selintr.c (1201B)
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 /* 7 * Test whether classic NSPR's select() wrapper properly blocks 8 * the periodic SIGALRM clocks. On some platforms (such as 9 * HP-UX and SINIX) an interrupted select() system call is 10 * restarted with the originally specified timeout, ignoring 11 * the time that has elapsed. If a select() call is interrupted 12 * repeatedly, it will never time out. (See Bugzilla bug #39674.) 13 */ 14 15 #if !defined(XP_UNIX) 16 17 /* 18 * This test is applicable to Unix only. 19 */ 20 21 int main() { return 0; } 22 23 #else /* XP_UNIX */ 24 25 # include "nspr.h" 26 27 # include <sys/time.h> 28 # include <stdio.h> 29 30 int main(int argc, char** argv) { 31 struct timeval timeout; 32 int rv; 33 34 PR_SetError(0, 0); /* force NSPR to initialize */ 35 PR_EnableClockInterrupts(); 36 37 /* 2 seconds timeout */ 38 timeout.tv_sec = 2; 39 timeout.tv_usec = 0; 40 rv = select(1, NULL, NULL, NULL, &timeout); 41 printf("select returned %d\n", rv); 42 return 0; 43 } 44 45 #endif /* XP_UNIX */