2 * Server-side snapshots
4 * Copyright (C) 1999 Alexandre Julliard
6 * FIXME: only process snapshots implemented for now
25 struct object obj
; /* object header */
26 struct process_snapshot
*process
; /* processes snapshot */
27 int process_count
; /* count of processes */
28 int process_pos
; /* current position in proc snapshot */
31 static void snapshot_dump( struct object
*obj
, int verbose
);
32 static void snapshot_destroy( struct object
*obj
);
34 static const struct object_ops snapshot_ops
=
36 sizeof(struct snapshot
),
39 NULL
, /* should never get called */
40 NULL
, /* should never get called */
41 NULL
, /* should never get called */
50 /* create a new snapshot */
51 static struct snapshot
*create_snapshot( int flags
)
53 struct snapshot
*snapshot
;
55 if ((snapshot
= alloc_object( &snapshot_ops
)))
57 if (flags
& TH32CS_SNAPPROCESS
)
58 snapshot
->process
= process_snap( &snapshot
->process_count
);
60 snapshot
->process_count
= 0;
61 snapshot
->process_pos
= 0;
66 /* get the next process in the snapshot */
67 static int snapshot_next_process( struct snapshot
*snapshot
, struct next_process_request
*req
)
69 struct process_snapshot
*ptr
;
71 if (!snapshot
->process_count
)
73 set_error( ERROR_INVALID_PARAMETER
); /* FIXME */
76 if (req
->reset
) snapshot
->process_pos
= 0;
77 else if (snapshot
->process_pos
>= snapshot
->process_count
)
79 set_error( ERROR_NO_MORE_FILES
);
82 ptr
= &snapshot
->process
[snapshot
->process_pos
++];
83 req
->pid
= ptr
->process
;
84 req
->threads
= ptr
->threads
;
85 req
->priority
= ptr
->priority
;
89 static void snapshot_dump( struct object
*obj
, int verbose
)
91 struct snapshot
*snapshot
= (struct snapshot
*)obj
;
92 assert( obj
->ops
== &snapshot_ops
);
93 fprintf( stderr
, "Snapshot: %d processes\n",
94 snapshot
->process_count
);
97 static void snapshot_destroy( struct object
*obj
)
100 struct snapshot
*snapshot
= (struct snapshot
*)obj
;
101 assert( obj
->ops
== &snapshot_ops
);
102 if (snapshot
->process_count
)
104 for (i
= 0; i
< snapshot
->process_count
; i
++)
105 release_object( snapshot
->process
[i
].process
);
106 free( snapshot
->process
);
110 /* create a snapshot */
111 DECL_HANDLER(create_snapshot
)
113 struct snapshot
*snapshot
;
116 if ((snapshot
= create_snapshot( req
->flags
)))
118 req
->handle
= alloc_handle( current
->process
, snapshot
, 0, req
->inherit
);
119 release_object( snapshot
);
123 /* get the next process from a snapshot */
124 DECL_HANDLER(next_process
)
126 struct snapshot
*snapshot
;
128 if ((snapshot
= (struct snapshot
*)get_handle_obj( current
->process
, req
->handle
,
131 snapshot_next_process( snapshot
, req
);
132 release_object( snapshot
);