diff options
Diffstat (limited to 'protocols/JabberG/src/MString.cpp')
| -rw-r--r-- | protocols/JabberG/src/MString.cpp | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/protocols/JabberG/src/MString.cpp b/protocols/JabberG/src/MString.cpp new file mode 100644 index 0000000000..773871d1a5 --- /dev/null +++ b/protocols/JabberG/src/MString.cpp @@ -0,0 +1,201 @@ +#include "jabber.h"
+#include "MString.h"
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// CMBaseString
+
+CNilMStringData CMBaseString::m_nil;
+
+CMStringData* CMBaseString::Allocate( int nChars, int nCharSize )
+{
+ CMStringData* pData;
+ nChars++; // nil char
+ size_t nDataBytes = nCharSize * nChars;
+ size_t nTotalSize = nDataBytes + sizeof(CMStringData);
+
+ pData = static_cast<CMStringData*>(malloc(nTotalSize));
+ if (pData == NULL)
+ return NULL;
+
+ pData->nRefs = 1;
+ pData->nAllocLength = nChars - 1;
+ pData->nDataLength = 0;
+ return pData;
+}
+
+void CMBaseString::Free(CMStringData* pData)
+{
+ free(pData);
+}
+
+CMStringData* CMBaseString::Realloc(CMStringData* pData, int nChars, int nCharSize)
+{
+ CMStringData* pNewData;
+ nChars++; // nil char
+ ULONG nDataBytes = nCharSize * nChars;
+ ULONG nTotalSize = nDataBytes + sizeof(CMStringData);
+
+ pNewData = static_cast<CMStringData*>(realloc(pData, nTotalSize));
+ if (pNewData == NULL)
+ return NULL;
+
+ pNewData->nAllocLength = nChars - 1;
+ return pNewData;
+}
+
+CMStringData* CMBaseString::GetNilString()
+{
+ m_nil.AddRef();
+ return &m_nil;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// CMStringData
+
+void* CMStringData::data()
+{
+ return (this + 1);
+}
+
+void CMStringData::AddRef()
+{
+ InterlockedIncrement(&nRefs);
+}
+
+bool CMStringData::IsLocked() const
+{
+ return nRefs < 0;
+}
+
+bool CMStringData::IsShared() const
+{
+ return (nRefs > 1);
+}
+
+void CMStringData::Lock()
+{
+ nRefs--; // Locked buffers can't be shared, so no interlocked operation necessary
+ if ( nRefs == 0 )
+ nRefs = -1;
+}
+
+void CMStringData::Release()
+{
+ if (InterlockedDecrement(&nRefs) <= 0)
+ CMBaseString::Free(this);
+}
+
+void CMStringData::Unlock()
+{
+ if (IsLocked())
+ {
+ nRefs++; // Locked buffers can't be shared, so no interlocked operation necessary
+ if (nRefs == 0)
+ nRefs = 1;
+ }
+}
+
+CNilMStringData::CNilMStringData()
+{
+ nRefs = 2; // Never gets freed
+ nDataLength = 0;
+ nAllocLength = 0;
+ achNil[0] = 0;
+ achNil[1] = 0;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// ChTraitsCRT<wchar_t>
+
+#if _MSC_VER < 1400
+static HINSTANCE hCrt = NULL;
+
+typedef int ( __cdecl *_vscprintf_func )( LPCSTR pszFormat, va_list args );
+static _vscprintf_func _vscprintf_ptr = NULL;
+
+typedef int ( __cdecl *_vscwprintf_func )( LPCWSTR pszFormat, va_list args );
+static _vscwprintf_func _vscwprintf_ptr = NULL;
+
+typedef int ( __cdecl *_vsnprintf_func )( char*, size_t, const char*, va_list );
+static _vsnprintf_func _vsnprintf_ptr = NULL;
+
+typedef int ( __cdecl *_vsnwprintf_func )( wchar_t *, size_t, const wchar_t *, va_list );
+static _vsnwprintf_func _vsnwprintf_ptr = NULL;
+
+typedef int ( __cdecl *vswprintf_func )( wchar_t *, size_t, const wchar_t *, va_list );
+static vswprintf_func vswprintf_ptr = NULL;
+
+typedef int ( __cdecl *vsprintf_func )( char*, size_t, const char*, va_list );
+static vsprintf_func vsprintf_ptr = NULL;
+
+static void checkCrt( void )
+{
+ if ( hCrt == NULL ) {
+ hCrt = GetModuleHandleA( "msvcrt.dll" );
+ _vscprintf_ptr = (_vscprintf_func)GetProcAddress( hCrt, "_vscprintf" );
+ _vscwprintf_ptr = (_vscwprintf_func)GetProcAddress( hCrt, "_vscwprintf" );
+ _vsnprintf_ptr = (_vsnprintf_func)GetProcAddress( hCrt, "_vsnprintf" );
+ _vsnwprintf_ptr = (_vsnwprintf_func)GetProcAddress( hCrt, "_vsnwprintf" );
+ vswprintf_ptr = (vswprintf_func)GetProcAddress( hCrt, "vswprintf" );
+ vsprintf_ptr = (vsprintf_func)GetProcAddress( hCrt, "vsprintf" );
+} }
+#endif
+
+int __stdcall ChTraitsCRT<wchar_t>::GetFormattedLength( LPCWSTR pszFormat, va_list args )
+{
+ #if _MSC_VER < 1400
+ checkCrt();
+
+ if ( _vscwprintf_ptr != NULL )
+ return _vscwprintf_ptr( pszFormat, args );
+
+ WCHAR buf[ 4000 ];
+ return vswprintf_ptr( buf, SIZEOF(buf), pszFormat, args );
+ #else
+ return _vscwprintf( pszFormat, args );
+ #endif
+}
+
+int __stdcall ChTraitsCRT<wchar_t>::Format( LPWSTR pszBuffer, size_t nLength, LPCWSTR pszFormat, va_list args)
+{
+ #if _MSC_VER < 1400
+ checkCrt();
+
+ if ( _vsnwprintf_ptr != NULL )
+ return _vsnwprintf_ptr( pszBuffer, nLength, pszFormat, args );
+
+ return vswprintf_ptr( pszBuffer, nLength, pszFormat, args );
+ #else
+ return _vsnwprintf( pszBuffer, nLength, pszFormat, args );
+ #endif
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////
+// ChTraitsCRT<char>
+
+int __stdcall ChTraitsCRT<char>::GetFormattedLength( LPCSTR pszFormat, va_list args )
+{
+ #if _MSC_VER < 1400
+ checkCrt();
+
+ if ( _vscprintf_ptr != NULL )
+ return _vscprintf_ptr( pszFormat, args );
+
+ char buf[4000];
+ return vsprintf_ptr( buf, sizeof(buf), pszFormat, args );
+ #else
+ return _vscprintf( pszFormat, args );
+ #endif
+}
+
+int __stdcall ChTraitsCRT<char>::Format( LPSTR pszBuffer, size_t nlength, LPCSTR pszFormat, va_list args )
+{
+ #if _MSC_VER < 1400
+ checkCrt();
+
+ return _vsnprintf( pszBuffer, nlength, pszFormat, args );
+ #else
+ return vsprintf_s( pszBuffer, nlength, pszFormat, args );
+ #endif
+}
+
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