2 * Server-side snapshots
4 * Copyright (C) 1999 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * FIXME: heap snapshots not implemented
24 #include "wine/port.h"
40 struct object obj; /* object header */
41 struct process *process; /* process of this snapshot (for modules and heaps) */
42 struct process_snapshot *processes; /* processes snapshot */
43 int process_count; /* count of processes */
44 int process_pos; /* current position in proc snapshot */
45 struct thread_snapshot *threads; /* threads snapshot */
46 int thread_count; /* count of threads */
47 int thread_pos; /* current position in thread snapshot */
48 struct module_snapshot *modules; /* modules snapshot */
49 int module_count; /* count of modules */
50 int module_pos; /* current position in module snapshot */
53 static void snapshot_dump( struct object *obj, int verbose );
54 static void snapshot_destroy( struct object *obj );
56 static const struct object_ops snapshot_ops =
58 sizeof(struct snapshot), /* size */
59 snapshot_dump, /* dump */
60 no_add_queue, /* add_queue */
61 NULL, /* remove_queue */
64 no_get_fd, /* get_fd */
65 snapshot_destroy /* destroy */
69 /* create a new snapshot */
70 static struct snapshot *create_snapshot( process_id_t pid, int flags )
72 struct process *process = NULL;
73 struct snapshot *snapshot;
75 /* need a process for modules and heaps */
76 if (flags & (SNAP_MODULE|SNAP_HEAPLIST))
78 if (!pid) process = (struct process *)grab_object( current->process );
79 else if (!(process = get_process_from_id( pid ))) return NULL;
82 if (!(snapshot = alloc_object( &snapshot_ops )))
84 if (process) release_object( process );
88 snapshot->process = process;
90 snapshot->process_pos = 0;
91 snapshot->process_count = 0;
92 if (flags & SNAP_PROCESS)
93 snapshot->processes = process_snap( &snapshot->process_count );
95 snapshot->thread_pos = 0;
96 snapshot->thread_count = 0;
97 if (flags & SNAP_THREAD)
98 snapshot->threads = thread_snap( &snapshot->thread_count );
100 snapshot->module_pos = 0;
101 snapshot->module_count = 0;
102 if (flags & SNAP_MODULE)
103 snapshot->modules = module_snap( process, &snapshot->module_count );
108 /* get the next process in the snapshot */
109 static int snapshot_next_process( struct snapshot *snapshot, struct next_process_reply *reply )
111 struct process_snapshot *ptr;
113 if (!snapshot->process_count)
115 set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
118 if (snapshot->process_pos >= snapshot->process_count)
120 set_error( STATUS_NO_MORE_FILES );
123 ptr = &snapshot->processes[snapshot->process_pos++];
124 reply->count = ptr->count;
125 reply->pid = get_process_id( ptr->process );
126 reply->ppid = ptr->process->parent ? get_process_id( ptr->process->parent ) : 0;
127 reply->heap = 0; /* FIXME */
128 reply->module = 0; /* FIXME */
129 reply->threads = ptr->threads;
130 reply->priority = ptr->priority;
131 reply->handles = ptr->handles;
132 if (ptr->process->exe.filename)
134 size_t len = min( ptr->process->exe.namelen, get_reply_max_size() );
135 set_reply_data( ptr->process->exe.filename, len );
140 /* get the next thread in the snapshot */
141 static int snapshot_next_thread( struct snapshot *snapshot, struct next_thread_reply *reply )
143 struct thread_snapshot *ptr;
145 if (!snapshot->thread_count)
147 set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
150 if (snapshot->thread_pos >= snapshot->thread_count)
152 set_error( STATUS_NO_MORE_FILES );
155 ptr = &snapshot->threads[snapshot->thread_pos++];
156 reply->count = ptr->count;
157 reply->pid = get_process_id( ptr->thread->process );
158 reply->tid = get_thread_id( ptr->thread );
159 reply->base_pri = ptr->priority;
160 reply->delta_pri = 0; /* FIXME */
164 /* get the next module in the snapshot */
165 static int snapshot_next_module( struct snapshot *snapshot, struct next_module_reply *reply )
167 struct module_snapshot *ptr;
169 if (!snapshot->module_count)
171 set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
174 if (snapshot->module_pos >= snapshot->module_count)
176 set_error( STATUS_NO_MORE_FILES );
179 ptr = &snapshot->modules[snapshot->module_pos++];
180 reply->pid = get_process_id( snapshot->process );
181 reply->base = ptr->base;
182 reply->size = ptr->size;
185 size_t len = min( ptr->namelen, get_reply_max_size() );
186 set_reply_data( ptr->filename, len );
191 static void snapshot_dump( struct object *obj, int verbose )
193 struct snapshot *snapshot = (struct snapshot *)obj;
194 assert( obj->ops == &snapshot_ops );
195 fprintf( stderr, "Snapshot: %d procs %d threads %d modules\n",
196 snapshot->process_count, snapshot->thread_count, snapshot->module_count );
199 static void snapshot_destroy( struct object *obj )
202 struct snapshot *snapshot = (struct snapshot *)obj;
203 assert( obj->ops == &snapshot_ops );
204 if (snapshot->process_count)
206 for (i = 0; i < snapshot->process_count; i++)
207 release_object( snapshot->processes[i].process );
208 free( snapshot->processes );
210 if (snapshot->thread_count)
212 for (i = 0; i < snapshot->thread_count; i++)
213 release_object( snapshot->threads[i].thread );
214 free( snapshot->threads );
216 if (snapshot->module_count)
218 for (i = 0; i < snapshot->module_count; i++)
219 free( snapshot->modules[i].filename );
220 free( snapshot->modules );
222 if (snapshot->process) release_object( snapshot->process );
225 /* create a snapshot */
226 DECL_HANDLER(create_snapshot)
228 struct snapshot *snapshot;
231 if ((snapshot = create_snapshot( req->pid, req->flags )))
233 reply->handle = alloc_handle( current->process, snapshot, 0, req->inherit );
234 release_object( snapshot );
238 /* get the next process from a snapshot */
239 DECL_HANDLER(next_process)
241 struct snapshot *snapshot;
243 if ((snapshot = (struct snapshot *)get_handle_obj( current->process, req->handle,
246 if (req->reset) snapshot->process_pos = 0;
247 snapshot_next_process( snapshot, reply );
248 release_object( snapshot );
252 /* get the next thread from a snapshot */
253 DECL_HANDLER(next_thread)
255 struct snapshot *snapshot;
257 if ((snapshot = (struct snapshot *)get_handle_obj( current->process, req->handle,
260 if (req->reset) snapshot->thread_pos = 0;
261 snapshot_next_thread( snapshot, reply );
262 release_object( snapshot );
266 /* get the next module from a snapshot */
267 DECL_HANDLER(next_module)
269 struct snapshot *snapshot;
271 if ((snapshot = (struct snapshot *)get_handle_obj( current->process, req->handle,
274 if (req->reset) snapshot->module_pos = 0;
275 snapshot_next_module( snapshot, reply );
276 release_object( snapshot );