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Introduce codemodelbackend process and library

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This is a partial result of wip/clang-oop. More will follow.

This allows us to invoke the completion out of the Qt Creator process
and thus safes us as against libclang crashes.

At this point only the completion use case is supported.

Some notes on the individual components:

 src/libs/codemodelbackendipc
  * library encapsulating the inter process communication handling
  * used by the backend application and in a follow-up change by the
    creator integration

 src/libs/3rdparty/sqlite
  * version 3.8.10.2
  * dependency of codemodelbackendipc, will be used to storage indexing
    data, among others

 src/tools/codemodelbackend
  * the backend application

 tests/unit:
  * unit tests

Change-Id: I91a48e27467581a22fb760a18d8eb926008fea60
Reviewed-by: Alessandro Portale <alessandro.portale@theqtcompany.com>
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
Reviewed-by: Marco Bubke <marco.bubke@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
This commit is contained in:
Marco Bubke
2015-06-01 18:51:55 +02:00
committed by Nikolai Kosjar
parent 51fec1a3ca
commit e2f8a9883b
228 changed files with 184186 additions and 44 deletions
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116
src/libs/sqlite/sqlitedatabasebackend.h Normal file
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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://www.qt.io/licensing. For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#ifndef SQLITEDATABASEBACKEND_H
#define SQLITEDATABASEBACKEND_H
#include <QStringList>
#include "sqliteglobal.h"
#include "utf8stringvector.h"
struct sqlite3;
class SQLITE_EXPORT SqliteDatabaseBackend
{
public:
SqliteDatabaseBackend();
~SqliteDatabaseBackend();
static void setMmapSize(qint64 defaultSize, qint64 maximumSize);
static void activateMultiThreading();
static void activateLogging();
static void initializeSqliteLibrary();
static void shutdownSqliteLibrary();
static void checkpointFullWalLog();
void open(const QString &databaseFilePath);
void close();
void closeWithoutException();
static SqliteDatabaseBackend *threadLocalInstance();
static sqlite3* sqliteDatabaseHandle();
void setJournalMode(JournalMode journalMode);
JournalMode journalMode() const;
void setTextEncoding(TextEncoding textEncoding);
TextEncoding textEncoding();
static Utf8StringVector columnNames(const Utf8String &tableName);
static int changesCount();
static int totalChangesCount();
protected:
bool databaseIsOpen() const;
void setPragmaValue(const Utf8String &pragma, const Utf8String &value);
Utf8String pragmaValue(const Utf8String &pragma) const;
void registerBusyHandler();
void registerRankingFunction();
static int busyHandlerCallback(void*, int counter);
void cacheTextEncoding();
void checkForOpenDatabaseWhichCanBeClosed();
void checkDatabaseClosing(int resultCode);
void checkCanOpenDatabase(const QString &databaseFilePath);
void checkDatabaseCouldBeOpened(int resultCode);
void checkPragmaValue(const Utf8String &databaseValue, const Utf8String &expectedValue);
static void checkDatabaseHandleIsNotNull();
static void checkDatabaseBackendIsNotNull();
static void checkIfMultithreadingIsActivated(int resultCode);
static void checkIfLoogingIsActivated(int resultCode);
static void checkMmapSizeIsSet(int resultCode);
static void checkInitializeSqliteLibraryWasSuccesful(int resultCode);
static void checkShutdownSqliteLibraryWasSuccesful(int resultCode);
static void checkIfLogCouldBeCheckpointed(int resultCode);
static int indexOfPragma(const Utf8String pragma, const Utf8String pragmas[], size_t pragmaCount);
static const Utf8String &journalModeToPragma(JournalMode journalMode);
static JournalMode pragmaToJournalMode(const Utf8String &pragma);
static const Utf8String &textEncodingToPragma(TextEncoding textEncoding);
static TextEncoding pragmaToTextEncoding(const Utf8String &pragma);
Q_NORETURN static void throwException(const char *whatHasHappens);
private:
sqlite3 *databaseHandle;
TextEncoding cachedTextEncoding;
};
#endif // SQLITEDATABASEBACKEND_H