ubik: remove unused UBIK_PAUSE code
[openafs.git] / src / ubik / recovery.c
index cfa6e4a..2b3cc76 100644 (file)
 #include <afsconfig.h>
 #include <afs/param.h>
 
+#include <roken.h>
 
 #include <sys/types.h>
 #include <string.h>
 #include <stdarg.h>
 #include <errno.h>
-#include <assert.h>
 
 #ifdef AFS_NT40_ENV
 #include <winsock2.h>
@@ -31,6 +31,7 @@
 #include <rx/xdr.h>
 #include <rx/rx.h>
 #include <afs/afsutil.h>
+#include <afs/cellconfig.h>
 
 #define UBIK_INTERNALS
 #include "ubik.h"
@@ -84,13 +85,15 @@ urecovery_ResetState(void)
  * \brief sync site
  *
  * routine called when a non-sync site server goes down; restarts recovery
- * process to send missing server the new db when it comes back up.
+ * process to send missing server the new db when it comes back up for
+ * non-sync site servers.
  *
  * \note This routine should not do anything with variables used by non-sync site servers.
  */
 int
-urecovery_LostServer(void)
+urecovery_LostServer(struct ubik_server *ts)
 {
+    ubeacon_ReinitServer(ts);
 #if !defined(AFS_PTHREAD_ENV)
     /*  No corresponding LWP_WaitProcess found anywhere for this -- klm */
     LWP_NoYieldSignal(&urecovery_state);
@@ -156,22 +159,18 @@ urecovery_AbortAll(struct ubik_dbase *adbase)
  * \brief this routine aborts the current remote transaction, if any, if the tid is wrong
  */
 int
-urecovery_CheckTid(struct ubik_tid *atid)
+urecovery_CheckTid(struct ubik_tid *atid, int abortalways)
 {
     if (ubik_currentTrans) {
        /* there is remote write trans, see if we match, see if this
         * is a new transaction */
        if (atid->epoch != ubik_currentTrans->tid.epoch
-           || atid->counter > ubik_currentTrans->tid.counter) {
+           || atid->counter > ubik_currentTrans->tid.counter || abortalways) {
            /* don't match, abort it */
            /* If the thread is not waiting for lock - ok to end it */
-#if !defined(UBIK_PAUSE)
            if (ubik_currentTrans->locktype != LOCKWAIT) {
-#endif /* UBIK_PAUSE */
                udisk_end(ubik_currentTrans);
-#if !defined(UBIK_PAUSE)
            }
-#endif /* UBIK_PAUSE */
            ubik_currentTrans = (struct ubik_trans *)0;
        }
     }
@@ -277,15 +276,21 @@ ReplayLog(struct ubik_dbase *adbase)
            } else if (opcode == LOGABORT)
                panic("log abort\n");
            else if (opcode == LOGEND) {
+               struct ubik_version version;
                tpos += 4;
                code =
                    (*adbase->read) (adbase, LOGFILE, (char *)buffer, tpos,
                                     2 * sizeof(afs_int32));
                if (code != 2 * sizeof(afs_int32))
                    return UBADLOG;
-               code = (*adbase->setlabel) (adbase, 0, (ubik_version *)buffer);
+               version.epoch = ntohl(buffer[0]);
+               version.counter = ntohl(buffer[1]);
+               code = (*adbase->setlabel) (adbase, 0, &version);
                if (code)
                    return code;
+               ubik_print("Successfully replayed log for interrupted "
+                          "transaction; db version is now %ld.%ld\n",
+                          (long) version.epoch, (long) version.counter);
                logIsGood = 1;
                break;          /* all done now */
            } else if (opcode == LOGTRUNCATE) {
@@ -385,7 +390,7 @@ InitializeDB(struct ubik_dbase *adbase)
            (*adbase->setlabel) (adbase, 0, &adbase->version);
        }
 #ifdef AFS_PTHREAD_ENV
-       assert(pthread_cond_broadcast(&adbase->version_cond) == 0);
+       CV_BROADCAST(&adbase->version_cond);
 #else
        LWP_NoYieldSignal(&adbase->version);
 #endif
@@ -448,7 +453,7 @@ urecovery_Interact(void *dummy)
     struct ubik_server *bestServer = NULL;
     struct ubik_server *ts;
     int dbok, doingRPC, now;
-    afs_int32 lastProbeTime, lastDBVCheck;
+    afs_int32 lastProbeTime;
     /* if we're the sync site, the best db version we've found yet */
     static struct ubik_version bestDBVersion;
     struct ubik_version tversion;
@@ -459,16 +464,13 @@ urecovery_Interact(void *dummy)
     struct ubik_stat ubikstat;
     struct in_addr inAddr;
     char hoststr[16];
-#ifndef OLD_URECOVERY
     char pbuffer[1028];
-    int flen, fd = -1;
+    int fd = -1;
     afs_int32 pass;
-#endif
 
