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#include <pthread.h>
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <assert.h>
#include <signal.h>
#include <sys/prctl.h>
#include <jemalloc/jemalloc.h>
#include "log.h"
#include "utils.h"
#include "shaper.h"
#include "shaper_stat.h"
#include "shaper_marsio.h"
#include "shaper_session.h"
#include "shaper_swarmkv.h"
#include "shaper_global_stat.h"
static int quit = 0;
static void *shaper_thread_loop(void *data)
{
char thread_name[16] = {0};
struct shaping_thread_ctx *ctx = (struct shaping_thread_ctx *)data;
int output_interval_s = ctx->ref_ctx->global_stat->output_interval_s;
snprintf(thread_name, sizeof(thread_name), "shape-work-%d", ctx->thread_index);
prctl(PR_SET_NAME, (unsigned long long)thread_name, NULL, NULL, NULL);
if (marsio_thread_init(ctx->marsio_info->instance) != 0) {
LOG_ERROR("%s: marsio_thread_init failed", LOG_TAG_SHAPING);
return NULL;
}
swarmkv_register_thread(ctx->swarmkv_db);
//loop to process pkts
while(!quit) {
shaper_packet_recv_and_process(ctx);
if (__atomic_load_n(&ctx->session_need_reset, __ATOMIC_SEQ_CST) > 0) {
session_table_reset_with_callback(ctx->session_table, shaper_session_data_free_cb, ctx);
__atomic_fetch_and(&ctx->session_need_reset, 0, __ATOMIC_SEQ_CST);
}
marsio_poll_wait(ctx->marsio_info->instance, &ctx->marsio_info->mr_dev, 1, ctx->thread_index, output_interval_s * 1000);
}
shaper_thread_resource_clear();
return NULL;
}
static void sig_handler(int signo)
{
if (signo == SIGHUP)
{
LOG_INFO("%s: recv SIGHUP, reload zlog.conf and swarmkv log level", LOG_TAG_SHAPING);
LOG_RELOAD();
swarmkv_reload_log_level();
}
if (signo == SIGQUIT || signo == SIGTERM) {
quit = 1;
}
return;
}
int main(int argc, char **argv)
{
struct shaping_ctx *ctx = NULL;
time_t last_update_time = time(NULL);
if (LOG_INIT("./conf/zlog.conf") == -1)
{
return -1;
}
if (signal(SIGHUP, sig_handler) == SIG_ERR)
{
LOG_ERROR("%s: unable to register SIGHUP signal handler, error %d: %s", LOG_TAG_SHAPING, errno, strerror(errno));
LOG_CLOSE();
return -1;
}
if (signal(SIGQUIT, sig_handler) == SIG_ERR || signal(SIGTERM, sig_handler) == SIG_ERR)
{
LOG_ERROR("%s: unable to register SIGQUIT or SIGTERM signal handler, error %d: %s", LOG_TAG_SHAPING, errno, strerror(errno));
LOG_CLOSE();
return -1;
}
bool flag = true;
int ret = mallctl("background_thread", NULL, NULL, &flag, sizeof(flag));
if (ret != 0) {
LOG_ERROR("%s: mallctl(background_thread) failed, ret %d", LOG_TAG_SHAPING, ret);
LOG_CLOSE();
return -1;
}
ctx = shaping_engine_init();
if (!ctx) {
return -1;
}
for (int i = 0; i < ctx->thread_num; i++) {
int ret = pthread_create(&ctx->thread_ctx[i].tid, NULL, shaper_thread_loop, &ctx->thread_ctx[i]);
if (ret < 0) {
LOG_ERROR("%s: create thread failed, error %d: %s", LOG_TAG_SHAPING, errno, strerror(errno));
}
}
while(!quit) {
time_t curr_time = time(NULL);
if (curr_time - last_update_time >= ctx->global_stat->output_interval_s) {
shaper_global_stat_refresh(ctx);
last_update_time = curr_time;
}
sleep(ctx->global_stat->output_interval_s);
}
for (int i = 0; i < ctx->thread_num; i++) {
pthread_join(ctx->thread_ctx[i].tid, NULL);
}
shaping_engine_destroy(ctx);
return 0;
}
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