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// Copyright 2018 Mimecast Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef RWORKER_H
#define RWORKER_H
#include <pthread.h>
#include "../datas/amap.h"
#include "../datas/rbuffer.h"
#include "../defaults.h"
#include "../options.h"
#include "rstats.h"
/**
* @brief Represents a worker process.
*
* This represents an I/O replay worker process. The user can specify the
* amount of worker processes via the -p command line switch. This is not
* to confuse with rprocess_s, which represents an original captured process
* and we now want to replay the I/O for!
*/
typedef struct {
int rworker_num; /**< The current worker ID */
amap_s* fds_map; /**< Holding all file descriptors */
amap_s* rprocess_map; /**< Holding all processes handled by this worker */
amap_s* rthread_map; /**< Holding all threads handled by this worker */
rbuffer_s *task_buffer; /**< Buffering thread tasks to be reused */
pthread_mutex_t task_buffer_mutex; /**< To sync access to task_buffer */
rbuffer_s *rthread_buffer; /**< Buffering idle threads to be reused */
pthread_mutex_t rthread_buffer_mutex; /**< Sync access to rthread_buffer */
options_s *opts; /**< To synchronise access to rthread_buffer */
rworker_stats_s *worker_stats; /**< Object holding per worker statistics */
#ifdef RTHREAD_DEBUG
FILE *rworker_fd; /**< For debugging purposes only */
#endif
} rworker_s;
/**
* @brief Creates a new worker object
*
* @param rworker_num The worker number
* @param fds_map A map of all virtual file descriptor objects
* @param num_vsizes The amount of virtual sizes/total file paths of the test
* @param num_pids The total amount of virtual process IDs used in this test
* @param opts A pointer to the options object
* @param worker_stats A pointer to the worker stats object
* @return The new worker object
*/
rworker_s* rworker_new(const int rworker_num, amap_s *fds_map,
const long num_vsizes, const long num_pids,
options_s* opts, rworker_stats_s *worker_stats);
/**
* @brief Destroys a worker object
*
* @param w The worker object to be destroyed
*/
void rworker_destroy(rworker_s* w);
/**
* @brief Makes the worker to process all .replay lines
*
* @param w The responsible worker object
* @param num_lines The total amount of I/O op lines in the .replay file
* @return SUCCESS if everything went fine
*/
status_e rworker_process_lines(rworker_s* w, const long num_lines);
#endif // RWORKER_H
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