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authorNoel Grandin <noel@peralex.com>2014-07-01 13:17:01 +0200
committerCaolán McNamara <caolanm@redhat.com>2014-07-04 09:04:05 +0000
commit281989007fd7dea997ed9a65f513f80b1aff67dd (patch)
treee13eeb8be3e8b3e1f36a3e9c1448d56aa0f0d3f0
parent8b499cea76577b4221fccb17703aa9e86b625e90 (diff)
Use standard library optimised routines for OUString/OString
..handling where possible. Change-Id: I0b071988ed266cc2745a8ca9705c106a05edc557 Reviewed-on: https://gerrit.libreoffice.org/10020 Reviewed-by: Caolán McNamara <caolanm@redhat.com> Tested-by: Caolán McNamara <caolanm@redhat.com>
-rw-r--r--sal/rtl/strtmpl.cxx238
1 files changed, 178 insertions, 60 deletions
diff --git a/sal/rtl/strtmpl.cxx b/sal/rtl/strtmpl.cxx
index c3d42c4d8a27..57c98e2fca0f 100644
--- a/sal/rtl/strtmpl.cxx
+++ b/sal/rtl/strtmpl.cxx
@@ -26,6 +26,7 @@
#include <limits>
#include <string.h>
+#include <wchar.h>
#include <sal/log.hxx>
#include <rtl/character.hxx>
#include <boost/static_assert.hpp>
@@ -45,18 +46,12 @@ inline void rtl_str_ImplCopy( IMPL_RTL_STRCODE* pDest,
}
*/
-#define rtl_str_ImplCopy( _pDest, _pSrc, _nCount ) \
-{ \
- IMPL_RTL_STRCODE* __mm_pDest = _pDest; \
- const IMPL_RTL_STRCODE* __mm_pSrc = _pSrc; \
- sal_Int32 __mm_nCount = _nCount; \
- while ( __mm_nCount > 0 ) \
- { \
- *__mm_pDest = *__mm_pSrc; \
- __mm_pDest++; \
- __mm_pSrc++; \
- __mm_nCount--; \
- } \
+static inline void rtl_str_ImplCopy( IMPL_RTL_STRCODE* _pDest,
+ const IMPL_RTL_STRCODE* _pSrc,
+ sal_Int32 _nCount )
+{
+ // take advantage of builtin optimisations
+ memcpy( _pDest, _pSrc, _nCount * sizeof(IMPL_RTL_STRCODE));
}
/* ======================================================================= */
@@ -66,10 +61,24 @@ inline void rtl_str_ImplCopy( IMPL_RTL_STRCODE* pDest,
sal_Int32 SAL_CALL IMPL_RTL_STRNAME( getLength )( const IMPL_RTL_STRCODE* pStr )
SAL_THROW_EXTERN_C()
{
- const IMPL_RTL_STRCODE* pTempStr = pStr;
- while( *pTempStr )
- pTempStr++;
- return pTempStr-pStr;
+// same as "if sal_Char mode"
+#ifndef IMPL_RTL_INTERN
+ // take advantage of builtin optimisations
+ return strlen( pStr);
+#else
+ if (sizeof(IMPL_RTL_STRCODE) == sizeof(wchar_t))
+ {
+ // take advantage of builtin optimisations
+ return wcslen((wchar_t*)pStr);
+ }
+ else
+ {
+ const IMPL_RTL_STRCODE* pTempStr = pStr;
+ while( *pTempStr )
+ pTempStr++;
+ return pTempStr-pStr;
+ }
+#endif
}
/* ----------------------------------------------------------------------- */
@@ -78,16 +87,30 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( compare )( const IMPL_RTL_STRCODE* pStr1,
const IMPL_RTL_STRCODE* pStr2 )
SAL_THROW_EXTERN_C()
{
- sal_Int32 nRet;
