Lines Matching refs:hist

354  * trace_event_save_hist - save the content of an event hist
356  * If the trigger is a hist: one, save the content of the hist file.
364 	char *hist;
369 	/* trigger enables hist */
373 	/* is this a hist: trigger? */
374 	retval = strncmp(tevent->trigger, "hist:", strlen("hist:"));
380 	printf("  Saving event %s:%s hist to %s\n", tevent->system, tevent->event, path);
388 	hist = tracefs_event_file_read(instance->inst, tevent->system, tevent->event, "hist", 0);
389 	if (!hist) {
390 		err_msg("  Failed to read %s:%s hist file\n", tevent->system, tevent->event);
396 		index += write(out_fd, &hist[index], strlen(hist) - index);
397 	} while (index < strlen(hist));
399 	free(hist);