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android / platform / external / qt / 7bfefd596b628604816a01c904428ab99099b10d / . / Windows-4.7.4 / src / 3rdparty / webkit / WebCore / loader / icon / IconDatabase.cpp
blob: 341f3cd6ed13c2b54993e1e18604513d694366e5 [file] [log] [blame]
/*
* Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2007 Justin Haygood (jhaygood@reaktix.com)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "IconDatabase.h"
#if ENABLE(ICONDATABASE)
#include "AutodrainedPool.h"
#include "DocumentLoader.h"
#include "FileSystem.h"
#include "IconDatabaseClient.h"
#include "IconRecord.h"
#include "IntSize.h"
#include "Logging.h"
#include "ScriptController.h"
#include "SQLiteStatement.h"
#include "SQLiteTransaction.h"
#include "SuddenTermination.h"
#include <wtf/CurrentTime.h>
#include <wtf/MainThread.h>
#include <wtf/StdLibExtras.h>
// For methods that are meant to support API from the main thread - should not be called internally
#define ASSERT_NOT_SYNC_THREAD() ASSERT(!m_syncThreadRunning || !IS_ICON_SYNC_THREAD())
// For methods that are meant to support the sync thread ONLY
#define IS_ICON_SYNC_THREAD() (m_syncThread == currentThread())
#define ASSERT_ICON_SYNC_THREAD() ASSERT(IS_ICON_SYNC_THREAD())
#if PLATFORM(QT) || PLATFORM(GTK)
#define CAN_THEME_URL_ICON
#endif
namespace WebCore {
static IconDatabase* sharedIconDatabase = 0;
static int databaseCleanupCounter = 0;
// This version number is in the DB and marks the current generation of the schema
// Currently, a mismatched schema causes the DB to be wiped and reset. This isn't
// so bad during development but in the future, we would need to write a conversion
// function to advance older released schemas to "current"
static const int currentDatabaseVersion = 6;
// Icons expire once every 4 days
static const int iconExpirationTime = 60*60*24*4;
static const int updateTimerDelay = 5;
static bool checkIntegrityOnOpen = false;
#ifndef NDEBUG
static String urlForLogging(const String& url)
{
static unsigned urlTruncationLength = 120;
if (url.length() < urlTruncationLength)
return url;
return url.substring(0, urlTruncationLength) + "...";
}
#endif
static IconDatabaseClient* defaultClient()
{
static IconDatabaseClient* defaultClient = new IconDatabaseClient();
return defaultClient;
}
IconDatabase* iconDatabase()
{
if (!sharedIconDatabase) {
ScriptController::initializeThreading();
sharedIconDatabase = new IconDatabase;
}
return sharedIconDatabase;
}
// ************************
// *** Main Thread Only ***
// ************************
void IconDatabase::setClient(IconDatabaseClient* client)
{
// We don't allow a null client, because we never null check it anywhere in this code
// Also don't allow a client change after the thread has already began
// (setting the client should occur before the database is opened)
ASSERT(client);
ASSERT(!m_syncThreadRunning);
if (!client || m_syncThreadRunning)
return;
m_client = client;
}
bool IconDatabase::open(const String& databasePath)
{
ASSERT_NOT_SYNC_THREAD();
if (!m_isEnabled)
return false;
if (isOpen()) {
LOG_ERROR("Attempt to reopen the IconDatabase which is already open. Must close it first.");
return false;
}
m_databaseDirectory = databasePath.crossThreadString();
// Formulate the full path for the database file
m_completeDatabasePath = pathByAppendingComponent(m_databaseDirectory, defaultDatabaseFilename());
// Lock here as well as first thing in the thread so the thread doesn't actually commence until the createThread() call
// completes and m_syncThreadRunning is properly set
m_syncLock.lock();
m_syncThread = createThread(IconDatabase::iconDatabaseSyncThreadStart, this, "WebCore: IconDatabase");
m_syncThreadRunning = m_syncThread;
m_syncLock.unlock();
if (!m_syncThread)
return false;
return true;
}
void IconDatabase::close()
{
ASSERT_NOT_SYNC_THREAD();
if (m_syncThreadRunning) {
// Set the flag to tell the sync thread to wrap it up
m_threadTerminationRequested = true;
// Wake up the sync thread if it's waiting
wakeSyncThread();
// Wait for the sync thread to terminate
waitForThreadCompletion(m_syncThread, 0);
}
m_syncThreadRunning = false;
m_threadTerminationRequested = false;
m_removeIconsRequested = false;
m_syncDB.close();
ASSERT(!isOpen());
}
void IconDatabase::removeAllIcons()
{
ASSERT_NOT_SYNC_THREAD();
if (!isOpen())
return;
LOG(IconDatabase, "Requesting background thread to remove all icons");
// Clear the in-memory record of every IconRecord, anything waiting to be read from disk, and anything waiting to be written to disk
{
MutexLocker locker(m_urlAndIconLock);
// Clear the IconRecords for every page URL - RefCounting will cause the IconRecords themselves to be deleted
// We don't delete the actual PageRecords because we have the "retain icon for url" count to keep track of
HashMap<String, PageURLRecord*>::iterator iter = m_pageURLToRecordMap.begin();
HashMap<String, PageURLRecord*>::iterator end = m_pageURLToRecordMap.end();
for (; iter != end; ++iter)
(*iter).second->setIconRecord(0);
// Clear the iconURL -> IconRecord map
m_iconURLToRecordMap.clear();
// Clear all in-memory records of things that need to be synced out to disk
{
MutexLocker locker(m_pendingSyncLock);
m_pageURLsPendingSync.clear();
m_iconsPendingSync.clear();
}
// Clear all in-memory records of things that need to be read in from disk
{
MutexLocker locker(m_pendingReadingLock);
m_pageURLsPendingImport.clear();
m_pageURLsInterestedInIcons.clear();
m_iconsPendingReading.clear();
m_loadersPendingDecision.clear();
}
}
m_removeIconsRequested = true;
wakeSyncThread();
}
Image* IconDatabase::iconForPageURL(const String& pageURLOriginal, const IntSize& size)
{
ASSERT_NOT_SYNC_THREAD();
// pageURLOriginal cannot be stored without being deep copied first.
// We should go our of our way to only copy it if we have to store it
if (!isOpen() || pageURLOriginal.isEmpty())
return defaultIcon(size);
MutexLocker locker(m_urlAndIconLock);
String pageURLCopy; // Creates a null string for easy testing
PageURLRecord* pageRecord = m_pageURLToRecordMap.get(pageURLOriginal);
if (!pageRecord) {
pageURLCopy = pageURLOriginal.crossThreadString();
pageRecord = getOrCreatePageURLRecord(pageURLCopy);
}
// If pageRecord is NULL, one of two things is true -
// 1 - The initial url import is incomplete and this pageURL was marked to be notified once it is complete if an iconURL exists
// 2 - The initial url import IS complete and this pageURL has no icon
if (!pageRecord) {
MutexLocker locker(m_pendingReadingLock);
// Import is ongoing, there might be an icon. In this case, register to be notified when the icon comes in
// If we ever reach this condition, we know we've already made the pageURL copy
if (!m_iconURLImportComplete)
m_pageURLsInterestedInIcons.add(pageURLCopy);
return 0;
}
IconRecord* iconRecord = pageRecord->iconRecord();
// If the initial URL import isn't complete, it's possible to have a PageURL record without an associated icon
// In this case, the pageURL is already in the set to alert the client when the iconURL mapping is complete so
// we can just bail now
if (!m_iconURLImportComplete && !iconRecord)
return 0;
// The only way we should *not* have an icon record is if this pageURL is retained but has no icon yet - make sure of that
ASSERT(iconRecord || m_retainedPageURLs.contains(pageURLOriginal));
if (!iconRecord)
return 0;
// If it's a new IconRecord object that doesn't have its imageData set yet,
// mark it to be read by the background thread
if (iconRecord->imageDataStatus() == ImageDataStatusUnknown) {
if (pageURLCopy.isNull())
pageURLCopy = pageURLOriginal.crossThreadString();
MutexLocker locker(m_pendingReadingLock);
m_pageURLsInterestedInIcons.add(pageURLCopy);
m_iconsPendingReading.add(iconRecord);
wakeSyncThread();
return 0;
}
// If the size parameter was (0, 0) that means the caller of this method just wanted the read from disk to be kicked off
// and isn't actually interested in the image return value
if (size == IntSize(0, 0))
return 0;
// PARANOID DISCUSSION: This method makes some assumptions. It returns a WebCore::image which the icon database might dispose of at anytime in the future,
// and Images aren't ref counted. So there is no way for the client to guarantee continued existence of the image.
// This has *always* been the case, but in practice clients would always create some other platform specific representation of the image
// and drop the raw Image*. On Mac an NSImage, and on windows drawing into an HBITMAP.
// The async aspect adds a huge question - what if the image is deleted before the platform specific API has a chance to create its own
// representation out of it?
// If an image is read in from the icondatabase, we do *not* overwrite any image data that exists in the in-memory cache.
// This is because we make the assumption that anything in memory is newer than whatever is in the database.
// So the only time the data will be set from the second thread is when it is INITIALLY being read in from the database, but we would never
// delete the image on the secondary thread if the image already exists.
return iconRecord->image(size);
}
void IconDatabase::readIconForPageURLFromDisk(const String& pageURL)
{
// The effect of asking for an Icon for a pageURL automatically queues it to be read from disk
// if it hasn't already been set in memory. The special IntSize (0, 0) is a special way of telling
// that method "I don't care about the actual Image, i just want you to make sure you're getting it from disk.
