MrmOpenHierarchyFromBuffer(library call) MrmOpenHierarchyFromBuffer(library call)
NAME
MrmOpenHierarchyFromBuffer -- Allocates a hierarchy ID and opens a buffer containing a memory image of a UID file
SYNOPSIS
#include <Mrm/MrmPublic.h>
Cardinal MrmOpenHierarchyFromBuffer(
unsigned char uid_buffer,
MrmHierarchy *hierarchy_id);
DESCRIPTION
MrmOpenHierarchyFromBuffer allows you to specify a buffer containing information from UID files that MRM searches in subsequent fetch oper-
ations. This function also allocates a hierarchy ID and initializes the optimized search lists in the hierarchy.
buffer Specifies a stream of bytes containing information from UID files
hierarchy_id
Returns the search hierarchy ID. The search hierarchy ID identifies the buffer that MRM searches when performing subsequent
fetch calls.
RETURN
This function returns one of the following status return constants:
MrmSUCCESS
The function executed successfully.
MrmFAILURE
The function failed.
RELATED MrmCloseHierarchy(3) and MrmOpenHierarchyPerDisplay(3).
MrmOpenHierarchyFromBuffer(library call)
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MrmOpenHierarchyPerDisplay(library call) MrmOpenHierarchyPerDisplay(library call)
NAME
MrmOpenHierarchyPerDisplay -- Allocates a hierarchy ID and opens all the UID files in the hierarchy
SYNOPSIS
#include <Mrm/MrmPublic.h>
Cardinal MrmOpenHierarchyPerDisplay(
Display *display,
MrmCount num_files,
String file_names_list[],
MrmOsOpenParamPtr *ancillary_structures_list,
MrmHierarchy *hierarchy_id);
DESCRIPTION
MrmOpenHierarchyPerDisplay allows you to specify the list of UID files that MRM searches in subsequent fetch operations. All subsequent
fetch operations return the first occurrence of the named item encountered while traversing the UID hierarchy from the first list element
(UID file specification) to the last list element. This function also allocates a hierarchy ID and opens all the UID files in the hierar-
chy. It initializes the optimized search lists in the hierarchy. If MrmOpenHierarchyPerDisplay encounters any errors during its execu-
tion, any files that were opened are closed.
The application must call XtAppInitialize before calling MrmOpenHierarchyPerDisplay.
display Specifies the connection to the X server and the value to pass to XtResolvePathname. For more information on the Display struc-
ture, see the Xlib function XOpenDisplay.
num_files Specifies the number of files in the name list.
file_names_list
Specifies an array of character strings that identify the UID files.
ancillary_structures_list
A list of operating-system-dependent ancillary structures corresponding to items such as filenames, clobber flags, and so forth.
This argument should be NULL for most operations. If you need to reference this structure, see the definition of MrmOsOpen-
ParamPtr in the MrmPublic.h header file for more information.
hierarchy_id
Returns the search hierarchy ID. The search hierarchy ID identifies the list of UID files that MRM searches (in order) when per-
forming subsequent fetch calls.
Each UID file string in file_names_list can specify either a full pathname or a filename. If a UID file string has a leading / (slash), it
specifies a full pathname, and MRM opens the file as specified. Otherwise, the UID file string specifies a filename. In this case MRM
looks for the file along a search path specified by the UIDPATH environment variable or by a default search path, which varies depending on
whether or not the XAPPLRESDIR environment variable is set.
The UIDPATH environment variable specifies a search path and naming conventions associated with UID files. It can contain the substitution
field %U, where the UID file string from the file_names_list argument to MrmOpenHierarchyPerDisplay is substituted for %U. It can also
contain the substitution fields accepted by XtResolvePathname. The substitution field %T is always mapped to uid. The entire path is
searched first with %S mapped to .uid. If no file is found, it is searched again with %S mapped to NULL. For example, the following UID-
PATH value and MrmOpenHierarchyPerDisplay call cause MRM to open two separate UID files:
UIDPATH=/uidlib/%L/%U.uid:/uidlib/%U/%L
static char *uid_files[] = {"/usr/users/me/test.uid", "test2"};
MrmHierarchy *Hierarchy_id;
MrmOpenHierarchyPerDisplay((MrmCount)2,uid_files, NULL, Hierarchy_id)
MRM opens the first file, /usr/users/me/test.uid, as specified in the file_names_list argument to MrmOpenHierarchyPerDisplay, because the
UID file string in the file_names_list argument specifies a full pathname. MRM looks for the second file, test2, first as
/uidlib/%L/test2.uid and second as /uidlib/test2/%L, where the display's language string is substituted for %L.
After MrmOpenHierarchyPerDisplay opens the UID hierarchy, you should not delete or modify the UID files until you close the UID hierarchy
by calling MrmCloseHierarchy.
If UIDPATH is not set, but the environment variable XAPPLRESDIR is set, MRM searches the following pathnames:
o %U%S
o $XAPPLRESDIR/%L/uid/%N/%U%S
o $XAPPLRESDIR/%l/uid/%N/%U%S
o $XAPPLRESDIR/uid/%N/%U%S
o $XAPPLRESDIR/%L/uid/%U%S
o $XAPPLRESDIR/%l/uid/%U%S
o $XAPPLRESDIR/uid/%U%S
o $HOME/uid/%U%S
o $HOME/%U%S
o /usr/lib/X11/%L/uid/%N/%U%S
o /usr/lib/X11/%l/uid/%N/%U%S
o /usr/lib/X11/uid/%N/%U%S
o /usr/lib/X11/%L/uid/%U%S
o /usr/lib/X11/%l/uid/%U%S
o /usr/lib/X11/uid/%U%S
o /usr/include/X11/uid/%U%S
If neither UIDPATH nor XAPPLRESDIR is set, MRM searches the following pathnames:
o %U%S
o $HOME/%L/uid/%N/%U%S
o $HOME/%l/uid/%N/%U%S
o $HOME/uid/%N/%U%S
o $HOME/%L/uid/%U%S
o $HOME/%l/uid/%U%S
o $HOME/uid/%U%S
o $HOME/%U%S
o /usr/lib/X11/%L/uid/%N/%U%S
o /usr/lib/X11/%l/uid/%N/%U%S
o /usr/lib/X11/uid/%N/%U%S
o /usr/lib/X11/%L/uid/%U%S
o /usr/lib/X11/%l/uid/%U%S
o /usr/lib/X11/uid/%U%S
o /usr/include/X11/uid/%U%S
These paths are defaults that vendors may change. For example, a vendor may use different directories for /usr/lib/X11 and
/usr/include/X11.
The following substitutions are used in these paths:
%U The UID file string, from the file_names_list argument.
%N The class name of the application.
%L The display's language string. This string is influenced by XtSetLanguageProc. The default string is determined by calling set-
locale(LC_ALL, NULL).
%l The language component of the display's language string.
%S The suffix to the filename. The entire path is first searched with a suffix of .uid. If no file is found, it is searched again
with a NULL suffix.
RETURN
This function returns one of the following status return constants:
MrmSUCCESS
The function executed successfully.
MrmNOT_FOUND
File not found.
MrmFAILURE
The function failed.
RELATED MrmCloseHierarchy(3).
MrmOpenHierarchyPerDisplay(library call)