MASTER_API int
master_init(struct master *m, struct skynet_context *ctx, const char * args) {
//char tmp[strlen(args) + 32];
char tmp[256];
sprintf(tmp,"gate L ! %s %d %d 0",args,PTYPE_HARBOR,REMOTE_MAX);
const char * gate_addr = skynet_command(ctx, "LAUNCH", tmp);
if (gate_addr == NULL) {
skynet_error(ctx, "Master : launch gate failed");
return 1;
}
uint32_t gate = strtoul(gate_addr+1, NULL, 16);
if (gate == 0) {
skynet_error(ctx, "Master : launch gate invalid %s", gate_addr);
return 1;
}
const char * self_addr = skynet_command(ctx, "REG", NULL);
int n = sprintf(tmp,"broker %s",self_addr);
skynet_send(ctx, 0, gate, PTYPE_TEXT, 0, tmp, n);
skynet_send(ctx, 0, gate, PTYPE_TEXT, 0, "start", 5);
skynet_callback(ctx, m, _mainloop);
m->ctx = ctx;
return 0;
}
static int
_cb(struct skynet_context * ctx, void * ud, int type, int session, uint32_t source, const void * msg, size_t sz) {
struct gate *g = ud;
if (type == PTYPE_TEXT) {
_ctrl(ctx, g , msg , (int)sz);
return 0;
}
assert(type == PTYPE_RESPONSE);
struct mread_pool * m = g->pool;
int connection_id = mread_poll(m,100); // timeout : 100ms
if (connection_id < 0) {
skynet_command(ctx, "TIMEOUT", "1");
} else {
int id = g->map[connection_id].uid;
if (id == 0) {
id = _gen_id(g, connection_id);
int fd = mread_socket(m , connection_id);
struct sockaddr_in remote_addr;
socklen_t len = sizeof(struct sockaddr_in);
getpeername(fd, (struct sockaddr *)&remote_addr, &len);
_report(g, ctx, "%d open %d %s:%u",id,fd,inet_ntoa(remote_addr.sin_addr),ntohs(remote_addr.sin_port));
}
uint8_t * plen = mread_pull(m,g->header_size);
if (plen == NULL) {
if (mread_closed(m)) {
_remove_id(g,id);
_report(g, ctx, "%d close", id);
}
goto _break;
}
// big-endian
int len ;
if (g->header_size == 2) {
len = plen[0] << 8 | plen[1];
} else {
len = plen[0] << 24 | plen[1] << 16 | plen[2] << 8 | plen[3];
}
void * data = mread_pull(m, len);
if (data == NULL) {
if (mread_closed(m)) {
_remove_id(g,id);
_report(g, ctx, "%d close", id);
}
goto _break;
}
_forward(ctx, g, id, data, len);
mread_yield(m);
_break:
skynet_command(ctx, "TIMEOUT", "0");
}
return 0;
}
int
syslog_init (void *inst, struct skynet_context *ctx, const char *ident) {
openlog (ident, LOG_PID, LOG_LOCAL3);
skynet_callback (ctx, NULL, cb);
skynet_command (ctx, "REG", ".logger");
return 0;
}
int
localcast_init(void * ud, struct skynet_context *ctx, const char * args) {
skynet_callback(ctx, ud, _maincb);
skynet_command(ctx, "REG", ".cast");
return 0;
}
static void
_poll(struct connection_server * server) {
int timeout = 100;
void * buffer = NULL;
for (;;) {
struct connection * c = connection_poll(server->pool, timeout);
if (c==NULL) {
skynet_command(server->ctx,"TIMEOUT","1");
return;
}
timeout = 0;
if (buffer == NULL) {
buffer = malloc(DEFAULT_BUFFER_SIZE);
}
int size = read(c->fd, buffer, DEFAULT_BUFFER_SIZE);
if (size < 0) {
continue;
}
if (size == 0) {
free(buffer);
buffer = NULL;
if (c->close == 0) {
c->close = 1;
skynet_send(server->ctx, 0, c->address, PTYPE_CLIENT | PTYPE_TAG_DONTCOPY, 0, NULL, 0);
connection_del(server->pool, c->fd);
}
} else {
skynet_send(server->ctx, 0, c->address, PTYPE_CLIENT | PTYPE_TAG_DONTCOPY, 0, buffer, size);
buffer = NULL;
}
}
}
static int
laddresscommand(lua_State *L) {
struct skynet_context * context = lua_touserdata(L, lua_upvalueindex(1));