iconForPageURL(pageURL, IntSize(0,0));
}
String IconDatabase::iconURLForPageURL(const String& pageURLOriginal)
{
ASSERT_NOT_SYNC_THREAD();
// Cannot do anything with pageURLOriginal that would end up storing it without deep copying first
// Also, in the case we have a real answer for the caller, we must deep copy that as well
if (!isOpen() || pageURLOriginal.isEmpty())
return String();
MutexLocker locker(m_urlAndIconLock);
PageURLRecord* pageRecord = m_pageURLToRecordMap.get(pageURLOriginal);
if (!pageRecord)
pageRecord = getOrCreatePageURLRecord(pageURLOriginal.crossThreadString());
// If pageRecord is NULL, one of two things is true -
// 1 - The initial url import is incomplete and this pageURL has already been marked to be notified once it is complete if an iconURL exists
// 2 - The initial url import IS complete and this pageURL has no icon
if (!pageRecord)
return String();
// Possible the pageRecord is around because it's a retained pageURL with no iconURL, so we have to check
return pageRecord->iconRecord() ? pageRecord->iconRecord()->iconURL().threadsafeCopy() : String();
}
#ifdef CAN_THEME_URL_ICON
static inline void loadDefaultIconRecord(IconRecord* defaultIconRecord)
{
defaultIconRecord->loadImageFromResource("urlIcon");
}
#else
static inline void loadDefaultIconRecord(IconRecord* defaultIconRecord)
{
static const unsigned char defaultIconData[] = { 0x4D, 0x4D, 0x00, 0x2A, 0x00, 0x00, 0x03, 0x32, 0x80, 0x00, 0x20, 0x50, 0x38, 0x24, 0x16, 0x0D, 0x07, 0x84, 0x42, 0x61, 0x50, 0xB8,
0x64, 0x08, 0x18, 0x0D, 0x0A, 0x0B, 0x84, 0xA2, 0xA1, 0xE2, 0x08, 0x5E, 0x39, 0x28, 0xAF, 0x48, 0x24, 0xD3, 0x53, 0x9A, 0x37, 0x1D, 0x18, 0x0E, 0x8A, 0x4B, 0xD1, 0x38,
0xB0, 0x7C, 0x82, 0x07, 0x03, 0x82, 0xA2, 0xE8, 0x6C, 0x2C, 0x03, 0x2F, 0x02, 0x82, 0x41, 0xA1, 0xE2, 0xF8, 0xC8, 0x84, 0x68, 0x6D, 0x1C, 0x11, 0x0A, 0xB7, 0xFA, 0x91,
0x6E, 0xD1, 0x7F, 0xAF, 0x9A, 0x4E, 0x87, 0xFB, 0x19, 0xB0, 0xEA, 0x7F, 0xA4, 0x95, 0x8C, 0xB7, 0xF9, 0xA9, 0x0A, 0xA9, 0x7F, 0x8C, 0x88, 0x66, 0x96, 0xD4, 0xCA, 0x69,
0x2F, 0x00, 0x81, 0x65, 0xB0, 0x29, 0x90, 0x7C, 0xBA, 0x2B, 0x21, 0x1E, 0x5C, 0xE6, 0xB4, 0xBD, 0x31, 0xB6, 0xE7, 0x7A, 0xBF, 0xDD, 0x6F, 0x37, 0xD3, 0xFD, 0xD8, 0xF2,
0xB6, 0xDB, 0xED, 0xAC, 0xF7, 0x03, 0xC5, 0xFE, 0x77, 0x53, 0xB6, 0x1F, 0xE6, 0x24, 0x8B, 0x1D, 0xFE, 0x26, 0x20, 0x9E, 0x1C, 0xE0, 0x80, 0x65, 0x7A, 0x18, 0x02, 0x01,
0x82, 0xC5, 0xA0, 0xC0, 0xF1, 0x89, 0xBA, 0x23, 0x30, 0xAD, 0x1F, 0xE7, 0xE5, 0x5B, 0x6D, 0xFE, 0xE7, 0x78, 0x3E, 0x1F, 0xEE, 0x97, 0x8B, 0xE7, 0x37, 0x9D, 0xCF, 0xE7,
0x92, 0x8B, 0x87, 0x0B, 0xFC, 0xA0, 0x8E, 0x68, 0x3F, 0xC6, 0x27, 0xA6, 0x33, 0xFC, 0x36, 0x5B, 0x59, 0x3F, 0xC1, 0x02, 0x63, 0x3B, 0x74, 0x00, 0x03, 0x07, 0x0B, 0x61,
0x00, 0x20, 0x60, 0xC9, 0x08, 0x00, 0x1C, 0x25, 0x9F, 0xE0, 0x12, 0x8A, 0xD5, 0xFE, 0x6B, 0x4F, 0x35, 0x9F, 0xED, 0xD7, 0x4B, 0xD9, 0xFE, 0x8A, 0x59, 0xB8, 0x1F, 0xEC,
0x56, 0xD3, 0xC1, 0xFE, 0x63, 0x4D, 0xF2, 0x83, 0xC6, 0xB6, 0x1B, 0xFC, 0x34, 0x68, 0x61, 0x3F, 0xC1, 0xA6, 0x25, 0xEB, 0xFC, 0x06, 0x58, 0x5C, 0x3F, 0xC0, 0x03, 0xE4,
0xC3, 0xFC, 0x04, 0x0F, 0x1A, 0x6F, 0xE0, 0xE0, 0x20, 0xF9, 0x61, 0x7A, 0x02, 0x28, 0x2B, 0xBC, 0x46, 0x25, 0xF3, 0xFC, 0x66, 0x3D, 0x99, 0x27, 0xF9, 0x7E, 0x6B, 0x1D,
0xC7, 0xF9, 0x2C, 0x5E, 0x1C, 0x87, 0xF8, 0xC0, 0x4D, 0x9A, 0xE7, 0xF8, 0xDA, 0x51, 0xB2, 0xC1, 0x68, 0xF2, 0x64, 0x1F, 0xE1, 0x50, 0xED, 0x0A, 0x04, 0x23, 0x79, 0x8A,
0x7F, 0x82, 0xA3, 0x39, 0x80, 0x7F, 0x80, 0xC2, 0xB1, 0x5E, 0xF7, 0x04, 0x2F, 0xB2, 0x10, 0x02, 0x86, 0x63, 0xC9, 0xCC, 0x07, 0xBF, 0x87, 0xF8, 0x4A, 0x38, 0xAF, 0xC1,
0x88, 0xF8, 0x66, 0x1F, 0xE1, 0xD9, 0x08, 0xD4, 0x8F, 0x25, 0x5B, 0x4A, 0x49, 0x97, 0x87, 0x39, 0xFE, 0x25, 0x12, 0x10, 0x68, 0xAA, 0x4A, 0x2F, 0x42, 0x29, 0x12, 0x69,
0x9F, 0xE1, 0xC1, 0x00, 0x67, 0x1F, 0xE1, 0x58, 0xED, 0x00, 0x83, 0x23, 0x49, 0x82, 0x7F, 0x81, 0x21, 0xE0, 0xFC, 0x73, 0x21, 0x00, 0x50, 0x7D, 0x2B, 0x84, 0x03, 0x83,
0xC2, 0x1B, 0x90, 0x06, 0x69, 0xFE, 0x23, 0x91, 0xAE, 0x50, 0x9A, 0x49, 0x32, 0xC2, 0x89, 0x30, 0xE9, 0x0A, 0xC4, 0xD9, 0xC4, 0x7F, 0x94, 0xA6, 0x51, 0xDE, 0x7F, 0x9D,
0x07, 0x89, 0xF6, 0x7F, 0x91, 0x85, 0xCA, 0x88, 0x25, 0x11, 0xEE, 0x50, 0x7C, 0x43, 0x35, 0x21, 0x60, 0xF1, 0x0D, 0x82, 0x62, 0x39, 0x07, 0x2C, 0x20, 0xE0, 0x80, 0x72,
0x34, 0x17, 0xA1, 0x80, 0xEE, 0xF0, 0x89, 0x24, 0x74, 0x1A, 0x2C, 0x93, 0xB3, 0x78, 0xCC, 0x52, 0x9D, 0x6A, 0x69, 0x56, 0xBB, 0x0D, 0x85, 0x69, 0xE6, 0x7F, 0x9E, 0x27,
0xB9, 0xFD, 0x50, 0x54, 0x47, 0xF9, 0xCC, 0x78, 0x9F, 0x87, 0xF9, 0x98, 0x70, 0xB9, 0xC2, 0x91, 0x2C, 0x6D, 0x1F, 0xE1, 0xE1, 0x00, 0xBF, 0x02, 0xC1, 0xF5, 0x18, 0x84,
0x01, 0xE1, 0x48, 0x8C, 0x42, 0x07, 0x43, 0xC9, 0x76, 0x7F, 0x8B, 0x04, 0xE4, 0xDE, 0x35, 0x95, 0xAB, 0xB0, 0xF0, 0x5C, 0x55, 0x23, 0xF9, 0x7E, 0x7E, 0x9F, 0xE4, 0x0C,
0xA7, 0x55, 0x47, 0xC7, 0xF9, 0xE6, 0xCF, 0x1F, 0xE7, 0x93, 0x35, 0x52, 0x54, 0x63, 0x19, 0x46, 0x73, 0x1F, 0xE2, 0x61, 0x08, 0xF0, 0x82, 0xE1, 0x80, 0x92, 0xF9, 0x20,
0xC0, 0x28, 0x18, 0x0A, 0x05, 0xA1, 0xA2, 0xF8, 0x6E, 0xDB, 0x47, 0x49, 0xFE, 0x3E, 0x17, 0xB6, 0x61, 0x13, 0x1A, 0x29, 0x26, 0xA9, 0xFE, 0x7F, 0x92, 0x70, 0x69, 0xFE,
0x4C, 0x2F, 0x55, 0x01, 0xF1, 0x54, 0xD4, 0x35, 0x49, 0x4A, 0x69, 0x59, 0x83, 0x81, 0x58, 0x76, 0x9F, 0xE2, 0x20, 0xD6, 0x4C, 0x9B, 0xA0, 0x48, 0x1E, 0x0B, 0xB7, 0x48,
0x58, 0x26, 0x11, 0x06, 0x42, 0xE8, 0xA4, 0x40, 0x17, 0x27, 0x39, 0x00, 0x60, 0x2D, 0xA4, 0xC3, 0x2C, 0x7F, 0x94, 0x56, 0xE4, 0xE1, 0x77, 0x1F, 0xE5, 0xB9, 0xD7, 0x66,
0x1E, 0x07, 0xB3, 0x3C, 0x63, 0x1D, 0x35, 0x49, 0x0E, 0x63, 0x2D, 0xA2, 0xF1, 0x12, 0x60, 0x1C, 0xE0, 0xE0, 0x52, 0x1B, 0x8B, 0xAC, 0x38, 0x0E, 0x07, 0x03, 0x60, 0x28,
0x1C, 0x0E, 0x87, 0x00, 0xF0, 0x66, 0x27, 0x11, 0xA2, 0xC1, 0x02, 0x5A, 0x1C, 0xE4, 0x21, 0x83, 0x1F, 0x13, 0x86, 0xFA, 0xD2, 0x55, 0x1D, 0xD6, 0x61, 0xBC, 0x77, 0xD3,
0xE6, 0x91, 0xCB, 0x4C, 0x90, 0xA6, 0x25, 0xB8, 0x2F, 0x90, 0xC5, 0xA9, 0xCE, 0x12, 0x07, 0x02, 0x91, 0x1B, 0x9F, 0x68, 0x00, 0x16, 0x76, 0x0D, 0xA1, 0x00, 0x08, 0x06,
0x03, 0x81, 0xA0, 0x20, 0x1A, 0x0D, 0x06, 0x80, 0x30, 0x24, 0x12, 0x89, 0x20, 0x98, 0x4A, 0x1F, 0x0F, 0x21, 0xA0, 0x9E, 0x36, 0x16, 0xC2, 0x88, 0xE6, 0x48, 0x9B, 0x83,
0x31, 0x1C, 0x55, 0x1E, 0x43, 0x59, 0x1A, 0x56, 0x1E, 0x42, 0xF0, 0xFA, 0x4D, 0x1B, 0x9B, 0x08, 0xDC, 0x5B, 0x02, 0xA1, 0x30, 0x7E, 0x3C, 0xEE, 0x5B, 0xA6, 0xDD, 0xB8,
0x6D, 0x5B, 0x62, 0xB7, 0xCD, 0xF3, 0x9C, 0xEA, 0x04, 0x80, 0x80, 0x00, 0x00, 0x0E, 0x01, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x10, 0x00, 0x00, 0x01, 0x01,
0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x10, 0x00, 0x00, 0x01, 0x02, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x03, 0xE0, 0x01, 0x03, 0x00, 0x03, 0x00, 0x00,
0x00, 0x01, 0x00, 0x05, 0x00, 0x00, 0x01, 0x06, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02, 0x00, 0x00, 0x01, 0x11, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
0x00, 0x08, 0x01, 0x15, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x04, 0x00, 0x00, 0x01, 0x16, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x02, 0x00, 0x01, 0x17,
0x00, 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x03, 0x29, 0x01, 0x1A, 0x00, 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x03, 0xE8, 0x01, 0x1B, 0x00, 0x05, 0x00, 0x00,
0x00, 0x01, 0x00, 0x00, 0x03, 0xF0, 0x01, 0x1C, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x01, 0x28, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02,
0x00, 0x00, 0x01, 0x52, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00, 0x0A,
0xFC, 0x80, 0x00, 0x00, 0x27, 0x10, 0x00, 0x0A, 0xFC, 0x80, 0x00, 0x00, 0x27, 0x10 };
DEFINE_STATIC_LOCAL(RefPtr<SharedBuffer>, defaultIconBuffer, (SharedBuffer::create(defaultIconData, sizeof(defaultIconData))));
defaultIconRecord->setImageData(defaultIconBuffer);
}
#endif
Image* IconDatabase::defaultIcon(const IntSize& size)
{
ASSERT_NOT_SYNC_THREAD();
