| /* |
| * |
| * 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 */ |