- while ( ((nRet = ((sal_Int32)(IMPL_RTL_USTRCODE(*pStr1)))-
- ((sal_Int32)(IMPL_RTL_USTRCODE(*pStr2)))) == 0) &&
- *pStr2 )
+// same as "if sal_Char mode"
+#ifndef IMPL_RTL_INTERN
+ // take advantage of builtin optimisations
+ return strcmp( pStr1, pStr2);
+#else
+ if (sizeof(IMPL_RTL_STRCODE) == sizeof(wchar_t))
{
- pStr1++;
- pStr2++;
+ // take advantage of builtin optimisations
+ return wcscmp((wchar_t*)pStr1, (wchar_t*)pStr2);
}
+ else
+ {
+ sal_Int32 nRet;
+ while ( ((nRet = ((sal_Int32)(IMPL_RTL_USTRCODE(*pStr1)))-
+ ((sal_Int32)(IMPL_RTL_USTRCODE(*pStr2)))) == 0) &&
+ *pStr2 )
+ {
+ pStr1++;
+ pStr2++;
+ }
- return nRet;
+ return nRet;
+ }
+#endif
}
/* ----------------------------------------------------------------------- */
@@ -98,18 +121,36 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( compare_WithLength )( const IMPL_RTL_STRCOD
sal_Int32 nStr2Len )
SAL_THROW_EXTERN_C()
{
- sal_Int32 nRet = nStr1Len - nStr2Len;
- int nCount = (nRet <= 0) ? nStr1Len : nStr2Len;
+// same as "if sal_Char mode"
+#ifndef IMPL_RTL_INTERN
+ // take advantage of builtin optimisations
+ sal_Int32 nMin = std::min(nStr1Len, nStr2Len);
+ sal_Int32 nRet = strncmp(pStr1, pStr2, nMin);
+ return nRet == 0 ? nStr1Len - nStr2Len : nRet;
+#else
+ if (sizeof(IMPL_RTL_STRCODE) == sizeof(wchar_t))
+ {
+ // take advantage of builtin optimisations
+ sal_Int32 nMin = std::min(nStr1Len, nStr2Len);
+ sal_Int32 nRet = wcsncmp((wchar_t*)pStr1, (wchar_t*)pStr2, nMin);
+ return nRet == 0 ? nStr1Len - nStr2Len : nRet;
+ }
+ else
+ {
+ sal_Int32 nRet = nStr1Len - nStr2Len;
+ int nCount = (nRet <= 0) ? nStr1Len : nStr2Len;
- --pStr1;
- --pStr2;
- while( (--nCount >= 0) && (*++pStr1 == *++pStr2) ) ;
+ --pStr1;
+ --pStr2;
+ while( (--nCount >= 0) && (*++pStr1 == *++pStr2) ) ;
- if( nCount >= 0 )
- nRet = ((sal_Int32)(IMPL_RTL_USTRCODE( *pStr1 )))
- - ((sal_Int32)(IMPL_RTL_USTRCODE( *pStr2 )));
+ if( nCount >= 0 )
+ nRet = ((sal_Int32)(IMPL_RTL_USTRCODE( *pStr1 )))
+ - ((sal_Int32)(IMPL_RTL_USTRCODE( *pStr2 )));
- return nRet;
+ return nRet;
+ }
+#endif
}
/* ----------------------------------------------------------------------- */
@@ -121,25 +162,47 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( shortenedCompare_WithLength )( const IMPL_R
sal_Int32 nShortenedLength )
SAL_THROW_EXTERN_C()
{
- const IMPL_RTL_STRCODE* pStr1End = pStr1 + nStr1Len;
- const IMPL_RTL_STRCODE* pStr2End = pStr2 + nStr2Len;
- sal_Int32 nRet;
- while ( (nShortenedLength > 0) &&
- (pStr1 < pStr1End) && (pStr2 < pStr2End) )
+// same as "if sal_Char mode"
+#ifndef IMPL_RTL_INTERN
+ // take advantage of builtin optimisations
+ sal_Int32 nMin = std::min(std::min(nStr1Len, nStr2Len), nShortenedLength);
