src/lib/ostream-private.h

	ostream-private.h revision 9a48c2243fe98ca8393be7908f84d20c634bcdf9
#ifndef OSTREAM_PRIVATE_H
#define OSTREAM_PRIVATE_H

#include "ostream.h"
#include "iostream-private.h"

struct ostream_private {
/* inheritance: */
    struct iostream_private iostream;

/* methods: */
    void (*cork)(struct ostream_private *stream, bool set);
    int (*flush)(struct ostream_private *stream);
    void (*set_flush_callback)(struct ostream_private *stream,
                   stream_flush_callback_t *callback,
                   void *context);
    void (*flush_pending)(struct ostream_private *stream, bool set);
    size_t (*get_used_size)(const struct ostream_private *stream);
    int (*seek)(struct ostream_private *stream, uoff_t offset);
    ssize_t (*sendv)(struct ostream_private *stream,
             const struct const_iovec *iov,
             unsigned int iov_count);
    int (*write_at)(struct ostream_private *stream,
            const void *data, size_t size, uoff_t offset);
    off_t (*send_istream)(struct ostream_private *outstream,
                  struct istream *instream);
    void (*switch_ioloop)(struct ostream_private *stream);

/* data: */
    struct ostream ostream;
    size_t max_buffer_size;

    struct ostream *parent; /* for filter streams */

    int fd;
    stream_flush_callback_t *callback;
    void *context;

    unsigned int corked:1;
    unsigned int closing:1;
    unsigned int last_errors_not_checked:1;
    unsigned int error_handling_disabled:1;
};

struct ostream *
o_stream_create(struct ostream_private *_stream, struct ostream *parent, int fd)
    ATTR_NULL(2);

off_t io_stream_copy(struct ostream *outstream, struct istream *instream,
             size_t block_size);

void o_stream_copy_error_from_parent(struct ostream_private *_stream);

#endif