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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 GENERATE_H
#define GENERATE_H
#include "gwriter.h"
#include "../datas/amap.h"
#include "../datas/hmap.h"
#include "../datas/rbuffer.h"
#include "../defaults.h"
#include "../mounts.h"
#include "../options.h"
// Forward declarations (header include hell)
struct gtask_s_;
/**
* @brief The generate object definition
*
* This is the general data structure required to generate a .replay file from
* the .capture file.
*/
typedef struct generate_s_ {
long lineno; /**< The current line number */
long num_lines_filtered; /**< The amount of lines filtered out */
long start_time; /**< The start time from the .capture file */
char *name; /**< The name of the test specified by the user */
FILE *replay_fd; /**< The fd of the .replay file */
mounts_s *mps; /**< The mounts object */
hmap_s *mmap_map; /**< mmap address mappings */
amap_s *pid_map; /**< A map of all virtual process objects */
unsigned long num_mapped_pids; /**< The amount of mapped PIDs */
unsigned long num_mapped_fds; /**< The amount of mapped FDs */
hmap_s *vsize_map; /**< A hash map of all virtual size objects */
unsigned long num_vsizes; /**< The amount of virtual sizes */
options_s *opts; /**< A pointer to the options object */
rbuffer_s *vfd_buffer; /**< A virtual fd buffer, for reusing these */
rbuffer_s *reuse_queue; /**< A task buffer, for reusing these */
struct gwriter_s_ *writer; /**< A pointer to the writer object */
} generate_s;
/**
* @brief Creates a new generate object
*
* @param opts The options object
* @return The new generate object
*/
generate_s* generate_new(options_s *opts);
/**
* @brief Destroys a generate object
*
* @param g The generate object to destroy
*/
void generate_destroy(generate_s* g);
/**
* @brief Generates a .replay file from a .capture file
*
* @param opts The options object
* @return SUCCESS on success
*/
status_e generate_run(options_s *opts);
/**
* @brief Callback to write the INIT section to the .replay file
*
* This function writes a list of all pre-required
* paths to the .replay file. That then can be used
* by ioreplay to initialise the test enironment.
*
* @param data A pointer to the vsize timestamp object
*/
void generate_write_init_cb(void *data);
/**
* @brief Retrieves the virtual size object of a given path
*
* A new one will be created in case there is no such virtual size object yet.
*
* @param g The generate object
* @param t The task object (vfd will be stored to t->vfd)
* @param path The file path
* @return The virtual size object
*/
vsize_s* generate_vsize_by_path(generate_s *g, struct gtask_s_ *t,
char *path);
/**
* @brief Retrieves the virtual process object of a given real PID
*
* A new one will be created in case there is no such virtual process object
* yet.
*
* @param g The generate object
* @param t The task object (vfd will be stored to t->gprocess)
*/
void generate_gprocess_by_realpid(generate_s *g, struct gtask_s_ *t);
#endif // GENERATE_H
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