void program_deinit(void){
/* Close libnotify */
if(notifing) notify_uninit();
gconfig_shutdown();
online_service_request_unset_selected_update();
online_services_deinit();
proxy_deinit();
ipc_deinit();
www_deinit();
groups_deinit();
images_deinit();
cache_deinit();
xml_parser_deinit();
debug("**NOTICE:** %s exited", GETTEXT_PACKAGE);
debug_deinit();
datetime_locale_deinit();
}/*program_deinit();*/
static void
core_ctx_destroy(struct context *ctx)
{
log_debug(LOG_VVERB, "destroy ctx %p id %"PRIu32"", ctx, ctx->id);
proxy_deinit(ctx);
server_pool_disconnect(ctx);
event_deinit(ctx);
stats_destroy(ctx->stats);
server_pool_deinit(&ctx->pool);
conf_destroy(ctx->cf);
nc_free(ctx);
}
rstatus_t
proxy_init(struct context *ctx)
{
rstatus_t status;
ASSERT(array_n(&ctx->pool) != 0);
status = array_each(&ctx->pool, proxy_each_init, NULL);
if (status != DN_OK) {
proxy_deinit(ctx);
return status;
}
log_debug(LOG_VVERB, "init proxy with %"PRIu32" pools",
array_n(&ctx->pool));
return DN_OK;
}
rstatus_t
proxy_init(struct context *ctx)
{ //为alpha等大server的bind创建套接字并接收客户端连接
rstatus_t status;
ASSERT(array_n(&ctx->pool) != 0);
status = array_each(&ctx->pool, proxy_each_init, NULL);
if (status != NC_OK) {
proxy_deinit(ctx);
return status;
}
log_debug(LOG_VVERB, "init proxy with %"PRIu32" pools",
array_n(&ctx->pool));
return NC_OK;
}
static struct context *
core_ctx_create(struct instance *nci)
{
rstatus_t status;
struct context *ctx;
ctx = nc_alloc(sizeof(*ctx));
if (ctx == NULL) {
return NULL;
}
ctx->id = ++ctx_id;
ctx->cf = NULL;
ctx->stats = NULL;
array_null(&ctx->pool);
ctx->ep = -1;
ctx->nevent = EVENT_SIZE_HINT;
ctx->max_timeout = nci->stats_interval;
ctx->timeout = ctx->max_timeout;
ctx->event = NULL;
/* parse and create configuration */
ctx->cf = conf_create(nci->conf_filename);
if (ctx->cf == NULL) {
nc_free(ctx);
return NULL;
}
/* initialize server pool from configuration */
status = server_pool_init(&ctx->pool, &ctx->cf->pool, ctx);
if (status != NC_OK) {
conf_destroy(ctx->cf);
nc_free(ctx);
return NULL;
}
/* create stats per server pool */
ctx->stats = stats_create(nci->stats_port, nci->stats_addr, nci->stats_interval,
nci->hostname, &ctx->pool);
if (ctx->stats == NULL) {
server_pool_deinit(&ctx->pool);
conf_destroy(ctx->cf);
nc_free(ctx);
return NULL;
}
/* initialize event handling for client, proxy and server */
status = event_init(ctx, EVENT_SIZE_HINT);
if (status != NC_OK) {
stats_destroy(ctx->stats);
server_pool_deinit(&ctx->pool);
conf_destroy(ctx->cf);
nc_free(ctx);
return NULL;
}
/* preconnect? servers in server pool */
status = server_pool_preconnect(ctx);
if (status != NC_OK) {
server_pool_disconnect(ctx);
event_deinit(ctx);
stats_destroy(ctx->stats);
server_pool_deinit(&ctx->pool);
conf_destroy(ctx->cf);
nc_free(ctx);
return NULL;
}
/* initialize proxy per server pool */
status = proxy_init(ctx);
if (status != NC_OK) {
server_pool_disconnect(ctx);
event_deinit(ctx);
stats_destroy(ctx->stats);
server_pool_deinit(&ctx->pool);
conf_destroy(ctx->cf);
nc_free(ctx);
return NULL;
}
/* register to zookeeper if it is configured */
status = server_pool_register_to_zookeeper(ctx);
if (status != NC_OK) {
zookeeper_deinit();
proxy_deinit(ctx);
server_pool_disconnect(ctx);
event_deinit(ctx);
stats_destroy(ctx->stats);
server_pool_deinit(&ctx->pool);
conf_destroy(ctx->cf);
nc_free(ctx);
return NULL;
}
log_debug(LOG_VVERB, "created ctx %p id %"PRIu32"", ctx, ctx->id);
return ctx;
}