1 files changed, 0 insertions, 323 deletions
diff --git a/source/Host/windows/ConnectionGenericFileWindows.cpp b/source/Host/windows/ConnectionGenericFileWindows.cpp
deleted file mode 100644
index e59e190dcb2d..000000000000
--- a/source/Host/windows/ConnectionGenericFileWindows.cpp
+++ /dev/null
@@ -1,323 +0,0 @@
-//===-- ConnectionGenericFileWindows.cpp ------------------------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "lldb/Host/windows/ConnectionGenericFileWindows.h"
-#include "lldb/Utility/Log.h"
-#include "lldb/Utility/Status.h"
-#include "lldb/Utility/Timeout.h"
-
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/ConvertUTF.h"
-
-using namespace lldb;
-using namespace lldb_private;
-
-namespace {
-// This is a simple helper class to package up the information needed to return
-// from a Read/Write operation function.  Since there is a lot of code to be
-// run before exit regardless of whether the operation succeeded or failed,
-// combined with many possible return paths, this is the cleanest way to
-// represent it.
-class ReturnInfo {
-public:
-  void Set(size_t bytes, ConnectionStatus status, DWORD error_code) {
-    m_error.SetError(error_code, eErrorTypeWin32);
-    m_bytes = bytes;
-    m_status = status;
-  }
-
-  void Set(size_t bytes, ConnectionStatus status, llvm::StringRef error_msg) {
-    m_error.SetErrorString(error_msg.data());
-    m_bytes = bytes;
-    m_status = status;
-  }
-
-  size_t GetBytes() const { return m_bytes; }
-  ConnectionStatus GetStatus() const { return m_status; }
-  const Status &GetError() const { return m_error; }
-
-private:
-  Status m_error;
-  size_t m_bytes;
-  ConnectionStatus m_status;
-};
-}
-
-ConnectionGenericFile::ConnectionGenericFile()
-    : m_file(INVALID_HANDLE_VALUE), m_owns_file(false) {
-  ::ZeroMemory(&m_overlapped, sizeof(m_overlapped));
-  ::ZeroMemory(&m_file_position, sizeof(m_file_position));
-  InitializeEventHandles();
-}
-
-ConnectionGenericFile::ConnectionGenericFile(lldb::file_t file, bool owns_file)
-    : m_file(file), m_owns_file(owns_file) {
-  ::ZeroMemory(&m_overlapped, sizeof(m_overlapped));
-  ::ZeroMemory(&m_file_position, sizeof(m_file_position));
-  InitializeEventHandles();
-}
-
-ConnectionGenericFile::~ConnectionGenericFile() {
-  if (m_owns_file && IsConnected())
-    ::CloseHandle(m_file);
-
-  ::CloseHandle(m_event_handles[kBytesAvailableEvent]);
-  ::CloseHandle(m_event_handles[kInterruptEvent]);
-}
-
-void ConnectionGenericFile::InitializeEventHandles() {
-  m_event_handles[kInterruptEvent] = CreateEvent(NULL, FALSE, FALSE, NULL);
-
-  // Note, we should use a manual reset event for the hEvent argument of the
-  // OVERLAPPED.  This is because both WaitForMultipleObjects and
-  // GetOverlappedResult (if you set the bWait argument to TRUE) will wait for
-  // the event to be signalled.  If we use an auto-reset event,
-  // WaitForMultipleObjects will reset the event, return successfully, and then
-  // GetOverlappedResult will block since the event is no longer signalled.
-  m_event_handles[kBytesAvailableEvent] =
-      ::CreateEvent(NULL, TRUE, FALSE, NULL);
-}
-
-bool ConnectionGenericFile::IsConnected() const {
-  return m_file && (m_file != INVALID_HANDLE_VALUE);
-}
-
-lldb::ConnectionStatus ConnectionGenericFile::Connect(llvm::StringRef path,
-                                                      Status *error_ptr) {
-  Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_CONNECTION));
-  if (log)
-    log->Printf("%p ConnectionGenericFile::Connect (url = '%s')",
-                static_cast<void *>(this), path.str().c_str());
-
-  if (!path.consume_front("file://")) {
-    if (error_ptr)
-      error_ptr->SetErrorStringWithFormat("unsupported connection URL: '%s'",
-                                          path.str().c_str());
-    return eConnectionStatusError;
-  }
-
-  if (IsConnected()) {
-    ConnectionStatus status = Disconnect(error_ptr);
-    if (status != eConnectionStatusSuccess)
-      return status;
-  }
-
-  // Open the file for overlapped access.  If it does not exist, create it.  We
-  // open it overlapped so that we can issue asynchronous reads and then use
-  // WaitForMultipleObjects to allow the read to be interrupted by an event
-  // object.
