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libuv/test/test-spawn.c  view on Meta::CPAN

static int no_term_signal;
#ifndef _WIN32
static int timer_counter;
#endif
static uv_tcp_t tcp_server;

#define OUTPUT_SIZE 1024
static char output[OUTPUT_SIZE];
static int output_used;


static void close_cb(uv_handle_t* handle) {
  printf("close_cb\n");
  close_cb_called++;
}

static void exit_cb(uv_process_t* process,
                    int64_t exit_status,
                    int term_signal) {
  printf("exit_cb\n");
  exit_cb_called++;
  ASSERT(exit_status == 1);
  ASSERT(term_signal == 0);
  uv_close((uv_handle_t*)process, close_cb);
}


static void fail_cb(uv_process_t* process,
                    int64_t exit_status,
                    int term_signal) {
  ASSERT(0 && "fail_cb called");
}


static void kill_cb(uv_process_t* process,
                    int64_t exit_status,
                    int term_signal) {
  int err;

  printf("exit_cb\n");
  exit_cb_called++;
#ifdef _WIN32
  ASSERT(exit_status == 1);
#else
  ASSERT(exit_status == 0);
#endif
#if defined(__APPLE__) || defined(__MVS__)
  /*
   * At least starting with Darwin Kernel Version 16.4.0, sending a SIGTERM to a
   * process that is still starting up kills it with SIGKILL instead of SIGTERM.
   * See: https://github.com/libuv/libuv/issues/1226
   */
  ASSERT(no_term_signal || term_signal == SIGTERM || term_signal == SIGKILL);
#else
  ASSERT(no_term_signal || term_signal == SIGTERM);
#endif
  uv_close((uv_handle_t*)process, close_cb);

  /*
   * Sending signum == 0 should check if the
   * child process is still alive, not kill it.
   * This process should be dead.
   */
  err = uv_kill(process->pid, 0);
  ASSERT(err == UV_ESRCH);
}

static void detach_failure_cb(uv_process_t* process,
                              int64_t exit_status,
                              int term_signal) {
  printf("detach_cb\n");
  exit_cb_called++;
}

static void on_alloc(uv_handle_t* handle,
                     size_t suggested_size,
                     uv_buf_t* buf) {
  buf->base = output + output_used;
  buf->len = OUTPUT_SIZE - output_used;
}


static void on_read(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {
  if (nread > 0) {
    output_used += nread;
  } else if (nread < 0) {
    ASSERT(nread == UV_EOF);
    uv_close((uv_handle_t*)tcp, close_cb);
  }
}


#ifndef _WIN32
static void on_read_once(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {
  uv_read_stop(tcp);
  on_read(tcp, nread, buf);
}
#endif


static void write_cb(uv_write_t* req, int status) {
  ASSERT(status == 0);
  uv_close((uv_handle_t*)req->handle, close_cb);
}


static void init_process_options(char* test, uv_exit_cb exit_cb) {
  /* Note spawn_helper1 defined in test/run-tests.c */
  int r = uv_exepath(exepath, &exepath_size);
  ASSERT(r == 0);
  exepath[exepath_size] = '\0';
  args[0] = exepath;
  args[1] = test;
  args[2] = NULL;
  args[3] = NULL;
  args[4] = NULL;
  options.file = exepath;
  options.args = args;
  options.exit_cb = exit_cb;
  options.flags = 0;
}

libuv/test/test-spawn.c  view on Meta::CPAN

  options.stdio[0].data.stream = (uv_stream_t*)∈
  options.stdio[1].flags = UV_CREATE_PIPE | UV_WRITABLE_PIPE;
  options.stdio[1].data.stream = (uv_stream_t*)&out;
  options.stdio[2].flags = UV_CREATE_PIPE | UV_WRITABLE_PIPE;
  options.stdio[2].data.stream = (uv_stream_t*)&err;
  options.stdio_count = 3;

  r = uv_spawn(uv_default_loop(), &process, &options);
  ASSERT(r == 0);

  buf = uv_buf_init(message, sizeof message);
  r = uv_write(&write, (uv_stream_t*) &in, &buf, 1, write_cb);
  ASSERT(r == 0);

  r = uv_read_start((uv_stream_t*) &out, on_alloc, on_read);
  ASSERT(r == 0);

  r = uv_read_start((uv_stream_t*) &err, on_alloc, on_read);
  ASSERT(r == 0);

  r = uv_timer_init(uv_default_loop(), &timer);
  ASSERT(r == 0);

  r = uv_timer_start(&timer, timer_cb, 500, 0);
  ASSERT(r == 0);

