static int
do_loop(void)
{
path_t src_name;
path_t exe_name;
path_t src_path;
path_t exe_path;
path_t log_path;
path_t exe_out;
path_t log_out;
path_t txt_out;
path_t report_dir, status_dir;
path_t pkt_name, run_name, work_run_name;
char *pkt_ptr;
size_t pkt_len;
int r, i;
tpTask tsk = 0;
unsigned char msgbuf[512];
int ce_flag;
struct compile_request_packet *req = 0;
struct compile_reply_packet rpl;
void *rpl_pkt = 0;
size_t rpl_size = 0;
const unsigned char *tail_message = 0;
#if HAVE_TRUNCATE - 0
struct stat stb;
#endif /* HAVE_TRUNCATE */
FILE *log_f = 0;
struct section_language_data *lang = 0;
const struct section_global_data *global = serve_state.global;
// if (cr_serialize_init(&serve_state) < 0) return -1;
interrupt_init();
interrupt_disable();
while (1) {
// terminate if signaled
if (interrupt_get_status() || interrupt_restart_requested()) break;
r = scan_dir(global->compile_queue_dir, pkt_name, sizeof(pkt_name));
if (r < 0) {
switch (-r) {
case ENOMEM:
case ENOENT:
case ENFILE:
err("trying to recover, sleep for 5 seconds");
interrupt_enable();
os_Sleep(5000);
interrupt_disable();
continue;
default:
err("unrecoverable error, exiting");
return -1;
}
}
if (!r) {
interrupt_enable();
os_Sleep(global->sleep_time);
interrupt_disable();
continue;
}
pkt_ptr = 0;
pkt_len = 0;
r = generic_read_file(&pkt_ptr, 0, &pkt_len, SAFE | REMOVE,
global->compile_queue_dir, pkt_name, "");
if (r == 0) continue;
if (r < 0 || !pkt_ptr) {
// it looks like there's no reasonable recovery strategy
// so, just ignore the error
continue;
}
r = compile_request_packet_read(pkt_len, pkt_ptr, &req);
xfree(pkt_ptr); pkt_ptr = 0;
if (r < 0) {
/*
* the incoming packet is completely broken, so just drop it
*/
goto cleanup_and_continue;
}
if (!req->contest_id) {
// special packets
r = req->lang_id;
req = compile_request_packet_free(req);
switch (r) {
case 1:
interrupt_flag_interrupt();
break;
case 2:
interrupt_flag_sighup();
break;
}
continue;
}
memset(&rpl, 0, sizeof(rpl));
rpl.judge_id = req->judge_id;
rpl.contest_id = req->contest_id;
rpl.run_id = req->run_id;
rpl.ts1 = req->ts1;
rpl.ts1_us = req->ts1_us;
rpl.use_uuid = req->use_uuid;
rpl.uuid[0] = req->uuid[0];
rpl.uuid[1] = req->uuid[1];
rpl.uuid[2] = req->uuid[2];
rpl.uuid[3] = req->uuid[3];
get_current_time(&rpl.ts2, &rpl.ts2_us);
rpl.run_block_len = req->run_block_len;
rpl.run_block = req->run_block; /* !!! shares memory with req */
msgbuf[0] = 0;
/* prepare paths useful to report messages to the serve */
snprintf(report_dir, sizeof(report_dir),
"%s/%06d/report", global->compile_dir, rpl.contest_id);
snprintf(status_dir, sizeof(status_dir),
"%s/%06d/status", global->compile_dir, rpl.contest_id);
if (req->use_uuid > 0) {
snprintf(run_name, sizeof(run_name), "%s", ej_uuid_unparse(req->uuid, NULL));
} else {
snprintf(run_name, sizeof(run_name), "%06d", rpl.run_id);
}
snprintf(work_run_name, sizeof(work_run_name), "%06d", rpl.run_id);
pathmake(log_out, report_dir, "/", run_name, NULL);
snprintf(txt_out, sizeof(txt_out), "%s/%s.txt", report_dir, run_name);
make_all_dir(status_dir, 0777);
make_dir(report_dir, 0777);
if (!r) {
/*
* there is something wrong, but we have contest_id, judge_id
* and run_id in place, so we can report an error back
* to serve
*/
snprintf(msgbuf, sizeof(msgbuf), "invalid compile packet\n");
goto report_internal_error;
}
if (req->style_check_only && req->style_checker && req->style_checker[0]) {
check_style_only(global, req, &rpl, pkt_name, run_name, work_run_name,
report_dir, status_dir);
req = 0;
continue;
}
if (req->lang_id <= 0 || req->lang_id > serve_state.max_lang
|| !(lang = serve_state.langs[req->lang_id])) {
snprintf(msgbuf, sizeof(msgbuf), "invalid lang_id %d\n", req->lang_id);
goto report_internal_error;
}
pathmake(src_name, work_run_name, lang->src_sfx, NULL);
pathmake(exe_name, work_run_name, lang->exe_sfx, NULL);
