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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/*
Miranda NG: the free IM client for Microsoft* Windows*
Copyright (c) 2012-18 Miranda NG team (https://miranda-ng.org)
all portions of this codebase are copyrighted to the people
listed in contributors.txt.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "stdafx.h"
CDbxMDBX::CDbxMDBX(const TCHAR *tszFileName, int iMode) :
m_safetyMode(true),
m_bReadOnly((iMode & DBMODE_READONLY) != 0),
m_bShared((iMode & DBMODE_SHARED) != 0),
m_maxContactId(0)
{
m_tszProfileName = mir_wstrdup(tszFileName);
mdbx_env_create(&m_env);
mdbx_env_set_maxdbs(m_env, 10);
mdbx_env_set_maxreaders(m_env, 244);
mdbx_env_set_userctx(m_env, this);
}
CDbxMDBX::~CDbxMDBX()
{
g_Dbs.remove(this);
mdbx_env_close(m_env);
DestroyServiceFunction(hService);
UnhookEvent(hHook);
if (m_crypto)
m_crypto->destroy();
DestroyHookableEvent(hContactDeletedEvent);
DestroyHookableEvent(hContactAddedEvent);
DestroyHookableEvent(hSettingChangeEvent);
DestroyHookableEvent(hEventMarkedRead);
DestroyHookableEvent(hEventAddedEvent);
DestroyHookableEvent(hEventDeletedEvent);
DestroyHookableEvent(hEventFilterAddedEvent);
mir_free(m_tszProfileName);
}
int CDbxMDBX::Load(bool bSkipInit)
{
if (Map() != MDBX_SUCCESS)
return EGROKPRF_CANTREAD;
if (!bSkipInit) {
txn_ptr trnlck(StartTran());
unsigned int defFlags = MDBX_CREATE;
mdbx_dbi_open(trnlck, "global", defFlags | MDBX_INTEGERKEY, &m_dbGlobal);
mdbx_dbi_open(trnlck, "crypto", defFlags, &m_dbCrypto);
mdbx_dbi_open(trnlck, "contacts", defFlags | MDBX_INTEGERKEY, &m_dbContacts);
mdbx_dbi_open(trnlck, "modules", defFlags | MDBX_INTEGERKEY, &m_dbModules);
mdbx_dbi_open(trnlck, "events", defFlags | MDBX_INTEGERKEY, &m_dbEvents);
mdbx_dbi_open_ex(trnlck, "eventsrt", defFlags, &m_dbEventsSort, DBEventSortingKey::Compare, nullptr);
mdbx_dbi_open_ex(trnlck, "settings", defFlags, &m_dbSettings, DBSettingKey::Compare, nullptr);
{
uint32_t keyVal = 1;
MDBX_val key = { &keyVal, sizeof(keyVal) }, data;
if (mdbx_get(trnlck, m_dbGlobal, &key, &data) == MDBX_SUCCESS) {
const DBHeader *hdr = (const DBHeader*)data.iov_base;
if (hdr->dwSignature != DBHEADER_SIGNATURE)
return EGROKPRF_DAMAGED;
if (hdr->dwVersion != DBHEADER_VERSION)
return EGROKPRF_OBSOLETE;
m_header = *hdr;
}
else {
m_header.dwSignature = DBHEADER_SIGNATURE;
m_header.dwVersion = DBHEADER_VERSION;
data.iov_base = &m_header; data.iov_len = sizeof(m_header);
mdbx_put(trnlck, m_dbGlobal, &key, &data, 0);
DBFlush();
}
keyVal = 2;
if (mdbx_get(trnlck, m_dbGlobal, &key, &data) == MDBX_SUCCESS)
m_ccDummy.dbc = *(const DBContact*)data.iov_base;
trnlck.commit();
}
{
MDBX_val key, val;
mdbx_txn_begin(m_env, nullptr, MDBX_RDONLY, &m_txn_ro);
mdbx_cursor_open(m_txn_ro, m_dbEvents, &m_curEvents);
if (mdbx_cursor_get(m_curEvents, &key, &val, MDBX_LAST) == MDBX_SUCCESS)
m_dwMaxEventId = *(MEVENT*)key.iov_base;