+ sal_Int32 nRet = strncmp(pStr1, pStr2, nMin);
+ if (nRet == 0 && nShortenedLength > std::min(nStr1Len, nStr2Len))
+ return nStr1Len - nStr2Len;
+ return nRet;
+#else
+ if (sizeof(IMPL_RTL_STRCODE) == sizeof(wchar_t))
{
- nRet = ((sal_Int32)(IMPL_RTL_USTRCODE( *pStr1 )))-
- ((sal_Int32)(IMPL_RTL_USTRCODE( *pStr2 )));
- if ( nRet )
- return nRet;
-
- nShortenedLength--;
- pStr1++;
- pStr2++;
+ // take advantage of builtin optimisations
+ sal_Int32 nMin = std::min(std::min(nStr1Len, nStr2Len), nShortenedLength);
+ sal_Int32 nRet = wcsncmp((wchar_t*)pStr1, (wchar_t*)pStr2, nMin);
+ if (nRet == 0 && nShortenedLength > std::min(nStr1Len, nStr2Len))
+ return nStr1Len - nStr2Len;
+ return nRet;
}
+ else
+ {
+ const IMPL_RTL_STRCODE* pStr1End = pStr1 + nStr1Len;
+ const IMPL_RTL_STRCODE* pStr2End = pStr2 + nStr2Len;
+ sal_Int32 nRet;
+ while ( (nShortenedLength > 0) &&
+ (pStr1 < pStr1End) && (pStr2 < pStr2End) )
+ {
+ nRet = ((sal_Int32)(IMPL_RTL_USTRCODE( *pStr1 )))-
+ ((sal_Int32)(IMPL_RTL_USTRCODE( *pStr2 )));
+ if ( nRet )
+ return nRet;
+
+ nShortenedLength--;
+ pStr1++;
+ pStr2++;
+ }
- if ( nShortenedLength <= 0 )
- return 0;
- return nStr1Len - nStr2Len;
+ if ( nShortenedLength <= 0 )
+ return 0;
+ return nStr1Len - nStr2Len;
+ }
+#endif
}
/* ----------------------------------------------------------------------- */
@@ -272,16 +335,32 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( indexOfChar )( const IMPL_RTL_STRCODE* pStr
IMPL_RTL_STRCODE c )
SAL_THROW_EXTERN_C()
{
- const IMPL_RTL_STRCODE* pTempStr = pStr;
- while ( *pTempStr )
+// same as "if sal_Char mode"
+#ifndef IMPL_RTL_INTERN
+ // take advantage of builtin optimisations
+ const IMPL_RTL_STRCODE* p = strchr(pStr, c);
+ return p ? p - pStr : -1;
+#else
+ if (sizeof(IMPL_RTL_STRCODE) == sizeof(wchar_t))
+ {
+ // take advantage of builtin optimisations
+ wchar_t* p = wcschr((wchar_t*)pStr, (wchar_t)c);
+ return p ? p - (wchar_t*)pStr : -1;
+ }
+ else
{
- if ( *pTempStr == c )
- return pTempStr-pStr;
+ const IMPL_RTL_STRCODE* pTempStr = pStr;
+ while ( *pTempStr )
+ {
+ if ( *pTempStr == c )
+ return pTempStr-pStr;
- pTempStr++;
- }
+ pTempStr++;
+ }
- return -1;
+ return -1;
+ }
+#endif
}
/* ----------------------------------------------------------------------- */
@@ -291,6 +370,12 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( indexOfChar_WithLength )( const IMPL_RTL_ST
IMPL_RTL_STRCODE c )
SAL_THROW_EXTERN_C()
{
+// same as "if sal_Char mode"
+#ifndef IMPL_RTL_INTERN
+ // take advantage of builtin optimisations
+ IMPL_RTL_STRCODE* p = (IMPL_RTL_STRCODE*) memchr(pStr, c, nLen);
+ return p ? p - pStr : -1;
+#else
const IMPL_RTL_STRCODE* pTempStr = pStr;
while ( nLen > 0 )
{
