minix/lib/libsys/sys_vumap.c

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#include "syslib.h"
/*===========================================================================*
* sys_vumap *
*===========================================================================*/
2012-03-25 20:25:53 +02:00
int sys_vumap(
endpoint_t endpt, /* source process endpoint, or SELF */
struct vumap_vir *vvec, /* virtual (input) vector */
int vcount, /* number of elements in vvec */
size_t offset, /* offset into first vvec element */
int access, /* requested safecopy access flags */
struct vumap_phys *pvec, /* physical (output) vector */
int *pcount /* (max, returned) nr of els in pvec */
)
{
message m;
int r;
m.m_lsys_krn_sys_vumap.endpt = endpt;
m.m_lsys_krn_sys_vumap.vaddr = (vir_bytes) vvec;
m.m_lsys_krn_sys_vumap.vcount = vcount;
m.m_lsys_krn_sys_vumap.offset = offset;
m.m_lsys_krn_sys_vumap.access = access;
m.m_lsys_krn_sys_vumap.paddr = (vir_bytes) pvec;
m.m_lsys_krn_sys_vumap.pmax = *pcount;
r = _kernel_call(SYS_VUMAP, &m);
if (r != OK)
return r;
*pcount = m.m_krn_lsys_sys_vumap.pcount;
return OK;
}