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Unified Diff: src/d8-posix.cc

Issue 1527103005: [d8] Remove "os" object from d8. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years ago
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Index: src/d8-posix.cc
diff --git a/src/d8-posix.cc b/src/d8-posix.cc
deleted file mode 100644
index 36d83b53cff62b84950cf649854be15e2a140225..0000000000000000000000000000000000000000
--- a/src/d8-posix.cc
+++ /dev/null
@@ -1,791 +0,0 @@
-// Copyright 2009 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#include "src/d8.h"
-
-#if !V8_OS_NACL
-#include <sys/select.h>
-#endif
-
-namespace v8 {
-
-
-// If the buffer ends in the middle of a UTF-8 sequence then we return
-// the length of the string up to but not including the incomplete UTF-8
-// sequence. If the buffer ends with a valid UTF-8 sequence then we
-// return the whole buffer.
-static int LengthWithoutIncompleteUtf8(char* buffer, int len) {
- int answer = len;
- // 1-byte encoding.
- static const int kUtf8SingleByteMask = 0x80;
- static const int kUtf8SingleByteValue = 0x00;
- // 2-byte encoding.
- static const int kUtf8TwoByteMask = 0xe0;
- static const int kUtf8TwoByteValue = 0xc0;
- // 3-byte encoding.
- static const int kUtf8ThreeByteMask = 0xf0;
- static const int kUtf8ThreeByteValue = 0xe0;
- // 4-byte encoding.
- static const int kUtf8FourByteMask = 0xf8;
- static const int kUtf8FourByteValue = 0xf0;
- // Subsequent bytes of a multi-byte encoding.
- static const int kMultiByteMask = 0xc0;
- static const int kMultiByteValue = 0x80;
- int multi_byte_bytes_seen = 0;
- while (answer > 0) {
- int c = buffer[answer - 1];
- // Ends in valid single-byte sequence?
- if ((c & kUtf8SingleByteMask) == kUtf8SingleByteValue) return answer;
- // Ends in one or more subsequent bytes of a multi-byte value?
- if ((c & kMultiByteMask) == kMultiByteValue) {
- multi_byte_bytes_seen++;
- answer--;
- } else {
- if ((c & kUtf8TwoByteMask) == kUtf8TwoByteValue) {
- if (multi_byte_bytes_seen >= 1) {
- return answer + 2;
- }
- return answer - 1;
- } else if ((c & kUtf8ThreeByteMask) == kUtf8ThreeByteValue) {
- if (multi_byte_bytes_seen >= 2) {
- return answer + 3;
- }
- return answer - 1;
- } else if ((c & kUtf8FourByteMask) == kUtf8FourByteValue) {
- if (multi_byte_bytes_seen >= 3) {
- return answer + 4;
- }
- return answer - 1;
- } else {
- return answer; // Malformed UTF-8.
- }
- }
- }
- return 0;
-}
-
-
-// Suspends the thread until there is data available from the child process.
-// Returns false on timeout, true on data ready.
-static bool WaitOnFD(int fd,
- int read_timeout,
- int total_timeout,
- const struct timeval& start_time) {
- fd_set readfds, writefds, exceptfds;
- struct timeval timeout;
- int gone = 0;
- if (total_timeout != -1) {
- struct timeval time_now;
- gettimeofday(&time_now, NULL);
- time_t seconds = time_now.tv_sec - start_time.tv_sec;
- gone = static_cast<int>(seconds * 1000 +
- (time_now.tv_usec - start_time.tv_usec) / 1000);
- if (gone >= total_timeout) return false;
- }
- FD_ZERO(&readfds);
- FD_ZERO(&writefds);
- FD_ZERO(&exceptfds);
- FD_SET(fd, &readfds);
- FD_SET(fd, &exceptfds);
- if (read_timeout == -1 ||
- (total_timeout != -1 && total_timeout - gone < read_timeout)) {
- read_timeout = total_timeout - gone;
- }
- timeout.tv_usec = (read_timeout % 1000) * 1000;
- timeout.tv_sec = read_timeout / 1000;
-#if V8_OS_NACL
- // PNaCL has no support for select.
