/* * Server-side snapshots * * Copyright (C) 1999 Alexandre Julliard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * FIXME: heap snapshots not implemented */ #include "config.h" #include "wine/port.h" #include <assert.h> #include <stdio.h> #include <stdlib.h> #include "windef.h" #include "handle.h" #include "process.h" #include "thread.h" #include "request.h" struct snapshot { struct object obj; /* object header */ struct process *process; /* process of this snapshot (for modules and heaps) */ struct process_snapshot *processes; /* processes snapshot */ int process_count; /* count of processes */ int process_pos; /* current position in proc snapshot */ struct thread_snapshot *threads; /* threads snapshot */ int thread_count; /* count of threads */ int thread_pos; /* current position in thread snapshot */ struct module_snapshot *modules; /* modules snapshot */ int module_count; /* count of modules */ int module_pos; /* current position in module snapshot */ }; static void snapshot_dump( struct object *obj, int verbose ); static void snapshot_destroy( struct object *obj ); static const struct object_ops snapshot_ops = { sizeof(struct snapshot), /* size */ snapshot_dump, /* dump */ no_add_queue, /* add_queue */ NULL, /* remove_queue */ NULL, /* signaled */ NULL, /* satisfied */ no_get_fd, /* get_fd */ snapshot_destroy /* destroy */ }; /* create a new snapshot */ static struct snapshot *create_snapshot( process_id_t pid, int flags ) { struct process *process = NULL; struct snapshot *snapshot; /* need a process for modules and heaps */ if (flags & (SNAP_MODULE|SNAP_HEAPLIST)) { if (!pid) process = (struct process *)grab_object( current->process ); else if (!(process = get_process_from_id( pid ))) return NULL; } if (!(snapshot = alloc_object( &snapshot_ops ))) { if (process) release_object( process ); return NULL; } snapshot->process = process; snapshot->process_pos = 0; snapshot->process_count = 0; if (flags & SNAP_PROCESS) snapshot->processes = process_snap( &snapshot->process_count ); snapshot->thread_pos = 0; snapshot->thread_count = 0; if (flags & SNAP_THREAD) snapshot->threads = thread_snap( &snapshot->thread_count ); snapshot->module_pos = 0; snapshot->module_count = 0; if (flags & SNAP_MODULE) snapshot->modules = module_snap( process, &snapshot->module_count ); return snapshot; } /* get the next process in the snapshot */ static int snapshot_next_process( struct snapshot *snapshot, struct next_process_reply *reply ) { struct process_snapshot *ptr; if (!snapshot->process_count) { set_error( STATUS_INVALID_PARAMETER ); /* FIXME */ return 0; } if (snapshot->process_pos >= snapshot->process_count) { set_error( STATUS_NO_MORE_FILES ); return 0; } ptr = &snapshot->processes[snapshot->process_pos++]; reply->count = ptr->count; reply->pid = get_process_id( ptr->process ); reply->ppid = ptr->process->parent ? get_process_id( ptr->process->parent ) : 0; reply->heap = 0; /* FIXME */ reply->module = 0; /* FIXME */ reply->threads = ptr->threads; reply->priority = ptr->priority; reply->handles = ptr->handles; if (ptr->process->exe.filename) { size_t len = min( ptr->process->exe.namelen, get_reply_max_size() ); set_reply_data( ptr->process->exe.filename, len ); } return 1; } /* get the next thread in the snapshot */ static int snapshot_next_thread( struct snapshot *snapshot, struct next_thread_reply *reply ) { struct thread_snapshot *ptr; if (!snapshot->thread_count) { set_error( STATUS_INVALID_PARAMETER ); /* FIXME */ return 0; } if (snapshot->thread_pos >= snapshot->thread_count) { set_error( STATUS_NO_MORE_FILES ); return 0; } ptr = &snapshot->threads[snapshot->thread_pos++]; reply->count = ptr->count; reply->pid = get_process_id( ptr->thread->process ); reply->tid = get_thread_id( ptr->thread ); reply->base_pri = ptr->priority; reply->delta_pri = 0; /* FIXME */ return 1; } /* get the next module in the snapshot */ static int snapshot_next_module( struct snapshot *snapshot, struct next_module_reply *reply ) { struct module_snapshot *ptr; if (!snapshot->module_count) { set_error( STATUS_INVALID_PARAMETER ); /* FIXME */ return 0; } if (snapshot->module_pos >= snapshot->module_count) { set_error( STATUS_NO_MORE_FILES ); return 0; } ptr = &snapshot->modules[snapshot->module_pos++]; reply->pid = get_process_id( snapshot->process ); reply->base = ptr->base; reply->size = ptr->size; if (ptr->filename) { size_t len = min( ptr->namelen, get_reply_max_size() ); set_reply_data( ptr->filename, len ); } return 1; } static void snapshot_dump( struct object *obj, int verbose ) { struct snapshot *snapshot = (struct snapshot *)obj; assert( obj->ops == &snapshot_ops ); fprintf( stderr, "Snapshot: %d procs %d threads %d modules\n", snapshot->process_count, snapshot->thread_count, snapshot->module_count ); } static void snapshot_destroy( struct object *obj ) { int i; struct snapshot *snapshot = (struct snapshot *)obj; assert( obj->ops == &snapshot_ops ); if (snapshot->process_count) { for (i = 0; i < snapshot->process_count; i++) release_object( snapshot->processes[i].process ); free( snapshot->processes ); } if (snapshot->thread_count) { for (i = 0; i < snapshot->thread_count; i++) release_object( snapshot->threads[i].thread ); free( snapshot->threads ); } if (snapshot->module_count) { for (i = 0; i < snapshot->module_count; i++) free( snapshot->modules[i].filename ); free( snapshot->modules ); } if (snapshot->process) release_object( snapshot->process ); } /* create a snapshot */ DECL_HANDLER(create_snapshot) { struct snapshot *snapshot; reply->handle = 0; if ((snapshot = create_snapshot( req->pid, req->flags ))) { reply->handle = alloc_handle( current->process, snapshot, 0, req->inherit ); release_object( snapshot ); } } /* get the next process from a snapshot */ DECL_HANDLER(next_process) { struct snapshot *snapshot; if ((snapshot = (struct snapshot *)get_handle_obj( current->process, req->handle, 0, &snapshot_ops ))) { if (req->reset) snapshot->process_pos = 0; snapshot_next_process( snapshot, reply ); release_object( snapshot ); } } /* get the next thread from a snapshot */ DECL_HANDLER(next_thread) { struct snapshot *snapshot; if ((snapshot = (struct snapshot *)get_handle_obj( current->process, req->handle, 0, &snapshot_ops ))) { if (req->reset) snapshot->thread_pos = 0; snapshot_next_thread( snapshot, reply ); release_object( snapshot ); } } /* get the next module from a snapshot */ DECL_HANDLER(next_module) { struct snapshot *snapshot; if ((snapshot = (struct snapshot *)get_handle_obj( current->process, req->handle, 0, &snapshot_ops ))) { if (req->reset) snapshot->module_pos = 0; snapshot_next_module( snapshot, reply ); release_object( snapshot ); } }