int
main (int argc, char *argv[])
{
const char *child_path;
int test;
int fd[2];
int child;
int exitcode;
set_program_name (argv[0]);
child_path = argv[1];
test = atoi (argv[2]);
/* Create a pipe. */
ASSERT (pipe (fd) >= 0);
/* Map fd[0] to STDIN_FILENO and fd[1] to STDOUT_FILENO, because on Windows,
the only three file descriptors that are inherited by child processes are
STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO. */
if (fd[0] != STDIN_FILENO)
{
ASSERT (dup2 (fd[0], STDIN_FILENO) >= 0);
close (fd[0]);
}
if (fd[1] != STDOUT_FILENO)
{
ASSERT (dup2 (fd[1], STDOUT_FILENO) >= 0);
close (fd[1]);
}
/* Prepare the file descriptors. */
if (test & 1)
ASSERT (set_nonblocking_flag (STDOUT_FILENO, true) >= 0);
if (test & 2)
ASSERT (set_nonblocking_flag (STDIN_FILENO, true) >= 0);
/* Spawn the child process. */
{
const char *child_argv[3];
child_argv[0] = child_path;
child_argv[1] = argv[2];
child_argv[2] = NULL;
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
child = spawnvpe (P_NOWAIT, child_path, child_argv,
(const char **) environ);
ASSERT (child >= 0);
#else
{
pid_t child_pid;
int err =
posix_spawnp (&child_pid, child_path, NULL, NULL, (char **) child_argv,
environ);
ASSERT (err == 0);
child = child_pid;
}
#endif
}
/* Close unused file descriptors. */
close (STDIN_FILENO);
exitcode =
main_writer_loop (test, PIPE_DATA_BLOCK_SIZE, STDOUT_FILENO, false);
{
int err =
wait_subprocess (child, child_path, false, false, false, false, NULL);
ASSERT (err == 0);
}
return exitcode;
}
int
main (int argc, char *argv[])
{
const char *child_path = argv[1];
int test = atoi (argv[2]);
int server;
int port;
int child;
int server_socket;
int exitcode;
/* Create a server socket. */
server = create_server (0, 1, &port);
/* Spawn the child process. */
{
char port_arg[10+1];
const char *child_argv[4];
sprintf (port_arg, "%u", port);
child_argv[0] = child_path;
child_argv[1] = argv[2];
child_argv[2] = port_arg;
child_argv[3] = NULL;
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
child = spawnvpe (P_NOWAIT, child_path, child_argv,
(const char **) environ);
ASSERT (child >= 0);
#else
{
pid_t child_pid;
int err =
posix_spawnp (&child_pid, child_path, NULL, NULL, (char **) child_argv,
environ);
ASSERT (err == 0);
child = child_pid;
}
#endif
}
/* Accept a connection from the child process. */
server_socket = create_server_socket (server);
/* Prepare the file descriptor. */
if (test & 1)
ASSERT (set_nonblocking_flag (server_socket, true) >= 0);
#if ENABLE_DEBUGGING
# ifdef SO_SNDBUF
{
int value;
socklen_t value_len = sizeof (value);
if (getsockopt (server_socket, SOL_SOCKET, SO_SNDBUF, &value, &value_len) >= 0)
fprintf (stderr, "SO_SNDBUF = %d\n", value);
}
# endif
# ifdef SO_RCVBUF
{
int value;
socklen_t value_len = sizeof (value);
if (getsockopt (server_socket, SOL_SOCKET, SO_RCVBUF, &value, &value_len) >= 0)
fprintf (stderr, "SO_RCVBUF = %d\n", value);
}
# endif
#endif
exitcode =
main_writer_loop (test, SOCKET_DATA_BLOCK_SIZE, server_socket,
SOCKET_HAS_LARGE_BUFFER);
{
int err =
wait_subprocess (child, child_path, false, false, false, false, NULL);
ASSERT (err == 0);
}
return exitcode;
}
