зеркало из https://github.com/mozilla/gecko-dev.git
280 строки
8.5 KiB
C++
280 строки
8.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nsComponentManager_h__
|
|
#define nsComponentManager_h__
|
|
|
|
#include "nsXPCOM.h"
|
|
|
|
#include "nsIComponentManager.h"
|
|
#include "nsIComponentRegistrar.h"
|
|
#include "nsIMemoryReporter.h"
|
|
#include "nsIServiceManager.h"
|
|
#include "nsIFile.h"
|
|
#include "mozilla/ArenaAllocator.h"
|
|
#include "mozilla/Atomics.h"
|
|
#include "mozilla/MemoryReporting.h"
|
|
#include "mozilla/Module.h"
|
|
#include "mozilla/Monitor.h"
|
|
#include "mozilla/UniquePtr.h"
|
|
#include "nsXULAppAPI.h"
|
|
#include "nsIFactory.h"
|
|
#include "nsIInterfaceRequestor.h"
|
|
#include "nsIInterfaceRequestorUtils.h"
|
|
#include "PLDHashTable.h"
|
|
#include "prtime.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsWeakReference.h"
|
|
#include "nsCOMArray.h"
|
|
#include "nsTHashMap.h"
|
|
#include "nsInterfaceHashtable.h"
|
|
#include "nsClassHashtable.h"
|
|
#include "nsTArray.h"
|
|
|
|
#include "mozilla/Components.h"
|
|
#include "mozilla/Maybe.h"
|
|
#include "mozilla/Omnijar.h"
|
|
#include "mozilla/Attributes.h"
|
|
|
|
struct nsFactoryEntry;
|
|
struct PRThread;
|
|
|
|
#define NS_COMPONENTMANAGER_CID \
|
|
{ /* 91775d60-d5dc-11d2-92fb-00e09805570f */ \
|
|
0x91775d60, 0xd5dc, 0x11d2, { \
|
|
0x92, 0xfb, 0x00, 0xe0, 0x98, 0x05, 0x57, 0x0f \
|
|
} \
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
extern const mozilla::Module kXPCOMModule;
|
|
|
|
namespace {
|
|
class EntryWrapper;
|
|
} // namespace
|
|
|
|
namespace mozilla {
|
|
namespace xpcom {
|
|
|
|
bool ProcessSelectorMatches(Module::ProcessSelector aSelector);
|
|
bool FastProcessSelectorMatches(Module::ProcessSelector aSelector);
|
|
|
|
} // namespace xpcom
|
|
} // namespace mozilla
|
|
|
|
class nsComponentManagerImpl final : public nsIComponentManager,
|
|
public nsIServiceManager,
|
|
public nsSupportsWeakReference,
|
|
public nsIComponentRegistrar,
|
|
public nsIInterfaceRequestor,
|
|
public nsIMemoryReporter {
|
|
public:
|
|
NS_DECL_THREADSAFE_ISUPPORTS
|
|
NS_DECL_NSIINTERFACEREQUESTOR
|
|
NS_DECL_NSICOMPONENTMANAGER
|
|
NS_DECL_NSICOMPONENTREGISTRAR
|
|
NS_DECL_NSIMEMORYREPORTER
|
|
|
|
static nsresult Create(nsISupports* aOuter, REFNSIID aIID, void** aResult);
|
|
|
|
nsresult RegistryLocationForFile(nsIFile* aFile, nsCString& aResult);
|
|
nsresult FileForRegistryLocation(const nsCString& aLocation, nsIFile** aSpec);
|
|
|
|
NS_DECL_NSISERVICEMANAGER
|
|
|
|
// nsComponentManagerImpl methods:
|
|
nsComponentManagerImpl();
|
|
|
|
static nsComponentManagerImpl* gComponentManager;
|
|
nsresult Init();
|
|
|
|
nsresult Shutdown(void);
|
|
|
|
nsresult FreeServices();
|
|
|
|
already_AddRefed<nsIFactory> FindFactory(const nsCID& aClass);
|
|
already_AddRefed<nsIFactory> FindFactory(const char* aContractID,
|
|
uint32_t aContractIDLen);
|
|
|
|
already_AddRefed<nsIFactory> LoadFactory(nsFactoryEntry* aEntry);
|
|
|
|
nsTHashMap<nsIDPointerHashKey, nsFactoryEntry*> mFactories;
|
|
nsTHashMap<nsCStringHashKey, nsFactoryEntry*> mContractIDs;
|
|
|
|
mozilla::Monitor mLock;
|
|
|
|
mozilla::Maybe<EntryWrapper> LookupByCID(const nsID& aCID);
|
|
mozilla::Maybe<EntryWrapper> LookupByCID(const mozilla::MonitorAutoLock&,
|
|
const nsID& aCID);
|
|
|
|
mozilla::Maybe<EntryWrapper> LookupByContractID(
|
|
const nsACString& aContractID);
|
|
mozilla::Maybe<EntryWrapper> LookupByContractID(
|
|
const mozilla::MonitorAutoLock&, const nsACString& aContractID);
|
|
|
|
nsresult GetService(mozilla::xpcom::ModuleID, const nsIID& aIID,
|
|
void** aResult);
|
|
|
|
static bool JSLoaderReady() { return gComponentManager->mJSLoaderReady; }
|
|
|
|
static void InitializeStaticModules();
|
|
static void InitializeModuleLocations();
|
|
|
|
struct ComponentLocation {
|
|
NSLocationType type;
|
|
mozilla::FileLocation location;
|
|
};
|
|
|
|
class ComponentLocationComparator {
|
|
public:
|
|
bool Equals(const ComponentLocation& aA,
|
|
const ComponentLocation& aB) const {
|
|
return (aA.type == aB.type && aA.location.Equals(aB.location));
|
|
}
|
|
};
|
|
|
|
static nsTArray<ComponentLocation>* sModuleLocations;
|
|
|
|
class KnownModule {
|
|
public:
|
|
/**
|
|
* Static or binary module.
