1 files changed, 90 insertions, 0 deletions
diff --git a/lldb/source/Host/common/FileAction.cpp b/lldb/source/Host/common/FileAction.cpp
new file mode 100644
index 00000000000..97367049abb
--- /dev/null
+++ b/lldb/source/Host/common/FileAction.cpp
@@ -0,0 +1,90 @@
+//===-- FileAction.cpp ------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <fcntl.h>
+
+#include "lldb/Host/FileAction.h"
+#include "lldb/Host/PosixApi.h"
+#include "lldb/Utility/Stream.h"
+
+using namespace lldb_private;
+
+//----------------------------------------------------------------------------
+// FileAction member functions
+//----------------------------------------------------------------------------
+
+FileAction::FileAction()
+    : m_action(eFileActionNone), m_fd(-1), m_arg(-1), m_file_spec() {}
+
+void FileAction::Clear() {
+  m_action = eFileActionNone;
+  m_fd = -1;
+  m_arg = -1;
+  m_file_spec.Clear();
+}
+
+llvm::StringRef FileAction::GetPath() const { return m_file_spec.GetCString(); }
+
+const FileSpec &FileAction::GetFileSpec() const { return m_file_spec; }
+
+bool FileAction::Open(int fd, const FileSpec &file_spec, bool read,
+                      bool write) {
+  if ((read || write) && fd >= 0 && file_spec) {
+    m_action = eFileActionOpen;
+    m_fd = fd;
+    if (read && write)
+      m_arg = O_NOCTTY | O_CREAT | O_RDWR;
+    else if (read)
+      m_arg = O_NOCTTY | O_RDONLY;
+    else
+      m_arg = O_NOCTTY | O_CREAT | O_WRONLY;
+    m_file_spec = file_spec;
+    return true;
+  } else {
+    Clear();
+  }
+  return false;
+}
+
+bool FileAction::Close(int fd) {
+  Clear();
+  if (fd >= 0) {
+    m_action = eFileActionClose;
+    m_fd = fd;
+  }
+  return m_fd >= 0;
+}
+
+bool FileAction::Duplicate(int fd, int dup_fd) {
+  Clear();
+  if (fd >= 0 && dup_fd >= 0) {
+    m_action = eFileActionDuplicate;
+    m_fd = fd;
+    m_arg = dup_fd;
+  }
+  return m_fd >= 0;
+}
+
+void FileAction::Dump(Stream &stream) const {
+  stream.PutCString("file action: ");
+  switch (m_action) {
+  case eFileActionClose:
+    stream.Printf("close fd %d", m_fd);
+    break;
+  case eFileActionDuplicate:
+    stream.Printf("duplicate fd %d to %d", m_fd, m_arg);
+    break;
+  case eFileActionNone:
+    stream.PutCString("no action");
+    break;
+  case eFileActionOpen:
+    stream.Printf("open fd %d with '%s', OFLAGS = 0x%x", m_fd,
+                  m_file_spec.GetCString(), m_arg);
+    break;
+  }
+}