* then the second stage deletes all listed objects from the database.
*
* At first glance this may seem cumbersome and unnecessary. The reason it is
- * implemented in this way is because GDBM (and perhaps some other backends we
- * may hook into in the future) explicitly do _not_ support the deletion of
+ * implemented in this way is because Berkeley DB, and possibly other backends
+ * we may hook into in the future, explicitly do _not_ support the deletion of
* records from a file while the file is being traversed. The delete operation
* will succeed, but the traversal is not guaranteed to visit every object if
* this is done. Therefore we utilize the two-stage purge.
#include <limits.h>
#include "citadel.h"
#include "server.h"
-#include <syslog.h>
#include "sysdep_decls.h"
#include "citserver.h"
#include "support.h"
#include "config.h"
-#include "dynloader.h"
+#include "serv_extensions.h"
#include "room_ops.h"
#include "policy.h"
#include "database.h"
#include "msgbase.h"
#include "user_ops.h"
#include "control.h"
+#include "serv_network.h"
#include "tools.h"
};
-struct roomref {
- struct roomref *next;
+struct ctdlroomref {
+ struct ctdlroomref *next;
long msgnum;
};
+struct UPurgeList {
+ struct UPurgeList *next;
+ char up_key[SIZ];
+};
+
struct PurgeList *UserPurgeList = NULL;
struct PurgeList *RoomPurgeList = NULL;
struct ValidUser *ValidUserList = NULL;
int messages_purged;
-struct roomref *rr = NULL;
+struct ctdlroomref *rr = NULL;
extern struct CitContext *ContextList;
* First phase of message purge -- gather the locations of messages which
* qualify for purging and write them to a temp file.
*/
-void GatherPurgeMessages(struct quickroom *qrbuf, void *data) {
+void GatherPurgeMessages(struct ctdlroom *qrbuf, void *data) {
struct ExpirePolicy epbuf;
long delnum;
time_t xtime, now;
}
-void AddValidUser(struct usersupp *usbuf, void *data) {
+void AddValidUser(struct ctdluser *usbuf, void *data) {
struct ValidUser *vuptr;
vuptr = (struct ValidUser *)mallok(sizeof(struct ValidUser));
ValidUserList = vuptr;
}
-void AddValidRoom(struct quickroom *qrbuf, void *data) {
+void AddValidRoom(struct ctdlroom *qrbuf, void *data) {
struct ValidRoom *vrptr;
vrptr = (struct ValidRoom *)mallok(sizeof(struct ValidRoom));
ValidRoomList = vrptr;
}
-void DoPurgeRooms(struct quickroom *qrbuf, void *data) {
+void DoPurgeRooms(struct ctdlroom *qrbuf, void *data) {
time_t age, purge_secs;
struct PurgeList *pptr;
struct ValidUser *vuptr;
age = time(NULL) - (qrbuf->QRmtime);
purge_secs = (time_t)config.c_roompurge * (time_t)86400;
if (purge_secs <= (time_t)0) return;
- lprintf(9, "<%s> is <%ld> seconds old\n", qrbuf->QRname, age);
+ lprintf(9, "<%s> is <%ld> seconds old\n", qrbuf->QRname, (long)age);
if (age > purge_secs) do_purge = 1;
} /* !QR_MAILBOX */
int PurgeRooms(void) {
struct PurgeList *pptr;
int num_rooms_purged = 0;
- struct quickroom qrbuf;
+ struct ctdlroom qrbuf;
struct ValidUser *vuptr;
char *transcript = NULL;
while (RoomPurgeList != NULL) {
if (getroom(&qrbuf, RoomPurgeList->name) == 0) {
transcript=reallok(transcript, strlen(transcript)+SIZ);
- sprintf(&transcript[strlen(transcript)], " %s\n",
+ snprintf(&transcript[strlen(transcript)], SIZ, " %s\n",
qrbuf.QRname);
delete_room(&qrbuf);
}
}
-void do_user_purge(struct usersupp *us, void *data) {
+void do_user_purge(struct ctdluser *us, void *data) {
int purge;
time_t now;
time_t purge_time;
/* stupid recovery routine to re-create missing mailboxen.
