--- parser3/src/main/pa_stylesheet_manager.C 2001/11/05 10:21:28 1.2 +++ parser3/src/main/pa_stylesheet_manager.C 2003/12/11 09:22:09 1.23 @@ -1,99 +1,80 @@ /** @file Parser: sql driver manager implementation. - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexander Petrosyan (http://design.ru/paf) - - $Id: pa_stylesheet_manager.C,v 1.2 2001/11/05 10:21:28 paf Exp $ + Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ #include "pa_config_includes.h" #ifdef XML +static const char * const IDENT_STYLESHEET_MANAGER_C="$Date: 2003/12/11 09:22:09 $"; + #include "pa_stylesheet_manager.h" -#include "pa_stylesheet_connection.h" -#include "ltdl.h" #include "pa_exception.h" #include "pa_common.h" #include "pa_threads.h" #include "pa_stack.h" #include "pa_vhash.h" +#include "pa_vtable.h" // globals -Stylesheet_manager *stylesheet_manager; +Stylesheet_manager* stylesheet_manager=0; // consts -const int EXPIRE_UNUSED_CONNECTION_SECONDS=5*60; -const int CHECK_EXPIRED_CONNECTION_SECONDS=EXPIRE_UNUSED_CONNECTION_SECONDS*2; +const time_t SECOND=1; +const time_t EXPIRE_UNUSED_CONNECTION_SECONDS=5*60; +const time_t CHECK_EXPIRED_CONNECTION_SECONDS=EXPIRE_UNUSED_CONNECTION_SECONDS*2; // helpers -static void expire_connection(Array::Item *value, void *info) { - Stylesheet_connection& connection=*static_cast(value); - time_t older_dies=reinterpret_cast(info); - +static void expire_connection(Stylesheet_connection& connection, time_t older_dies) { if(connection.connected() && connection.expired(older_dies)) connection.disconnect(); } -static void expire_connections(const Hash::Key& key, Hash::Val *value, void *info) { - Stack& stack=*static_cast(value); - for(int i=0; i<=stack.top_index(); i++) - expire_connection(stack.get(i), info); +static void expire_connections( + Stylesheet_manager::connection_cache_type::key_type /*key*/, + Stylesheet_manager::connection_cache_type::value_type stack, + time_t older_dies) { + for(size_t i=0; itop_index(); i++) + expire_connection(*stack->get(i), older_dies); } -// Stylesheet_manager +// Stylesheet_connection methods -Stylesheet_manager::Stylesheet_manager(Pool& pool) : Pooled(pool), - connection_cache(pool), - prev_expiration_pass_time(0) { -} -Stylesheet_manager::~Stylesheet_manager() { - connection_cache.for_each(expire_connections, - reinterpret_cast((time_t)0/*=in past=expire all*/)); +void Stylesheet_connection::close() { + stylesheet_manager.close_connection(ffile_spec, *this); } -Stylesheet_connection& Stylesheet_manager::get_connection(const String& request_file_spec) { - Pool& pool=request_file_spec.pool(); // request pool +// Stylesheet_manager methods - // first trying to get cached stylesheet - Stylesheet_connection *result=get_connection_from_cache(request_file_spec); - if(!result) { - // then just construct it - - // make global_file_spec C-string on global pool - const char *request_file_spec_cstr=request_file_spec.cstr(String::UL_FILE_SPEC); - char *global_file_spec_cstr=(char *)malloc(strlen(request_file_spec_cstr)+1); - strcpy(global_file_spec_cstr, request_file_spec_cstr); - // make global_file_spec string on global pool - String& global_file_spec=*new(this->pool()) String(this->pool(), global_file_spec_cstr); +Stylesheet_manager::Stylesheet_manager(): prev_expiration_pass_time(0) { +} - result=new(this->pool()) Stylesheet_connection(this->pool(), global_file_spec); - } - // associate with services[request] (deassociates at close) - result->set_services(&pool); - // return it - return *result; +Stylesheet_manager::~Stylesheet_manager() { + connection_cache.for_each(expire_connections, time(0)+SECOND/*=in future=expire all*/); } -void