C++ Mmsg函数代码示例

/*
 * List Volumes -- this should be moved to status.c
 */
void list_volumes(void sendit(const char *msg, int len, void *sarg), void *arg)
{
   VOLRES *vol;
   POOL_MEM msg(PM_MESSAGE);
   int len;

   lock_volumes();
   foreach_dlist(vol, vol_list) {
      DEVICE *dev = vol->dev;
      if (dev) {
         len = Mmsg(msg, "%s on device %s\n", vol->vol_name, dev->print_name());
         sendit(msg.c_str(), len, arg);
         len = Mmsg(msg, "    Reader=%d writers=%d devres=%d volinuse=%d\n",
            dev->can_read()?1:0, dev->num_writers, dev->num_reserved(),
            vol->is_in_use());
         sendit(msg.c_str(), len, arg);
      } else {
         len = Mmsg(msg, "%s no device. volinuse= %d\n", vol->vol_name,
            vol->is_in_use());
         sendit(msg.c_str(), len, arg);
      }
   }

static void mark_row(int row, bool mark)
{
   char *file;
   int len;
   char new_mark[10];

   gtk_clist_get_text(restore->list, row, FILE_COLUMN, &file);
   if (mark) {
      bstrncpy(new_mark, "x", sizeof(new_mark));
      len = Mmsg(&restore->buf, "mark %s", file);
   } else {
      bstrncpy(new_mark, " ", sizeof(new_mark));
      len = Mmsg(&restore->buf, "unmark %s", file);
   }
   gtk_clist_set_text(restore->list, row, CHECK_COLUMN, new_mark);
    /* strip trailing slash from directory name */
   while (len > 1 && restore->buf[len-1] == '/') {
      restore->buf[len-1] = 0;
   }
   write_director(restore->buf);
   discard_to_prompt();
}

void db_list_base_files_for_job(JCR *jcr, B_DB *mdb, JobId_t jobid, OUTPUT_FORMATTER *sendit)
{
   char ed1[50];
   LIST_CTX lctx(jcr, mdb, sendit, NF_LIST);

   db_lock(mdb);

   /*
    * Stupid MySQL is NON-STANDARD !
    */
   if (db_get_type_index(mdb) == SQL_TYPE_MYSQL) {
      Mmsg(mdb->cmd, "SELECT CONCAT(Path.Path,Filename.Name) AS Filename "
           "FROM BaseFiles, File, Filename, Path "
           "WHERE BaseFiles.JobId=%s AND BaseFiles.BaseJobId = File.JobId "
           "AND BaseFiles.FileId = File.FileId "
           "AND Filename.FilenameId=File.FilenameId "
           "AND Path.PathId=File.PathId",
         edit_int64(jobid, ed1));
   } else {
      Mmsg(mdb->cmd, "SELECT Path.Path||Filename.Name AS Filename "
           "FROM BaseFiles, File, Filename, Path "
           "WHERE BaseFiles.JobId=%s AND BaseFiles.BaseJobId = File.JobId "
           "AND BaseFiles.FileId = File.FileId "
           "AND Filename.FilenameId=File.FilenameId "
           "AND Path.PathId=File.PathId",
           edit_int64(jobid, ed1));
   }

   sendit->array_start("files");
   if (!db_big_sql_query(mdb, mdb->cmd, list_result, &lctx)) {
       goto bail_out;
   }
   sendit->array_end("files");

   sql_free_result(mdb);

bail_out:
   db_unlock(mdb);
}

/*
 * Update the Job record at end of Job
 *
 *  Returns: 0 on failure
 *           1 on success
 */
int
db_update_job_end_record(JCR *jcr, B_DB *mdb, JOB_DBR *jr)
{
   char dt[MAX_TIME_LENGTH];
   char rdt[MAX_TIME_LENGTH];
   time_t ttime;
   struct tm tm;
   int stat;
   char ed1[30], ed2[30], ed3[50], ed4[50];
   btime_t JobTDate;
   char PriorJobId[50];

   if (jr->PriorJobId) {
      bstrncpy(PriorJobId, edit_int64(jr->PriorJobId, ed1), sizeof(PriorJobId));
   } else {
      bstrncpy(PriorJobId, "0", sizeof(PriorJobId));
   }

   ttime = jr->EndTime;
   (void)localtime_r(&ttime, &tm);
   strftime(dt, sizeof(dt), "%Y-%m-%d %H:%M:%S", &tm);

   if (jr->RealEndTime == 0) {
      jr->RealEndTime = jr->EndTime;
   }
   ttime = jr->RealEndTime;
   (void)localtime_r(&ttime, &tm);
   strftime(rdt, sizeof(rdt), "%Y-%m-%d %H:%M:%S", &tm);

