56 #include <libudev.h>
147 				its.it_value.tv_nsec -= NSEC_PER_SEC;  in sig_ioctl()
160 	return ret ? -1 : 0;  in sig_ioctl()
202 		__igt_sigiter.offset.tv_sec = end.tv_sec - start.tv_sec;  in igt_sigiter_start()
203 		__igt_sigiter.offset.tv_nsec = end.tv_nsec - start.tv_nsec;  in igt_sigiter_start()
206 			__igt_sigiter.offset.tv_sec -= 1;  in igt_sigiter_start()
246 	if (iter->pass++ == 0)  in __igt_sigiter_continue()
258 		  __func__, iter->pass - 1,  in __igt_sigiter_continue()
268 		__igt_sigiter.offset.tv_nsec -= NSEC_PER_SEC;  in __igt_sigiter_continue()
318 	/* We pick SIGCONT as it is a "safe" signal - if we send SIGCONT to  in igt_fork_signal_helper()
334 		signal_helper_process(-getppid());  in igt_fork_signal_helper()
373 	while (waitpid(signal_helper.pid, &status, WUNTRACED) == -1 &&  in igt_suspend_signal_helper()
470 		struct udev_device *dev;  in hang_detector_process()  local
479 		dev = NULL;  in hang_detector_process()
481 			dev = udev_monitor_receive_device(mon);  in hang_detector_process()
482 		if (dev == NULL)  in hang_detector_process()
485 		devnum = udev_device_get_devnum(dev);  in hang_detector_process()
489 			str = udev_device_get_property_value(dev, "ERROR");  in hang_detector_process()
497 		udev_device_unref(dev);  in hang_detector_process()
516 	 * Disable per-engine reset to force an error uevent. We don't  in igt_fork_hang_detector()
518 	 * they are a test failure!) and so the loss of per-engine reset  in igt_fork_hang_detector()
566 	static int dump_aub = -1;  in igt_aub_dump_enabled()
568 	if (dump_aub == -1)  in igt_aub_dump_enabled()
627 	for (i = size - 1; i > 0; i--) {  in igt_permute_array()
661  * long-winded tests manually on the console. To avoid spamming log files in
725 			test_name[strlen(test_name) - 1] = '\0';  in get_suspend_test()
757 #define SQUELCH ">/dev/null 2>&1"
772 	snprintf(cmd, sizeof(cmd), "rtcwake -n -s %d -m %s " SQUELCH,  in suspend_via_rtcwake()
780 	snprintf(cmd, sizeof(cmd), "rtcwake -s %d -m %s ",  in suspend_via_rtcwake()
843  * again. Waking up is either achieved using the RTC wake-up alarm for a full
852  * component by comparing fail/no-fail results at different test points.
982  * var is set in the --interactive-debug=$var variable. Multiple keys
983  * can be specified as a comma-separated list or alternatively "all" if a wait
1025  * var is set in the --interactive-debug=$var variable. Multiple vars
1026  * can be specified as a comma-separated list or alternatively "all" if a wait
1151 	 * igt_assert() is not AS-Safe. */  in igt_module_param_exit_handler()
1154 	for (data = module_params; data != NULL; data = data->next) {  in igt_module_param_exit_handler()
1155 		strcpy(file_path + dir_len, data->name);  in igt_module_param_exit_handler()
1159 			int size = strlen (data->original_value);  in igt_module_param_exit_handler()
1161 			if (size != write(fd, data->original_value, size)) {  in igt_module_param_exit_handler()
1172 	/* free() is not AS-Safe, so we can't call it here. */  in igt_module_param_exit_handler()
1185  * Notice that this function is called by igt_set_module_param(), so that one -
1186  * or one of its wrappers - is the only function the test programs need to call.
1195 	for (data = module_params; data != NULL; data = data->next)  in igt_save_module_param()
1196 		if (strncmp(data->name, name, PARAM_NAME_MAX_SZ) == 0)  in igt_save_module_param()
1205 	strncpy(data->name, name, PARAM_NAME_MAX_SZ - 1);  in igt_save_module_param()
1210 	n = read(fd, data->original_value, PARAM_VALUE_MAX_SZ);  in igt_save_module_param()
1216 	data->next = module_params;  in igt_save_module_param()
1291 		if (!strncasecmp(proc_info->cmd, comm, sizeof(proc_info->cmd))) {  in igt_is_process_running()
1310  * sent successfully or -errno otherwise.
1325 		if (!strncasecmp(proc_info->cmd, comm, sizeof(proc_info->cmd))) {  in igt_terminate_process()
1327 			if (kill(proc_info->tid, sig) < 0)  in igt_terminate_process()
1328 				err = -errno;  in igt_terminate_process()
1353 	pid_t pid = info->pid;  in __igt_show_stat()
1354 	igt_assert((comm = info->comm));  in __igt_show_stat()
1355 	igt_assert((fn = info->fn));  in __igt_show_stat()
1357 	if (lstat(fn, &st) == -1)  in __igt_show_stat()
1408 	struct pinfo p = { .pid = info->tid, .comm = info->cmd, .fn = fn };  in igt_show_stat()
1426 	const char *default_fds[] = { "/dev/pts", "/dev/null" };  in __igt_lsof_fds()
1438 		if (*d->d_name == '.')  in __igt_lsof_fds()
1442 		snprintf(path, sizeof(path), "%s/%s", proc_path, d->d_name);  in __igt_lsof_fds()
1444 		if (lstat(path, &st) == -1)  in __igt_lsof_fds()
1497 		snprintf(path, sizeof(path), "/proc/%d/cwd", proc_info->tid);  in __igt_lsof()
1499 		if (stat(path, &st) == -1)  in __igt_lsof()
1512 		snprintf(path, sizeof(path), "/proc/%d/fd", proc_info->tid);  in __igt_lsof()
1537 	if (stat(dpath, &st) == -1)  in igt_lsof()
1547 	if (len > 1 && dpath[len - 1] == '/')  in igt_lsof()
1548 		sanitized[len - 1] = '\0';  in igt_lsof()
1574 	nsecs = now->tv_nsec - last ->tv_nsec;  in elapsed()
1575 	nsecs += 1e9*(now->tv_sec - last->tv_sec);  in elapsed()
1593 		its.it_value.tv_nsec -= NSEC_PER_SEC;  in siglatency()
1663  * Get the global system-wide maximum of open files the kernel allows,
1664  * by reading /proc/sys/fs/file-max. Fails the current subtest if
1668  * Returns: System-wide maximum of open files, or a best effort guess.
1674 		FILE *file = fopen("/proc/sys/fs/file-max", "r");  in vfs_file_max()