Xerces-C++
3.1.2
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Utilities that must be implemented in a platform-specific way. More...
Static Public Member Functions | |
static XMLSize_t | alignPointerForNewBlockAllocation (XMLSize_t ptrSize) |
Aligns the specified pointer per platform block allocation requirements. More... | |
Initialization and Panic methods | |
static void | Initialize (const char *const locale=XMLUni::fgXercescDefaultLocale, const char *const nlsHome=0, PanicHandler *const panicHandler=0, MemoryManager *const memoryManager=0) |
Perform per-process parser initialization. More... | |
static void | Initialize (XMLSize_t initialDOMHeapAllocSize, XMLSize_t maxDOMHeapAllocSize, XMLSize_t maxDOMSubAllocationSize, const char *const locale=XMLUni::fgXercescDefaultLocale, const char *const nlsHome=0, PanicHandler *const panicHandler=0, MemoryManager *const memoryManager=0) |
Perform per-process parser initialization. More... | |
static void | Terminate () |
Perform per-process parser termination. More... | |
static void | panic (const PanicHandler::PanicReasons reason) |
The panic mechanism. More... | |
File Methods | |
static XMLFileMgr * | makeFileMgr (MemoryManager *const manager) |
Make a new file object appropriate for the platform. More... | |
static XMLFilePos | curFilePos (FileHandle theFile, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Get the current file position. More... | |
static void | closeFile (FileHandle theFile, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Closes the file handle. More... | |
static XMLFilePos | fileSize (FileHandle theFile, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Returns the file size. More... | |
static FileHandle | openFile (const char *const fileName, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Opens the file. More... | |
static FileHandle | openFile (const XMLCh *const fileName, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Opens a named file. More... | |
static FileHandle | openFileToWrite (const char *const fileName, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Open a named file to write. More... | |
static FileHandle | openFileToWrite (const XMLCh *const fileName, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Open a named file to write. More... | |
static FileHandle | openStdInHandle (MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Opens the standard input as a file. More... | |
static XMLSize_t | readFileBuffer (FileHandle theFile, const XMLSize_t toRead, XMLByte *const toFill, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Reads the file buffer. More... | |
static void | writeBufferToFile (FileHandle const theFile, XMLSize_t toWrite, const XMLByte *const toFlush, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Writes the buffer to the file. More... | |
static void | resetFile (FileHandle theFile, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Resets the file handle. More... | |
File System Methods | |
static XMLCh * | getFullPath (const XMLCh *const srcPath, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Gets the full path from a relative path. More... | |
static XMLCh * | getCurrentDirectory (MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Gets the current working directory. More... | |
static bool | isAnySlash (XMLCh c) |
Check if a character is a slash. More... | |
static void | removeDotSlash (XMLCh *const srcPath, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Remove occurrences of the pair of dot slash. More... | |
static void | removeDotDotSlash (XMLCh *const srcPath, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Remove occurrences of the dot dot slash. More... | |
static bool | isRelative (const XMLCh *const toCheck, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Determines if a path is relative or absolute. More... | |
static XMLCh * | weavePaths (const XMLCh *const basePath, const XMLCh *const relativePath, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Utility to join two paths. More... | |
Timing Methods | |
static unsigned long | getCurrentMillis () |
Gets the system time in milliseconds. More... | |
Mutex Methods | |
static XMLMutexMgr * | makeMutexMgr (MemoryManager *const manager) |
Factory method for creating MutexMgr object. More... | |
static void | closeMutex (void *const mtxHandle, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Closes a mutex handle. More... | |
static void | lockMutex (void *const mtxHandle) |
Locks a mutex handle. More... | |
static void * | makeMutex (MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
Make a new mutex. More... | |
static void | unlockMutex (void *const mtxHandle) |
Unlocks a mutex. More... | |
External Message Support | |
static XMLMsgLoader * | loadMsgSet (const XMLCh *const msgDomain) |
Loads the message set from among the available domains. More... | |
NEL Character Handling | |
static void | recognizeNEL (bool state, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager) |
This function enables the recognition of NEL(0x85) char and LSEP (0x2028) as newline chars which is disabled by default. More... | |
static bool | isNELRecognized () |
Return the value of fgNEL flag. More... | |
Strict IANA Encoding Checking | |
static void | strictIANAEncoding (const bool state) |
This function enables/disables strict IANA encoding names checking. More... | |
static bool | isStrictIANAEncoding () |
Returns whether a strict IANA encoding name check is enabled or disabled. More... | |
Static Public Attributes | |
Public Static Data | |
static XMLNetAccessor * | fgNetAccessor |
The network accessor. More... | |
static XMLTransService * | fgTransService |
The transcoding service. More... | |
static PanicHandler * | fgUserPanicHandler |
The Panic Handler. More... | |
static PanicHandler * | fgDefaultPanicHandler |
The Panic Handler. More... | |
static MemoryManager * | fgMemoryManager |
The configurable memory manager. More... | |
static XMLFileMgr * | fgFileMgr |
static XMLMutexMgr * | fgMutexMgr |
static XMLMutex * | fgAtomicMutex |
Global mutex for fast or infrequent operations. More... | |
static bool | fgXMLChBigEndian |
static bool | fgSSE2ok |
Utilities that must be implemented in a platform-specific way.
