Files
sdk/runtime/bin/platform_linux.cc
T
ager@google.com 758943e32a Add read-only environment variable access.
Map<String, String> env = new Platform().environment();

Unfortunately, this is a bit hard to test at this point. I
will move on to implement support for providing an environment
to processes that are started. At that point we can test it
properly.

Another follow-up change will be to remove the instantiation
for Platform. I would like this to be just

Map<String, String> env = Platform.environment();

R=sgjesse@google.com
BUG=dartbug.com/752
TEST=

Review URL: https://chromiumcodereview.appspot.com//10112002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6646 260f80e4-7a28-3924-810f-c04153c831b5
2012-04-17 16:20:28 +00:00

68 lines
1.7 KiB
C++

// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "bin/platform.h"
#include <signal.h>
#include <string.h>
#include <unistd.h>
bool Platform::Initialize() {
// Turn off the signal handler for SIGPIPE as it causes the process
// to terminate on writing to a closed pipe. Without the signal
// handler error EPIPE is set instead.
struct sigaction act;
bzero(&act, sizeof(act));
act.sa_handler = SIG_IGN;
if (sigaction(SIGPIPE, &act, 0) != 0) {
perror("Setting signal handler failed");
return false;
}
return true;
}
int Platform::NumberOfProcessors() {
return sysconf(_SC_NPROCESSORS_ONLN);
}
const char* Platform::OperatingSystem() {
return "linux";
}
bool Platform::LocalHostname(char *buffer, intptr_t buffer_length) {
return gethostname(buffer, buffer_length) == 0;
}
char** Platform::Environment(intptr_t* count) {
// Using environ directly is only safe as long as we do not
// provide access to modifying environment variables.
intptr_t i = 0;
char** tmp = environ;
while (*(tmp++) != NULL) i++;
*count = i;
char** result = new char*[i];
for (intptr_t current = 0; current < i; current++) {
result[current] = environ[current];
}
return result;
}
char* Platform::StrError(int error_code) {
static const int kBufferSize = 1024;
char* error = static_cast<char*>(malloc(kBufferSize));
error[0] = '\0';
char* error_str = strerror_r(error_code, error, kBufferSize);
if (error_str != error) {
size_t written = snprintf(error, kBufferSize, "%s", error_str);
ASSERT(written == strlen(error_str));
}
return error;
}