Edit Report a Bug

    GearmanClient::doNormal

    (No version information available, might only be in Git)

    GearmanClient::doNormal — Run a single task and return a result

    Descrierea

    public GearmanClient::doNormal ( string $function_name , string $workload , string $unique = ? ) : string

    Runs a single task and returns a string representation of the result. It is up to the GearmanClient and GearmanWorker to agree on the format of the result.

    Parametri

    function_name

    O funcție înregistrată pe care trebuie să o execute serverul executor

    workload

    Datele serializate pentru a fi procesate

    unique

    Un ID unical utilizat pentru a identifica o anumită sarcină

    Valorile întoarse

    A string representing the results of running a task.

    Exemple

    Example #1 Simple job submission with immediate return

    <?php

    ?>
    <?php

    # Client code

    echo "Starting\n";

    # Create our client object.
    $gmclient= new GearmanClient();

    # Add default server (localhost).
    $gmclient->addServer();

    echo     "Sending job\n";

    $result = $gmclient->doNormal("reverse", "Hello!");

    echo     "Success: $result\n";

    ?>
    <?php

    echo "Starting\n";

    # Create our worker object.
    $gmworker= new GearmanWorker();

    # Add default server (localhost).
    $gmworker->addServer();

    # Register function "reverse" with the server. Change the worker function to
    # "reverse_fn_fast" for a faster worker with no output.
    $gmworker->addFunction("reverse", "reverse_fn");

    print     "Waiting for job...\n";
    while(    $gmworker->work())
    {
      if (    $gmworker->returnCode() != GEARMAN_SUCCESS)
      {
        echo     "return_code: " . $gmworker->returnCode() . "\n";
        break;
      }
    }

    function     reverse_fn($job)
    {
      return     strrev($job->workload());
    }

    ?>

    Exemplul de mai sus va afișa ceva similar cu:

    Starting
Sending job
Success: !olleH

    Example #2 Submitting a job and retrieving incremental status

    A job is submitted and the script loops to retrieve status information. The worker has an artificial delay which results in a long running job and sends status and data as processing occurs. Each subsequent call to GearmanClient::doNormal() produces status information on the running job.

    <?php

    # Client code

    # Create our client object.
    $gmclient= new GearmanClient();

    # Add default server (localhost).
    $gmclient->addServer();

    echo     "Sending job\n";

    # Send reverse job
    do
    {
          $result = $gmclient->doNormal("reverse", "Hello!");
          # Check for various return packets and errors.

          switch($gmclient->returnCode())
      {
        case     GEARMAN_WORK_DATA:
          echo     "Data: $result\n";
          break;
        case     GEARMAN_WORK_STATUS:
          list(    $numerator, $denominator)= $gmclient->doStatus();
          echo     "Status: $numerator/$denominator complete\n";
          break;
        case     GEARMAN_WORK_FAIL:
          echo     "Failed\n";
          exit;
        case     GEARMAN_SUCCESS:
          break;
        default:
          echo     "RET: " . $gmclient->returnCode() . "\n";
          echo     "Error: " . $gmclient->error() . "\n";
          echo     "Errno: " . $gmclient->getErrno() . "\n";
          exit;
      }
    }
    while(    $gmclient->returnCode() != GEARMAN_SUCCESS);

    echo     "Success: $result\n";

    ?>
    <?php

    # Worker code

    echo "Starting\n";

    # Create our worker object.
    $gmworker= new GearmanWorker();

    # Add default server (localhost).
    $gmworker->addServer();

    # Register function "reverse" with the server.
    $gmworker->addFunction("reverse", "reverse_fn");

    print     "Waiting for job...\n";
    while(    $gmworker->work())
    {
      if (    $gmworker->returnCode() != GEARMAN_SUCCESS)
      {
        echo     "return_code: " . $gmworker->returnCode() . "\n";
        break;
      }
    }

    function     reverse_fn($job)
    {
      echo     "Received job: " . $job->handle() . "\n";

          $workload = $job->workload();
          $workload_size = $job->workloadSize();

      echo     "Workload: $workload ($workload_size)\n";

          # This status loop is not needed, just showing how it works
          for ($x= 0; $x < $workload_size; $x++)
      {
        echo     "Sending status: " + $x + 1 . "/$workload_size complete\n";
            $job->sendStatus($x+1, $workload_size);
            $job->sendData(substr($workload, $x, 1));
            sleep(1);
      }

          $result= strrev($workload);
      echo     "Result: $result\n";

          # Return what we want to send back to the client.
          return $result;
    }

    ?>

    Exemplul de mai sus va afișa ceva similar cu:

    Worker output: 

    Starting
Waiting for job...
Received job: H:foo.local:106
Workload: Hello! (6)
1/6 complete
2/6 complete
3/6 complete
4/6 complete
5/6 complete
6/6 complete
Result: !olleH

    Client output: 

    Starting
Sending job
Status: 1/6 complete
Data: H
Status: 2/6 complete
Data: e
Status: 3/6 complete
Data: l
Status: 4/6 complete
Data: l
Status: 5/6 complete
Data: o
Status: 6/6 complete
Data: !
Success: !olleH

    A se vedea și

    add a note add a note

    User Contributed Notes 2 notes

    up
    0
    stanislav dot reshetnev at gmail dot com
    10 years ago
    doNormal don't work in version php_gearman 0.8.3:

    PHP Fatal error:  Call to undefined method GearmanClient::doNormal()

    But it exist in version 1.1.2.
    up
    -1
    fastest963 at gmail dot com
    11 years ago
    do() or doNormal() will block until the job is accepted by the worker. Looping is only necessary if you care about the response from the job. Use setTimeout() to control how long PHP will block.

    If it does timeout, it throws a PHP Warning:
    PHP Warning:  GearmanClient::do(): _client_do(GEARMAN_TIMEOUT) occured during gearman_client_run_tasks() -> libgearman/client.cc:174
    add a note add a note
    To Top