  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
  ASSERT(r == 0);

  ASSERT(exit_cb_called == 1);
  ASSERT(close_cb_called == 5); /* process x 1, timer x 1, stdio x 3. */

  MAKE_VALGRIND_HAPPY();
  return 0;
}


TEST_IMPL(spawn_and_ping) {
  uv_write_t write_req;
  uv_pipe_t in, out;
  uv_buf_t buf;
  uv_stdio_container_t stdio[2];
  int r;

  init_process_options("spawn_helper3", exit_cb);
  buf = uv_buf_init("TEST", 4);

  uv_pipe_init(uv_default_loop(), &out, 0);
  uv_pipe_init(uv_default_loop(), &in, 0);
  options.stdio = stdio;
  options.stdio[0].flags = UV_CREATE_PIPE | UV_READABLE_PIPE;
  options.stdio[0].data.stream = (uv_stream_t*)∈
  options.stdio[1].flags = UV_CREATE_PIPE | UV_WRITABLE_PIPE;
  options.stdio[1].data.stream = (uv_stream_t*)&out;
  options.stdio_count = 2;

  r = uv_spawn(uv_default_loop(), &process, &options);
  ASSERT(r == 0);

  /* Sending signum == 0 should check if the
   * child process is still alive, not kill it.
   */
  r = uv_process_kill(&process, 0);
  ASSERT(r == 0);

  r = uv_write(&write_req, (uv_stream_t*)&in, &buf, 1, write_cb);
  ASSERT(r == 0);

  r = uv_read_start((uv_stream_t*)&out, on_alloc, on_read);
  ASSERT(r == 0);

  ASSERT(exit_cb_called == 0);

  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
  ASSERT(r == 0);

  ASSERT(exit_cb_called == 1);
  ASSERT(strcmp(output, "TEST") == 0);

  MAKE_VALGRIND_HAPPY();
  return 0;
}


TEST_IMPL(spawn_same_stdout_stderr) {
  uv_write_t write_req;
  uv_pipe_t in, out;
  uv_buf_t buf;
  uv_stdio_container_t stdio[3];
  int r;

  init_process_options("spawn_helper3", exit_cb);
  buf = uv_buf_init("TEST", 4);

  uv_pipe_init(uv_default_loop(), &out, 0);
  uv_pipe_init(uv_default_loop(), &in, 0);
  options.stdio = stdio;
  options.stdio[0].flags = UV_CREATE_PIPE | UV_READABLE_PIPE;
  options.stdio[0].data.stream = (uv_stream_t*)∈
  options.stdio[1].flags = UV_CREATE_PIPE | UV_WRITABLE_PIPE;
  options.stdio[1].data.stream = (uv_stream_t*)&out;
  options.stdio_count = 2;

  r = uv_spawn(uv_default_loop(), &process, &options);
  ASSERT(r == 0);

  /* Sending signum == 0 should check if the
   * child process is still alive, not kill it.
   */
  r = uv_process_kill(&process, 0);
  ASSERT(r == 0);

  r = uv_write(&write_req, (uv_stream_t*)&in, &buf, 1, write_cb);
  ASSERT(r == 0);

  r = uv_read_start((uv_stream_t*)&out, on_alloc, on_read);
  ASSERT(r == 0);

  ASSERT(exit_cb_called == 0);

  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
  ASSERT(r == 0);

  ASSERT(exit_cb_called == 1);
  ASSERT(strcmp(output, "TEST") == 0);

