1351290Sdim//===-- FileAction.cpp ------------------------------------------*- C++ -*-===// 2351290Sdim// 3351290Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4351290Sdim// See https://llvm.org/LICENSE.txt for license information. 5351290Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6351290Sdim// 7351290Sdim//===----------------------------------------------------------------------===// 8351290Sdim 9351290Sdim#include <fcntl.h> 10351290Sdim 11351290Sdim#include "lldb/Host/FileAction.h" 12351290Sdim#include "lldb/Host/PosixApi.h" 13351290Sdim#include "lldb/Utility/Stream.h" 14351290Sdim 15351290Sdimusing namespace lldb_private; 16351290Sdim 17351290Sdim// FileAction member functions 18351290Sdim 19351290SdimFileAction::FileAction() 20351290Sdim : m_action(eFileActionNone), m_fd(-1), m_arg(-1), m_file_spec() {} 21351290Sdim 22351290Sdimvoid FileAction::Clear() { 23351290Sdim m_action = eFileActionNone; 24351290Sdim m_fd = -1; 25351290Sdim m_arg = -1; 26351290Sdim m_file_spec.Clear(); 27351290Sdim} 28351290Sdim 29351290Sdimllvm::StringRef FileAction::GetPath() const { return m_file_spec.GetCString(); } 30351290Sdim 31351290Sdimconst FileSpec &FileAction::GetFileSpec() const { return m_file_spec; } 32351290Sdim 33351290Sdimbool FileAction::Open(int fd, const FileSpec &file_spec, bool read, 34351290Sdim bool write) { 35351290Sdim if ((read || write) && fd >= 0 && file_spec) { 36351290Sdim m_action = eFileActionOpen; 37351290Sdim m_fd = fd; 38351290Sdim if (read && write) 39351290Sdim m_arg = O_NOCTTY | O_CREAT | O_RDWR; 40351290Sdim else if (read) 41351290Sdim m_arg = O_NOCTTY | O_RDONLY; 42351290Sdim else 43351290Sdim m_arg = O_NOCTTY | O_CREAT | O_WRONLY; 44351290Sdim m_file_spec = file_spec; 45351290Sdim return true; 46351290Sdim } else { 47351290Sdim Clear(); 48351290Sdim } 49351290Sdim return false; 50351290Sdim} 51351290Sdim 52351290Sdimbool FileAction::Close(int fd) { 53351290Sdim Clear(); 54351290Sdim if (fd >= 0) { 55351290Sdim m_action = eFileActionClose; 56351290Sdim m_fd = fd; 57351290Sdim } 58351290Sdim return m_fd >= 0; 59351290Sdim} 60351290Sdim 61351290Sdimbool FileAction::Duplicate(int fd, int dup_fd) { 62351290Sdim Clear(); 63351290Sdim if (fd >= 0 && dup_fd >= 0) { 64351290Sdim m_action = eFileActionDuplicate; 65351290Sdim m_fd = fd; 66351290Sdim m_arg = dup_fd; 67351290Sdim } 68351290Sdim return m_fd >= 0; 69351290Sdim} 70351290Sdim 71351290Sdimvoid FileAction::Dump(Stream &stream) const { 72351290Sdim stream.PutCString("file action: "); 73351290Sdim switch (m_action) { 74351290Sdim case eFileActionClose: 75351290Sdim stream.Printf("close fd %d", m_fd); 76351290Sdim break; 77351290Sdim case eFileActionDuplicate: 78351290Sdim stream.Printf("duplicate fd %d to %d", m_fd, m_arg); 79351290Sdim break; 80351290Sdim case eFileActionNone: 81351290Sdim stream.PutCString("no action"); 82351290Sdim break; 83351290Sdim case eFileActionOpen: 84351290Sdim stream.Printf("open fd %d with '%s', OFLAGS = 0x%x", m_fd, 85351290Sdim m_file_spec.GetCString(), m_arg); 86351290Sdim break; 87351290Sdim } 88351290Sdim} 89