This class contains methods that must be implemented in a platform specific manner. The actual implementations of these methods are available in the per-platform files inside src/util/Platforms
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Aligns the specified pointer per platform block allocation requirements.
The results of this function may be altered by defining XML_PLATFORM_NEW_BLOCK_ALIGNMENT.
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Closes the file handle.
This must be implemented by the per-platform driver, which should use local file services to close the passed file handle, and to destroy the passed file handle and any allocated data or system resources it contains.
theFile | The file handle to close |
manager | The MemoryManager to use to allocate objects |
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Closes a mutex handle.
Each per-platform driver must implement this. Only it knows what the actual content of the passed mutex handle is.
mtxHandle | The mutex handle that you want to close |
manager | The MemoryManager used to allocate the object |
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Get the current file position.
This must be implemented by the per-platform driver, which should use local file services to determine the current position within the passed file.
Since the file API provided here only reads, if the host platform supports separate read/write positions, only the read position is of any interest, and hence should be the one returned.
theFile | The file handle |
manager | The MemoryManager to use to allocate objects |
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Returns the file size.
This must be implemented by the per-platform driver, which should use local file services to determine the current size of the file represented by the passed handle.
theFile | The file handle whose size you want |
manager | The MemoryManager to use to allocate objects |
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Gets the current working directory.
This must be implemented by the per-platform driver. It returns the current working directory is.
manager | The MemoryManager to use to allocate objects |
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Gets the system time in milliseconds.
This must be implemented by the per-platform driver, which should use local services to return the current value of a running millisecond timer. Note that the value returned is only as accurate as the millisecond time of the underlying host system.
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Gets the full path from a relative path.
This must be implemented by the per-platform driver. It should complete a relative path using the 'current directory', or whatever the local equivalent of a current directory is. If the passed source path is actually fully qualified, then a straight copy of it will be returned.
srcPath | The path of the file for which you want the full path |
manager | Pointer to the memory manager to be used to allocate objects. |
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Perform per-process parser initialization.
Initialization must be called first in any client code.
locale | The locale to use for messages. |
The locale is set iff the Initialize() is invoked for the very first time, to ensure that each and every message loader, in the process space, share the same locale.
All subsequent invocations of Initialize(), with a different locale, have no effect on the message loaders, either instantiated, or to be instantiated.
To set to a different locale, client application needs to Terminate() (or multiple Terminate() in the case where multiple Initialize() have been invoked before), followed by Initialize(new_locale).
The default locale is "en_US".
nlsHome | User specified location where MsgLoader retrieves error message files. the discussion above with regard to locale, applies to nlsHome as well. |
panicHandler | Application's panic handler, application owns this handler. Application shall make sure that the plugged panic handler persists through the call to XMLPlatformUtils::Terminate(). |
memoryManager | Plugged-in memory manager which is owned by the application. Applications must make sure that the plugged-in memory manager persist through the call to XMLPlatformUtils::Terminate() |
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Perform per-process parser initialization.