if (!m_defaultIconRecord) {
m_defaultIconRecord = IconRecord::create("urlIcon");
loadDefaultIconRecord(m_defaultIconRecord.get());
}
return m_defaultIconRecord->image(size);
}
void IconDatabase::retainIconForPageURL(const String& pageURLOriginal)
{
ASSERT_NOT_SYNC_THREAD();
// Cannot do anything with pageURLOriginal that would end up storing it without deep copying first
if (!isEnabled() || pageURLOriginal.isEmpty())
return;
MutexLocker locker(m_urlAndIconLock);
PageURLRecord* record = m_pageURLToRecordMap.get(pageURLOriginal);
String pageURL;
if (!record) {
pageURL = pageURLOriginal.crossThreadString();
record = new PageURLRecord(pageURL);
m_pageURLToRecordMap.set(pageURL, record);
}
if (!record->retain()) {
if (pageURL.isNull())
pageURL = pageURLOriginal.crossThreadString();
// This page just had its retain count bumped from 0 to 1 - Record that fact
m_retainedPageURLs.add(pageURL);
// If we read the iconURLs yet, we want to avoid any pageURL->iconURL lookups and the pageURLsPendingDeletion is moot,
// so we bail here and skip those steps
if (!m_iconURLImportComplete)
return;
MutexLocker locker(m_pendingSyncLock);
// If this pageURL waiting to be sync'ed, update the sync record
// This saves us in the case where a page was ready to be deleted from the database but was just retained - so theres no need to delete it!
if (!m_privateBrowsingEnabled && m_pageURLsPendingSync.contains(pageURL)) {
LOG(IconDatabase, "Bringing %s back from the brink", pageURL.ascii().data());
m_pageURLsPendingSync.set(pageURL, record->snapshot());
}
}
}
void IconDatabase::releaseIconForPageURL(const String& pageURLOriginal)
{
ASSERT_NOT_SYNC_THREAD();
// Cannot do anything with pageURLOriginal that would end up storing it without deep copying first
if (!isEnabled() || pageURLOriginal.isEmpty())
return;
MutexLocker locker(m_urlAndIconLock);
// Check if this pageURL is actually retained
if (!m_retainedPageURLs.contains(pageURLOriginal)) {
LOG_ERROR("Attempting to release icon for URL %s which is not retained", urlForLogging(pageURLOriginal).ascii().data());
return;
}
// Get its retain count - if it's retained, we'd better have a PageURLRecord for it
PageURLRecord* pageRecord = m_pageURLToRecordMap.get(pageURLOriginal);
ASSERT(pageRecord);
LOG(IconDatabase, "Releasing pageURL %s to a retain count of %i", urlForLogging(pageURLOriginal).ascii().data(), pageRecord->retainCount() - 1);
ASSERT(pageRecord->retainCount() > 0);
// If it still has a positive retain count, store the new count and bail
if (pageRecord->release())
return;
// This pageRecord has now been fully released. Do the appropriate cleanup
LOG(IconDatabase, "No more retainers for PageURL %s", urlForLogging(pageURLOriginal).ascii().data());
m_pageURLToRecordMap.remove(pageURLOriginal);
m_retainedPageURLs.remove(pageURLOriginal);
// Grab the iconRecord for later use (and do a sanity check on it for kicks)
IconRecord* iconRecord = pageRecord->iconRecord();
ASSERT(!iconRecord || (iconRecord && m_iconURLToRecordMap.get(iconRecord->iconURL()) == iconRecord));
{
MutexLocker locker(m_pendingReadingLock);
// Since this pageURL is going away, there's no reason anyone would ever be interested in its read results
if (!m_iconURLImportComplete)
m_pageURLsPendingImport.remove(pageURLOriginal);
m_pageURLsInterestedInIcons.remove(pageURLOriginal);
// If this icon is down to it's last retainer, we don't care about reading it in from disk anymore
if (iconRecord && iconRecord->hasOneRef()) {
m_iconURLToRecordMap.remove(iconRecord->iconURL());
m_iconsPendingReading.remove(iconRecord);
}
}
// Mark stuff for deletion from the database only if we're not in private browsing
if (!m_privateBrowsingEnabled) {
MutexLocker locker(m_pendingSyncLock);
m_pageURLsPendingSync.set(pageURLOriginal.crossThreadString(), pageRecord->snapshot(true));
// If this page is the last page to refer to a particular IconRecord, that IconRecord needs to
// be marked for deletion
if (iconRecord && iconRecord->hasOneRef())
m_iconsPendingSync.set(iconRecord->iconURL(), iconRecord->snapshot(true));
}
delete pageRecord;
if (isOpen())
scheduleOrDeferSyncTimer();
}
void IconDatabase::setIconDataForIconURL(PassRefPtr<SharedBuffer> dataOriginal, const String& iconURLOriginal)
{
ASSERT_NOT_SYNC_THREAD();
// Cannot do anything with dataOriginal or iconURLOriginal that would end up storing them without deep copying first
if (!isOpen() || iconURLOriginal.isEmpty())
return;
RefPtr<SharedBuffer> data = dataOriginal ? dataOriginal->copy() : 0;
String iconURL = iconURLOriginal.crossThreadString();
Vector<String> pageURLs;
{
MutexLocker locker(m_urlAndIconLock);
// If this icon was pending a read, remove it from that set because this new data should override what is on disk
RefPtr<IconRecord> icon = m_iconURLToRecordMap.get(iconURL);
if (icon) {
MutexLocker locker(m_pendingReadingLock);
m_iconsPendingReading.remove(icon.get());
} else
icon = getOrCreateIconRecord(iconURL);
// Update the data and set the time stamp
icon->setImageData(data);
icon->setTimestamp((int)currentTime());
// Copy the current retaining pageURLs - if any - to notify them of the change
pageURLs.appendRange(icon->retainingPageURLs().begin(), icon->retainingPageURLs().end());
// Mark the IconRecord as requiring an update to the database only if private browsing is disabled
if (!m_privateBrowsingEnabled) {
MutexLocker locker(m_pendingSyncLock);
m_iconsPendingSync.set(iconURL, icon->snapshot());
}
if (icon->hasOneRef()) {
ASSERT(icon->retainingPageURLs().isEmpty());
LOG(IconDatabase, "Icon for icon url %s is about to be destroyed - removing mapping for it", urlForLogging(icon->iconURL()).ascii().data());
m_iconURLToRecordMap.remove(icon->iconURL());
}
}
// Send notification out regarding all PageURLs that retain this icon
// But not if we're on the sync thread because that implies this mapping
// comes from the initial import which we don't want notifications for
if (!IS_ICON_SYNC_THREAD()) {
// Start the timer to commit this change - or further delay the timer if it was already started
scheduleOrDeferSyncTimer();
// Informal testing shows that draining the autorelease pool every 25 iterations is about as low as we can go
// before performance starts to drop off, but we don't want to increase this number because then accumulated memory usage will go up
AutodrainedPool pool(25);
for (unsigned i = 0; i < pageURLs.size(); ++i) {
LOG(IconDatabase, "Dispatching notification that retaining pageURL %s has a new icon", urlForLogging(pageURLs[i]).ascii().data());
m_client->dispatchDidAddIconForPageURL(pageURLs[i]);
pool.cycle();
}
}
}
void IconDatabase::setIconURLForPageURL(const String& iconURLOriginal, const String& pageURLOriginal)
{
ASSERT_NOT_SYNC_THREAD();
// Cannot do anything with iconURLOriginal or pageURLOriginal that would end up storing them without deep copying first
ASSERT(!iconURLOriginal.isEmpty());
if (!isOpen() || pageURLOriginal.isEmpty())
return;
String iconURL, pageURL;
{
MutexLocker locker(m_urlAndIconLock);
PageURLRecord* pageRecord = m_pageURLToRecordMap.get(pageURLOriginal);
// If the urls already map to each other, bail.
// This happens surprisingly often, and seems to cream iBench performance
if (pageRecord && pageRecord->iconRecord() && pageRecord->iconRecord()->iconURL() == iconURLOriginal)
return;
pageURL = pageURLOriginal.crossThreadString();
iconURL = iconURLOriginal.crossThreadString();
if (!pageRecord) {
pageRecord = new PageURLRecord(pageURL);
m_pageURLToRecordMap.set(pageURL, pageRecord);
}
RefPtr<IconRecord> iconRecord = pageRecord->iconRecord();
// Otherwise, set the new icon record for this page
pageRecord->setIconRecord(getOrCreateIconRecord(iconURL));
// If the current icon has only a single ref left, it is about to get wiped out.