pathmake(src_path, global->compile_work_dir, "/", src_name, NULL);
pathmake(exe_path, global->compile_work_dir, "/", exe_name, NULL);
pathmake(log_path, global->compile_work_dir, "/", "log", NULL);
/* the resulting executable file */
snprintf(exe_out, sizeof(exe_out), "%s/%s%s", report_dir, run_name, lang->exe_sfx);
/* move the source file into the working dir */
r = generic_copy_file(REMOVE, global->compile_src_dir, pkt_name,
lang->src_sfx,
0, global->compile_work_dir, src_name, "");
if (!r) {
snprintf(msgbuf, sizeof(msgbuf), "the source file is missing\n");
err("the source file is missing");
goto report_internal_error;
}
if (r < 0) {
snprintf(msgbuf, sizeof(msgbuf), "error reading the source file\n");
err("cannot read the source file");
goto report_internal_error;
}
tail_message = 0;
ce_flag = 0;
if (req->output_only) {
// copy src_path -> exe_path
generic_copy_file(0, NULL, src_path, NULL, 0, NULL, exe_path, NULL);
ce_flag = 0;
rpl.status = RUN_OK;
} else {
if (req->style_checker) {
/* run style checker */
//info("Starting: %s %s", req->style_checker, src_path);
tsk = task_New();
task_AddArg(tsk, req->style_checker);
task_AddArg(tsk, src_path);
task_SetPathAsArg0(tsk);
task_SetWorkingDir(tsk, global->compile_work_dir);
task_EnableProcessGroup(tsk);
task_SetRedir(tsk, 0, TSR_FILE, "/dev/null", TSK_READ);
task_SetRedir(tsk, 1, TSR_FILE, log_path, TSK_REWRITE, 0777);
task_SetRedir(tsk, 2, TSR_DUP, 1);
if (req->sc_env_num > 0) {
for (i = 0; i < req->sc_env_num; i++)
task_PutEnv(tsk, req->sc_env_vars[i]);
}
if (lang->compile_real_time_limit > 0) {
task_SetMaxRealTime(tsk, lang->compile_real_time_limit);
}
task_EnableAllSignals(tsk);
task_PrintArgs(tsk);
if (task_Start(tsk) < 0) {
err("Failed to start style checker process");
tail_message = "\n\nFailed to start style checker";
ce_flag = 1;
rpl.status = RUN_STYLE_ERR;
} else {
task_Wait(tsk);
if (task_IsTimeout(tsk)) {
err("Style checker process timed out");
tail_message = "\n\nStyle checker process timed out";
ce_flag = 1;
rpl.status = RUN_STYLE_ERR;
} else if (task_IsAbnormal(tsk)) {
info("Style checker failed");
ce_flag = 1;
rpl.status = RUN_STYLE_ERR;
} else {
info("Style checker sucessful");
ce_flag = 0;
rpl.status = RUN_OK;
}
}
task_Delete(tsk); tsk = 0;
}
if (!ce_flag) {
//info("Starting: %s %s %s", lang->cmd, src_name, exe_name);
tsk = task_New();
task_AddArg(tsk, lang->cmd);
task_AddArg(tsk, src_name);
task_AddArg(tsk, exe_name);
task_SetPathAsArg0(tsk);
task_EnableProcessGroup(tsk);
if (((ssize_t) req->max_vm_size) > 0) {
task_SetVMSize(tsk, req->max_vm_size);
} else if (((ssize_t) lang->max_vm_size) > 0) {
task_SetVMSize(tsk, lang->max_vm_size);
} else if (((ssize_t) global->compile_max_vm_size) > 0) {
task_SetVMSize(tsk, global->compile_max_vm_size);
}
if (((ssize_t) req->max_stack_size) > 0) {
task_SetStackSize(tsk, req->max_stack_size);
} else if (((ssize_t) lang->max_stack_size) > 0) {
task_SetStackSize(tsk, lang->max_stack_size);
} else if (((ssize_t) global->compile_max_stack_size) > 0) {
task_SetStackSize(tsk, global->compile_max_stack_size);
}
if (((ssize_t) req->max_file_size) > 0) {
task_SetMaxFileSize(tsk, req->max_file_size);
} else if (((ssize_t) lang->max_file_size) > 0) {
task_SetMaxFileSize(tsk, lang->max_file_size);
} else if (((ssize_t) global->compile_max_file_size) > 0) {
task_SetMaxFileSize(tsk, global->compile_max_file_size);
}
if (req->env_num > 0) {
for (i = 0; i < req->env_num; i++)
task_PutEnv(tsk, req->env_vars[i]);
}
task_SetWorkingDir(tsk, global->compile_work_dir);
task_SetRedir(tsk, 0, TSR_FILE, "/dev/null", TSK_READ);
task_SetRedir(tsk, 1, TSR_FILE, log_path, TSK_APPEND, 0777);
task_SetRedir(tsk, 2, TSR_DUP, 1);
if (lang->compile_real_time_limit > 0) {
task_SetMaxRealTime(tsk, lang->compile_real_time_limit);
}
task_EnableAllSignals(tsk);
/*
if (cr_serialize_lock(&serve_state) < 0) {
// FIXME: propose reasonable recovery?