@@ -302,6 +387,7 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( indexOfChar_WithLength )( const IMPL_RTL_ST
}
return -1;
+#endif
}
/* ----------------------------------------------------------------------- */
@@ -310,7 +396,23 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( lastIndexOfChar )( const IMPL_RTL_STRCODE*
IMPL_RTL_STRCODE c )
SAL_THROW_EXTERN_C()
{
- return IMPL_RTL_STRNAME( lastIndexOfChar_WithLength )( pStr, IMPL_RTL_STRNAME( getLength )( pStr ), c );
+// same as "if sal_Char mode"
+#ifndef IMPL_RTL_INTERN
+ // take advantage of builtin optimisations
+ const IMPL_RTL_STRCODE* p = strrchr(pStr, c);
+ return p ? p - pStr : -1;
+#else
+ if (sizeof(IMPL_RTL_STRCODE) == sizeof(wchar_t))
+ {
+ // take advantage of builtin optimisations
+ wchar_t* p = wcsrchr((wchar_t*)pStr, (wchar_t)c);
+ return p ? p - (wchar_t*)pStr : -1;
+ }
+ else
+ {
+ return IMPL_RTL_STRNAME( lastIndexOfChar_WithLength )( pStr, IMPL_RTL_STRNAME( getLength )( pStr ), c );
+ }
+#endif
}
/* ----------------------------------------------------------------------- */
@@ -339,8 +441,24 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( indexOfStr )( const IMPL_RTL_STRCODE* pStr,
const IMPL_RTL_STRCODE* pSubStr )
SAL_THROW_EXTERN_C()
{
- return IMPL_RTL_STRNAME( indexOfStr_WithLength )( pStr, IMPL_RTL_STRNAME( getLength )( pStr ),
- pSubStr, IMPL_RTL_STRNAME( getLength )( pSubStr ) );
+// same as "if sal_Char mode"
+#ifndef IMPL_RTL_INTERN
+ // take advantage of builtin optimisations
+ const IMPL_RTL_STRCODE* p = strstr(pStr, pSubStr);
+ return p ? p - pStr : -1;
+#else
+ if (sizeof(IMPL_RTL_STRCODE) == sizeof(wchar_t))
+ {
+ // take advantage of builtin optimisations
+ wchar_t* p = wcsstr((wchar_t*)pStr, (wchar_t*)pSubStr);
+ return p ? p - (wchar_t*)pStr : -1;
+ }
+ else
+ {
+ return IMPL_RTL_STRNAME( indexOfStr_WithLength )( pStr, IMPL_RTL_STRNAME( getLength )( pStr ),
+ pSubStr, IMPL_RTL_STRNAME( getLength )( pSubStr ) );
+ }
+#endif
}
/* ----------------------------------------------------------------------- */
@@ -354,7 +472,7 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( indexOfStr_WithLength )( const IMPL_RTL_STR
/* faster search for a single character */
if ( nSubLen < 2 )
{
- /* an empty SubString is always not foundable */
+ /* an empty SubString is always not findable */
if ( nSubLen == 1 )
{
IMPL_RTL_STRCODE c = *pSubStr;
@@ -428,7 +546,7 @@ sal_Int32 SAL_CALL IMPL_RTL_STRNAME( lastIndexOfStr_WithLength )( const IMPL_RTL
/* faster search for a single character */
if ( nSubLen < 2 )
{
- /* an empty SubString is always not foundable */
+ /* an empty SubString is always not findable */
if ( nSubLen == 1 )
{
IMPL_RTL_STRCODE c = *pSubStr;