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/*
* Create a squashfs filesystem. This is a highly compressed read only
* filesystem.
*
* Copyright (c) 2013, 2014, 2019, 2021, 2022, 2023
* Phillip Lougher <phillip@squashfs.org.uk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2,
* or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* info.c
*/
#include <pthread.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <signal.h>
#include <sys/time.h>
#include <stdio.h>
#include <math.h>
#include <stdarg.h>
#include <errno.h>
#include <stdlib.h>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include "squashfs_fs.h"
#include "mksquashfs.h"
#include "mksquashfs_error.h"
#include "progressbar.h"
#include "caches-queues-lists.h"
#include "signals.h"
static int silent = 0;
static struct dir_ent *ent = NULL;
pthread_t info_thread;
void disable_info()
{
ent = NULL;
}
void update_info(struct dir_ent *dir_ent)
{
ent = dir_ent;
}
static void print_filename()
{
struct dir_ent *dir_ent = ent;
if(dir_ent == NULL)
return;
if(dir_ent->our_dir->subpath[0] != '\0')
INFO("%s/%s\n", dir_ent->our_dir->subpath, dir_ent->name);
else
INFO("/%s\n", dir_ent->name);
}
static void dump_state()
{
disable_progress_bar();
printf("Queue and Cache status dump\n");
printf("===========================\n");
printf("file buffer queue (reader thread -> deflate thread(s))\n");
dump_queue(to_deflate);
printf("uncompressed fragment queue (reader thread -> fragment"
" thread(s))\n");
dump_queue(to_process_frag);
printf("processed fragment queue (fragment thread(s) -> main"
" thread)\n");
dump_seq_queue(to_main, 1);
printf("compressed block queue (deflate thread(s) -> main thread)\n");
dump_seq_queue(to_main, 0);
printf("uncompressed packed fragment queue (main thread -> fragment"
" deflate thread(s))\n");
dump_queue(to_frag);
if(!reproducible) {
printf("locked frag queue (compressed frags waiting while multi-block"
" file is written)\n");
dump_queue(locked_fragment);
printf("compressed block queue (main & fragment deflate threads(s) ->"
" writer thread)\n");
dump_queue(to_writer);
} else {
printf("compressed fragment queue (fragment deflate threads(s) ->"
"fragment order thread)\n");
dump_seq_queue(to_order, 0);
printf("compressed block queue (main & fragment order threads ->"
" writer thread)\n");
dump_queue(to_writer);
}
printf("read cache (uncompressed blocks read by reader thread)\n");
dump_cache(reader_buffer);
printf("block write cache (compressed blocks waiting for the writer"
" thread)\n");
dump_cache(bwriter_buffer);
printf("fragment write cache (compressed fragments waiting for the"
" writer thread)\n");
dump_cache(fwriter_buffer);
printf("fragment cache (frags waiting to be compressed by fragment"
" deflate thread(s))\n");
dump_cache(fragment_buffer);
printf("fragment reserve cache (avoids pipeline stall if frag cache"
" full in dup check)\n");
dump_cache(reserve_cache);
enable_progress_bar();
}
static void *info_thrd(void *arg)
{
sigset_t sigmask;
int sig, waiting = 0;
sigemptyset(&sigmask);
sigaddset(&sigmask, SIGQUIT);
sigaddset(&sigmask, SIGHUP);
while(1) {
sig = wait_for_signal(&sigmask, &waiting);
if(sig == SIGQUIT && !waiting) {
print_filename();
/* set one second interval period, if ^\ received
within then, dump queue and cache status */
waiting = 1;
} else
dump_state();
}
return NULL;
}
void init_info()
{
pthread_create(&info_thread, NULL, info_thrd, NULL);
}
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