- int number_of_fds_ready = -1;
-#else
- int number_of_fds_ready = select(fd + 1,
- &readfds,
- &writefds,
- &exceptfds,
- read_timeout != -1 ? &timeout : NULL);
-#endif
- return number_of_fds_ready == 1;
-}
-
-
-// Checks whether we ran out of time on the timeout. Returns true if we ran out
-// of time, false if we still have time.
-static bool TimeIsOut(const struct timeval& start_time, const int& total_time) {
- if (total_time == -1) return false;
- struct timeval time_now;
- gettimeofday(&time_now, NULL);
- // Careful about overflow.
- int seconds = static_cast<int>(time_now.tv_sec - start_time.tv_sec);
- if (seconds > 100) {
- if (seconds * 1000 > total_time) return true;
- return false;
- }
- int useconds = static_cast<int>(time_now.tv_usec - start_time.tv_usec);
- if (seconds * 1000000 + useconds > total_time * 1000) {
- return true;
- }
- return false;
-}
-
-
-// A utility class that does a non-hanging waitpid on the child process if we
-// bail out of the System() function early. If you don't ever do a waitpid on
-// a subprocess then it turns into one of those annoying 'zombie processes'.
-class ZombieProtector {
- public:
- explicit ZombieProtector(int pid): pid_(pid) { }
- ~ZombieProtector() { if (pid_ != 0) waitpid(pid_, NULL, 0); }
- void ChildIsDeadNow() { pid_ = 0; }
- private:
- int pid_;
-};
-
-
-// A utility class that closes a file descriptor when it goes out of scope.
-class OpenFDCloser {
- public:
- explicit OpenFDCloser(int fd): fd_(fd) { }
- ~OpenFDCloser() { close(fd_); }
- private:
- int fd_;
-};
-
-
-// A utility class that takes the array of command arguments and puts then in an
-// array of new[]ed UTF-8 C strings. Deallocates them again when it goes out of
-// scope.
-class ExecArgs {
- public:
- ExecArgs() {
- exec_args_[0] = NULL;
- }
- bool Init(Isolate* isolate, Local<Value> arg0, Local<Array> command_args) {
- String::Utf8Value prog(arg0);
- if (*prog == NULL) {
- const char* message =
- "os.system(): String conversion of program name failed";
- isolate->ThrowException(
- String::NewFromUtf8(isolate, message, NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
- int len = prog.length() + 3;
- char* c_arg = new char[len];
- snprintf(c_arg, len, "%s", *prog);
- exec_args_[0] = c_arg;
- int i = 1;
- for (unsigned j = 0; j < command_args->Length(); i++, j++) {
- Local<Value> arg(
- command_args->Get(isolate->GetCurrentContext(),
- Integer::New(isolate, j)).ToLocalChecked());
- String::Utf8Value utf8_arg(arg);
- if (*utf8_arg == NULL) {
- exec_args_[i] = NULL; // Consistent state for destructor.
- const char* message =
- "os.system(): String conversion of argument failed.";
- isolate->ThrowException(
- String::NewFromUtf8(isolate, message, NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
- int len = utf8_arg.length() + 1;
- char* c_arg = new char[len];
- snprintf(c_arg, len, "%s", *utf8_arg);
- exec_args_[i] = c_arg;
- }
- exec_args_[i] = NULL;
- return true;
- }
- ~ExecArgs() {
- for (unsigned i = 0; i < kMaxArgs; i++) {
- if (exec_args_[i] == NULL) {
- return;
- }
- delete [] exec_args_[i];
- exec_args_[i] = 0;
- }
- }
- static const unsigned kMaxArgs = 1000;
- char* const* arg_array() const { return exec_args_; }
- const char* arg0() const { return exec_args_[0]; }
-
- private:
- char* exec_args_[kMaxArgs + 1];
-};
-
-
-// Gets the optional timeouts from the arguments to the system() call.