   JobTDate = ttime;

   db_lock(mdb);
   Mmsg(mdb->cmd,
      "UPDATE Job SET JobStatus='%c',EndTime='%s',"
"ClientId=%u,JobBytes=%s,ReadBytes=%s,JobFiles=%u,JobErrors=%u,VolSessionId=%u,"
"VolSessionTime=%u,PoolId=%u,FileSetId=%u,JobTDate=%s,"
"RealEndTime='%s',PriorJobId=%s,HasBase=%u,PurgedFiles=%u WHERE JobId=%s",
      (char)(jr->JobStatus), dt, jr->ClientId, edit_uint64(jr->JobBytes, ed1),
      edit_uint64(jr->ReadBytes, ed4),
      jr->JobFiles, jr->JobErrors, jr->VolSessionId, jr->VolSessionTime,
      jr->PoolId, jr->FileSetId, edit_uint64(JobTDate, ed2), 
      rdt, PriorJobId, jr->HasBase, jr->PurgedFiles,
      edit_int64(jr->JobId, ed3));

   stat = UPDATE_DB(jcr, mdb, mdb->cmd);

   db_unlock(mdb);
   return stat;
}

/*
 * (Un)mount the device (for tape devices)
 */
static bool do_mount(DCR *dcr, int mount, int dotimeout)
{
   DEVRES *device = dcr->dev->device;
   POOL_MEM ocmd(PM_FNAME);
   POOLMEM *results;
   char *icmd;
   int status, tries;
   berrno be;

   Dsm_check(200);
   if (mount) {
      icmd = device->mount_command;
   } else {
      icmd = device->unmount_command;
   }

   dcr->dev->edit_mount_codes(ocmd, icmd);
   Dmsg2(100, "do_mount: cmd=%s mounted=%d\n", ocmd.c_str(), dcr->dev->is_mounted());

   if (dotimeout) {
      /* Try at most 10 times to (un)mount the device. This should perhaps be configurable. */
      tries = 10;
   } else {
      tries = 1;
   }
   results = get_memory(4000);

   /* If busy retry each second */
   Dmsg1(100, "do_mount run_prog=%s\n", ocmd.c_str());
   while ((status = run_program_full_output(ocmd.c_str(), dcr->dev->max_open_wait / 2, results)) != 0) {
      if (tries-- > 0) {
         continue;
      }

      Dmsg5(100, "Device %s cannot be %smounted. stat=%d result=%s ERR=%s\n", dcr->dev->print_name(),
           (mount ? "" : "un"), status, results, be.bstrerror(status));
      Mmsg(dcr->dev->errmsg, _("Device %s cannot be %smounted. ERR=%s\n"),
           dcr->dev->print_name(), (mount ? "" : "un"), be.bstrerror(status));

      free_pool_memory(results);
      Dmsg0(200, "============ mount=0\n");
      Dsm_check(200);
      return false;
   }

   free_pool_memory(results);
   Dmsg1(200, "============ mount=%d\n", mount);
   return true;
}

bool db_update_pool_record(JCR *jcr, B_DB *mdb, POOL_DBR *pr)
{
    bool retval;
    char ed1[50], ed2[50], ed3[50], ed4[50], ed5[50], ed6[50];
    char esc[MAX_ESCAPE_NAME_LENGTH];

    db_lock(mdb);
    mdb->db_escape_string(jcr, esc, pr->LabelFormat, strlen(pr->LabelFormat));

    Mmsg(mdb->cmd, "SELECT count(*) from Media WHERE PoolId=%s",
         edit_int64(pr->PoolId, ed4));
    pr->NumVols = get_sql_record_max(jcr, mdb);
    Dmsg1(400, "NumVols=%d\n", pr->NumVols);

