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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/time.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <ctype.h>
#include "ioshark.h"
/*
* Real simple utility that just extracts and dumps the IOshark filenames
* one per line from the ioshark_filenames file. Useful in debugging.
*/
int
main(int argc __attribute__((unused)), char **argv)
{
char *progname;
static FILE *filename_cache_fp;
struct stat st;
struct ioshark_filename_struct *filename_cache;
int filename_cache_num_entries;
size_t filename_cache_size;
int i;
progname = argv[0];
if (stat("ioshark_filenames", &st) < 0) {
fprintf(stderr, "%s Can't stat ioshark_filenames file\n",
progname);
exit(EXIT_FAILURE);
}
filename_cache_num_entries = st.st_size /
sizeof(struct ioshark_filename_struct);
filename_cache_fp = fopen("ioshark_filenames", "r");
if (filename_cache_fp == NULL) {
fprintf(stderr, "%s Cannot open ioshark_filenames file\n",
progname);
exit(EXIT_FAILURE);
}
/* Preallocate a fixed size of entries */
filename_cache_size = filename_cache_num_entries + 1024;
filename_cache = calloc(filename_cache_size,
sizeof(struct ioshark_filename_struct));
if (filename_cache == NULL) {
fprintf(stderr, "%s Can't allocate memory - this is fatal\n",
__func__);
exit(EXIT_FAILURE);
}
if (fread(filename_cache,
sizeof(struct ioshark_filename_struct),
filename_cache_num_entries,
filename_cache_fp) != (size_t)filename_cache_num_entries) {
fprintf(stderr, "%s Can't read ioshark_filenames file\n",
progname);
exit(EXIT_FAILURE);
}
for (i = 0 ; i < filename_cache_num_entries ; i++) {
printf("%s\n", filename_cache[i].path);
}
free(filename_cache);
fclose(filename_cache_fp);
}
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