const char * cmd = luaL_checkstring(L,1);
const char * result;
const char * parm = NULL;
if (lua_gettop(L) == 2) {
parm = luaL_checkstring(L,2);
}
result = skynet_command(context, cmd, parm);
if (result && result[0] == ':') {
int i;
uint32_t addr = 0;
for (i=1;result[i];i++) {
int c = result[i];
if (c>='0' && c<='9') {
c = c - '0';
} else if (c>='a' && c<='f') {
c = c - 'a' + 10;
} else if (c>='A' && c<='F') {
c = c - 'A' + 10;
} else {
return 0;
}
addr = addr * 16 + c;
}
lua_pushinteger(L, addr);
return 1;
}
return 0;
}
static const char *
optstring(struct skynet_context *ctx, const char *key, const char * str) {
const char * ret = skynet_command(ctx, "GETENV", key);
if (ret == NULL) {
return str;
}
return ret;
}
static int
init_cb(struct snlua *l, struct skynet_context *ctx, const char * args, size_t sz) {
lua_State *L = l->L;
l->ctx = ctx;
lua_gc(L, LUA_GCSTOP, 0);
lua_pushboolean(L, 1); /* signal for libraries to ignore env. vars. */
lua_setfield(L, LUA_REGISTRYINDEX, "LUA_NOENV");
luaL_openlibs(L);
lua_pushlightuserdata(L, ctx);
lua_setfield(L, LUA_REGISTRYINDEX, "skynet_context");
luaL_requiref(L, "skynet.codecache", codecache , 0);
lua_pop(L,1);
const char *path = optstring(ctx, "lua_path","./lualib/?.lua;./lualib/?/init.lua");
lua_pushstring(L, path);
lua_setglobal(L, "LUA_PATH");
const char *cpath = optstring(ctx, "lua_cpath","./luaclib/?.so");
lua_pushstring(L, cpath);
lua_setglobal(L, "LUA_CPATH");
const char *service = optstring(ctx, "luaservice", "./service/?.lua");
lua_pushstring(L, service);
lua_setglobal(L, "LUA_SERVICE");
const char *preload = skynet_command(ctx, "GETENV", "preload");
lua_pushstring(L, preload);
lua_setglobal(L, "LUA_PRELOAD");
lua_pushcfunction(L, traceback);
assert(lua_gettop(L) == 1);
const char * loader = optstring(ctx, "lualoader", "./lualib/loader.lua");
int r = luaL_loadfile(L,loader);
if (r != LUA_OK) {
skynet_error(ctx, "Can't load %s : %s", loader, lua_tostring(L, -1));
report_launcher_error(ctx);
return 1;
}
lua_pushlstring(L, args, sz);
r = lua_pcall(L,1,0,1);
if (r != LUA_OK) {
skynet_error(ctx, "lua loader error : %s", lua_tostring(L, -1));
report_launcher_error(ctx);
return 1;
}
lua_settop(L,0);
if (lua_getfield(L, LUA_REGISTRYINDEX, "memlimit") == LUA_TNUMBER) {
size_t limit = lua_tointeger(L, -1);
l->mem_limit = limit;
skynet_error(ctx, "Set memory limit to %.2f M", (float)limit / (1024 * 1024));
lua_pushnil(L);
lua_setfield(L, LUA_REGISTRYINDEX, "memlimit");
}
lua_pop(L, 1);
lua_gc(L, LUA_GCRESTART, 0);
return 0;
}
static void
_launch_gate(struct skynet_context * ctx, const char * local_addr) {
char tmp[128];
sprintf(tmp,"gate L ! %s %d %d 0",local_addr, PTYPE_HARBOR, REMOTE_MAX);
const char * gate_addr = skynet_command(ctx, "LAUNCH", tmp);
if (gate_addr == NULL) {
fprintf(stderr, "Harbor : launch gate failed\n");
exit(1);
}
uint32_t gate = strtoul(gate_addr+1 , NULL, 16);
if (gate == 0) {
fprintf(stderr, "Harbor : launch gate invalid %s", gate_addr);
exit(1);
}
const char * self_addr = skynet_command(ctx, "REG", NULL);
int n = sprintf(tmp,"broker %s",self_addr);
skynet_send(ctx, 0, gate, PTYPE_TEXT, 0, tmp, n);
skynet_send(ctx, 0, gate, PTYPE_TEXT, 0, "start", 5);
}
int
connection_init(struct connection_server * server, struct skynet_context * ctx, char * param) {