-static bool GetTimeouts(const v8::FunctionCallbackInfo<v8::Value>& args,
- int* read_timeout,
- int* total_timeout) {
- if (args.Length() > 3) {
- if (args[3]->IsNumber()) {
- *total_timeout = args[3]
- ->Int32Value(args.GetIsolate()->GetCurrentContext())
- .FromJust();
- } else {
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(),
- "system: Argument 4 must be a number",
- NewStringType::kNormal).ToLocalChecked());
- return false;
- }
- }
- if (args.Length() > 2) {
- if (args[2]->IsNumber()) {
- *read_timeout = args[2]
- ->Int32Value(args.GetIsolate()->GetCurrentContext())
- .FromJust();
- } else {
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(),
- "system: Argument 3 must be a number",
- NewStringType::kNormal).ToLocalChecked());
- return false;
- }
- }
- return true;
-}
-
-
-static const int kReadFD = 0;
-static const int kWriteFD = 1;
-
-
-// This is run in the child process after fork() but before exec(). It normally
-// ends with the child process being replaced with the desired child program.
-// It only returns if an error occurred.
-static void ExecSubprocess(int* exec_error_fds,
- int* stdout_fds,
- const ExecArgs& exec_args) {
- close(exec_error_fds[kReadFD]); // Don't need this in the child.
- close(stdout_fds[kReadFD]); // Don't need this in the child.
- close(1); // Close stdout.
- dup2(stdout_fds[kWriteFD], 1); // Dup pipe fd to stdout.
- close(stdout_fds[kWriteFD]); // Don't need the original fd now.
- fcntl(exec_error_fds[kWriteFD], F_SETFD, FD_CLOEXEC);
- execvp(exec_args.arg0(), exec_args.arg_array());
- // Only get here if the exec failed. Write errno to the parent to tell
- // them it went wrong. If it went well the pipe is closed.
- int err = errno;
- ssize_t bytes_written;
- do {
- bytes_written = write(exec_error_fds[kWriteFD], &err, sizeof(err));
- } while (bytes_written == -1 && errno == EINTR);
- // Return (and exit child process).
-}
-
-
-// Runs in the parent process. Checks that the child was able to exec (closing
-// the file desriptor), or reports an error if it failed.
-static bool ChildLaunchedOK(Isolate* isolate, int* exec_error_fds) {
- ssize_t bytes_read;
- int err;
- do {
- bytes_read = read(exec_error_fds[kReadFD], &err, sizeof(err));
- } while (bytes_read == -1 && errno == EINTR);
- if (bytes_read != 0) {
- isolate->ThrowException(
- String::NewFromUtf8(isolate, strerror(err), NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
- return true;
-}
-
-
-// Accumulates the output from the child in a string handle. Returns true if it
-// succeeded or false if an exception was thrown.
-static Local<Value> GetStdout(Isolate* isolate, int child_fd,
- const struct timeval& start_time,
- int read_timeout, int total_timeout) {
- Local<String> accumulator = String::Empty(isolate);
-
- int fullness = 0;
- static const int kStdoutReadBufferSize = 4096;
- char buffer[kStdoutReadBufferSize];
-
- if (fcntl(child_fd, F_SETFL, O_NONBLOCK) != 0) {
- return isolate->ThrowException(
- String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal)
- .ToLocalChecked());
- }
-
- int bytes_read;
- do {
- bytes_read = static_cast<int>(
- read(child_fd, buffer + fullness, kStdoutReadBufferSize - fullness));
- if (bytes_read == -1) {
- if (errno == EAGAIN) {
- if (!WaitOnFD(child_fd,
- read_timeout,
- total_timeout,
- start_time) ||
- (TimeIsOut(start_time, total_timeout))) {
- return isolate->ThrowException(
- String::NewFromUtf8(isolate, "Timed out waiting for output",
- NewStringType::kNormal).ToLocalChecked());
- }
- continue;
- } else if (errno == EINTR) {
- continue;
- } else {
- break;
- }
- }
- if (bytes_read + fullness > 0) {
- int length = bytes_read == 0 ?
- bytes_read + fullness :
- LengthWithoutIncompleteUtf8(buffer, bytes_read + fullness);
- Local<String> addition =
- String::NewFromUtf8(isolate, buffer, NewStringType::kNormal, length)
- .ToLocalChecked();
- accumulator = String::Concat(accumulator, addition);
- fullness = bytes_read + fullness - length;
- memcpy(buffer, buffer + length, fullness);
- }
- } while (bytes_read != 0);
- return accumulator;
-}
-
-
-// Modern Linux has the waitid call, which is like waitpid, but more useful
-// if you want a timeout. If we don't have waitid we can't limit the time
-// waiting for the process to exit without losing the information about
-// whether it exited normally. In the common case this doesn't matter because
-// we don't get here before the child has closed stdout and most programs don't
-// do that before they exit.