Stylesheet_manager::close_connection(const String& file_spec, - Stylesheet_connection& connection) { - // deassociate from services[request] - connection.set_services(0); - put_connection_to_cache(file_spec, connection); +Stylesheet_connection_ptr Stylesheet_manager::get_connection(String::Body file_spec) { + Stylesheet_connection* result=get_connection_from_cache(file_spec); + if(!result) + result=new Stylesheet_connection(file_spec); + return Stylesheet_connection_ptr(result); } +void Stylesheet_manager::close_connection(String::Body file_spec, Stylesheet_connection& connection) { + put_connection_to_cache(file_spec, connection); +} // stylesheet cache /// @todo get rid of memory spending Stack [zeros deep inside got accumulated] -Stylesheet_connection *Stylesheet_manager::get_connection_from_cache(const String& file_spec) { +Stylesheet_connection* Stylesheet_manager::get_connection_from_cache(String::Body file_spec) { SYNCHRONIZED; - maybe_expire_connection_cache(); - - if(Stack *connections=static_cast(connection_cache.get(file_spec))) - while(connections->top_index()>=0) { // there are cached stylesheets to that 'file_spec' - Stylesheet_connection *result=static_cast(connections->pop()); + if(connection_cache_type::value_type connections=connection_cache.get(file_spec)) + while(!connections->is_empty()) { // there are cached stylesheets to that 'file_spec' + Stylesheet_connection* result=connections->pop(); if(result->connected()) // not expired? return result; } @@ -101,45 +82,62 @@ Stylesheet_connection *Stylesheet_manage return 0; } -void Stylesheet_manager::put_connection_to_cache(const String& file_spec, - Stylesheet_connection& connection) { +void Stylesheet_manager::put_connection_to_cache(String::Body file_spec, + Stylesheet_connection& connection) { SYNCHRONIZED; - Stack *connections=static_cast(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? - connections=NEW Stack(pool()); // NOTE: never freed up! + connections=new connection_cache_value_type; connection_cache.put(file_spec, connections); } connections->push(&connection); } -void Stylesheet_manager::maybe_expire_connection_cache() { +void Stylesheet_manager::maybe_expire_cache() { time_t now=time(0); if(prev_expiration_pass_time(now-EXPIRE_UNUSED_CONNECTION_SECONDS)); + connection_cache.for_each(expire_connections, now-EXPIRE_UNUSED_CONNECTION_SECONDS); prev_expiration_pass_time=now; } } -Value& Stylesheet_manager::get_status(Pool& pool, const String *source) { - VHash& result=*new(pool) VHash(pool); -/* +static void add_connection_to_status_cache_table(Stylesheet_connection& connection, Table* table) { + if(connection.connected()) { + ArrayString& row=*new ArrayString; + + // file + row+=new String(connection.file_spec(), String::L_AS_IS); + // time + time_t time_used=connection.get_time_used(); + row+=new String(pa_strdup(ctime(&time_used))); + + *table+=&row; + } +} +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) +{ + for(Array_iterator i(*stack); i.has_next(); ) + add_connection_to_status_cache_table(*i.next(), table); +} + +Value* Stylesheet_manager::get_status() { + VHash* result=new VHash; // cache { - Array& columns=*new(pool) Array(pool, 3); - columns+=new(pool) String(pool, "protocol"); - columns+=new(pool) String(pool, "time"); - columns+=new(pool) String(pool, "times"); - Table& table=*new(pool) Table(pool, 0, &columns, connection_cache.size()); + ArrayString& columns=*new ArrayString; + columns+=new String("file"); + columns+=new String("time"); + Table& table=*new Table(&columns, connection_cache.count()); connection_cache.for_each(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; }