author | acorn |
Mon, 25 Oct 2010 13:31:55 -0400 | |
changeset 6976 | dc8fa18c4c60 |
parent 5547 | f4b087cbb361 |
child 7397 | 5b173b4ca846 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2000, 2005, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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#include "incls/_precompiled.incl" |
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#include "incls/_javaAssertions.cpp.incl" |
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bool JavaAssertions::_userDefault = false; |
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bool JavaAssertions::_sysDefault = false; |
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JavaAssertions::OptionList* JavaAssertions::_classes = 0; |
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JavaAssertions::OptionList* JavaAssertions::_packages = 0; |
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JavaAssertions::OptionList::OptionList(const char* name, bool enabled, |
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OptionList* next) { |
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assert(name != 0, "need a name"); |
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_name = name; |
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_enabled = enabled; |
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_next = next; |
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} |
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int JavaAssertions::OptionList::count(OptionList* p) { |
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int rc; |
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for (rc = 0; p != 0; p = p->next(), ++rc) /* empty */; |
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return rc; |
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} |
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void JavaAssertions::addOption(const char* name, bool enable) { |
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assert(name != 0, "must have a name"); |
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// Copy the name. The storage needs to exist for the the lifetime of the vm; |
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// it is never freed, so will be leaked (along with other option strings - |
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// e.g., bootclasspath) if a process creates/destroys multiple VMs. |
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int len = (int)strlen(name); |
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char *name_copy = NEW_C_HEAP_ARRAY(char, len + 1); |
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strcpy(name_copy, name); |
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// Figure out which list the new item should go on. Names that end in "..." |
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// go on the package tree list. |
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OptionList** head = &_classes; |
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if (len >= 3 && strcmp(name_copy + len - 3, "...") == 0) { |
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// Delete the "...". |
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len -= 3; |
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name_copy[len] = '\0'; |
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head = &_packages; |
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} |
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// Convert class/package names to internal format. Will have to convert back |
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// when copying to java in createJavaAssertionStatusDirectives, but that |
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// should happen only once. Alternative would require that |
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// JVM_DesiredAssertionStatus pass the external_name() to |
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// JavaAssertion::enabled(), but that is done once per loaded class. |
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for (int i = 0; i < len; ++i) { |
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if (name_copy[i] == '.') name_copy[i] = '/'; |
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} |
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if (TraceJavaAssertions) { |
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tty->print_cr("JavaAssertions: adding %s %s=%d", |
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head == &_classes ? "class" : "package", |
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name_copy[0] != '\0' ? name_copy : "'default'", |
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enable); |
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} |
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// Prepend a new item to the list. Items added later take precedence, so |
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// prepending allows us to stop searching the list after the first match. |
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*head = new OptionList(name_copy, enable, *head); |
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} |
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oop JavaAssertions::createAssertionStatusDirectives(TRAPS) { |
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symbolHandle asd_sym = vmSymbolHandles::java_lang_AssertionStatusDirectives(); |
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klassOop k = SystemDictionary::resolve_or_fail(asd_sym, true, CHECK_NULL); |
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instanceKlassHandle asd_klass (THREAD, k); |
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asd_klass->initialize(CHECK_NULL); |
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Handle h = asd_klass->allocate_instance_handle(CHECK_NULL); |
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int len; |
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typeArrayOop t; |
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len = OptionList::count(_packages); |
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objArrayOop pn = oopFactory::new_objArray(SystemDictionary::String_klass(), len, CHECK_NULL); |
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objArrayHandle pkgNames (THREAD, pn); |
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t = oopFactory::new_typeArray(T_BOOLEAN, len, CHECK_NULL); |
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typeArrayHandle pkgEnabled(THREAD, t); |
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fillJavaArrays(_packages, len, pkgNames, pkgEnabled, CHECK_NULL); |
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len = OptionList::count(_classes); |
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objArrayOop cn = oopFactory::new_objArray(SystemDictionary::String_klass(), len, CHECK_NULL); |
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objArrayHandle classNames (THREAD, cn); |
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t = oopFactory::new_typeArray(T_BOOLEAN, len, CHECK_NULL); |
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typeArrayHandle classEnabled(THREAD, t); |
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fillJavaArrays(_classes, len, classNames, classEnabled, CHECK_NULL); |
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java_lang_AssertionStatusDirectives::set_packages(h(), pkgNames()); |
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java_lang_AssertionStatusDirectives::set_packageEnabled(h(), pkgEnabled()); |
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java_lang_AssertionStatusDirectives::set_classes(h(), classNames()); |
