minix/lib/libsys/fkey_ctl.c
David van Moolenbroek 80bd109cd3 libsys: various updates
- move system calls for use by services from libminlib into libsys;
- move srv_fork(2) and srv_kill(2) from RS and into libsys;
- replace getprocnr(2) with sef_self(3);
- rename previous getnprocnr(2) to getprocnr(2);
- clean up getepinfo(2);
- change all libsys calls that used _syscall to use _taskcall, so as
  to avoid going through errno to pass errors; this is already how
  most calls work anyway, and many of the calls previously using
  _syscall were already assumed to return the actual error;
- initialize request messages to zero, for future compatibility
  (note that this does not include PCI calls, which are in need of a
  much bigger overhaul, nor kernel calls);
- clean up more of dead DS code as a side effect.

Change-Id: I8788f54c68598fcf58e23486e270c2d749780ebb
2014-03-01 09:05:00 +01:00

30 lines
1,002 B
C

#include "sysutil.h"
#include <string.h>
/*===========================================================================*
* fkey_ctl *
*===========================================================================*/
int fkey_ctl(request, fkeys, sfkeys)
int request; /* request to perform */
int *fkeys; /* bit masks for F1-F12 keys */
int *sfkeys; /* bit masks for Shift F1-F12 keys */
{
/* Send a message to the TTY server to request notifications for function
* key presses or to disable notifications. Enabling succeeds unless the key
* is already bound to another process. Disabling only succeeds if the key is
* bound to the current process.
*/
message m;
int s;
memset(&m, 0, sizeof(m));
m.FKEY_REQUEST = request;
m.FKEY_FKEYS = (fkeys) ? *fkeys : 0;
m.FKEY_SFKEYS = (sfkeys) ? *sfkeys : 0;
s = _taskcall(TTY_PROC_NR, TTY_FKEY_CONTROL, &m);
if (fkeys) *fkeys = m.FKEY_FKEYS;
if (sfkeys) *sfkeys = m.FKEY_SFKEYS;
return(s);
}