lib/libsys/taskcall.c

   1 /* _taskcall() is the same as _syscall() except it returns negative error
   2  * codes directly and not in errno.  This is a better interface for PM and
   3  * VFS.
   4  */
   5
   6 #include <lib.h>
   7 #include <minix/syslib.h>
   8
   9 int _sendcall(endpoint_t who, int type, message *msgptr)
  10 {
  11   msgptr->m_type = type;
  12   return send(who, msgptr);
  13 }
  14
  15
  16 int _taskcall(who, syscallnr, msgptr)
  17 endpoint_t who;
  18 int syscallnr;
  19 register message *msgptr;
  20 {
  21   int status;
  22
  23   msgptr->m_type = syscallnr;
  24   status = sendrec(who, msgptr);
  25   if (status != 0) return(status);
  26   return(msgptr->m_type);
  27 }