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-// © 2016 and later: Unicode, Inc. and others.
-// License & terms of use: http://www.unicode.org/copyright.html
-/*
-******************************************************************************
-*
-* Copyright (C) 2009-2011, International Business Machines
-* Corporation and others. All Rights Reserved.
-*
-******************************************************************************
-* file name: ucln_imp.h
-* encoding: UTF-8
-* tab size: 8 (not used)
-* indentation:4
-*
-* This file contains the platform specific implementation of per-library cleanup.
-*
-*/
-
-
-#ifndef __UCLN_IMP_H__
-#define __UCLN_IMP_H__
-
-#include "ucln.h"
-#include <stdlib.h>
-
-/**
- * Auto cleanup of ICU libraries
- * There are several methods in per library cleanup of icu libraries:
- * 1) Compiler/Platform based cleanup:
- * a) Windows MSVC uses DllMain()
- * b) GCC uses destructor function attribute
- * c) Sun Studio, AIX VA, and HP-UX aCC uses a linker option to set the exit function
- * 2) Using atexit()
- * 3) Implementing own automatic cleanup functions
- *
- * For option 1, ensure that UCLN_NO_AUTO_CLEANUP is set to 0 by using --enable-auto-cleanup
- * configure option or by otherwise setting UCLN_NO_AUTO_CLEANUP to 0
- * For option 2, follow option 1 and also define UCLN_AUTO_ATEXIT
- * For option 3, follow option 1 and also define UCLN_AUTO_LOCAL (see below for more information)
- */
-
-#if !UCLN_NO_AUTO_CLEANUP
-
-/*
- * The following declarations are for when UCLN_AUTO_LOCAL or UCLN_AUTO_ATEXIT
- * are defined. They are commented out because they are static and will be defined
- * later. The information is still here to provide some guidance for the developer
- * who chooses to use UCLN_AUTO_LOCAL.
- */
-/**
- * Give the library an opportunity to register an automatic cleanup.
- * This may be called more than once.
- */
-/*static void ucln_registerAutomaticCleanup();*/
-/**
- * Unregister an automatic cleanup, if possible. Called from cleanup.
- */
-/*static void ucln_unRegisterAutomaticCleanup();*/
-
-#ifdef UCLN_TYPE_IS_COMMON
-# define UCLN_CLEAN_ME_UP u_cleanup()
-#else
-# define UCLN_CLEAN_ME_UP ucln_cleanupOne(UCLN_TYPE)
-#endif
-
-/* ------------ automatic cleanup: registration. Choose ONE ------- */
-#if defined(UCLN_AUTO_LOCAL)
-/* To use:
- * 1. define UCLN_AUTO_LOCAL,
- * 2. create ucln_local_hook.c containing implementations of
- * static void ucln_registerAutomaticCleanup()
- * static void ucln_unRegisterAutomaticCleanup()
- */
-#include "ucln_local_hook.c"
-
-#elif defined(UCLN_AUTO_ATEXIT)
-/*
- * Use the ANSI C 'atexit' function. Note that this mechanism does not
- * guarantee the order of cleanup relative to other users of ICU!
- */
-static UBool gAutoCleanRegistered = FALSE;
-
-static void ucln_atexit_handler()
-{
- UCLN_CLEAN_ME_UP;
-}
-
-static void ucln_registerAutomaticCleanup()
-{
- if(!gAutoCleanRegistered) {
- gAutoCleanRegistered = TRUE;
- atexit(&ucln_atexit_handler);
- }
-}
-
-static void ucln_unRegisterAutomaticCleanup () {
-}
-/* ------------end of automatic cleanup: registration. ------- */
-
-#elif defined (UCLN_FINI)
-/**
- * If UCLN_FINI is defined, it is the (versioned, etc) name of a cleanup
- * entrypoint. Add a stub to call ucln_cleanupOne
- * Used on AIX, Solaris, and HP-UX
- */
-U_CAPI void U_EXPORT2 UCLN_FINI (void);
-
-U_CAPI void U_EXPORT2 UCLN_FINI ()
-{
- /* This function must be defined, if UCLN_FINI is defined, else link error. */
- UCLN_CLEAN_ME_UP;
-}
-
-/* Windows: DllMain */
-#elif U_PLATFORM_HAS_WIN32_API
-/*
- * ICU's own DllMain.
- */
-
-/* these are from putil.c */
-/* READ READ READ READ! Are you getting compilation errors from windows.h?
- Any source file which includes this (ucln_imp.h) header MUST
- be defined with language extensions ON. */
-#ifndef WIN32_LEAN_AND_MEAN
-# define WIN32_LEAN_AND_MEAN
-#endif
-# define VC_EXTRALEAN
-# define NOUSER
-# define NOSERVICE
-# define NOIME
-# define NOMCX
-# include <windows.h>
-/*
- * This is a stub DllMain function with icu specific process handling code.
- */
-BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
-{
- BOOL status = TRUE;
-
- switch(fdwReason) {
- case DLL_PROCESS_ATTACH:
- /* ICU does not trap process attach, but must pass these through properly. */
- /* ICU specific process attach could go here */
- break;
-
- case DLL_PROCESS_DETACH:
- /* Here is the one we actually care about. */
-
- UCLN_CLEAN_ME_UP;
-
- break;
-
- case DLL_THREAD_ATTACH:
- /* ICU does not trap thread attach, but must pass these through properly. */
- /* ICU specific thread attach could go here */
- break;
-
- case DLL_THREAD_DETACH:
- /* ICU does not trap thread detach, but must pass these through properly. */
- /* ICU specific thread detach could go here */
- break;
-
- }
- return status;
-}
-
-#elif defined(__GNUC__)
-/* GCC - use __attribute((destructor)) */
-static void ucln_destructor() __attribute__((destructor)) ;
-
-static void ucln_destructor()
-{
- UCLN_CLEAN_ME_UP;
-}
-
-#endif
-
-#endif /* UCLN_NO_AUTO_CLEANUP */
-
-#else
-#error This file can only be included once.
-#endif