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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 
io_cleanup(void)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 
ucln_io_registerCleanup(ECleanupIOType type,cleanupFunc * func)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 
73