NAME

gearman_client_do_low - Gearmand Documentation, http://gearman.info/

SYNOPSIS

#include <libgearman/gearman.h>

Changed in version 0.21: GEARMAN_PAUSE will no longer be returned. A do operation will now run till completion or error.

DESCRIPTION

gearman_client_do() executes a single request to the gearmand server and waits for a reply.

gearman_client_do_high() and gearman_client_do_low() are identical to gearman_client_do(), only they set the priority to either high or low.

All of the functions will block until either a response or an error is returned.

RETURN VALUE

gearman_client_do() returns a pointer to a value that the caller must release. If ret_ptr is provided any errors that have occurred will be stored in it. Since a NULL/zero value is a valid value, you will always need to check ret_ptr if you are concerned with errors.

EXAMPLE

/*
# Gearman server and library
# Copyright (C) 2012 Data Differential, http://datadifferential.com/
# All rights reserved.
#
# Use and distribution licensed under the BSD license.  See
# the COPYING file in this directory for full text.
*/
#include <string.h>
#include <stdlib.h>
#include <libgearman/gearman.h>
int main(void)
{


  gearman_client_st *client= gearman_client_create(NULL);


  gearman_return_t ret= gearman_client_add_server(client, "localhost", 0);


  if (gearman_failed(ret))


  {


    return EXIT_FAILURE;


  }


  size_t result_size;


  gearman_return_t rc;


  void *value= gearman_client_do(client, "reverse_function", "unique_value", 


                                 "my string to reverse", strlen("my string to reverse"), 


                                 &result_size, &rc);


  if (gearman_success(rc))


  {


    // Make use of value


  }


  free(value);


  gearman_client_free(client);


  return 0;
}

HOME

To find out more information please check: http://gearman.info/

SEE ALSO:

AUTHOR

Data Differential http://www.datadifferential.com/

COPYRIGHT

2011-2020, Data Differential, http://www.datadifferential.com/