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/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef GRPC_CORE_LIB_IOMGR_ERROR_INTERNAL_H
#define GRPC_CORE_LIB_IOMGR_ERROR_INTERNAL_H
#include <inttypes.h>
#include <stdbool.h> // TODO, do we need this?
#include <grpc/support/sync.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];
};
bool grpc_error_is_special(grpc_error *err);
#endif /* GRPC_CORE_LIB_IOMGR_ERROR_INTERNAL_H */
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