minix/lib/libsys/getsysinfo.c
Lionel Sambuc ec130c9b4b Message type for {PM,VFS,RS,DS}_GETSYSINFO
Change-Id: I64d89f8a1c4704d0d0f420eb1e434cc96fd6351a
2014-07-28 17:05:45 +02:00

32 lines
756 B
C

#include "syslib.h"
#include <string.h>
#include <minix/sysinfo.h>
#include <minix/com.h>
int getsysinfo(
endpoint_t who, /* from whom to request info */
int what, /* what information is requested */
void *where, /* where to put it */
size_t size /* how big it should be */
)
{
message m;
int call_nr;
switch (who) {
case PM_PROC_NR: call_nr = PM_GETSYSINFO; break;
case VFS_PROC_NR: call_nr = VFS_GETSYSINFO; break;
case RS_PROC_NR: call_nr = RS_GETSYSINFO; break;
case DS_PROC_NR: call_nr = DS_GETSYSINFO; break;
default:
return ENOSYS;
}
memset(&m, 0, sizeof(m));
m.m_lsys_getsysinfo.what = what;
m.m_lsys_getsysinfo.where = where;
m.m_lsys_getsysinfo.size = size;
return _taskcall(who, call_nr, &m);
}