1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
extern "C" {
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
}
#include <string.h>
#include <string>
#include <map>
//nanomsg things
#include <nn.h>
#include <tcp.h>
#include <pair.h>
#include <ipc.h>
#include <pipeline.h>
#include <pubsub.h>
#include <survey.h>
#include <bus.h>
#include "load_net.hpp"
//#include <zmq.h>
#include "../util/hashmap.h"
std::map<int,std::map<std::string,int>> netfuncs;
void gameloop_net(lua_State* L){
//printf("Doing net of gameloop\n");
for(std::map<int,std::map<std::string,int>>::iterator it = netfuncs.begin(); it != netfuncs.end(); ++it){
//printf("Looking for new data for socket %d\n",it->first);
char* buf = NULL;
int bytes = nn_recv(it->first, &buf, NN_MSG,NN_DONTWAIT);
//printf("After recv\n");
if(bytes < 0 && nn_errno() != EAGAIN){
lua_pushstring(L,"Failed to receive");
lua_error(L);
}else if( bytes < 0 && nn_errno() == EAGAIN){
//do nothing
}else{
//find how long until the first null character
int msglen = strlen(buf);
char msg[msglen];
msg[msglen] = '\0';
sprintf(msg,"%s",buf);
std::map<std::string,int> themap = it->second;
std::string s = std::string(msg);
std::map<std::string,int>::iterator in = themap.find(s);
if(in != themap.end()){
lua_rawgeti(L,LUA_REGISTRYINDEX,(*in).second);
lua_newtable(L);
lua_call(L,1,0);
}
nn_freemsg(buf);
}
}
//hashmap_iterate(netfuncs,check_socket,0);
}
int bindsocket(lua_State*L){
const char* s = lua_tostring(L,-1);
lua_pushstring(L,"fd");
lua_gettable(L,-2);
lua_pop(L,2);
int fd = lua_tonumber(L,-1);
int id = nn_bind(fd,s);
if(id < 0){
const char* errstr = nn_strerror(nn_errno());
char* failmsg = "Failed to bind socket: ";
int faillen = strlen(failmsg + 2);
char buf[faillen + strlen(errstr)];
sprintf(buf,"%s%s\n",failmsg,errstr);
lua_pushstring(L,buf);
lua_error(L);
}
lua_pushstring(L,"endpoint");
lua_pushinteger(L,id);
lua_settable(L,-3);
netfuncs[fd] = std::map<std::string,int>();
return 0;
}
int connectsocket(lua_State* L){
const char* s = lua_tostring(L,-1);
lua_pushstring(L,"fd");
lua_gettable(L,-2);
int fd = lua_tonumber(L,-1);
lua_pop(L,2);
int id = nn_connect(fd,s);
lua_pushstring(L,"endpoint");
lua_pushinteger(L,id);
lua_settable(L,-3);
netfuncs[fd] = std::map<std::string,int>();
return 0;
}
int send(lua_State* L){
const char* data = lua_tostring(L,-1);
lua_pushstring(L,"fd");
lua_gettable(L,-2);
int fd = lua_tonumber(L,-1);
int dlen = strlen(data);
int err = nn_send(fd,(void*)data,dlen,0);
if(err < 0){
const char* errstr = nn_strerror(nn_errno());
char* failmsg = "Failed to bind socket: ";
int faillen = strlen(failmsg + 2);
char buf[faillen + strlen(errstr)];
sprintf(buf,"%s%s\n",failmsg,errstr);
lua_pushstring(L,buf);
lua_error(L);
}
return 0;
}
//LUA:
//socket:receive(s_name,function(socket))
int netreceive(lua_State* L){
const char* name = lua_tostring(L,-2);
int slen = strlen(name);
std::string s = std::string(name);
int func = luaL_ref(L,LUA_REGISTRYINDEX);
lua_pushstring(L,"fd");
lua_gettable(L,-2);
int fd = lua_tonumber(L,-1);
lua_pop(L,1);
netfuncs[fd].insert(std::pair<std::string, int>(s,func));
return 0;
}
int socketFactory(lua_State*L){
int domain = luaL_optint(L,-1,0);
int type = luaL_optint(L,-2,0);
int c = nn_socket(AF_SP,NN_PAIR);
if(c < 0){
lua_pushstring(L,"Failed to create socket");
lua_error(L);
}
luaL_getmetatable(L,"net.socket");
lua_setmetatable(L,-2);
lua_newtable(L);
lua_pushstring(L,"fd");
lua_pushinteger(L,c);
lua_settable(L,-3);
lua_pushstring(L,"bind");
lua_pushcfunction(L,bindsocket);
lua_settable(L,-3);
lua_pushstring(L,"connect");
lua_pushcfunction(L,connectsocket);
lua_settable(L,-3);
lua_pushstring(L,"send");
lua_pushcfunction(L,send);
lua_settable(L,-3);
lua_pushstring(L,"receive");
lua_pushcfunction(L,netreceive);
lua_settable(L,-3);
return 1;
}
static const struct luaL_Reg socket_m[] = {
{"bind", bindsocket},
{NULL,NULL}
};
#define set_const(l,x) lua_pushstring(l,#x);lua_pushinteger(l,x);lua_settable(l,-3);
void loadNetLibs(lua_State* L){
//A table to hold all our net funcs
lua_newtable(L);
//Push some enums
set_const(L,AF_SP);
set_const(L,AF_SP_RAW);
set_const(L,NN_PROTO_PAIR);
set_const(L,NN_PAIR);
set_const(L,NN_SUB);
set_const(L,NN_SUB_SUBSCRIBE);
set_const(L,NN_PUB);
set_const(L,NN_SUB_UNSUBSCRIBE);
set_const(L,NN_PUSH);
set_const(L,NN_PULL);
set_const(L,NN_PROTO_PIPELINE);
set_const(L,NN_PROTO_SURVEY);
set_const(L,NN_SURVEYOR);
set_const(L,NN_RESPONDENT);
set_const(L,NN_SURVEYOR_DEADLINE);
set_const(L,NN_TCP_NODELAY);
set_const(L,NN_TCP);
set_const(L,NN_PROTO_BUS);
set_const(L,NN_BUS);
set_const(L,NN_DONTWAIT);
set_const(L,PROTO_SP);
set_const(L,SP_HDR);
lua_pushstring(L,"create_socket");
lua_pushcfunction(L,socketFactory);
lua_settable(L,-3);
//Set the table to gobal "net"
lua_setglobal(L,"net");
//Create the metatable for sockets
luaL_newmetatable(L,"net.socket");
lua_pushvalue(L,-1);
lua_setfield(L,-2,"__index");
luaL_register(L,NULL,socket_m);
}
|