-//
-// We're disabling usage of waitid in Mac OS X because it doens't work for us:
-// a parent process hangs on waiting while a child process is already a zombie.
-// See http://code.google.com/p/v8/issues/detail?id=401.
-#if defined(WNOWAIT) && !defined(ANDROID) && !defined(__APPLE__) \
- && !defined(__NetBSD__)
-#if !defined(__FreeBSD__)
-#define HAS_WAITID 1
-#endif
-#endif
-
-
-// Get exit status of child.
-static bool WaitForChild(Isolate* isolate,
- int pid,
- ZombieProtector& child_waiter, // NOLINT
- const struct timeval& start_time,
- int read_timeout,
- int total_timeout) {
-#ifdef HAS_WAITID
-
- siginfo_t child_info;
- child_info.si_pid = 0;
- int useconds = 1;
- // Wait for child to exit.
- while (child_info.si_pid == 0) {
- waitid(P_PID, pid, &child_info, WEXITED | WNOHANG | WNOWAIT);
- usleep(useconds);
- if (useconds < 1000000) useconds <<= 1;
- if ((read_timeout != -1 && useconds / 1000 > read_timeout) ||
- (TimeIsOut(start_time, total_timeout))) {
- isolate->ThrowException(
- String::NewFromUtf8(isolate,
- "Timed out waiting for process to terminate",
- NewStringType::kNormal).ToLocalChecked());
- kill(pid, SIGINT);
- return false;
- }
- }
- if (child_info.si_code == CLD_KILLED) {
- char message[999];
- snprintf(message,
- sizeof(message),
- "Child killed by signal %d",
- child_info.si_status);
- isolate->ThrowException(
- String::NewFromUtf8(isolate, message, NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
- if (child_info.si_code == CLD_EXITED && child_info.si_status != 0) {
- char message[999];
- snprintf(message,
- sizeof(message),
- "Child exited with status %d",
- child_info.si_status);
- isolate->ThrowException(
- String::NewFromUtf8(isolate, message, NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
-
-#else // No waitid call.
-
- int child_status;
- waitpid(pid, &child_status, 0); // We hang here if the child doesn't exit.
- child_waiter.ChildIsDeadNow();
- if (WIFSIGNALED(child_status)) {
- char message[999];
- snprintf(message,
- sizeof(message),
- "Child killed by signal %d",
- WTERMSIG(child_status));
- isolate->ThrowException(
- String::NewFromUtf8(isolate, message, NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
- if (WEXITSTATUS(child_status) != 0) {
- char message[999];
- int exit_status = WEXITSTATUS(child_status);
- snprintf(message,
- sizeof(message),
- "Child exited with status %d",
- exit_status);
- isolate->ThrowException(
- String::NewFromUtf8(isolate, message, NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
-
-#endif // No waitid call.
-
- return true;
-}
-
-
-// Implementation of the system() function (see d8.h for details).
-void Shell::System(const v8::FunctionCallbackInfo<v8::Value>& args) {
- HandleScope scope(args.GetIsolate());
- int read_timeout = -1;
- int total_timeout = -1;
- if (!GetTimeouts(args, &read_timeout, &total_timeout)) return;
- Local<Array> command_args;
- if (args.Length() > 1) {
- if (!args[1]->IsArray()) {
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(),
- "system: Argument 2 must be an array",
- NewStringType::kNormal).ToLocalChecked());
- return;
- }
- command_args = Local<Array>::Cast(args[1]);
- } else {
- command_args = Array::New(args.GetIsolate(), 0);
- }
- if (command_args->Length() > ExecArgs::kMaxArgs) {
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), "Too many arguments to system()",
- NewStringType::kNormal).ToLocalChecked());
- return;
- }
- if (args.Length() < 1) {
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), "Too few arguments to system()",
- NewStringType::kNormal).ToLocalChecked());
- return;
- }
-
- struct timeval start_time;
- gettimeofday(&start_time, NULL);
-
- ExecArgs exec_args;
- if (!exec_args.Init(args.GetIsolate(), args[0], command_args)) {
- return;
- }
- int exec_error_fds[2];
- int stdout_fds[2];
-
- if (pipe(exec_error_fds) != 0) {
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), "pipe syscall failed.",
- NewStringType::kNormal).ToLocalChecked());
- return;
- }
- if (pipe(stdout_fds) != 0) {
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), "pipe syscall failed.",
- NewStringType::kNormal).ToLocalChecked());
- return;
- }
-
- pid_t pid = fork();
- if (pid == 0) { // Child process.