server->pool = connection_newpool(DEFAULT_CONNECTION);
if (server->pool == NULL)
return 1;
server->max_connection = strtol(param, NULL, 10);
if (server->max_connection == 0) {
server->max_connection = DEFAULT_CONNECTION;
}
server->current_connection = 0;
server->ctx = ctx;
server->conn = malloc(server->max_connection * sizeof(struct connection));
memset(server->conn, 0, server->max_connection * sizeof(struct connection));
skynet_callback(ctx, server, _connection_main);
skynet_command(ctx,"REG",".connection");
skynet_command(ctx,"TIMEOUT","0");
return 0;
}
int
harbor_init(struct harbor *h, struct skynet_context *ctx, const char * args) {
int sz = strlen(args)+1;
char master_addr[sz];
char local_addr[sz];
int harbor_id = 0;
sscanf(args,"%s %s %d",master_addr, local_addr, &harbor_id);
int master_fd = _connect_to(ctx, master_addr);
if (master_fd < 0) {
skynet_error(ctx, "Harbor : Connect to master %s faild",master_addr);
return 1;
}
printf("Connect to master %s\n",master_addr);
h->master_addr = strdup(master_addr);
h->master_fd = master_fd;
char tmp[128];
sprintf(tmp,"gate L ! %s %d %d 0",local_addr, PTYPE_HARBOR, REMOTE_MAX);
const char * gate_addr = skynet_command(ctx, "LAUNCH", tmp);
if (gate_addr == NULL) {
skynet_error(ctx, "Harbor : launch gate failed");
return 1;
}
uint32_t gate = strtoul(gate_addr+1 , NULL, 16);
if (gate == 0) {
skynet_error(ctx, "Harbor : launch gate invalid %s", gate_addr);
return 1;
}
const char * self_addr = skynet_command(ctx, "REG", NULL);
int n = sprintf(tmp,"broker %s",self_addr);
skynet_send(ctx, 0, gate, PTYPE_TEXT, 0, tmp, n);
skynet_send(ctx, 0, gate, PTYPE_TEXT, 0, "start", 5);
h->id = harbor_id;
skynet_callback(ctx, h, _mainloop);
_report_local_address(h, ctx, local_addr, harbor_id);
return 0;
}
static int
launch_cb(struct skynet_context * context, void *ud, int type, int session, uint32_t source , const void * msg, size_t sz) {
assert(type == 0 && session == 0);
struct snlua *l = ud;
skynet_callback(context, NULL, NULL); // 将消息处理函数置空，以免别的消息发过来
int err = init_cb(l, context, msg, sz); // 消息处理:通过 loader.lua 加载 lua 代码块
if (err) {
skynet_command(context, "EXIT", NULL);
}
return 0;
}
static int
_launch(struct skynet_context * context, void *ud, int type, int session, uint32_t source , const void * msg, size_t sz) {
assert(type == 0 && session == 0);
struct snlua *l = ud;
skynet_callback(context, NULL, NULL);
int err = _init(l, context, msg, sz);
if (err) {
skynet_command(context, "EXIT", NULL);
}
return 0;
}
int
snlua_init(struct snlua *l, struct skynet_context *ctx, const char * args) {
int sz = strlen(args);
char * tmp = skynet_malloc(sz);
memcpy(tmp, args, sz);
skynet_callback(ctx, l , _launch);
const char * self = skynet_command(ctx, "REG", NULL);
uint32_t handle_id = strtoul(self+1, NULL, 16);
// it must be first message
skynet_send(ctx, 0, handle_id, PTYPE_TAG_DONTCOPY,0, tmp, sz);
return 0;
}
static void
heartbeat(struct skynet_context *ctx, struct package *P) {
if (P->recv == P->heartbeat) {
if (!P->closed) {
skynet_socket_shutdown(ctx, P->fd);
skynet_error(ctx, "timeout %d", P->fd);
}
} else {
P->heartbeat = P->recv = 0;
skynet_command(ctx, "TIMEOUT", TIMEOUT);
}
}
static void
_ctrl(struct skynet_context * ctx, struct gate * g, const void * msg, int sz) {
