/* Switch to command-line mode. */
static void
cmd_colon(key_info_t key_info, keys_info_t *keys_info)
{
update_marks(view);
set_count_vars(key_info.count);
enter_cmdline_mode(CLS_COMMAND, "", NULL);
}
static void
cmd_return(key_info_t key_info, keys_info_t *keys_info)
{
update_marks(view);
if(vle_mode_is(VISUAL_MODE))
{
vle_mode_set(NORMAL_MODE, VMT_PRIMARY);
}
}
int main(int argc, char **argv)
{
populate_device(argc, argv);
reset_marks(TOTAL_MARKS);
int ret;
int pid = fork();
if (pid == 0) {
printv("Child sleeping for 3 seconds\n");
sleep(3);
printv("Child creating buffer\n");
ret = create_buffer(1);
printv("Child finished, exiting with status %d\n", ret);
_exit(ret);
} else {
printv("Parent creating buffer\n");
ret = create_buffer(0);
if (ret == 0) {
update_marks(1);
}
if (ret != 4) {
device_dirty = true;
}
int status;
wait(&status);
if (WIFEXITED(status)) {
int child_ret = WEXITSTATUS(status);
printv("Child returned status %d\n", child_ret);
if (child_ret == 0) {
update_marks(1);
}
if (ret != 4) {
device_dirty = true;
}
}
}
/* only the parent gets here */
return end_marks();
}
void try_close(int fd, bool mark)
{
/* 1 mark: close. If open() did not work, then the student gets 0 for this
* criteria too.
*/
if (fd < 0) {
fprintf(stderr, "Since all opens failed, close() cannot be tested)\n");
} else {
if (close(fd) == 0) {
if (mark)
update_marks(1);
} else {
printe("close()");
}
}
}
int main(int argc, char **argv)
{
populate_device(argc, argv);
reset_marks(TOTAL_MARKS);
/* 1 mark: open. Device must be able to be opened for reading, writing and
* reading/writing to get this mark.
*/
int fd = open_rdrw();
if (fd < 0) {
try_close(fd, false);
goto end;
}
fd = open_rdonly();
if (fd < 0) {
try_close(fd, false);
goto end;
}
fd = open_wronly();
if (fd < 0) {
try_close(fd, false);
goto end;
}
/* fork another process and try the opens again */
char *arg0 = "./test_1a_open_close";
printv("Now forking to run %s\n", arg0);
int pid = fork();
if (pid == 0) {
/* get rid of stdout */
int null_fd = open("/dev/null", O_WRONLY);
if (null_fd < 0) {
printe("open(\"/dev/null\")");
_exit(ERR_EXEC);
}
if (dup2(null_fd, STDOUT_FILENO) < 0) {
printe("dup2()");
_exit(ERR_EXEC);
}
/* execute the single open/close test */
execl(arg0, arg0, device_node, NULL);
printe("execl()");
_exit(ERR_EXEC);
} else {
int status;
wait(&status);
if (WIFEXITED(status)) {
int ret = WEXITSTATUS(status);
if (ret == 0) {
printv("Child returned success\n");
update_marks(1);
} else {
printv("Child returned non-zero status (%d)\n", ret);
}
}
try_close(fd, true);
goto end;
}
end:
return end_marks();
}
/* Switch to command-line mode. */
static void
cmd_colon(key_info_t key_info, keys_info_t *keys_info)
{
update_marks(view);
enter_cmdline_mode(CMD_SUBMODE, L"", NULL);
}
