forked from OSchip/llvm-project
54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
//===--------------------- KQueue.h -----------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef utility_KQueue_h_
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#define utility_KQueue_h_
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#if defined(__APPLE__)
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#define LLDB_USE_KQUEUES
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#endif
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#ifdef LLDB_USE_KQUEUES
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#include <sys/event.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include "lldb/lldb-defines.h"
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namespace lldb_private {
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class KQueue {
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public:
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KQueue() : m_fd(-1) {}
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~KQueue() { Close(); }
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bool IsValid() const { return m_fd >= 0; }
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int GetFD(bool can_create);
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int Close();
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bool AddFDEvent(int fd, bool read, bool write, bool vnode);
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int WaitForEvents(
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struct kevent *events, int num_events, Error &error,
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uint32_t timeout_usec = UINT32_MAX); // UINT32_MAX means infinite timeout
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protected:
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int m_fd; // The kqueue fd
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};
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} // namespace lldb_private
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#endif // #ifdef LLDB_USE_KQUEUES
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#endif // #ifndef utility_KQueue_h_
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