151 lines
4.4 KiB
C
151 lines
4.4 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2012 Auke Kok <auke-jan.h.kok@intel.com>
|
|
|
|
systemd is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdbool.h>
|
|
#include <unistd.h>
|
|
#include <inttypes.h>
|
|
#include <linux/limits.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <string.h>
|
|
|
|
#include "readahead-common.h"
|
|
|
|
int main_analyze(const char *pack_path) {
|
|
char line[LINE_MAX];
|
|
FILE *pack;
|
|
int a;
|
|
int missing = 0;
|
|
off_t tsize = 0;
|
|
|
|
if (!pack_path)
|
|
pack_path = "/.readahead";
|
|
|
|
pack = fopen(pack_path, "re");
|
|
if (!pack) {
|
|
log_error("Pack file missing.");
|
|
goto fail;
|
|
}
|
|
|
|
if (!fgets(line, sizeof(line), pack)) {
|
|
log_error("Pack file corrupt.");
|
|
goto fail;
|
|
}
|
|
|
|
char_array_0(line);
|
|
|
|
if (!endswith(line, READAHEAD_PACK_FILE_VERSION)) {
|
|
log_error("Pack file version incompatible with this parser.");
|
|
goto fail;
|
|
}
|
|
|
|
if ((a = getc(pack)) == EOF) {
|
|
log_error("Pack file corrupt.");
|
|
goto fail;
|
|
}
|
|
|
|
fputs(" pct sections size: path\n"
|
|
" === ======== ====: ====\n", stdout);
|
|
|
|
for (;;) {
|
|
char path[PATH_MAX];
|
|
struct stat st;
|
|
uint64_t inode;
|
|
int pages = 0;
|
|
int sections = 0;
|
|
|
|
if (!fgets(path, sizeof(path), pack))
|
|
break; /* done */
|
|
|
|
path[strlen(path)-1] = 0;
|
|
|
|
if (fread(&inode, sizeof(inode), 1, pack) != 1) {
|
|
log_error("Pack file corrupt.");
|
|
goto fail;
|
|
}
|
|
|
|
for (;;) {
|
|
uint32_t b, c;
|
|
|
|
if (fread(&b, sizeof(b), 1, pack) != 1 ||
|
|
fread(&c, sizeof(c), 1, pack) != 1) {
|
|
log_error("Pack file corrupt.");
|
|
goto fail;
|
|
}
|
|
if ((b == 0) && (c == 0))
|
|
break;
|
|
|
|
/* Uncomment this to get all the chunks separately
|
|
printf(" %d: %d %d\n", sections, b, c);
|
|
*/
|
|
|
|
pages += (c - b);
|
|
sections++;
|
|
}
|
|
|
|
if (stat(path, &st) == 0) {
|
|
off_t size;
|
|
|
|
if (sections == 0)
|
|
size = st.st_size;
|
|
else
|
|
size = pages * page_size();
|
|
|
|
tsize += size;
|
|
|
|
printf(" %4d%% (%2d) %12ld: %s\n",
|
|
sections ? (int) (size * 100 / st.st_size) : 100,
|
|
sections ? sections : 1,
|
|
(unsigned long)size,
|
|
path);
|
|
} else {
|
|
printf(" %4dp (%2d) %12s: %s (MISSING)\n",
|
|
sections ? pages : -1,
|
|
sections ? sections : 1,
|
|
"???",
|
|
path);
|
|
missing++;
|
|
}
|
|
|
|
}
|
|
|
|
fclose(pack);
|
|
|
|
printf("\nHOST: %s"
|
|
"TYPE: %c\n"
|
|
"MISSING: %d\n"
|
|
"TOTAL: %llu\n",
|
|
line,
|
|
a,
|
|
missing,
|
|
(unsigned long long) tsize);
|
|
|
|
return EXIT_SUCCESS;
|
|
|
|
fail:
|
|
if(pack)
|
|
fclose(pack);
|
|
return EXIT_FAILURE;
|
|
}
|