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Diff for /parser3/src/main/pa_stylesheet_manager.C between versions 1.16.2.7 and 1.34

version 1.16.2.7, 2003/03/06 16:15:25 version 1.34, 2020/12/15 17:10:37
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 /** @file  /** @file
         Parser: sql driver manager implementation.          Parser: sql driver manager implementation.
   
         Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)          Copyright (c) 2001-2020 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)
 */  */
 #include "pa_config_includes.h"  #include "pa_config_includes.h"
 #ifdef XML  #ifdef XML
   
 static const char* IDENT_STYLESHEET_MANAGER_C="$Date$";  
   
 #include "pa_stylesheet_manager.h"  #include "pa_stylesheet_manager.h"
 #include "pa_stylesheet_connection.h"  
 #include "pa_exception.h"  #include "pa_exception.h"
 #include "pa_common.h"  #include "pa_common.h"
 #include "pa_threads.h"  #include "pa_threads.h"
Line 18  static const char* IDENT_STYLESHEET_MANA Line 15  static const char* IDENT_STYLESHEET_MANA
 #include "pa_vhash.h"  #include "pa_vhash.h"
 #include "pa_vtable.h"  #include "pa_vtable.h"
   
   volatile const char * IDENT_PA_STYLESHEET_MANAGER_C="$Id$" IDENT_PA_STYLESHEET_MANAGER_H;
   
 // globals  // globals
   
 Stylesheet_manager stylesheet_manager;  Stylesheet_manager* stylesheet_manager=0;
   
 // consts  // consts
   
 const time_t SECOND=1;  
 const time_t EXPIRE_UNUSED_CONNECTION_SECONDS=5*60;  const time_t EXPIRE_UNUSED_CONNECTION_SECONDS=5*60;
 const time_t CHECK_EXPIRED_CONNECTION_SECONDS=EXPIRE_UNUSED_CONNECTION_SECONDS*2;  const time_t CHECK_EXPIRED_CONNECTION_SECONDS=EXPIRE_UNUSED_CONNECTION_SECONDS*2;
   
Line 34  static void expire_connection(Stylesheet Line 32  static void expire_connection(Stylesheet
         if(connection.connected() && connection.expired(older_dies))          if(connection.connected() && connection.expired(older_dies))
                 connection.disconnect();                  connection.disconnect();
 }  }
 static void expire_connections(  static void expire_connections(Stylesheet_manager::connection_cache_type::key_type /*key*/, Stylesheet_manager::connection_cache_type::value_type stack, time_t older_dies) {
                                                            Stylesheet_manager::connection_cache_type::key_type /*key*/,           for(size_t i=0; i<stack->top_index(); i++)
                                                            Stylesheet_manager::connection_cache_type::value_type stack,   
                                                            time_t older_dies) {  
         for(int i=0; i<=stack->top_index(); i++)  
                 expire_connection(*stack->get(i), older_dies);                  expire_connection(*stack->get(i), older_dies);
 }  }
   
 // Stylesheet_manager  // Stylesheet_connection methods
   
 Stylesheet_manager::Stylesheet_manager(): prev_expiration_pass_time(0) {  void Stylesheet_connection::close() {
           stylesheet_manager->close_connection(ffile_spec, *this);
   }
   
   // Stylesheet_manager methods
   
         cache_managers.put(StringPtr(new String("stylesheet")), this);  Stylesheet_manager::Stylesheet_manager(): prev_expiration_pass_time(0) {
 }  }
   
 Stylesheet_manager::~Stylesheet_manager() {  Stylesheet_manager::~Stylesheet_manager() {
         connection_cache.for_each(expire_connections, time(0)+SECOND/*=in future=expire all*/);          connection_cache.for_each<time_t>(expire_connections, time(0)+(time_t)10/*=in future=expire all*/);
 }  }
   
 Stylesheet_connectionPtr Stylesheet_manager::get_connection(StringPtr file_spec) {  Stylesheet_connection* Stylesheet_manager::get_connection(String::Body file_spec) {
         Stylesheet_connectionPtr result=get_connection_from_cache(file_spec);          Stylesheet_connection* result=get_connection_from_cache(file_spec);
         if(!result)          return result ? result : new Stylesheet_connection(file_spec);
                 result=Stylesheet_connectionPtr(new Stylesheet_connection(file_spec));  
         return result;  
 }  }
   
 void Stylesheet_manager::close_connection(StringPtr file_spec,   void Stylesheet_manager::close_connection(String::Body file_spec, Stylesheet_connection& connection) {
                                                                                   Stylesheet_connection& connection) {          put_connection_to_cache(file_spec, connection);
         put_connection_to_cache(file_spec, Stylesheet_connectionPtr(&connection));  
 }  }
   