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java_lang_AssertionStatusDirectives::set_classEnabled(h(), classEnabled()); |
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java_lang_AssertionStatusDirectives::set_deflt(h(), userClassDefault()); |
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return h(); |
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} |
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void JavaAssertions::fillJavaArrays(const OptionList* p, int len, |
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objArrayHandle names, typeArrayHandle enabled, TRAPS) { |
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// Fill in the parallel names and enabled (boolean) arrays. Start at the end |
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// of the array and work backwards, so the order of items in the arrays |
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// matches the order on the command line (the list is in reverse order, since |
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// it was created by prepending successive items from the command line). |
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int index; |
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for (index = len - 1; p != 0; p = p->next(), --index) { |
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assert(index >= 0, "length does not match list"); |
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Handle s = java_lang_String::create_from_str(p->name(), CHECK); |
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s = java_lang_String::char_converter(s, '/', '.', CHECK); |
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names->obj_at_put(index, s()); |
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enabled->bool_at_put(index, p->enabled()); |
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} |
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assert(index == -1, "length does not match list"); |
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} |
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inline JavaAssertions::OptionList* |
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JavaAssertions::match_class(const char* classname) { |
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for (OptionList* p = _classes; p != 0; p = p->next()) { |
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if (strcmp(p->name(), classname) == 0) { |
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return p; |
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} |
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} |
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return 0; |
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} |
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JavaAssertions::OptionList* |
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JavaAssertions::match_package(const char* classname) { |
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// Search the package list for any items that apply to classname. Each |
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// sub-package in classname is checked, from most-specific to least, until one |
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// is found. |
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if (_packages == 0) return 0; |
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// Find the length of the "most-specific" package in classname. If classname |
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// does not include a package, length will be 0 which will match items for the |
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// default package (from options "-ea:..." or "-da:..."). |
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size_t len = strlen(classname); |
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for (/* empty */; len > 0 && classname[len] != '/'; --len) /* empty */; |
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do { |
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assert(len == 0 || classname[len] == '/', "not a package name"); |
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for (OptionList* p = _packages; p != 0; p = p->next()) { |
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if (strncmp(p->name(), classname, len) == 0 && p->name()[len] == '\0') { |
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return p; |
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} |
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} |
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// Find the length of the next package, taking care to avoid decrementing |
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// past 0 (len is unsigned). |
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while (len > 0 && classname[--len] != '/') /* empty */; |
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} while (len > 0); |
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return 0; |
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} |
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inline void JavaAssertions::trace(const char* name, |
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const char* typefound, const char* namefound, bool enabled) { |
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if (TraceJavaAssertions) { |
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tty->print_cr("JavaAssertions: search for %s found %s %s=%d", |
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name, typefound, namefound[0] != '\0' ? namefound : "'default'", enabled); |
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} |
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} |
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bool JavaAssertions::enabled(const char* classname, bool systemClass) { |
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assert(classname != 0, "must have a classname"); |
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// This will be slow if the number of assertion options on the command line is |
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// large--it traverses two lists, one of them multiple times. Could use a |
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// single n-ary tree instead of lists if someone ever notices. |
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// First check options that apply to classes. If we find a match we're done. |
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OptionList* p; |
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if (p = match_class(classname)) { |
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trace(classname, "class", p->name(), p->enabled()); |
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return p->enabled(); |
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} |
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// Now check packages, from most specific to least. |
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if (p = match_package(classname)) { |
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trace(classname, "package", p->name(), p->enabled()); |
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return p->enabled(); |
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} |
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// No match. Return the default status. |
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bool result = systemClass ? systemClassDefault() : userClassDefault(); |
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trace(classname, systemClass ? "system" : "user", "default", result); |
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return result; |
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} |