src/core/lib/transport/error_utils.h

/*
 *
 * Copyright 2016 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.
 *
 */

#ifndef GRPC_CORE_LIB_TRANSPORT_ERROR_UTILS_H
#define GRPC_CORE_LIB_TRANSPORT_ERROR_UTILS_H

#include "src/core/lib/iomgr/error.h"
#include "src/core/lib/iomgr/exec_ctx.h"
#include "src/core/lib/transport/http2_errors.h"

#ifdef __cplusplus
extern "C" {
#endif

/// A utility function to get the status code and message to be returned
/// to the application.  If not set in the top-level message, looks
/// through child errors until it finds the first one with these attributes.
/// All attributes are pulled from the same child error. If any of the
/// attributes (code, msg, http_status) are unneeded, they can be passed as
/// NULL.
void grpc_error_get_status(grpc_exec_ctx *exec_ctx, grpc_error *error,
                           grpc_millis deadline, grpc_status_code *code,
                           grpc_slice *slice,
                           grpc_http2_error_code *http_status);

/// A utility function to check whether there is a clear status code that
/// doesn't need to be guessed in \a error. This means that \a error or some
/// child has GRPC_ERROR_INT_GRPC_STATUS set, or that it is GRPC_ERROR_NONE or
/// GRPC_ERROR_CANCELLED
bool grpc_error_has_clear_grpc_status(grpc_error *error);

#ifdef __cplusplus
}
#endif

#endif /* GRPC_CORE_LIB_TRANSPORT_ERROR_UTILS_H */