char tmp[sz+1];
memcpy(tmp, msg, sz);
tmp[sz] = '\0';
char * command = tmp;
int i;
if (sz == 0)
return;
for (i=0;i<sz;i++) {
if (command[i]==' ') {
break;
}
}
if (memcmp(command,"kick",i)==0) {
_parm(tmp, sz, i);
int uid = strtol(command , NULL, 10);
struct connection * agent = _id_to_agent(g,uid);
if (agent) {
int connection_id = agent->connection_id;
mread_close_client(g->pool,connection_id);
}
return;
}
if (memcmp(command,"forward",i)==0) {
_parm(tmp, sz, i);
char * client = tmp;
char * idstr = strsep(&client, " ");
if (client == NULL) {
return;
}
int id = strtol(idstr , NULL, 10);
char * agent = strsep(&client, " ");
if (client == NULL) {
return;
}
uint32_t agent_handle = strtoul(agent+1, NULL, 16);
uint32_t client_handle = strtoul(client+1, NULL, 16);
_forward_agent(g, id, agent_handle, client_handle);
return;
}
if (memcmp(command,"broker",i)==0) {
_parm(tmp, sz, i);
g->broker = skynet_queryname(ctx, command);
return;
}
if (memcmp(command,"start",i) == 0) {
skynet_command(ctx,"TIMEOUT","0");
return;
}
skynet_error(ctx, "[gate] Unkown command : %s", command);
}
static void
service_exit(struct skynet_context *ctx, struct package *P) {
// report manager
P->closed = 1;
while (!queue_empty(&P->request)) {
struct request req;
queue_pop(&P->request, &req);
skynet_send(ctx, 0, req.source, PTYPE_ERROR, req.session, NULL, 0);
}
// free unsend response buffer on package_release
skynet_send(ctx, 0, P->manager, PTYPE_TEXT, 0, "CLOSED", 6);
skynet_command(ctx, "EXIT", NULL);
}
int
snlua_init(struct snlua *l, struct skynet_context *ctx, const char * args) {
int sz = strlen(args);
char * tmp = skynet_malloc(sz);
memcpy(tmp, args, sz);
skynet_callback(ctx, l , launch_cb); // 注册消息处理函数
const char * self = skynet_command(ctx, "REG", NULL); // 得到自身的服务的地址，是一个带冒号的字符串
uint32_t handle_id = strtoul(self+1, NULL, 16); // 得到数字地址
// it must be first message
//直接发送消息，以便snlua能第一个加载 相应的服务
skynet_send(ctx, 0, handle_id, PTYPE_TAG_DONTCOPY,0, tmp, sz); // 发消息给自己以便加载相应的服务模块
return 0;
}
static int
_cb(struct skynet_context * context, void * ud, int session, const char * addr, const void * msg, size_t sz) {
lua_State *L = ud;
int trace = 1;
int top = lua_gettop(L);
if (top == 1) {
lua_rawgetp(L, LUA_REGISTRYINDEX, _cb);
} else {
assert(top == 2);
lua_pushvalue(L,2);
}
int r;
if (msg == NULL) {
if (addr == NULL) {
lua_pushinteger(L, session);
r = lua_pcall(L, 1, 0 , trace);
} else {
lua_pushinteger(L, session);
lua_pushstring(L, addr);
r = lua_pcall(L, 2, 0 , trace);
}
} else {
lua_pushinteger(L, session);
lua_pushstring(L, addr);
lua_pushlightuserdata(L,(void *)msg);
lua_pushinteger(L,sz);
r = lua_pcall(L, 4, 0 , trace);
}
if (r == LUA_OK)
return 0;
const char * self = skynet_command(context, "REG", NULL);
switch (r) {
case LUA_ERRRUN:
skynet_error(context, "lua call [%s to %s : %d msgsz = %d] error : %s", addr , self, session, sz, lua_tostring(L,-1));
break;
case LUA_ERRMEM:
skynet_error(context, "lua memory error : [%s to %s : %d]", addr , self, session);
break;
case LUA_ERRERR:
skynet_error(context, "lua error in error : [%s to %s : %d]", addr , self, session);
break;
case LUA_ERRGCMM:
skynet_error(context, "lua gc error : [%s to %s : %d]", addr , self, session);
break;
};
lua_pop(L,1);
return 0;
}
static int
_command(lua_State *L) {
