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| version 1.87, 2007/04/23 10:30:32 | version 1.97, 2017/02/07 22:00:44 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: sql driver manager implementation. | Parser: sql driver manager implementation. |
| Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2017 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| */ | */ |
| static const char * const IDENT_SQL_DRIVER_MANAGER_C="$Date$"; | |
| #include "pa_sql_driver_manager.h" | #include "pa_sql_driver_manager.h" |
| #include "ltdl.h" | #include "ltdl.h" |
| #include "pa_threads.h" | #include "pa_threads.h" |
| Line 17 static const char * const IDENT_SQL_DRIV | Line 15 static const char * const IDENT_SQL_DRIV |
| #include "pa_vtable.h" | #include "pa_vtable.h" |
| #include "pa_charsets.h" | #include "pa_charsets.h" |
| volatile const char * IDENT_PA_SQL_DRIVER_MANAGER_C="$Id$" IDENT_PA_SQL_DRIVER_MANAGER_H IDENT_PA_SQL_CONNECTION_H; | |
| // globals | // globals |
| SQL_Driver_manager* SQL_driver_manager=0; | SQL_Driver_manager* SQL_driver_manager=0; |
| Line 65 void SQL_Driver_services_impl::transcode | Line 65 void SQL_Driver_services_impl::transcode |
| charset_from_object=cache[0].object; | charset_from_object=cache[0].object; |
| } else { | } else { |
| cache[0].name=charset_from_name; | cache[0].name=charset_from_name; |
| cache[0].object=charset_from_object=&charsets.get(charset_from_name); | cache[0].object=charset_from_object=&pa_charsets.get_direct(charset_from_name); |
| } | } |
| if(charset_to_name==cache[1].name) { | if(charset_to_name==cache[1].name) { |
| charset_to_object=cache[1].object; | charset_to_object=cache[1].object; |
| } else { | } else { |
| cache[1].name=charset_to_name; | cache[1].name=charset_to_name; |
| cache[1].object=charset_to_object=&charsets.get(charset_to_name); | cache[1].object=charset_to_object=&pa_charsets.get_direct(charset_to_name); |
| } | } |
| String::C result=Charset::transcode(String::C(src, src_length), | String::C result=Charset::transcode(String::C(src, src_length), *charset_from_object, *charset_to_object); |
| *charset_from_object, | |
| *charset_to_object); | |
| dst=result.str; | dst=result.str; |
| dst_length=result.length; | dst_length=result.length; |
| } catch(const Exception& e) { | } catch(const Exception& e) { |
| Line 101 static void expire_connections(SQL_Drive | Line 99 static void expire_connections(SQL_Drive |
| // SQL_Driver_manager | // SQL_Driver_manager |
| SQL_Driver_manager::SQL_Driver_manager(): | SQL_Driver_manager::SQL_Driver_manager(): prev_expiration_pass_time(0) {} |
| is_dlinited(false), prev_expiration_pass_time(0) { | |
| } | |
| SQL_Driver_manager::~SQL_Driver_manager() { | SQL_Driver_manager::~SQL_Driver_manager() { |
| connection_cache.for_each<time_t>(expire_connections, time(0)+(time_t)10/*=in future=expire all*/); | connection_cache.for_each<time_t>(expire_connections, time(0)+(time_t)10/*=in future=expire all*/); |
| if(is_dlinited) | |
| lt_dlexit(); | |
| } | } |
| /// @param aurl protocol://[driver-dependent] | /// @param aurl protocol://[driver-dependent] |
| SQL_Connection* SQL_Driver_manager::get_connection(const String& aurl, | SQL_Connection* SQL_Driver_manager::get_connection(const String& aurl, |
| Table *protocol2driver_and_client, | Table *protocol2driver_and_client, |
| const char* arequest_charset) { | const char* arequest_charset, |
| const char* adocument_root) { | |
| // we have table for locating protocol's library | // we have table for locating protocol's library |
| if(!protocol2driver_and_client) | if(!protocol2driver_and_client) |
| throw Exception(PARSER_RUNTIME, | throw Exception(PARSER_RUNTIME, |
| &aurl, | &aurl, |
| "$"MAIN_SQL_NAME":"MAIN_SQL_DRIVERS_NAME" table must be defined"); | "$" MAIN_SQL_NAME ":" MAIN_SQL_DRIVERS_NAME " table must be defined"); |
| // first trying to get cached connection | // first trying to get cached connection |
| SQL_Connection* connection=get_connection_from_cache(aurl); | SQL_Connection* connection=get_connection_from_cache(aurl); |
| Line 169 SQL_Connection* SQL_Driver_manager::get_ | Line 163 SQL_Connection* SQL_Driver_manager::get_ |
| "undefined protocol '%s'", | "undefined protocol '%s'", |
| protocol_cstr); | protocol_cstr); |
| if(!is_dlinited) { | pa_dlinit(); |
| if(lt_dlinit()) | |
| throw Exception(0, | |
| library, | |
| "prepare to dynamic loading failed, %s", lt_dlerror()); | |
| is_dlinited=true; | |
| } | |
| const char* filename=library->cstr(String::L_FILE_SPEC); | const char* filename=library->taint_cstr(String::L_FILE_SPEC); |
| lt_dlhandle handle=lt_dlopen(filename); | lt_dlhandle handle=lt_dlopen(filename); |
| if (!handle) { | if (!handle) { |
| const char* error=lt_dlerror(); | const char* error=lt_dlerror(); |
| Line 192 SQL_Connection* SQL_Driver_manager::get_ | Line 179 SQL_Connection* SQL_Driver_manager::get_ |
| if(!create) | if(!create) |
| throw Exception(0, | throw Exception(0, |
| library, | library, |
| "function '"SQL_DRIVER_CREATE_NAME"' was not found"); | "function '" SQL_DRIVER_CREATE_NAME "' was not found"); |
| // create library-driver! | // create library-driver! |
| driver=(*create)(); | driver=(*create)(); |
| Line 208 SQL_Connection* SQL_Driver_manager::get_ | Line 195 SQL_Connection* SQL_Driver_manager::get_ |
| // initialise by connecting to sql client dynamic link library | // initialise by connecting to sql client dynamic link library |
| char* dlopen_file_spec_cstr= | char* dlopen_file_spec_cstr= |
| dlopen_file_spec && dlopen_file_spec->length()? | dlopen_file_spec && dlopen_file_spec->length()? |
| dlopen_file_spec->cstrm(String::L_AS_IS):0; | dlopen_file_spec->taint_cstrm(String::L_AS_IS):0; |
| if(const char* error=driver->initialize(dlopen_file_spec_cstr)) | if(const char* error=driver->initialize(dlopen_file_spec_cstr)) |
| throw Exception(0, | throw Exception(0, |
| library, | library, |
| Line 220 SQL_Connection* SQL_Driver_manager::get_ | Line 207 SQL_Connection* SQL_Driver_manager::get_ |
| put_driver_to_cache(protocol, driver); | put_driver_to_cache(protocol, driver); |
| } | } |
| connection=new SQL_Connection(aurl, *driver, arequest_charset); | connection=new SQL_Connection(aurl, *driver, arequest_charset, adocument_root); |
| // associate with pool[request] (deassociates at close) | // associate with pool[request] (deassociates at close) |
| connection->set_url(); | connection->set_url(); |
| } | } |