stream.h

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#pragma once
 
#include <banjo/api.h>
#include <banjo/error.h>

typedef struct bj_stream_t bj_stream; 

typedef enum {
    BJ_SEEK_BEGIN   = 0x00, 
    BJ_SEEK_CURRENT = 0x01, 
    BJ_SEEK_END     = 0x02, 
} bj_seek_origin;
 

BANJO_EXPORT bj_stream* bj_stream_alloc(
    void
);

BANJO_EXPORT bj_stream* bj_stream_new_read(
    const void* p_data,
    size_t length
);

BANJO_EXPORT bj_stream* bj_stream_new_read_from_file(
    const char*       p_path,
    bj_error**        p_error
);

BANJO_EXPORT void bj_stream_del(
    bj_stream* p_stream
);

BANJO_EXPORT size_t bj_stream_read(
    bj_stream* p_stream,
    void* p_dest,
    size_t count
);

BANJO_EXPORT size_t bj_stream_len(
    bj_stream* p_stream
);

BANJO_EXPORT size_t bj_stream_seek(
    bj_stream* p_stream,
    ptrdiff_t position,
    bj_seek_origin from
);

BANJO_EXPORT size_t bj_stream_tell(
    bj_stream* p_stream
);

#define bj_stream_read_t(stream, type, buffer) bj_stream_read(stream, buffer, sizeof(type))

#define bj_stream_skip_t(stream, type) bj_stream_read(stream, 0, sizeof(type))