icuSources/io/ucln_io.cpp

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