- ExecSubprocess(exec_error_fds, stdout_fds, exec_args);
- exit(1);
- }
-
- // Parent process. Ensure that we clean up if we exit this function early.
- ZombieProtector child_waiter(pid);
- close(exec_error_fds[kWriteFD]);
- close(stdout_fds[kWriteFD]);
- OpenFDCloser error_read_closer(exec_error_fds[kReadFD]);
- OpenFDCloser stdout_read_closer(stdout_fds[kReadFD]);
-
- if (!ChildLaunchedOK(args.GetIsolate(), exec_error_fds)) return;
-
- Local<Value> accumulator = GetStdout(args.GetIsolate(), stdout_fds[kReadFD],
- start_time, read_timeout, total_timeout);
- if (accumulator->IsUndefined()) {
- kill(pid, SIGINT); // On timeout, kill the subprocess.
- args.GetReturnValue().Set(accumulator);
- return;
- }
-
- if (!WaitForChild(args.GetIsolate(),
- pid,
- child_waiter,
- start_time,
- read_timeout,
- total_timeout)) {
- return;
- }
-
- args.GetReturnValue().Set(accumulator);
-}
-
-
-void Shell::ChangeDirectory(const v8::FunctionCallbackInfo<v8::Value>& args) {
- if (args.Length() != 1) {
- const char* message = "chdir() takes one argument";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- String::Utf8Value directory(args[0]);
- if (*directory == NULL) {
- const char* message = "os.chdir(): String conversion of argument failed.";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- if (chdir(*directory) != 0) {
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), strerror(errno),
- NewStringType::kNormal).ToLocalChecked());
- return;
- }
-}
-
-
-void Shell::SetUMask(const v8::FunctionCallbackInfo<v8::Value>& args) {
- if (args.Length() != 1) {
- const char* message = "umask() takes one argument";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- if (args[0]->IsNumber()) {
-#if V8_OS_NACL
- // PNaCL has no support for umask.
- int previous = 0;
-#else
- int previous = umask(
- args[0]->Int32Value(args.GetIsolate()->GetCurrentContext()).FromJust());
-#endif
- args.GetReturnValue().Set(previous);
- return;
- } else {
- const char* message = "umask() argument must be numeric";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
-}
-
-
-static bool CheckItsADirectory(Isolate* isolate, char* directory) {
- struct stat stat_buf;
- int stat_result = stat(directory, &stat_buf);
- if (stat_result != 0) {
- isolate->ThrowException(
- String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
- if ((stat_buf.st_mode & S_IFDIR) != 0) return true;
- isolate->ThrowException(
- String::NewFromUtf8(isolate, strerror(EEXIST), NewStringType::kNormal)
- .ToLocalChecked());
- return false;
-}
-
-
-// Returns true for success. Creates intermediate directories as needed. No
-// error if the directory exists already.
-static bool mkdirp(Isolate* isolate, char* directory, mode_t mask) {
- int result = mkdir(directory, mask);
- if (result == 0) return true;
- if (errno == EEXIST) {
- return CheckItsADirectory(isolate, directory);
- } else if (errno == ENOENT) { // Intermediate path element is missing.
