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putctl1(9r)							   putctl1(9r)

NAME
       putctl1 - Puts a control message with a 1-byte parameter on a queue

SYNOPSIS
       #include <sys/stream.h>

       int putctl1(
	       queue_t *queue_pointer,
	       int type,
	       int parameter );

ARGUMENTS
       Specifies  a  pointer  to the queue to which the message is to be sent.
       The typedef queue_t is an alternate  name  for  struct  queue_entry  *.
       Specifies a message type (must be control and not a data type).	Speci‐
       fies a 1-byte parameter.

DESCRIPTION
       Like the putctl interface, the putctl1 interface tests the  type	 argu‐
       ment  to	 make  sure a data type was not specified. It then attempts to
       allocate a message block. In addition, the putctl1 interface can send a
       1-byte  parameter  in the parameter argument. You can use the parameter
       for any purpose. For example, you can use this argument to specify  how
       long  the  delay	 will  be when sending an M_DELAY message. The putctl1
       interface fails if a message block cannot be allocated or if  the  type
       argument is M_DELAY, M_PROTO, or M_PCPROTO.

NOTES
       The  putctl1  interface calls the putctl_comm interface, which actually
       performs the work of sending the control message.

RETURN VALUES
       Upon successful completion, putctl1 returns the value  1.  The  putctl1
       interface  fails	 if a message block cannot be allocated or if the type
       argument is M_DELAY, M_PROTO, or M_PCPROTO.

SEE ALSO
       Kernel Interfaces: allocb(9r), datamsg(9r), putctl(9r)

       Programmer's Guide: STREAMS

								   putctl1(9r)

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