Reference Guide

ZCOM C I/F Library Routines
ZPEEK (3X)
Chapter 4 275
Threads
Considerations
This routine may be called from a multi-threaded application using the
POSIX (1003.1c) kernel threads API package. This routine has the
following characteristics when called by a multi-threaded application:
RETURN VALUE Routine zopen returns 0 if successful. Otherwise, a non-zero error code
is returned. See /opt/acc/include/zcom/zcomsys.h for the list of ZCOM
error codes and their meanings.
FILES
SEE ALSO zread(3X), zluopen(3X)
cancellation point Thread cancellation can occur when a thread
calls this routine.
async-cancel unsafe The calling thread’s cancelability type must be
PTHREAD_CANCEL_DEFERRED if
cancellation is enabled.
async-signal unsafe It cannot be called from a signal handler.
fork unsafe It cannot be called by a child process after
fork(2) but before exec(2).
/opt/acc/include/zcom/zcomsys.h ZCOM subsystem general include
file, containing data types, data
structures, constants, error codes,
masks, etc. Note that this must be the
first include file before any other
ZCOM include files.
/opt/acc/include/zcom/zcomcall.h ZCOM routine function prototypes
(requires ANSI C (compilation).