Muldersoft/LameXP
Muldersoft/LameXP
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Make "LockedFile" class more robust against buggy a/v software + some refactoring.

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This commit is contained in:
LoRd_MuldeR 2011-06-23 16:50:02 +02:00
parent 8eba258624
commit 5ac65284ff
2 changed files with 31 additions and 20 deletions
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2
src/Config.h
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@ -30,7 +30,7 @@
#define VER_LAMEXP_MINOR_LO 3
#define VER_LAMEXP_TYPE Alpha
#define VER_LAMEXP_PATCH 1
#define VER_LAMEXP_BUILD 582
#define VER_LAMEXP_BUILD 583
///////////////////////////////////////////////////////////////////////////////
// Tools versions

49
src/LockedFile.cpp
View File

@ -28,33 +28,48 @@
#include <QDir>
#include <QCryptographicHash>
#define THROW(STR) \
{ \
char error_msg[512]; \
strcpy_s(error_msg, 512, STR); \
throw error_msg; \
}
LockedFile::LockedFile(const QString &resourcePath, const QString &outPath, const QByteArray &expectedHash)
{
m_fileHandle = NULL;
QResource resource(resourcePath);
QFile outFile(outPath);
//Make sure the resource is valid
if(!resource.isValid())
{
THROW(QString("Resource '%1' is invalid!").arg(QFileInfo(resourcePath).absoluteFilePath().replace(QRegExp("^:/"), QString())).toUtf8().constData());
}
QFile outFile(outPath);
m_filePath = QFileInfo(outFile).absoluteFilePath();
outFile.open(QIODevice::WriteOnly);
//Open output file
for(int i = 0; i < 64; i++)
{
if(outFile.open(QIODevice::WriteOnly)) break;
if(!i) qWarning("Failed to open file on first attemp, retrying...");
Sleep(100);
}
//Write data to file
if(outFile.isOpen() && outFile.isWritable() && resource.isValid())
if(outFile.isOpen() && outFile.isWritable())
{
if(outFile.write(reinterpret_cast<const char*>(resource.data()), resource.size()) != resource.size())
{
QFile::remove(QFileInfo(outFile).canonicalFilePath());
char error_msg[512];
strcpy_s(error_msg, 512, QString("File '%1' could not be written!").arg(QFileInfo(outFile).fileName()).toUtf8().constData());
throw error_msg;
THROW(QString("File '%1' could not be written!").arg(QFileInfo(outFile).fileName()).toUtf8().constData());
}
outFile.close();
}
else
{
char error_msg[512];
strcpy_s(error_msg, 512, QString("File '%1' could not be created!").arg(QFileInfo(outFile).fileName()).toUtf8().constData());
throw error_msg;
THROW(QString("File '%1' could not be created!").arg(QFileInfo(outFile).fileName()).toUtf8().constData());
}
//Now lock the file!
@ -62,6 +77,7 @@ LockedFile::LockedFile(const QString &resourcePath, const QString &outPath, cons
{
m_fileHandle = CreateFileW(QWCHAR(QDir::toNativeSeparators(m_filePath)), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, NULL, NULL);
if((m_fileHandle != NULL) && (m_fileHandle != INVALID_HANDLE_VALUE)) break;
if(!i) qWarning("Failed to lock file on first attemp, retrying...");
Sleep(100);
}
@ -85,9 +101,7 @@ LockedFile::LockedFile(const QString &resourcePath, const QString &outPath, cons
else
{
QFile::remove(QFileInfo(outFile).canonicalFilePath());
char error_msg[512];
strcpy_s(error_msg, 512, QString("File '%1' could not be read!").arg(QFileInfo(outFile).fileName()).toLatin1().constData());
throw error_msg;
THROW(QString("File '%1' could not be read!").arg(QFileInfo(outFile).fileName()).toLatin1().constData());
}
//Compare hashes
@ -96,9 +110,7 @@ LockedFile::LockedFile(const QString &resourcePath, const QString &outPath, cons
qWarning("\nFile checksum error:\n Expected = %040s\n Detected = %040s\n", expectedHash.constData(), fileHash.result().toHex().constData());
LAMEXP_CLOSE(m_fileHandle);
QFile::remove(QFileInfo(outFile).canonicalFilePath());
char error_msg[512];
strcpy_s(error_msg, 512, QString("File '%1' is corruputed, take care!").arg(QFileInfo(resourcePath).absoluteFilePath().replace(QRegExp("^:/"), QString())).toLatin1().constData());
throw error_msg;
THROW(QString("File '%1' is corruputed, take care!").arg(QFileInfo(resourcePath).absoluteFilePath().replace(QRegExp("^:/"), QString())).toLatin1().constData());
}
}
@ -124,15 +136,14 @@ LockedFile::LockedFile(const QString &filePath)
{
m_fileHandle = CreateFileW(QWCHAR(QDir::toNativeSeparators(filePath)), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, NULL, NULL);
if((m_fileHandle != NULL) && (m_fileHandle != INVALID_HANDLE_VALUE)) break;
if(!i) qWarning("Failed to lock file on first attemp, retrying...");
Sleep(100);
}
//Locked successfully?
if((m_fileHandle == NULL) || (m_fileHandle == INVALID_HANDLE_VALUE))
{
char error_msg[256];
strcpy_s(error_msg, 256, QString("File '%1' could not be locked!").arg(existingFile.fileName()).toLatin1().constData());
throw error_msg;
THROW(QString("File '%1' could not be locked!").arg(existingFile.fileName()).toLatin1().constData());
}
}