From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- ipc/chromium/src/base/platform_thread.h | 88 +++++++++++++++++++++++++++++++++ 1 file changed, 88 insertions(+) create mode 100644 ipc/chromium/src/base/platform_thread.h (limited to 'ipc/chromium/src/base/platform_thread.h') diff --git a/ipc/chromium/src/base/platform_thread.h b/ipc/chromium/src/base/platform_thread.h new file mode 100644 index 0000000000..f3a65e8797 --- /dev/null +++ b/ipc/chromium/src/base/platform_thread.h @@ -0,0 +1,88 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// WARNING: You should *NOT* be using this class directly. PlatformThread is +// the low-level platform-specific abstraction to the OS's threading interface. +// You should instead be using a message-loop driven Thread, see thread.h. + +#ifndef BASE_PLATFORM_THREAD_H_ +#define BASE_PLATFORM_THREAD_H_ + +#include "base/basictypes.h" + +// PlatformThreadHandle should not be assumed to be a numeric type, since the +// standard intends to allow pthread_t to be a structure. This means you +// should not initialize it to a value, like 0. If it's a member variable, the +// constructor can safely "value initialize" using () in the initializer list. +#if defined(XP_WIN) +# include +typedef DWORD PlatformThreadId; +typedef void* PlatformThreadHandle; // HANDLE +#else +# include +typedef pthread_t PlatformThreadHandle; +# if defined(XP_LINUX) || defined(XP_OPENBSD) || defined(XP_SOLARIS) || \ + defined(__GLIBC__) +# include +typedef pid_t PlatformThreadId; +# elif defined(__DragonFly__) || defined(XP_FREEBSD) || defined(XP_NETBSD) +# include +typedef lwpid_t PlatformThreadId; +# elif defined(XP_DARWIN) +# include +typedef mach_port_t PlatformThreadId; +# endif +#endif + +// A namespace for low-level thread functions. +class PlatformThread { + public: + // Gets the current thread id, which may be useful for logging purposes. + static PlatformThreadId CurrentId(); + + // Yield the current thread so another thread can be scheduled. + static void YieldCurrentThread(); + + // Sleeps for the specified duration (units are milliseconds). + static void Sleep(int duration_ms); + + // Sets the thread name visible to a debugger. This has no effect otherwise. + static void SetName(const char* name); + + // Implement this interface to run code on a background thread. Your + // ThreadMain method will be called on the newly created thread. + class Delegate { + public: + virtual ~Delegate() {} + virtual void ThreadMain() = 0; + }; + + // Creates a new thread. The |stack_size| parameter can be 0 to indicate + // that the default stack size should be used. Upon success, + // |*thread_handle| will be assigned a handle to the newly created thread, + // and |delegate|'s ThreadMain method will be executed on the newly created + // thread. + // NOTE: When you are done with the thread handle, you must call Join to + // release system resources associated with the thread. You must ensure that + // the Delegate object outlives the thread. + static bool Create(size_t stack_size, Delegate* delegate, + PlatformThreadHandle* thread_handle); + + // CreateNonJoinable() does the same thing as Create() except the thread + // cannot be Join()'d. Therefore, it also does not output a + // PlatformThreadHandle. + static bool CreateNonJoinable(size_t stack_size, Delegate* delegate); + + // Joins with a thread created via the Create function. This function blocks + // the caller until the designated thread exits. This will invalidate + // |thread_handle|. + static void Join(PlatformThreadHandle thread_handle); + + private: + DISALLOW_IMPLICIT_CONSTRUCTORS(PlatformThread); +}; + +#endif // BASE_PLATFORM_THREAD_H_ -- cgit v1.2.3