147 typedef void (^child_action_handler_t)(proc_config_t proc_config, int child_id);
174 static child_action_handler_t proc_info_listpids_handler = ^void (proc_config_t proc_config, int ch…
175 	close(proc_config->parent_pipe[PIPE_IN]);
176 	close(proc_config->child_pipe[child_id][PIPE_OUT]);
179 	retval           = write(proc_config->parent_pipe[PIPE_OUT], &child_action, sizeof(child_action));
182 			retval = read(proc_config->child_pipe[child_id][PIPE_IN], &child_action, sizeof(child_action));
208 				retval = write(proc_config->parent_pipe[PIPE_OUT], &retval, sizeof(retval));
215 	close(proc_config->parent_pipe[PIPE_OUT]);
216 	close(proc_config->child_pipe[child_id][PIPE_IN]);
220 static child_action_handler_t proc_info_call_pidinfo_handler = ^void (proc_config_t proc_config, in…
221 	close(proc_config->parent_pipe[PIPE_IN]);
222 	close(proc_config->child_pipe[child_id][PIPE_OUT]);
233 	retval = write(proc_config->parent_pipe[PIPE_OUT], &action, sizeof(action));
236 			retval = read(proc_config->child_pipe[child_id][PIPE_IN], &action, sizeof(action));
291 					*((int *)(proc_config->cow_map)) = 20;
340 					if (proc_config->cow_map) {
341 						munmap(proc_config->cow_map, PAGE_SIZE);
349 				retval = write(proc_config->parent_pipe[PIPE_OUT], &action, sizeof(action));
355 		close(proc_config->parent_pipe[PIPE_OUT]);
356 		close(proc_config->child_pipe[child_id][PIPE_IN]);
362 free_proc_config(proc_config_t proc_config)  in free_proc_config()  argument
364 	free(proc_config);  in free_proc_config()
368 send_action_to_child_processes(proc_config_t proc_config, int action)  in send_action_to_child_processes()  argument
371 	for (int i = 0; i < proc_config->child_count; i++) {  in send_action_to_child_processes()
372 		err = write(proc_config->child_pipe[i][PIPE_OUT], &action, sizeof(action));  in send_action_to_child_processes()
377 		WAIT_FOR_CHILDREN(proc_config->parent_pipe[PIPE_IN], action, proc_config->child_count);  in send_action_to_child_processes()
382 kill_child_processes(proc_config_t proc_config)  in kill_child_processes()  argument
386 	send_action_to_child_processes(proc_config, ACT_EXIT);  in kill_child_processes()
387 	for (int child_id = 0; child_id < proc_config->child_count; child_id++) {  in kill_child_processes()
388 		close(proc_config->child_pipe[child_id][PIPE_OUT]);  in kill_child_processes()
389 		dt_waitpid(proc_config->child_pids[child_id], NULL, NULL, 5);  in kill_child_processes()
393 	close(proc_config->parent_pipe[PIPE_IN]);  in kill_child_processes()
394 	munmap(proc_config->cow_map, PAGE_SIZE);  in kill_child_processes()
405 	proc_config_t proc_config = malloc(sizeof(*proc_config));  in spawn_child_processes()  local
410 	proc_config->proc_grp_id = getpgid(0);  in spawn_child_processes()
412 	proc_config->child_count = child_count;  in spawn_child_processes()
414 	err = pipe(proc_config->parent_pipe);  in spawn_child_processes()
421 	proc_config->cow_map = mmap(0, PAGE_SIZE, PROT_WRITE, MAP_ANON | MAP_PRIVATE, -1, 0);  in spawn_child_processes()
423 	T_ASSERT_NE_PTR(proc_config->cow_map, MAP_FAILED, "cow_map mmap()");  in spawn_child_processes()
424 	*((int *)(proc_config->cow_map)) = 10;  in spawn_child_processes()
430 		err = pipe(proc_config->child_pipe[i]);  in spawn_child_processes()
440 			child_handler(proc_config, child_id);  in spawn_child_processes()
442 			proc_config->child_pids[child_id] = child_pid;  in spawn_child_processes()
