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#define _GNU_SOURCE
/*
* Copyright 2007, Intel Corporation
*
* This file is part of corewatcher.org
*
* This program file 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; version 2 of the License.
*
* 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 in a file named COPYING; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* Authors:
* Arjan van de Ven <arjan@linux.intel.com>
* William Douglas <william.douglas@intel.com>
* Tim Pepper <timothy.c.pepper@linux.intel.com>
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sched.h>
#include <syslog.h>
#include <getopt.h>
#include <sys/prctl.h>
#include <asm/unistd.h>
#include <curl/curl.h>
#include <dirent.h>
#include <sys/stat.h>
#include <errno.h>
#include <glib.h>
/* see linux kernel doc Documentation/block/ioprio.txt */
#define IOPRIO_WHO_PROCESS 1
#define IOPRIO_CLASS_IDLE 3
#define IOPRIO_CLASS_SHIFT 13
#define IOPRIO_CLASS_DATA 7
#define IOPRIO_IDLE_LOWEST (IOPRIO_CLASS_DATA | (IOPRIO_CLASS_IDLE << IOPRIO_CLASS_SHIFT))
#include "corewatcher.h"
const char *core_folder = "/var/lib/corewatcher/";
const char *processed_folder = "/var/lib/corewatcher/processed/";
static struct option opts[] = {
{ "nodaemon", 0, NULL, 'n' },
{ "always", 0, NULL, 'a' },
{ "test", 0, NULL, 't' },
{ "help", 0, NULL, 'h' },
{ 0, 0, NULL, 0 }
};
int testmode = 0;
static void usage(const char *name)
{
fprintf(stderr, "Usage: %s [OPTIONS...]\n", name);
fprintf(stderr, " -n, --nodaemon Do not daemonize, run in foreground\n");
fprintf(stderr, " -t, --test Do not send anything\n");
fprintf(stderr, " -h, --help Display this help message\n");
}
int main(int argc, char**argv)
{
GMainLoop *loop;
int godaemon = 1;
int j = 0;
DIR *dir = NULL;
GThread *inotify_thread = NULL;
GThread *submit_thread = NULL;
GThread *processing_thread = NULL;
g_thread_init (NULL);
/*
* Signal the kernel that we're not timing critical
*/
#ifdef PR_SET_TIMERSLACK
prctl(PR_SET_TIMERSLACK,1000*1000*1000, 0, 0, 0);
#endif
/* Be easier on the rest of the system */
if (syscall(__NR_ioprio_set, IOPRIO_WHO_PROCESS, getpid(),
IOPRIO_IDLE_LOWEST) == -1)
perror("Can not set IO priority to lowest IDLE class");
if (nice(15) < 0)
perror("Can not set schedule priority");
read_config_file("/etc/corewatcher/corewatcher.conf");
/* insure our directories exist */
dir = opendir(core_folder);
if (!dir) {
mkdir(core_folder, S_IRWXU | S_IRWXG | S_IRWXO | S_ISVTX);
dir = opendir(core_folder);
if (!dir)
return 1;
}
chmod(core_folder, S_IRWXU | S_IRWXG | S_IRWXO | S_ISVTX);
closedir(dir);
dir = opendir(processed_folder);
if (!dir) {
mkdir(processed_folder, S_IRWXU);
chmod(processed_folder, S_IRWXU);
dir = opendir(processed_folder);
if (!dir)
return 1;
}
chmod(processed_folder, S_IRWXU);
closedir(dir);
while (1) {
int c;
int i;
c = getopt_long(argc, argv, "adnth", opts, &i);
if (c == -1)
break;
switch(c) {
case 'n':
fprintf(stderr, "+ Not running as daemon\n");
godaemon = 0;
break;
case 't':
testmode = 1;
fprintf(stderr, "+ Test mode enabled: not sending anything\n");
break;
case 'h':
usage(argv[0]);
return EXIT_SUCCESS;
default:
break;
}
}
/*
* the curl docs say that we "should" call curl_global_init early,
* even though it'll be called later on via curl_easy_init().
* We ignore this advice, since 99.99% of the time this program
* will not use http at all, but the curl code does consume
* memory.
curl_global_init(CURL_GLOBAL_ALL);
*/
if (godaemon && daemon(0, 0)) {
fprintf(stderr, "corewatcher failed to daemonize..exiting\n");
return EXIT_FAILURE;
}
sched_yield();
loop = g_main_loop_new(NULL, FALSE);
loop = g_main_loop_ref(loop);
g_mutex_lock(&bt_mtx);
bt_hash = g_hash_table_new(g_str_hash, g_str_equal);
g_mutex_unlock(&bt_mtx);
submit_thread = g_thread_new("corewatcher submit", submit_loop, NULL);
if (submit_thread == NULL) {
fprintf(stderr, "+ Unable to start submit thread...exiting\n");
return EXIT_FAILURE;
}
processing_thread = g_thread_new("corewatcher processing", scan_processed_folder, NULL);
if (processing_thread == NULL) {
fprintf(stderr, "+ Unable to start processing thread...exiting\n");
return EXIT_FAILURE;
}
scan_folders(NULL);
if (testmode) {
fprintf(stderr, "+ Exiting from testmode\n");
goto out;
}
inotify_thread = g_thread_new("corewatcher inotify", inotify_loop, NULL);
if (inotify_thread == NULL)
fprintf(stderr, "+ Unable to start inotify thread\n");
/*
* TODO: add a thread / event source tied to a connmand plugin
* o network up: trigger scan_folders(), enables event sources
* o network down: disable sources (or allow them to run and create
* a low quality crash reports?)
* o low bandwidth net up: allow transmitting of .txt crash
* summaries (ie: no running gdb)
* o high bandwidth net up: look at existing cores vs .txt's for
* quality and if debuginfo is retrievable, try to improve
* the report quality and submit again
*/
/*
* long poll for crashes: at inotify time we might not have been
* able to fully process things, here we'd push those reports out
* If the system seems to generally work well, this time could be
* extended quite a bit longer probably.
*/
g_timeout_add_seconds(60, scan_folders, NULL);
g_main_loop_run(loop);
out:
g_main_loop_unref(loop);
for (j = 0; j < url_count; j++)
free(submit_url[j]);
return EXIT_SUCCESS;
}
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