cppcheck/cli/threadexecutor.h

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/*
* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2022 Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef THREADEXECUTOR_H
#define THREADEXECUTOR_H
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#include "color.h"
#include "config.h"
#include "errorlogger.h"
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#include <cstddef>
#include <list>
#include <map>
#include <string>
#if ((defined(__GNUC__) || defined(__sun)) && !defined(__MINGW32__) && !defined(__CYGWIN__)) || defined(__CPPCHECK__)
#define THREADING_MODEL_FORK
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#elif defined(_WIN32)
#define THREADING_MODEL_WIN
#include "importproject.h"
#include <mutex>
#else
#error "No threading moodel defined"
#endif
class Settings;
/// @addtogroup CLI
/// @{
/**
* This class will take a list of filenames and settings and check then
* all files using threads.
*/
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class ThreadExecutor : public ErrorLogger {
public:
ThreadExecutor(const std::map<std::string, std::size_t> &files, Settings &settings, ErrorLogger &errorLogger);
ThreadExecutor(const ThreadExecutor &) = delete;
~ThreadExecutor() OVERRIDE;
void operator=(const ThreadExecutor &) = delete;
unsigned int check();
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void reportOut(const std::string &outmsg, Color c) OVERRIDE;
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void reportErr(const ErrorMessage &msg) OVERRIDE;
void reportInfo(const ErrorMessage &msg) OVERRIDE;
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void bughuntingReport(const std::string &str) OVERRIDE;
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/**
* @brief Add content to a file, to be used in unit testing.
*
* @param path File name (used as a key to link with real file).
* @param content If the file would be a real file, this should be
* the content of the file.
*/
void addFileContent(const std::string &path, const std::string &content);
private:
enum class MessageType {REPORT_ERROR, REPORT_INFO};
const std::map<std::string, std::size_t> &mFiles;
Settings &mSettings;
ErrorLogger &mErrorLogger;
unsigned int mFileCount;
void report(const ErrorMessage &msg, MessageType msgType);
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#if defined(THREADING_MODEL_FORK)
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/** @brief Key is file name, and value is the content of the file */
std::map<std::string, std::string> mFileContents;
private:
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enum PipeSignal {REPORT_OUT='1',REPORT_ERROR='2', REPORT_INFO='3', REPORT_VERIFICATION='4', CHILD_END='5'};
/**
* Read from the pipe, parse and handle what ever is in there.
*@return -1 in case of error
* 0 if there is nothing in the pipe to be read
* 1 if we did read something
*/
int handleRead(int rpipe, unsigned int &result);
void writeToPipe(PipeSignal type, const std::string &data);
/**
* Write end of status pipe, different for each child.
* Not used in master process.
*/
std::list<std::string> mErrorList;
int mWpipe;
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/**
* @brief Check load average condition
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* @param nchildren - count of currently ran children
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* @return true - if new process can be started
*/
bool checkLoadAverage(size_t nchildren);
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/**
* @brief Reports internal errors related to child processes
* @param msg The error message
*/
void reportInternalChildErr(const std::string &childname, const std::string &msg);
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public:
/**
* @return true if support for threads exist.
*/
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static bool isEnabled() {
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return true;
}
#elif defined(THREADING_MODEL_WIN)
private:
std::map<std::string, std::string> mFileContents;
std::map<std::string, std::size_t>::const_iterator mItNextFile;
std::list<ImportProject::FileSettings>::const_iterator mItNextFileSettings;
std::size_t mProcessedFiles;
std::size_t mTotalFiles;
std::size_t mProcessedSize;
std::size_t mTotalFileSize;
std::mutex mFileSync;
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std::list<std::string> mErrorList;
std::mutex mErrorSync;
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std::mutex mReportSync;
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static unsigned __stdcall threadProc(ThreadExecutor *threadExecutor);
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public:
/**
* @return true if support for threads exist.
*/
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static bool isEnabled() {
return true;
}
#else
public:
/**
* @return true if support for threads exist.
*/
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static bool isEnabled() {
return false;
}
#endif
};
/// @}
#endif // THREADEXECUTOR_H