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/*
* Copyright (c) 2018 Cisco and/or its affiliates.
* 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 included_stat_segment_shared_h
#define included_stat_segment_shared_h
typedef enum
{
STAT_DIR_TYPE_ILLEGAL = 0,
STAT_DIR_TYPE_SCALAR_INDEX,
STAT_DIR_TYPE_COUNTER_VECTOR_SIMPLE,
STAT_DIR_TYPE_COUNTER_VECTOR_COMBINED,
STAT_DIR_TYPE_ERROR_INDEX,
STAT_DIR_TYPE_NAME_VECTOR,
STAT_DIR_TYPE_EMPTY,
STAT_DIR_TYPE_SYMLINK,
} stat_directory_type_t;
typedef struct
{
stat_directory_type_t type;
union {
struct
{
uint32_t index1;
uint32_t index2;
};
uint64_t index;
uint64_t value;
void *data;
};
char name[128]; // TODO change this to pointer to "somewhere"
} stat_segment_directory_entry_t;
/*
* Shared header first in the shared memory segment.
*/
typedef struct
{
uint64_t version;
void *base;
volatile uint64_t epoch;
volatile uint64_t in_progress;
volatile stat_segment_directory_entry_t *directory_vector;
volatile uint64_t **error_vector;
} stat_segment_shared_header_t;
static inline void *
stat_segment_pointer (void *start, uint64_t offset)
{
return ((char *) start + offset);
}
#endif /* included_stat_segment_shared_h */
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