    Mmsg(mdb->cmd,
         "UPDATE Pool SET NumVols=%u,MaxVols=%u,UseOnce=%d,UseCatalog=%d,"
         "AcceptAnyVolume=%d,VolRetention='%s',VolUseDuration='%s',"
         "MaxVolJobs=%u,MaxVolFiles=%u,MaxVolBytes=%s,Recycle=%d,"
         "AutoPrune=%d,LabelType=%d,LabelFormat='%s',RecyclePoolId=%s,"
         "ScratchPoolId=%s,ActionOnPurge=%d,MinBlockSize=%d,MaxBlockSize=%d WHERE PoolId=%s",
         pr->NumVols, pr->MaxVols, pr->UseOnce, pr->UseCatalog,
         pr->AcceptAnyVolume, edit_uint64(pr->VolRetention, ed1),
         edit_uint64(pr->VolUseDuration, ed2),
         pr->MaxVolJobs, pr->MaxVolFiles,
         edit_uint64(pr->MaxVolBytes, ed3),
         pr->Recycle, pr->AutoPrune, pr->LabelType,
         esc, edit_int64(pr->RecyclePoolId,ed5),
         edit_int64(pr->ScratchPoolId,ed6),
         pr->ActionOnPurge,
         pr->MinBlocksize,
         pr->MaxBlocksize,
         ed4);
    retval = UPDATE_DB(jcr, mdb, mdb->cmd);
    db_unlock(mdb);
    return retval;
}

void db_list_joblog_records(JCR *jcr, B_DB *mdb, uint32_t JobId,
                            OUTPUT_FORMATTER *sendit, e_list_type type)
{
   char ed1[50];

   if (JobId <= 0) {
      return;
   }
   db_lock(mdb);
   if (type == VERT_LIST) {
      Mmsg(mdb->cmd, "SELECT Time, LogText FROM Log "
                     "WHERE Log.JobId=%s ORDER BY Log.LogId", edit_int64(JobId, ed1));
   } else {
      Mmsg(mdb->cmd, "SELECT Time, LogText FROM Log "
                     "WHERE Log.JobId=%s ORDER BY Log.LogId", edit_int64(JobId, ed1));
      /*
       * When something else then a vertical list is requested set the list type
       * to RAW_LIST e.g. non formated raw data as that makes the only sense for
       * the logtext output. The logtext already has things like \n etc in it
       * so we should just dump the raw content out for the best visible output.
       */
      type = RAW_LIST;
   }
   if (!QUERY_DB(jcr, mdb, mdb->cmd)) {
      goto bail_out;
   }

   sendit->array_start("joblog");
   list_result(jcr, mdb, sendit, type);
   sendit->array_end("joblog");

   sql_free_result(mdb);

bail_out:
   db_unlock(mdb);
}

/* Dump the item table format to a text file (used by plugin) */
int ConfigFile::serialize(POOLMEM **buf)
{
   int len;
   POOLMEM *tmp;
   if (!items) {
      **buf = 0;
      return 0;
   }

   len = Mmsg(buf, "# Plugin configuration file\n# Version %d\n", version);

   tmp = get_pool_memory(PM_MESSAGE);

   for (int i = 0; items[i].name; i++) {
      if (items[i].comment) {
         Mmsg(tmp, "OptPrompt=%s\n", items[i].comment);
         pm_strcat(buf, tmp);
      }
      if (items[i].default_value) {
         Mmsg(tmp, "OptDefault=%s\n", items[i].default_value);
         pm_strcat(buf, tmp);
      }
      if (items[i].required) {
         Mmsg(tmp, "OptRequired=yes\n");
         pm_strcat(buf, tmp);
      }