// Remove it from the in-memory records and don't bother reading it in from disk anymore
if (iconRecord && iconRecord->hasOneRef()) {
ASSERT(iconRecord->retainingPageURLs().size() == 0);
LOG(IconDatabase, "Icon for icon url %s is about to be destroyed - removing mapping for it", urlForLogging(iconRecord->iconURL()).ascii().data());
m_iconURLToRecordMap.remove(iconRecord->iconURL());
MutexLocker locker(m_pendingReadingLock);
m_iconsPendingReading.remove(iconRecord.get());
}
// And mark this mapping to be added to the database
if (!m_privateBrowsingEnabled) {
MutexLocker locker(m_pendingSyncLock);
m_pageURLsPendingSync.set(pageURL, pageRecord->snapshot());
// If the icon is on its last ref, mark it for deletion
if (iconRecord && iconRecord->hasOneRef())
m_iconsPendingSync.set(iconRecord->iconURL(), iconRecord->snapshot(true));
}
}
// Since this mapping is new, send the notification out - but not if we're on the sync thread because that implies this mapping
// comes from the initial import which we don't want notifications for
if (!IS_ICON_SYNC_THREAD()) {
// Start the timer to commit this change - or further delay the timer if it was already started
scheduleOrDeferSyncTimer();
LOG(IconDatabase, "Dispatching notification that we changed an icon mapping for url %s", urlForLogging(pageURL).ascii().data());
AutodrainedPool pool;
m_client->dispatchDidAddIconForPageURL(pageURL);
}
}
IconLoadDecision IconDatabase::loadDecisionForIconURL(const String& iconURL, DocumentLoader* notificationDocumentLoader)
{
ASSERT_NOT_SYNC_THREAD();
if (!isOpen() || iconURL.isEmpty())
return IconLoadNo;
// If we have a IconRecord, it should also have its timeStamp marked because there is only two times when we create the IconRecord:
// 1 - When we read the icon urls from disk, getting the timeStamp at the same time
// 2 - When we get a new icon from the loader, in which case the timestamp is set at that time
{
MutexLocker locker(m_urlAndIconLock);
if (IconRecord* icon = m_iconURLToRecordMap.get(iconURL)) {
LOG(IconDatabase, "Found expiration time on a present icon based on existing IconRecord");
return (int)currentTime() - icon->getTimestamp() > iconExpirationTime ? IconLoadYes : IconLoadNo;
}
}
// If we don't have a record for it, but we *have* imported all iconURLs from disk, then we should load it now
MutexLocker readingLocker(m_pendingReadingLock);
if (m_iconURLImportComplete)
return IconLoadYes;
// Otherwise - since we refuse to perform I/O on the main thread to find out for sure - we return the answer that says
// "You might be asked to load this later, so flag that"
LOG(IconDatabase, "Don't know if we should load %s or not - adding %p to the set of document loaders waiting on a decision", iconURL.ascii().data(), notificationDocumentLoader);
m_loadersPendingDecision.add(notificationDocumentLoader);
return IconLoadUnknown;
}
bool IconDatabase::iconDataKnownForIconURL(const String& iconURL)
{
ASSERT_NOT_SYNC_THREAD();
MutexLocker locker(m_urlAndIconLock);
if (IconRecord* icon = m_iconURLToRecordMap.get(iconURL))
return icon->imageDataStatus() != ImageDataStatusUnknown;
return false;
}
void IconDatabase::setEnabled(bool enabled)
{
ASSERT_NOT_SYNC_THREAD();
if (!enabled && isOpen())
close();
m_isEnabled = enabled;
}
bool IconDatabase::isEnabled() const
{
ASSERT_NOT_SYNC_THREAD();
return m_isEnabled;
}
void IconDatabase::setPrivateBrowsingEnabled(bool flag)
{
m_privateBrowsingEnabled = flag;
}
bool IconDatabase::isPrivateBrowsingEnabled() const
{
return m_privateBrowsingEnabled;
}
void IconDatabase::delayDatabaseCleanup()
{
++databaseCleanupCounter;
if (databaseCleanupCounter == 1)
LOG(IconDatabase, "Database cleanup is now DISABLED");
}
void IconDatabase::allowDatabaseCleanup()
{
if (--databaseCleanupCounter < 0)
databaseCleanupCounter = 0;
if (databaseCleanupCounter == 0)
LOG(IconDatabase, "Database cleanup is now ENABLED");
}
void IconDatabase::checkIntegrityBeforeOpening()
{
checkIntegrityOnOpen = true;
}
size_t IconDatabase::pageURLMappingCount()
{
MutexLocker locker(m_urlAndIconLock);
return m_pageURLToRecordMap.size();
}
size_t IconDatabase::retainedPageURLCount()
{
MutexLocker locker(m_urlAndIconLock);
return m_retainedPageURLs.size();
}
size_t IconDatabase::iconRecordCount()
{
MutexLocker locker(m_urlAndIconLock);
return m_iconURLToRecordMap.size();
}
size_t IconDatabase::iconRecordCountWithData()
{
MutexLocker locker(m_urlAndIconLock);
size_t result = 0;
HashMap<String, IconRecord*>::iterator i = m_iconURLToRecordMap.begin();
HashMap<String, IconRecord*>::iterator end = m_iconURLToRecordMap.end();
for (; i != end; ++i)
result += ((*i).second->imageDataStatus() == ImageDataStatusPresent);
return result;
}
IconDatabase::IconDatabase()
: m_syncTimer(this, &IconDatabase::syncTimerFired)
, m_syncThreadRunning(false)
, m_isEnabled(false)
, m_privateBrowsingEnabled(false)
, m_threadTerminationRequested(false)
, m_removeIconsRequested(false)
, m_iconURLImportComplete(false)
, m_initialPruningComplete(false)
, m_client(defaultClient())
, m_imported(false)
, m_isImportedSet(false)
{
ASSERT(isMainThread());
}
IconDatabase::~IconDatabase()
{
ASSERT_NOT_REACHED();
}
void IconDatabase::notifyPendingLoadDecisionsOnMainThread(void* context)
{
static_cast<IconDatabase*>(context)->notifyPendingLoadDecisions();
}
void IconDatabase::notifyPendingLoadDecisions()
{
ASSERT_NOT_SYNC_THREAD();
// This method should only be called upon completion of the initial url import from the database
ASSERT(m_iconURLImportComplete);
LOG(IconDatabase, "Notifying all DocumentLoaders that were waiting on a load decision for thier icons");
HashSet<RefPtr<DocumentLoader> >::iterator i = m_loadersPendingDecision.begin();
HashSet<RefPtr<DocumentLoader> >::iterator end = m_loadersPendingDecision.end();
for (; i != end; ++i)
if ((*i)->refCount() > 1)
(*i)->iconLoadDecisionAvailable();
m_loadersPendingDecision.clear();
}
void IconDatabase::wakeSyncThread()
{
// The following is balanced by the call to enableSuddenTermination in the
// syncThreadMainLoop function.
// FIXME: It would be better to only disable sudden termination if we have
// something to write, not just if we have something to read.
disableSuddenTermination();
MutexLocker locker(m_syncLock);
m_syncCondition.signal();
}
void IconDatabase::scheduleOrDeferSyncTimer()
{
ASSERT_NOT_SYNC_THREAD();
if (!m_syncTimer.isActive()) {
// The following is balanced by the call to enableSuddenTermination in the
// syncTimerFired function.
disableSuddenTermination();
}
m_syncTimer.startOneShot(updateTimerDelay);
}
void IconDatabase::syncTimerFired(Timer<IconDatabase>*)
{
ASSERT_NOT_SYNC_THREAD();
wakeSyncThread();
// The following is balanced by the call to disableSuddenTermination in the
// scheduleOrDeferSyncTimer function.
enableSuddenTermination();
}
// ******************
// *** Any Thread ***
// ******************
bool IconDatabase::isOpen() const
{
MutexLocker locker(m_syncLock);
return m_syncDB.isOpen();
}
String IconDatabase::databasePath() const
{
MutexLocker locker(m_syncLock);
return m_completeDatabasePath.threadsafeCopy();
}
String IconDatabase::defaultDatabaseFilename()
{
DEFINE_STATIC_LOCAL(String, defaultDatabaseFilename, ("WebpageIcons.db"));
return defaultDatabaseFilename.threadsafeCopy();
}
// Unlike getOrCreatePageURLRecord(), getOrCreateIconRecord() does not mark the icon as "interested in import"
PassRefPtr<IconRecord> IconDatabase::getOrCreateIconRecord(const String& iconURL)
{
// Clients of getOrCreateIconRecord() are required to acquire the m_urlAndIconLock before calling this method
ASSERT(!m_urlAndIconLock.tryLock());
if (IconRecord* icon = m_iconURLToRecordMap.get(iconURL))
return icon;
RefPtr<IconRecord> newIcon = IconRecord::create(iconURL);
m_iconURLToRecordMap.set(iconURL, newIcon.get());
return newIcon.release();
}
// This method retrieves the existing PageURLRecord, or creates a new one and marks it as "interested in the import" for later notification
PageURLRecord* IconDatabase::getOrCreatePageURLRecord(const String& pageURL)
{
// Clients of getOrCreatePageURLRecord() are required to acquire the m_urlAndIconLock before calling this method
ASSERT(!m_urlAndIconLock.tryLock());
if (pageURL.isEmpty())
return 0;
PageURLRecord* pageRecord = m_pageURLToRecordMap.get(pageURL);
MutexLocker locker(m_pendingReadingLock);
if (!m_iconURLImportComplete) {
// If the initial import of all URLs hasn't completed and we have no page record, we assume we *might* know about this later and create a record for it
if (!pageRecord) {
LOG(IconDatabase, "Creating new PageURLRecord for pageURL %s", urlForLogging(pageURL).ascii().data());
pageRecord = new PageURLRecord(pageURL);
m_pageURLToRecordMap.set(pageURL, pageRecord);
}
// If the pageRecord for this page does not have an iconRecord attached to it, then it is a new pageRecord still awaiting the initial import
// Mark the URL as "interested in the result of the import" then bail
if (!pageRecord->iconRecord()) {
m_pageURLsPendingImport.add(pageURL);
return 0;
}
}
// We've done the initial import of all URLs known in the database. If this record doesn't exist now, it never will
return pageRecord;
}
// ************************
// *** Sync Thread Only ***
// ************************
void IconDatabase::importIconURLForPageURL(const String& iconURL, const String& pageURL)
{
ASSERT_ICON_SYNC_THREAD();
// This function is only for setting actual existing url mappings so assert that neither of these URLs are empty
ASSERT(!iconURL.isEmpty() && !pageURL.isEmpty());
setIconURLForPageURLInSQLDatabase(iconURL, pageURL);
}
void IconDatabase::importIconDataForIconURL(PassRefPtr<SharedBuffer> data, const String& iconURL)
{
ASSERT_ICON_SYNC_THREAD();
ASSERT(!iconURL.isEmpty());
writeIconSnapshotToSQLDatabase(IconSnapshot(iconURL, (int)currentTime(), data.get()));
}
bool IconDatabase::shouldStopThreadActivity() const
{
ASSERT_ICON_SYNC_THREAD();
return m_threadTerminationRequested || m_removeIconsRequested;
}
void* IconDatabase::iconDatabaseSyncThreadStart(void* vIconDatabase)
{
IconDatabase* iconDB = static_cast<IconDatabase*>(vIconDatabase);
return iconDB->iconDatabaseSyncThread();
}
void* IconDatabase::iconDatabaseSyncThread()
{
// The call to create this thread might not complete before the thread actually starts, so we might fail this ASSERT_ICON_SYNC_THREAD() because the pointer
// to our thread structure hasn't been filled in yet.
