"Implement" OSSpecificSynchronizationContext icalls.

Author: Josh Peterson

mono/metadata/icall-def.h

@@ -1031,6 +1031,10 @@ HANDLES(NATIVEC_3, "OpenEvent_icall", ves_icall_System_Threading_Events_OpenEven
 NOHANDLES(ICALL(NATIVEC_4, "ResetEvent_internal",  ves_icall_System_Threading_Events_ResetEvent_internal))
 NOHANDLES(ICALL(NATIVEC_5, "SetEvent_internal",    ves_icall_System_Threading_Events_SetEvent_internal))
 
+ICALL_TYPE(OSSYNCCONTEXT, "System.Threading.OSSpecificSynchronizationContext", OSSYNCCONTEXT_1)
+HANDLES(ICALL(OSSYNCCONTEXT_1, "GetOSContext", ves_icall_System_Threading_OSSpecificSynchronizationContext_GetOSContext))
+ICALL(OSSYNCCONTEXT_2, "PostInternal", ves_icall_System_Threading_OSSpecificSynchronizationContext_PostInternal)
+
 ICALL_TYPE(SEMA, "System.Threading.Semaphore", SEMA_1)
 NOHANDLES(ICALL(SEMA_1, "CreateSemaphore_icall", ves_icall_System_Threading_Semaphore_CreateSemaphore_icall))
 NOHANDLES(ICALL(SEMA_2, "OpenSemaphore_icall", ves_icall_System_Threading_Semaphore_OpenSemaphore_icall))

mono/metadata/icall.c

@@ -9850,3 +9850,16 @@ ves_icall_System_Net_NetworkInformation_LinuxNetworkChange_CloseNLSocket (gpoint
 #undef ICALL
 #undef NOHANDLES
 #undef MONO_HANDLE_REGISTER_ICALL
+
+MonoObjectHandle
+ves_icall_System_Threading_OSSpecificSynchronizationContext_GetOSContext ()
+{
+	return NULL_HANDLE;
+}
+
+void
+ves_icall_System_Threading_OSSpecificSynchronizationContext_PostInternal (gpointer callback, gpointer arg)
+{
+	/* This isn't actually reachable since ves_icall_System_Threading_OSSpecificSynchronizationContext_GetOSContext always returns NULL */
+	mono_set_pending_exception (mono_get_exception_not_implemented ("System.Threading.InteropServices.OSSpecificSynchronizationContext.PostInternal internal call is not implemented."));
+}

mono/metadata/threads-types.h

@@ -597,4 +597,10 @@ mono_interlocked_unlock(void) {
 }
 #endif
 
+MonoObjectHandle
+ves_icall_System_Threading_OSSpecificSynchronizationContext_GetOSContext ();
+
+void
+ves_icall_System_Threading_OSSpecificSynchronizationContext_PostInternal (gpointer callback, gpointer arg);
+
 #endif /* _MONO_METADATA_THREADS_TYPES_H_ */