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/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Gearmand client and server library.
*
* Copyright (C) 2011 Data Differential, http://datadifferential.com/
* Copyright (C) 2008 Brian Aker, Eric Day
* 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/universal.hpp>
#include <libgearman/add.hpp>
#include <libgearman/packet.hpp>
#include <cassert>
#include <cerrno>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <memory>
#include <uuid/uuid.h>
gearman_task_st *add_task(gearman_client_st& client,
void *context,
gearman_command_t command,
const gearman_string_t &function,
gearman_unique_t &unique,
const gearman_string_t &workload,
time_t when,
const gearman_actions_t &actions)
{
return add_task(client, NULL, context, command, function, unique, workload, when, actions);
}
gearman_task_st *add_task_ptr(gearman_client_st& client,
gearman_task_st *task,
void *context,
gearman_command_t command,
const char *function_name,
const char *unique,
const void *workload_str, size_t workload_size,
time_t when,
gearman_return_t *ret_ptr,
const gearman_actions_t &actions)
{
gearman_return_t unused;
if (ret_ptr == NULL)
{
ret_ptr= &unused;
}
gearman_string_t function= { gearman_string_param_cstr(function_name) };
gearman_unique_t local_unique= gearman_unique_make(unique, unique ? strlen(unique) : 0);
gearman_string_t workload= { static_cast<const char *>(workload_str), workload_size };
task= add_task(client, task, context, command, function, local_unique, workload, when, actions);
if (task == NULL)
{
*ret_ptr= gearman_universal_error_code(client.universal);
return NULL;
}
*ret_ptr= GEARMAN_SUCCESS;
return task;
}
gearman_task_st *add_task(gearman_client_st& client,
gearman_task_st *task,
void *context,
gearman_command_t command,
const gearman_string_t &function,
gearman_unique_t &unique,
const gearman_string_t &workload,
time_t when,
const gearman_actions_t &actions)
{
const void *args[4];
size_t args_size[4];
if (gearman_size(function) == 0 or gearman_c_str(function) == NULL or gearman_size(function) > GEARMAN_FUNCTION_MAX_SIZE)
{
if (gearman_size(function) > GEARMAN_FUNCTION_MAX_SIZE)
{
gearman_error(client.universal, GEARMAN_INVALID_ARGUMENT, "function name longer then GEARMAN_MAX_FUNCTION_SIZE");
}
else
{
gearman_error(client.universal, GEARMAN_INVALID_ARGUMENT, "invalid function");
}
return NULL;
}
if (gearman_size(unique) > GEARMAN_MAX_UNIQUE_SIZE)
{
gearman_error(client.universal, GEARMAN_INVALID_ARGUMENT, "unique name longer then GEARMAN_MAX_UNIQUE_SIZE");
return NULL;
}
if ((gearman_size(workload) && gearman_c_str(workload) == NULL) or (gearman_size(workload) == 0 && gearman_c_str(workload)))
{
gearman_error(client.universal, GEARMAN_INVALID_ARGUMENT, "invalid workload");
return NULL;
}
task= gearman_task_internal_create(&client, task);
if (task == NULL)
{
gearman_error(client.universal, GEARMAN_MEMORY_ALLOCATION_FAILURE, "");
return NULL;
}
task->context= context;
task->func= actions;
if (gearman_size(unique))
{
