Tweak names and fix preexisting leak under low memory.

Commit migrated from https://github.com/mono/mono/commit/a55da2a9036199c5c18442f465c4fd007c136e62

diff --git a/src/mono/mono/metadata/threads.c b/src/mono/mono/metadata/threads.c
index 79dae03..caa28c9 100644 (file)
--- a/src/mono/mono/metadata/threads.c
+++ b/src/mono/mono/metadata/threads.c
@@ -4097,6 +4097,11 @@ mono_threads_perform_thread_dump (void)
 void
 ves_icall_System_Threading_Thread_GetStackTraces (MonoArrayHandleOut out_threads_handle, MonoArrayHandleOut out_stack_frames_handle, MonoError *error)
 {
+       MONO_HANDLE_ASSIGN_RAW (out_threads_handle, NULL);
+       MONO_HANDLE_ASSIGN_RAW (out_stack_frames_handle, NULL);
+
+       guint32 handle = 0;
+
        MonoStackFrameHandle stack_frame_handle = MONO_HANDLE_NEW (MonoStackFrame, NULL);
        MonoReflectionMethodHandle reflection_method_handle = MONO_HANDLE_NEW (MonoReflectionMethod, NULL);
        MonoStringHandle filename_handle = MONO_HANDLE_NEW (MonoString, NULL);
@@ -4130,7 +4135,8 @@ ves_icall_System_Threading_Thread_GetStackTraces (MonoArrayHandleOut out_threads
 
        for (tindex = 0; tindex < nthreads; ++tindex) {
 
-               guint32 handle = thread_array [tindex];
+               mono_gchandle_free_internal (handle);
+               handle = thread_array [tindex];
                MonoInternalThread *thread = (MonoInternalThread *) mono_gchandle_get_target_internal (handle);
 
                MonoArray *thread_frames;
@@ -4194,9 +4200,11 @@ ves_icall_System_Threading_Thread_GetStackTraces (MonoArrayHandleOut out_threads
                }
 
                mono_gchandle_free_internal (handle);
+               handle = 0;
        }
 
 leave:
+       mono_gchandle_free_internal (handle);
        g_free (ud.frames);
 }