Creating background tasks

SYNOPSIS

#include <libgearman/gearman.h>

gearman_task_st *gearman_client_add_task_background(gearman_client_st *client, gearman_task_st *task, void *context, const char *function_name, const char *unique, const void *workload, size_t workload_size, gearman_return_t *ret_ptr)

gearman_task_st *gearman_client_add_task_high_background(gearman_client_st *client, gearman_task_st *task, void *context, const char *function_name, const char *unique, const void *workload, size_t workload_size, gearman_return_t *ret_ptr)

gearman_task_st *gearman_client_add_task_low_background(gearman_client_st *client, gearman_task_st *task, void *context, const char *function_name, const char *unique, const void *workload, size_t workload_size, gearman_return_t *ret_ptr)

Link with -lgearman

DESCRIPTION

gearman_client_add_task_background() creates a background task and adds it ito the given gearman_client_st. Execution of the task does not begin until gearman_client_run_tasks() is called.

If the unique value is not set, then a unique will be assigned.

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

Warning

You may wish to avoid using gearman_client_add_task_background() with a stack based allocated gearman_task_st. The most common issues related to ABI safety involve stack allocated structures. If you use a stack based gearman_task_st you must free it with gearman_task_free().

RETURN VALUE

The gearman_task_st is created and a pointer to it is returned. On error NULL is returned and ret_ptr is set with a gearman_return_t.

HOME

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

See also

gearmand(8) libgearman(3) gearman_task_st