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    GearmanClient::doNormal

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

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

    说明

    public GearmanClient::doNormal(string $function, string $workload, ?string $unique = null): 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.

    参数

    function

    由程序自动执行的已注册函数。

    workload

    被处理的序列化数据。

    unique

    用于标识特定任务的唯一性 ID。

    返回值

    A string representing the results of running a task.

    示例

    示例 #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());
    }

    ?>

    以上示例的输出类似于：

    Starting
Sending job
Success: !olleH

    示例 #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;
    }

    ?>

    以上示例的输出类似于：

    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

    参见

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    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
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