56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
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#ifndef _INCLUDE_MEMFILE_H
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#define _INCLUDE_MEMFILE_H
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#include <malloc.h>
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typedef struct memfile_s
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{
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char *name;
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char *base;
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long offs;
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long usedoffs;
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size_t size;
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int _static;
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} memfile_t;
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/**
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* Creates a new memory file
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* init is the initial size in bytes
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*/
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memfile_t *memfile_creat(const char *name, size_t init);
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/**
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* Frees the memory associated.
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*/
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void memfile_destroy(memfile_t *mf);
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/**
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* Seeks to a given offset (always from start)
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*/
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void memfile_seek(memfile_t *mf, long seek);
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/**
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* Writes to a memory buffer (expands as necessary).
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* Returns 1 on success, 0 on failure.
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*/
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int memfile_write(memfile_t *mf, const void *buffer, size_t size);
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/**
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* Reads a number of bytes from a memory buffer.
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* Returns the number of bytes read until the end was hit.
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*/
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size_t memfile_read(memfile_t *mf, void *buffer, size_t maxsize);
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/**
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* Returns the current position from the start.
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*/
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long memfile_tell(memfile_t *mf);
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/**
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* Resets all the states of the memory buffer.
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* (does not actually free or zero memory)
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*/
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void memfile_reset(memfile_t *mf);
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#endif //_INCLUDE_MEMFILE_H
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