1
2 // vim:sw=2:ai
3
4 /*
5 * Copyright (C) 2010 DeNA Co.,Ltd.. All rights reserved.
6 * See COPYRIGHT.txt for details.
7 */
8
9 #include <my_global.h>
10 #include <memory>
11 #include <string>
12 #include <stdio.h>
13
14 #include "config.hpp"
15 #include "hstcpsvr.hpp"
16 #include "string_util.hpp"
17 #include "mysql_incl.hpp"
18
19 #define DBG_LOG \
20 if (dena::verbose_level >= 100) { \
21 fprintf(stderr, "%s %p\n", __PRETTY_FUNCTION__, this); \
22 }
23 #define DBG_DO(x) if (dena::verbose_level >= 100) { x; }
24
25 #define DBG_DIR(x)
26
27 using namespace dena;
28
29 static char *handlersocket_address = 0;
30 static char *handlersocket_port = 0;
31 static char *handlersocket_port_wr = 0;
32 static unsigned int handlersocket_epoll = 1;
33 static unsigned int handlersocket_threads = 32;
34 static unsigned int handlersocket_threads_wr = 1;
35 static unsigned int handlersocket_timeout = 30;
36 static unsigned int handlersocket_backlog = 32768;
37 static unsigned int handlersocket_sndbuf = 0;
38 static unsigned int handlersocket_rcvbuf = 0;
39 static unsigned int handlersocket_readsize = 0;
40 static unsigned int handlersocket_accept_balance = 0;
41 static unsigned int handlersocket_wrlock_timeout = 0;
42 static char *handlersocket_plain_secret = 0;
43 static char *handlersocket_plain_secret_wr = 0;
44
45 struct daemon_handlersocket_data {
46 hstcpsvr_ptr hssvr_rd;
47 hstcpsvr_ptr hssvr_wr;
48 };
49
50 static int
daemon_handlersocket_init(void * p)51 daemon_handlersocket_init(void *p)
52 {
53 DENA_VERBOSE(10, fprintf(stderr, "handlersocket: initialized\n"));
54 config conf;
55 conf["use_epoll"] = handlersocket_epoll ? "1" : "0";
56 if (handlersocket_address) {
57 conf["host"] = handlersocket_address;
58 }
59 if (handlersocket_port) {
60 conf["port"] = handlersocket_port;
61 }
62 /*
63 * unix domain socket
64 * conf["host"] = "/";
65 * conf["port"] = "/tmp/handlersocket";
66 */
67 if (handlersocket_threads > 0) {
68 conf["num_threads"] = to_stdstring(handlersocket_threads);
69 } else {
70 conf["num_threads"] = "1";
71 }
72 conf["timeout"] = to_stdstring(handlersocket_timeout);
73 conf["listen_backlog"] = to_stdstring(handlersocket_backlog);
74 conf["sndbuf"] = to_stdstring(handlersocket_sndbuf);
75 conf["rcvbuf"] = to_stdstring(handlersocket_rcvbuf);
76 conf["readsize"] = to_stdstring(handlersocket_readsize);
77 conf["accept_balance"] = to_stdstring(handlersocket_accept_balance);
78 conf["wrlock_timeout"] = to_stdstring(handlersocket_wrlock_timeout);
79 std::auto_ptr<daemon_handlersocket_data> ap(new daemon_handlersocket_data);
80 if (handlersocket_port != 0 && handlersocket_port_wr != handlersocket_port) {
81 conf["port"] = handlersocket_port;
82 if (handlersocket_plain_secret) {
83 conf["plain_secret"] = handlersocket_plain_secret;
84 }
85 ap->hssvr_rd = hstcpsvr_i::create(conf);
86 ap->hssvr_rd->start_listen();
87 }
88 if (handlersocket_port_wr != 0) {
89 if (handlersocket_threads_wr > 0) {
90 conf["num_threads"] = to_stdstring(handlersocket_threads_wr);
91 }
92 conf["port"] = handlersocket_port_wr;
93 conf["for_write"] = "1";
94 conf["plain_secret"] = "";
95 if (handlersocket_plain_secret_wr) {
96 conf["plain_secret"] = handlersocket_plain_secret_wr;
97 }
98 ap->hssvr_wr = hstcpsvr_i::create(conf);
99 ap->hssvr_wr->start_listen();
100 }
101 st_plugin_int *const plugin = static_cast<st_plugin_int *>(p);
102 plugin->data = ap.release();
103 return 0;
104 }
105
106 static int
daemon_handlersocket_deinit(void * p)107 daemon_handlersocket_deinit(void *p)
108 {
109 DENA_VERBOSE(10, fprintf(stderr, "handlersocket: terminated\n"));
110 st_plugin_int *const plugin = static_cast<st_plugin_int *>(p);
111 daemon_handlersocket_data *ptr =
112 static_cast<daemon_handlersocket_data *>(plugin->data);
113 delete ptr;
114 return 0;
115 }
116
117 static struct st_mysql_daemon daemon_handlersocket_plugin = {
118 MYSQL_DAEMON_INTERFACE_VERSION
119 };
120
121 static MYSQL_SYSVAR_UINT(verbose, dena::verbose_level, 0,
122 "0..10000", 0, 0, 10 /* default */, 0, 10000, 0);
