1 /*
2  * Copyright 2012, The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "bcc/BCCContext.h"
18 
19 #include <new>
20 
21 #include "bcc/Source.h"
22 #include "bcc/Support/Log.h"
23 
24 #include "BCCContextImpl.h"
25 
26 using namespace bcc;
27 
28 static BCCContext *GlobalContext = nullptr;
29 
GetOrCreateGlobalContext()30 BCCContext *BCCContext::GetOrCreateGlobalContext() {
31   if (GlobalContext == nullptr) {
32     GlobalContext = new (std::nothrow) BCCContext();
33     if (GlobalContext == nullptr) {
34       ALOGE("Out of memory when allocating global BCCContext!");
35     }
36   }
37   return GlobalContext;
38 }
39 
DestroyGlobalContext()40 void BCCContext::DestroyGlobalContext() {
41   delete GlobalContext;
42   GlobalContext = nullptr;
43 }
44 
BCCContext()45 BCCContext::BCCContext() : mImpl(new BCCContextImpl(*this)) { }
46 
~BCCContext()47 BCCContext::~BCCContext() {
48   delete mImpl;
49   if (this == GlobalContext) {
50     // We're deleting the context returned from GetOrCreateGlobalContext().
51     // Reset the GlobalContext.
52     GlobalContext = nullptr;
53   }
54 }
55 
addSource(Source & pSource)56 void BCCContext::addSource(Source &pSource)
57 { mImpl->mOwnSources.insert(&pSource); }
58 
removeSource(Source & pSource)59 void BCCContext::removeSource(Source &pSource)
60 { mImpl->mOwnSources.erase(&pSource); }
61 
getLLVMContext()62 llvm::LLVMContext &BCCContext::getLLVMContext()
63 { return mImpl->mLLVMContext; }
64 
getLLVMContext() const65 const llvm::LLVMContext &BCCContext::getLLVMContext() const
66 { return mImpl->mLLVMContext; }
67