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// The MIT License (MIT)
// Copyright (c) 2017 Yun-Chih Chen
// Copyright (c) 2013 Florian Richter (nflogtable)
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in
// all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#include "collect.h"
#include "commit.h"
#include "common.h"
#include <fcntl.h>
#include <getopt.h>
#include <pthread.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <sys/stat.h>
#include <unistd.h>
const char *help_text =
"Usage: " PACKAGE " [OPTION]\n"
"\n"
"Options:\n"
" -d --storage_dir=<dirname> log files storage directory\n"
" -h --help print this help\n"
" -g --nflog-group=<id> the group id to collect\n"
" -s --storage_size=<dirsize> log files maximum total size in MiB\n"
" -v --version print version information\n"
"\n";
void sig_handler(int signo) {
if (signo == SIGHUP) {
/* TODO */
}
}
int main(int argc, char *argv[]) {
uint32_t i, max_commit_worker = 0, storage_size = 0;
uint32_t trunk_cnt = 0, trunk_size = 0;
uint32_t entries_max;
nfl_global_t g;
int nfl_group_id = -1;
char *compression_flag = NULL, *storage_dir = NULL;
struct option longopts[] = {/* name, has_args, flag, val */
{"nflog-group", required_argument, NULL, 'g'},
{"storage_dir", required_argument, NULL, 'd'},
{"storage_size", required_argument, NULL, 's'},
{"compression", optional_argument, NULL, 'z'},
{"help", no_argument, NULL, 'h'},
{"version", no_argument, NULL, 'v'},
{0, 0, 0, 0}};
int opt;
while ((opt = getopt_long(argc, argv, "c:g:d:s:hv", longopts, NULL)) !=
-1) {
switch (opt) {
case 'h':
printf("%s", help_text);
exit(0);
break;
case 'v':
printf("%s %s", PACKAGE, VERSION);
exit(0);
break;
case 'c':
compression_flag = optarg;
break;
case 'd':
storage_dir = optarg;
break;
case 'g':
nfl_group_id = atoi(optarg);
break;
case 's':
storage_size = atoi(optarg);
break;
case '?':
fprintf(stderr, "Unknown argument, see --help\n");
exit(1);
}
}
// verify arguments
ASSERT(nfl_group_id != -1,
"You must provide a nflog group (see --help)!\n");
ASSERT(storage_dir != NULL,
"You must provide a storage directory (see --help)\n");
ASSERT(storage_size != 0, "You must provide the desired size of log file "
"(in MiB) (see --help)\n");
ERR(nfl_check_dir(storage_dir) < 0, "storage directory not exist");
// max number of commit worker defaults to #processor - 1
if (max_commit_worker == 0) {
max_commit_worker = sysconf(_SC_NPROCESSORS_ONLN) - 1;
max_commit_worker = max_commit_worker > 0 ? max_commit_worker : 1;
}
g.nfl_group_id = nfl_group_id;
g.storage_dir = storage_dir;
// register signal handler
ERR(signal(SIGHUP, sig_handler) == SIG_ERR, "Could not set SIGHUP handler");
nfl_cal_trunk(storage_size, &trunk_cnt, &trunk_size);
nfl_cal_entries(trunk_size, &entries_max);
nfl_setup_compression(compression_flag, &g.compression_opt);
// Set up commit worker
g.nfl_commit_queue = malloc(sizeof(sem_t));
sem_init(g.nfl_commit_queue, 0, max_commit_worker);
// Set up nflog receiver worker
nfl_state_t **trunks =
(nfl_state_t **)calloc(trunk_cnt, sizeof(void *));
nfl_commit_init(trunk_cnt);
debug("Worker started, entries_max = %d, trunk_cnt = %d", entries_max,
trunk_cnt);
for (i = 0;; i = NEXT(i, trunk_cnt)) {
debug("Running receiver worker: id = %d", i);
nfl_state_init(&(trunks[i]), i, entries_max, &g);
pthread_create(&(trunks[i]->thread), NULL, nfl_collect_worker,
(void *)trunks[i]);
// wait for current receiver worker
pthread_join(trunks[i]->thread, NULL);
}
// Won't reach here
// We don't actually free trunks or the semaphore at all
// sem_destroy(&nfl_commit_queue);
exit(0);
}
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