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#ifndef _FASTWRITER_PRIVATE_H
#define _FASTWRITER_PRIVATE_H
#define FASTWRITER_SYNCIO_ALIGN 512
#define FASTWRITER_DEFAULT_BUFFER_SIZE 134217728 /* 128 MB */
#define FASTWRITER_RESERVE_MEMORY 536870912 /* 512 MB */
#include <pthread.h>
#include "fastwriter.h"
typedef struct {
fastwriter_flags_t flags;
size_t buffer_size;
} fastwriter_parameters_t;
typedef enum {
FASTWRITER_WRITE_FLAGS_DEFAULT = 0,
FASTWRITER_WRITE_FLAG_FORCE = 1 /**< Force writting all passed data */
} fastwriter_write_flags_t;
typedef struct {
int (*open)(fastwriter_t *ctx, const char *name, fastwriter_flags_t flags);
void (*close)(fastwriter_t *ctx);
int (*write)(fastwriter_t *ctx, fastwriter_write_flags_t flags, size_t size, void *data, size_t *written);
} fastwriter_api_t;
struct fastwrtier_s {
fastwriter_api_t *api; /**< Writer API */
void *ctx; /**< Writer Context */
fastwriter_flags_t flags;
int clean_locks;
volatile int err; /**< indicates error reported by the writter backend */
volatile int run_flag;
pthread_t wthread;
pthread_cond_t data_cond; /**< broadcasted when new data arrives */
pthread_mutex_t data_cond_mutex;
pthread_cond_t space_cond; /**< broadcasted when some space is freed */
pthread_mutex_t space_cond_mutex;
void *buffer;
size_t size; /**< size of the ring buffer in bytes */
size_t max_usage; /**< maximal number of bytes used in ring buffer */
volatile size_t tail; /**< first unwritten data in the ring buffer */
volatile size_t head; /**< last commited data in the ring buffer */
size_t pos; /**< last pushed data in the ring buffer */
size_t written; /**< number of bytes written */
size_t commited; /**< number of bytes commited */
size_t chunked; /**< number of bytes chunked */
fastwriter_parameters_t params;
};
#endif /* _FASTWRITER_PRIVATE_H */
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