Zachary Anderson
7308e58c3f
Previously we would compile in implementaitions of native calls for IO functions that would never be used. This CL provides implementations that throw a Dart exception if they're called by mistake. It also uses a DART_IO_DISABLED preprocessor define to clean up the build files and check that we're not including code we shouldn't. R=iposva@google.com, johnmccutchan@google.com Review URL: https://codereview.chromium.org/1839463002 .
86 lines
1.9 KiB
C++
86 lines
1.9 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#if !defined(DART_IO_DISABLED)
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#include "platform/globals.h"
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#if defined(TARGET_OS_LINUX)
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#include "bin/stdio.h"
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#include <errno.h> // NOLINT
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#include <sys/ioctl.h> // NOLINT
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#include <termios.h> // NOLINT
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#include "bin/fdutils.h"
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#include "platform/signal_blocker.h"
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namespace dart {
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namespace bin {
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int Stdin::ReadByte() {
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int c = NO_RETRY_EXPECTED(getchar());
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if (c == EOF) {
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c = -1;
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}
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return c;
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}
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bool Stdin::GetEchoMode() {
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struct termios term;
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VOID_NO_RETRY_EXPECTED(tcgetattr(STDIN_FILENO, &term));
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return ((term.c_lflag & ECHO) != 0);
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}
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void Stdin::SetEchoMode(bool enabled) {
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struct termios term;
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VOID_NO_RETRY_EXPECTED(tcgetattr(STDIN_FILENO, &term));
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if (enabled) {
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term.c_lflag |= (ECHO | ECHONL);
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} else {
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term.c_lflag &= ~(ECHO | ECHONL);
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}
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VOID_NO_RETRY_EXPECTED(tcsetattr(STDIN_FILENO, TCSANOW, &term));
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}
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bool Stdin::GetLineMode() {
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struct termios term;
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VOID_NO_RETRY_EXPECTED(tcgetattr(STDIN_FILENO, &term));
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return ((term.c_lflag & ICANON) != 0);
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}
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void Stdin::SetLineMode(bool enabled) {
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struct termios term;
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VOID_NO_RETRY_EXPECTED(tcgetattr(STDIN_FILENO, &term));
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if (enabled) {
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term.c_lflag |= ICANON;
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} else {
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term.c_lflag &= ~(ICANON);
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}
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VOID_NO_RETRY_EXPECTED(tcsetattr(STDIN_FILENO, TCSANOW, &term));
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}
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bool Stdout::GetTerminalSize(intptr_t fd, int size[2]) {
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struct winsize w;
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int status = NO_RETRY_EXPECTED(ioctl(fd, TIOCGWINSZ, &w));
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if ((status == 0) && ((w.ws_col != 0) || (w.ws_row != 0))) {
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size[0] = w.ws_col;
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size[1] = w.ws_row;
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return true;
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}
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return false;
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}
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} // namespace bin
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} // namespace dart
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#endif // defined(TARGET_OS_LINUX)
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#endif // !defined(DART_IO_DISABLED)
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