/* * Copyright (C) 2020 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #if OS(DARWIN) #include <wtf/Lock.h> #include <wtf/PrintStream.h> #include <wtf/RecursiveLockAdapter.h> #include <wtf/text/CString.h> #include <wtf/Vector.h> #include <os/log.h> namespace WTF { class WTF_EXPORT_PRIVATE OSLogPrintStream final : public PrintStream { public: OSLogPrintStream(os_log_t, os_log_type_t); ~OSLogPrintStream() final; static std::unique_ptr<OSLogPrintStream> open(const char* subsystem, const char* category, os_log_type_t = OS_LOG_TYPE_DEFAULT); void vprintf(const char* format, va_list) final WTF_ATTRIBUTE_PRINTF(2, 0); private: os_log_t m_log; os_log_type_t m_logType; Lock m_stringLock; // We need a buffer because os_log doesn't wait for a new line to print the characters. CString m_string; size_t m_offset { 0 }; }; } // namespace WTF using WTF::OSLogPrintStream; #endif