Xerces-C++: PlatformUtils.hpp Source File

Xerces-C++ 3.3.0

PlatformUtils.hpp
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10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18/*
19 * $Id$
20 */
21
22#if !defined(XERCESC_INCLUDE_GUARD_PLATFORMUTILS_HPP)
23#define XERCESC_INCLUDE_GUARD_PLATFORMUTILS_HPP
24
25#include <xercesc/util/XercesDefs.hpp>
26#include <xercesc/util/XMLException.hpp>
27#include <xercesc/util/PanicHandler.hpp>
28
29#include <xercesc/util/XMLFileMgr.hpp>
30#include <xercesc/util/XMLMutexMgr.hpp>
31
32 XERCES_CPP_NAMESPACE_BEGIN
33
34class XMLMsgLoader;
35class XMLNetAccessor;
36class XMLTransService;
37class MemoryManager;
38class XMLMutex;
39
40//
41// For internal use only
42//
43// This class provides a simple abstract API via which lazily evaluated
44// data can be cleaned up.
45//
46 class XMLUTIL_EXPORT XMLDeleter
47{
48public :
49 virtual ~XMLDeleter();
50
51protected :
52 XMLDeleter();
53
54private :
55 XMLDeleter(const XMLDeleter&);
56 XMLDeleter& operator=(const XMLDeleter&);
57};
58
59
68 class XMLUTIL_EXPORT XMLPlatformUtils
69{
70public :
71
74
87 static XMLNetAccessor* fgNetAccessor;
88
99 static XMLTransService* fgTransService;
100#ifdef OS390
101 static XMLTransService* fgTransService2;
102#endif
103
108 static PanicHandler* fgUserPanicHandler;
109
114 static PanicHandler* fgDefaultPanicHandler;
115
121 static MemoryManager* fgMemoryManager;
122
123 static XMLFileMgr* fgFileMgr;
124 static XMLMutexMgr* fgMutexMgr;
125
132 static XMLMutex* fgAtomicMutex;
133
134 static bool fgXMLChBigEndian;
135 static bool fgSSE2ok;
137
138
141
173 static void Initialize(const char* const locale = XMLUni::fgXercescDefaultLocale
174 , const char* const nlsHome = 0
175 , PanicHandler* const panicHandler = 0
176 , MemoryManager* const memoryManager = 0);
177
227 static void Initialize(XMLSize_t initialDOMHeapAllocSize
228 , XMLSize_t maxDOMHeapAllocSize
229 , XMLSize_t maxDOMSubAllocationSize
230 , const char* const locale = XMLUni::fgXercescDefaultLocale
231 , const char* const nlsHome = 0
232 , PanicHandler* const panicHandler = 0
233 , MemoryManager* const memoryManager = 0);
234
241 static void Terminate();
242
259 static void panic
260 (
261 const PanicHandler::PanicReasons reason
262 );
263
265
268
273 static XMLFileMgr* makeFileMgr(MemoryManager* const manager);
274
288 static XMLFilePos curFilePos(FileHandle theFile
289 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
290
301 static void closeFile(FileHandle theFile
302 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
303
314 static XMLFilePos fileSize(FileHandle theFile
315 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
316
327 static FileHandle openFile(const char* const fileName
328 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
329
340 static FileHandle openFile(const XMLCh* const fileName
341 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
342
353 static FileHandle openFileToWrite(const char* const fileName
354 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
355
366 static FileHandle openFileToWrite(const XMLCh* const fileName
367 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
368
379 static FileHandle openStdInHandle(MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
380
397 static XMLSize_t readFileBuffer
398 (
399 FileHandle theFile
400 , const XMLSize_t toRead
401 , XMLByte* const toFill
402 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
403 );
404
419 static void writeBufferToFile
420 (
421 FileHandle const theFile
422 , XMLSize_t toWrite
423 , const XMLByte* const toFlush
424 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
425 );
426
436 static void resetFile(FileHandle theFile
437 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
438
440
441
465 static XMLCh* getFullPath
466 (
