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addsrch |
Portability: | SAS/C extension |
SYNOPSIS | |
DESCRIPTION | |
RETURN VALUE | |
USAGE NOTES | |
EXAMPLE |
SYNOPSIS |
#include <dynam.h> SEARCH_P addsrch(int type, const char *loc, const char *prefix);
DESCRIPTION |
addsrch
adds a location to the list of locations
from which modules can be loaded. This list controls the search order for
modules loaded from a call to
loadm
.
addsrch
does not verify the existence of the
location.
The first argument,
type
, must be a module type defined in
<dynam.h>
. The module type defines what type of module is loaded and can vary
from operating system to operating system. The character string specified
by the second argument,
loc
, names the
location. All location strings may have leading and trailing blanks, and all
characters are converted to an uppercase format. The format of this string
depends on the module type.
The search order can be described additionally by the
third argument,
prefix
. The
prefix
argument is a character string of no more than eight characters.
prefix
may be null (""), but if it not, then
it specifies that the location indicated is searched only if the load module
name (as specified by the
type
argument
to
loadm
) begins with the same character
or characters specified in
prefix
.
Under OS/390, the module type,
type
, controls the format of the second argument,
loc
, which names the location to be searched by
loadm
. The module type may
be either
MVS_DD
or
MVS_DSN
:
MVS_DD
-
The location parameter must be a previously allocated DDname, either through
JCL or dynamically.
MVS_DSN
-
The location parameter must be a fully qualified dataset name.
Under CMS, the defined module types for the first argument,
type
, are the
following:
CMS_NUCX
-
Specifies that the module is a nucleus extension. The module has been loaded
(for example, by the CMS command NUCXLOAD) before
loadm
is called.
CMS_LDLB
-
Specifies that the module is a member of a CMS LOADLIB file. The LOADLIB file
must be on an accessible disk when
loadm
is called.
CMS_DCSS
-
Specifies that the module resides in a named segment that has been created
using the GENCSEG utility, as documented in "The CMS GENCSEG Utility"
in Appendix 3, of the
SAS/C Compiler and Library User's Guide.
The module type also controls the format of the second
argument,
loc
. The
loc
argument identifies the location to be searched by
loadm
. For the following the module types, the
loc
argument is:
CMS_NUCX
CMS_LDLB
LOADLIB
file in the form filename filemode, for example, DYNAMC A1 specifies the file, DYNAMC
LOADLIB A1. The filemode may be an asterisk (*).
CMS_DCSS
sp = addsrch(CMS_LDLB, "DYNAMC *","")
RETURN VALUE |
addsrch
returns a value that can be passed to
delsrch
to delete the input source. This is a value of the defined type
SEARCH_P
, which can be passed to
delsrch
to remove the location from the search order. If an error occurs,
a value of 0 is returned.
USAGE NOTES |
addsrch
does not verify that a location exists or that load modules may be loaded
from that location. The
loadm
function
searches in the location only if the load module cannot be loaded from a location
higher in the search order.
addsrch
fails
only if its parameters are ill-formed.
EXAMPLE |
#include <dynam.h> SEARCH_P mylib; . . . /* Search for modules in a CMS LOADLIB. */ mylib=addsrch(CMS_LDLB, "PRIVATE *", ""); /* Search for modules in a MVS dataset. */ mylib=addsrch(MVS_DSN, "SYS1.LINKLIB", "");
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Copyright © 2001 by SAS Institute Inc., Cary, NC, USA. All rights reserved.