// To fix this, the main thread acquires this lock before creating us, then releases the lock after creation is complete. A quick lock/unlock cycle here will
// prevent us from running before that call completes
m_syncLock.lock();
m_syncLock.unlock();
ASSERT_ICON_SYNC_THREAD();
LOG(IconDatabase, "(THREAD) IconDatabase sync thread started");
#ifndef NDEBUG
double startTime = currentTime();
#endif
// Need to create the database path if it doesn't already exist
makeAllDirectories(m_databaseDirectory);
// Existence of a journal file is evidence of a previous crash/force quit and automatically qualifies
// us to do an integrity check
String journalFilename = m_completeDatabasePath + "-journal";
if (!checkIntegrityOnOpen) {
AutodrainedPool pool;
checkIntegrityOnOpen = fileExists(journalFilename);
}
{
MutexLocker locker(m_syncLock);
if (!m_syncDB.open(m_completeDatabasePath)) {
LOG_ERROR("Unable to open icon database at path %s - %s", m_completeDatabasePath.ascii().data(), m_syncDB.lastErrorMsg());
return 0;
}
}
if (shouldStopThreadActivity())
return syncThreadMainLoop();
#ifndef NDEBUG
double timeStamp = currentTime();
LOG(IconDatabase, "(THREAD) Open took %.4f seconds", timeStamp - startTime);
#endif
performOpenInitialization();
if (shouldStopThreadActivity())
return syncThreadMainLoop();
#ifndef NDEBUG
double newStamp = currentTime();
LOG(IconDatabase, "(THREAD) performOpenInitialization() took %.4f seconds, now %.4f seconds from thread start", newStamp - timeStamp, newStamp - startTime);
timeStamp = newStamp;
#endif
if (!imported()) {
LOG(IconDatabase, "(THREAD) Performing Safari2 import procedure");
SQLiteTransaction importTransaction(m_syncDB);
importTransaction.begin();
// Commit the transaction only if the import completes (the import should be atomic)
if (m_client->performImport()) {
setImported(true);
importTransaction.commit();
} else {
LOG(IconDatabase, "(THREAD) Safari 2 import was cancelled");
importTransaction.rollback();
}
if (shouldStopThreadActivity())
return syncThreadMainLoop();
#ifndef NDEBUG
newStamp = currentTime();
LOG(IconDatabase, "(THREAD) performImport() took %.4f seconds, now %.4f seconds from thread start", newStamp - timeStamp, newStamp - startTime);
timeStamp = newStamp;
#endif
}
// Uncomment the following line to simulate a long lasting URL import (*HUGE* icon databases, or network home directories)
// while (currentTime() - timeStamp < 10);
// Read in URL mappings from the database
LOG(IconDatabase, "(THREAD) Starting iconURL import");
performURLImport();
if (shouldStopThreadActivity())
return syncThreadMainLoop();
#ifndef NDEBUG
newStamp = currentTime();
LOG(IconDatabase, "(THREAD) performURLImport() took %.4f seconds. Entering main loop %.4f seconds from thread start", newStamp - timeStamp, newStamp - startTime);
#endif
LOG(IconDatabase, "(THREAD) Beginning sync");
return syncThreadMainLoop();
}
static int databaseVersionNumber(SQLiteDatabase& db)
{
return SQLiteStatement(db, "SELECT value FROM IconDatabaseInfo WHERE key = 'Version';").getColumnInt(0);
}
static bool isValidDatabase(SQLiteDatabase& db)
{
// These four tables should always exist in a valid db
if (!db.tableExists("IconInfo") || !db.tableExists("IconData") || !db.tableExists("PageURL") || !db.tableExists("IconDatabaseInfo"))
return false;
if (databaseVersionNumber(db) < currentDatabaseVersion) {
LOG(IconDatabase, "DB version is not found or below expected valid version");
return false;
}
return true;
}
static void createDatabaseTables(SQLiteDatabase& db)
{
if (!db.executeCommand("CREATE TABLE PageURL (url TEXT NOT NULL ON CONFLICT FAIL UNIQUE ON CONFLICT REPLACE,iconID INTEGER NOT NULL ON CONFLICT FAIL);")) {
LOG_ERROR("Could not create PageURL table in database (%i) - %s", db.lastError(), db.lastErrorMsg());
db.close();
return;
}
if (!db.executeCommand("CREATE INDEX PageURLIndex ON PageURL (url);")) {
LOG_ERROR("Could not create PageURL index in database (%i) - %s", db.lastError(), db.lastErrorMsg());
db.close();
return;
}
if (!db.executeCommand("CREATE TABLE IconInfo (iconID INTEGER PRIMARY KEY AUTOINCREMENT UNIQUE ON CONFLICT REPLACE, url TEXT NOT NULL ON CONFLICT FAIL UNIQUE ON CONFLICT FAIL, stamp INTEGER);")) {
LOG_ERROR("Could not create IconInfo table in database (%i) - %s", db.lastError(), db.lastErrorMsg());
db.close();
return;
}
if (!db.executeCommand("CREATE INDEX IconInfoIndex ON IconInfo (url, iconID);")) {
LOG_ERROR("Could not create PageURL index in database (%i) - %s", db.lastError(), db.lastErrorMsg());
db.close();
return;
}
if (!db.executeCommand("CREATE TABLE IconData (iconID INTEGER PRIMARY KEY AUTOINCREMENT UNIQUE ON CONFLICT REPLACE, data BLOB);")) {
LOG_ERROR("Could not create IconData table in database (%i) - %s", db.lastError(), db.lastErrorMsg());
db.close();
return;
}
if (!db.executeCommand("CREATE INDEX IconDataIndex ON IconData (iconID);")) {
LOG_ERROR("Could not create PageURL index in database (%i) - %s", db.lastError(), db.lastErrorMsg());
db.close();
return;
}
if (!db.executeCommand("CREATE TABLE IconDatabaseInfo (key TEXT NOT NULL ON CONFLICT FAIL UNIQUE ON CONFLICT REPLACE,value TEXT NOT NULL ON CONFLICT FAIL);")) {
LOG_ERROR("Could not create IconDatabaseInfo table in database (%i) - %s", db.lastError(), db.lastErrorMsg());
db.close();
return;
}
if (!db.executeCommand(String("INSERT INTO IconDatabaseInfo VALUES ('Version', ") + String::number(currentDatabaseVersion) + ");")) {
LOG_ERROR("Could not insert icon database version into IconDatabaseInfo table (%i) - %s", db.lastError(), db.lastErrorMsg());
db.close();
return;
}
}
void IconDatabase::performOpenInitialization()
{
ASSERT_ICON_SYNC_THREAD();
if (!isOpen())
return;
if (checkIntegrityOnOpen) {
checkIntegrityOnOpen = false;
if (!checkIntegrity()) {
LOG(IconDatabase, "Integrity check was bad - dumping IconDatabase");
m_syncDB.close();
{
MutexLocker locker(m_syncLock);
// Should've been consumed by SQLite, delete just to make sure we don't see it again in the future;
deleteFile(m_completeDatabasePath + "-journal");
deleteFile(m_completeDatabasePath);
}
// Reopen the write database, creating it from scratch
if (!m_syncDB.open(m_completeDatabasePath)) {
LOG_ERROR("Unable to open icon database at path %s - %s", m_completeDatabasePath.ascii().data(), m_syncDB.lastErrorMsg());
return;
}
}
}
int version = databaseVersionNumber(m_syncDB);
if (version > currentDatabaseVersion) {
LOG(IconDatabase, "Database version number %i is greater than our current version number %i - closing the database to prevent overwriting newer versions", version, currentDatabaseVersion);
m_syncDB.close();
m_threadTerminationRequested = true;
return;
}
if (!isValidDatabase(m_syncDB)) {
LOG(IconDatabase, "%s is missing or in an invalid state - reconstructing", m_completeDatabasePath.ascii().data());
m_syncDB.clearAllTables();
createDatabaseTables(m_syncDB);
}
// Reduce sqlite RAM cache size from default 2000 pages (~1.5kB per page). 3MB of cache for icon database is overkill
if (!SQLiteStatement(m_syncDB, "PRAGMA cache_size = 200;").executeCommand())
LOG_ERROR("SQLite database could not set cache_size");
}
bool IconDatabase::checkIntegrity()
{
ASSERT_ICON_SYNC_THREAD();
SQLiteStatement integrity(m_syncDB, "PRAGMA integrity_check;");
if (integrity.prepare() != SQLResultOk) {
LOG_ERROR("checkIntegrity failed to execute");
return false;
}
int resultCode = integrity.step();
if (resultCode == SQLResultOk)
return true;
if (resultCode != SQLResultRow)
return false;
int columns = integrity.columnCount();
if (columns != 1) {
LOG_ERROR("Received %i columns performing integrity check, should be 1", columns);
return false;
}
String resultText = integrity.getColumnText(0);
// A successful, no-error integrity check will be "ok" - all other strings imply failure
if (resultText == "ok")
return true;
LOG_ERROR("Icon database integrity check failed - \n%s", resultText.ascii().data());
return false;
}
void IconDatabase::performURLImport()
{
ASSERT_ICON_SYNC_THREAD();
SQLiteStatement query(m_syncDB, "SELECT PageURL.url, IconInfo.url, IconInfo.stamp FROM PageURL INNER JOIN IconInfo ON PageURL.iconID=IconInfo.iconID;");
if (query.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare icon url import query");
return;
}
// Informal testing shows that draining the autorelease pool every 25 iterations is about as low as we can go
// before performance starts to drop off, but we don't want to increase this number because then accumulated memory usage will go up
AutodrainedPool pool(25);
int result = query.step();
while (result == SQLResultRow) {
String pageURL = query.getColumnText(0);
String iconURL = query.getColumnText(1);
{
MutexLocker locker(m_urlAndIconLock);
PageURLRecord* pageRecord = m_pageURLToRecordMap.get(pageURL);
// If the pageRecord doesn't exist in this map, then no one has retained this pageURL
// If the s_databaseCleanupCounter count is non-zero, then we're not supposed to be pruning the database in any manner,
// so go ahead and actually create a pageURLRecord for this url even though it's not retained.
