Add getter for GC threshold

Author: KaruroChori

quickjs.c

@@ -1767,6 +1767,10 @@ void JS_SetDumpFlags(JSRuntime *rt, uint64_t flags)
     rt->dump_flags = flags;
 }
 
+size_t JS_GetGCThreshold(JSRuntime *rt) {
+    return rt->malloc_gc_threshold;
+}
+
 /* use -1 to disable automatic GC */
 void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold)
 {

quickjs.h

@@ -305,6 +305,7 @@ JS_EXTERN void JS_SetRuntimeInfo(JSRuntime *rt, const char *info);
 /* use 0 to disable memory limit */
 JS_EXTERN void JS_SetMemoryLimit(JSRuntime *rt, size_t limit);
 JS_EXTERN void JS_SetDumpFlags(JSRuntime *rt, uint64_t flags);
+JS_EXTERN size_t JS_GetGCThreshold(JSRuntime *rt);
 JS_EXTERN void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold);
 /* use 0 to disable maximum stack size check */
 JS_EXTERN void JS_SetMaxStackSize(JSRuntime *rt, size_t stack_size);