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Add preprocessor guards to allow build without threads/threadpool.

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mingodad 2023-06-22 14:48:14 +02:00 • committed by Charles Baker
parent 3d1351c555
commit a807827db8
2 changed files with 19 additions and 1 deletions
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16
src/lalr/GrammarGenerator.cpp
View file

@ -21,7 +21,9 @@
#include "ParserStateMachine.hpp"
#include "RegexGenerator.hpp"
#include "RegexCompiler.hpp"
#ifndef LALR_NO_THREADS
#include "ThreadPool.hpp"
#endif
#include "ErrorPolicy.hpp"
#include "ErrorCode.hpp"
#include "assert.hpp"
@ -49,7 +51,9 @@ using namespace lalr;
*/
GrammarGenerator::GrammarGenerator()
: error_policy_( nullptr )
#ifndef LALR_NO_THREADS
, thread_pool_( nullptr )
#endif
, identifier_()
, actions_()
, productions_()
@ -64,14 +68,18 @@ GrammarGenerator::GrammarGenerator()
, start_state_( nullptr )
, errors_( 0 )
{
#ifndef LALR_NO_THREADS
thread_pool_ = new ThreadPool;
thread_pool_->start( 8 );
#endif
}
GrammarGenerator::~GrammarGenerator()
{
#ifndef LALR_NO_THREADS
delete thread_pool_;
thread_pool_ = nullptr;
#endif
}
const std::vector<std::unique_ptr<GrammarAction>>& GrammarGenerator::actions() const
@ -756,7 +764,9 @@ void GrammarGenerator::generate_goto_items()
{
for ( const shared_ptr<GrammarState>& state : states_ )
{
#ifndef LALR_NO_THREADS
thread_pool_->push_job( [this, state]()
#endif
{
for ( GrammarTransition* transition : state->transitions() )
{
@ -799,9 +809,13 @@ void GrammarGenerator::generate_goto_items()
}
}
}
#ifndef LALR_NO_THREADS
);
#endif
}
thread_pool_->wait_idle();
#ifndef LALR_NO_THREADS
thread_pool_->wait_idle();
#endif
}
/**

4
src/lalr/GrammarGenerator.hpp
View file

@ -15,7 +15,9 @@ namespace lalr
{
class ErrorPolicy;
#ifndef LALR_NO_THREADS
class ThreadPool;
#endif
class LexerStateMachine;
class GrammarCompiler;
class GrammarAction;
@ -34,7 +36,9 @@ class Grammar;
class GrammarGenerator
{
ErrorPolicy* error_policy_; ///< The event sink to report errors to and print with or null to ignore errors and prints.
#ifndef LALR_NO_THREADS
ThreadPool* thread_pool_; ///< The pool of threads to use to generate the parser.
#endif
std::string identifier_; ///< The identifier of the parser.
std::vector<std::unique_ptr<GrammarAction>> actions_; ///< The actions in the parser.
std::vector<std::unique_ptr<GrammarProduction>> productions_; ///< The productions in the parser.