Main Page | Namespace List | Class Hierarchy | Class List | File List | Namespace Members | Class Members | File Members

# connection.h

Go to the documentation of this file.

    00001
    00002
    00003
    00004
    00005
    00006
    00007
    00008
    00009
    00010
    00011 /***********************************************************************
    00012  Copyright (c) 1998 by Kevin Atkinson, (c) 1999, 2000 and 2001 by
    00013  MySQL AB, and (c) 2004-2007 by Educational Technology Resources, Inc.
    00014  Others may also hold copyrights on code in this file.  See the CREDITS
    00015  file in the top directory of the distribution for details.
    00016
    00017  This file is part of MySQL++.
    00018
    00019  MySQL++ is free software; you can redistribute it and/or modify it
    00020  under the terms of the GNU Lesser General Public License as published
    00021  by the Free Software Foundation; either version 2.1 of the License, or
    00022  (at your option) any later version.
    00023
    00024  MySQL++ is distributed in the hope that it will be useful, but WITHOUT
    00025  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    00026  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
    00027  License for more details.
    00028
    00029  You should have received a copy of the GNU Lesser General Public
    00030  License along with MySQL++; if not, write to the Free Software
    00031  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
    00032  USA
    00033 ***********************************************************************/
    00034
    00035 #ifndef MYSQLPP_CONNECTION_H
    00036 #define MYSQLPP_CONNECTION_H
    00037
    00038 #include "common.h"
    00039
    00040 #include "lockable.h"
    00041 #include "noexceptions.h"
    00042
    00043 #include <deque>
    00044 #include <string>
    00045
    00046 namespace mysqlpp {
    00047
    00048 #if !defined(DOXYGEN_IGNORE)
    00049 // Make Doxygen ignore this
    00050 class MYSQLPP_EXPORT Query;
    00051 #endif
    00052
    00054
    00055 class MYSQLPP_EXPORT Connection : public OptionalExceptions, public Lockable
    00056 {
    00057 public:
    00059         enum OptionArgType {
    00060                 opt_type_none,
    00061                 opt_type_string,
    00062                 opt_type_integer,
    00063                 opt_type_boolean
    00064         };
    00065
    00071         enum Option
    00072         {
    00073                 // Symbolic "first" option, before real options.  Never send
    00074                 // this to set_option()!
    00075                 opt_FIRST = -1,
    00076
    00077                 opt_connect_timeout = 0,
    00078                 opt_compress,
    00079                 opt_named_pipe,
    00080                 opt_init_command,
    00081                 opt_read_default_file,
    00082                 opt_read_default_group,
    00083                 opt_set_charset_dir,
    00084                 opt_set_charset_name,
    00085                 opt_local_infile,
    00086                 opt_protocol,
    00087                 opt_shared_memory_base_name,
    00088                 opt_read_timeout,
    00089                 opt_write_timeout,
    00090                 opt_use_result,
    00091                 opt_use_remote_connection,
    00092                 opt_use_embedded_connection,
    00093                 opt_guess_connection,
    00094                 opt_set_client_ip,
    00095                 opt_secure_auth,
    00096
    00097                 // Set multi-query statement support; no argument
    00098                 opt_multi_statements,
    00099
    00100                 // Set reporting of data truncation errors
    00101                 opt_report_data_truncation,
    00102
    00103                 // Enable or disable automatic reconnection to the server if
    00104                 // the connection is found to have been lost.
    00105                 opt_reconnect,
    00106
    00107                 // Number of options supported.  Never send this to
    00108                 // set_option()!
    00109                 opt_COUNT
    00110         };
    00111
    00115         Connection(bool te = true);
    00116
    00143         Connection(const char* db, const char* host = "",
    00144                         const char* user = "", const char* passwd = "",
    00145                         uint port = 0, my_bool compress = 0,
    00146                         unsigned int connect_timeout = 60, cchar* socket_name = 0,
    00147                         unsigned int client_flag = 0);
    00148
    00153         Connection(const Connection& other);
    00154
    00159         bool connect(const MYSQL& mysql);
    00160
    00162         ~Connection();
    00163
    00172         bool connect(cchar* db = "", cchar* host = "",
    00173                         cchar* user = "", cchar* passwd = "", uint port = 0,
    00174                         my_bool compress = 0, unsigned int connect_timeout = 60,
    00175                         cchar* socket_name = 0, unsigned int client_flag = 0);
    00176
    00180         void close()
    00181         {
    00182                 mysql_close(&mysql_);
    00183                 is_connected_ = false;
    00184         }
    00185
    00188         std::string info();
    00189
    00193         bool connected() const
    00194         {
    00195                 return is_connected_;
    00196         }
    00197
    00199         bool success() const
    00200         {
    00201                 return success_;
    00202         }
    00203
    00205         void purge() { close(); }
    00206
    00214         Query query();
    00215
    00231         operator bool() { return success(); }
    00232
    00235         Connection& operator=(const Connection& rhs);
    00236
    00241         const char* error()
