forked from OSchip/llvm-project
89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
//===-- FileAction.cpp ------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include <fcntl.h>
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#include "lldb/Host/FileAction.h"
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#include "lldb/Host/PosixApi.h"
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#include "lldb/Utility/Stream.h"
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using namespace lldb_private;
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// FileAction member functions
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FileAction::FileAction()
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: m_action(eFileActionNone), m_fd(-1), m_arg(-1), m_file_spec() {}
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void FileAction::Clear() {
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m_action = eFileActionNone;
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m_fd = -1;
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m_arg = -1;
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m_file_spec.Clear();
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}
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llvm::StringRef FileAction::GetPath() const { return m_file_spec.GetCString(); }
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const FileSpec &FileAction::GetFileSpec() const { return m_file_spec; }
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bool FileAction::Open(int fd, const FileSpec &file_spec, bool read,
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bool write) {
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if ((read || write) && fd >= 0 && file_spec) {
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m_action = eFileActionOpen;
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m_fd = fd;
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if (read && write)
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m_arg = O_NOCTTY | O_CREAT | O_RDWR;
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else if (read)
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m_arg = O_NOCTTY | O_RDONLY;
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else
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m_arg = O_NOCTTY | O_CREAT | O_WRONLY;
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m_file_spec = file_spec;
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return true;
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} else {
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Clear();
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}
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return false;
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}
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bool FileAction::Close(int fd) {
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Clear();
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if (fd >= 0) {
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m_action = eFileActionClose;
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m_fd = fd;
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}
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return m_fd >= 0;
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}
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bool FileAction::Duplicate(int fd, int dup_fd) {
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Clear();
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if (fd >= 0 && dup_fd >= 0) {
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m_action = eFileActionDuplicate;
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m_fd = fd;
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m_arg = dup_fd;
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}
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return m_fd >= 0;
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}
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void FileAction::Dump(Stream &stream) const {
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stream.PutCString("file action: ");
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switch (m_action) {
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case eFileActionClose:
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stream.Printf("close fd %d", m_fd);
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break;
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case eFileActionDuplicate:
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stream.Printf("duplicate fd %d to %d", m_fd, m_arg);
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break;
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case eFileActionNone:
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stream.PutCString("no action");
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break;
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case eFileActionOpen:
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stream.Printf("open fd %d with '%s', OFLAGS = 0x%x", m_fd,
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m_file_spec.GetCString(), m_arg);
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break;
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}
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}
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