* don't enable this.
- struct quickroom qrbuf;
+ struct ctdlroom qrbuf;
char mailboxname[ROOMNAMELEN];
MailboxName(mailboxname, us, MAILROOM);
- create_room(mailboxname, 4, "", 0, 1);
+ create_room(mailboxname, 4, "", 0, 1, 1);
if (getroom(&qrbuf, mailboxname) != 0) return;
lprintf(9, "Got %s\n", qrbuf.QRname);
*/
while (UserPurgeList != NULL) {
transcript=reallok(transcript, strlen(transcript)+SIZ);
- sprintf(&transcript[strlen(transcript)], " %s\n",
+ snprintf(&transcript[strlen(transcript)], SIZ, " %s\n",
UserPurgeList->name);
purge_user(UserPurgeList->name);
pptr = UserPurgeList->next;
ForEachUser(AddValidUser, NULL);
/* Now traverse through the visits, purging irrelevant records... */
- cdb_begin_transaction();
cdb_rewind(CDB_VISIT);
while(cdbvisit = cdb_next_item(CDB_VISIT), cdbvisit != NULL) {
memset(&vbuf, 0, sizeof(struct visit));
}
- cdb_end_transaction();
-
/* Free the valid room/gen combination list */
while (ValidRoomList != NULL) {
vrptr = ValidRoomList->next;
return(purged);
}
+/*
+ * Purge the use table of old entries.
+ *
+ */
+int PurgeUseTable(void) {
+ int purged = 0;
+ struct cdbdata *cdbut;
+ struct UseTable ut;
+ struct UPurgeList *ul = NULL;
+ struct UPurgeList *uptr;
+
+ /* Phase 1: traverse through the table, discovering old records... */
+ lprintf(9, "Purge use table: phase 1\n");
+ cdb_rewind(CDB_USETABLE);
+ while(cdbut = cdb_next_item(CDB_USETABLE), cdbut != NULL) {
+
+ memcpy(&ut, cdbut->ptr,
+ ((cdbut->len > sizeof(struct UseTable)) ?
+ sizeof(struct UseTable) : cdbut->len));
+ cdb_free(cdbut);
+
+ if ( (time(NULL) - ut.ut_timestamp) > USETABLE_RETAIN ) {
+ uptr = (struct UPurgeList *) mallok(sizeof(struct UPurgeList));
+ if (uptr != NULL) {
+ uptr->next = ul;
+ safestrncpy(uptr->up_key, ut.ut_msgid, SIZ);
+ ul = uptr;
+ }
+ ++purged;
+ }
+
+ }
+
+ /* Phase 2: delete the records */
+ lprintf(9, "Purge use table: phase 2\n");
+ while (ul != NULL) {
+ cdb_delete(CDB_USETABLE, ul->up_key, strlen(ul->up_key));
+ uptr = ul->next;
+ phree(ul);
+ ul = uptr;
+ }
+
+ lprintf(9, "Purge use table: finished (purged %d records)\n", purged);
+ return(purged);
+}
+
-void cmd_expi(char *argbuf) {
- char cmd[SIZ];
+void purge_databases(void) {
int retval;
+ static time_t last_purge = 0;
+ time_t now;
+ struct tm tm;
- if (CtdlAccessCheck(ac_aide)) return;
+ /* Do the auto-purge if the current hour equals the purge hour,
+ * but not if the operation has already been performed in the
+ * last twelve hours. This is usually enough granularity.
