Fix metal issue (#6361)

* Fix metal issue

- implement waitForFences for metal backend
- fix a bug that it misses clear the entryPoints when initializing
  RootShaderObject

* format

---------

Co-authored-by: Yong He <yonghe@outlook.com>

1 files changed, 10 insertions, 1 deletions

diff --git a/tools/gfx/metal/metal-device.cpp b/tools/gfx/metal/metal-device.cpp
index 623cd8a81..e20d3ea3b 100644
--- a/tools/gfx/metal/metal-device.cpp
+++ b/tools/gfx/metal/metal-device.cpp
@@ -875,7 +875,16 @@ Result DeviceImpl::waitForFences(
     bool waitForAll,
     uint64_t timeout)
 {
-    return SLANG_E_NOT_IMPLEMENTED;
+    // return SLANG_E_NOT_IMPLEMENTED;
+    for (GfxCount i = 0; i < fenceCount; ++i)
+    {
+        FenceImpl* fenceImpl = static_cast<FenceImpl*>(fences[i]);
+        if (!fenceImpl->waitForFence(fenceValues[i], timeout))
+        {
+            return SLANG_FAIL;
+        }
+    }
+    return SLANG_OK;
 }
 
 } // namespace metal