diff -r 000000000000 -r 1fb32624e06b fontservices/textshaperplugin/IcuSource/common/ucln.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/fontservices/textshaperplugin/IcuSource/common/ucln.h Tue Feb 02 02:02:46 2010 +0200 @@ -0,0 +1,67 @@ +/* +****************************************************************************** +* * +* Copyright (C) 2001-2004, International Business Machines * +* Corporation and others. All Rights Reserved. * +* * +****************************************************************************** +* file name: ucln_cmn.h +* encoding: US-ASCII +* tab size: 8 (not used) +* indentation:4 +* +* created on: 2001July05 +* created by: George Rhoten +*/ + +#ifndef __UCLN_H__ +#define __UCLN_H__ + +#include "unicode/utypes.h" + +/** These are the functions used to register a library's memory cleanup + * functions. Each library should define a single library register function + * to call this API. In the i18n library, it is ucln_i18n_registerCleanup(). + * + * None of the cleanup functions should use a mutex to clean up an API's + * allocated memory because a cleanup function is not meant to be thread safe, + * and plenty of data cannot be reference counted in order to make sure that + * no one else needs the allocated data. + * + * In order to make a cleanup function get called when u_cleanup is called, + * You should add your function to the library specific cleanup function. + * If the cleanup function is not in the common library, the code that + * allocates the memory should call the library specific cleanup function. + * For instance, in the i18n library, any memory allocated statically must + * call ucln_i18n_registerCleanup() from the ucln_in.h header. These library + * cleanup functions are needed in order to prevent a circular dependency + * between the common library and any other library. + * + * The order of the cleanup is very important. In general, an API that + * depends on a second API should be cleaned up before the second API. + * For instance, the default converter in ustring depends upon the converter + * API. So the default converter should be closed before the converter API + * has its cache flushed. This will prevent any memory leaks due to + * reference counting. + * + * Please see common/ucln_cmn.{h,c} and i18n/ucln_in.{h,c} for examples. + */ + +typedef enum ECleanupLibraryType { + UCLN_START = -1, + UCLN_CUSTOM, /* Custom is for anyone else. */ + UCLN_LAYOUTEX, + UCLN_LAYOUT, + UCLN_IO, + UCLN_I18N, + UCLN_COMMON /* This must be the last one to cleanup. */ +} ECleanupLibraryType; + +U_CDECL_BEGIN +typedef UBool U_CALLCONV cleanupFunc(void); +U_CDECL_END + +U_CAPI void U_EXPORT2 ucln_registerCleanup(ECleanupLibraryType type, + cleanupFunc *func); + +#endif