memcheck/tests/linux/syscalls-2007.c

   1 /**
   2  * Test program for some Linux syscalls introduced during 2006 and 2007:
   3  * - epoll_pwait() was introduced in the 2.6.19 kernel, released in November
   4  *     2006.
   5  * - utimensat(), eventfd(), timerfd() and signalfd() were introduced in the
   6  *     2.6.22 kernel, released in July 2007.
   7  *
   8  * See also http://bugs.kde.org/show_bug.cgi?id=160907.
   9  */
  10
  11 #define _GNU_SOURCE
  12
  13 #include "../../config.h"
  14 #include <fcntl.h>
  15 #include <signal.h>
  16 #include <stdint.h>
  17 #if defined(HAVE_SYS_EPOLL_H)
  18 #include <sys/epoll.h>
  19 #endif
  20 #if defined(HAVE_SYS_EVENTFD_H)
  21 #include <sys/eventfd.h>
  22 #endif
  23 #include <poll.h>
  24 #if defined(HAVE_SYS_SIGNALFD_H)
  25 #include <sys/signalfd.h>
  26 #endif
  27 #include <sys/stat.h>
  28 #include <unistd.h>
  29
  30 int main (void)
  31 {
  32 #if defined(HAVE_SIGNALFD) && defined(HAVE_EVENTFD) \
  33     && defined(HAVE_EVENTFD_READ) && defined(HAVE_PPOLL)
  34   {
  35     sigset_t mask;
  36     int fd, fd2;
  37     eventfd_t ev;
  38     struct timespec ts = { .tv_sec = 1, .tv_nsec = 0 };
  39     struct pollfd pfd[2];
  40
  41     sigemptyset (&mask);
  42     sigaddset (&mask, SIGUSR1);
  43     fd = signalfd (-1, &mask, 0);
  44     sigaddset (&mask, SIGUSR2);
  45     fd = signalfd (fd, &mask, 0);
  46     fd2 = eventfd (5, 0);
  47     eventfd_read (fd2, &ev);
  48     pfd[0].fd = fd;
  49     pfd[0].events = POLLIN|POLLOUT;
  50     pfd[1].fd = fd2;
  51     pfd[1].events = POLLIN|POLLOUT;
  52     ppoll (pfd, 2, &ts, &mask);
  53   }
  54 #endif
  55
  56 #if defined(HAVE_UTIMENSAT)
  57   unlink("/tmp/valgrind-utimensat-test");
  58   close (creat ("/tmp/valgrind-utimensat-test", S_IRUSR | S_IWUSR));
  59   {
  60     struct timespec ts2[2] = { [0].tv_sec = 10000000, [1].tv_sec = 20000000 };
  61     utimensat (AT_FDCWD, "/tmp/valgrind-utimensat-test", ts2, 0);
  62   }
  63   unlink("/tmp/valgrind-utimensat-test");
  64 #endif
  65
  66 #if defined(HAVE_EPOLL_CREATE) && defined(HAVE_EPOLL_PWAIT)
  67   {
  68     int fd3;
  69     struct epoll_event evs[10];
  70     sigset_t mask;
  71
  72     sigemptyset (&mask);
  73     sigaddset (&mask, SIGUSR1);
  74     sigaddset (&mask, SIGUSR2);
  75     fd3 = epoll_create (10);
  76     epoll_pwait (fd3, evs, 10, 0, &mask);
  77   }
  78 #endif
  79
  80 #if defined(HAVE_EPOLL_CREATE) && defined(HAVE_EPOLL_PWAIT)
  81   {
  82     int fd3;
  83     struct epoll_event evs[10];
  84
  85     fd3 = epoll_create (10);
  86     /* epoll_pwait can take a NULL sigmask. */
  87     epoll_pwait (fd3, evs, 10, 1, NULL);
  88   }
  89 #endif
  90
  91   return 0;
  92 }