// If database cleanup *is* allowed, we don't want to bother pulling in a page url from disk that noone is actually interested
// in - we'll prune it later instead!
if (!pageRecord && databaseCleanupCounter && !pageURL.isEmpty()) {
pageRecord = new PageURLRecord(pageURL);
m_pageURLToRecordMap.set(pageURL, pageRecord);
}
if (pageRecord) {
IconRecord* currentIcon = pageRecord->iconRecord();
if (!currentIcon || currentIcon->iconURL() != iconURL) {
pageRecord->setIconRecord(getOrCreateIconRecord(iconURL));
currentIcon = pageRecord->iconRecord();
}
// Regardless, the time stamp from disk still takes precedence. Until we read this icon from disk, we didn't think we'd seen it before
// so we marked the timestamp as "now", but it's really much older
currentIcon->setTimestamp(query.getColumnInt(2));
}
}
// FIXME: Currently the WebKit API supports 1 type of notification that is sent whenever we get an Icon URL for a Page URL. We might want to re-purpose it to work for
// getting the actually icon itself also (so each pageurl would get this notification twice) or we might want to add a second type of notification -
// one for the URL and one for the Image itself
// Note that WebIconDatabase is not neccessarily API so we might be able to make this change
{
MutexLocker locker(m_pendingReadingLock);
if (m_pageURLsPendingImport.contains(pageURL)) {
m_client->dispatchDidAddIconForPageURL(pageURL);
m_pageURLsPendingImport.remove(pageURL);
pool.cycle();
}
}
// Stop the import at any time of the thread has been asked to shutdown
if (shouldStopThreadActivity()) {
LOG(IconDatabase, "IconDatabase asked to terminate during performURLImport()");
return;
}
result = query.step();
}
if (result != SQLResultDone)
LOG(IconDatabase, "Error reading page->icon url mappings from database");
// Clear the m_pageURLsPendingImport set - either the page URLs ended up with an iconURL (that we'll notify about) or not,
// but after m_iconURLImportComplete is set to true, we don't care about this set anymore
Vector<String> urls;
{
MutexLocker locker(m_pendingReadingLock);
urls.appendRange(m_pageURLsPendingImport.begin(), m_pageURLsPendingImport.end());
m_pageURLsPendingImport.clear();
m_iconURLImportComplete = true;
}
Vector<String> urlsToNotify;
// Loop through the urls pending import
// Remove unretained ones if database cleanup is allowed
// Keep a set of ones that are retained and pending notification
{
MutexLocker locker(m_urlAndIconLock);
for (unsigned i = 0; i < urls.size(); ++i) {
if (!m_retainedPageURLs.contains(urls[i])) {
PageURLRecord* record = m_pageURLToRecordMap.get(urls[i]);
if (record && !databaseCleanupCounter) {
m_pageURLToRecordMap.remove(urls[i]);
IconRecord* iconRecord = record->iconRecord();
// If this page is the only remaining retainer of its icon, mark that icon for deletion and don't bother
// reading anything related to it
if (iconRecord && iconRecord->hasOneRef()) {
m_iconURLToRecordMap.remove(iconRecord->iconURL());
{
MutexLocker locker(m_pendingReadingLock);
m_pageURLsInterestedInIcons.remove(urls[i]);
m_iconsPendingReading.remove(iconRecord);
}
{
MutexLocker locker(m_pendingSyncLock);
m_iconsPendingSync.set(iconRecord->iconURL(), iconRecord->snapshot(true));
}
}
delete record;
}
} else {
urlsToNotify.append(urls[i]);
}
}
}
LOG(IconDatabase, "Notifying %zu interested page URLs that their icon URL is known due to the import", urlsToNotify.size());
// Now that we don't hold any locks, perform the actual notifications
for (unsigned i = 0; i < urlsToNotify.size(); ++i) {
LOG(IconDatabase, "Notifying icon info known for pageURL %s", urlsToNotify[i].ascii().data());
m_client->dispatchDidAddIconForPageURL(urlsToNotify[i]);
if (shouldStopThreadActivity())
return;
pool.cycle();
}
// Notify all DocumentLoaders that were waiting for an icon load decision on the main thread
callOnMainThread(notifyPendingLoadDecisionsOnMainThread, this);
}
void* IconDatabase::syncThreadMainLoop()
{
ASSERT_ICON_SYNC_THREAD();
bool shouldReenableSuddenTermination = false;
m_syncLock.lock();
// It's possible thread termination is requested before the main loop even starts - in that case, just skip straight to cleanup
while (!m_threadTerminationRequested) {
m_syncLock.unlock();
#ifndef NDEBUG
double timeStamp = currentTime();
#endif
LOG(IconDatabase, "(THREAD) Main work loop starting");
// If we should remove all icons, do it now. This is an uninteruptible procedure that we will always do before quitting if it is requested
if (m_removeIconsRequested) {
removeAllIconsOnThread();
m_removeIconsRequested = false;
}
// Then, if the thread should be quitting, quit now!
if (m_threadTerminationRequested)
break;
bool didAnyWork = true;
while (didAnyWork) {
bool didWrite = writeToDatabase();
if (shouldStopThreadActivity())
break;
didAnyWork = readFromDatabase();
if (shouldStopThreadActivity())
break;
// Prune unretained icons after the first time we sync anything out to the database
// This way, pruning won't be the only operation we perform to the database by itself
// We also don't want to bother doing this if the thread should be terminating (the user is quitting)
// or if private browsing is enabled
// We also don't want to prune if the m_databaseCleanupCounter count is non-zero - that means someone
// has asked to delay pruning
static bool prunedUnretainedIcons = false;
if (didWrite && !m_privateBrowsingEnabled && !prunedUnretainedIcons && !databaseCleanupCounter) {
#ifndef NDEBUG
double time = currentTime();
#endif
LOG(IconDatabase, "(THREAD) Starting pruneUnretainedIcons()");
pruneUnretainedIcons();
LOG(IconDatabase, "(THREAD) pruneUnretainedIcons() took %.4f seconds", currentTime() - time);
// If pruneUnretainedIcons() returned early due to requested thread termination, its still okay
// to mark prunedUnretainedIcons true because we're about to terminate anyway
prunedUnretainedIcons = true;
}
didAnyWork = didAnyWork || didWrite;
if (shouldStopThreadActivity())
break;
}
#ifndef NDEBUG
double newstamp = currentTime();
LOG(IconDatabase, "(THREAD) Main work loop ran for %.4f seconds, %s requested to terminate", newstamp - timeStamp, shouldStopThreadActivity() ? "was" : "was not");
#endif
m_syncLock.lock();
// There is some condition that is asking us to stop what we're doing now and handle a special case
// This is either removing all icons, or shutting down the thread to quit the app
// We handle those at the top of this main loop so continue to jump back up there
if (shouldStopThreadActivity())
continue;
if (shouldReenableSuddenTermination) {
// The following is balanced by the call to disableSuddenTermination in the
// wakeSyncThread function. Any time we wait on the condition, we also have
// to enableSuddenTermation, after doing the next batch of work.
enableSuddenTermination();
}
m_syncCondition.wait(m_syncLock);
shouldReenableSuddenTermination = true;
}
m_syncLock.unlock();
// Thread is terminating at this point
cleanupSyncThread();
if (shouldReenableSuddenTermination) {
// The following is balanced by the call to disableSuddenTermination in the
// wakeSyncThread function. Any time we wait on the condition, we also have
// to enableSuddenTermation, after doing the next batch of work.
enableSuddenTermination();
}
return 0;
}
bool IconDatabase::readFromDatabase()
{
ASSERT_ICON_SYNC_THREAD();
#ifndef NDEBUG
double timeStamp = currentTime();
#endif
bool didAnyWork = false;
// We'll make a copy of the sets of things that need to be read. Then we'll verify at the time of updating the record that it still wants to be updated
// This way we won't hold the lock for a long period of time
Vector<IconRecord*> icons;
{
MutexLocker locker(m_pendingReadingLock);
icons.appendRange(m_iconsPendingReading.begin(), m_iconsPendingReading.end());
}
// Keep track of icons we actually read to notify them of the new icon
HashSet<String> urlsToNotify;
for (unsigned i = 0; i < icons.size(); ++i) {
didAnyWork = true;
RefPtr<SharedBuffer> imageData = getImageDataForIconURLFromSQLDatabase(icons[i]->iconURL());
// Verify this icon still wants to be read from disk
{
MutexLocker urlLocker(m_urlAndIconLock);
{
MutexLocker readLocker(m_pendingReadingLock);
if (m_iconsPendingReading.contains(icons[i])) {
// Set the new data
icons[i]->setImageData(imageData.get());
// Remove this icon from the set that needs to be read
m_iconsPendingReading.remove(icons[i]);
// We have a set of all Page URLs that retain this icon as well as all PageURLs waiting for an icon
// We want to find the intersection of these two sets to notify them
// Check the sizes of these two sets to minimize the number of iterations
const HashSet<String>* outerHash;
const HashSet<String>* innerHash;
if (icons[i]->retainingPageURLs().size() > m_pageURLsInterestedInIcons.size()) {
outerHash = &m_pageURLsInterestedInIcons;
innerHash = &(icons[i]->retainingPageURLs());
} else {
innerHash = &m_pageURLsInterestedInIcons;
outerHash = &(icons[i]->retainingPageURLs());
}
HashSet<String>::const_iterator iter = outerHash->begin();
HashSet<String>::const_iterator end = outerHash->end();
for (; iter != end; ++iter) {
if (innerHash->contains(*iter)) {
LOG(IconDatabase, "%s is interesting in the icon we just read. Adding it to the list and removing it from the interested set", urlForLogging(*iter).ascii().data());
urlsToNotify.add(*iter);
}
// If we ever get to the point were we've seen every url interested in this icon, break early
if (urlsToNotify.size() == m_pageURLsInterestedInIcons.size())
break;
}
// We don't need to notify a PageURL twice, so all the ones we're about to notify can be removed from the interested set
if (urlsToNotify.size() == m_pageURLsInterestedInIcons.size())
m_pageURLsInterestedInIcons.clear();
else {
iter = urlsToNotify.begin();
end = urlsToNotify.end();
for (; iter != end; ++iter)
m_pageURLsInterestedInIcons.remove(*iter);
}
}
}
}
if (shouldStopThreadActivity())
return didAnyWork;
// Informal testing shows that draining the autorelease pool every 25 iterations is about as low as we can go
// before performance starts to drop off, but we don't want to increase this number because then accumulated memory usage will go up
AutodrainedPool pool(25);
// Now that we don't hold any locks, perform the actual notifications
HashSet<String>::iterator iter = urlsToNotify.begin();
HashSet<String>::iterator end = urlsToNotify.end();
for (unsigned iteration = 0; iter != end; ++iter, ++iteration) {
LOG(IconDatabase, "Notifying icon received for pageURL %s", urlForLogging(*iter).ascii().data());
m_client->dispatchDidAddIconForPageURL(*iter);
if (shouldStopThreadActivity())
return didAnyWork;
pool.cycle();
}
LOG(IconDatabase, "Done notifying %i pageURLs who just received their icons", urlsToNotify.size());
urlsToNotify.clear();
if (shouldStopThreadActivity())
return didAnyWork;
}
LOG(IconDatabase, "Reading from database took %.4f seconds", currentTime() - timeStamp);
return didAnyWork;
}
bool IconDatabase::writeToDatabase()
{
ASSERT_ICON_SYNC_THREAD();
#ifndef NDEBUG
double timeStamp = currentTime();
#endif
bool didAnyWork = false;
// We can copy the current work queue then clear it out - If any new work comes in while we're writing out,
// we'll pick it up on the next pass. This greatly simplifies the locking strategy for this method and remains cohesive with changes
// asked for by the database on the main thread
Vector<IconSnapshot> iconSnapshots;
Vector<PageURLSnapshot> pageSnapshots;
{
MutexLocker locker(m_pendingSyncLock);
iconSnapshots.appendRange(m_iconsPendingSync.begin().values(), m_iconsPendingSync.end().values());
m_iconsPendingSync.clear();
pageSnapshots.appendRange(m_pageURLsPendingSync.begin().values(), m_pageURLsPendingSync.end().values());
m_pageURLsPendingSync.clear();
}
if (iconSnapshots.size() || pageSnapshots.size())
didAnyWork = true;
SQLiteTransaction syncTransaction(m_syncDB);
syncTransaction.begin();
for (unsigned i = 0; i < iconSnapshots.size(); ++i) {
writeIconSnapshotToSQLDatabase(iconSnapshots[i]);
LOG(IconDatabase, "Wrote IconRecord for IconURL %s with timeStamp of %i to the DB", urlForLogging(iconSnapshots[i].iconURL).ascii().data(), iconSnapshots[i].timestamp);
}
for (unsigned i = 0; i < pageSnapshots.size(); ++i) {
// If the icon URL is empty, this page is meant to be deleted
// ASSERTs are sanity checks to make sure the mappings exist if they should and don't if they shouldn't
if (pageSnapshots[i].iconURL.isEmpty())
removePageURLFromSQLDatabase(pageSnapshots[i].pageURL);
else
setIconURLForPageURLInSQLDatabase(pageSnapshots[i].iconURL, pageSnapshots[i].pageURL);
LOG(IconDatabase, "Committed IconURL for PageURL %s to database", urlForLogging(pageSnapshots[i].pageURL).ascii().data());
}
syncTransaction.commit();
// Check to make sure there are no dangling PageURLs - If there are, we want to output one log message but not spam the console potentially every few seconds
if (didAnyWork)
checkForDanglingPageURLs(false);
LOG(IconDatabase, "Updating the database took %.4f seconds", currentTime() - timeStamp);
return didAnyWork;
}
void IconDatabase::pruneUnretainedIcons()
{
ASSERT_ICON_SYNC_THREAD();
if (!isOpen())
return;
// This method should only be called once per run
ASSERT(!m_initialPruningComplete);
// This method relies on having read in all page URLs from the database earlier.
