| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| /** |
| * @author Gregory Shimansky |
| */ |
| /* |
| * Memory management functions in JVMTI |
| */ |
| |
| #include "jvmti_direct.h" |
| #include "jvmti_utils.h" |
| #include "cxxlog.h" |
| #include "suspend_checker.h" |
| |
| /* |
| * @see official specification for details. |
| */ |
| jvmtiError JNICALL |
| jvmtiAllocate(jvmtiEnv* env, jlong size, unsigned char** res) |
| { |
| TRACE2("jvmti.mem", "Allocate called, size = " << size); |
| SuspendEnabledChecker sec; |
| |
| /* |
| * Check given env & current phase. |
| */ |
| jvmtiPhase* phases = NULL; |
| |
| CHECK_EVERYTHING(); |
| |
| if (size < 0) |
| return JVMTI_ERROR_ILLEGAL_ARGUMENT; |
| |
| if (size == 0) |
| { |
| *res = NULL; |
| return JVMTI_ERROR_NONE; |
| } |
| |
| if (res == NULL) |
| return JVMTI_ERROR_NULL_POINTER; |
| |
| jvmtiError err = _allocate(size, res); |
| return err; |
| } |
| |
| /* |
| * Deallocate |
| * |
| * Deallocate mem using the JVMTI allocator. This function should |
| * be used to deallocate any memory allocated and returned by a |
| * JVMTI function (including memory allocated with Allocate). All |
| * allocated memory must be deallocated or the memory cannot be |
| * reclaimed. |
| * |
| * REQUIRED Functionality |
| */ |
| jvmtiError JNICALL |
| jvmtiDeallocate(jvmtiEnv* env, |
| unsigned char* mem) |
| { |
| TRACE2("jvmti.mem", "Deallocate called"); |
| SuspendEnabledChecker sec; |
| /* |
| * Check given env & current phase. |
| */ |
| jvmtiPhase* phases = NULL; |
| |
| CHECK_EVERYTHING(); |
| |
| if (mem == NULL) { |
| return JVMTI_ERROR_NONE; |
| } |
| else { |
| _deallocate(mem); |
| return JVMTI_ERROR_NONE; |
| } |
| } |
| |