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/*
*
* 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_IOMGR_ERROR_INTERNAL_H
#define GRPC_CORE_LIB_IOMGR_ERROR_INTERNAL_H
#include <grpc/support/port_platform.h>
#include <inttypes.h>
#include <stdbool.h> // TODO, do we need this?
#include <grpc/support/sync.h>
#include "src/core/lib/iomgr/error.h"
typedef struct grpc_linked_error grpc_linked_error;
struct grpc_linked_error {
grpc_error* err;
uint8_t next;
};
// c core representation of an error. See error.h for high level description of
// this object.
struct grpc_error {
// All atomics in grpc_error must be stored in this nested struct. The rest of
// the object is memcpy-ed in bulk in copy_and_unref.
struct atomics {
gpr_refcount refs;
gpr_atm error_string;
} atomics;
// These arrays index into dynamic arena at the bottom of the struct.
// UINT8_MAX is used as a sentinel value.
uint8_t ints[GRPC_ERROR_INT_MAX];
uint8_t strs[GRPC_ERROR_STR_MAX];
uint8_t times[GRPC_ERROR_TIME_MAX];
// The child errors are stored in the arena, but are effectively a linked list
// structure, since they are contained withing grpc_linked_error objects.
uint8_t first_err;
uint8_t last_err;
// The arena is dynamically reallocated with a grow factor of 1.5.
uint8_t arena_size;
uint8_t arena_capacity;
intptr_t arena[0];
};
#endif /* GRPC_CORE_LIB_IOMGR_ERROR_INTERNAL_H */
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