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      1 // Copyright (C) 2016 and later: Unicode, Inc. and others.
      2 // License & terms of use: http://www.unicode.org/copyright.html
      3 /*
      4 ******************************************************************************
      5 *                                                                            *
      6 * Copyright (C) 2001-2014, International Business Machines                   *
      7 *                Corporation and others. All Rights Reserved.                *
      8 *                                                                            *
      9 ******************************************************************************
     10 *   file name:  ucln_io.cpp
     11 *   encoding:   US-ASCII
     12 *   tab size:   8 (not used)
     13 *   indentation:4
     14 *
     15 *   created on: 2006August11
     16 *   created by: George Rhoten
     17 */
     18 
     19 #include "mutex.h"
     20 #include "ucln.h"
     21 #include "ucln_io.h"
     22 #include "uassert.h"
     23 
     24 #ifndef U_IO_IMPLEMENTATION
     25 #error U_IO_IMPLEMENTATION not set - must be set for all ICU source files in io/ - see http://userguide.icu-project.org/howtouseicu
     26 #endif
     27 
     28 
     29 /**  Auto-client */
     30 #define UCLN_TYPE UCLN_IO
     31 #include "ucln_imp.h"
     32 
     33 /* Leave this copyright notice here! It needs to go somewhere in this library. */
     34 static const char copyright[] = U_COPYRIGHT_STRING;
     35 
     36 static cleanupFunc *gCleanupFunctions[UCLN_IO_COUNT];
     37 
     38 static UBool U_CALLCONV io_cleanup(void)
     39 {
     40     int32_t libType = UCLN_IO_START;
     41 
     42     (void)copyright;  // Suppress unused variable warning.
     43     while (++libType<UCLN_IO_COUNT) {
     44         if (gCleanupFunctions[libType])
     45         {
     46             gCleanupFunctions[libType]();
     47             gCleanupFunctions[libType] = NULL;
     48         }
     49     }
     50 #if !UCLN_NO_AUTO_CLEANUP && (defined(UCLN_AUTO_ATEXIT) || defined(UCLN_AUTO_LOCAL))
     51     ucln_unRegisterAutomaticCleanup();
     52 #endif
     53     return TRUE;
     54 }
     55 
     56 void ucln_io_registerCleanup(ECleanupIOType type,
     57                                cleanupFunc *func) {
     58     U_ASSERT(UCLN_IO_START < type && type < UCLN_IO_COUNT);
     59     {
     60         icu::Mutex m;       // See ticket 10295 for discussion.
     61         ucln_registerCleanup(UCLN_IO, io_cleanup);
     62         if (UCLN_IO_START < type && type < UCLN_IO_COUNT) {
     63             gCleanupFunctions[type] = func;
     64         }
     65     }
     66 
     67 #if !UCLN_NO_AUTO_CLEANUP && (defined(UCLN_AUTO_ATEXIT) || defined(UCLN_AUTO_LOCAL))
     68     ucln_registerAutomaticCleanup();
     69 #endif
     70 }
     71 
     72