467 const XMLCh* const srcPath
468 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
469 );
470
484 static XMLCh* getCurrentDirectory
485 (
486 MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
487 );
488
498 static inline bool isAnySlash(XMLCh c);
499
509 static void removeDotSlash(XMLCh* const srcPath
510 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
511
522 static void removeDotDotSlash(XMLCh* const srcPath
523 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
524
538 static bool isRelative(const XMLCh* const toCheck
539 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
540 );
541
561 static XMLCh* weavePaths
562 (
563 const XMLCh* const basePath
564 , const XMLCh* const relativePath
565 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
566 );
568
571
581 static unsigned long getCurrentMillis();
583
586
594 static XMLMutexMgr* makeMutexMgr(MemoryManager* const manager);
595
604 static void closeMutex(void* const mtxHandle, MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
605
613 static void lockMutex(void* const mtxHandle);
614
624 static void* makeMutex(MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
625
638 static void unlockMutex(void* const mtxHandle);
639
641
642
645
653 static XMLMsgLoader* loadMsgSet(const XMLCh* const msgDomain);
654
656
657
671 static void recognizeNEL(bool state
672 , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
673
677 static bool isNELRecognized();
679
691 static void strictIANAEncoding(const bool state);
692
697 static bool isStrictIANAEncoding();
699
707 static inline XMLSize_t alignPointerForNewBlockAllocation(XMLSize_t ptrSize);
708
709private :
710 // -----------------------------------------------------------------------
711 // Unimplemented constructors and operators
712 // -----------------------------------------------------------------------
713 XMLPlatformUtils();
714
717
723 static XMLMsgLoader* loadAMsgSet(const XMLCh* const msgDomain);
724
734 static XMLNetAccessor* makeNetAccessor();
735
746 static XMLTransService* makeTransService();
747
755 static int searchSlashDotDotSlash(XMLCh* const srcPath);
756
758
761
768 static bool fgMemMgrAdopted;
769
771};
772
773
774 MakeXMLException(XMLPlatformUtilsException, XMLUTIL_EXPORT)
775
776
777// ---------------------------------------------------------------------------
778// XMLPlatformUtils: alignPointerForNewBlockAllocation
779// ---------------------------------------------------------------------------
780// Calculate alignment required by platform for a new
781// block allocation. We use this in our custom allocators
782// to ensure that returned blocks are properly aligned.
783// Note that, although this will take a pointer and return the position
784// at which it should be placed for correct alignment, in our code
785// we normally use XMLSize_t parameters to discover what the alignment
786// of header blocks should be. Thus, if this is to be
787// used for the former purpose, to make compilers happy
788// some casting will be necessary - neilg.
789//
790// Note: XML_PLATFORM_NEW_BLOCK_ALIGNMENT may be specified on a
791// per-architecture basis to dictate the alignment requirements
792// of the architecture. In the absense of this specification,
793// this routine guesses at the correct alignment value.
794//
795// A XML_PLATFORM_NEW_BLOCK_ALIGNMENT value of zero is illegal.
796// If a platform requires absolutely no alignment, a value
797// of 1 should be specified ("align pointers on 1 byte boundaries").
798//
799inline XMLSize_t
800 XMLPlatformUtils::alignPointerForNewBlockAllocation(XMLSize_t ptrSize)
801{
802 // Macro XML_PLATFORM_NEW_BLOCK_ALIGNMENT may be defined
803 // as needed to dictate alignment requirements on a
804 // per-architecture basis. In the absense of that we
805 // take an educated guess.