Initialization must be called first in any client code.
initialDOMHeapAllocSize | The size of the first memory block allocated by the DOMDocument heap. Note that changing this parameter may result in poor performance and/or excessive memory usage. For the default value refer to dom/impl/DOMDocumentImpl.cpp. |
maxDOMHeapAllocSize | The maximum size of the memory block allocated by the DOMDocument heap. As the document grows, the allocated by the heap memory blocks grow from initialDOMHeapAllocSize to maxDOMHeapAllocSize. Note that changing this parameter may result in poor performance and/or excessive memory usage. For the default value refer to dom/impl/DOMDocumentImpl.cpp. |
maxDOMSubAllocationSize | The maximum size of the memory block requested that is handled by the DOMDocument heap. A request for a larger block is handled directly by the memory manager. Note that changing this parameter may result in poor performance and/or excessive memory usage. For the default value refer to dom/impl/DOMDocumentImpl.cpp. |
locale | The locale to use for messages. |
The locale is set iff the Initialize() is invoked for the very first time, to ensure that each and every message loader, in the process space, share the same locale.
All subsequent invocations of Initialize(), with a different locale, have no effect on the message loaders, either instantiated, or to be instantiated.
To set to a different locale, client application needs to Terminate() (or multiple Terminate() in the case where multiple Initialize() have been invoked before), followed by Initialize(new_locale).
The default locale is "en_US".
nlsHome | User specified location where MsgLoader retrieves error message files. the discussion above with regard to locale, applies to nlsHome as well. |
panicHandler | Application's panic handler, application owns this handler. Application shall make sure that the plugged panic handler persists through the call to XMLPlatformUtils::Terminate(). |
memoryManager | Plugged-in memory manager which is owned by the application. Applications must make sure that the plugged-in memory manager persist through the call to XMLPlatformUtils::Terminate() |
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Check if a character is a slash.
This must be implemented by the per-platform driver.
c | the character to be examined |
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Return the value of fgNEL flag.
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Determines if a path is relative or absolute.
This must be implemented by the per-platform driver, which should determine whether the passed path is relative or not. The concept of relative and absolute might be... well relative on different platforms. But, as long as the determination is made consistently and in coordination with the weavePaths() method, it should work for any platform.
toCheck | The file name which you want to check |
manager | The MemoryManager to use to allocate objects |
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Returns whether a strict IANA encoding name check is enabled or disabled.
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Loads the message set from among the available domains.
The returned object must be dynamically allocated and the caller becomes responsible for cleaning it up.
msgDomain | The message domain which you want to load |
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Locks a mutex handle.
Each per-platform driver must implement this. Only it knows what the actual content of the passed mutex handle is.
mtxHandle | The mutex handle that you want to lock |
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Make a new file object appropriate for the platform.
manager | The MemoryManager to use to allocate objects |
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Make a new mutex.
Each per-platform driver must implement this. Only it knows what the actual content of the passed mutex handle is. The returned handle pointer will be eventually passed to closeMutex() which is also implemented by the platform driver.
manager | The MemoryManager to use to allocate objects |
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Factory method for creating MutexMgr object.
This factory method creates a mutexmgr that will be used on the particular platform.
manager | The MemoryManager to use to allocate objects |
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Opens the file.
This must be implemented by the per-platform driver, which should use local file services to open passed file. If it fails, a null handle pointer should be returned.
fileName | The string containing the name of the file |
manager | The MemoryManager to use to allocate objects |
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Opens a named file.
This must be implemented by the per-platform driver, which should use local file services to open the passed file. If it fails, a null handle pointer should be returned.
fileName | The string containing the name of the file |
manager | The MemoryManager to use to allocate objects |
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Open a named file to write.
This must be implemented by the per-platform driver, which should use local file services to open passed file. If it fails, a null handle pointer should be returned.
fileName | The string containing the name of the file |
manager | The MemoryManager to use to allocate objects |
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Open a named file to write.
This must be implemented by the per-platform driver, which should use local file services to open the passed file. If it fails, a null handle pointer should be returned.
fileName | The string containing the name of the file |
manager | The MemoryManager to use to allocate objects |
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Opens the standard input as a file.
This must be implemented by the per-platform driver, which should use local file services to open a handle to the standard input. It should be a copy of the standard input handle, since it will be closed later!
manager | The MemoryManager to use to allocate objects |
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The panic mechanism.
If, during initialization, we cannot even get far enough along to get transcoding up or get message loading working, we call this method.
