first commit

include/mupdf/fitz/track-usage.h

@@ -0,0 +1,35 @@
+#ifndef TRACK_USAGE_H
+#define TRACK_USAGE_H
+
+#ifdef TRACK_USAGE
+
+typedef struct track_usage_data_s {
+	int count;
+	const char *function;
+	int line;
+	const char *desc;
+	struct track_usage_data_s *next;
+} track_usage_data_t;
+
+#define TRACK_LABEL(A) \
+	do { \
+		static track_usage_data_t USAGE_DATA = { 0 };\
+		track_usage(&USAGE_DATA, __FILE__, __LINE__, A);\
+	} while (0)
+
+#define TRACK_FN() \
+	do { \
+		static track_usage_data_t USAGE_DATA = { 0 };\
+		track_usage(&USAGE_DATA, __FILE__, __LINE__, __FUNCTION__);\
+	} while (0)
+
+void track_usage(track_usage_data_t *data, const char *function, int line, const char *desc);
+
+#else
+
+#define TRACK_LABEL(A) do { } while (0)
+#define TRACK_FN() do { } while (0)
+
+#endif
+
+#endif