diff options
Diffstat (limited to 'lib/cryptopp/winpipes.cpp')
| -rw-r--r-- | lib/cryptopp/winpipes.cpp | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/lib/cryptopp/winpipes.cpp b/lib/cryptopp/winpipes.cpp deleted file mode 100644 index 1c2e047b0..000000000 --- a/lib/cryptopp/winpipes.cpp +++ /dev/null @@ -1,205 +0,0 @@ -// winpipes.cpp - written and placed in the public domain by Wei Dai - -#include "pch.h" -#include "winpipes.h" - -#ifdef WINDOWS_PIPES_AVAILABLE - -#include "wait.h" - -NAMESPACE_BEGIN(CryptoPP) - -WindowsHandle::WindowsHandle(HANDLE h, bool own) - : m_h(h), m_own(own) -{ -} - -WindowsHandle::~WindowsHandle() -{ - if (m_own) - { - try - { - CloseHandle(); - } - catch (...) - { - } - } -} - -bool WindowsHandle::HandleValid() const -{ - return m_h && m_h != INVALID_HANDLE_VALUE; -} - -void WindowsHandle::AttachHandle(HANDLE h, bool own) -{ - if (m_own) - CloseHandle(); - - m_h = h; - m_own = own; - HandleChanged(); -} - -HANDLE WindowsHandle::DetachHandle() -{ - HANDLE h = m_h; - m_h = INVALID_HANDLE_VALUE; - HandleChanged(); - return h; -} - -void WindowsHandle::CloseHandle() -{ - if (m_h != INVALID_HANDLE_VALUE) - { - ::CloseHandle(m_h); - m_h = INVALID_HANDLE_VALUE; - HandleChanged(); - } -} - -// ******************************************************** - -void WindowsPipe::HandleError(const char *operation) const -{ - DWORD err = GetLastError(); - throw Err(GetHandle(), operation, err); -} - -WindowsPipe::Err::Err(HANDLE s, const std::string& operation, int error) - : OS_Error(IO_ERROR, "WindowsPipe: " + operation + " operation failed with error 0x" + IntToString(error, 16), operation, error) - , m_h(s) -{ -} - -// ************************************************************* - -WindowsPipeReceiver::WindowsPipeReceiver() - : m_resultPending(false), m_eofReceived(false) -{ - m_event.AttachHandle(CreateEvent(NULL, true, false, NULL), true); - CheckAndHandleError("CreateEvent", m_event.HandleValid()); - memset(&m_overlapped, 0, sizeof(m_overlapped)); - m_overlapped.hEvent = m_event; -} - -bool WindowsPipeReceiver::Receive(byte* buf, size_t bufLen) -{ - assert(!m_resultPending && !m_eofReceived); - - HANDLE h = GetHandle(); - // don't queue too much at once, or we might use up non-paged memory - if (ReadFile(h, buf, UnsignedMin((DWORD)128*1024, bufLen), &m_lastResult, &m_overlapped)) - { - if (m_lastResult == 0) - m_eofReceived = true; - } - else - { - switch (GetLastError()) - { - default: - CheckAndHandleError("ReadFile", false); - case ERROR_BROKEN_PIPE: - case ERROR_HANDLE_EOF: - m_lastResult = 0; - m_eofReceived = true; - break; - case ERROR_IO_PENDING: - m_resultPending = true; - } - } - return !m_resultPending; -} - -void WindowsPipeReceiver::GetWaitObjects(WaitObjectContainer &container, CallStack const& callStack) -{ - if (m_resultPending) - container.AddHandle(m_event, CallStack("WindowsPipeReceiver::GetWaitObjects() - result pending", &callStack)); - else if (!m_eofReceived) - container.SetNoWait(CallStack("WindowsPipeReceiver::GetWaitObjects() - result ready", &callStack)); -} - -unsigned int WindowsPipeReceiver::GetReceiveResult() -{ - if (m_resultPending) - { - HANDLE h = GetHandle(); - if (GetOverlappedResult(h, &m_overlapped, &m_lastResult, false)) - { - if (m_lastResult == 0) - m_eofReceived = true; - } - else - { - switch (GetLastError()) - { - default: - CheckAndHandleError("GetOverlappedResult", false); - case ERROR_BROKEN_PIPE: - case ERROR_HANDLE_EOF: - m_lastResult = 0; - m_eofReceived = true; - } - } - m_resultPending = false; - } - return m_lastResult; -} - -// ************************************************************* - -WindowsPipeSender::WindowsPipeSender() - : m_resultPending(false), m_lastResult(0) -{ - m_event.AttachHandle(CreateEvent(NULL, true, false, NULL), true); - CheckAndHandleError("CreateEvent", m_event.HandleValid()); - memset(&m_overlapped, 0, sizeof(m_overlapped)); - m_overlapped.hEvent = m_event; -} - -void WindowsPipeSender::Send(const byte* buf, size_t bufLen) -{ - DWORD written = 0; - HANDLE h = GetHandle(); - // don't queue too much at once, or we might use up non-paged memory - if (WriteFile(h, buf, UnsignedMin((DWORD)128*1024, bufLen), &written, &m_overlapped)) - { - m_resultPending = false; - m_lastResult = written; - } - else - { - if (GetLastError() != ERROR_IO_PENDING) - CheckAndHandleError("WriteFile", false); - - m_resultPending = true; - } -} - -void WindowsPipeSender::GetWaitObjects(WaitObjectContainer &container, CallStack const& callStack) -{ - if (m_resultPending) - container.AddHandle(m_event, CallStack("WindowsPipeSender::GetWaitObjects() - result pending", &callStack)); - else - container.SetNoWait(CallStack("WindowsPipeSender::GetWaitObjects() - result ready", &callStack)); -} - -unsigned int WindowsPipeSender::GetSendResult() -{ - if (m_resultPending) - { - HANDLE h = GetHandle(); - BOOL result = GetOverlappedResult(h, &m_overlapped, &m_lastResult, false); - CheckAndHandleError("GetOverlappedResult", result); - m_resultPending = false; - } - return m_lastResult; -} - -NAMESPACE_END - -#endif |