123 static MYSQL_SYSVAR_UINT(epoll, handlersocket_epoll, PLUGIN_VAR_READONLY,
124 "0..1", 0, 0, 1 /* default */, 0, 1, 0);
125 static MYSQL_SYSVAR_STR(address, handlersocket_address,
126 PLUGIN_VAR_READONLY | PLUGIN_VAR_MEMALLOC, "", NULL, NULL, NULL);
127 static MYSQL_SYSVAR_STR(port, handlersocket_port,
128 PLUGIN_VAR_READONLY | PLUGIN_VAR_MEMALLOC, "", NULL, NULL, NULL);
129 static MYSQL_SYSVAR_STR(port_wr, handlersocket_port_wr,
130 PLUGIN_VAR_READONLY | PLUGIN_VAR_MEMALLOC, "", NULL, NULL, NULL);
131 static MYSQL_SYSVAR_UINT(threads, handlersocket_threads, PLUGIN_VAR_READONLY,
132 "1..3000", 0, 0, 16 /* default */, 1, 3000, 0);
133 static MYSQL_SYSVAR_UINT(threads_wr, handlersocket_threads_wr,
134 PLUGIN_VAR_READONLY, "1..3000", 0, 0, 1 /* default */, 1, 3000, 0);
135 static MYSQL_SYSVAR_UINT(timeout, handlersocket_timeout, PLUGIN_VAR_READONLY,
136 "30..3600", 0, 0, 300 /* default */, 30, 3600, 0);
137 static MYSQL_SYSVAR_UINT(backlog, handlersocket_backlog, PLUGIN_VAR_READONLY,
138 "5..1000000", 0, 0, 32768 /* default */, 5, 1000000, 0);
139 static MYSQL_SYSVAR_UINT(sndbuf, handlersocket_sndbuf, PLUGIN_VAR_READONLY,
140 "0..16777216", 0, 0, 0 /* default */, 0, 16777216, 0);
141 static MYSQL_SYSVAR_UINT(rcvbuf, handlersocket_rcvbuf, PLUGIN_VAR_READONLY,
142 "0..16777216", 0, 0, 0 /* default */, 0, 16777216, 0);
143 static MYSQL_SYSVAR_UINT(readsize, handlersocket_readsize, PLUGIN_VAR_READONLY,
144 "0..16777216", 0, 0, 0 /* default */, 0, 16777216, 0);
145 static MYSQL_SYSVAR_UINT(accept_balance, handlersocket_accept_balance,
146 PLUGIN_VAR_READONLY, "0..10000", 0, 0, 0 /* default */, 0, 10000, 0);
147 static MYSQL_SYSVAR_UINT(wrlock_timeout, handlersocket_wrlock_timeout,
148 PLUGIN_VAR_READONLY, "0..3600", 0, 0, 12 /* default */, 0, 3600, 0);
149 static MYSQL_SYSVAR_STR(plain_secret, handlersocket_plain_secret,
150 PLUGIN_VAR_READONLY | PLUGIN_VAR_MEMALLOC, "", NULL, NULL, NULL);
151 static MYSQL_SYSVAR_STR(plain_secret_wr, handlersocket_plain_secret_wr,
152 PLUGIN_VAR_READONLY | PLUGIN_VAR_MEMALLOC, "", NULL, NULL, NULL);
153
154
155 /* warning: type-punning to incomplete type might break strict-aliasing
156 * rules */
157 static struct st_mysql_sys_var *daemon_handlersocket_system_variables[] = {
158 MYSQL_SYSVAR(verbose),
159 MYSQL_SYSVAR(address),
160 MYSQL_SYSVAR(port),
161 MYSQL_SYSVAR(port_wr),
162 MYSQL_SYSVAR(epoll),
163 MYSQL_SYSVAR(threads),
164 MYSQL_SYSVAR(threads_wr),
165 MYSQL_SYSVAR(timeout),
166 MYSQL_SYSVAR(backlog),
167 MYSQL_SYSVAR(sndbuf),
168 MYSQL_SYSVAR(rcvbuf),
169 MYSQL_SYSVAR(readsize),
170 MYSQL_SYSVAR(accept_balance),
171 MYSQL_SYSVAR(wrlock_timeout),
172 MYSQL_SYSVAR(plain_secret),
173 MYSQL_SYSVAR(plain_secret_wr),
174 0
175 };
176
177 static SHOW_VAR hs_status_variables[] = {
178 {"table_open", (char*) &open_tables_count, SHOW_LONGLONG},
179 {"table_close", (char*) &close_tables_count, SHOW_LONGLONG},
180 {"table_lock", (char*) &lock_tables_count, SHOW_LONGLONG},
181 {"table_unlock", (char*) &unlock_tables_count, SHOW_LONGLONG},
182 #if 0
183 {"index_exec", (char*) &index_exec_count, SHOW_LONGLONG},
184 #endif
185 {NullS, NullS, SHOW_LONG}
186 };
187
show_hs_vars(THD * thd,SHOW_VAR * var,char * buff)188 static int show_hs_vars(THD *thd, SHOW_VAR *var, char *buff)
189 {
190 var->type= SHOW_ARRAY;
191 var->value= (char *) &hs_status_variables;
192 return 0;
193 }
194
195 static SHOW_VAR daemon_handlersocket_status_variables[] = {
196 {"Hs", (char*) show_hs_vars, SHOW_FUNC},
197 {NullS, NullS, SHOW_LONG}
198 };
199
200
maria_declare_plugin(handlersocket)201 maria_declare_plugin(handlersocket)
202 {
203 MYSQL_DAEMON_PLUGIN,
204 &daemon_handlersocket_plugin,
205 "handlersocket",
206 "higuchi dot akira at dena dot jp",
207 "Direct access into InnoDB",
208 PLUGIN_LICENSE_BSD,
209 daemon_handlersocket_init,
210 daemon_handlersocket_deinit,
211 0x0100 /* 1.0 */,
212 daemon_handlersocket_status_variables,
213 daemon_handlersocket_system_variables,
214 "1.0",
215 MariaDB_PLUGIN_MATURITY_BETA
216 }
217 maria_declare_plugin_end;
218