  MAKE_VALGRIND_HAPPY();
  return 0;
}


TEST_IMPL(spawn_closed_process_io) {
  uv_pipe_t in;
  uv_write_t write_req;
  uv_buf_t buf;
  uv_stdio_container_t stdio[2];
  static char buffer[] = "hello-from-spawn_stdin\n";

  init_process_options("spawn_helper3", exit_cb);

  uv_pipe_init(uv_default_loop(), &in, 0);
  options.stdio = stdio;
  options.stdio[0].flags = UV_CREATE_PIPE | UV_READABLE_PIPE;
  options.stdio[0].data.stream = (uv_stream_t*) ∈
  options.stdio_count = 1;

  close(0); /* Close process stdin. */

  ASSERT(0 == uv_spawn(uv_default_loop(), &process, &options));

  buf = uv_buf_init(buffer, sizeof(buffer));
  ASSERT(0 == uv_write(&write_req, (uv_stream_t*) &in, &buf, 1, write_cb));

  ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT));

  ASSERT(exit_cb_called == 1);
  ASSERT(close_cb_called == 2); /* process, child stdin */

  MAKE_VALGRIND_HAPPY();
  return 0;
}


TEST_IMPL(kill) {
  int r;

#ifdef _WIN32
  no_term_signal = 1;
#endif

  init_process_options("spawn_helper4", kill_cb);

  /* Verify that uv_spawn() resets the signal disposition. */
#ifndef _WIN32
  {
    sigset_t set;
    sigemptyset(&set);
    sigaddset(&set, SIGTERM);
    ASSERT(0 == pthread_sigmask(SIG_BLOCK, &set, NULL));
  }
  ASSERT(SIG_ERR != signal(SIGTERM, SIG_IGN));
#endif

  r = uv_spawn(uv_default_loop(), &process, &options);
  ASSERT(r == 0);

#ifndef _WIN32
  {
    sigset_t set;
    sigemptyset(&set);
    sigaddset(&set, SIGTERM);
    ASSERT(0 == pthread_sigmask(SIG_UNBLOCK, &set, NULL));
  }
  ASSERT(SIG_ERR != signal(SIGTERM, SIG_DFL));
#endif

  /* Sending signum == 0 should check if the
   * child process is still alive, not kill it.
   */
  r = uv_kill(process.pid, 0);
  ASSERT(r == 0);

  /* Kill the process. */
  r = uv_kill(process.pid, /* SIGTERM */ 15);
  ASSERT(r == 0);

  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
  ASSERT(r == 0);

  ASSERT(exit_cb_called == 1);
  ASSERT(close_cb_called == 1);

  MAKE_VALGRIND_HAPPY();
  return 0;
}


#ifdef _WIN32
TEST_IMPL(spawn_detect_pipe_name_collisions_on_windows) {
  int r;
  uv_pipe_t out;
  char name[64];
  HANDLE pipe_handle;
  uv_stdio_container_t stdio[2];

  init_process_options("spawn_helper2", exit_cb);

  uv_pipe_init(uv_default_loop(), &out, 0);
  options.stdio = stdio;
  options.stdio[0].flags = UV_IGNORE;
  options.stdio[1].flags = UV_CREATE_PIPE | UV_WRITABLE_PIPE;
  options.stdio[1].data.stream = (uv_stream_t*)&out;
  options.stdio_count = 2;

  /* Create a pipe that'll cause a collision. */
  snprintf(name,
           sizeof(name),
           "\\\\.\\pipe\\uv\\%p-%d",
           &out,
           GetCurrentProcessId());
  pipe_handle = CreateNamedPipeA(name,
                                PIPE_ACCESS_INBOUND | FILE_FLAG_OVERLAPPED,
                                PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT,
                                10,
                                65536,
                                65536,
                                0,
                                NULL);
  ASSERT(pipe_handle != INVALID_HANDLE_VALUE);

  r = uv_spawn(uv_default_loop(), &process, &options);
  ASSERT(r == 0);

  r = uv_read_start((uv_stream_t*) &out, on_alloc, on_read);
  ASSERT(r == 0);

  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
  ASSERT(r == 0);