haiku/headers/private/libroot/locale/ICULocaleBackend.h
Augustin Cavalier 218604196a libroot: Fix ICU locale implementation of wcsxfrm.
* The "size" parameter is the size of "out" not "in", and the
   return size_t parameter is supposed to always have the total amount
   of wchar_ts needed, not how many are actually used.
 * In the case where "outSize == 0", we set "requiredSize" and then
   return.

Fixes crashes seen in glib2 Unicode collation routines, which
are used in GTK file dialogs.

Thanks to PulkoMandy for glancing at this.
2022-01-11 16:34:15 -05:00

114 lines
3.2 KiB
C++

/*
* Copyright 2010-2011, Oliver Tappe, zooey@hirschkaefer.de.
* Distributed under the terms of the MIT License.
*/
#ifndef _ICU_LOCALE_BACKEND_H
#define _ICU_LOCALE_BACKEND_H
#include "LocaleBackend.h"
#include <locale.h>
#include <pthread.h>
#include <timelocal.h>
#include "ICUCollateData.h"
#include "ICUCtypeData.h"
#include "ICUMessagesData.h"
#include "ICUMonetaryData.h"
#include "ICUNumericData.h"
#include "ICUTimeConversion.h"
#include "ICUTimeData.h"
namespace BPrivate {
namespace Libroot {
class ICULocaleBackend : public LocaleBackend {
public:
ICULocaleBackend();
virtual ~ICULocaleBackend();
virtual void Initialize(LocaleDataBridge* dataBridge);
virtual const char* SetLocale(int category,
const char* posixLocaleName);
virtual const struct lconv* LocaleConv();
virtual const struct lc_time_t* LCTimeInfo();
virtual int IsWCType(wint_t wc, wctype_t charClass);
virtual status_t ToWCTrans(wint_t wc, wctrans_t transition,
wint_t& result);
virtual status_t MultibyteToWchar(wchar_t* wcOut, const char* mb,
size_t mbLength, mbstate_t* mbState,
size_t& lengthOut);
virtual status_t MultibyteStringToWchar(wchar_t* wcDest,
size_t wcDestLength, const char** mbSource,
size_t mbSourceLength, mbstate_t* mbState,
size_t& lengthOut);
virtual status_t WcharToMultibyte(char* mbOut, wchar_t wc,
mbstate_t* mbState, size_t& lengthOut);
virtual status_t WcharStringToMultibyte(char* mbDest,
size_t mbDestLength,
const wchar_t** wcSource,
size_t wcSourceLength, mbstate_t* mbState,
size_t& lengthOut);
virtual const char* GetLanginfo(int index);
virtual status_t Strcoll(const char* a, const char* b, int& out);
virtual status_t Strxfrm(char* out, const char* in, size_t size,
size_t& outSize);
virtual status_t Wcscoll(const wchar_t* a, const wchar_t* b,
int& out);
virtual status_t Wcsxfrm(wchar_t* out, const wchar_t* in,
size_t outSize, size_t& requiredSize);
virtual status_t TZSet(const char* timeZoneID, const char* tz);
virtual status_t Localtime(const time_t* inTime,
struct tm* tmOut);
virtual status_t Gmtime(const time_t* inTime, struct tm* tmOut);
virtual status_t Mktime(struct tm* inOutTm, time_t& timeOut);
virtual status_t Timegm(struct tm* inOutTm, time_t& timeOut);
private:
const char* _QueryLocale(int category);
const char* _SetPosixLocale(int category);
static pthread_key_t _CreateThreadLocalStorageKey();
static void _DestroyThreadLocalStorageValue(void* value);
// buffer for locale names (up to one per category)
char fLocaleDescription[1024];
// data containers
struct lconv fLocaleConv;
struct lc_time_t fLCTimeInfo;
//
pthread_key_t fThreadLocalStorageKey;
// these work on the data containers above
ICUCollateData fCollateData;
ICUCtypeData fCtypeData;
ICUMessagesData fMessagesData;
ICUMonetaryData fMonetaryData;
ICUNumericData fNumericData;
ICUTimeData fTimeData;
ICUTimeConversion fTimeConversion;
// static posix langinfo data
const char** fPosixLanginfo;
};
} // namespace Libroot
} // namespace BPrivate
#endif // _ICU_LOCALE_BACKEND_H