Open System Services Programmer's Guide

Table 20 OSS Interprocess-Communication Functions (continued)
Guardian NotesOSS NotesOSS Function
directory; otherwise, the group ID is
set to the effective group ID of the
calling process. G file system.
OSS SEEP consultation.
Sets errno to the ENOTOSS value
when called from a Guardian process.
Can return extended errors.msgctl()
Performs message queue control
operations.
Sets errno to the ENOTOSS value
when called from a Guardian process.
Can return extended errors.msgget()
Creates or returns the identifier for a
message queue.
Sets errno to the ENOTOSS value
when called from a Guardian process.
Can return extended errors.msgrcv()
Reads a message from a message
queue.
Sets errno to the ENOTOSS value
when called from a Guardian process.
Can return extended errors.msgsnd()
Sends a message to a message queue.
Can return extended errors.pclose()
Closes a pipe to a process that was
opened using popen().
FDM set.Can return extended errors.pipe()
Creates an interprocess channel.
Sets errno to the ENOTOSS value
when called from a Guardian process.
Can return extended errors.popen()
Initiates a pipe to a process.
Can return extended errors.recv()
Receives a message from a connected
socket.
Can return extended errors.recv64()
Beginning with the H06.24 and
J06.13 RVUs.
Receives a message from a connected
socket.
Can return extended errors.recvfrom()
Receives a message from a socket.
Can return extended errors.recvfrom64()
Beginning with the H06.24 and
J06.13 RVUs.
Receives a message from a socket.
Can return extended errors.recvmsg(
) Receives a message from a socket
using a message structure.
Can return extended errors.recvmsg64()
Beginning with the H06.24 and
J06.13 RVUs.
Receives a message from a socket
using a message structure.
Sets errno to the ENOTOSS value
when called from a Guardian process.
Can return extended errors.semctl()
Performs semaphore control
operations.
Sets errno to the ENOTOSS value
when called from a Guardian process.
Can return extended errors.semget()
Creates a new semaphore set ID or
returns the ID of an existing semaphore
set.
198 Interprocess Communication