comparison: dbd/mysql/connection.c
dbd/mysql/connection.c
- changeset 1
- 408291a6eb3e
- child 2
- c4f02fc67e5a
equal
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inserted
replaced
| 0:4ff31a4ea1fb | 1:408291a6eb3e |
|---|---|
| 1 #include "dbd_mysql.h" | |
| 2 | |
| 3 int dbd_mysql_statement_create(lua_State *L, connection_t *conn, const char *sql_query); | |
| 4 | |
| 5 static int connection_new(lua_State *L) { | |
| 6 int n = lua_gettop(L); | |
| 7 | |
| 8 connection_t *conn = NULL; | |
| 9 | |
| 10 const char *host = NULL; | |
| 11 const char *user = NULL; | |
| 12 const char *password = NULL; | |
| 13 const char *db = NULL; | |
| 14 int port = 0; | |
| 15 | |
| 16 const char *unix_socket = NULL; /* TODO always NULL */ | |
| 17 int client_flag = 0; /* TODO always 0, set flags from options table */ | |
| 18 | |
| 19 /* db, user, password, host, port */ | |
| 20 switch (n) { | |
| 21 case 5: | |
| 22 if (lua_isnil(L, 5) == 0) | |
| 23 port = luaL_checkint(L, 5); | |
| 24 case 4: | |
| 25 if (lua_isnil(L, 4) == 0) | |
| 26 host = luaL_checkstring(L, 4); | |
| 27 case 3: | |
| 28 if (lua_isnil(L, 3) == 0) | |
| 29 password = luaL_checkstring(L, 3); | |
| 30 case 2: | |
| 31 if (lua_isnil(L, 2) == 0) | |
| 32 user = luaL_checkstring(L, 2); | |
| 33 case 1: | |
| 34 if (lua_isnil(L, 1) == 0) | |
| 35 db = luaL_checkstring(L, 1); | |
| 36 } | |
| 37 | |
| 38 conn = (connection_t *)lua_newuserdata(L, sizeof(connection_t)); | |
| 39 | |
| 40 conn->mysql = mysql_init(NULL); | |
| 41 | |
| 42 if (mysql_real_connect(conn->mysql, host, user, password, db, port, unix_socket, client_flag)) { | |
| 43 luaL_getmetatable(L, DBD_MYSQL_CONNECTION); | |
| 44 lua_setmetatable(L, -2); | |
| 45 } else { | |
| 46 luaL_error(L, "Failed to connect to database: %s", mysql_error(conn->mysql)); | |
| 47 lua_pushnil(L); | |
| 48 } | |
| 49 | |
| 50 return 1; | |
| 51 } | |
| 52 | |
| 53 static int connection_close(lua_State *L) { | |
| 54 connection_t *conn = (connection_t *)luaL_checkudata(L, 1, DBD_MYSQL_CONNECTION); | |
| 55 int disconnect = 0; | |
| 56 | |
| 57 if (conn->mysql) { | |
| 58 mysql_close(conn->mysql); | |
| 59 disconnect = 1; | |
| 60 } | |
| 61 | |
| 62 lua_pushboolean(L, disconnect); | |
| 63 return 1; | |
| 64 } | |
| 65 | |
| 66 static int connection_ping(lua_State *L) { | |
| 67 connection_t *conn = (connection_t *)luaL_checkudata(L, 1, DBD_MYSQL_CONNECTION); | |
| 68 int err = 1; | |
| 69 | |
| 70 if (conn->mysql) { | |
| 71 err = mysql_ping(conn->mysql); | |
| 72 } | |
| 73 | |
| 74 lua_pushboolean(L, !err); | |
| 75 return 1; | |
| 76 } | |
| 77 | |
| 78 static int connection_prepare(lua_State *L) { | |
| 79 connection_t *conn = (connection_t *)luaL_checkudata(L, 1, DBD_MYSQL_CONNECTION); | |
| 80 | |
| 81 if (conn->mysql) { | |
| 82 return dbd_mysql_statement_create(L, conn, luaL_checkstring(L, 2)); | |
| 83 } | |
| 84 | |
| 85 lua_pushnil(L); | |
| 86 return 1; | |
| 87 } | |
| 88 | |
| 89 | |
| 90 static int connection_gc(lua_State *L) { | |
| 91 /* always close the connection */ | |
| 92 connection_close(L); | |
| 93 | |
| 94 return 0; | |
| 95 } | |
| 96 | |
| 97 static const luaL_Reg connection_methods[] = { | |
| 98 {"close", connection_close}, | |
| 99 {"ping", connection_ping}, | |
| 100 {"prepare", connection_prepare}, | |
| 101 {NULL, NULL} | |
| 102 }; | |
| 103 | |
| 104 static const luaL_Reg connection_class_methods[] = { | |
| 105 {"New", connection_new}, | |
| 106 {NULL, NULL} | |
| 107 }; | |
| 108 | |
| 109 int dbd_mysql_connection(lua_State *L) { | |
| 110 luaL_newmetatable(L, DBD_MYSQL_CONNECTION); | |
| 111 luaL_register(L, 0, connection_methods); | |
| 112 lua_pushvalue(L,-1); | |
| 113 lua_setfield(L, -2, "__index"); | |
| 114 | |
| 115 lua_pushcfunction(L, connection_gc); | |
| 116 lua_setfield(L, -2, "__gc"); | |
| 117 | |
| 118 luaL_register(L, DBD_MYSQL_CONNECTION, connection_class_methods); | |
| 119 | |
| 120 return 1; | |
| 121 } | |
| 122 |