444 		close(proc_config->child_pipe[child_id][PIPE_IN]);  in spawn_child_processes()
449 	close(proc_config->parent_pipe[PIPE_OUT]);  in spawn_child_processes()
450 	WAIT_FOR_CHILDREN(proc_config->parent_pipe[PIPE_IN], action, child_count);  in spawn_child_processes()
452 	return proc_config;  in spawn_child_processes()
471 	proc_config_t proc_config = spawn_child_processes(1, proc_info_call_pidinfo_handler);  in proc_info_caller()  local
472 	int child_pid             = proc_config->child_pids[0];  in proc_info_caller()
497 		send_action_to_child_processes(proc_config, ACT_PHASE2);  in proc_info_caller()
519 		send_action_to_child_processes(proc_config, ACT_PHASE3);  in proc_info_caller()
566 		send_action_to_child_processes(proc_config, ACT_PHASE4);  in proc_info_caller()
720 	kill_child_processes(proc_config);  in proc_info_caller()
721 	free_proc_config(proc_config);  in proc_info_caller()
753 	proc_config_t proc_config = spawn_child_processes(CONF_PROC_COUNT, proc_info_listpids_handler);  variable
783 			if (proc_ids[j] == proc_config->child_pids[i]) {
800 	kill_child_processes(proc_config);
801 	free_proc_config(proc_config);
813 	proc_config_t proc_config = spawn_child_processes(CONF_PROC_COUNT, proc_info_listpids_handler);  variable
822 …int num_procs    = __proc_info(PROC_INFO_CALL_LISTPIDS, PROC_PGRP_ONLY, (uint32_t)proc_config->pro…
826 	kill_child_processes(proc_config);
827 	free_proc_config(proc_config);
835 	proc_config_t proc_config = spawn_child_processes(CONF_PROC_COUNT, proc_info_listpids_handler);  variable
846 	kill_child_processes(proc_config);
847 	free_proc_config(proc_config);
855 	proc_config_t proc_config = spawn_child_processes(CONF_PROC_COUNT, proc_info_listpids_handler);  variable
859 	send_action_to_child_processes(proc_config, ACT_CHANGE_UID);
865 	kill_child_processes(proc_config);
866 	free_proc_config(proc_config);
874 	proc_config_t proc_config = spawn_child_processes(CONF_PROC_COUNT, proc_info_listpids_handler);  variable
878 	send_action_to_child_processes(proc_config, ACT_CHANGE_RUID);
884 	kill_child_processes(proc_config);
885 	free_proc_config(proc_config);
898 	proc_config_t proc_config = spawn_child_processes(CONF_PROC_COUNT, proc_info_listpids_handler);  variable
907 	kill_child_processes(proc_config);
908 	free_proc_config(proc_config);
1657 …proc_config_t proc_config                = spawn_child_processes(1, proc_info_call_pidinfo_handler…  variable
1658 	int child_pid                            = proc_config->child_pids[0];
1699 	free_proc_config(proc_config);
1706 	proc_config_t proc_config = spawn_child_processes(1, proc_info_call_pidinfo_handler);  variable
1707 	int child_pid             = proc_config->child_pids[0];
1726 	free_proc_config(proc_config);
1733 	proc_config_t proc_config = spawn_child_processes(1, proc_info_call_pidinfo_handler);  variable
1734 	int child_pid             = proc_config->child_pids[0];
1735 	send_action_to_child_processes(proc_config, ACT_PHASE5);
1752 	kill_child_processes(proc_config);
1753 	free_proc_config(proc_config);
1762 	proc_config_t proc_config = spawn_child_processes(1, proc_info_call_pidinfo_handler);  variable
1763 	int child_pid             = proc_config->child_pids[0];
1764 	send_action_to_child_processes(proc_config, ACT_EXIT);
1773 	free_proc_config(proc_config);
1780 	proc_config_t proc_config = spawn_child_processes(1, proc_info_call_pidinfo_handler);  variable
1781 	int child_pid             = proc_config->child_pids[0];
1800 	free_proc_config(proc_config);