1//===-- FileAction.cpp ----------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include <fcntl.h>
10
11#include "lldb/Host/FileAction.h"
12#include "lldb/Host/PosixApi.h"
13#include "lldb/Utility/Stream.h"
14
15using namespace lldb_private;
16
17// FileAction member functions
18
19FileAction::FileAction() : m_file_spec() {}
20
21void FileAction::Clear() {
22 m_action = eFileActionNone;
23 m_fd = -1;
24 m_arg = -1;
25 m_file_spec.Clear();
26}
27
28llvm::StringRef FileAction::GetPath() const {
29 return m_file_spec.GetPathAsConstString().AsCString();
30}
31
32const FileSpec &FileAction::GetFileSpec() const { return m_file_spec; }
33
34bool FileAction::Open(int fd, const FileSpec &file_spec, bool read,
35 bool write) {
36 if ((read || write) && fd >= 0 && file_spec) {
37 m_action = eFileActionOpen;
38 m_fd = fd;
39 if (read && write)
40 m_arg = O_NOCTTY | O_CREAT | O_RDWR;
41 else if (read)
42 m_arg = O_NOCTTY | O_RDONLY;
43 else
44 m_arg = O_NOCTTY | O_CREAT | O_WRONLY | O_TRUNC;
45 m_file_spec = file_spec;
46 return true;
47 } else {
48 Clear();
49 }
50 return false;
51}
52
53bool FileAction::Close(int fd) {
54 Clear();
55 if (fd >= 0) {
56 m_action = eFileActionClose;
57 m_fd = fd;
58 }
59 return m_fd >= 0;
60}
61
62bool FileAction::Duplicate(int fd, int dup_fd) {
63 Clear();
64 if (fd >= 0 && dup_fd >= 0) {
65 m_action = eFileActionDuplicate;
66 m_fd = fd;
67 m_arg = dup_fd;
68 }
69 return m_fd >= 0;
70}
71
72void FileAction::Dump(Stream &stream) const {
73 stream.PutCString(cstr: "file action: ");
74 switch (m_action) {
75 case eFileActionClose:
76 stream.Printf(format: "close fd %d", m_fd);
77 break;
78 case eFileActionDuplicate:
79 stream.Printf(format: "duplicate fd %d to %d", m_fd, m_arg);
80 break;
81 case eFileActionNone:
82 stream.PutCString(cstr: "no action");
83 break;
84 case eFileActionOpen:
85 stream.Printf(format: "open fd %d with '%s', OFLAGS = 0x%x", m_fd,
86 m_file_spec.GetPath().c_str(), m_arg);
87 break;
88 }
89}
90

source code of lldb/source/Host/common/FileAction.cpp