1 files changed, 52 insertions, 0 deletions
diff --git a/src/core/lib/iomgr/error_cfstream.cc b/src/core/lib/iomgr/error_cfstream.cc
new file mode 100644
index 0000000000..d7af8c377f
--- /dev/null
+++ b/src/core/lib/iomgr/error_cfstream.cc
@@ -0,0 +1,52 @@
+/*
+ *
+ * Copyright 2018 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 <grpc/support/port_platform.h>
+
+#ifdef GRPC_CFSTREAM
+#include <CoreFoundation/CoreFoundation.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/string_util.h>
+
+#include "src/core/lib/iomgr/error.h"
+
+#define MAX_ERROR_DESCRIPTION 256
+
+grpc_error* grpc_error_create_from_cferror(const char* file, int line,
+                                           void* arg, const char* custom_desc) {
+  CFErrorRef error = static_cast<CFErrorRef>(arg);
+  char buf_domain[MAX_ERROR_DESCRIPTION];
+  char buf_desc[MAX_ERROR_DESCRIPTION];
+  char* error_msg;
+  CFErrorDomain domain = CFErrorGetDomain((error));
+  CFIndex code = CFErrorGetCode((error));
+  CFStringRef desc = CFErrorCopyDescription((error));
+  CFStringGetCString(domain, buf_domain, MAX_ERROR_DESCRIPTION,
+                     kCFStringEncodingUTF8);
+  CFStringGetCString(desc, buf_desc, MAX_ERROR_DESCRIPTION,
+                     kCFStringEncodingUTF8);
+  gpr_asprintf(&error_msg, "%s (error domain:%s, code:%ld, description:%s)",
+               custom_desc, buf_domain, code, buf_desc);
+  CFRelease(desc);
+  grpc_error* return_error = grpc_error_create(
+      file, line, grpc_slice_from_copied_string(error_msg), NULL, 0);
+  gpr_free(error_msg);
+  return return_error;
+}
+#endif /* GRPC_CFSTREAM */