    00242         {
    00243                 return mysql_error(&mysql_);
    00244         }
    00245
    00250         int errnum() { return mysql_errno(&mysql_); }
    00251
    00260         int refresh(unsigned int refresh_options)
    00261         {
    00262                 return mysql_refresh(&mysql_, refresh_options);
    00263         }
    00264
    00276         int ping();
    00277
    00283         int kill(unsigned long pid)
    00284         {
    00285                 return mysql_kill(&mysql_, pid);
    00286         }
    00287
    00291         std::string client_info()
    00292         {
    00293                 return std::string(mysql_get_client_info());
    00294         }
    00295
    00302         std::string host_info()
    00303         {
    00304                 return std::string(mysql_get_host_info(&mysql_));
    00305         }
    00306
    00311         int proto_info()
    00312         {
    00313                 return mysql_get_proto_info(&mysql_);
    00314         }
    00315
    00319         std::string server_info()
    00320         {
    00321                 return std::string(mysql_get_server_info(&mysql_));
    00322         }
    00323
    00330         std::string stat()
    00331         {
    00332                 return std::string(mysql_stat(&mysql_));
    00333         }
    00334
    00340         bool create_db(const std::string& db);
    00341
    00347         bool drop_db(const std::string& db);
    00348
    00350         bool select_db(const std::string& db)
    00351         {
    00352                 return select_db(db.c_str());
    00353         }
    00354
    00356         bool select_db(const char* db);
    00357
    00365         bool reload();
    00366
    00372         bool shutdown();
    00373
    00375         st_mysql_options get_options() const
    00376         {
    00377                 return mysql_.options;
    00378         }
    00379
    00413         bool set_option(Option option);
    00414
    00416         bool set_option(Option option, const char* arg);
    00417
    00419         bool set_option(Option option, unsigned int arg);
    00420
    00422         bool set_option(Option option, bool arg);
    00423
    00426         bool set_option_default(Option option);
    00427
    00430         template <typename T>
    00431         bool set_option_default(Option option, T arg);
    00432
    00434         bool option_set(Option option);
    00435
    00448         void enable_ssl(const char* key = 0,
    00449                         const char* cert = 0, const char* ca = 0,
    00450                         const char* capath = 0, const char* cipher = 0);
    00451
    00455         my_ulonglong affected_rows()
    00456         {
    00457                 return mysql_affected_rows(&mysql_);
    00458         }
    00459
    00466         my_ulonglong insert_id()
    00467         {
    00468                 return mysql_insert_id(&mysql_);
    00469         }
    00470
    00475         std::ostream& api_version(std::ostream& os);
    00476
    00477 protected:
    00479         enum OptionError {
    00480                 opt_err_type,
    00481                 opt_err_value,
    00482                 opt_err_conn
    00483         };
    00484
    00490         void disconnect();
    00491
    00493         bool bad_option(Option option, OptionError error);
    00494
    00496         OptionArgType option_arg_type(Option option);
    00497
    00503         bool set_option_impl(mysql_option moption, const void* arg = 0);
    00504
    00505 #if MYSQL_VERSION_ID >= 40101
    00511         bool set_option_impl(enum_mysql_set_option msoption);
    00512 #endif
    00513
    00517         void copy(const Connection& other);
    00518
    00519 private:
    00520         friend class ResNSel;
    00521         friend class ResUse;
    00522         friend class Query;
    00523
    00524         struct OptionInfo {
    00525                 Option option;
    00526                 OptionArgType arg_type;
    00527                 std::string str_arg;
    00528                 unsigned int int_arg;
    00529                 bool bool_arg;
    00530
    00531                 OptionInfo(Option o) :
    00532                 option(o),
    00533                 arg_type(opt_type_none),
    00534                 int_arg(0),
    00535                 bool_arg(false)
    00536                 {
    00537                 }
    00538
    00539                 OptionInfo(Option o, const char* a) :
    00540                 option(o),
    00541                 arg_type(opt_type_string),
    00542                 str_arg(a),
    00543                 int_arg(0),
    00544                 bool_arg(false)
    00545                 {
    00546                 }
    00547
    00548                 OptionInfo(Option o, unsigned int a) :
    00549                 option(o),
    00550                 arg_type(opt_type_integer),
    00551                 int_arg(a),
    00552                 bool_arg(false)
    00553                 {
    00554                 }
    00555
    00556                 OptionInfo(Option o, bool a) :
    00557                 option(o),
    00558                 arg_type(opt_type_boolean),
    00559                 int_arg(0),
    00560                 bool_arg(a)
    00561                 {
    00562                 }
    00563         };
    00564         typedef std::deque<OptionInfo> OptionList;
    00565         typedef OptionList::const_iterator OptionListIt;
    00566
    00567         MYSQL mysql_;
    00568         bool is_connected_;
    00569         bool connecting_;
    00570         bool success_;
    00571         OptionList applied_options_;
    00572         static OptionArgType legal_opt_arg_types_[];
    00573 };
    00574
    00575
    00576 } // end namespace mysqlpp
    00577
    00578 #endif
    00579