Index: icu46/source/common/ucln_imp.h |
=================================================================== |
--- icu46/source/common/ucln_imp.h (revision 0) |
+++ icu46/source/common/ucln_imp.h (revision 0) |
@@ -0,0 +1,171 @@ |
+/* |
+****************************************************************************** |
+* * |
+* Copyright (C) 2009, International Business Machines * |
+* Corporation and others. All Rights Reserved. * |
+* * |
+****************************************************************************** |
+* file name: ucln_imp.h |
+* encoding: US-ASCII |
+* tab size: 8 (not used) |
+* indentation:4 |
+* |
+* This file contains the platform specific implementation of per-library cleanup. |
+* |
+*/ |
+ |
+ |
+#ifndef __UCLN_IMP_H__ |
+#define __UCLN_IMP_H__ |
+ |
+#include "ucln.h" |
+#include <stdlib.h> |
+ |
+/** |
+ * Auto cleanup of ICU libraries |
+ * There are several methods in per library cleanup of icu libraries: |
+ * 1) Compiler/Platform based cleanup: |
+ * a) Windows MSVC uses DllMain() |
+ * b) GCC uses destructor function attribute |
+ * c) Sun Studio, AIX VA, and HP-UX aCC uses a linker option to set the exit function |
+ * 2) Using atexit() |
+ * 3) Implementing own automatic cleanup functions |
+ * |
+ * For option 1, ensure that UCLN_NO_AUTO_CLEANUP is set to 0 by using --enable-auto-cleanup |
+ * configure option or by setting UCLN_NO_AUTO_CLEANUP to 0 in pwin32.h (For Visual Studio |
+ * solution file builds) |
+ * For option 2, follow option 1 and also define UCLN_AUTO_ATEXIT |
+ * For option 3, follow option 1 and also define UCLN_AUTO_LOCAL (see below for more information) |
+ */ |
+ |
+#if !UCLN_NO_AUTO_CLEANUP |
+ |
+/* |
+ * The following declarations are for when UCLN_AUTO_LOCAL or UCLN_AUTO_ATEXIT |
+ * are defined. They are commented out because they are static and will be defined |
+ * later. The information is still here to provide some guidance for the developer |
+ * who chooses to use UCLN_AUTO_LOCAL. |
+ */ |
+/** |
+ * Give the library an opportunity to register an automatic cleanup. |
+ * This may be called more than once. |
+ */ |
+/*static void ucln_registerAutomaticCleanup();*/ |
+/** |
+ * Unregister an automatic cleanup, if possible. Called from cleanup. |
+ */ |
+/*static void ucln_unRegisterAutomaticCleanup();*/ |
+ |
+/* ------------ automatic cleanup: registration. Choose ONE ------- */ |
+#if defined(UCLN_AUTO_LOCAL) |
+/* To use: |
+ * 1. define UCLN_AUTO_LOCAL, |
+ * 2. create ucln_local_hook.c containing implementations of |
+ * static void ucln_registerAutomaticCleanup() |
+ * static void ucln_unRegisterAutomaticCleanup() |
+ */ |
+#include "ucln_local_hook.c" |
+ |
+#elif defined(UCLN_AUTO_ATEXIT) |
+/* |
+ * Use the ANSI C 'atexit' function. Note that this mechanism does not |
+ * guarantee the order of cleanup relative to other users of ICU! |
+ */ |
+static UBool gAutoCleanRegistered = FALSE; |
+ |
+static void ucln_atexit_handler() |
+{ |
+ ucln_cleanupOne(UCLN_TYPE); |
+} |
+ |
+static void ucln_registerAutomaticCleanup() |
+{ |
+ if(!gAutoCleanRegistered) { |
+ gAutoCleanRegistered = TRUE; |
+ atexit(&ucln_atexit_handler); |
+ } |
+} |
+ |
+static void ucln_unRegisterAutomaticCleanup () { |
+} |
+/* ------------end of automatic cleanup: registration. ------- */ |
+ |
+#elif defined (UCLN_FINI) |
+/** |
+ * If UCLN_FINI is defined, it is the (versioned, etc) name of a cleanup |
+ * entrypoint. Add a stub to call ucln_cleanupOne |
+ * Used on AIX, Solaris, and HP-UX |
+ */ |
+U_CAPI void U_EXPORT2 UCLN_FINI (void); |
+ |
+U_CAPI void U_EXPORT2 UCLN_FINI () |
+{ |
+ /* This function must be defined, if UCLN_FINI is defined, else link error. */ |
+ ucln_cleanupOne(UCLN_TYPE); |
+} |
+#elif defined(__GNUC__) |
+/* GCC - use __attribute((destructor)) */ |
+static void ucln_destructor() __attribute__((destructor)) ; |
+ |
+static void ucln_destructor() |
+{ |
+ ucln_cleanupOne(UCLN_TYPE); |
+} |
+ |
+/* Windows: DllMain */ |
+#elif defined (U_WINDOWS) |
+/* |
+ * ICU's own DllMain. |
+ */ |
+ |
+/* these are from putil.c */ |
+/* READ READ READ READ! Are you getting compilation errors from windows.h? |
+ Any source file which includes this (ucln_imp.h) header MUST |
+ be defined with language extensions ON. */ |
+# define WIN32_LEAN_AND_MEAN |
+# define VC_EXTRALEAN |
+# define NOUSER |
+# define NOSERVICE |
+# define NOIME |
+# define NOMCX |
+# include <windows.h> |
+/* |
+ * This is a stub DllMain function with icu specific process handling code. |
+ */ |
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) |
+{ |
+ BOOL status = TRUE; |
+ |
+ switch(fdwReason) { |
+ case DLL_PROCESS_ATTACH: |
+ /* ICU does not trap process attach, but must pass these through properly. */ |
+ /* ICU specific process attach could go here */ |
+ break; |
+ |
+ case DLL_PROCESS_DETACH: |
+ /* Here is the one we actually care about. */ |
+ |
+ ucln_cleanupOne(UCLN_TYPE); |
+ |
+ break; |
+ |
+ case DLL_THREAD_ATTACH: |
+ /* ICU does not trap thread attach, but must pass these through properly. */ |
+ /* ICU specific thread attach could go here */ |
+ break; |
+ |
+ case DLL_THREAD_DETACH: |
+ /* ICU does not trap thread detach, but must pass these through properly. */ |
+ /* ICU specific thread detach could go here */ |
+ break; |
+ |
+ } |
+ return status; |
+} |
+#endif |
+ |
+#endif /* UCLN_NO_AUTO_CLEANUP */ |
+ |
+#else |
+#error This file can only be included once. |
+#endif |
Property changes on: icu46/source/common/ucln_imp.h |
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Added: svn:eol-style |
+ LF |