     /* otherwise, begin interaction */
     urecovery_state = 0;
     lastProbeTime = 0;
-    lastDBVCheck = 0;
     while (1) {
        /* Run through this loop every 4 seconds */
        tv.tv_sec = 4;
@@ -557,21 +559,11 @@ urecovery_Interact(void *dummy)
                 */
                urecovery_state &= ~UBIK_RECHAVEDB;
            }
-           lastDBVCheck = FT_ApproxTime();
            urecovery_state |= UBIK_RECFOUNDDB;
            urecovery_state &= ~UBIK_RECSENTDB;
        }
-#if defined(UBIK_PAUSE)
-       /* it's not possible for UBIK_RECFOUNDDB not to be set here.
-        * However, we might have lost UBIK_RECSYNCSITE, and that
-        * IS important.
-        */
-       if (!(urecovery_state & UBIK_RECSYNCSITE))
-           continue;           /* lost sync */
-#else
        if (!(urecovery_state & UBIK_RECFOUNDDB))
            continue;           /* not ready */
-#endif /* UBIK_PAUSE */
 
        /* If we, the sync site, do not have the best db version, then
         * go and get it from the server that does.
@@ -604,15 +596,6 @@ urecovery_Interact(void *dummy)
                goto FetchEndCall;
            }
 
-#ifdef OLD_URECOVERY
-           /* Truncate the file first */
-           code = (*ubik_dbase->truncate) (ubik_dbase, file, 0);
-           if (code) {
-               ubik_dprint("truncate io error=%d\n", code);
-               goto FetchEndCall;
-           }
-           tversion.counter = 0;
-#endif
            /* give invalid label during file transit */
            tversion.epoch = 0;
            code = (*ubik_dbase->setlabel) (ubik_dbase, file, &tversion);
@@ -620,8 +603,6 @@ urecovery_Interact(void *dummy)
                ubik_dprint("setlabel io error=%d\n", code);
                goto FetchEndCall;
            }
-#ifndef OLD_URECOVERY
-           flen = length;
            afs_snprintf(pbuffer, sizeof(pbuffer), "%s.DB%s%d.TMP", ubik_dbase->pathName, (file<0)?"SYS":"", (file<0)?-file:file);
            fd = open(pbuffer, O_CREAT | O_RDWR | O_TRUNC, 0600);
            if (fd < 0) {
@@ -633,7 +614,6 @@ urecovery_Interact(void *dummy)
                close(fd);
                goto FetchEndCall;
            }
-#endif
 
