1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/**
* Copyright (C) 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kQuery
#include "mongo/platform/basic.h"
#include "mongo/client/dbclient_base.h"
#include "mongo/scripting/mozjs/cursor_handle.h"
#include "mongo/scripting/mozjs/implscope.h"
#include "mongo/scripting/mozjs/wrapconstrainedmethod.h"
#include "mongo/util/log.h"
namespace mongo {
namespace mozjs {
const JSFunctionSpec CursorHandleInfo::methods[2] = {
MONGO_ATTACH_JS_CONSTRAINED_METHOD_NO_PROTO(zeroCursorId, CursorHandleInfo), JS_FS_END,
};
const char* const CursorHandleInfo::className = "CursorHandle";
namespace {
long long* getCursorId(JSObject* thisv) {
CursorHandleInfo::CursorTracker* tracker =
static_cast<CursorHandleInfo::CursorTracker*>(JS_GetPrivate(thisv));
if (tracker) {
return &tracker->cursorId;
}
return nullptr;
}
long long* getCursorId(JS::CallArgs& args) {
return getCursorId(args.thisv().toObjectOrNull());
}
} // namespace
void CursorHandleInfo::finalize(JSFreeOp* fop, JSObject* obj) {
auto cursorTracker = static_cast<CursorHandleInfo::CursorTracker*>(JS_GetPrivate(obj));
if (cursorTracker) {
const long long cursorId = cursorTracker->cursorId;
if (cursorId) {
try {
cursorTracker->client->killCursor(cursorTracker->ns, cursorId);
} catch (...) {
auto status = exceptionToStatus();
try {
LOG(0) << "Failed to kill cursor " << cursorId << " due to " << status;
} catch (...) {
// This is here in case logging fails.
}
}
}
getScope(fop)->trackedDelete(cursorTracker);
}
}
void CursorHandleInfo::Functions::zeroCursorId::call(JSContext* cx, JS::CallArgs args) {
long long* cursorId = getCursorId(args);
if (cursorId) {
*cursorId = 0;
}
}
} // namespace mozjs
} // namespace mongo
|
