
+void sink_clear(sink_info* sink) {
+
+	if (sink->name != NULL)
+		free(sink->name);
+
+	sink_input_list_clear(sink->input_list, &sink->input_max);
+
+	free(sink);
+	sink = NULL;
+}
+
+void sink_check(sink_info** sink) {
+
+	if ((*sink) == NULL)
+		(*sink) = (sink_info*) calloc(1, sizeof(sink_input_info));
+}
+/*
+ * check the list length and resize the list, if current position = max
+ */
+void sink_list_check(sink_info** sink_list, uint32_t* max, uint32_t counter) {
+	if (counter >= (*max)) {
+		(*max) *= 2;
+		sink_list = (sink_info**) realloc(sink_list, (*max) * sizeof(sink_info*));
+		for (int i = counter; i < (*max); ++i)
+			sink_list[i] = NULL;
+	}
+}
+
+void sink_check_input_list(sink_info* sink) {
+	
+	if (sink->input_counter >= sink->input_max)
+		sink_input_list_enlarge(sink->input_list, &sink->input_max, sink->input_counter);
+}
+
+sink_info** sink_list_init(uint32_t max) {
+
+	sink_info** sink_list = (sink_info**) calloc(max, sizeof(sink_info*));
+
+	for (int i = 0; i < max; ++i)
+		sink_list[i] = NULL;
+
+	return sink_list;
+}
+
+void sink_list_reset(sink_info** sink_list, uint32_t* counter) {
+
+	for (int i = 0; i < (*counter); ++i)
+		sink_list[i]->input_counter = 0;
+
+	(*counter) = 0;
+}
+
+void sink_list_clear(sink_info** sink_list, uint32_t* max, uint32_t* counter) {
+
+	for (int i = 0; i < (*max); ++i)
+		if (sink_list[i] != NULL)
+			sink_clear(sink_list[i]);
+
+	(*max) = 0;
+	(*counter) = 0;
+	
+	free(sink_list);
+	sink_list = NULL;
+}