ds@1952: #ifndef _INCLUDE_MEMFILE_H
ds@1952: #define _INCLUDE_MEMFILE_H
ds@1952: 
dvander@2471: #include <stdlib.h>
ds@1952: 
ds@1952: typedef struct memfile_s
ds@1952: {
ds@1952: 	char *name;
ds@1952: 	char *base;
ds@1952: 	long offs;
ds@1952: 	long usedoffs;
ds@1952: 	size_t size;
ds@1952: 	int _static;
ds@1952: } memfile_t;
ds@1952: 
ds@1952: /**
ds@1952:  * Creates a new memory file
ds@1952:  * init is the initial size in bytes
ds@1952:  */
ds@1952: memfile_t *memfile_creat(const char *name, size_t init);
ds@1952: 
ds@1952: /**
ds@1952:  * Frees the memory associated.
ds@1952:  */
ds@1952: void memfile_destroy(memfile_t *mf);
ds@1952: 
ds@1952: /**
ds@1952:  * Seeks to a given offset (always from start)
ds@1952:  */
ds@1952: void memfile_seek(memfile_t *mf, long seek);
ds@1952: 
ds@1952: /**
ds@1952:  * Writes to a memory buffer (expands as necessary).
ds@1952:  * Returns 1 on success, 0 on failure.
ds@1952:  */
ds@1952: int memfile_write(memfile_t *mf, const void *buffer, size_t size);
ds@1952: 
ds@1952: /**
ds@1952:  * Reads a number of bytes from a memory buffer.
ds@1952:  * Returns the number of bytes read until the end was hit.
ds@1952:  */
ds@1952: size_t memfile_read(memfile_t *mf, void *buffer, size_t maxsize);
ds@1952: 
ds@1952: /**
ds@1952:  * Returns the current position from the start.
ds@1952:  */
ds@1952: long memfile_tell(memfile_t *mf);
ds@1952: 
ds@1952: /**
ds@1952:  * Resets all the states of the memory buffer.
ds@1952:  * (does not actually free or zero memory)
ds@1952:  */
ds@1952: void memfile_reset(memfile_t *mf);
ds@1952: 
ds@1952: #endif //_INCLUDE_MEMFILE_H