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| version 1.25, 2001/08/23 11:57:15 | version 1.36, 2001/09/18 16:05:42 |
|---|---|
| Line 14 static const char *RCSId="$Id$"; | Line 14 static const char *RCSId="$Id$"; |
| #include "pa_common.h" | #include "pa_common.h" |
| #include "pa_threads.h" | #include "pa_threads.h" |
| #include "pa_sapi.h" | |
| // globals | // globals |
| SQL_Driver_manager *SQL_driver_manager; | SQL_Driver_manager *SQL_driver_manager; |
| // consts | // consts |
| const char *LIBRARY_CREATE_FUNC_NAME="create"; | |
| const int EXPIRE_UNUSED_CONNECTION_SECONDS=60; | const int EXPIRE_UNUSED_CONNECTION_SECONDS=60; |
| const int CHECK_EXPIRED_CONNECTIONS_SECONDS=60*2; | const int CHECK_EXPIRED_CONNECTIONS_SECONDS=EXPIRE_UNUSED_CONNECTION_SECONDS*2; |
| /// SQL_Driver_services Pooled implementation | /// SQL_Driver_services Pooled implementation |
| Line 52 private: | Line 49 private: |
| // SQL_Driver_manager | // SQL_Driver_manager |
| /// @param request_url protocol://[driver-dependent] | /// @param request_url protocol://[driver-dependent] |
| SQL_Connection& SQL_Driver_manager::get_connection(const String& request_url, | SQL_Connection& SQL_Driver_manager::get_connection(const String& request_url, |
| const String& request_origin, | |
| Table *protocol2driver_and_client) { | Table *protocol2driver_and_client) { |
| Pool& pool=request_url.pool(); // request pool | Pool& pool=request_origin.pool(); // request pool |
| // we have table for locating protocol's library | // we have table for locating protocol's library |
| if(!protocol2driver_and_client) | if(!protocol2driver_and_client) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &request_url, | &request_url, |
| "$SQL:drivers table must be defined"); | "$"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 *result=get_connection_from_cache(request_url); | SQL_Connection *result=get_connection_from_cache(request_url); |
| Line 76 SQL_Connection& SQL_Driver_manager::get_ | Line 74 SQL_Connection& SQL_Driver_manager::get_ |
| int pos=request_url.pos("://", 3); | int pos=request_url.pos("://", 3); |
| if(pos<0) | if(pos<0) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| &request_url, | request_url.size()?&request_url:&request_origin, |
| "no protocol specified"); // NOTE: not THROW, but PTHROW | "connection string must start with protocol://"); // NOTE: not THROW, but PTHROW |
| // make global_url C-string on global pool | // make global_url C-string on global pool |
| request_url_cstr=request_url.cstr(String::UL_AS_IS); | request_url_cstr=request_url.cstr(String::UL_AS_IS); |
| Line 116 SQL_Connection& SQL_Driver_manager::get_ | Line 114 SQL_Connection& SQL_Driver_manager::get_ |
| "undefined protocol '%s'", | "undefined protocol '%s'", |
| request_protocol_cstr); | request_protocol_cstr); |
| const char *filename=library->cstr(String::UL_FILE_NAME); | if(lt_dlinit()) |
| PTHROW(0, 0, | |
| library, | |
| "prepare to dynamic loading failed, %s", lt_dlerror()); | |
| const char *filename=library->cstr(String::UL_FILE_SPEC); | |
| lt_dlhandle handle=lt_dlopen(filename); | lt_dlhandle handle=lt_dlopen(filename); |
| if (!handle) | if (!handle) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| Line 124 SQL_Connection& SQL_Driver_manager::get_ | Line 127 SQL_Connection& SQL_Driver_manager::get_ |
| "can not open the module, %s", lt_dlerror()); | "can not open the module, %s", lt_dlerror()); |
| SQL_Driver_create_func create=(SQL_Driver_create_func)lt_dlsym(handle, | SQL_Driver_create_func create=(SQL_Driver_create_func)lt_dlsym(handle, |
| LIBRARY_CREATE_FUNC_NAME); | SQL_DRIVER_CREATE_NAME); |
| if(!create) | if(!create) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| library, | library, |
| "function '%s' was not found", LIBRARY_CREATE_FUNC_NAME); | "function '"SQL_DRIVER_CREATE_NAME"' was not found"); |
| // create library-driver! | // create library-driver! |
| driver=(*create)(); | driver=(*create)(); |
| Line 145 SQL_Connection& SQL_Driver_manager::get_ | Line 148 SQL_Connection& SQL_Driver_manager::get_ |
| bool specified_dlopen_file_spec=dlopen_file_spec && dlopen_file_spec->size(); | bool specified_dlopen_file_spec=dlopen_file_spec && dlopen_file_spec->size(); |
| const char *dlopen_file_spec_cstr= | const char *dlopen_file_spec_cstr= |
| specified_dlopen_file_spec? | specified_dlopen_file_spec? |
| dlopen_file_spec->cstr(String::UL_FILE_NAME):0; | dlopen_file_spec->cstr(String::UL_FILE_SPEC):0; |
| if(const char *error=driver->initialize( | if(const char *error=driver->initialize( |
| dlopen_file_spec_cstr)) | dlopen_file_spec_cstr)) |
| PTHROW(0, 0, | PTHROW(0, 0, |
| Line 229 static void expire_connection(Array::Ite | Line 232 static void expire_connection(Array::Ite |
| SQL_Connection& connection=*static_cast<SQL_Connection *>(value); | SQL_Connection& connection=*static_cast<SQL_Connection *>(value); |
| time_t older_dies=reinterpret_cast<time_t>(info); | time_t older_dies=reinterpret_cast<time_t>(info); |
| if(connection.expired(older_dies)) | if(connection.connected() && connection.expired(older_dies)) |
| connection.disconnect(); | connection.disconnect(); |
| } | } |
| static void expire_connections(const Hash::Key& key, Hash::Val *value, void *info) { | static void expire_connections(const Hash::Key& key, Hash::Val *value, void *info) { |