2 files changed, 47 insertions, 0 deletions
diff --git a/include/wlr/common/list.h b/include/wlr/common/list.h
new file mode 100644
index 00000000..2bc82570
--- /dev/null
+++ b/include/wlr/common/list.h
@@ -0,0 +1,31 @@
+#ifndef _WLR_LIST_H
+#define _WLR_LIST_H
+
+#include <stddef.h>
+
+typedef struct {
+	size_t capacity;
+	size_t length;
+	void **items;
+} list_t;
+
+list_t *list_create(void);
+void list_free(list_t *list);
+void list_foreach(list_t *list, void (*callback)(void* item));
+void list_add(list_t *list, void *item);
+void list_push(list_t *list, void *item);
+void list_insert(list_t *list, size_t index, void *item);
+void list_del(list_t *list, size_t index);
+void *list_pop(list_t *list);
+void *list_peek(list_t *list);
+void list_cat(list_t *list, list_t *source);
+// See qsort. Remember to use *_qsort functions as compare functions,
+// because they dereference the left and right arguments first!
+void list_qsort(list_t *list, int compare(const void *left, const void *right));
+// Return index for first item in list that returns 0 for given compare
+// function or -1 if none matches.
+int list_seq_find(list_t *list,
+		int compare(const void *item, const void *cmp_to),
+		const void *cmp_to);
+
+#endif
diff --git a/include/wlr/common/log.h b/include/wlr/common/log.h
new file mode 100644
index 00000000..5b4d5a53
--- /dev/null
+++ b/include/wlr/common/log.h
@@ -0,0 +1,16 @@
+#ifndef _WLR_COMMON_LOG_H
+#define _WLR_COMMON_LOG_H
+#include <stdbool.h>
+
+typedef enum {
+	L_SILENT = 0,
+	L_ERROR = 1,
+	L_INFO = 2,
+	L_DEBUG = 3,
+} log_importance_t;
+
+typedef void (*log_callback_t)(log_importance_t importance, const char *fmt, va_list args);
+
+void init_log(log_callback_t callback);
+
+#endif