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WINGs: Modernize wusleep()

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- Change the wusleep abomination to be a simple wrapper around
  nanosleep (man says it's been POSIX for almost a decade)
- Remove autoconf tests that became unnecessary along the way

Signed-off-by: Tamas TEVESZ <ice@extreme.hu>
This commit is contained in:
Tamas TEVESZ
2010-09-29 02:52:19 +02:00
committed by Carlos R. Mafra
parent de9fcef214
commit 1420e44bb1
3 changed files with 22 additions and 45 deletions
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2
WINGs/WINGs/WUtil.h
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@@ -248,7 +248,7 @@ WMRange wmkrange(int start, int count);
/* ---[ WINGs/usleep.c ]-------------------------------------------------- */
void wusleep(unsigned int microsec);
void wusleep(unsigned int usec);
/* ---[ WINGs/handlers.c ]------------------------------------------------ */

59
WINGs/usleep.c
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@@ -1,46 +1,25 @@
#include <errno.h>
#include <time.h>
#include "wconfig.h"
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <unistd.h>
#include <string.h>
#if defined(HAVE_SELECT)
#ifdef HAVE_SYS_SELECT_H
# include <sys/select.h>
#endif
void wusleep(unsigned int microsecs)
void wusleep(unsigned int usec)
{
struct timeval tv;
fd_set rd, wr, ex;
FD_ZERO(&rd);
FD_ZERO(&wr);
FD_ZERO(&ex);
tv.tv_sec = microsecs / 1000000u;
tv.tv_usec = microsecs % 1000000u;
select(1, &rd, &wr, &ex, &tv);
struct timespec tm;
/* An arbitrary limit of 10 minutes -- in WM, if
* somethings wants to sleep anything even close to
* this, it's most likely an error.
*/
if (usec > 600000000)
return;
tm.tv_sec = usec / 1000000;
tm.tv_nsec = usec % 1000000;
while (nanosleep(&tm, &tm) == -1 && errno == EINTR)
;
}
#else /* not HAVE_SELECT */
# ifdef HAVE_POLL
void wusleep(unsigned int microsecs)
{
poll((struct poll *)0, (size_t) 0, microsecs / 1000);
}
# else /* ! HAVE_POLL */
oops !
# endif /* !HAVE_POLL */
#endif /* !HAVE_SELECT */

6
configure.ac
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@@ -230,10 +230,8 @@ dnl Checks for header files.
dnl =======================
AC_HEADER_SYS_WAIT
AC_HEADER_TIME
AC_CHECK_HEADERS(fcntl.h limits.h sys/ioctl.h sys/time.h sys/types.h \
libintl.h sys/select.h poll.h malloc.h ctype.h string.h \
strings.h)
AC_CHECK_HEADERS(fcntl.h limits.h sys/ioctl.h libintl.h poll.h malloc.h ctype.h \
string.h strings.h)
dnl Checks for typedefs, structures, and compiler characteristics.