task->unique_length= gearman_size(unique);
memcpy(task->unique, gearman_c_str(unique), gearman_size(unique));
}
else
{
uuid_t uuid;
uuid_generate(uuid);
uuid_unparse(uuid, task->unique);
task->unique_length= GEARMAN_MAX_UUID_SIZE;
}
task->unique[task->unique_length]= 0;
gearman_return_t rc;
switch (command)
{
case GEARMAN_COMMAND_SUBMIT_JOB:
case GEARMAN_COMMAND_SUBMIT_JOB_LOW:
case GEARMAN_COMMAND_SUBMIT_JOB_HIGH:
rc= libgearman::protocol::submit(*task,
command,
function,
workload);
break;
case GEARMAN_COMMAND_SUBMIT_JOB_EPOCH:
rc= libgearman::protocol::submit_epoch(*task,
function,
workload,
when);
break;
case GEARMAN_COMMAND_SUBMIT_JOB_BG:
case GEARMAN_COMMAND_SUBMIT_JOB_LOW_BG:
case GEARMAN_COMMAND_SUBMIT_JOB_HIGH_BG:
rc= libgearman::protocol::submit_background(*task,
command,
function,
workload);
break;
case GEARMAN_COMMAND_SUBMIT_REDUCE_JOB:
case GEARMAN_COMMAND_SUBMIT_REDUCE_JOB_BACKGROUND:
assert(0);
rc= GEARMAN_INVALID_ARGUMENT;
break;
case GEARMAN_COMMAND_SUBMIT_JOB_SCHED:
case GEARMAN_COMMAND_ALL_YOURS:
case GEARMAN_COMMAND_CANT_DO:
case GEARMAN_COMMAND_CAN_DO:
case GEARMAN_COMMAND_CAN_DO_TIMEOUT:
case GEARMAN_COMMAND_ECHO_REQ:
case GEARMAN_COMMAND_ECHO_RES:
case GEARMAN_COMMAND_ERROR:
case GEARMAN_COMMAND_GET_STATUS:
case GEARMAN_COMMAND_GRAB_JOB:
case GEARMAN_COMMAND_GRAB_JOB_ALL:
case GEARMAN_COMMAND_GRAB_JOB_UNIQ:
case GEARMAN_COMMAND_JOB_ASSIGN:
case GEARMAN_COMMAND_JOB_ASSIGN_ALL:
case GEARMAN_COMMAND_JOB_ASSIGN_UNIQ:
case GEARMAN_COMMAND_JOB_CREATED:
case GEARMAN_COMMAND_MAX:
case GEARMAN_COMMAND_NOOP:
case GEARMAN_COMMAND_NO_JOB:
case GEARMAN_COMMAND_OPTION_REQ:
case GEARMAN_COMMAND_OPTION_RES:
case GEARMAN_COMMAND_PRE_SLEEP:
case GEARMAN_COMMAND_RESET_ABILITIES:
case GEARMAN_COMMAND_SET_CLIENT_ID:
case GEARMAN_COMMAND_STATUS_RES:
case GEARMAN_COMMAND_TEXT:
case GEARMAN_COMMAND_UNUSED:
case GEARMAN_COMMAND_WORK_COMPLETE:
case GEARMAN_COMMAND_WORK_DATA:
case GEARMAN_COMMAND_WORK_EXCEPTION:
case GEARMAN_COMMAND_WORK_FAIL:
case GEARMAN_COMMAND_WORK_STATUS:
case GEARMAN_COMMAND_WORK_WARNING:
case GEARMAN_COMMAND_GET_UNIQUE_STATUS:
case GEARMAN_COMMAND_STATUS_UNIQUE_RES:
assert(0);
rc= GEARMAN_INVALID_ARGUMENT;
break;
}
if (gearman_success(rc))
{
client.new_tasks++;
client.running_tasks++;
task->options.send_in_use= true;
return task;
}
gearman_task_free(task);
return NULL;
}
gearman_task_st *add_reducer_task(gearman_client_st *client,
gearman_command_t command,
const gearman_job_priority_t,
const gearman_string_t &function,
const gearman_string_t &reducer,
const gearman_unique_t &unique,
const gearman_string_t &workload,
const gearman_actions_t &actions,
const time_t,
void *context)
{
uuid_t uuid;
const void *args[5];
size_t args_size[5];
if (gearman_size(function) == 0 or gearman_c_str(function) == NULL or gearman_size(function) > GEARMAN_FUNCTION_MAX_SIZE)
{
if (gearman_size(function) > GEARMAN_FUNCTION_MAX_SIZE)
{
gearman_error(client->universal, GEARMAN_INVALID_ARGUMENT, "function name longer then GEARMAN_MAX_FUNCTION_SIZE");
}
else
{
