twn_util.c: add file_read()

src/twn_loop.c

@@ -754,6 +754,11 @@ static bool try_mounting_root_pack(char *path) {
 }
 
 
+static void garbage_collect(void) {
+    file_read_garbage_collect();
+}
+
+
 int enter_loop(int argc, char **argv) {
     profile_start("startup");
 
@@ -866,6 +871,7 @@ int enter_loop(int argc, char **argv) {
         /* dispatch all filewatch driven events, such as game object and asset pack reload */
         filewatch_poll();
         main_loop();
+        garbage_collect();
     }
 
     if (ctx.game.debug)

src/twn_util.c

@@ -154,6 +154,24 @@ char *file_to_str(const char *path) {
     return str_out;
 }
 
+static char **read_files;
+
+char const *file_read(char const *file) {
+    char *s = file_to_str(file);
+
+    if (s) arrpush(read_files, s);
+
+    return s;
+}
+
+
+void file_read_garbage_collect(void) {
+    for (size_t i = 0; i < arrlenu(read_files); ++i)
+        SDL_free(read_files[i]);
+    arrfree(read_files);
+    read_files = NULL;
+}
+
 
 bool file_exists(const char *path) {
     return PHYSFS_exists(path);

src/twn_util_c.h

@@ -29,6 +29,8 @@ char *expand_asterisk(const char *mask, const char *to);
 
 void profile_list_stats(void);
 
+void file_read_garbage_collect(void);
+
 /* http://www.azillionmonkeys.com/qed/sqroot.html */
 static inline float fast_sqrt(float x)
 {