|
|
*/
|
|
explicit KnownModule(const mozilla::Module* aModule)
|
|
: mModule(aModule), mLoaded(false), mFailed(false) {}
|
|
|
|
explicit KnownModule(mozilla::FileLocation& aFile)
|
|
: mModule(nullptr), mFile(aFile), mLoaded(false), mFailed(false) {}
|
|
|
|
~KnownModule() {
|
|
if (mLoaded && mModule->unloadProc) {
|
|
mModule->unloadProc();
|
|
}
|
|
}
|
|
|
|
bool Load();
|
|
|
|
const mozilla::Module* Module() const { return mModule; }
|
|
|
|
/**
|
|
* For error logging, get a description of this module, either the
|
|
* file path, or <static module>.
|
|
*/
|
|
nsCString Description() const;
|
|
|
|
private:
|
|
const mozilla::Module* mModule;
|
|
mozilla::FileLocation mFile;
|
|
bool mLoaded;
|
|
bool mFailed;
|
|
};
|
|
|
|
// The KnownModule is kept alive by these members, it is
|
|
// referenced by pointer from the factory entries.
|
|
nsTArray<mozilla::UniquePtr<KnownModule>> mKnownStaticModules;
|
|
// The key is the URI string of the module
|
|
nsClassHashtable<nsCStringHashKey, KnownModule> mKnownModules;
|
|
|
|
// Mutex not held
|
|
void RegisterModule(const mozilla::Module* aModule);
|
|
|
|
// Mutex held
|
|
void RegisterCIDEntryLocked(const mozilla::Module::CIDEntry* aEntry,
|
|
KnownModule* aModule);
|
|
void RegisterContractIDLocked(const mozilla::Module::ContractIDEntry* aEntry);
|
|
|
|
// Mutex not held
|
|
void RegisterManifest(NSLocationType aType, mozilla::FileLocation& aFile,
|
|
bool aChromeOnly);
|
|
|
|
struct ManifestProcessingContext {
|
|
ManifestProcessingContext(NSLocationType aType,
|
|
mozilla::FileLocation& aFile, bool aChromeOnly)
|
|
: mType(aType), mFile(aFile), mChromeOnly(aChromeOnly) {}
|
|
|
|
~ManifestProcessingContext() = default;
|
|
|
|
NSLocationType mType;
|
|
mozilla::FileLocation mFile;
|
|
bool mChromeOnly;
|
|
};
|
|
|
|
void ManifestManifest(ManifestProcessingContext& aCx, int aLineNo,
|
|
char* const* aArgv);
|
|
void ManifestComponent(ManifestProcessingContext& aCx, int aLineNo,
|
|
char* const* aArgv);
|
|
void ManifestContract(ManifestProcessingContext& aCx, int aLineNo,
|
|
char* const* aArgv);
|
|
void ManifestCategory(ManifestProcessingContext& aCx, int aLineNo,
|
|
char* const* aArgv);
|
|
|
|
void RereadChromeManifests(bool aChromeOnly = true);
|
|
|
|
// Shutdown
|
|
enum {
|
|
NOT_INITIALIZED,
|
|
NORMAL,
|
|
SHUTDOWN_IN_PROGRESS,
|
|
SHUTDOWN_COMPLETE
|
|
} mStatus;
|
|
|
|
mozilla::ArenaAllocator<1024 * 1, 8> mArena;
|
|
|
|
struct PendingServiceInfo {
|
|
const nsCID* cid;
|
|
PRThread* thread;
|
|
};
|
|
|
|
inline PendingServiceInfo* AddPendingService(const nsCID& aServiceCID,
|
|
PRThread* aThread);
|
|
inline void RemovePendingService(mozilla::MonitorAutoLock& aLock,
|
|
const nsCID& aServiceCID);
|
|
inline PRThread* GetPendingServiceThread(const nsCID& aServiceCID) const;
|
|
|
|
nsTArray<PendingServiceInfo> mPendingServices;
|
|
|
|
bool mJSLoaderReady = false;
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
private:
|
|
~nsComponentManagerImpl();
|
|
|
|
nsresult GetServiceLocked(mozilla::Maybe<mozilla::MonitorAutoLock>& aLock,
|
|
EntryWrapper& aEntry, const nsIID& aIID,
|
|
void** aResult);
|
|
};
|
|
|
|
#define NS_MAX_FILENAME_LEN 1024
|
|
|
|
#define NS_ERROR_IS_DIR NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_XPCOM, 24)
|
|
|
|
struct nsFactoryEntry {
|
|
nsFactoryEntry(const mozilla::Module::CIDEntry* aEntry,
|
|
nsComponentManagerImpl::KnownModule* aModule);
|
|
|
|
// nsIComponentRegistrar.registerFactory support
|
|
nsFactoryEntry(const nsCID& aClass, nsIFactory* aFactory);
|
|
|
|
~nsFactoryEntry();
|
|
|
|
already_AddRefed<nsIFactory> GetFactory();
|
|
|
|
nsresult CreateInstance(nsISupports* aOuter, const nsIID& aIID,
|
|
void** aResult);
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf);
|
|
|
|
const mozilla::Module::CIDEntry* mCIDEntry;
|
|
nsComponentManagerImpl::KnownModule* mModule;
|
|
|
|
nsCOMPtr<nsIFactory> mFactory;
|
|
nsCOMPtr<nsISupports> mServiceObject;
|
|
};
|
|
|
|
#endif // nsComponentManager_h__
|