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Comment:Update the backoffice poller so that it invokes each backoffice at least once every hour - configurable using the --min command-line option.
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SHA3-256: e1d8cea28ae395235bc3267446c89fc5caefdd6fc431f3810159df57c4cbf892
User & Date: drh 2020-06-23 12:52:06
Context
2020-06-25
00:17
On webpages, render help text as HTML. (check-in: e58c76a1d0 user: drh tags: trunk)
2020-06-24
21:50
Automatically add HTML formatting to the on-line help when displaying in a web-page. (This is a work-in-progress. No everything displays correctly, yet.) (check-in: f1230cb3f3 user: drh tags: formatted-online-help)
2020-06-23
12:52
Update the backoffice poller so that it invokes each backoffice at least once every hour - configurable using the --min command-line option. (check-in: e1d8cea28a user: drh tags: trunk)
2020-06-22
13:43
Fix typo in OpenBSD documentation httpd link, remove block quote formatting, and make section titles consistent with existing server docs. (check-in: a9cc104eb3 user: jamsek tags: trunk)
Changes
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Changes to src/backoffice.c.

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** to run this command as a daemon that will periodically invoke backoffice
** on collection of repositories.
**
** OPTIONS:
**
**    --debug                 Show what this command is doing.
**





**    --nodelay               Do not queue up or wait for a backoffice job
**                            to complete. If no work is available or if
**                            backoffice has run recently, return immediately.
**                            The --nodelay option is implied if more than
**                            one repository is listed on the command-line.
**
**    --poll N                Repeat backoffice calls for repositories that
**                            change in appoximately N-second intervals.
**                            N less than 1 turns polling off (the default).

**
**    --trace                 Enable debugging output on stderr
*/
void backoffice_command(void){
  int nPoll;

  const char *zPoll;
  int bDebug = 0;
  unsigned int nCmd = 0;
  if( find_option("trace",0,0)!=0 ) g.fAnyTrace = 1;
  if( find_option("nodelay",0,0)!=0 ) backofficeNoDelay = 1;
  zPoll = find_option("poll",0,1);
  nPoll = zPoll ? atoi(zPoll) : 0;


  bDebug = find_option("debug",0,0)!=0;

  /* Silently consume the -R or --repository flag, leaving behind its
  ** argument. This is for legacy compatibility. Older versions of the
  ** backoffice command only ran on a single repository that was specified
  ** using the -R option. */
  (void)find_option("repository","R",0);
................................................................................
  if( g.argc>3 || nPoll>0 ){
    /* Either there are multiple repositories named on the command-line
    ** or we are polling.  In either case, each backoffice should be run
    ** using a separate sub-process */
    int i;
    time_t iNow = 0;
    time_t ix;


    while( 1 /* exit via "break;" */){
      time_t iNext = time(0);
      for(i=2; i<g.argc; i++){
        Blob cmd;
        if( !file_isfile(g.argv[i], ExtFILE) ) continue;



        if( iNow && iNow>file_mtime(g.argv[i],ExtFILE) ) continue;




        blob_init(&cmd, 0, 0);
        blob_append_escaped_arg(&cmd, g.nameOfExe);
        blob_append(&cmd, " backoffice --nodelay", -1);
        if( g.fAnyTrace ){
          blob_append(&cmd, " --trace", -1);
        }
        blob_append_escaped_arg(&cmd, g.argv[i]);
        nCmd++;
        if( bDebug ){
          fossil_print("COMMAND[%u]: %s\n", nCmd, blob_str(&cmd));
        }
        fossil_system(blob_str(&cmd));

        blob_reset(&cmd);
      }
      if( nPoll<1 ) break;
      iNow = iNext;
      ix = time(0);
      if( ix < iNow+nPoll ){
        sqlite3_int64 nMS = (iNow + nPoll - ix)*1000;
        if( bDebug )fossil_print("SLEEP: %lld\n", nMS);
        sqlite3_sleep((int)nMS);
      }
    }
  }else{


    if( g.argc==3 ){
      g.zRepositoryOption = g.argv[2];
      g.argc--;
    }
    db_find_and_open_repository(0,0);
    backoffice_thread();
  }