+ */
+ now = time(NULL);
+ memcpy(&tm, localtime(&now), sizeof(struct tm));
+ if (tm.tm_hour != config.c_purge_hour) return;
+ if ((now - last_purge) < 43200) return;
- extract(cmd, argbuf, 0);
- if (!strcasecmp(cmd, "users")) {
- retval = PurgeUsers();
- cprintf("%d Purged %d users.\n", OK, retval);
- return;
- }
- else if (!strcasecmp(cmd, "messages")) {
- PurgeMessages();
- cprintf("%d Expired %d messages.\n", OK, messages_purged);
- return;
- }
- else if (!strcasecmp(cmd, "rooms")) {
- retval = PurgeRooms();
- cprintf("%d Expired %d rooms.\n", OK, retval);
- return;
- }
- else if (!strcasecmp(cmd, "visits")) {
- retval = PurgeVisits();
- cprintf("%d Purged %d visits.\n", OK, retval);
- }
- else if (!strcasecmp(cmd, "defrag")) {
- defrag_databases();
- cprintf("%d Defragmented the databases.\n", OK);
- }
- else {
- cprintf("%d Invalid command.\n", ERROR+ILLEGAL_VALUE);
- return;
- }
+ lprintf(3, "Auto-purger: starting.\n");
+
+ retval = PurgeUsers();
+ lprintf(3, "Purged %d users.\n", retval);
+
+ PurgeMessages();
+ lprintf(3, "Expired %d messages.\n", messages_purged);
+
+ retval = PurgeRooms();
+ lprintf(3, "Expired %d rooms.\n", retval);
+
+ retval = PurgeVisits();
+ lprintf(3, "Purged %d visits.\n", retval);
+
+ retval = PurgeUseTable();
+ lprintf(3, "Purged %d entries from the use table.\n", retval);
+
+ lprintf(3, "Auto-purger: finished.\n");
+
+ last_purge = now; /* So we don't do it again soon */
}
/*****************************************************************************/
void do_fsck_msg(long msgnum, void *userdata) {
- struct roomref *ptr;
+ struct ctdlroomref *ptr;
- ptr = (struct roomref *)mallok(sizeof(struct roomref));
+ ptr = (struct ctdlroomref *)mallok(sizeof(struct ctdlroomref));
ptr->next = rr;
ptr->msgnum = msgnum;
rr = ptr;
}
-void do_fsck_room(struct quickroom *qrbuf, void *data)
+void do_fsck_room(struct ctdlroom *qrbuf, void *data)
{
- getroom(&CC->quickroom, qrbuf->QRname);
- CtdlForEachMessage(MSGS_ALL, 0L, (-127), NULL, NULL,
- do_fsck_msg, NULL);
+ getroom(&CC->room, qrbuf->QRname);
+ CtdlForEachMessage(MSGS_ALL, 0L, NULL, NULL, do_fsck_msg, NULL);
}
/*
void cmd_fsck(char *argbuf) {
long msgnum;
struct cdbdata *cdbmsg;
- struct SuppMsgInfo smi;
- struct roomref *ptr;
+ struct MetaData smi;
+ struct ctdlroomref *ptr;
int realcount;
if (CtdlAccessCheck(ac_aide)) return;
/* Lame way of checking whether anyone else is doing this now */
if (rr != NULL) {
- cprintf("%d Another FSCK is already running.\n", ERROR);
+ cprintf("%d Another FSCK is already running.\n", ERROR + RESOURCE_BUSY);
return;
}
cdb_free(cdbmsg);
cprintf("Message %7ld ", msgnum);
- GetSuppMsgInfo(&smi, msgnum);
- cprintf("refcount=%-2d ", smi.smi_refcount);
+ GetMetaData(&smi, msgnum);
+ cprintf("refcount=%-2d ", smi.meta_refcount);
realcount = 0;
for (ptr = rr; ptr != NULL; ptr = ptr->next) {
}
cprintf("realcount=%-2d\n", realcount);
- if ( (smi.smi_refcount != realcount)
+ if ( (smi.meta_refcount != realcount)
|| (realcount == 0) ) {
- smi.smi_refcount = realcount;
- PutSuppMsgInfo(&smi);
+ smi.meta_refcount = realcount;
+ PutMetaData(&smi);
AdjRefCount(msgnum, 0); /* deletes if needed */
}
/*****************************************************************************/
-char *Dynamic_Module_Init(void)
+char *serv_expire_init(void)
{
- CtdlRegisterProtoHook(cmd_expi, "EXPI", "Expire old system objects");
+ CtdlRegisterSessionHook(purge_databases, EVT_TIMER);
CtdlRegisterProtoHook(cmd_fsck, "FSCK", "Check message ref counts");
return "$Id$";
}
projects / citadel.git / blobdiff