struct skynet_context * context = lua_touserdata(L, lua_upvalueindex(1));
const char * cmd = luaL_checkstring(L,1);
const char * result;
const char * parm = NULL;
if (lua_gettop(L) == 2) {
parm = luaL_checkstring(L,2);
}
result = skynet_command(context, cmd, parm);
if (result) {
lua_pushstring(L, result);
return 1;
}
return 0;
}
static int
_launch(struct skynet_context * context, void *ud, int type, int session, uint32_t source , const void * msg, size_t sz) {
assert(type == 0 && session == 0);
struct snlua *l = ud;
skynet_callback(context, NULL, NULL);
struct timespec ti;
current_time(&ti);
int err = _init(l, context, msg);
double t = diff_time(&ti);
lua_pushnumber(l->L, t);
lua_setfield(l->L, LUA_REGISTRYINDEX, "skynet_boottime");
if (err) {
skynet_command(context, "EXIT", NULL);
}
return 0;
}
//初始化某个snlua服务,snlua在create时创建了一个lua虚拟机
//l, 服务实例
//ctx,与服务实例关联的一些上下文配置资源
//args,参数{通常为脚本名}
int
snlua_init(struct snlua *l, struct skynet_context *ctx, const char * args) {
//复制参数
int sz = strlen(args);
char * tmp = skynet_malloc(sz);
memcpy(tmp, args, sz);
//设置启动回调
skynet_callback(ctx, l , launch_cb);
//注册一个服务名称,如果没用字符串,直接返回16进制格式返回服务":唯一ID"
//否则注册一个字符串格式的名字
const char * self = skynet_command(ctx, "REG", NULL);
uint32_t handle_id = strtoul(self+1, NULL, 16);
// it must be first message
//由框架向目标服务handle_id投递一个消息,必须保证这是服务的接收的第一条消息, 消息的内容是调用参数{脚本名,session设置为0表示不需要回应}
skynet_send(ctx, 0, handle_id, PTYPE_TAG_DONTCOPY,0, tmp, sz);
return 0;
}
static int
_cb(struct skynet_context * context, void * ud, int type, int session, uint32_t source, const void * msg, size_t sz) {
lua_State *L = ud;
int trace = 1;
int r;
int top = lua_gettop(L);
if (top == 0) {
lua_pushcfunction(L, traceback);
lua_rawgetp(L, LUA_REGISTRYINDEX, _cb);
} else {
assert(top == 2);
}
lua_pushvalue(L,2);
lua_pushinteger(L, type);
lua_pushlightuserdata(L, (void *)msg);
lua_pushinteger(L,sz);
lua_pushinteger(L, session);
lua_pushnumber(L, source);
r = lua_pcall(L, 5, 0 , trace);
if (r == LUA_OK) {
return 0;
}
const char * self = skynet_command(context, "REG", NULL);
switch (r) {
case LUA_ERRRUN:
skynet_error(context, "lua call [%x to %s : %d msgsz = %d] error : " KRED "%s" KNRM, source , self, session, sz, lua_tostring(L,-1));
break;
case LUA_ERRMEM:
skynet_error(context, "lua memory error : [%x to %s : %d]", source , self, session);
break;
case LUA_ERRERR:
skynet_error(context, "lua error in error : [%x to %s : %d]", source , self, session);
break;
case LUA_ERRGCMM:
skynet_error(context, "lua gc error : [%x to %s : %d]", source , self, session);
break;
};
lua_pop(L,1);
return 0;
}
LOGGER_API int
logger_init(struct logger * inst, struct skynet_context *ctx, const char * parm) {
if (parm) {
inst->handle = fopen(parm,"w");
if (inst->handle == NULL) {
return 1;
}
inst->close = 1;
} else {
inst->handle = stdout;
}
if (inst->handle) {
skynet_callback(ctx, inst, _logger);
skynet_command(ctx, "REG", ".logger");
return 0;
}
return 1;
}
void
skynet_start(struct skynet_config * config) {
skynet_group_init();
skynet_harbor_init(config->harbor);
skynet_handle_init(config->harbor);
skynet_mq_init();
skynet_module_init(config->module_path);
skynet_timer_init();
skynet_socket_init();
if (config->standalone) {
if (_start_master(config->standalone)) {
fprintf(stderr, "Init fail : mater");
