ajohnsen@google.com
b71e57617e
This is required by some shell systems, such as Emacs. BUG=https://code.google.com/p/dart/issues/detail?id=14301 R=sgjesse@google.com Review URL: https://codereview.chromium.org//59393003 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@29895 260f80e4-7a28-3924-810f-c04153c831b5
91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
// Copyright (c) 2012, 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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#include "platform/globals.h"
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#if defined(TARGET_OS_LINUX)
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#include "bin/platform.h"
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#include <signal.h> // NOLINT
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#include <string.h> // NOLINT
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#include <unistd.h> // NOLINT
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#include "bin/fdutils.h"
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namespace dart {
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namespace bin {
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bool Platform::Initialize() {
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// Turn off the signal handler for SIGPIPE as it causes the process
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// to terminate on writing to a closed pipe. Without the signal
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// handler error EPIPE is set instead.
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struct sigaction act;
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bzero(&act, sizeof(act));
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act.sa_handler = SIG_IGN;
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if (sigaction(SIGPIPE, &act, 0) != 0) {
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perror("Setting signal handler failed");
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return false;
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}
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return true;
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}
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int Platform::NumberOfProcessors() {
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return sysconf(_SC_NPROCESSORS_ONLN);
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}
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const char* Platform::OperatingSystem() {
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return "linux";
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}
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bool Platform::LocalHostname(char *buffer, intptr_t buffer_length) {
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return gethostname(buffer, buffer_length) == 0;
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}
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char** Platform::Environment(intptr_t* count) {
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// Using environ directly is only safe as long as we do not
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// provide access to modifying environment variables.
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intptr_t i = 0;
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char** tmp = environ;
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while (*(tmp++) != NULL) i++;
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*count = i;
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char** result = new char*[i];
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for (intptr_t current = 0; current < i; current++) {
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result[current] = environ[current];
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}
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return result;
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}
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void Platform::FreeEnvironment(char** env, intptr_t count) {
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delete[] env;
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}
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void Platform::PrintBlocking(FILE* file, const char* format, ...) {
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int fd = fileno(file);
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FDUtils::SetBlocking(fd);
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va_list args;
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va_start(args, format);
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vfprintf(file, format, args);
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fflush(file);
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va_end(args);
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FDUtils::SetNonBlocking(fd);
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}
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void Platform::Cleanup() {
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FDUtils::SetBlocking(fileno(stdout));
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FDUtils::SetBlocking(fileno(stderr));
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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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