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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/background-parsing-task.h" | 5 #include "src/background-parsing-task.h" |
6 | 6 |
7 #include "src/debug/debug.h" | 7 #include "src/debug/debug.h" |
8 #include "src/parsing/parser.h" | 8 #include "src/parsing/parser.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
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56 } | 56 } |
57 | 57 |
58 | 58 |
59 void BackgroundParsingTask::Run() { | 59 void BackgroundParsingTask::Run() { |
60 DisallowHeapAllocation no_allocation; | 60 DisallowHeapAllocation no_allocation; |
61 DisallowHandleAllocation no_handles; | 61 DisallowHandleAllocation no_handles; |
62 DisallowHandleDereference no_deref; | 62 DisallowHandleDereference no_deref; |
63 | 63 |
64 // Reset the stack limit of the parser to reflect correctly that we're on a | 64 // Reset the stack limit of the parser to reflect correctly that we're on a |
65 // background thread. | 65 // background thread. |
66 uintptr_t stack_limit = | 66 uintptr_t stack_limit = GetCurrentStackPosition() - stack_size_ * KB; |
67 reinterpret_cast<uintptr_t>(&stack_limit) - stack_size_ * KB; | |
68 source_->parser->set_stack_limit(stack_limit); | 67 source_->parser->set_stack_limit(stack_limit); |
69 | 68 |
70 // Nullify the Isolate temporarily so that the background parser doesn't | 69 // Nullify the Isolate temporarily so that the background parser doesn't |
71 // accidentally use it. | 70 // accidentally use it. |
72 Isolate* isolate = source_->info->isolate(); | 71 Isolate* isolate = source_->info->isolate(); |
73 source_->info->set_isolate(nullptr); | 72 source_->info->set_isolate(nullptr); |
74 | 73 |
75 source_->parser->ParseOnBackground(source_->info.get()); | 74 source_->parser->ParseOnBackground(source_->info.get()); |
76 | 75 |
77 if (script_data_ != nullptr) { | 76 if (script_data_ != nullptr) { |
78 source_->cached_data.reset(new ScriptCompiler::CachedData( | 77 source_->cached_data.reset(new ScriptCompiler::CachedData( |
79 script_data_->data(), script_data_->length(), | 78 script_data_->data(), script_data_->length(), |
80 ScriptCompiler::CachedData::BufferOwned)); | 79 ScriptCompiler::CachedData::BufferOwned)); |
81 script_data_->ReleaseDataOwnership(); | 80 script_data_->ReleaseDataOwnership(); |
82 delete script_data_; | 81 delete script_data_; |
83 script_data_ = nullptr; | 82 script_data_ = nullptr; |
84 } | 83 } |
85 source_->info->set_isolate(isolate); | 84 source_->info->set_isolate(isolate); |
86 } | 85 } |
87 } // namespace internal | 86 } // namespace internal |
88 } // namespace v8 | 87 } // namespace v8 |
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