-  std::wstring wpath;
-  if (!llvm::ConvertUTF8toWide(path, wpath)) {
-    if (error_ptr)
-      error_ptr->SetError(1, eErrorTypeGeneric);
-    return eConnectionStatusError;
-  }
-  m_file = ::CreateFileW(wpath.c_str(), GENERIC_READ | GENERIC_WRITE,
-                         FILE_SHARE_READ, NULL, OPEN_ALWAYS,
-                         FILE_FLAG_OVERLAPPED, NULL);
-  if (m_file == INVALID_HANDLE_VALUE) {
-    if (error_ptr)
-      error_ptr->SetError(::GetLastError(), eErrorTypeWin32);
-    return eConnectionStatusError;
-  }
-
-  m_owns_file = true;
-  m_uri.assign(path);
-  return eConnectionStatusSuccess;
-}
-
-lldb::ConnectionStatus ConnectionGenericFile::Disconnect(Status *error_ptr) {
-  Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_CONNECTION));
-  if (log)
-    log->Printf("%p ConnectionGenericFile::Disconnect ()",
-                static_cast<void *>(this));
-
-  if (!IsConnected())
-    return eConnectionStatusSuccess;
-
-  // Reset the handle so that after we unblock any pending reads, subsequent
-  // calls to Read() will see a disconnected state.
-  HANDLE old_file = m_file;
-  m_file = INVALID_HANDLE_VALUE;
-
-  // Set the disconnect event so that any blocking reads unblock, then cancel
-  // any pending IO operations.
-  ::CancelIoEx(old_file, &m_overlapped);
-
-  // Close the file handle if we owned it, but don't close the event handles.
-  // We could always reconnect with the same Connection instance.
-  if (m_owns_file)
-    ::CloseHandle(old_file);
-
-  ::ZeroMemory(&m_file_position, sizeof(m_file_position));
-  m_owns_file = false;
-  m_uri.clear();
-  return eConnectionStatusSuccess;
-}
-
-size_t ConnectionGenericFile::Read(void *dst, size_t dst_len,
-                                   const Timeout<std::micro> &timeout,
-                                   lldb::ConnectionStatus &status,
-                                   Status *error_ptr) {
-  ReturnInfo return_info;
-  BOOL result = 0;
-  DWORD bytes_read = 0;
-
-  if (error_ptr)
-    error_ptr->Clear();
-
-  if (!IsConnected()) {
-    return_info.Set(0, eConnectionStatusNoConnection, ERROR_INVALID_HANDLE);
-    goto finish;
-  }
-
-  m_overlapped.hEvent = m_event_handles[kBytesAvailableEvent];
-
-  result = ::ReadFile(m_file, dst, dst_len, NULL, &m_overlapped);
-  if (result || ::GetLastError() == ERROR_IO_PENDING) {
-    if (!result) {
-      // The expected return path.  The operation is pending.  Wait for the
-      // operation to complete or be interrupted.
-      DWORD milliseconds =
-          timeout
-              ? std::chrono::duration_cast<std::chrono::milliseconds>(*timeout)
-                    .count()
-              : INFINITE;
-      DWORD wait_result =
-          ::WaitForMultipleObjects(llvm::array_lengthof(m_event_handles),
-                                   m_event_handles, FALSE, milliseconds);
-      // All of the events are manual reset events, so make sure we reset them
-      // to non-signalled.
-      switch (wait_result) {
-      case WAIT_OBJECT_0 + kBytesAvailableEvent:
-        break;
-      case WAIT_OBJECT_0 + kInterruptEvent:
-        return_info.Set(0, eConnectionStatusInterrupted, 0);
-        goto finish;
-      case WAIT_TIMEOUT:
-        return_info.Set(0, eConnectionStatusTimedOut, 0);
-        goto finish;
-      case WAIT_FAILED:
-        return_info.Set(0, eConnectionStatusError, ::GetLastError());
-        goto finish;
-      }
-    }
-    // The data is ready.  Figure out how much was read and return;
-    if (!::GetOverlappedResult(m_file, &m_overlapped, &bytes_read, FALSE)) {
-      DWORD result_error = ::GetLastError();
-      // ERROR_OPERATION_ABORTED occurs when someone calls Disconnect() during
-      // a blocking read. This triggers a call to CancelIoEx, which causes the
-      // operation to complete and the result to be ERROR_OPERATION_ABORTED.
