/usr/include/thunderbird/mozilla/Module.h is in thunderbird-dev 1:52.8.0-1~deb8u1.
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/* 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 mozilla_Module_h
#define mozilla_Module_h
#include "nscore.h"
#include "nsID.h"
#include "nsIFactory.h"
#include "nsCOMPtr.h" // for already_AddRefed
namespace mozilla {
/**
* A module implements one or more XPCOM components. This structure is used
* for both binary and script modules, but the registration members
* (cids/contractids/categoryentries) are unused for modules which are loaded
* via a module loader.
*/
struct Module
{
static const unsigned int kVersion = 52;
struct CIDEntry;
typedef already_AddRefed<nsIFactory> (*GetFactoryProcPtr)(
const Module& module, const CIDEntry& entry);
typedef nsresult (*ConstructorProcPtr)(nsISupports* aOuter,
const nsIID& aIID,
void** aResult);
typedef nsresult (*LoadFuncPtr)();
typedef void (*UnloadFuncPtr)();
/**
* This selector allows CIDEntrys to be marked so that they're only loaded
* into certain kinds of processes. Selectors can be combined.
*/
enum ProcessSelector
{
ANY_PROCESS = 0x0,
MAIN_PROCESS_ONLY = 0x1,
CONTENT_PROCESS_ONLY = 0x2,
/**
* By default, modules are not loaded in the GPU process, even if
* ANY_PROCESS is specified. This flag enables a module in the
* GPU process.
*/
ALLOW_IN_GPU_PROCESS = 0x4
};
/**
* The constructor callback is an implementation detail of the default binary
* loader and may be null.
*/
struct CIDEntry
{
const nsCID* cid;
bool service;
GetFactoryProcPtr getFactoryProc;
ConstructorProcPtr constructorProc;
ProcessSelector processSelector;
};
struct ContractIDEntry
{
const char* contractid;
nsID const* cid;
ProcessSelector processSelector;
};
struct CategoryEntry
{
const char* category;
const char* entry;
const char* value;
};
/**
* Binary compatibility check, should be kModuleVersion.
*/
unsigned int mVersion;
/**
* An array of CIDs (class IDs) implemented by this module. The final entry
* should be { nullptr }.
*/
const CIDEntry* mCIDs;
/**
* An array of mappings from contractid to CID. The final entry should
* be { nullptr }.
*/
const ContractIDEntry* mContractIDs;
/**
* An array of category manager entries. The final entry should be
* { nullptr }.
*/
const CategoryEntry* mCategoryEntries;
/**
* When the component manager tries to get the factory for a CID, it first
* checks for this module-level getfactory callback. If this function is
* not implemented, it checks the CIDEntry getfactory callback. If that is
* also nullptr, a generic factory is generated using the CIDEntry
* constructor callback which must be non-nullptr.
*/
GetFactoryProcPtr getFactoryProc;
/**
* Optional Function which are called when this module is loaded and
* at shutdown. These are not C++ constructor/destructors to avoid
* calling them too early in startup or too late in shutdown.
*/
LoadFuncPtr loadProc;
UnloadFuncPtr unloadProc;
/**
* Optional flags which control whether the module loads on a process-type
* basis.
*/
ProcessSelector selector;
};
} // namespace mozilla
#if defined(MOZILLA_INTERNAL_API)
# define NSMODULE_NAME(_name) _name##_NSModule
# if defined(_MSC_VER)
# pragma section(".kPStaticModules$M", read)
# pragma comment(linker, "/merge:.kPStaticModules=.rdata")
# define NSMODULE_SECTION __declspec(allocate(".kPStaticModules$M"), dllexport)
# elif defined(__GNUC__)
# if defined(__ELF__)
# define NSMODULE_SECTION __attribute__((section(".kPStaticModules"), visibility("default")))
# elif defined(__MACH__)
# define NSMODULE_SECTION __attribute__((section("__DATA, .kPStaticModules"), visibility("default")))
# elif defined (_WIN32)
# define NSMODULE_SECTION __attribute__((section(".kPStaticModules"), dllexport))
# endif
# endif
# if !defined(NSMODULE_SECTION)
# error Do not know how to define sections.
# endif
# define NSMODULE_DEFN(_name) extern NSMODULE_SECTION mozilla::Module const *const NSMODULE_NAME(_name)
#else
# define NSMODULE_NAME(_name) NSModule
# define NSMODULE_DEFN(_name) extern "C" NS_EXPORT mozilla::Module const *const NSModule
#endif
#endif // mozilla_Module_h
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