            pass = 0;
            while (length > 0) {
@@ -649,14 +629,8 @@ urecovery_Interact(void *dummy)
                    close(fd);
                    goto FetchEndCall;
                }
-#ifdef OLD_URECOVERY
-               nbytes =
-                   (*ubik_dbase->write) (ubik_dbase, file, tbuffer, offset,
-                                         tlen);
-#else
                nbytes = write(fd, tbuffer, tlen);
                pass++;
-#endif
                if (nbytes != tlen) {
                    code = UIOERROR;
                    close(fd);
@@ -665,11 +639,9 @@ urecovery_Interact(void *dummy)
                offset += tlen;
                length -= tlen;
            }
-#ifndef OLD_URECOVERY
            code = close(fd);
            if (code)
                goto FetchEndCall;
-#endif
            code = EndDISK_GetFile(rxcall, &tversion);
          FetchEndCall:
            tcode = rx_EndCall(rxcall, code);
@@ -680,9 +652,6 @@ urecovery_Interact(void *dummy)
                urecovery_state |= UBIK_RECHAVEDB;
                memcpy(&ubik_dbase->version, &tversion,
                       sizeof(struct ubik_version));
-#ifdef OLD_URECOVERY
-               (*ubik_dbase->sync) (ubik_dbase, 0);    /* get data out first */
-#else
                afs_snprintf(tbuffer, sizeof(tbuffer), "%s.DB%s%d", ubik_dbase->pathName, (file<0)?"SYS":"", (file<0)?-file:file);
 #ifdef AFS_NT40_ENV
                afs_snprintf(pbuffer, sizeof(pbuffer), "%s.DB%s%d.OLD", ubik_dbase->pathName, (file<0)?"SYS":"", (file<0)?-file:file);
@@ -694,28 +663,23 @@ urecovery_Interact(void *dummy)
                if (!code)
                    code = rename(pbuffer, tbuffer);
                if (!code) {
-                   (*ubik_dbase->open) (ubik_dbase, 0);
-#endif
+                   (*ubik_dbase->open) (ubik_dbase, file);
                    /* after data is good, sync disk with correct label */
                    code =
                        (*ubik_dbase->setlabel) (ubik_dbase, 0,
                                                 &ubik_dbase->version);
-#ifndef OLD_URECOVERY
                }
 #ifdef AFS_NT40_ENV
                afs_snprintf(pbuffer, sizeof(pbuffer), "%s.DB%s%d.OLD", ubik_dbase->pathName, (file<0)?"SYS":"", (file<0)?-file:file);
                unlink(pbuffer);
 #endif
-#endif
            }
            if (code) {
-#ifndef OLD_URECOVERY
                unlink(pbuffer);
                /*
                 * We will effectively invalidate the old data forever now.
                 * Unclear if we *should* but we do.
                 */
-#endif
                ubik_dbase->version.epoch = 0;
                ubik_dbase->version.counter = 0;
                ubik_print("Ubik: Synchronize database failed (error = %d)\n",
@@ -726,16 +690,12 @@ urecovery_Interact(void *dummy)
            }
            udisk_Invalidate(ubik_dbase, 0);    /* data has changed */
 #ifdef AFS_PTHREAD_ENV
-           assert(pthread_cond_broadcast(&ubik_dbase->version_cond) == 0);
+           CV_BROADCAST(&ubik_dbase->version_cond);
 #else
            LWP_NoYieldSignal(&ubik_dbase->version);
 #endif
            DBRELE(ubik_dbase);
        }
-#if defined(UBIK_PAUSE)
-       if (!(urecovery_state & UBIK_RECSYNCSITE))
-           continue;           /* lost sync */
-#endif /* UBIK_PAUSE */
        if (!(urecovery_state & UBIK_RECHAVEDB))
            continue;           /* not ready */
 
@@ -754,7 +714,7 @@ urecovery_Interact(void *dummy)
                (*ubik_dbase->setlabel) (ubik_dbase, 0, &ubik_dbase->version);
            udisk_Invalidate(ubik_dbase, 0);    /* data may have changed */
 #ifdef AFS_PTHREAD_ENV
-           assert(pthread_cond_broadcast(&ubik_dbase->version_cond) == 0);
+           CV_BROADCAST(&ubik_dbase->version_cond);
 #else
            LWP_NoYieldSignal(&ubik_dbase->version);
 #endif
@@ -897,7 +857,7 @@ DoProbe(struct ubik_server *server)
            break;
        }
     }
-    assert(i);                 /* at least one interface address for this server */
+    osi_Assert(i);                     /* at least one interface address for this server */
 
 #ifdef AFS_PTHREAD_ENV
     DBRELE(ubik_dbase);