+struct talloc_stackframe {
+ int talloc_stacksize;
+ int talloc_stack_arraysize;
+ TALLOC_CTX **talloc_stack;
+};
+
+/*
+ * In the single threaded case this is a pointer
+ * to the global talloc_stackframe. In the MT-case
+ * this is the pointer to the thread-specific key
+ * used to look up the per-thread talloc_stackframe
+ * pointer.
+ */
+
+static void *global_ts;
+
+/* Variable to ensure TLS value is only initialized once. */
+static smb_thread_once_t ts_initialized = SMB_THREAD_ONCE_INIT;
+
+static void talloc_stackframe_init(void * unused)
+{
+ if (SMB_THREAD_CREATE_TLS("talloc_stackframe", global_ts)) {
+ smb_panic("talloc_stackframe_init create_tls failed");
+ }
+}
+
+static struct talloc_stackframe *talloc_stackframe_create(void)
+{
+#if defined(PARANOID_MALLOC_CHECKER)
+#ifdef calloc
+#undef calloc
+#endif
+#endif
+ struct talloc_stackframe *ts = (struct talloc_stackframe *)calloc(
+ 1, sizeof(struct talloc_stackframe));
+#if defined(PARANOID_MALLOC_CHECKER)
+#define calloc(n, s) __ERROR_DONT_USE_MALLOC_DIRECTLY
+#endif
+
+ if (!ts) {
+ smb_panic("talloc_stackframe_init malloc failed");
+ }
+
+ SMB_THREAD_ONCE(&ts_initialized, talloc_stackframe_init, NULL);
+
+ if (SMB_THREAD_SET_TLS(global_ts, ts)) {
+ smb_panic("talloc_stackframe_init set_tls failed");
+ }
+ return ts;
+}