2 files changed, 21 insertions, 1 deletions
diff --git a/mojo/public/platform/native/system_thunks.cc b/mojo/public/platform/native/system_thunks.cc
index 3af7d58..fd14d48 100644
--- a/mojo/public/platform/native/system_thunks.cc
+++ b/mojo/public/platform/native/system_thunks.cc
@@ -187,6 +187,19 @@ MojoResult MojoGetReadyHandles(MojoHandle wait_set,
                                   signals_states);
 }
 
+MojoResult MojoWatch(MojoHandle handle,
+                     MojoHandleSignals signals,
+                     MojoWatchCallback callback,
+                     uintptr_t context) {
+  assert(g_thunks.Watch);
+  return g_thunks.Watch(handle, signals, callback, context);
+}
+
+MojoResult MojoCancelWatch(MojoHandle handle, uintptr_t context) {
+  assert(g_thunks.CancelWatch);
+  return g_thunks.CancelWatch(handle, context);
+}
+
 extern "C" THUNK_EXPORT size_t MojoSetSystemThunks(
     const MojoSystemThunks* system_thunks) {
   if (system_thunks->size >= sizeof(g_thunks))
diff --git a/mojo/public/platform/native/system_thunks.h b/mojo/public/platform/native/system_thunks.h
index 393ee40..b50970e 100644
--- a/mojo/public/platform/native/system_thunks.h
+++ b/mojo/public/platform/native/system_thunks.h
@@ -114,6 +114,11 @@ struct MojoSystemThunks {
                                 MojoHandle* handles,
                                 MojoResult* results,
                                 struct MojoHandleSignalsState* signals_states);
+  MojoResult (*Watch)(MojoHandle handle,
+                      MojoHandleSignals signals,
+                      MojoWatchCallback callback,
+                      uintptr_t context);
+  MojoResult (*CancelWatch)(MojoHandle handle, uintptr_t context);
 };
 #pragma pack(pop)
 
@@ -144,7 +149,9 @@ inline MojoSystemThunks MojoMakeSystemThunks() {
                                     MojoCreateWaitSet,
                                     MojoAddHandle,
                                     MojoRemoveHandle,
-                                    MojoGetReadyHandles};
+                                    MojoGetReadyHandles,
+                                    MojoWatch,
+                                    MojoCancelWatch};
   return system_thunks;
 }
 #endif