author | rriggs |
Fri, 09 Nov 2018 13:28:16 -0500 | |
changeset 52478 | b915bd68d907 |
parent 47216 | 71c04702a3d5 |
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/* |
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* Copyright (c) 2015, 2017, 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. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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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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#include <stdlib.h> |
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#include <string.h> |
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#include "jni.h" |
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#include "jni_util.h" |
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#include "jvm.h" |
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#include "java_lang_Module.h" |
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/* |
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* Gets the UTF-8 chars for the string and translates '.' to '/'. Does no |
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* further validation, assumption being that both calling code in |
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* java.lang.Module and VM will do deeper validation. |
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*/ |
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static char* |
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GetInternalPackageName(JNIEnv *env, jstring pkg, char* buf, jsize buf_size) |
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{ |
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jsize len; |
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jsize unicode_len; |
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char* p; |
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char* utf_str; |
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len = (*env)->GetStringUTFLength(env, pkg); |
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unicode_len = (*env)->GetStringLength(env, pkg); |
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if (len >= buf_size) { |
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utf_str = malloc(len + 1); |
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if (utf_str == NULL) { |
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JNU_ThrowOutOfMemoryError(env, NULL); |
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return NULL; |
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} |
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} else { |
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utf_str = buf; |
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} |
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(*env)->GetStringUTFRegion(env, pkg, 0, unicode_len, utf_str); |
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|
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p = utf_str; |
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while (*p != '\0') { |
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if (*p == '.') { |
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*p = '/'; |
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} |
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p++; |
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} |
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return utf_str; |
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} |
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JNIEXPORT void JNICALL |
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Java_java_lang_Module_defineModule0(JNIEnv *env, jclass cls, jobject module, |
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jboolean is_open, jstring version, |
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jstring location, jobjectArray packages) |
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{ |
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char** pkgs = NULL; |
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jsize num_packages = (*env)->GetArrayLength(env, packages); |
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if (num_packages != 0 && (pkgs = calloc(num_packages, sizeof(char*))) == NULL) { |
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JNU_ThrowOutOfMemoryError(env, NULL); |
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return; |
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} else if ((*env)->EnsureLocalCapacity(env, (jint)num_packages) == 0) { |
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jboolean failed = JNI_FALSE; |
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int idx; |
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for (idx = 0; idx < num_packages; idx++) { |
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jstring pkg = (*env)->GetObjectArrayElement(env, packages, idx); |
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char* name = GetInternalPackageName(env, pkg, NULL, 0); |
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if (name != NULL) { |
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pkgs[idx] = name; |
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} else { |
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failed = JNI_TRUE; |
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break; |
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} |
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} |
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if (!failed) { |
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JVM_DefineModule(env, module, is_open, version, location, |
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(const char* const*)pkgs, num_packages); |
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} |
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} |
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if (num_packages > 0) { |
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int idx; |
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for (idx = 0; idx < num_packages; idx++) { |
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if (pkgs[idx] != NULL) { |
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free(pkgs[idx]); |
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} |
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} |
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free(pkgs); |
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} |
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} |
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JNIEXPORT void JNICALL |
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Java_java_lang_Module_addReads0(JNIEnv *env, jclass cls, jobject from, jobject to) |
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{ |
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JVM_AddReadsModule(env, from, to); |
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} |
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JNIEXPORT void JNICALL |
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Java_java_lang_Module_addExports0(JNIEnv *env, jclass cls, jobject from, |
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jstring pkg, jobject to) |
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{ |
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char buf[128]; |
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char* pkg_name; |
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if (pkg == NULL) { |
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JNU_ThrowNullPointerException(env, "package is null"); |
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return; |
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} |
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pkg_name = GetInternalPackageName(env, pkg, buf, (jsize)sizeof(buf)); |
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if (pkg_name != NULL) { |
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JVM_AddModuleExports(env, from, pkg_name, to); |
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if (pkg_name != buf) { |
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free(pkg_name); |
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} |
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} |
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} |
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JNIEXPORT void JNICALL |
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Java_java_lang_Module_addExportsToAll0(JNIEnv *env, jclass cls, jobject from, |
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jstring pkg) |
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{ |
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char buf[128]; |
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char* pkg_name; |
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if (pkg == NULL) { |
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JNU_ThrowNullPointerException(env, "package is null"); |
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return; |
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} |
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pkg_name = GetInternalPackageName(env, pkg, buf, (jsize)sizeof(buf)); |
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if (pkg_name != NULL) { |
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JVM_AddModuleExportsToAll(env, from, pkg_name); |
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if (pkg_name != buf) { |
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free(pkg_name); |
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} |
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} |
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} |
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JNIEXPORT void JNICALL |
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Java_java_lang_Module_addExportsToAllUnnamed0(JNIEnv *env, jclass cls, |
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jobject from, jstring pkg) |
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{ |
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char buf[128]; |
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char* pkg_name; |
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|
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if (pkg == NULL) { |
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JNU_ThrowNullPointerException(env, "package is null"); |
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return; |
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} |
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|
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pkg_name = GetInternalPackageName(env, pkg, buf, (jsize)sizeof(buf)); |
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if (pkg_name != NULL) { |
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JVM_AddModuleExportsToAllUnnamed(env, from, pkg_name); |
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if (pkg_name != buf) { |
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free(pkg_name); |
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} |
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} |
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} |