Siva Annamalai
1e5eab3a14
- cache builtin_lib in IsolateData so that the cached value can be used withouit having to call Builtin::LoadAndCheckLibrary which creates new string objects everytime it is called. Review URL: https://codereview.chromium.org/1663963002 .
83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef BIN_ISOLATE_DATA_H_
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#define BIN_ISOLATE_DATA_H_
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#include "include/dart_api.h"
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#include "platform/assert.h"
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#include "platform/globals.h"
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namespace dart {
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namespace bin {
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// Forward declaration.
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class EventHandler;
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// Data associated with every isolate in the standalone VM
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// embedding. This is used to free external resources for each isolate
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// when the isolate shuts down.
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class IsolateData {
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public:
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IsolateData(const char* url,
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const char* package_root,
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const char* packages_file)
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: script_url((url != NULL) ? strdup(url) : NULL),
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package_root(NULL),
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packages_file(NULL),
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udp_receive_buffer(NULL),
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load_async_id(-1),
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builtin_lib_(NULL) {
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if (package_root != NULL) {
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ASSERT(packages_file == NULL);
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this->package_root = strdup(package_root);
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} else if (packages_file != NULL) {
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this->packages_file = strdup(packages_file);
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}
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}
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~IsolateData() {
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free(script_url);
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script_url = NULL;
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free(package_root);
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package_root = NULL;
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free(packages_file);
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packages_file = NULL;
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free(udp_receive_buffer);
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udp_receive_buffer = NULL;
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if (builtin_lib_ != NULL) {
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Dart_DeletePersistentHandle(builtin_lib_);
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}
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}
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Dart_Handle builtin_lib() const {
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ASSERT(builtin_lib_ != NULL);
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ASSERT(!Dart_IsError(builtin_lib_));
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return builtin_lib_;
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}
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void set_builtin_lib(Dart_Handle lib) {
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ASSERT(builtin_lib_ == NULL);
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ASSERT(lib != NULL);
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ASSERT(!Dart_IsError(lib));
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builtin_lib_ = Dart_NewPersistentHandle(lib);
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}
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char* script_url;
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char* package_root;
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char* packages_file;
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uint8_t* udp_receive_buffer;
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int64_t load_async_id;
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private:
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Dart_Handle builtin_lib_;
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DISALLOW_COPY_AND_ASSIGN(IsolateData);
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};
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} // namespace bin
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} // namespace dart
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#endif // BIN_ISOLATE_DATA_H_
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