/** 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.
*/
/** * Data Type for cleanup function selector. These roughly correspond to libraries.
*/ typedefenum ECleanupLibraryType {
UCLN_START = -1,
UCLN_UPLUG, /* ICU plugins */
UCLN_CUSTOM, /* Custom is for anyone else. */
UCLN_CTESTFW,
UCLN_TOOLUTIL,
UCLN_LAYOUTEX,
UCLN_LAYOUT,
UCLN_IO,
UCLN_I18N,
UCLN_COMMON /* This must be the last one to cleanup. */
} ECleanupLibraryType;
/** * Data type for cleanup function pointer
*/
U_CDECL_BEGIN typedef UBool U_CALLCONV cleanupFunc(void); typedefvoid U_CALLCONV initFunc(UErrorCode *);
U_CDECL_END
/** * Register a cleanup function * @param type which library to register for. * @param func the function pointer
*/
U_CAPI void U_EXPORT2 ucln_registerCleanup(ECleanupLibraryType type,
cleanupFunc *func);
/** * Request cleanup for one specific library. * Not thread safe. * @param type which library to cleanup
*/
U_CAPI void U_EXPORT2 ucln_cleanupOne(ECleanupLibraryType type);
#endif
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