diff options
Diffstat (limited to 'src/corelib/kernel/qcore_mac_objc.mm')
| -rw-r--r-- | src/corelib/kernel/qcore_mac_objc.mm | 145 |
1 files changed, 141 insertions, 4 deletions
diff --git a/src/corelib/kernel/qcore_mac_objc.mm b/src/corelib/kernel/qcore_mac_objc.mm index 231afb991c..24d73fa8be 100644 --- a/src/corelib/kernel/qcore_mac_objc.mm +++ b/src/corelib/kernel/qcore_mac_objc.mm @@ -42,7 +42,6 @@ #ifdef Q_OS_OSX #include <AppKit/NSText.h> -#include <Carbon/Carbon.h> #endif #include <qdebug.h> @@ -53,7 +52,11 @@ QT_BEGIN_NAMESPACE QDebug operator<<(QDebug dbg, const NSObject *nsObject) { - return dbg << (nsObject ? nsObject.description.UTF8String : "NSObject(0x0)"); + return dbg << (nsObject ? + dbg.verbosity() > 2 ? + nsObject.debugDescription.UTF8String : + nsObject.description.UTF8String + : "NSObject(0x0)"); } QDebug operator<<(QDebug dbg, CFStringRef stringRef) @@ -81,19 +84,122 @@ QT_FOR_EACH_MUTABLE_CORE_GRAPHICS_TYPE(QT_DECLARE_WEAK_QDEBUG_OPERATOR_FOR_CF_TY // ------------------------------------------------------------------------- +QT_END_NAMESPACE +QT_USE_NAMESPACE +@interface QT_MANGLE_NAMESPACE(QMacAutoReleasePoolTracker) : NSObject +{ + NSAutoreleasePool **m_pool; +} +-(id)initWithPool:(NSAutoreleasePool**)pool; +@end +@implementation QT_MANGLE_NAMESPACE(QMacAutoReleasePoolTracker) +-(id)initWithPool:(NSAutoreleasePool**)pool +{ + if (self = [super init]) + m_pool = pool; + return self; +} +-(void)dealloc +{ + if (*m_pool) { + // The pool is still valid, which means we're not being drained from + // the corresponding QMacAutoReleasePool (see below). + + // QMacAutoReleasePool has only a single member, the NSAutoreleasePool* + // so the address of that member is also the QMacAutoReleasePool itself. + QMacAutoReleasePool *pool = reinterpret_cast<QMacAutoReleasePool *>(m_pool); + qWarning() << "Premature drain of" << pool << "This can happen if you've allocated" + << "the pool on the heap, or as a member of a heap-allocated object. This is not a" + << "supported use of QMacAutoReleasePool, and might result in crashes when objects" + << "in the pool are deallocated and then used later on under the assumption they" + << "will be valid until" << pool << "has been drained."; + + // Reset the pool so that it's not drained again later on + *m_pool = nullptr; + } + + [super dealloc]; +} +@end +QT_NAMESPACE_ALIAS_OBJC_CLASS(QMacAutoReleasePoolTracker); +QT_BEGIN_NAMESPACE + QMacAutoReleasePool::QMacAutoReleasePool() : pool([[NSAutoreleasePool alloc] init]) { + [[[QMacAutoReleasePoolTracker alloc] initWithPool: + reinterpret_cast<NSAutoreleasePool **>(&pool)] autorelease]; } QMacAutoReleasePool::~QMacAutoReleasePool() { + if (!pool) { + qWarning() << "Prematurely drained pool" << this << "finally drained. Any objects belonging" + << "to this pool have already been released, and have potentially been invalid since the" + << "premature drain earlier on."; + return; + } + + // Save and reset pool before draining, so that the pool tracker can know + // that it's being drained by its owning pool. + NSAutoreleasePool *savedPool = static_cast<NSAutoreleasePool*>(pool); + pool = nullptr; + // Drain behaves the same as release, with the advantage that // if we're ever used in a garbage-collected environment, the // drain acts as a hint to the garbage collector to collect. - [static_cast<NSAutoreleasePool*>(pool) drain]; + [savedPool drain]; +} + +#ifndef QT_NO_DEBUG_STREAM +QDebug operator<<(QDebug debug, const QMacAutoReleasePool *pool) +{ + QDebugStateSaver saver(debug); + debug.nospace(); + debug << "QMacAutoReleasePool(" << (const void *)pool << ')'; + return debug; +} +#endif // !QT_NO_DEBUG_STREAM + +#ifdef Q_OS_MACOS +/* + Ensure that Objective-C