s4:lib/com: make use of samba_tevent_context_init()
[Samba/gebeck_regimport.git] / source4 / lib / com / main.c
blobe67051bb817e7db392176d297fca6f81f81c0a58
1 /*
2 Unix SMB/CIFS implementation.
3 Main COM functionality
4 Copyright (C) 2004 Jelmer Vernooij <jelmer@samba.org>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program 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
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "includes.h"
22 #include "../lib/util/dlinklist.h"
23 #include "lib/com/com.h"
24 #include "lib/events/events.h"
25 #include "librpc/gen_ndr/com_dcom.h"
27 WERROR com_init_ctx(struct com_context **ctx, struct tevent_context *event_ctx)
29 *ctx = talloc(NULL, struct com_context);
30 if (event_ctx == NULL) {
31 event_ctx = samba_tevent_context_init(*ctx);
33 (*ctx)->event_ctx = event_ctx;
34 return WERR_OK;
37 WERROR com_create_object(struct com_context *ctx, struct GUID *clsid, int num_ifaces, struct GUID *iid, struct IUnknown **ip, WERROR *results)
39 struct IUnknown *iunk = NULL;
40 struct IClassFactory *factory;
41 WERROR error;
42 int i;
43 struct GUID classfact_iid;
45 GUID_from_string(NDR_ICLASSFACTORY_UUID, &classfact_iid);
47 /* Obtain class object */
48 error = com_get_class_object(ctx, clsid, &classfact_iid, (struct IUnknown **)&factory);
49 if (!W_ERROR_IS_OK(error)) {
50 DEBUG(3, ("Unable to obtain class object for %s\n", GUID_string(NULL, clsid)));
51 return error;
54 /* Run IClassFactory::CreateInstance() */
55 error = IClassFactory_CreateInstance(factory, ctx, NULL, &classfact_iid, (struct MInterfacePointer *) &iunk);
56 if (!W_ERROR_IS_OK(error)) {
57 DEBUG(3, ("Error while calling IClassFactory::CreateInstance : %s\n", win_errstr(error)));
58 return error;
61 if (!iunk) {
62 DEBUG(0, ("IClassFactory_CreateInstance returned success but result pointer is still NULL!\n"));
63 return WERR_GENERAL_FAILURE;
66 /* Release class object */
67 IUnknown_Release(factory, ctx);
69 error = WERR_OK;
71 /* Do one or more QueryInterface calls */
72 for (i = 0; i < num_ifaces; i++) {
73 results[i] = IUnknown_QueryInterface(iunk, ctx, &iid[i], &ip[i]);
74 if (!W_ERROR_IS_OK(results[i])) error = results[i];
77 return error;
80 WERROR com_get_class_object(struct com_context *ctx, struct GUID *clsid, struct GUID *iid, struct IUnknown **ip)
82 struct IUnknown *iu;
84 iu = com_class_by_clsid(ctx, clsid);
85 if (!iu) {
86 return WERR_CLASS_NOT_REGISTERED;
89 return IUnknown_QueryInterface(iu, ctx, iid, ip);