#ifndef FSCTL_FUGUE_BITS_LOGGER_H
#define FSCTL_FUGUE_BITS_LOGGER_H 1

#include <stdint.h>
#include <stddef.h>
#include <sys/types.h>
#include <stdarg.h>

/* fugue_logger : simple FS logger information */
struct fugue_logger
{
#if 0
    /* logger primitive (can be NULL)
     * - init()     : initialize buffer and internal information
     * - clear()    : clear the content of the buffer (reset)
     * - vwrite()   : inject a text in the buffer (va_arg version)
     * - getlines() : fetch the line starting at `*lineptr`
     * - quit()     : uninitialize buffer and internal information */
    struct {
        int (*init)(struct fugue_logger *l, size_t buffer_size);
        int (*clear)(struct fugue_logger *l);
        ssize_t (*vwrite)(struct fugue_logger *l, char *text, va_list ap);
        ssize_t (*getline)(struct fugue_logger *l, char **lineptr, size_t *n);
        int (*quit)(struct fugue_logger *logger);
    } primitive;
#endif
    /* buffer geometry information
     * - buffer.data         : buffer data
     * - buffer.size         : buffer size
     * - buffer.inject_pos   : text injection position
     * */
    struct {
        char *data;
        size_t size;
        int pos;
    } buffer;
};
typedef struct fugue_logger fugue_logger_t;

#endif /* FSCTL_FUGUE_BITS_LOGGER_H */