Merge remote-tracking branch 'upstream/master' into libcallnr

1 files changed, 74 insertions, 0 deletions

diff --git a/src/nvim/os/os_win_console.c b/src/nvim/os/os_win_console.c
new file mode 100644
index 0000000000..18dcfeafa0
--- /dev/null
+++ b/src/nvim/os/os_win_console.c
@@ -0,0 +1,74 @@
+// This is an open source non-commercial project. Dear PVS-Studio, please check
+// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
+
+#include "nvim/vim.h"
+#include "nvim/os/input.h"
+#include "nvim/os/os_win_console.h"
+
+#ifdef INCLUDE_GENERATED_DECLARATIONS
+# include "os/os_win_console.c.generated.h"
+#endif
+
+
+int os_get_conin_fd(void)
+{
+  const HANDLE conin_handle = CreateFile("CONIN$",
+                                         GENERIC_READ | GENERIC_WRITE,
+                                         FILE_SHARE_READ | FILE_SHARE_WRITE,
+                                         (LPSECURITY_ATTRIBUTES)NULL,
+                                         OPEN_EXISTING, 0, (HANDLE)NULL);
+  assert(conin_handle != INVALID_HANDLE_VALUE);
+  int conin_fd = _open_osfhandle((intptr_t)conin_handle, _O_RDONLY);
+  assert(conin_fd != -1);
+  return conin_fd;
+}
+
+void os_replace_stdin_to_conin(void)
+{
+  close(STDIN_FILENO);
+  const int conin_fd = os_get_conin_fd();
+  assert(conin_fd == STDIN_FILENO);
+}
+
+void os_replace_stdout_and_stderr_to_conout(void)
+{
+  const HANDLE conout_handle =
+    CreateFile("CONOUT$",
+               GENERIC_READ | GENERIC_WRITE,
+               FILE_SHARE_READ | FILE_SHARE_WRITE,
+               (LPSECURITY_ATTRIBUTES)NULL,
+               OPEN_EXISTING, 0, (HANDLE)NULL);
+  assert(conout_handle != INVALID_HANDLE_VALUE);
+  close(STDOUT_FILENO);
+  const int conout_fd = _open_osfhandle((intptr_t)conout_handle, 0);
+  assert(conout_fd == STDOUT_FILENO);
+  close(STDERR_FILENO);
+  const int conerr_fd = _open_osfhandle((intptr_t)conout_handle, 0);
+  assert(conerr_fd == STDERR_FILENO);
+}
+
+void os_set_vtp(bool enable)
+{
+  static TriState is_legacy = kNone;
+  if (is_legacy == kNone) {
+    uv_tty_vtermstate_t state;
+    uv_tty_get_vterm_state(&state);
+    is_legacy = (state == UV_TTY_UNSUPPORTED) ? kTrue : kFalse;
+  }
+  if (!is_legacy && !os_has_vti()) {
+    uv_tty_set_vterm_state(enable ? UV_TTY_SUPPORTED : UV_TTY_UNSUPPORTED);
+  }
+}
+
+static bool os_has_vti(void)
+{
+  static TriState has_vti = kNone;
+  if (has_vti == kNone) {
+    HANDLE handle = (HANDLE)_get_osfhandle(input_global_fd());
+    DWORD dwMode;
+    if (handle != INVALID_HANDLE_VALUE && GetConsoleMode(handle, &dwMode)) {
+      has_vti = !!(dwMode & ENABLE_VIRTUAL_TERMINAL_INPUT) ? kTrue : kFalse;
+    }
+  }
+  return has_vti == kTrue;
+}