1 /* 2 * Support for executing code in new tasks and threads. 3 * 4 * Copyright (C) 2022, 2023 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 #include <l4/re/env.h> 23 #include <l4/sys/err.h> 24 #include <l4/util/util.h> 25 26 #include <fsclient/process.h> 27 #include <systypes/format.h> 28 29 #include <stdio.h> 30 31 32 33 int main(int argc, char *argv[]) 34 { 35 long err; 36 37 if (argc < 2) 38 { 39 printf("Need the program to run.\n"); 40 return 1; 41 } 42 43 /* Create a new process structure. */ 44 45 process_t *process = process_new(); 46 47 /* Start a process for the given program. */ 48 49 err = process_start(process, argc - 1, argv + 1); 50 51 if (err) 52 { 53 printf("Could not start process: %s\n", l4sys_errtostr(err)); 54 return 1; 55 } 56 57 printf("Finished program initiation.\n"); 58 59 /* Obtain the common notifier. */ 60 61 process_notifier_t *notifier = process_notify_task(); 62 63 /* Subscribe to the process for notifications. */ 64 65 err = process_notify_subscribe(process, NOTIFY_TASK_SIGNAL, notifier); 66 67 if (err) 68 { 69 printf("Could not subscribe to process: %s\n", l4sys_errtostr(err)); 70 return 1; 71 } 72 73 /* Wait for a signal from the process. */ 74 75 err = process_notify_wait_process(process, notifier); 76 77 if (err) 78 { 79 printf("Could not wait for process: %s\n", l4sys_errtostr(err)); 80 return 1; 81 } 82 83 notify_flags_t flags = process_notifications(process); 84 notify_values_t values = process_notification_values(process); 85 86 printf("Notified with flags: %" pFMTnotify_flags "x\n", flags); 87 printf("Notified with values: %ld, %ld\n", values.sig, values.val); 88 89 printf("End of test.\n"); 90 return 0; 91 } 92 93 /* vim: tabstop=2 expandtab shiftwidth=2 94 */