-      if (result_error == ERROR_HANDLE_EOF ||
-          result_error == ERROR_OPERATION_ABORTED ||
-          result_error == ERROR_BROKEN_PIPE)
-        return_info.Set(bytes_read, eConnectionStatusEndOfFile, 0);
-      else
-        return_info.Set(bytes_read, eConnectionStatusError, result_error);
-    } else if (bytes_read == 0)
-      return_info.Set(bytes_read, eConnectionStatusEndOfFile, 0);
-    else
-      return_info.Set(bytes_read, eConnectionStatusSuccess, 0);
-
-    goto finish;
-  } else if (::GetLastError() == ERROR_BROKEN_PIPE) {
-    // The write end of a pipe was closed.  This is equivalent to EOF.
-    return_info.Set(0, eConnectionStatusEndOfFile, 0);
-  } else {
-    // An unknown error occurred.  Fail out.
-    return_info.Set(0, eConnectionStatusError, ::GetLastError());
-  }
-  goto finish;
-
-finish:
-  status = return_info.GetStatus();
-  if (error_ptr)
-    *error_ptr = return_info.GetError();
-
-  // kBytesAvailableEvent is a manual reset event.  Make sure it gets reset
-  // here so that any subsequent operations don't immediately see bytes
-  // available.
-  ResetEvent(m_event_handles[kBytesAvailableEvent]);
-
-  IncrementFilePointer(return_info.GetBytes());
-  Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_CONNECTION));
-  if (log) {
-    log->Printf("%p ConnectionGenericFile::Read()  handle = %p, dst = %p, "
-                "dst_len = %zu) => %zu, error = %s",
-                this, m_file, dst, dst_len, return_info.GetBytes(),
-                return_info.GetError().AsCString());
-  }
-
-  return return_info.GetBytes();
-}
-
-size_t ConnectionGenericFile::Write(const void *src, size_t src_len,
-                                    lldb::ConnectionStatus &status,
-                                    Status *error_ptr) {
-  ReturnInfo return_info;
-  DWORD bytes_written = 0;
-  BOOL result = 0;
-
-  if (error_ptr)
-    error_ptr->Clear();
-
-  if (!IsConnected()) {
-    return_info.Set(0, eConnectionStatusNoConnection, ERROR_INVALID_HANDLE);
-    goto finish;
-  }
-
-  m_overlapped.hEvent = NULL;
-
-  // Writes are not interruptible like reads are, so just block until it's
-  // done.
-  result = ::WriteFile(m_file, src, src_len, NULL, &m_overlapped);
-  if (!result && ::GetLastError() != ERROR_IO_PENDING) {
-    return_info.Set(0, eConnectionStatusError, ::GetLastError());
-    goto finish;
-  }
-
-  if (!::GetOverlappedResult(m_file, &m_overlapped, &bytes_written, TRUE)) {
-    return_info.Set(bytes_written, eConnectionStatusError, ::GetLastError());
-    goto finish;
-  }
-
-  return_info.Set(bytes_written, eConnectionStatusSuccess, 0);
-  goto finish;
-
-finish:
-  status = return_info.GetStatus();
-  if (error_ptr)
-    *error_ptr = return_info.GetError();
-
-  IncrementFilePointer(return_info.GetBytes());
-  Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_CONNECTION));
-  if (log) {
-    log->Printf("%p ConnectionGenericFile::Write()  handle = %p, src = %p, "
-                "src_len = %zu) => %zu, error = %s",
-                this, m_file, src, src_len, return_info.GetBytes(),
-                return_info.GetError().AsCString());
-  }
-  return return_info.GetBytes();
-}
-
-std::string ConnectionGenericFile::GetURI() { return m_uri; }
-
-bool ConnectionGenericFile::InterruptRead() {
-  return ::SetEvent(m_event_handles[kInterruptEvent]);
-}
-
-void ConnectionGenericFile::IncrementFilePointer(DWORD amount) {
-  LARGE_INTEGER old_pos;
-  old_pos.HighPart = m_overlapped.OffsetHigh;
-  old_pos.LowPart = m_overlapped.Offset;
-  old_pos.QuadPart += amount;
-  m_overlapped.Offset = old_pos.LowPart;
-  m_overlapped.OffsetHigh = old_pos.HighPart;
-}