mirror of
https://github.com/opnsense/src.git
synced 2026-02-20 08:21:05 -05:00
1c3bbb013d
Notable upstream commits (upstream revision in parens): - Add a JSON producer to LLDB (228636) - Don't crash on bad DWARF expression (228729) - Add support of DWARFv3 DW_OP_form_tls_address (231342) - Assembly profiler for MIPS64 (232619) - Handle FreeBSD/arm64 core files (233273) - Read/Write register for MIPS64 (233685) - Rework LLDB system initialization (233758) - SysV ABI for aarch64 (236098) - MIPS software single stepping (236696) - FreeBSD/arm live debugging support (237303) - Assembly profiler for mips32 (237420) - Parse function name from DWARF DW_AT_abstract_origin (238307) - Improve LLDB prompt handling (238313) - Add real time signals support to FreeBSDSignals (238316) - Fix race in IOHandlerProcessSTDIO (238423) - MIPS64 Branch instruction emulation for SW single stepping (238820) - Improve OSType initialization in elf object file's arch_spec (239148) - Emulation of MIPS64 floating-point branch instructions (239996) - ABI Plugin for MIPS32 (239997) - ABI Plugin for MIPS64 (240123) - MIPS32 branch emulation and single stepping (240373) - Improve instruction emulation based stack unwinding on ARM (240533) - Add branch emulation to aarch64 instruction emulator (240769)
124 lines
2.4 KiB
C++
124 lines
2.4 KiB
C++
//===-- LockFileBase.cpp ----------------------------------------*- 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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#include "lldb/Host/LockFileBase.h"
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using namespace lldb;
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using namespace lldb_private;
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namespace
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{
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Error
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AlreadyLocked ()
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{
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return Error ("Already locked");
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}
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Error
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NotLocked ()
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{
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return Error ("Not locked");
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}
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}
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LockFileBase::LockFileBase (int fd) :
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m_fd (fd),
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m_locked (false),
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m_start (0),
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m_len (0)
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{
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}
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bool
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LockFileBase::IsLocked () const
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{
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return m_locked;
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}
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Error
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LockFileBase::WriteLock (const uint64_t start, const uint64_t len)
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{
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return DoLock ([&] (const uint64_t start, const uint64_t len)
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{
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return DoWriteLock (start, len);
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}, start, len);
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}
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Error
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LockFileBase::TryWriteLock (const uint64_t start, const uint64_t len)
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{
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return DoLock ([&] (const uint64_t start, const uint64_t len)
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{
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return DoTryWriteLock (start, len);
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}, start, len);
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}
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Error
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LockFileBase::ReadLock (const uint64_t start, const uint64_t len)
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{
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return DoLock ([&] (const uint64_t start, const uint64_t len)
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{
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return DoReadLock (start, len);
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}, start, len);
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}
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Error
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LockFileBase::TryReadLock (const uint64_t start, const uint64_t len)
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{
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return DoLock ([&] (const uint64_t start, const uint64_t len)
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{
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return DoTryReadLock (start, len);
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}, start, len);
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}
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Error
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LockFileBase::Unlock ()
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{
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if (!IsLocked ())
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return NotLocked ();
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const auto error = DoUnlock ();
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if (error.Success ())
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{
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m_locked = false;
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m_start = 0;
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m_len = 0;
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}
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return error;
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}
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bool
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LockFileBase::IsValidFile () const
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{
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return m_fd != -1;
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}
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Error
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LockFileBase::DoLock (const Locker &locker, const uint64_t start, const uint64_t len)
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{
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if (!IsValidFile ())
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return Error("File is invalid");
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if (IsLocked ())
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return AlreadyLocked ();
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const auto error = locker (start, len);
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if (error.Success ())
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{
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m_locked = true;
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m_start = start;
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m_len = len;
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}
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return error;
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}
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