ASSERT(m_iconURLImportComplete);
// Get the known PageURLs from the db, and record the ID of any that are not in the retain count set.
Vector<int64_t> pageIDsToDelete;
SQLiteStatement pageSQL(m_syncDB, "SELECT rowid, url FROM PageURL;");
pageSQL.prepare();
int result;
while ((result = pageSQL.step()) == SQLResultRow) {
MutexLocker locker(m_urlAndIconLock);
if (!m_pageURLToRecordMap.contains(pageSQL.getColumnText(1)))
pageIDsToDelete.append(pageSQL.getColumnInt64(0));
}
if (result != SQLResultDone)
LOG_ERROR("Error reading PageURL table from on-disk DB");
pageSQL.finalize();
// Delete page URLs that were in the table, but not in our retain count set.
size_t numToDelete = pageIDsToDelete.size();
if (numToDelete) {
SQLiteTransaction pruningTransaction(m_syncDB);
pruningTransaction.begin();
SQLiteStatement pageDeleteSQL(m_syncDB, "DELETE FROM PageURL WHERE rowid = (?);");
pageDeleteSQL.prepare();
for (size_t i = 0; i < numToDelete; ++i) {
LOG(IconDatabase, "Pruning page with rowid %lli from disk", pageIDsToDelete[i]);
pageDeleteSQL.bindInt64(1, pageIDsToDelete[i]);
int result = pageDeleteSQL.step();
if (result != SQLResultDone)
LOG_ERROR("Unabled to delete page with id %lli from disk", pageIDsToDelete[i]);
pageDeleteSQL.reset();
// If the thread was asked to terminate, we should commit what pruning we've done so far, figuring we can
// finish the rest later (hopefully)
if (shouldStopThreadActivity()) {
pruningTransaction.commit();
return;
}
}
pruningTransaction.commit();
pageDeleteSQL.finalize();
}
// Deleting unreferenced icons from the Icon tables has to be atomic -
// If the user quits while these are taking place, they might have to wait. Thankfully this will rarely be an issue
// A user on a network home directory with a wildly inconsistent database might see quite a pause...
SQLiteTransaction pruningTransaction(m_syncDB);
pruningTransaction.begin();
// Wipe Icons that aren't retained
if (!m_syncDB.executeCommand("DELETE FROM IconData WHERE iconID NOT IN (SELECT iconID FROM PageURL);"))
LOG_ERROR("Failed to execute SQL to prune unretained icons from the on-disk IconData table");
if (!m_syncDB.executeCommand("DELETE FROM IconInfo WHERE iconID NOT IN (SELECT iconID FROM PageURL);"))
LOG_ERROR("Failed to execute SQL to prune unretained icons from the on-disk IconInfo table");
pruningTransaction.commit();
checkForDanglingPageURLs(true);
m_initialPruningComplete = true;
}
void IconDatabase::checkForDanglingPageURLs(bool pruneIfFound)
{
ASSERT_ICON_SYNC_THREAD();
// This check can be relatively expensive so we don't do it in a release build unless the caller has asked us to prune any dangling
// entries. We also don't want to keep performing this check and reporting this error if it has already found danglers before so we
// keep track of whether we've found any. We skip the check in the release build pretending to have already found danglers already.
#ifndef NDEBUG
static bool danglersFound = true;
#else
static bool danglersFound = false;
#endif
if ((pruneIfFound || !danglersFound) && SQLiteStatement(m_syncDB, "SELECT url FROM PageURL WHERE PageURL.iconID NOT IN (SELECT iconID FROM IconInfo) LIMIT 1;").returnsAtLeastOneResult()) {
danglersFound = true;
LOG(IconDatabase, "Dangling PageURL entries found");
if (pruneIfFound && !m_syncDB.executeCommand("DELETE FROM PageURL WHERE iconID NOT IN (SELECT iconID FROM IconInfo);"))
LOG(IconDatabase, "Unable to prune dangling PageURLs");
}
}
void IconDatabase::removeAllIconsOnThread()
{
ASSERT_ICON_SYNC_THREAD();
LOG(IconDatabase, "Removing all icons on the sync thread");
// Delete all the prepared statements so they can start over
deleteAllPreparedStatements();
// To reset the on-disk database, we'll wipe all its tables then vacuum it
// This is easier and safer than closing it, deleting the file, and recreating from scratch
m_syncDB.clearAllTables();
m_syncDB.runVacuumCommand();
createDatabaseTables(m_syncDB);
LOG(IconDatabase, "Dispatching notification that we removed all icons");
m_client->dispatchDidRemoveAllIcons();
}
void IconDatabase::deleteAllPreparedStatements()
{
ASSERT_ICON_SYNC_THREAD();
m_setIconIDForPageURLStatement.clear();
m_removePageURLStatement.clear();
m_getIconIDForIconURLStatement.clear();
m_getImageDataForIconURLStatement.clear();
m_addIconToIconInfoStatement.clear();
m_addIconToIconDataStatement.clear();
m_getImageDataStatement.clear();
m_deletePageURLsForIconURLStatement.clear();
m_deleteIconFromIconInfoStatement.clear();
m_deleteIconFromIconDataStatement.clear();
m_updateIconInfoStatement.clear();
m_updateIconDataStatement.clear();
m_setIconInfoStatement.clear();
m_setIconDataStatement.clear();
}
void* IconDatabase::cleanupSyncThread()
{
ASSERT_ICON_SYNC_THREAD();
#ifndef NDEBUG
double timeStamp = currentTime();
#endif
// If the removeIcons flag is set, remove all icons from the db.
if (m_removeIconsRequested)
removeAllIconsOnThread();
// Sync remaining icons out
LOG(IconDatabase, "(THREAD) Doing final writeout and closure of sync thread");
writeToDatabase();
// Close the database
MutexLocker locker(m_syncLock);
m_databaseDirectory = String();
m_completeDatabasePath = String();
deleteAllPreparedStatements();
m_syncDB.close();
#ifndef NDEBUG
LOG(IconDatabase, "(THREAD) Final closure took %.4f seconds", currentTime() - timeStamp);
#endif
m_syncThreadRunning = false;
return 0;
}
bool IconDatabase::imported()
{
ASSERT_ICON_SYNC_THREAD();
if (m_isImportedSet)
return m_imported;
SQLiteStatement query(m_syncDB, "SELECT IconDatabaseInfo.value FROM IconDatabaseInfo WHERE IconDatabaseInfo.key = \"ImportedSafari2Icons\";");
if (query.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare imported statement");
return false;
}
int result = query.step();
if (result == SQLResultRow)
result = query.getColumnInt(0);
else {
if (result != SQLResultDone)
LOG_ERROR("imported statement failed");
result = 0;
}
m_isImportedSet = true;
return m_imported = result;
}
void IconDatabase::setImported(bool import)
{
ASSERT_ICON_SYNC_THREAD();
m_imported = import;
m_isImportedSet = true;
String queryString = import ?