gearman_error(client->universal, GEARMAN_INVALID_ARGUMENT, "invalid function");
}
return NULL;
}
if (gearman_size(unique) > GEARMAN_MAX_UNIQUE_SIZE)
{
gearman_error(client->universal, GEARMAN_INVALID_ARGUMENT, "unique name longer then GEARMAN_MAX_UNIQUE_SIZE");
return NULL;
}
if ((gearman_size(workload) and not gearman_c_str(workload)) or (gearman_size(workload) == 0 && gearman_c_str(workload)))
{
gearman_error(client->universal, GEARMAN_INVALID_ARGUMENT, "invalid workload");
return NULL;
}
gearman_task_st *task= gearman_task_internal_create(client, NULL);
if (task == NULL)
{
gearman_error(client->universal, GEARMAN_MEMORY_ALLOCATION_FAILURE, "");
return NULL;
}
task->context= context;
task->func= actions;
/**
@todo fix it so that NULL is done by default by the API not by happenstance.
*/
char function_buffer[1024];
if (client->universal._namespace)
{
char *ptr= function_buffer;
memcpy(ptr, gearman_string_value(client->universal._namespace), gearman_string_length(client->universal._namespace));
ptr+= gearman_string_length(client->universal._namespace);
memcpy(ptr, gearman_c_str(function), gearman_size(function) +1);
ptr+= gearman_size(function);
args[0]= function_buffer;
args_size[0]= ptr- function_buffer +1;
}
else
{
args[0]= gearman_c_str(function);
args_size[0]= gearman_size(function) + 1;
}
if (gearman_size(unique))
{
args[1]= gearman_c_str(unique);
args_size[1]= gearman_size(unique) + 1;
strncpy(task->unique, gearman_c_str(unique), gearman_size(unique));
}
else
{
uuid_generate(uuid);
uuid_unparse(uuid, task->unique);
task->unique[GEARMAN_MAX_UUID_SIZE]= 0;
args[1]= task->unique;
args_size[1]= GEARMAN_MAX_UUID_SIZE +1; // +1 is for the needed null
}
assert_msg(command == GEARMAN_COMMAND_SUBMIT_REDUCE_JOB or command == GEARMAN_COMMAND_SUBMIT_REDUCE_JOB_BACKGROUND,
"Command was not appropriate for request");
char reducer_buffer[1024];
if (client->universal._namespace)
{
char *ptr= reducer_buffer;
memcpy(ptr, gearman_string_value(client->universal._namespace), gearman_string_length(client->universal._namespace));
ptr+= gearman_string_length(client->universal._namespace);
memcpy(ptr, gearman_c_str(reducer), gearman_size(reducer) +1);
ptr+= gearman_size(reducer);
args[2]= reducer_buffer;
args_size[2]= ptr- reducer_buffer +1;
}
else
{
args[2]= gearman_c_str(reducer);
args_size[2]= gearman_size(reducer) +1;
}
char aggregate[1];
aggregate[0]= 0;
args[3]= aggregate;
args_size[3]= 1;
assert_msg(gearman_c_str(workload), "Invalid workload (NULL)");
assert_msg(gearman_size(workload), "Invalid workload of zero");
args[4]= gearman_c_str(workload);
args_size[4]= gearman_size(workload);
gearman_return_t rc;
if (gearman_success(rc= gearman_packet_create_args(client->universal, task->send,
GEARMAN_MAGIC_REQUEST, command,
args, args_size,
5)))
{
client->new_tasks++;
client->running_tasks++;
task->options.send_in_use= true;
}
else
{
gearman_gerror(client->universal, rc);
gearman_task_free(task);
task= NULL;
}
task->type= GEARMAN_TASK_KIND_EXECUTE;
return task;
}
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