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/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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.
*/
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include "ioshark.h"
#define FILE_DB_HASHSIZE 8192
struct files_db_s {
char *filename;
int fileno;
struct files_db_s *next;
size_t size;
int global_filename_ix;
};
/* Lifted from Wikipedia Jenkins Hash function page */
static inline u_int32_t
jenkins_one_at_a_time_hash(char *key, size_t len)
{
u_int32_t hash, i;
for(hash = i = 0; i < len; ++i) {
hash += key[i];
hash += (hash << 10);
hash ^= (hash >> 6);
}
hash += (hash << 3);
hash ^= (hash >> 11);
hash += (hash << 15);
return hash;
}
static inline void
files_db_update_size(void *node, u_int64_t new_size)
{
struct files_db_s *db_node = (struct files_db_s *)node;
if (db_node->size < new_size)
db_node->size = new_size;
}
static inline void
files_db_add_to_size(void *node, u_int64_t size_incr)
{
((struct files_db_s *)node)->size += size_incr;
}
static inline int
files_db_get_fileno(void *node)
{
return (((struct files_db_s *)node)->fileno);
}
static inline char *
files_db_get_filename(void *node)
{
return (((struct files_db_s *)node)->filename);
}
void *files_db_create_handle(void);
void files_db_write_objects(FILE *fp);
void *files_db_add(char *filename);
void *files_db_lookup(char *filename);
int files_db_get_total_obj(void);
void init_filename_cache(void);
void store_filename_cache(void);
int ioshark_write_header(FILE *fp, struct ioshark_header *header);
int ioshark_write_file_state(FILE *fp, struct ioshark_file_state *state);
int ioshark_write_file_op(FILE *fp, struct ioshark_file_operation *file_op);
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