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/*
******************************************************************************
* Copyright (C) 2001-2012, International Business Machines
* Corporation and others. All Rights Reserved.
******************************************************************************
* file name: ucln_cmn.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 "ucln_cmn.h"
#include "umutex.h"
#include "ucln.h"
#include "cmemory.h"
#include "uassert.h"
/** Auto-client for UCLN_COMMON **/
#define UCLN_TYPE_IS_COMMON
#include "ucln_imp.h"
static UBool gICUInitialized = FALSE;
static UMutex gICUInitMutex = U_MUTEX_INITIALIZER;
static cleanupFunc *gCommonCleanupFunctions[UCLN_COMMON_COUNT];
static cleanupFunc *gLibCleanupFunctions[UCLN_COMMON];
U_CFUNC UBool ucln_mutexedInit(initFunc *func, UErrorCode *status) {
UBool initialized = FALSE;
umtx_lock(&gICUInitMutex);
if (!gICUInitialized && U_SUCCESS(*status)) {
if (func != NULL) {
func(status);
}
gICUInitialized = TRUE; /* TODO: don't set if U_FAILURE? */
initialized = TRUE;
}
umtx_unlock(&gICUInitMutex);
return initialized;
}
/************************************************
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_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*/
}
U_CAPI void U_EXPORT2 ucln_cleanupOne(ECleanupLibraryType libType)
{
if (gLibCleanupFunctions[libType])
{
gLibCleanupFunctions[libType]();
gLibCleanupFunctions[libType] = NULL;
}
}
U_CFUNC void
ucln_common_registerCleanup(ECleanupCommonType type,
cleanupFunc *func)
{
U_ASSERT(UCLN_COMMON_START < type && type < UCLN_COMMON_COUNT);
if (UCLN_COMMON_START < type && type < UCLN_COMMON_COUNT)
{
gCommonCleanupFunctions[type] = func;
}
#if !UCLN_NO_AUTO_CLEANUP && (defined(UCLN_AUTO_ATEXIT) || defined(UCLN_AUTO_LOCAL))
ucln_registerAutomaticCleanup();
#endif
}
U_CAPI void U_EXPORT2
ucln_registerCleanup(ECleanupLibraryType type,
cleanupFunc *func)
{
U_ASSERT(UCLN_START < type && type < UCLN_COMMON);
if (UCLN_START < type && type < UCLN_COMMON)
{
gLibCleanupFunctions[type] = func;
}
}
U_CFUNC UBool ucln_lib_cleanup(void) {
ECleanupLibraryType libType = UCLN_START;
ECleanupCommonType commonFunc = UCLN_COMMON_START;
for (libType++; libType<UCLN_COMMON; libType++) {
ucln_cleanupOne(libType);
}
for (commonFunc++; commonFunc<UCLN_COMMON_COUNT; commonFunc++) {
if (gCommonCleanupFunctions[commonFunc])
{
gCommonCleanupFunctions[commonFunc]();
gCommonCleanupFunctions[commonFunc] = NULL;
}
}
#if !UCLN_NO_AUTO_CLEANUP && (defined(UCLN_AUTO_ATEXIT) || defined(UCLN_AUTO_LOCAL))
ucln_unRegisterAutomaticCleanup();
#endif
return TRUE;
}
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