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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 * FIXME: heap snapshots not implemented
24 #include "wine/port.h"
32 #define WIN32_NO_STATUS
44 struct object obj; /* object header */
45 struct process *process; /* process of this snapshot (for modules and heaps) */
46 struct process_snapshot *processes; /* processes snapshot */
47 int process_count; /* count of processes */
48 int process_pos; /* current position in proc snapshot */
49 struct thread_snapshot *threads; /* threads snapshot */
50 int thread_count; /* count of threads */
51 int thread_pos; /* current position in thread snapshot */
52 struct module_snapshot *modules; /* modules snapshot */
53 int module_count; /* count of modules */
54 int module_pos; /* current position in module snapshot */
57 static void snapshot_dump( struct object *obj, int verbose );
58 static void snapshot_destroy( struct object *obj );
60 static const struct object_ops snapshot_ops =
62 sizeof(struct snapshot), /* size */
63 snapshot_dump, /* dump */
64 no_add_queue, /* add_queue */
65 NULL, /* remove_queue */
68 no_signal, /* signal */
69 no_get_fd, /* get_fd */
70 no_map_access, /* map_access */
71 no_lookup_name, /* lookup_name */
72 no_close_handle, /* close_handle */
73 snapshot_destroy /* destroy */
77 /* create a new snapshot */
78 static struct snapshot *create_snapshot( process_id_t pid, int flags )
80 struct process *process = NULL;
81 struct snapshot *snapshot;
83 /* need a process for modules and heaps */
84 if (flags & (SNAP_MODULE|SNAP_HEAPLIST))
86 if (!pid) process = (struct process *)grab_object( current->process );
87 else if (!(process = get_process_from_id( pid ))) return NULL;
90 if (!(snapshot = alloc_object( &snapshot_ops )))
92 if (process) release_object( process );
96 snapshot->process = process;
98 snapshot->process_pos = 0;
99 snapshot->process_count = 0;
100 if (flags & SNAP_PROCESS)
101 snapshot->processes = process_snap( &snapshot->process_count );
103 snapshot->thread_pos = 0;
104 snapshot->thread_count = 0;
105 if (flags & SNAP_THREAD)
106 snapshot->threads = thread_snap( &snapshot->thread_count );
108 snapshot->module_pos = 0;
109 snapshot->module_count = 0;
110 if (flags & SNAP_MODULE)
111 snapshot->modules = module_snap( process, &snapshot->module_count );
116 /* get the next process in the snapshot */
117 static int snapshot_next_process( struct snapshot *snapshot, struct next_process_reply *reply )
119 struct process_snapshot *ptr;
120 struct process_dll *exe_module;
122 if (!snapshot->process_count)
124 set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
127 if (snapshot->process_pos >= snapshot->process_count)
129 set_error( STATUS_NO_MORE_FILES );
132 ptr = &snapshot->processes[snapshot->process_pos++];
133 reply->count = ptr->count;
134 reply->pid = get_process_id( ptr->process );
135 reply->ppid = ptr->process->parent ? get_process_id( ptr->process->parent ) : 0;
136 reply->heap = NULL; /* FIXME */
137 reply->module = NULL; /* FIXME */
138 reply->threads = ptr->threads;
139 reply->priority = ptr->priority;
140 reply->handles = ptr->handles;
141 if ((exe_module = get_process_exe_module( ptr->process )) && exe_module->filename)
143 size_t len = min( exe_module->namelen, get_reply_max_size() );
144 set_reply_data( exe_module->filename, len );
149 /* get the next thread in the snapshot */
150 static int snapshot_next_thread( struct snapshot *snapshot, struct next_thread_reply *reply )
152 struct thread_snapshot *ptr;
154 if (!snapshot->thread_count)
156 set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
159 if (snapshot->thread_pos >= snapshot->thread_count)
161 set_error( STATUS_NO_MORE_FILES );
164 ptr = &snapshot->threads[snapshot->thread_pos++];
165 reply->count = ptr->count;
166 reply->pid = get_process_id( ptr->thread->process );
167 reply->tid = get_thread_id( ptr->thread );
168 reply->base_pri = ptr->priority;
169 reply->delta_pri = 0; /* FIXME */
173 /* get the next module in the snapshot */
174 static int snapshot_next_module( struct snapshot *snapshot, struct next_module_reply *reply )
176 struct module_snapshot *ptr;
178 if (!snapshot->module_count)
180 set_error( STATUS_INVALID_PARAMETER ); /* FIXME */
183 if (snapshot->module_pos >= snapshot->module_count)
185 set_error( STATUS_NO_MORE_FILES );
188 ptr = &snapshot->modules[snapshot->module_pos++];
189 reply->pid = get_process_id( snapshot->process );
190 reply->base = ptr->base;
191 reply->size = ptr->size;
194 size_t len = min( ptr->namelen, get_reply_max_size() );
195 set_reply_data( ptr->filename, len );
200 static void snapshot_dump( struct object *obj, int verbose )
202 struct snapshot *snapshot = (struct snapshot *)obj;
203 assert( obj->ops == &snapshot_ops );
204 fprintf( stderr, "Snapshot: %d procs %d threads %d modules\n",
205 snapshot->process_count, snapshot->thread_count, snapshot->module_count );
208 static void snapshot_destroy( struct object *obj )
211 struct snapshot *snapshot = (struct snapshot *)obj;
212 assert( obj->ops == &snapshot_ops );
213 if (snapshot->process_count)
215 for (i = 0; i < snapshot->process_count; i++)
216 release_object( snapshot->processes[i].process );
217 free( snapshot->processes );
219 if (snapshot->thread_count)
221 for (i = 0; i < snapshot->thread_count; i++)
222 release_object( snapshot->threads[i].thread );
223 free( snapshot->threads );
225 if (snapshot->module_count)
227 for (i = 0; i < snapshot->module_count; i++)
228 free( snapshot->modules[i].filename );
229 free( snapshot->modules );
231 if (snapshot->process) release_object( snapshot->process );
234 /* create a snapshot */
235 DECL_HANDLER(create_snapshot)
237 struct snapshot *snapshot;
240 if ((snapshot = create_snapshot( req->pid, req->flags )))
242 reply->handle = alloc_handle( current->process, snapshot, 0, req->attributes );
243 release_object( snapshot );
247 /* get the next process from a snapshot */
248 DECL_HANDLER(next_process)
250 struct snapshot *snapshot;
252 if ((snapshot = (struct snapshot *)get_handle_obj( current->process, req->handle,
255 if (req->reset) snapshot->process_pos = 0;
256 snapshot_next_process( snapshot, reply );
257 release_object( snapshot );
261 /* get the next thread from a snapshot */
262 DECL_HANDLER(next_thread)
264 struct snapshot *snapshot;
266 if ((snapshot = (struct snapshot *)get_handle_obj( current->process, req->handle,
269 if (req->reset) snapshot->thread_pos = 0;
270 snapshot_next_thread( snapshot, reply );
271 release_object( snapshot );
275 /* get the next module from a snapshot */
276 DECL_HANDLER(next_module)
278 struct snapshot *snapshot;
280 if ((snapshot = (struct snapshot *)get_handle_obj( current->process, req->handle,
283 if (req->reset) snapshot->module_pos = 0;
284 snapshot_next_module( snapshot, reply );
285 release_object( snapshot );