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** to run this command as a daemon that will periodically invoke backoffice
** on collection of repositories.
**
** OPTIONS:
**
**    --debug                 Show what this command is doing.
**
**    --min N                 When polling, invoke backoffice at least
**                            once every N seconds even if the repository
**                            never changes.  0 or negative means disable
**                            this feature.  Default: 3600 (once per hour).
**
**    --nodelay               Do not queue up or wait for a backoffice job
**                            to complete. If no work is available or if
**                            backoffice has run recently, return immediately.
**                            The --nodelay option is implied if more than
**                            one repository is listed on the command-line.
**
**    --poll N                Repeat backoffice calls for repositories that
**                            change in appoximately N-second intervals.
**                            N less than 1 turns polling off (the default).
**                            Recommended polling interval: 60 seconds.
**
**    --trace                 Enable debugging output on stderr
*/
void backoffice_command(void){
  int nPoll;
  int nMin;
  const char *zPoll;
  int bDebug = 0;
  unsigned int nCmd = 0;
  if( find_option("trace",0,0)!=0 ) g.fAnyTrace = 1;
  if( find_option("nodelay",0,0)!=0 ) backofficeNoDelay = 1;
  zPoll = find_option("poll",0,1);
  nPoll = zPoll ? atoi(zPoll) : 0;
  zPoll = find_option("min",0,1);
  nMin = zPoll ? atoi(zPoll) : 3600;
  bDebug = find_option("debug",0,0)!=0;

  /* Silently consume the -R or --repository flag, leaving behind its
  ** argument. This is for legacy compatibility. Older versions of the
  ** backoffice command only ran on a single repository that was specified
  ** using the -R option. */
  (void)find_option("repository","R",0);
................................................................................
  if( g.argc>3 || nPoll>0 ){
    /* Either there are multiple repositories named on the command-line
    ** or we are polling.  In either case, each backoffice should be run
    ** using a separate sub-process */
    int i;
    time_t iNow = 0;
    time_t ix;
    i64 *aLastRun = fossil_malloc( sizeof(i64)*g.argc );
    memset(aLastRun, 0, sizeof(i64)*g.argc );
    while( 1 /* exit via "break;" */){
      time_t iNext = time(0);
      for(i=2; i<g.argc; i++){
        Blob cmd;
        if( !file_isfile(g.argv[i], ExtFILE) ){
          continue;  /* Repo no longer exists.  Ignore it. */
        }
        if( iNow
         && iNow>file_mtime(g.argv[i], ExtFILE)
         && (nMin<=0 || aLastRun[i]+nMin>iNow)
        ){
          continue;  /* Not yet time to run this one */
        }
        blob_init(&cmd, 0, 0);
        blob_append_escaped_arg(&cmd, g.nameOfExe);
        blob_append(&cmd, " backoffice --nodelay", -1);
        if( g.fAnyTrace ){
          blob_append(&cmd, " --trace", -1);
        }
        blob_append_escaped_arg(&cmd, g.argv[i]);
        nCmd++;
        if( bDebug ){
          fossil_print("COMMAND[%u]: %s\n", nCmd, blob_str(&cmd));
        }
        fossil_system(blob_str(&cmd));
        aLastRun[i] = iNext;
        blob_reset(&cmd);
      }
      if( nPoll<1 ) break;
      iNow = iNext;
      ix = time(0);
      if( ix < iNow+nPoll ){
        sqlite3_int64 nMS = (iNow + nPoll - ix)*1000;
        if( bDebug )fossil_print("SLEEP: %lld\n", nMS);
        sqlite3_sleep((int)nMS);
      }
    }
  }else{
    /* Not polling and only one repository named.  Backoffice is run
    ** once by this process, which then exits */
    if( g.argc==3 ){
      g.zRepositoryOption = g.argv[2];
      g.argc--;
    }
    db_find_and_open_repository(0,0);
    backoffice_thread();
  }