return -1;
}
*/
task_PrintArgs(tsk);
task_Start(tsk);
task_Wait(tsk);
/*
if (cr_serialize_unlock(&serve_state) < 0) {
// FIXME: propose reasonable recovery?
return -1;
}
*/
if (task_IsTimeout(tsk)) {
err("Compilation process timed out");
tail_message = "\n\nCompilation process timed out";
ce_flag = 1;
rpl.status = RUN_COMPILE_ERR;
} else if (task_IsAbnormal(tsk)) {
info("Compilation failed");
ce_flag = 1;
rpl.status = RUN_COMPILE_ERR;
} else {
info("Compilation sucessful");
ce_flag = 0;
rpl.status = RUN_OK;
}
}
}
get_current_time(&rpl.ts3, &rpl.ts3_us);
if (compile_reply_packet_write(&rpl, &rpl_size, &rpl_pkt) < 0)
goto cleanup_and_continue;
while (1) {
if (ce_flag) {
#if HAVE_TRUNCATE - 0
// truncate log file at size 1MB
if (stat(log_path, &stb) >= 0 && stb.st_size > MAX_LOG_SIZE) {
truncate(log_path, MAX_LOG_SIZE);
if ((log_f = fopen(log_path, "a"))) {
fprintf(log_f, "\n\nCompilation log is truncated by ejudge!\n");
fclose(log_f); log_f = 0;
}
}
#endif
// append tail_message
if (tail_message && (log_f = fopen(log_path, "a"))) {
fprintf(log_f, "%s\n", tail_message);
fclose(log_f); log_f = 0;
}
r = generic_copy_file(0, 0, log_path, "", 0, 0, log_out, "");
} else {
r = generic_copy_file(0, 0, exe_path, "", 0, 0, exe_out, "");
generic_copy_file(0, 0, log_path, "", 0, 0, txt_out, "");
}
if (r >= 0 && generic_write_file(rpl_pkt, rpl_size, SAFE,
status_dir, run_name, "") >= 0)
break;
info("waiting 5 seconds hoping for things to change");
interrupt_enable();
os_Sleep(5000);
interrupt_disable();
}
goto cleanup_and_continue;
report_internal_error:;
rpl.status = RUN_CHECK_FAILED;
get_current_time(&rpl.ts3, &rpl.ts3_us);
if (compile_reply_packet_write(&rpl, &rpl_size, &rpl_pkt) < 0)
goto cleanup_and_continue;
if (generic_write_file(msgbuf, strlen(msgbuf), 0, 0, log_out, 0) < 0)
goto cleanup_and_continue;
if (generic_write_file(rpl_pkt, rpl_size, SAFE, status_dir, run_name, 0) < 0)
unlink(log_out);
goto cleanup_and_continue;
cleanup_and_continue:;
task_Delete(tsk); tsk = 0;
clear_directory(global->compile_work_dir);
xfree(rpl_pkt); rpl_pkt = 0;
req = compile_request_packet_free(req);
} /* while (1) */
return 0;
}
static int
run_program(int argc, char *argv[], long *p_cpu_time, long *p_real_time)
{
tTask *tsk = 0;
int i;
int retcode = RUN_CHECK_FAILED;
struct testinfo_struct tinfo;
unsigned char input_path[PATH_MAX];
unsigned char output_path[PATH_MAX];
unsigned char error_path[PATH_MAX];
unsigned char buf[1024];
long used_vm_size;
memset(&tinfo, 0, sizeof(tinfo));
input_path[0] = 0;
output_path[0] = 0;
error_path[0] = 0;
if (!all_tests) {
if (test_file && test_file[0] && test_pattern && test_pattern[0]) {
// guess test_num from test_file and test_pat
// FIXME: dumb!
