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 3 // found in the LICENSE file. 4 5 #ifndef V8_LIBPLATFORM_LIBPLATFORM_H_ 6 #define V8_LIBPLATFORM_LIBPLATFORM_H_ 7 8 #include "libplatform/libplatform-export.h" 9 #include "libplatform/v8-tracing.h" 10 #include "v8-platform.h" // NOLINT(build/include) 11 12 namespace v8 { 13 namespace platform { 14 15 /** 16 * Returns a new instance of the default v8::Platform implementation. 17 * 18 * The caller will take ownership of the returned pointer. |thread_pool_size| 19 * is the number of worker threads to allocate for background jobs. If a value 20 * of zero is passed, a suitable default based on the current number of 21 * processors online will be chosen. 22 */ 23 V8_PLATFORM_EXPORT v8::Platform* CreateDefaultPlatform( 24 int thread_pool_size = 0); 25 26 /** 27 * Pumps the message loop for the given isolate. 28 * 29 * The caller has to make sure that this is called from the right thread. 30 * Returns true if a task was executed, and false otherwise. This call does 31 * not block if no task is pending. The |platform| has to be created using 32 * |CreateDefaultPlatform|. 33 */ 34 V8_PLATFORM_EXPORT bool PumpMessageLoop(v8::Platform* platform, 35 v8::Isolate* isolate); 36 37 /** 38 * Attempts to set the tracing controller for the given platform. 39 * 40 * The |platform| has to be created using |CreateDefaultPlatform|. 41 */ 42 V8_PLATFORM_EXPORT void SetTracingController( 43 v8::Platform* platform, 44 v8::platform::tracing::TracingController* tracing_controller); 45 46 } // namespace platform 47 } // namespace v8 48 49 #endif // V8_LIBPLATFORM_LIBPLATFORM_H_ 50