================ @@ -0,0 +1,113 @@ +//===----------------------------------------------------------------------===// +// +// 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 "lldb/Host/windows/PseudoConsole.h" + +#include <mutex> + +#include "lldb/Host/windows/windows.h" + +#include "llvm/Support/Errc.h" +#include "llvm/Support/Errno.h" + +using namespace lldb_private; + +typedef HRESULT(WINAPI *CreatePseudoConsole_t)(COORD size, HANDLE hInput, + HANDLE hOutput, DWORD dwFlags, + HPCON *phPC); + +typedef VOID(WINAPI *ClosePseudoConsole_t)(HPCON hPC); + +struct Kernel32 { + Kernel32() { + hModule = LoadLibraryW(L"kernel32.dll"); + CreatePseudoConsole_ = + (CreatePseudoConsole_t)GetProcAddress(hModule, "CreatePseudoConsole"); + ClosePseudoConsole_ = + (ClosePseudoConsole_t)GetProcAddress(hModule, "ClosePseudoConsole"); + isAvailable = (CreatePseudoConsole_ && ClosePseudoConsole_); + } + + HRESULT CreatePseudoConsole(COORD size, HANDLE hInput, HANDLE hOutput, + DWORD dwFlags, HPCON *phPC) { + return CreatePseudoConsole_(size, hInput, hOutput, dwFlags, phPC); + } + + VOID ClosePseudoConsole(HPCON hPC) { return ClosePseudoConsole_(hPC); } + + bool IsAvailable() { return isAvailable; } + +private: + HMODULE hModule; + CreatePseudoConsole_t CreatePseudoConsole_; + ClosePseudoConsole_t ClosePseudoConsole_; + bool isAvailable; +}; + +static Kernel32 kernel32; + +llvm::Error PseudoConsole::OpenPseudoConsole() { + if (!kernel32.IsAvailable()) + return llvm::make_error<llvm::StringError>("ConPTY is not available", + llvm::errc::io_error); + HRESULT hr; + HANDLE hInputRead = INVALID_HANDLE_VALUE; + HANDLE hInputWrite = INVALID_HANDLE_VALUE; + HANDLE hOutputRead = INVALID_HANDLE_VALUE; + HANDLE hOutputWrite = INVALID_HANDLE_VALUE; + + wchar_t pipe_name[MAX_PATH]; + swprintf(pipe_name, MAX_PATH, L"\\\\.\\pipe\\conpty-lldb-%d-%p", + GetCurrentProcessId(), this); + + // A 4096 bytes buffer should be large enough for the majority of console + // burst outputs. + hOutputRead = + CreateNamedPipeW(pipe_name, PIPE_ACCESS_INBOUND | FILE_FLAG_OVERLAPPED, ---------------- ashgti wrote:
This is similar to PipeWindows::CreateNew, https://github.com/llvm/llvm-project/blob/05218825ee46bdb5454c633139ead06bbb1bb6bd/lldb/source/Host/windows/PipeWindows.cpp#L80 Should we use a WindowsPipe here instead of creating our own and passing that to the CreatePseudoConsole call? https://github.com/llvm/llvm-project/pull/168729 _______________________________________________ lldb-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