806#ifdef XML_PLATFORM_NEW_BLOCK_ALIGNMENT
807 const XMLSize_t alignment = XML_PLATFORM_NEW_BLOCK_ALIGNMENT;
808#else
809 const XMLSize_t alignment = (sizeof(void*) >= sizeof(double)) ? sizeof(void*) : sizeof(double);
810#endif
811
812 // Calculate current alignment of pointer
813 XMLSize_t current = ptrSize % alignment;
814
815 // Adjust pointer alignment as needed
816 return (current == 0)
817 ? ptrSize
818 : (ptrSize + alignment - current);
819}
820
821
822
823// ---------------------------------------------------------------------------
824// XMLDeleter: Public Destructor
825// ---------------------------------------------------------------------------
826 inline XMLDeleter::~XMLDeleter()
827{
828}
829
830// ---------------------------------------------------------------------------
831// XMLDeleter: Hidden constructors and operators
832// ---------------------------------------------------------------------------
833 inline XMLDeleter::XMLDeleter()
834{
835}
836
837 XERCES_CPP_NAMESPACE_END
838
839#endif
PanicHandler.hpp
XMLException.hpp
MakeXMLException
#define MakeXMLException(theType, expKeyword)
Definition XMLException.hpp:178
XMLFileMgr.hpp
FileHandle
XERCES_CPP_NAMESPACE_BEGIN typedef void * FileHandle
Definition XMLFileMgr.hpp:30
XMLMutexMgr.hpp
XercesDefs.hpp
XERCES_CPP_NAMESPACE_BEGIN
#define XERCES_CPP_NAMESPACE_BEGIN
Definition XercesDefs.hpp:112
XMLByte
unsigned char XMLByte
Definition XercesDefs.hpp:65
XMLUTIL_EXPORT
#define XMLUTIL_EXPORT
Definition XercesDefs.hpp:162
XERCES_CPP_NAMESPACE_END
#define XERCES_CPP_NAMESPACE_END
Definition XercesDefs.hpp:113
XMLSize_t
size_t XMLSize_t
Definition Xerces_autoconf_config.hpp:112
XMLCh
char16_t XMLCh
Definition Xerces_autoconf_config.hpp:120
XMLFilePos
XMLUInt64 XMLFilePos
Definition Xerces_autoconf_config.hpp:139
MemoryManager
Configurable memory manager.
Definition MemoryManager.hpp:40
PanicHandler
Receive notification of panic.
Definition PanicHandler.hpp:45
PanicHandler::PanicReasons
PanicReasons
Definition PanicHandler.hpp:51
XMLDeleter
Definition PlatformUtils.hpp:47
XMLDeleter::~XMLDeleter
virtual ~XMLDeleter()
Definition PlatformUtils.hpp:826
XMLDeleter::XMLDeleter
XMLDeleter()
Definition PlatformUtils.hpp:833
XMLFileMgr
Definition XMLFileMgr.hpp:35
XMLMutexMgr
Definition XMLMutexMgr.hpp:34
XMLNetAccessor
Definition XMLNetAccessor.hpp:96
XMLPlatformUtils
Utilities that must be implemented in a platform-specific way.
Definition PlatformUtils.hpp:69
XMLPlatformUtils::loadMsgSet
static XMLMsgLoader * loadMsgSet(const XMLCh *const msgDomain)
Loads the message set from among the available domains.
XMLPlatformUtils::fgFileMgr
static XMLFileMgr * fgFileMgr
Definition PlatformUtils.hpp:123
XMLPlatformUtils::lockMutex
static void lockMutex(void *const mtxHandle)
Locks a mutex handle.
XMLPlatformUtils::removeDotDotSlash
static void removeDotDotSlash(XMLCh *const srcPath, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Remove occurrences of the dot dot slash.
XMLPlatformUtils::getCurrentDirectory
static XMLCh * getCurrentDirectory(MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Gets the current working directory.
XMLPlatformUtils::readFileBuffer
static XMLSize_t readFileBuffer(FileHandle theFile, const XMLSize_t toRead, XMLByte *const toFill, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Reads the file buffer.
XMLPlatformUtils::fgMutexMgr
static XMLMutexMgr * fgMutexMgr
Definition PlatformUtils.hpp:124
XMLPlatformUtils::curFilePos
static XMLFilePos curFilePos(FileHandle theFile, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Get the current file position.
XMLPlatformUtils::makeMutexMgr
static XMLMutexMgr * makeMutexMgr(MemoryManager *const manager)
Factory method for creating MutexMgr object.
XMLPlatformUtils::Initialize
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.
XMLPlatformUtils::isAnySlash
static bool isAnySlash(XMLCh c)
Check if a character is a slash.
XMLPlatformUtils::resetFile
static void resetFile(FileHandle theFile, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Resets the file handle.
XMLPlatformUtils::closeMutex
static void closeMutex(void *const mtxHandle, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Closes a mutex handle.
XMLPlatformUtils::fgSSE2ok
static bool fgSSE2ok
Definition PlatformUtils.hpp:135
XMLPlatformUtils::isNELRecognized
static bool isNELRecognized()
Return the value of fgNEL flag.
XMLPlatformUtils::strictIANAEncoding
static void strictIANAEncoding(const bool state)
This function enables/disables strict IANA encoding names checking.