Each platform can implement it however they want. This method will delegate the panic handling to a user specified panic handler or in the absence of it, the default panic handler.
In case the default panic handler does not support a particular platform, the platform specific panic handling shall be implemented here
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reason | The enumeration that defines the cause of the failure |
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Reads the file buffer.
This must be implemented by the per-platform driver, which should use local file services to read up to 'toRead' bytes of data from the passed file, and return those bytes in the 'toFill' buffer. It is not an error not to read the requested number of bytes. When the end of file is reached, zero should be returned.
theFile | The file handle to be read from. |
toRead | The maximum number of byte to read from the current position |
toFill | The byte buffer to fill |
manager | The MemoryManager to use to allocate objects |
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This function enables the recognition of NEL(0x85) char and LSEP (0x2028) as newline chars which is disabled by default.
It is only called once per process. Once it is set, any subsequent calls will result in exception being thrown.
Note: 1. Turning this option on will make the parser non compliant to XML 1.0.
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Remove occurrences of the dot dot slash.
To remove the sequence, slash dot dot slash and its preceding path segment if and only if the preceding path segment is not slash dot dot slash.
srcPath | The path for which you want to remove the slash dot dot slash sequence and its preceding path segment. |
manager | The MemoryManager to use to allocate objects |
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Remove occurrences of the pair of dot slash.
To remove the sequence, dot slash if it is part of the sequence, slash dot slash.
srcPath | The path for which you want to remove the dot slash sequence. |
manager | The MemoryManager to use to allocate objects |
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Resets the file handle.
This must be implemented by the per-platform driver which will use local file services to reset the file position to the start of the the file.
theFile | The file handle that you want to reset |
manager | The MemoryManager to use to allocate objects |
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This function enables/disables strict IANA encoding names checking.
The strict checking is disabled by default.
state | If true, a strict IANA encoding name check is performed, otherwise, no checking. |
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Perform per-process parser termination.
The termination call is currently optional, to aid those dynamically loading the parser to clean up before exit, or to avoid spurious reports from leak detectors.
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Unlocks a mutex.
Each per-platform driver must implement this. Only it knows what the actual content of the passed mutex handle is.
Note that, since the underlying system synchronization services are used, Xerces cannot guarantee that lock/unlock operations are correctly enforced on a per-thread basis or that incorrect nesting of lock/unlock operations will be caught.
mtxHandle | The mutex handle that you want to unlock |
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Utility to join two paths.
This must be implemented by the per-platform driver, and should weave the relative path part together with the base part and return a new path that represents this combination.
If the relative part turns out to be fully qualified, it will be returned as is. If it is not, then it will be woven onto the passed base path, by removing one path component for each leading "../" (or whatever is the equivalent in the local system) in the relative path.
basePath | The string containing the base path |
relativePath | The string containing the relative path |
manager | The MemoryManager to use to allocate objects |
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Writes the buffer to the file.
This must be implemented by the per-platform driver, which should use local file services to write up to 'toWrite' bytes of data to the passed file. Unless exception raised by local file services, 'toWrite' bytes of data is to be written to the passed file.
theFile | The file handle to be written to. |
toWrite | The maximum number of byte to write from the current position |
toFlush | The byte buffer to flush |
manager | The MemoryManager to use to allocate objects |
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Global mutex for fast or infrequent operations.
Use this mutex only for fast (e.g., increment an integer, check flag, etc.) or infrequent (e.g., once-off initialization) operations.
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The Panic Handler.
This is the default panic handler.
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The configurable memory manager.
This is the pluggable memory manager. If it is not provided by an application, a default implementation is used.
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The network accessor.
This is provided by the per-platform driver, so each platform can choose what actual implementation it wants to use. The object must be dynamically allocated.
Note that you may optionally, if your platform driver does not install a network accessor, set it manually from your client code after calling Initialize(). This works because this object is not required during initialization, and only comes into play during actual XML parsing.
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The transcoding service.
This is provided by the per platform driver, so each platform can choose what implementation it wants to use. When the platform independent initialization code needs to get a transcoding service object, it will call makeTransService()
to ask the per-platform code to create one. Only one transcoding service object is requested per-process, so it is shared and synchronized among parser instances within that process.
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The Panic Handler.
This is the application provided panic handler.
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