1 files changed, 98 insertions, 0 deletions
diff --git a/src/core/lib/transport/status_conversion.cc b/src/core/lib/transport/status_conversion.cc
new file mode 100644
index 0000000000..46cba4292b
--- /dev/null
+++ b/src/core/lib/transport/status_conversion.cc
@@ -0,0 +1,98 @@
+/*
+ *
+ * Copyright 2015 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include "src/core/lib/transport/status_conversion.h"
+
+grpc_http2_error_code grpc_status_to_http2_error(grpc_status_code status) {
+  switch (status) {
+    case GRPC_STATUS_OK:
+      return GRPC_HTTP2_NO_ERROR;
+    case GRPC_STATUS_CANCELLED:
+      return GRPC_HTTP2_CANCEL;
+    case GRPC_STATUS_DEADLINE_EXCEEDED:
+      return GRPC_HTTP2_CANCEL;
+    case GRPC_STATUS_RESOURCE_EXHAUSTED:
+      return GRPC_HTTP2_ENHANCE_YOUR_CALM;
+    case GRPC_STATUS_PERMISSION_DENIED:
+      return GRPC_HTTP2_INADEQUATE_SECURITY;
+    case GRPC_STATUS_UNAVAILABLE:
+      return GRPC_HTTP2_REFUSED_STREAM;
+    default:
+      return GRPC_HTTP2_INTERNAL_ERROR;
+  }
+}
+
+grpc_status_code grpc_http2_error_to_grpc_status(grpc_http2_error_code error,
+                                                 grpc_millis deadline) {
+  switch (error) {
+    case GRPC_HTTP2_NO_ERROR:
+      /* should never be received */
+      return GRPC_STATUS_INTERNAL;
+    case GRPC_HTTP2_CANCEL:
+      /* http2 cancel translates to STATUS_CANCELLED iff deadline hasn't been
+       * exceeded */
+      return grpc_core::ExecCtx::Get()->Now() > deadline
+                 ? GRPC_STATUS_DEADLINE_EXCEEDED
+                 : GRPC_STATUS_CANCELLED;
+    case GRPC_HTTP2_ENHANCE_YOUR_CALM:
+      return GRPC_STATUS_RESOURCE_EXHAUSTED;
+    case GRPC_HTTP2_INADEQUATE_SECURITY:
+      return GRPC_STATUS_PERMISSION_DENIED;
+    case GRPC_HTTP2_REFUSED_STREAM:
+      return GRPC_STATUS_UNAVAILABLE;
+    default:
+      return GRPC_STATUS_INTERNAL;
+  }
+}
+
+grpc_status_code grpc_http2_status_to_grpc_status(int status) {
+  switch (status) {
+    /* these HTTP2 status codes are called out explicitly in status.proto */
+    case 200:
+      return GRPC_STATUS_OK;
+    case 400:
+      return GRPC_STATUS_INVALID_ARGUMENT;
+    case 401:
+      return GRPC_STATUS_UNAUTHENTICATED;
+    case 403:
+      return GRPC_STATUS_PERMISSION_DENIED;
+    case 404:
+      return GRPC_STATUS_NOT_FOUND;
+    case 409:
+      return GRPC_STATUS_ABORTED;
+    case 412:
+      return GRPC_STATUS_FAILED_PRECONDITION;
+    case 429:
+      return GRPC_STATUS_RESOURCE_EXHAUSTED;
+    case 499:
+      return GRPC_STATUS_CANCELLED;
+    case 500:
+      return GRPC_STATUS_UNKNOWN;
+    case 501:
+      return GRPC_STATUS_UNIMPLEMENTED;
+    case 503:
+      return GRPC_STATUS_UNAVAILABLE;
+    case 504:
+      return GRPC_STATUS_DEADLINE_EXCEEDED;
+    /* everything else is unknown */
+    default:
+      return GRPC_STATUS_UNKNOWN;
+  }
+}
+
+int grpc_status_to_http2_status(grpc_status_code status) { return 200; }