1 files changed, 71 insertions, 0 deletions
diff --git a/intl/icu/source/io/ucln_io.cpp b/intl/icu/source/io/ucln_io.cpp
new file mode 100644
index 0000000000..e2ddb35870
--- /dev/null
+++ b/intl/icu/source/io/ucln_io.cpp
@@ -0,0 +1,71 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/*
+******************************************************************************
+*                                                                            *
+* Copyright (C) 2001-2014, International Business Machines                   *
+*                Corporation and others. All Rights Reserved.                *
+*                                                                            *
+******************************************************************************
+*   file name:  ucln_io.cpp
+*   encoding:   UTF-8
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2006August11
+*   created by: George Rhoten
+*/
+
+#include "unicode/utypes.h"
+#include "mutex.h"
+#include "ucln.h"
+#include "ucln_io.h"
+#include "uassert.h"
+
+#ifndef U_IO_IMPLEMENTATION
+#error U_IO_IMPLEMENTATION not set - must be set for all ICU source files in io/ - see https://unicode-org.github.io/icu/userguide/howtouseicu
+#endif
+
+
+/**  Auto-client */
+#define UCLN_TYPE UCLN_IO
+#include "ucln_imp.h"
+
+/* Leave this copyright notice here! It needs to go somewhere in this library. */
+static const char copyright[] = U_COPYRIGHT_STRING;
+
+static cleanupFunc *gCleanupFunctions[UCLN_IO_COUNT];
+
+static UBool U_CALLCONV io_cleanup()
+{
+    int32_t libType = UCLN_IO_START;
+
+    (void)copyright;  // Suppress unused variable warning.
+    while (++libType<UCLN_IO_COUNT) {
+        if (gCleanupFunctions[libType])
+        {
+            gCleanupFunctions[libType]();
+            gCleanupFunctions[libType] = nullptr;
+        }
+    }
+#if !UCLN_NO_AUTO_CLEANUP && (defined(UCLN_AUTO_ATEXIT) || defined(UCLN_AUTO_LOCAL))
+    ucln_unRegisterAutomaticCleanup();
+#endif
+    return true;
+}
+
+void ucln_io_registerCleanup(ECleanupIOType type,
+                               cleanupFunc *func) {
+    U_ASSERT(UCLN_IO_START < type && type < UCLN_IO_COUNT);
+    {
+        icu::Mutex m;       // See ticket 10295 for discussion.
+        ucln_registerCleanup(UCLN_IO, io_cleanup);
+        if (UCLN_IO_START < type && type < UCLN_IO_COUNT) {
+            gCleanupFunctions[type] = func;
+        }
+    }
+
+#if !UCLN_NO_AUTO_CLEANUP && (defined(UCLN_AUTO_ATEXIT) || defined(UCLN_AUTO_LOCAL))
+    ucln_registerAutomaticCleanup();
+#endif
+}