- char* last_slash = strrchr(directory, '/');
- if (last_slash == NULL) {
- isolate->ThrowException(
- String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
- *last_slash = 0;
- if (!mkdirp(isolate, directory, mask)) return false;
- *last_slash = '/';
- result = mkdir(directory, mask);
- if (result == 0) return true;
- if (errno == EEXIST) {
- return CheckItsADirectory(isolate, directory);
- }
- isolate->ThrowException(
- String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- } else {
- isolate->ThrowException(
- String::NewFromUtf8(isolate, strerror(errno), NewStringType::kNormal)
- .ToLocalChecked());
- return false;
- }
-}
-
-
-void Shell::MakeDirectory(const v8::FunctionCallbackInfo<v8::Value>& args) {
- mode_t mask = 0777;
- if (args.Length() == 2) {
- if (args[1]->IsNumber()) {
- mask = args[1]
- ->Int32Value(args.GetIsolate()->GetCurrentContext())
- .FromJust();
- } else {
- const char* message = "mkdirp() second argument must be numeric";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message,
- NewStringType::kNormal).ToLocalChecked());
- return;
- }
- } else if (args.Length() != 1) {
- const char* message = "mkdirp() takes one or two arguments";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- String::Utf8Value directory(args[0]);
- if (*directory == NULL) {
- const char* message = "os.mkdirp(): String conversion of argument failed.";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- mkdirp(args.GetIsolate(), *directory, mask);
-}
-
-
-void Shell::RemoveDirectory(const v8::FunctionCallbackInfo<v8::Value>& args) {
- if (args.Length() != 1) {
- const char* message = "rmdir() takes one or two arguments";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- String::Utf8Value directory(args[0]);
- if (*directory == NULL) {
- const char* message = "os.rmdir(): String conversion of argument failed.";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- rmdir(*directory);
-}
-
-
-void Shell::SetEnvironment(const v8::FunctionCallbackInfo<v8::Value>& args) {
- if (args.Length() != 2) {
- const char* message = "setenv() takes two arguments";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- String::Utf8Value var(args[0]);
- String::Utf8Value value(args[1]);
- if (*var == NULL) {
- const char* message =
- "os.setenv(): String conversion of variable name failed.";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- if (*value == NULL) {
- const char* message =
- "os.setenv(): String conversion of variable contents failed.";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- setenv(*var, *value, 1);
-}
-
-
-void Shell::UnsetEnvironment(const v8::FunctionCallbackInfo<v8::Value>& args) {
- if (args.Length() != 1) {
- const char* message = "unsetenv() takes one argument";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- String::Utf8Value var(args[0]);
- if (*var == NULL) {
- const char* message =
- "os.setenv(): String conversion of variable name failed.";
- args.GetIsolate()->ThrowException(
- String::NewFromUtf8(args.GetIsolate(), message, NewStringType::kNormal)
- .ToLocalChecked());
- return;
- }
- unsetenv(*var);
-}
-
-
-void Shell::AddOSMethods(Isolate* isolate, Local<ObjectTemplate> os_templ) {
- os_templ->Set(String::NewFromUtf8(isolate, "system", NewStringType::kNormal)
- .ToLocalChecked(),
- FunctionTemplate::New(isolate, System));
- os_templ->Set(String::NewFromUtf8(isolate, "chdir", NewStringType::kNormal)
- .ToLocalChecked(),
- FunctionTemplate::New(isolate, ChangeDirectory));
- os_templ->Set(String::NewFromUtf8(isolate, "setenv", NewStringType::kNormal)
- .ToLocalChecked(),
- FunctionTemplate::New(isolate, SetEnvironment));
- os_templ->Set(String::NewFromUtf8(isolate, "unsetenv", NewStringType::kNormal)
- .ToLocalChecked(),
- FunctionTemplate::New(isolate, UnsetEnvironment));
- os_templ->Set(String::NewFromUtf8(isolate, "umask", NewStringType::kNormal)
- .ToLocalChecked(),
- FunctionTemplate::New(isolate, SetUMask));
- os_templ->Set(String::NewFromUtf8(isolate, "mkdirp", NewStringType::kNormal)
- .ToLocalChecked(),
- FunctionTemplate::New(isolate, MakeDirectory));
- os_templ->Set(String::NewFromUtf8(isolate, "rmdir", NewStringType::kNormal)
- .ToLocalChecked(),
- FunctionTemplate::New(isolate, RemoveDirectory));
-}
-
-} // namespace v8
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