| /* |
| * Create a squashfs filesystem. This is a highly compressed read only |
| * filesystem. |
| * |
| * Copyright (c) 2013, 2014 |
| * 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 "error.h" |
| #include "progressbar.h" |
| #include "caches-queues-lists.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; |
| } |
| |
| |
| 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); |
| } |
| |
| |
| 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); |
| |
| |
| 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); |
| |
| 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(); |
| } |
| |
| |
| void *info_thrd(void *arg) |
| { |
| sigset_t sigmask; |
| struct timespec timespec = { .tv_sec = 1, .tv_nsec = 0 }; |
| int sig, waiting = 0; |
| |
| sigemptyset(&sigmask); |
| sigaddset(&sigmask, SIGQUIT); |
| sigaddset(&sigmask, SIGHUP); |
| |
| while(1) { |
| if(waiting) |
| sig = sigtimedwait(&sigmask, NULL, ×pec); |
| else |
| sig = sigwaitinfo(&sigmask, NULL); |
| |
| if(sig == -1) { |
| switch(errno) { |
| case EAGAIN: |
| /* interval timed out */ |
| waiting = 0; |
| /* FALLTHROUGH */ |
| case EINTR: |
| /* if waiting, the wait will be longer, but |
| that's OK */ |
| continue; |
| default: |
| BAD_ERROR("sigtimedwait/sigwaitinfo failed " |
| "because %s\n", strerror(errno)); |
| } |
| } |
| |
| 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(); |
| } |
| } |
| |
| |
| void init_info() |
| { |
| pthread_create(&info_thread, NULL, info_thrd, NULL); |
| } |