b6dbe9a99c
Summary: It defined a couple of types (condition_t) which we don't use anymore, as we have c++11 goodies now. I remove these definitions. Also it unnecessarily included a couple of headers which weren't necessary for it's operation. I remove these, and place the includes in the relevant files (usually .cpp, usually in Host code) which use them. This allows us to reduce namespace pollution in most of the lldb files which don't need the OS-specific definitions. Reviewers: zturner, jingham Subscribers: ki.stfu, lldb-commits Differential Revision: https://reviews.llvm.org/D35113 llvm-svn: 308304
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
//===-- LockFilePosix.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/posix/LockFilePosix.h"
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#include <fcntl.h>
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#include <unistd.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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Status fileLock(int fd, int cmd, int lock_type, const uint64_t start,
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const uint64_t len) {
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struct flock fl;
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fl.l_type = lock_type;
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fl.l_whence = SEEK_SET;
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fl.l_start = start;
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fl.l_len = len;
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fl.l_pid = ::getpid();
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Status error;
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if (::fcntl(fd, cmd, &fl) == -1)
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error.SetErrorToErrno();
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return error;
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}
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} // namespace
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LockFilePosix::LockFilePosix(int fd) : LockFileBase(fd) {}
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LockFilePosix::~LockFilePosix() { Unlock(); }
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Status LockFilePosix::DoWriteLock(const uint64_t start, const uint64_t len) {
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return fileLock(m_fd, F_SETLKW, F_WRLCK, start, len);
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}
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Status LockFilePosix::DoTryWriteLock(const uint64_t start, const uint64_t len) {
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return fileLock(m_fd, F_SETLK, F_WRLCK, start, len);
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}
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Status LockFilePosix::DoReadLock(const uint64_t start, const uint64_t len) {
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return fileLock(m_fd, F_SETLKW, F_RDLCK, start, len);
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}
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Status LockFilePosix::DoTryReadLock(const uint64_t start, const uint64_t len) {
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return fileLock(m_fd, F_SETLK, F_RDLCK, start, len);
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}
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Status LockFilePosix::DoUnlock() {
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return fileLock(m_fd, F_SETLK, F_UNLCK, m_start, m_len);
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}
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