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88 lines
2.1 KiB
88 lines
2.1 KiB
4 months ago
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/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include "ioshark.h"
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#define FILE_DB_HASHSIZE 8192
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struct files_db_s {
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char *filename;
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int fileno;
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struct files_db_s *next;
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size_t size;
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int global_filename_ix;
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};
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/* Lifted from Wikipedia Jenkins Hash function page */
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static inline u_int32_t
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jenkins_one_at_a_time_hash(char *key, size_t len)
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{
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u_int32_t hash, i;
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for(hash = i = 0; i < len; ++i) {
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hash += key[i];
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hash += (hash << 10);
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hash ^= (hash >> 6);
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}
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hash += (hash << 3);
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hash ^= (hash >> 11);
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hash += (hash << 15);
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return hash;
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}
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static inline void
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files_db_update_size(void *node, u_int64_t new_size)
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{
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struct files_db_s *db_node = (struct files_db_s *)node;
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if (db_node->size < new_size)
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db_node->size = new_size;
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}
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static inline void
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files_db_add_to_size(void *node, u_int64_t size_incr)
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{
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((struct files_db_s *)node)->size += size_incr;
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}
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static inline int
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files_db_get_fileno(void *node)
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{
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return (((struct files_db_s *)node)->fileno);
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}
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static inline char *
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files_db_get_filename(void *node)
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{
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return (((struct files_db_s *)node)->filename);
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}
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void *files_db_create_handle(void);
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void files_db_write_objects(FILE *fp);
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void *files_db_add(char *filename);
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void *files_db_lookup(char *filename);
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int files_db_get_total_obj(void);
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void init_filename_cache(void);
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void store_filename_cache(void);
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int ioshark_write_header(FILE *fp, struct ioshark_header *header);
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int ioshark_write_file_state(FILE *fp, struct ioshark_file_state *state);
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int ioshark_write_file_op(FILE *fp, struct ioshark_file_operation *file_op);
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