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.TH pbs_statnode 3B "2 February 2016" Local "PBS Professional"
.SH NAME
.B pbs_statnode, pbs_statvnode, pbs_stathost
\- obtain status of PBS vnodes or hosts
.SH SYNOPSIS
#include <pbs_error.h>
.br
#include <pbs_ifl.h>
.sp
.B struct batch_status *pbs_stathost(\^int\ connect, char\ *id, struct\ attrl\ *attrib, char\ *extend)
.sp
.B struct batch_status *pbs_statnode(\^int\ connect, char\ *id, struct\ attrl\ *attrib, char\ *extend)
.sp
.B struct batch_status *pbs_statvnode(\^int\ connect, char\ *id, struct\ attrl\ *attrib, char\ *extend)
.sp
.B void pbs_statfree(\^struct batch_status *psj\^)

.SH DESCRIPTION
Issue a batch request to obtain the status of PBS execution hosts or vnodes.
.LP
pbs_stathost returns information about the single host named in the call or
about all hosts known to the PBS Server.
.LP
pbs_statnode is identical to pbs_stathost in function.   It is retained for
backward compatibility.
.LP
pbs_statvnode returns information about the single virtual node (vnode) named
in the call or about all vnodes  known to the PBS Server.
.LP
A
.I "Status Node"
batch request is generated and sent to the server over the connection
specified by
.I connect 
which is the return value of \f3pbs_connect\f1().
.LP
The 
.I id
is the name of a host for pbs_stathost, or a vnode for pbs_statvnode,
or the null string.  If 
.I id
specifies a name, the status of that host or vnode will be returned.  If the
.I id
is a null string (or null pointer), the status of all hosts or
vnodes at the server will be returned.
.LP
The parameter,
.I attrib ,
is a pointer to an
.I attrl 
structure which is defined in pbs_ifl.h as:
.sp
.Ty
.nf
    struct attrl {
        struct attrl *next;
        char         *name;
        char         *resource;
        char         *value;
    };
.fi
.sp
The
.I attrib
list is terminated by the first entry where
.I next
is a null pointer.  If 
.I attrib
is given, then only the attributes in the list are returned by the server.
Otherwise, all the attributes of a node are returned.
When an
.I attrib
list is specified, the
.I name
member is a pointer to an attribute name.
The
.I resource
member is not used and must be a pointer to a null string.
The
.I value
member should always be a pointer to a null string.
.LP
The parameter,
.I extend ,
is reserved for implementation-defined extensions.
.LP
The return value is a pointer to a list of
.I batch_status
structures, which is defined in pbs_ifl.h as:
.sp
.Ty
.nf
    struct batch_status {
        struct batch_status *next;
        char                *name;
        struct attrl        *attribs;
        char                *text;
    }
.fi
.LP
It is up the user to free the structure when no longer needed, by calling
\f3pbs_statfree\f1().
.LP

The vnode state value can be one or more comma-separated strings.
All vnode states are documented in the pbs_node_attributes.7B man page.

.SH DIAGNOSTICS
When the batch request generated by 
.B "pbs_stathost(), pbs_statnode(),"
or
.B pbs_statvnode()
function has been completed successfully by a batch server, the routine will
return a pointer to the batch_status structure.
Otherwise, a null pointer is returned and the error code
is set in the global integer pbs_errno.

.SH SEE ALSO
qstat(1B),
pbs_connect(3B)