      /* variable = @[email protected] */
      Mmsg(tmp, "%s=%s\n\n",
           items[i].name, ini_get_store_code(items[i].handler));
      len = pm_strcat(buf, tmp);
   }
   free_pool_memory(tmp);

   return len ;
}

/*
 * Update Counters record
 *   Returns: 0 on failure
 *            1 on success
 */
int db_update_counter_record(JCR *jcr, B_DB *mdb, COUNTER_DBR *cr)
{
   char esc[MAX_ESCAPE_NAME_LENGTH];
   db_lock(mdb);
   mdb->db_escape_string(jcr, esc, cr->Counter, strlen(cr->Counter));
   Mmsg(mdb->cmd,
"UPDATE Counters SET Counters.MinValue=%d,Counters.MaxValue=%d,CurrentValue=%d,"
"WrapCounter='%s' WHERE Counter='%s'",
      cr->MinValue, cr->MaxValue, cr->CurrentValue,
      cr->WrapCounter, esc);

   int stat = UPDATE_DB(jcr, mdb, mdb->cmd);
   db_unlock(mdb);
   return stat;
}

/*
 * Find the last job start time for the specified JobLevel
 *
 *  StartTime is returned in stime
 *
 * Returns: false on failure
 *          true  on success, jr is unchanged, but stime is set
 */
bool
db_find_last_job_start_time(JCR *jcr, B_DB *mdb, JOB_DBR *jr, POOLMEM **stime, int JobLevel)
{
   SQL_ROW row;
   char ed1[50], ed2[50];

   db_lock(mdb);

   pm_strcpy(stime, "0000-00-00 00:00:00");   /* default */

   Mmsg(mdb->cmd,
"SELECT StartTime FROM Job WHERE JobStatus IN ('T','W') AND Type='%c' AND "
"Level='%c' AND Name='%s' AND ClientId=%s AND FileSetId=%s "
"ORDER BY StartTime DESC LIMIT 1",
      jr->JobType, JobLevel, jr->Name, 
      edit_int64(jr->ClientId, ed1), edit_int64(jr->FileSetId, ed2));
   if (!QUERY_DB(jcr, mdb, mdb->cmd)) {
      Mmsg2(&mdb->errmsg, _("Query error for start time request: ERR=%s\nCMD=%s\n"),
         sql_strerror(mdb), mdb->cmd);
      goto bail_out;
   }
   if ((row = sql_fetch_row(mdb)) == NULL) {
      sql_free_result(mdb);
      Mmsg(mdb->errmsg, _("No prior Full backup Job record found.\n"));
      goto bail_out;
   }
   Dmsg1(100, "Got start time: %s\n", row[0]);
   pm_strcpy(stime, row[0]);
   sql_free_result(mdb);
   db_unlock(mdb);
   return true;

bail_out:
   db_unlock(mdb);
   return false;
}

/*
 * Dump the item table format to a text file (used by plugin)
 */
int ConfigFile::serialize(POOL_MEM *buf)
{
   int len;
   POOL_MEM tmp(PM_MESSAGE);

   if (!items) {
      char *p;

      p = buf->c_str();
      p[0] = '\0';
      return 0;
   }

   len = Mmsg(buf, "# Plugin configuration file\n# Version %d\n", version);
   for (int i = 0; items[i].name; i++) {
      if (items[i].comment) {
         Mmsg(tmp, "OptPrompt=%s\n", items[i].comment);
         pm_strcat(buf, tmp.c_str());
      }
      if (items[i].default_value) {
         Mmsg(tmp, "OptDefault=%s\n", items[i].default_value);
         pm_strcat(buf, tmp.c_str());
      }
      if (items[i].required) {
         Mmsg(tmp, "OptRequired=yes\n");
         pm_strcat(buf, tmp.c_str());
      }

      /* variable = @[email protected] */
      Mmsg(tmp, "%s=%s\n\n",
           items[i].name, ini_get_store_code(items[i].type));
      len = pm_strcat(buf, tmp.c_str());
   }

   return len ;
}

/*
 * Open and read the state file for the daemon
 */
void read_state_file(char *dir, const char *progname, int port)
{
   int sfd;
   ssize_t status;
   bool ok = false;
   POOLMEM *fname = get_pool_memory(PM_FNAME);
   struct s_state_hdr hdr;
   int hdr_size = sizeof(hdr);