XMLPlatformUtils::getCurrentMillis
static unsigned long getCurrentMillis()
Gets the system time in milliseconds.
XMLPlatformUtils::alignPointerForNewBlockAllocation
static XMLSize_t alignPointerForNewBlockAllocation(XMLSize_t ptrSize)
Aligns the specified pointer per platform block allocation requirements.
XMLPlatformUtils::openFile
static FileHandle openFile(const XMLCh *const fileName, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Opens a named file.
XMLPlatformUtils::openFileToWrite
static FileHandle openFileToWrite(const char *const fileName, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Open a named file to write.
XMLPlatformUtils::fgXMLChBigEndian
static bool fgXMLChBigEndian
Definition PlatformUtils.hpp:134
XMLPlatformUtils::openStdInHandle
static FileHandle openStdInHandle(MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Opens the standard input as a file.
XMLPlatformUtils::fgNetAccessor
static XMLNetAccessor * fgNetAccessor
The network accessor.
Definition PlatformUtils.hpp:87
XMLPlatformUtils::writeBufferToFile
static void writeBufferToFile(FileHandle const theFile, XMLSize_t toWrite, const XMLByte *const toFlush, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Writes the buffer to the file.
XMLPlatformUtils::openFileToWrite
static FileHandle openFileToWrite(const XMLCh *const fileName, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Open a named file to write.
XMLPlatformUtils::fileSize
static XMLFilePos fileSize(FileHandle theFile, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Returns the file size.
XMLPlatformUtils::isRelative
static bool isRelative(const XMLCh *const toCheck, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Determines if a path is relative or absolute.
XMLPlatformUtils::recognizeNEL
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 d...
XMLPlatformUtils::fgMemoryManager
static MemoryManager * fgMemoryManager
The configurable memory manager.
Definition PlatformUtils.hpp:121
XMLPlatformUtils::openFile
static FileHandle openFile(const char *const fileName, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Opens the file.
XMLPlatformUtils::isStrictIANAEncoding
static bool isStrictIANAEncoding()
Returns whether a strict IANA encoding name check is enabled or disabled.
XMLPlatformUtils::closeFile
static void closeFile(FileHandle theFile, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Closes the file handle.
XMLPlatformUtils::getFullPath
static XMLCh * getFullPath(const XMLCh *const srcPath, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Gets the full path from a relative path.
XMLPlatformUtils::fgAtomicMutex
static XMLMutex * fgAtomicMutex
Global mutex for fast or infrequent operations.
Definition PlatformUtils.hpp:132
XMLPlatformUtils::Initialize
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.
XMLPlatformUtils::fgUserPanicHandler
static PanicHandler * fgUserPanicHandler
The Panic Handler.
Definition PlatformUtils.hpp:108
XMLPlatformUtils::panic
static void panic(const PanicHandler::PanicReasons reason)
The panic mechanism.
XMLPlatformUtils::weavePaths
static XMLCh * weavePaths(const XMLCh *const basePath, const XMLCh *const relativePath, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Utility to join two paths.
XMLPlatformUtils::fgTransService
static XMLTransService * fgTransService
The transcoding service.
Definition PlatformUtils.hpp:99
XMLPlatformUtils::makeFileMgr
static XMLFileMgr * makeFileMgr(MemoryManager *const manager)
Make a new file object appropriate for the platform.
XMLPlatformUtils::fgDefaultPanicHandler
static PanicHandler * fgDefaultPanicHandler
The Panic Handler.
Definition PlatformUtils.hpp:114
XMLPlatformUtils::Terminate
static void Terminate()
Perform per-process parser termination.
XMLPlatformUtils::unlockMutex
static void unlockMutex(void *const mtxHandle)
Unlocks a mutex.
XMLPlatformUtils::makeMutex
static void * makeMutex(MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Make a new mutex.
XMLPlatformUtils::removeDotSlash
static void removeDotSlash(XMLCh *const srcPath, MemoryManager *const manager=XMLPlatformUtils::fgMemoryManager)
Remove occurrences of the pair of dot slash.
XMLTransService
Definition TransService.hpp:53
XMLUni::fgXercescDefaultLocale
static const char fgXercescDefaultLocale[]
Definition XMLUni.hpp:305