[threads] Allow resetting the name of a threadpool thread (#4350)

[mono.git] / mono / metadata / threads.c

diff --git a/mono/metadata/threads.c b/mono/metadata/threads.c
index bbbb9f69b88052bd30133aac0b262a525a511911..fe4365c29ba9a33999ae99de23761190997aa13b 100644 (file)
--- a/mono/metadata/threads.c
+++ b/mono/metadata/threads.c
@@ -41,7 +41,6 @@
 #include <mono/utils/mono-tls.h>
 #include <mono/utils/atomic.h>
 #include <mono/utils/mono-memory-model.h>
-#include <mono/utils/mono-threads-coop.h>
 #include <mono/utils/mono-error-internals.h>
 #include <mono/utils/os-event.h>
 #include <mono/utils/mono-threads-debug.h>
@@ -49,7 +48,6 @@
 #include <mono/metadata/w32event.h>
 #include <mono/metadata/w32mutex.h>
 
-#include <mono/metadata/gc-internals.h>
 #include <mono/metadata/reflection-internals.h>
 #include <mono/metadata/abi-details.h>
 #include <mono/metadata/w32error.h>
@@ -208,7 +206,7 @@ static gboolean shutting_down = FALSE;
 static gint32 managed_thread_id_counter = 0;
 
 /* Class lazy loading functions */
-static GENERATE_GET_CLASS_WITH_CACHE (appdomain_unloaded_exception, System, AppDomainUnloadedException)
+static GENERATE_GET_CLASS_WITH_CACHE (appdomain_unloaded_exception, "System", "AppDomainUnloadedException")
 
 static void
 mono_threads_lock (void)
@@ -1571,13 +1569,15 @@ ves_icall_System_Threading_Thread_GetName_internal (MonoInternalThread *this_obj
 }
 
 void 
-mono_thread_set_name_internal (MonoInternalThread *this_obj, MonoString *name, gboolean permanent, MonoError *error)
+mono_thread_set_name_internal (MonoInternalThread *this_obj, MonoString *name, gboolean permanent, gboolean reset, MonoError *error)
 {
        LOCK_THREAD (this_obj);
 
        mono_error_init (error);
 
-       if ((this_obj->flags & MONO_THREAD_FLAG_NAME_SET)) {
+       if (reset) {
+               this_obj->flags &= ~MONO_THREAD_FLAG_NAME_SET;
+       } else if (this_obj->flags & MONO_THREAD_FLAG_NAME_SET) {
                UNLOCK_THREAD (this_obj);
                
                mono_error_set_invalid_operation (error, "Thread.Name can only be set once.");
@@ -1588,8 +1588,7 @@ mono_thread_set_name_internal (MonoInternalThread *this_obj, MonoString *name, g
                this_obj->name_len = 0;
        }
        if (name) {
-               this_obj->name = g_new (gunichar2, mono_string_length (name));
-               memcpy (this_obj->name, mono_string_chars (name), mono_string_length (name) * 2);
+               this_obj->name = g_memdup (mono_string_chars (name), mono_string_length (name) * sizeof (gunichar2));
                this_obj->name_len = mono_string_length (name);
 
                if (permanent)
@@ -1614,7 +1613,7 @@ void
 ves_icall_System_Threading_Thread_SetName_internal (MonoInternalThread *this_obj, MonoString *name)
 {
        MonoError error;
-       mono_thread_set_name_internal (this_obj, name, TRUE, &error);
+       mono_thread_set_name_internal (this_obj, name, TRUE, FALSE, &error);
        mono_error_set_pending_exception (&error);
 }
 
@@ -5087,7 +5086,9 @@ mono_threads_join_threads (void)
                        if (thread != pthread_self ()) {
                                MONO_ENTER_GC_SAFE;
                                /* This shouldn't block */
+                               mono_threads_join_lock ();
                                mono_native_thread_join (thread);
+                               mono_threads_join_unlock ();
                                MONO_EXIT_GC_SAFE;
                        }
                } else {