i = 0;
do {
++i;
snprintf(buf, sizeof(buf), test_pattern, i);
} while (i < 1000 && strcmp(buf, test_file) != 0);
if (i >= 1000) {
fatal("failed to guess test_num from test_file and test_pattern");
}
test_num = i;
test_file = NULL;
}
if (test_num > 0) {
if (test_pattern && test_pattern[0]) {
snprintf(buf, sizeof(buf), test_pattern, test_num);
test_file = strdup(buf);
}
if (corr_pattern && corr_pattern[0]) {
snprintf(buf, sizeof(buf), corr_pattern, test_num);
corr_file = strdup(buf);
}
if (info_pattern && info_pattern[0]) {
snprintf(buf, sizeof(buf), info_pattern, test_num);
info_file = strdup(buf);
}
if (tgzdir_pattern && tgzdir_pattern[0]) {
snprintf(buf, sizeof(buf), tgzdir_pattern, test_num);
tgzdir_file = strdup(buf);
}
}
}
if (info_file && (i = testinfo_parse(info_file, &tinfo, NULL)) < 0) {
fatal("testinfo file parse error: %s", testinfo_strerror(-i));
}
if (test_file) {
if (!input_file || !input_file[0]) input_file = DEFAULT_INPUT_FILE_NAME;
if (working_dir && working_dir[0]) {
snprintf(input_path, sizeof(input_path), "%s/%s", working_dir, input_file);
} else {
snprintf(input_path, sizeof(input_path), "%s", input_file);
}
}
if (corr_file) {
if (!output_file || !output_file[0]) output_file = DEFAULT_OUTPUT_FILE_NAME;
if (working_dir && working_dir[0]) {
snprintf(output_path, sizeof(output_path), "%s/%s", working_dir, output_file);
} else {
snprintf(output_path, sizeof(output_path), "%s", output_file);
}
}
if (info_file && tinfo.check_stderr > 0) {
error_file = DEFAULT_ERROR_FILE_NAME;
if (working_dir && working_dir[0]) {
snprintf(error_path, sizeof(error_path), "%s/%s", working_dir, error_file);
} else {
snprintf(error_path, sizeof(error_path), "%s", error_file);
}
}
if (!(tsk = task_New())) fatal("cannot create task");
task_SetQuietFlag(tsk);
task_pnAddArgs(tsk, argc, argv);
task_pnAddArgs(tsk, tinfo.cmd_argc, tinfo.cmd_argv);
task_SetPathAsArg0(tsk);
if (working_dir) task_SetWorkingDir(tsk, working_dir);
if (test_file) {
if (copy_file(NULL, test_file, working_dir, input_file, -1, -1) < 0)
fatal("copy failed");
if (use_stdin) task_SetRedir(tsk, 0, TSR_FILE, input_path, TSK_READ);
} else {
if (stdin_file) task_SetRedir(tsk, 0, TSR_FILE, stdin_file, TSK_READ);
}
if (corr_file) {
if (use_stdout) task_SetRedir(tsk, 1, TSR_FILE, output_path, TSK_REWRITE, TSK_FULL_RW);
} else {
if (stdout_file)
task_SetRedir(tsk, 1, TSR_FILE, stdout_file, TSK_REWRITE, TSK_FULL_RW);
}
if (info_file && tinfo.check_stderr > 0) {
task_SetRedir(tsk, 2, TSR_FILE, error_path, TSK_REWRITE, TSK_FULL_RW);
} else {
if (stderr_file)
task_SetRedir(tsk, 2, TSR_FILE, stderr_file, TSK_REWRITE, TSK_FULL_RW);
}
if (clear_env_flag) task_ClearEnv(tsk);
for (i = 0; i < env_vars.u; i++)
task_PutEnv(tsk, env_vars.v[i]);
for (i = 0; i < tinfo.env_u; ++i) {
task_PutEnv(tsk, tinfo.env_v[i]);
}
if (time_limit_millis > 0)
if (task_SetMaxTimeMillis(tsk, time_limit_millis) < 0)
fatal("--time-limit-millis is not supported");
if (time_limit > 0) task_SetMaxTime(tsk, time_limit);