mdbx_cursor_open(m_txn_ro, m_dbEventsSort, &m_curEventsSort);
mdbx_cursor_open(m_txn_ro, m_dbSettings, &m_curSettings);
mdbx_cursor_open(m_txn_ro, m_dbModules, &m_curModules);
mdbx_cursor_open(m_txn_ro, m_dbContacts, &m_curContacts);
if (mdbx_cursor_get(m_curContacts, &key, &val, MDBX_LAST) == MDBX_SUCCESS)
m_maxContactId = *(MCONTACT*)key.iov_base;
MDBX_stat st;
mdbx_dbi_stat(m_txn_ro, m_dbContacts, &st, sizeof(st));
m_contactCount = st.ms_entries;
mdbx_txn_reset(m_txn_ro);
}
if (InitModules()) return EGROKPRF_DAMAGED;
if (InitCrypt()) return EGROKPRF_DAMAGED;
// everything is ok, go on
if (!m_bReadOnly) {
// retrieve the event handles
hContactDeletedEvent = CreateHookableEvent(ME_DB_CONTACT_DELETED);
hContactAddedEvent = CreateHookableEvent(ME_DB_CONTACT_ADDED);
hSettingChangeEvent = CreateHookableEvent(ME_DB_CONTACT_SETTINGCHANGED);
hEventMarkedRead = CreateHookableEvent(ME_DB_EVENT_MARKED_READ);
hEventAddedEvent = CreateHookableEvent(ME_DB_EVENT_ADDED);
hEventDeletedEvent = CreateHookableEvent(ME_DB_EVENT_DELETED);
hEventFilterAddedEvent = CreateHookableEvent(ME_DB_EVENT_FILTER_ADD);
}
FillContacts();
}
return EGROKPRF_NOERROR;
}
int CDbxMDBX::Create(void)
{
return (Map() == MDBX_SUCCESS) ? 0 : EGROKPRF_CANTREAD;
}
size_t iDefHeaderOffset = 0;
BYTE bDefHeader[] = { 0 };
int CDbxMDBX::Check(void)
{
FILE *pFile = _wfopen(m_tszProfileName, L"rb");
if (pFile == nullptr)
return EGROKPRF_CANTREAD;
fseek(pFile, (LONG)iDefHeaderOffset, SEEK_SET);
BYTE buf[_countof(bDefHeader)];
size_t cbRead = fread(buf, 1, _countof(buf), pFile);
fclose(pFile);
if (cbRead != _countof(buf))
return EGROKPRF_DAMAGED;
return (memcmp(buf, bDefHeader, _countof(bDefHeader))) ? EGROKPRF_UNKHEADER : 0;
}
int CDbxMDBX::PrepareCheck()
{
InitModules();
return InitCrypt();
}
STDMETHODIMP_(void) CDbxMDBX::SetCacheSafetyMode(BOOL bIsSet)
{
m_safetyMode = bIsSet != 0;
DBFlush(true);
}
int CDbxMDBX::Map()
{
int rc = mdbx_env_set_geometry(m_env,
-1 /* minimal lower limit */,
64ul << 10 /* atleast 64K for now */,
256ul << 20 /* 256M upper limit */,
256ul << 10 /* 256K growth step */,
512ul << 10 /* 512K shrink threshold */,
-1 /* default page size */);
if (rc != MDBX_SUCCESS)
return rc;
unsigned int mode = MDBX_NOSUBDIR | MDBX_MAPASYNC | MDBX_WRITEMAP | MDBX_NOSYNC;
if (m_bReadOnly)
mode |= MDBX_RDONLY;
int exclusive = (m_bShared) ? 1 : 2;
return mdbx_env_open_ex(m_env, _T2A(m_tszProfileName), mode, 0664, &exclusive);
}
/////////////////////////////////////////////////////////////////////////////////////////
static VOID CALLBACK DoBufferFlushTimerProc(HWND, UINT, UINT_PTR idEvent, DWORD)
{
KillTimer(nullptr, idEvent);
for (auto &it : g_Dbs)
if (it->m_timerId == idEvent)
it->DBFlush(true);
}
void CDbxMDBX::DBFlush(bool bForce)
{
if (bForce) {
mdbx_env_sync(m_env, true);
}
else if (m_safetyMode) {
::KillTimer(nullptr, m_timerId);
::SetTimer(nullptr, m_timerId, 50, DoBufferFlushTimerProc);
}
}
|
