/* Check for large timeout with mq_timedsend and mq_timedreceive. Copyright (C) 2021-2024 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include #include #include #include #include #include #include #include static char name[sizeof "/tst-mqueue10-" + INT_BUFSIZE_BOUND (pid_t)]; static void do_cleanup (void) { mq_unlink (name); } #define CLEANUP_HANDLER do_cleanup static int do_test (void) { snprintf (name, sizeof (name), "/tst-mqueue10-%u", getpid ()); char msg[8] = { 0x55 }; struct mq_attr attr = { .mq_maxmsg = 1, .mq_msgsize = sizeof (msg) }; mqd_t q = mq_open (name, O_CREAT | O_EXCL | O_RDWR, 0600, &attr); if (q == (mqd_t) -1) { if (errno == ENOSYS) FAIL_UNSUPPORTED ("mq_open not supported"); printf ("mq_open failed with: %m\n"); return 1; } struct timespec ts = { TYPE_MAXIMUM (time_t), 0 }; { timer_t timer = support_create_timer (0, 100000000, false, NULL); TEST_COMPARE (mq_timedreceive (q, msg, sizeof (msg), NULL, &ts), -1); TEST_VERIFY (errno == EINTR || errno == EOVERFLOW); support_delete_timer (timer); } { timer_t timer = support_create_timer (0, 100000000, false, NULL); /* Fill the internal buffer first. */ TEST_COMPARE (mq_timedsend (q, msg, sizeof (msg), 0, &(struct timespec) { 0, 0 }), 0); TEST_COMPARE (mq_timedsend (q, msg, sizeof (msg), 0, &ts), -1); TEST_VERIFY (errno == EINTR || errno == EOVERFLOW); support_delete_timer (timer); } mq_unlink (name); return 0; } #include