if (real_time_limit > 0) task_SetMaxRealTime(tsk, real_time_limit);
if (kill_signal)
if (task_SetKillSignal(tsk, kill_signal) < 0)
fatal("invalid value for --kill-signal option");
if (no_core_dump) task_DisableCoreDump(tsk);
if (max_vm_size) task_SetVMSize(tsk, max_vm_size);
if (max_stack_size) task_SetStackSize(tsk, max_stack_size);
if (max_data_size) task_SetDataSize(tsk, max_data_size);
if (memory_limit)
if (task_EnableMemoryLimitError(tsk) < 0)
fatal("--memory-limit is not supported");
if (secure_exec)
if (task_EnableSecureExec(tsk) < 0)
fatal("--secure-exec is not supported");
if (security_violation)
if (task_EnableSecurityViolationError(tsk) < 0)
fatal("--security-violation is not supported");
task_PrintArgs(tsk);
if (task_Start(tsk) < 0) {
fprintf(stderr, "Status: CF\n"
"Description: cannot start task: %s\n", task_GetErrorMessage(tsk));
retcode = RUN_CHECK_FAILED;
goto cleanup;
}
task_NewWait(tsk);
if (memory_limit && task_IsMemoryLimit(tsk)) {
if (all_tests <= 0) {
fprintf(stderr, "Status: ML\n"
"Description: memory limit exceeded\n");
}
retcode = RUN_MEM_LIMIT_ERR;
} else if (security_violation && task_IsSecurityViolation(tsk)) {
if (all_tests <= 0) {
fprintf(stderr, "Status: SV\n"
"Description: security violation\n");
}
retcode = RUN_SECURITY_ERR;
} else if (task_IsTimeout(tsk)) {
if (all_tests <= 0) {
fprintf(stderr, "Status: TL\n"
"Description: time limit exceeded\n");
}
retcode = RUN_TIME_LIMIT_ERR;
} else if (task_IsAbnormal(tsk)
&& (!info_file || tinfo.exit_code <= 0 || task_Status(tsk) != TSK_EXITED
|| task_ExitCode(tsk) != tinfo.exit_code)) {
if (all_tests <= 0) {
fprintf(stderr, "Status: RT\n");
if (task_Status(tsk) == TSK_SIGNALED) {
fprintf(stderr, "Signal: %d\n", task_TermSignal(tsk));
} else {
fprintf(stderr, "Exitcode: %d\n", task_ExitCode(tsk));
}
fprintf(stderr, "Description: run-time error\n");
}
retcode = RUN_RUN_TIME_ERR;
} else {
if (info_file && tinfo.check_stderr > 0) {
if (copy_file(working_dir, error_file, NULL, corr_file, group, mode) < 0) {
fprintf(stderr, "Status: PE\n");
} else {
if (quiet_flag <= 0 && all_tests <= 0) fprintf(stderr, "Status: OK\n");
retcode = 0;
}
} else if (corr_file && update_corr > 0) {
if (copy_file(working_dir, output_file, NULL, corr_file, group, mode) < 0) {
fprintf(stderr, "Status: PE\n");
} else {
if (quiet_flag <= 0 && all_tests <= 0) fprintf(stderr, "Status: OK\n");
retcode = 0;
}
} else {
if (quiet_flag <= 0 && all_tests <= 0) fprintf(stderr, "Status: OK\n");
retcode = 0;
}
}
if (quiet_flag <= 0 && all_tests <= 0) {
fprintf(stderr, "CPUTime: %ld\n", task_GetRunningTime(tsk));
fprintf(stderr, "RealTime: %ld\n", task_GetRealTime(tsk));
used_vm_size = task_GetMemoryUsed(tsk);
if (used_vm_size > 0) {
fprintf(stderr, "VMSize: %ld\n", used_vm_size);
}
}
if (p_cpu_time) *p_cpu_time = task_GetRunningTime(tsk);
if (p_real_time) *p_real_time = task_GetRealTime(tsk);
cleanup:
task_Delete(tsk); tsk = NULL;
if (input_path[0]) unlink(input_path);
if (output_path[0]) unlink(output_path);
if (error_path[0]) unlink(error_path);
return retcode;
}