   Mmsg(&fname, "%s/%s.%d.state", dir, progname, port);
   /* If file exists, see what we have */
// Dmsg1(10, "O_BINARY=%d\n", O_BINARY);
   if ((sfd = open(fname, O_RDONLY|O_BINARY)) < 0) {
      berrno be;
      Dmsg3(010, "Could not open state file. sfd=%d size=%d: ERR=%s\n",
                    sfd, sizeof(hdr), be.bstrerror());
      goto bail_out;
   }
   if ((status = read(sfd, &hdr, hdr_size)) != hdr_size) {
      berrno be;
      Dmsg4(010, "Could not read state file. sfd=%d status=%d size=%d: ERR=%s\n",
                    sfd, (int)status, hdr_size, be.bstrerror());
      goto bail_out;
   }
   if (hdr.version != state_hdr.version) {
      Dmsg2(010, "Bad hdr version. Wanted %d got %d\n",
         state_hdr.version, hdr.version);
      goto bail_out;
   }
   hdr.id[13] = 0;
   if (!bstrcmp(hdr.id, state_hdr.id)) {
      Dmsg0(000, "State file header id invalid.\n");
      goto bail_out;
   }
// Dmsg1(010, "Read header of %d bytes.\n", sizeof(hdr));
   if (!read_last_jobs_list(sfd, hdr.last_jobs_addr)) {
      goto bail_out;
   }
   ok = true;
bail_out:
   if (sfd >= 0) {
      close(sfd);
   }
   if (!ok) {
      unlink(fname);
    }
   free_pool_memory(fname);
}

/*
 * See in the tree with selected files what files were selected to be restored.
 */
static inline int set_files_to_restore(JCR *jcr, struct ndm_job_param *job, int32_t FileIndex,
                                       const char *restore_prefix, const char *ndmp_filesystem)
{
   int len;
   int cnt = 0;
   TREE_NODE *node, *parent;
   POOL_MEM restore_pathname, tmp;

   node = first_tree_node(jcr->restore_tree_root);
   while (node) {
      /*
       * See if this is the wanted FileIndex and the user asked to extract it.
       */
      if (node->FileIndex == FileIndex && node->extract) {
         pm_strcpy(restore_pathname, node->fname);

         /*
          * Walk up the parent until we hit the head of the list.
          */
         for (parent = node->parent; parent; parent = parent->parent) {
            pm_strcpy(tmp, restore_pathname.c_str());
            Mmsg(restore_pathname, "%s/%s", parent->fname, tmp.c_str());
         }

         /*
          * We only want to restore the non pseudo NDMP names e.g. not the full backup stream name.
          */
         if (!bstrncmp(restore_pathname.c_str(), "/@NDMP/", 7)) {
            /*
             * See if we need to strip the prefix from the filename.
             */
            len = strlen(ndmp_filesystem);
            if (bstrncmp(restore_pathname.c_str(), ndmp_filesystem, len)) {
               add_to_namelist(job,  restore_pathname.c_str() + len, restore_prefix,
                               (char *)"", (char *)"", NDMP_INVALID_U_QUAD);
            } else {
               add_to_namelist(job,  restore_pathname.c_str(), restore_prefix,
                               (char *)"", (char *)"", NDMP_INVALID_U_QUAD);
            }
            cnt++;
         }
      }

      node = next_tree_node(node);
   }

   return cnt;
}

/*
 * Update Counters record
 * Returns: false on failure
 *          true on success
 */
bool db_update_counter_record(JCR *jcr, B_DB *mdb, COUNTER_DBR *cr)
{
    bool retval;
    char esc[MAX_ESCAPE_NAME_LENGTH];

    db_lock(mdb);
    mdb->db_escape_string(jcr, esc, cr->Counter, strlen(cr->Counter));
    Mmsg(mdb->cmd,
         update_counter_values[mdb->db_get_type_index()],
         cr->MinValue, cr->MaxValue, cr->CurrentValue,
         cr->WrapCounter, esc);

    retval = UPDATE_DB(jcr, mdb, mdb->cmd);
    db_unlock(mdb);
    return retval;
}

/*
 * Update Long term statistics with all jobs that were run before
 * age seconds
 */
int db_update_stats(JCR *jcr, B_DB *mdb, utime_t age)
{
    char ed1[30];
    int rows;
    utime_t now = (utime_t)time(NULL);
    edit_uint64(now - age, ed1);

    db_lock(mdb);

    Mmsg(mdb->cmd, fill_jobhisto, ed1);
    QUERY_DB(jcr, mdb, mdb->cmd); /* TODO: get a message ? */
    rows = sql_affected_rows(mdb);

    db_unlock(mdb);
    return rows;
}