Fossil

/*
** Arrange for the given file to be deleted on a failure.
*/
void db_delete_on_failure(const char *zFilename){
  assert( db.nDeleteOnFail<count(db.azDeleteOnFail) );
  db.azDeleteOnFail[db.nDeleteOnFail++] = fossil_strdup(zFilename);
}

/*
** Return the transaction nesting depth.  0 means we are currently
** not in a transaction.
*/
int db_transaction_nesting_depth(void){
  return db.nBegin;
}

/*
** This routine is called by the SQLite commit-hook mechanism
** just prior to each commit.  All this routine does is verify
** that nBegin really is zero.  That insures that transactions
** cannot commit by any means other than by calling db_end_transaction()
** below.

    db.nPriorChanges = sqlite3_total_changes(g.db);
    db.doRollback = 0;
  }
  db.nBegin++;
}
void db_end_transaction(int rollbackFlag){
  if( g.db==0 ) return;
  if( db.nBegin<=0 ){
    fossil_warning("Extra call to db_end_transaction\n");
    return;
  }
  if( rollbackFlag ){
    db.doRollback = 1;
    if( g.fSqlTrace ) fossil_trace("-- ROLLBACK by request\n");
  }
  db.nBegin--;
  if( db.nBegin==0 ){
    int i;

    sqlite3_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, &cur, &hiwtr, 0);
    fprintf(stderr, "-- PCACHE_OVFLOW          %10d %10d\n", cur, hiwtr);
    fprintf(stderr, "-- prepared statements    %10d\n", db.nPrepare);
  }
  while( db.pAllStmt ){
    db_finalize(db.pAllStmt);
  }
  if( db.nBegin ){
    fossil_warning("Missed call to db_end_transaction(). Rolling back.\n");
    db_end_transaction(1);
  }
  pStmt = 0;
  g.dbIgnoreErrors++; /* Stop "database locked" warnings from PRAGMA optimize */
  sqlite3_exec(g.db, "PRAGMA optimize", 0, 0, 0);
  g.dbIgnoreErrors--;
  db_close_config();

  /* If the localdb has a lot of unused free space,
  ** then VACUUM it as we shut down.
  */

**
** This routine is called after certain webpages have been run and
** have already responded.
*/
void email_auto_exec(void){
  int iJulianDay;
  if( g.db==0 ) return;
  if( db_transaction_nesting_depth()!=0 ){
    fossil_warning("Called email_auto_exec() from within a transaction");
    return;
  }
  db_begin_transaction();
  if( !email_tables_exist() ) goto autoexec_done;
  if( !db_get_boolean("email-autoexec",0) ) goto autoexec_done;
  if( !db_exists("SELECT 1 FROM pending_alert") ) goto autoexec_done;
  email_send_alerts(0);
  iJulianDay = db_int(0, "SELECT julianday('now')");

  if( iJulianDay>db_get_int("email-last-digest",0) ){
    if( db_transaction_nesting_depth()!=1 ){

      fossil_warning("Transaction nesting error prior to digest processing");
    }else{
      db_set_int("email-last-digest",iJulianDay,0);

      email_send_alerts(SENDALERT_DIGEST);
    }
  }

autoexec_done:
  db_end_transaction(0);
}

/*

#endif

#if defined(_WIN32)
  const char *zStopperFile;    /* Name of file used to terminate server */
  zStopperFile = find_option("stopper", 0, 1);
#endif

  if( g.zErrlog==0 ){
    g.zErrlog = "-";
    g.fAnyTrace = 1;
  }
  zFileGlob = find_option("files-urlenc",0,1);
  if( zFileGlob ){
    char *z = mprintf("%s", zFileGlob);
    dehttpize(z);
    zFileGlob = z;
  }else{
    zFileGlob = find_option("files",0,1);

      for(j=0; (c = z[j])!=0; j++){
        fossil_print("%02x", c);
      }
      fossil_print("]\n");
    }
  }
}

/*
** WEBPAGE: test-warning
**
** Test error and warning log operation.  This webpage is accessible to
** the administrator only.
**
**     case=1           Issue a fossil_warning() while generating the page.
**     case=2           Extra db_begin_transaction()
**     case=3           Extra db_end_transaction()
*/
void test_warning_page(void){
  int iCase = atoi(PD("case","1"));
  login_check_credentials();
  if( !g.perm.Admin ){ fossil_redirect_home(); return; }
  style_header("Warning Test Page");
  @ <p>This is the test page for case=%d(iCase)</p>
  @ <ol>
  @ <li value='1'> Call fossil_warning()
  if( iCase==1 ){
    fossil_warning("Test warning message from /test-warning");
  }
  @ <li value='2'> Call db_begin_transaction()
  if( iCase==2 ){
    db_begin_transaction();
  }
  @ <li value='3'> Call db_end_transaction()
  if( iCase==3 ){
    db_end_transaction(0);
  }
  @ </ol>
  @ <p>End of test</p>
  style_footer();
}

  const char *z;
  int i;
  va_list ap;
  static const char *const azEnv[] = { "HTTP_HOST", "HTTP_USER_AGENT",
      "PATH_INFO", "QUERY_STRING", "REMOTE_ADDR", "REQUEST_METHOD",
      "REQUEST_URI", "SCRIPT_NAME" };
  if( g.zErrlog==0 ) return;
  if( g.zErrlog[0]=='-' && g.zErrlog[1]==0 ){
    out = stderr;
  }else{
    out = fossil_fopen(g.zErrlog, "a");
    if( out==0 ) return;
  }
  now = time(0);
  pNow = gmtime(&now);
  fprintf(out, "------------- %04d-%02d-%02d %02d:%02d:%02d UTC ------------\n",
          pNow->tm_year+1900, pNow->tm_mon+1, pNow->tm_mday+1,
          pNow->tm_hour, pNow->tm_min, pNow->tm_sec);
  va_start(ap, zFormat);
  vfprintf(out, zFormat, ap);