개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

datamsg(9f)

datamsg(9F)                    Kernel Functions                    datamsg(9F)



NAME
       datamsg - test whether a message is a data message

SYNOPSIS
       #include <sys/stream.h>
       #include <sys/ddi.h>

       int datamsg(unsigned char type);

INTERFACE LEVEL
       Architecture independent level 1 (DDI/DKI).

PARAMETERS
       type    The  type  of  message  to  be tested. The db_type field of the
               datab(9S) structure contains the message type. This  field  may
               be     accessed     through    the    message    block    using
               mp->b_datap->db_type.


DESCRIPTION
       The datamsg() function tests the type of message to determine if it  is
       a data message type (M_DATA, M_DELAY, M_PROTO , or M_PCPROTO).

RETURN VALUES
       datamsg returns

       1    if the message is a data message


       0    otherwise.


CONTEXT
       The  datamsg()  function  can be called from user, interrupt, or kernel
       context.

EXAMPLES
       The put(9E) routine enqueues all data  messages  for  handling  by  the
       srv(9E)  (service)  routine.  All  non-data messages are handled in the
       put(9E) routine.

         1 xxxput(q, mp)
         2      queue_t *q;
         3      mblk_t *mp;
         4 {
         5    if (datamsg(mp->b_datap->db_type)) {
         6            putq(q, mp);
         7            return;
         8    }
         9    switch (mp->b_datap->db_type) {
         10    case M_FLUSH:
                          ...
         11    }
         12 }


SEE ALSO
       put(9E), srv(9E), allocb(9F), datab(9S), msgb(9S)


       Writing Device Drivers in Oracle Solaris 11.4


       STREAMS Programming Guide



Oracle Solaris 11.4               16 Jan 2006                      datamsg(9F)