Added allocation tracking to the GTK+ backend.

unix/alloc.c

@@ -2,8 +2,28 @@
 #include <string.h>
 #include "uipriv_unix.h"
 
+static GPtrArray *allocations;
+
 void initAlloc(void)
 {
+	allocations = g_ptr_array_new();
+}
+
+static void uninitComplain(gpointer ptr, gpointer data)
+{
+	fprintf(stderr, "[libui] %p\n", ptr);
+}
+
+// TODO bring back the type names for this
+void uninitAlloc(void)
+{
+	if (allocations->len == 0) {
+		g_ptr_array_free(allocations, TRUE);
+		return;
+	}
+	fprintf(stderr, "[libui] leaked allocations:\n");
+	g_ptr_array_foreach(allocations, uninitComplain, NULL);
+	complain("either you left something around or there's a bug in libui");
 }
 
 #define UINT8(p) ((uint8_t *) (p))
@@ -18,6 +38,7 @@ void *uiAlloc(size_t size)
 
 	out = g_malloc0(sizeof (size_t) + size);
 	*SIZE(out) = size;
+	g_ptr_array_add(allocations, out);
 	return DATA(out);
 }
 
@@ -34,6 +55,9 @@ void *uiRealloc(void *p, size_t new)
 	if (new <= *s)
 		memset(((uint8_t *) DATA(out)) + *s, 0, new - *s);
 	*s = new;
+	if (g_ptr_array_remove(allocations, p) == FALSE)
+		complain("%p not found in allocations array in uiRealloc()", p);
+	g_ptr_array_add(allocations, out);
 	return DATA(out);
 }
 
@@ -42,4 +66,6 @@ void uiFree(void *p)
 	if (p == NULL)
 		complain("attempt to uiFree(NULL); there's a bug somewhere");
 	g_free(BASE(p));
+	if (g_ptr_array_remove(allocations, p) == FALSE)
+		complain("%p not found in allocations array in uiFree()", p);
 }

unix/main.c

@@ -21,7 +21,7 @@ const char *uiInit(uiInitOptions *o)
 void uiUninit(void)
 {
 	// TODO free menus
-	// TODO uninit alloc
+	uninitAlloc();
 }
 
 void uiFreeInitError(const char *err)

unix/uipriv_unix.h

@@ -17,3 +17,4 @@ extern void freeMenubar(GtkWidget *);
 
 // alloc.c
 extern void initAlloc(void);
+extern void uninitAlloc(void);