"INSERT INTO IconDatabaseInfo (key, value) VALUES (\"ImportedSafari2Icons\", 1);" :
"INSERT INTO IconDatabaseInfo (key, value) VALUES (\"ImportedSafari2Icons\", 0);";
SQLiteStatement query(m_syncDB, queryString);
if (query.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare set imported statement");
return;
}
if (query.step() != SQLResultDone)
LOG_ERROR("set imported statement failed");
}
// readySQLiteStatement() handles two things
// 1 - If the SQLDatabase& argument is different, the statement must be destroyed and remade. This happens when the user
// switches to and from private browsing
// 2 - Lazy construction of the Statement in the first place, in case we've never made this query before
inline void readySQLiteStatement(OwnPtr<SQLiteStatement>& statement, SQLiteDatabase& db, const String& str)
{
if (statement && (statement->database() != &db || statement->isExpired())) {
if (statement->isExpired())
LOG(IconDatabase, "SQLiteStatement associated with %s is expired", str.ascii().data());
statement.set(0);
}
if (!statement) {
statement.set(new SQLiteStatement(db, str));
if (statement->prepare() != SQLResultOk)
LOG_ERROR("Preparing statement %s failed", str.ascii().data());
}
}
void IconDatabase::setIconURLForPageURLInSQLDatabase(const String& iconURL, const String& pageURL)
{
ASSERT_ICON_SYNC_THREAD();
int64_t iconID = getIconIDForIconURLFromSQLDatabase(iconURL);
if (!iconID)
iconID = addIconURLToSQLDatabase(iconURL);
if (!iconID) {
LOG_ERROR("Failed to establish an ID for iconURL %s", urlForLogging(iconURL).ascii().data());
ASSERT(false);
return;
}
setIconIDForPageURLInSQLDatabase(iconID, pageURL);
}
void IconDatabase::setIconIDForPageURLInSQLDatabase(int64_t iconID, const String& pageURL)
{
ASSERT_ICON_SYNC_THREAD();
readySQLiteStatement(m_setIconIDForPageURLStatement, m_syncDB, "INSERT INTO PageURL (url, iconID) VALUES ((?), ?);");
m_setIconIDForPageURLStatement->bindText(1, pageURL);
m_setIconIDForPageURLStatement->bindInt64(2, iconID);
int result = m_setIconIDForPageURLStatement->step();
if (result != SQLResultDone) {
ASSERT(false);
LOG_ERROR("setIconIDForPageURLQuery failed for url %s", urlForLogging(pageURL).ascii().data());
}
m_setIconIDForPageURLStatement->reset();
}
void IconDatabase::removePageURLFromSQLDatabase(const String& pageURL)
{
ASSERT_ICON_SYNC_THREAD();
readySQLiteStatement(m_removePageURLStatement, m_syncDB, "DELETE FROM PageURL WHERE url = (?);");
m_removePageURLStatement->bindText(1, pageURL);
if (m_removePageURLStatement->step() != SQLResultDone)
LOG_ERROR("removePageURLFromSQLDatabase failed for url %s", urlForLogging(pageURL).ascii().data());
m_removePageURLStatement->reset();
}
int64_t IconDatabase::getIconIDForIconURLFromSQLDatabase(const String& iconURL)
{
ASSERT_ICON_SYNC_THREAD();
readySQLiteStatement(m_getIconIDForIconURLStatement, m_syncDB, "SELECT IconInfo.iconID FROM IconInfo WHERE IconInfo.url = (?);");
m_getIconIDForIconURLStatement->bindText(1, iconURL);
int64_t result = m_getIconIDForIconURLStatement->step();
if (result == SQLResultRow)
result = m_getIconIDForIconURLStatement->getColumnInt64(0);
else {
if (result != SQLResultDone)
LOG_ERROR("getIconIDForIconURLFromSQLDatabase failed for url %s", urlForLogging(iconURL).ascii().data());
result = 0;
}
m_getIconIDForIconURLStatement->reset();
return result;
}
int64_t IconDatabase::addIconURLToSQLDatabase(const String& iconURL)
{
ASSERT_ICON_SYNC_THREAD();
// There would be a transaction here to make sure these two inserts are atomic
// In practice the only caller of this method is always wrapped in a transaction itself so placing another
// here is unnecessary
readySQLiteStatement(m_addIconToIconInfoStatement, m_syncDB, "INSERT INTO IconInfo (url, stamp) VALUES (?, 0);");
m_addIconToIconInfoStatement->bindText(1, iconURL);
int result = m_addIconToIconInfoStatement->step();
m_addIconToIconInfoStatement->reset();
if (result != SQLResultDone) {
LOG_ERROR("addIconURLToSQLDatabase failed to insert %s into IconInfo", urlForLogging(iconURL).ascii().data());
return 0;
}
int64_t iconID = m_syncDB.lastInsertRowID();
readySQLiteStatement(m_addIconToIconDataStatement, m_syncDB, "INSERT INTO IconData (iconID, data) VALUES (?, ?);");
m_addIconToIconDataStatement->bindInt64(1, iconID);
result = m_addIconToIconDataStatement->step();
m_addIconToIconDataStatement->reset();
if (result != SQLResultDone) {
LOG_ERROR("addIconURLToSQLDatabase failed to insert %s into IconData", urlForLogging(iconURL).ascii().data());
return 0;
}
return iconID;
}
PassRefPtr<SharedBuffer> IconDatabase::getImageDataForIconURLFromSQLDatabase(const String& iconURL)
{
ASSERT_ICON_SYNC_THREAD();
RefPtr<SharedBuffer> imageData;
readySQLiteStatement(m_getImageDataForIconURLStatement, m_syncDB, "SELECT IconData.data FROM IconData WHERE IconData.iconID IN (SELECT iconID FROM IconInfo WHERE IconInfo.url = (?));");
m_getImageDataForIconURLStatement->bindText(1, iconURL);
int result = m_getImageDataForIconURLStatement->step();
if (result == SQLResultRow) {
Vector<char> data;
m_getImageDataForIconURLStatement->getColumnBlobAsVector(0, data);
imageData = SharedBuffer::create(data.data(), data.size());
} else if (result != SQLResultDone)
LOG_ERROR("getImageDataForIconURLFromSQLDatabase failed for url %s", urlForLogging(iconURL).ascii().data());
m_getImageDataForIconURLStatement->reset();
return imageData.release();
}
void IconDatabase::removeIconFromSQLDatabase(const String& iconURL)
{
ASSERT_ICON_SYNC_THREAD();
if (iconURL.isEmpty())
return;
// There would be a transaction here to make sure these removals are atomic
// In practice the only caller of this method is always wrapped in a transaction itself so placing another here is unnecessary
// It's possible this icon is not in the database because of certain rapid browsing patterns (such as a stress test) where the
// icon is marked to be added then marked for removal before it is ever written to disk. No big deal, early return
int64_t iconID = getIconIDForIconURLFromSQLDatabase(iconURL);
if (!iconID)
return;
readySQLiteStatement(m_deletePageURLsForIconURLStatement, m_syncDB, "DELETE FROM PageURL WHERE PageURL.iconID = (?);");
m_deletePageURLsForIconURLStatement->bindInt64(1, iconID);
if (m_deletePageURLsForIconURLStatement->step() != SQLResultDone)
LOG_ERROR("m_deletePageURLsForIconURLStatement failed for url %s", urlForLogging(iconURL).ascii().data());
readySQLiteStatement(m_deleteIconFromIconInfoStatement, m_syncDB, "DELETE FROM IconInfo WHERE IconInfo.iconID = (?);");
m_deleteIconFromIconInfoStatement->bindInt64(1, iconID);
if (m_deleteIconFromIconInfoStatement->step() != SQLResultDone)
LOG_ERROR("m_deleteIconFromIconInfoStatement failed for url %s", urlForLogging(iconURL).ascii().data());
readySQLiteStatement(m_deleteIconFromIconDataStatement, m_syncDB, "DELETE FROM IconData WHERE IconData.iconID = (?);");
m_deleteIconFromIconDataStatement->bindInt64(1, iconID);
if (m_deleteIconFromIconDataStatement->step() != SQLResultDone)
LOG_ERROR("m_deleteIconFromIconDataStatement failed for url %s", urlForLogging(iconURL).ascii().data());
m_deletePageURLsForIconURLStatement->reset();
m_deleteIconFromIconInfoStatement->reset();
m_deleteIconFromIconDataStatement->reset();
}
void IconDatabase::writeIconSnapshotToSQLDatabase(const IconSnapshot& snapshot)
{
ASSERT_ICON_SYNC_THREAD();
if (snapshot.iconURL.isEmpty())
return;
// A nulled out timestamp and data means this icon is destined to be deleted - do that instead of writing it out
if (!snapshot.timestamp && !snapshot.data) {
LOG(IconDatabase, "Removing %s from on-disk database", urlForLogging(snapshot.iconURL).ascii().data());
removeIconFromSQLDatabase(snapshot.iconURL);
return;
}
// There would be a transaction here to make sure these removals are atomic
// In practice the only caller of this method is always wrapped in a transaction itself so placing another here is unnecessary
// Get the iconID for this url
int64_t iconID = getIconIDForIconURLFromSQLDatabase(snapshot.iconURL);
// If there is already an iconID in place, update the database.
// Otherwise, insert new records
if (iconID) {
readySQLiteStatement(m_updateIconInfoStatement, m_syncDB, "UPDATE IconInfo SET stamp = ?, url = ? WHERE iconID = ?;");
m_updateIconInfoStatement->bindInt64(1, snapshot.timestamp);
m_updateIconInfoStatement->bindText(2, snapshot.iconURL);
m_updateIconInfoStatement->bindInt64(3, iconID);
if (m_updateIconInfoStatement->step() != SQLResultDone)
LOG_ERROR("Failed to update icon info for url %s", urlForLogging(snapshot.iconURL).ascii().data());
m_updateIconInfoStatement->reset();
readySQLiteStatement(m_updateIconDataStatement, m_syncDB, "UPDATE IconData SET data = ? WHERE iconID = ?;");
m_updateIconDataStatement->bindInt64(2, iconID);
// If we *have* image data, bind it to this statement - Otherwise bind "null" for the blob data,
// signifying that this icon doesn't have any data
if (snapshot.data && snapshot.data->size())
m_updateIconDataStatement->bindBlob(1, snapshot.data->data(), snapshot.data->size());
else
m_updateIconDataStatement->bindNull(1);
if (m_updateIconDataStatement->step() != SQLResultDone)
LOG_ERROR("Failed to update icon data for url %s", urlForLogging(snapshot.iconURL).ascii().data());
m_updateIconDataStatement->reset();
} else {
readySQLiteStatement(m_setIconInfoStatement, m_syncDB, "INSERT INTO IconInfo (url,stamp) VALUES (?, ?);");
m_setIconInfoStatement->bindText(1, snapshot.iconURL);
m_setIconInfoStatement->bindInt64(2, snapshot.timestamp);
if (m_setIconInfoStatement->step() != SQLResultDone)
LOG_ERROR("Failed to set icon info for url %s", urlForLogging(snapshot.iconURL).ascii().data());
m_setIconInfoStatement->reset();
int64_t iconID = m_syncDB.lastInsertRowID();
readySQLiteStatement(m_setIconDataStatement, m_syncDB, "INSERT INTO IconData (iconID, data) VALUES (?, ?);");
m_setIconDataStatement->bindInt64(1, iconID);
// If we *have* image data, bind it to this statement - Otherwise bind "null" for the blob data,
// signifying that this icon doesn't have any data
if (snapshot.data && snapshot.data->size())
m_setIconDataStatement->bindBlob(2, snapshot.data->data(), snapshot.data->size());
else
m_setIconDataStatement->bindNull(2);
if (m_setIconDataStatement->step() != SQLResultDone)
LOG_ERROR("Failed to set icon data for url %s", urlForLogging(snapshot.iconURL).ascii().data());
m_setIconDataStatement->reset();
}
}
} // namespace WebCore
#endif // ENABLE(ICONDATABASE)