eef758e949
Summary: These classes describe the details of the process we are about to launch, and so they are naturally used by the launching code in the Host module. Previously they were present in Target because that is the most important (but by far not the only) user of the launching code. Since the launching code has other customers, must of which do not care about Targets, it makes sense to move these classes to the Host layer, next to the launching code. This move reduces the number of times that Target is included from host to 8 (it used to be 14). Reviewers: zturner, clayborg, jingham, davide, teemperor Subscribers: emaste, mgorny, lldb-commits Differential Revision: https://reviews.llvm.org/D56602 llvm-svn: 353047
91 lines
2.3 KiB
C++
91 lines
2.3 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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//----------------------------------------------------------------------------
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// FileAction member functions
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//----------------------------------------------------------------------------
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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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