objects auto-released in main(), directly or indirectly, + after QCoreApplication construction, are released when the app goes out of scope. + The memory will be reclaimed by the system either way when the process exits, + but by having a root level pool we ensure that the objects get their dealloc + methods called, which is useful for debugging object ownership graphs, etc. +*/ + +QT_END_NAMESPACE +#define ROOT_LEVEL_POOL_MARKER QT_ROOT_LEVEL_POOL__THESE_OBJECTS_WILL_BE_RELEASED_WHEN_QAPP_GOES_OUT_OF_SCOPE +@interface QT_MANGLE_NAMESPACE(ROOT_LEVEL_POOL_MARKER) : NSObject @end +@implementation QT_MANGLE_NAMESPACE(ROOT_LEVEL_POOL_MARKER) @end +QT_NAMESPACE_ALIAS_OBJC_CLASS(ROOT_LEVEL_POOL_MARKER); +QT_BEGIN_NAMESPACE + +const char ROOT_LEVEL_POOL_DISABLE_SWITCH[] = "QT_DISABLE_ROOT_LEVEL_AUTORELEASE_POOL"; + +QMacRootLevelAutoReleasePool::QMacRootLevelAutoReleasePool() +{ + if (qEnvironmentVariableIsSet(ROOT_LEVEL_POOL_DISABLE_SWITCH)) + return; + + pool.reset(new QMacAutoReleasePool); + + [[[ROOT_LEVEL_POOL_MARKER alloc] init] autorelease]; + + if (qstrcmp(qgetenv("OBJC_DEBUG_MISSING_POOLS"), "YES") == 0) { + qDebug("QCoreApplication root level NSAutoreleasePool in place. Break on ~%s and use\n" \ + "'p [NSAutoreleasePool showPools]' to show leaked objects, or set %s", + __FUNCTION__, ROOT_LEVEL_POOL_DISABLE_SWITCH); + } } +QMacRootLevelAutoReleasePool::~QMacRootLevelAutoReleasePool() +{ +} +#endif + // ------------------------------------------------------------------------- #ifdef Q_OS_OSX @@ -140,6 +246,7 @@ struct qtKey2CocoaKeySortLessThan } }; +static const int NSEscapeCharacter = 27; // not defined by Cocoa headers static const int NumEntries = 59; static const KeyPair entries[NumEntries] = { { NSEnterCharacter, Qt::Key_Enter }, @@ -148,7 +255,7 @@ static const KeyPair entries[NumEntries] = { { NSNewlineCharacter, Qt::Key_Return }, { NSCarriageReturnCharacter, Qt::Key_Return }, { NSBackTabCharacter, Qt::Key_Backtab }, - { kEscapeCharCode, Qt::Key_Escape }, + { NSEscapeCharacter, Qt::Key_Escape }, // Cocoa sends us delete when pressing backspace! // (NB when we reverse this list in qtKey2CocoaKey, there // will be two indices of Qt::Key_Backspace. But is seems to work @@ -237,6 +344,36 @@ Qt::Key qt_mac_cocoaKey2QtKey(QChar keyCode) #endif // Q_OS_OSX +void qt_apple_check_os_version() +{ +#if defined(__IPHONE_OS_VERSION_MIN_REQUIRED) + const char *os = "iOS"; + const int version = __IPHONE_OS_VERSION_MIN_REQUIRED; +#elif defined(__TV_OS_VERSION_MIN_REQUIRED) + const char *os = "tvOS"; + const int version = __TV_OS_VERSION_MIN_REQUIRED; +#elif defined(__WATCH_OS_VERSION_MIN_REQUIRED) + const char *os = "watchOS"; + const int version = __WATCH_OS_VERSION_MIN_REQUIRED; +#elif defined(__MAC_OS_X_VERSION_MIN_REQUIRED) + const char *os = "macOS"; + const int version = __MAC_OS_X_VERSION_MIN_REQUIRED; +#endif + const NSOperatingSystemVersion required = (NSOperatingSystemVersion){ + version / 10000, version / 100 % 100, version % 100}; + const NSOperatingSystemVersion current = NSProcessInfo.processInfo.operatingSystemVersion; + if (![NSProcessInfo.processInfo isOperatingSystemAtLeastVersion:required]) { + fprintf(stderr, "You can't use this version of %s with this version of %s. " + "You have %s %ld.%ld.%ld. Qt requires %s %ld.%ld.%ld or later.\n", + (reinterpret_cast<const NSString *>( + NSBundle.mainBundle.infoDictionary[@"CFBundleName"]).UTF8String), + os, + os, long(current.majorVersion), long(current.minorVersion), long(current.patchVersion), + os, long(required.majorVersion), long(required.minorVersion), long(required.patchVersion)); + abort(); + } +} + // ------------------------------------------------------------------------- QT_END_NAMESPACE |