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/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Gearmand client and server library.
*
* Copyright (C) 2011 Data Differential, http://datadifferential.com/
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * The names of its contributors may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <config.h>
#include <libgearman/common.h>
#include <libgearman/unique.hpp>
#include <libgearman/result.hpp>
#include <memory>
struct gearman_result_st;
static gearman_return_t _client_pause_data(gearman_task_st *task)
{
if (task->options.is_paused)
{
task->options.is_paused= false;
return GEARMAN_SUCCESS;
}
if (gearman_task_data_size(task))
{
if (task->result_ptr)
{
task->result_ptr->clear();
}
else
{
task->result_ptr= new (std::nothrow) gearman_result_st(gearman_task_data_size(task));
}
assert_msg(task->result_ptr, "programmer error, result_ptr has not been allocated for task");
gearman_string_append(gearman_task_mutable_result(task)->string(), static_cast<const char*>(gearman_task_data(task)), gearman_task_data_size(task));
}
if (task->recv->command == GEARMAN_COMMAND_WORK_DATA)
{ }
else if (task->recv->command == GEARMAN_COMMAND_WORK_WARNING)
{ }
else if (task->recv->command == GEARMAN_COMMAND_WORK_EXCEPTION)
{ }
else // GEARMAN_COMMAND_WORK_COMPLETE
{
return GEARMAN_SUCCESS;
}
task->options.is_paused= true;
return GEARMAN_PAUSE;
}
static gearman_return_t _client_pause_complete(gearman_task_st *task)
{
return _client_pause_data(task);
}
static gearman_return_t _client_pause_status(gearman_task_st *task)
{
assert_msg(task->recv->command == GEARMAN_COMMAND_WORK_STATUS or
task->recv->command == GEARMAN_COMMAND_STATUS_UNIQUE_RES or
task->recv->command == GEARMAN_COMMAND_STATUS_RES, "status has been called out of order for task, or was registered to run on non-status callback, see gearman_actions_t(3)");
if (task->options.is_paused)
{
task->options.is_paused= false;
return GEARMAN_SUCCESS;
}
task->options.is_paused= true;
return GEARMAN_PAUSE;
}
static gearman_return_t _client_pause_fail(gearman_task_st *task)
{
assert_msg(task->recv->command == GEARMAN_COMMAND_WORK_FAIL,
"fail callback has been called out of order for task, or was registered to run on non-fail callback, see gearman_actions_t(3)");
if (task->options.is_paused)
{
task->options.is_paused= false;
return GEARMAN_SUCCESS;
}
task->options.is_paused= true;
return GEARMAN_PAUSE;
}
static gearman_return_t _client_do_data(gearman_task_st *task)
{
if (gearman_task_data_size(task))
{
if (not task->result_ptr)
{
task->result_ptr= new (std::nothrow) gearman_result_st(gearman_task_data_size(task));
if (not task->result_ptr)
{
return GEARMAN_MEMORY_ALLOCATION_FAILURE;
}
}
gearman_string_append(gearman_task_mutable_result(task)->string(), static_cast<const char*>(gearman_task_data(task)), gearman_task_data_size(task));
}
return GEARMAN_SUCCESS;
}
static gearman_return_t _client_do_complete(gearman_task_st *task)
{
if (gearman_task_data_size(task))
{
if (not task->result_ptr)
{
task->result_ptr= new (std::nothrow) gearman_result_st(gearman_task_data_size(task));
if (not task->result_ptr)
{
return GEARMAN_MEMORY_ALLOCATION_FAILURE;
}
}
gearman_string_append(gearman_task_mutable_result(task)->string(), static_cast<const char*>(gearman_task_data(task)), gearman_task_data_size(task));
}
task->result_rc= GEARMAN_SUCCESS;
return GEARMAN_SUCCESS;
}
const gearman_actions_t &gearman_actions_default(void)
{
static gearman_actions_t default_actions= { 0, 0, 0, 0, 0, 0, 0, 0 };
return default_actions;
}
const gearman_actions_t &gearman_actions_do_default(void)
{
static gearman_actions_t default_actions= { 0, 0, _client_do_data, 0, 0, _client_do_complete, 0, 0 };
return default_actions;
}
const gearman_actions_t &gearman_actions_execute_defaults(void)
{
static gearman_actions_t default_actions= { 0, 0, _client_do_data, 0, 0, _client_do_complete, 0, 0 };
return default_actions;
}
const gearman_actions_t &gearman_actions_pause(void)
{
static gearman_actions_t default_actions= { 0, 0,
_client_pause_data, // gearman_data_fn
_client_pause_data, // gearman_warning_fn
_client_pause_status, // gearman_universal_status_fn
_client_pause_complete, // gearman_complete_fn
_client_pause_data, // gearman_exception_fn
_client_pause_fail }; // gearman_fail_fn
return default_actions;
}
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