 // stylesheet cache  // stylesheet cache
 /// @todo get rid of memory spending Stack [zeros deep inside got accumulated]  /// @todo get rid of memory spending Stack [zeros deep inside got accumulated]
 Stylesheet_connectionPtr Stylesheet_manager::get_connection_from_cache(StringPtr file_spec) {   Stylesheet_connection* Stylesheet_manager::get_connection_from_cache(String::Body file_spec) { 
         SYNCHRONIZED;          SYNCHRONIZED;
   
         if(connection_cache_type::value_type connections=connection_cache.get(file_spec))          if(connection_cache_type::value_type connections=connection_cache.get(file_spec))
                 while(connections->top_index()>=0) { // there are cached stylesheets to that 'file_spec'                  while(!connections->is_empty()) { // there are cached stylesheets to that 'file_spec'
                         Stylesheet_connectionPtr result=connections->pop();                          Stylesheet_connection* result=connections->pop();
                         if(result->connected()) // not expired?                          if(result->connected()) // not expired?
                                 return result;                                  return result;
                 }                  }
   
         return Stylesheet_connectionPtr(0);          return 0;
 }  }
   
 void Stylesheet_manager::put_connection_to_cache(StringPtr file_spec,   void Stylesheet_manager::put_connection_to_cache(String::Body file_spec, Stylesheet_connection& connection) {
                                                                                                  Stylesheet_connectionPtr connection) {   
         SYNCHRONIZED;          SYNCHRONIZED;
   
         connection_cache_type::value_type connections=connection_cache.get(file_spec);          connection_cache_type::value_type connections=connection_cache.get(file_spec);
         if(!connections) { // there are no cached stylesheets to that 'file_spec' yet?          if(!connections) { // there are no cached stylesheets to that 'file_spec' yet?
                 connections=connection_cache_type::value_type(new connection_cache_type::value_type::element_type);                  connections=new connection_cache_value_type;
                 connection_cache.put(file_spec, connections);                  connection_cache.put(file_spec, connections);
         }                 }       
         connections->push(connection);          connections->push(&connection);
 }  }
   
 void Stylesheet_manager::maybe_expire_cache() {  void Stylesheet_manager::maybe_expire_cache() {
         time_t now=time(0);          time_t now=time(0);
   
         if(prev_expiration_pass_time<now-CHECK_EXPIRED_CONNECTION_SECONDS) {          if(prev_expiration_pass_time<now-CHECK_EXPIRED_CONNECTION_SECONDS) {
                 connection_cache.for_each(expire_connections, now-EXPIRE_UNUSED_CONNECTION_SECONDS);                  connection_cache.for_each<time_t>(expire_connections, now-EXPIRE_UNUSED_CONNECTION_SECONDS);
   
                 prev_expiration_pass_time=now;                  prev_expiration_pass_time=now;
         }          }
 }  }
 /*  
 static void add_connection_to_status_cache_table(Array::Item *value, void *info) {  
         Stylesheet_connection& connection=*static_cast<Stylesheet_connection *>(value);  
         Table& table=*static_cast<Table *>(info);  
   
   static void add_connection_to_status_cache_table(Stylesheet_connection& connection, Table* table) {
         if(connection.connected()) {          if(connection.connected()) {
                 Pool& pool=table.pool();                  ArrayString& row=*new ArrayString;
                 Array& row=*new(pool) Array(pool);  
   
                 // file                  // file
                 row+=&connection.file_spec();                  row+=new String(connection.file_spec(), String::L_AS_IS);
                 // time                  // time
                 time_t time_stamp=connection.get_time_used();                  time_t time_used=connection.get_time_used();
                 row+=new(pool) String(pool, pool.copy(ctime(&time_stamp)));                  row+=new String(pa_strdup(ctime(&time_used)));
   
                 table+=&row;                  *table+=&row;
         }          }
 }  }
 static void add_connections_to_status_cache_table(const Hash::Key& key, Hash::Val *value, void *info) {  static void add_connections_to_status_cache_table(Stylesheet_manager::connection_cache_type::key_type /*key*/, Stylesheet_manager::connection_cache_type::value_type stack, Table* table) {
         Stack& stack=*static_cast<Stack *>(value);          for(Array_iterator<Stylesheet_connection*> i(*stack); i.has_next(); )
         Array_iter iter(stack);                  add_connection_to_status_cache_table(*i.next(), table);
         for(int countdown=stack.top_index(); countdown-->=0; )  
                 add_connection_to_status_cache_table(iter.next(), info);  
 }  }
 */  
 ValuePtr Stylesheet_manager::get_status(Pool& pool, StringPtr source) {  Value* Stylesheet_manager::get_status() {
         VHashPtr result(new VHash);          VHash* result=new VHash;
 /*  
         // cache          // cache
         {          {
                 Array& columns=*new(pool) Array(pool);                  ArrayString& columns=*new ArrayString;
                 columns+=new(pool) String(pool, "file");                  columns+=new String("file");
                 columns+=new(pool) String(pool, "time");                  columns+=new String("time");
                 Table& table=*new(pool) Table(pool, 0, &columns, connection_cache.size());                  Table& table=*new Table(&columns, connection_cache.count());
   
                 connection_cache.for_each(add_connections_to_status_cache_table, &table);                  connection_cache.for_each<Table*>(add_connections_to_status_cache_table, &table);
   
                 result.hash(source).put(*new(pool) String(pool, "cache"), new(pool) VTable(pool, &table));                  result->get_hash()->put(*new String("cache"), new VTable(&table));
         }          }
 */  
         return result;          return result;
 }  }
   
Removed from v.1.16.2.7  
changed lines
  Added in v.1.34

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