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Diffstat (limited to 'Build/source/libs/icu/icu-xetex/common/uinit.c')
-rw-r--r-- | Build/source/libs/icu/icu-xetex/common/uinit.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/Build/source/libs/icu/icu-xetex/common/uinit.c b/Build/source/libs/icu/icu-xetex/common/uinit.c new file mode 100644 index 00000000000..1f2c6d6b8f8 --- /dev/null +++ b/Build/source/libs/icu/icu-xetex/common/uinit.c @@ -0,0 +1,113 @@ +/* +****************************************************************************** +* * +* Copyright (C) 2001-2007, International Business Machines * +* Corporation and others. All Rights Reserved. * +* * +****************************************************************************** +* file name: uinit.c +* encoding: US-ASCII +* tab size: 8 (not used) +* indentation:4 +* +* created on: 2001July05 +* created by: George Rhoten +*/ + +#include "unicode/utypes.h" +#include "unicode/uclean.h" +#include "utracimp.h" +#include "ustr_imp.h" +#include "unormimp.h" +#include "ucln_cmn.h" +#include "ucnv_io.h" +#include "umutex.h" +#include "ucln.h" +#include "cmemory.h" +#include "uassert.h" + +static UBool gICUInitialized = FALSE; +static UMTX gICUInitMutex = NULL; + + +/************************************************ + The cleanup order is important in this function. + Please be sure that you have read ucln.h + ************************************************/ +U_CAPI void U_EXPORT2 +u_cleanup(void) +{ + UTRACE_ENTRY_OC(UTRACE_U_CLEANUP); + umtx_lock(NULL); /* Force a memory barrier, so that we are sure to see */ + umtx_unlock(NULL); /* all state left around by any other threads. */ + + ucln_lib_cleanup(); + + umtx_destroy(&gICUInitMutex); + umtx_cleanup(); + cmemory_cleanup(); /* undo any heap functions set by u_setMemoryFunctions(). */ + gICUInitialized = FALSE; + UTRACE_EXIT(); /* Must be before utrace_cleanup(), which turns off tracing. */ +/*#if U_ENABLE_TRACING*/ + utrace_cleanup(); +/*#endif*/ +} + +/* + * + * ICU Initialization Function. Force loading and/or initialization of + * any shared data that could potentially be used concurrently + * by multiple threads. + */ +U_CAPI void U_EXPORT2 +u_init(UErrorCode *status) { + UTRACE_ENTRY_OC(UTRACE_U_INIT); + /* Make sure the global mutexes are initialized. */ + umtx_init(NULL); + umtx_lock(&gICUInitMutex); + if (gICUInitialized || U_FAILURE(*status)) { + umtx_unlock(&gICUInitMutex); + UTRACE_EXIT_STATUS(*status); + return; + } + +#if 1 + /* + * 2005-may-02 + * + * ICU4C 3.4 (jitterbug 4497) hardcodes the data for Unicode character + * properties for APIs that want to be fast. + * Therefore, we need not load them here nor check for errors. + * Instead, we load the converter alias table to see if any ICU data + * is available. + * Users should really open the service objects they need and check + * for errors there, to make sure that the actual items they need are + * available. + */ +#if !UCONFIG_NO_CONVERSION + ucnv_io_countKnownConverters(status); +#endif +#else + /* Do any required init for services that don't have open operations + * and use "only" the double-check initialization method for performance + * reasons (avoiding a mutex lock even for _checking_ whether the + * initialization had occurred). + */ + + /* Char Properties */ + uprv_haveProperties(status); + + /* load the case and bidi properties but don't fail if they are not available */ + u_isULowercase(0x61); + u_getIntPropertyValue(0x200D, UCHAR_JOINING_TYPE); /* ZERO WIDTH JOINER: Join_Causing */ + +#if !UCONFIG_NO_NORMALIZATION + /* Normalization */ + unorm_haveData(status); +#endif +#endif + gICUInitialized = TRUE; /* TODO: don't set if U_FAILURE? */ + umtx_unlock(&gICUInitMutex); + UTRACE_EXIT_STATUS(*status); +} + |