return;
}
}
// harbor must be init first
if (skynet_harbor_start(config->master , config->local)) {
fprintf(stderr, "Init fail : no master");
return;
}
struct skynet_context *ctx;
ctx = skynet_context_new("logger", config->logger);
if (ctx == NULL) {
fprintf(stderr,"launch logger error");
exit(1);
}
ctx = skynet_context_new("localcast", NULL);
if (ctx == NULL) {
fprintf(stderr,"launch local cast error");
exit(1);
}
ctx = skynet_context_new("snlua", "launcher");
if (ctx) {
skynet_command(ctx, "REG", ".launcher");
ctx = skynet_context_new("snlua", config->start);
}
_start(config->thread);
skynet_socket_free();
}
int
logger_init(struct logger * inst, struct skynet_context *ctx, const char * parm) {
if (parm) {
inst->handle = fopen(parm,"w");
if (inst->handle == NULL) {
return 1;
}
inst->filename = skynet_malloc(strlen(parm)+1);
strcpy(inst->filename, parm);
inst->close = 1;
} else {
inst->handle = stdout;
}
if (inst->handle) {
skynet_callback(ctx, inst, logger_cb);
skynet_command(ctx, "REG", ".logger");
return 0;
}
return 1;
}
int
logger_init(struct logger * inst, struct skynet_context *ctx, const char * parm) {
if (parm) {
inst->handle = fopen(parm,"w");
if (inst->handle == NULL) {
return 1;
}
inst->close = 1;
} else {
inst->handle = stdout;
}
#ifdef _MSC_VER
_wsetlocale(0, L"chs");
#endif
if (inst->handle) {
skynet_callback(ctx, inst, _logger);
skynet_command(ctx, "REG", ".logger");
return 0;
}
return 1;
}
// 多播的主要处理函数
static int
_maincb(struct skynet_context * context, void * ud, int type, int session, uint32_t source, const void * msg, size_t sz) {
struct skynet_multicast_group *g = ud;
// PTYPE_SYSTEM 协议控制命令
if (type == PTYPE_SYSTEM) {
char cmd = '\0';
uint32_t handle = 0;
sscanf(msg,"%c %x",&cmd,&handle); // 格式化参数
if (handle == 0) {
skynet_error(context, "Invalid handle %s",msg);
return 0;
}
// 简单的命令协议
switch (cmd) {
case 'E':
skynet_multicast_entergroup(g, handle);
break;
case 'L':
skynet_multicast_leavegroup(g, handle);
break;
case 'C':
skynet_command(context, "EXIT", NULL);
break;
default:
skynet_error(context, "Invalid command %s",msg);
break;
}
return 0;
}
// 发送消息出去
else {
sz |= type << HANDLE_REMOTE_SHIFT;
struct skynet_multicast_message * mc = skynet_multicast_create(msg, sz, source);
skynet_multicast_castgroup(context, g, mc);
return 1;
}
}
static int
_load(lua_State *L, char ** filename) {
const char * name = strsep(filename, " \r\n");
const char * path = skynet_command(NULL, "GETENV", "luaservice");
while (path[0]) {
int pathlen;
char * pathend = strchr(path,';');
if (pathend) {
pathlen = pathend - path;
} else {
pathlen = strlen(path);
}
int r = _try_load(L, path, pathlen, name);
if (r >=0) {
return r;
}
path+=pathlen;
if (path[0]==';')
++path;
}
return -1;
}
static int
_cb(struct skynet_context * context, void * ud, int session, uint32_t source, const void * msg, size_t sz) {
struct broker * b = ud;
if (b->init < DEFAULT_NUMBER) {
if (source != b->launcher)
return 0;
char addr[sz+1];
memcpy(addr, msg, sz);
addr[sz] = '\0';
uint32_t address = strtoul(addr+1, NULL, 16);
assert(address != 0);
_init(b, session, address);
if (b->init == DEFAULT_NUMBER) {
skynet_command(context, "REG", b->name);
skynet_send(context, 0, b->launcher, 0, NULL, 0, 0);
}
} else {
_forward(b, context);
}
return 0;
}