PHP 5.4.36 Released

GearmanClient::doNormal

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

GearmanClient::doNormalRun a single task and return a result

Descrierea

public string GearmanClient::doNormal ( string $function_name , string $workload [, string $unique ] )

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 ($x0$x $workload_size$x++)
  {
    echo 
"Sending status: " $x "/$workload_size complete\n";
    
$job->sendStatus($x+1$workload_size);
    
$job->sendData(substr($workload$x1));
    
sleep(1);
  }

  
$resultstrrev($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

Vedeți de asemenea

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User Contributed Notes 2 notes

up
0
stanislav dot reshetnev at gmail dot com
1 month 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
-2
fastest963 at gmail dot com
1 year 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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