vmalloc.h File Reference

#include <stddef.h>

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Data Structures
struct	_vmalloc_s

Typedefs
typedef struct _vmalloc_s	Vmalloc_t

Functions
Vmalloc_t *	vmopen (void)
void	vmclose (Vmalloc_t *)
void	vmclear (Vmalloc_t *)
void *	vmalloc (Vmalloc_t *vm, size_t size)
void	vmfree (Vmalloc_t *vm, void *data)
char *	vmstrdup (Vmalloc_t *, const char *)

Typedef Documentation

Vmalloc_t

typedef struct _vmalloc_s Vmalloc_t

Definition at line 24 of file vmalloc.h.

Function Documentation

vmalloc()

void * vmalloc	(	Vmalloc_t *	vm,
		size_t	size
	)

allocate heap memory

Parameters

vm	region allocating from
size	desired block size

Returns

Memory fulfilling the allocation request or NULL on failure

Definition at line 40 of file vmalloc.c.

References _vmalloc_s::allocated, make_space(), malloc(), NULL, and _vmalloc_s::size.

Referenced by eval(), exprintf(), exsplit(), exstralloc(), exsubstr(), extoken_fn(), extokens(), prformat(), scformat(), str_add(), str_and(), str_ior(), str_mod(), str_mpy(), str_xor(), and vmstrdup().

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vmclear()

void vmclear ( Vmalloc_t *  vm )

extern

Clear out all allocated space.

Note that this leaves the allocation region itself usable, but just frees all previous allocations made within this region.

Parameters

vm	Vmalloc to operate on

Definition at line 21 of file vmclear.c.

References _vmalloc_s::allocated, _vmalloc_s::capacity, free(), NULL, and _vmalloc_s::size.

Referenced by vmclose().

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vmclose()

void vmclose ( Vmalloc_t *  vm )

extern

Close down a region.

Parameters

vm	Vmalloc to operate on

Definition at line 18 of file vmclose.c.

References free(), and vmclear().

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vmfree()

void vmfree	(	Vmalloc_t *	vm,
		void *	data
	)

free heap memory

Parameters

vm	Region the pointer was originally allocated from
data	The pointer originally received from vmalloc

Definition at line 57 of file vmalloc.c.

References _vmalloc_s::allocated, free(), and _vmalloc_s::size.

Referenced by eval(), prformat(), and scformat().

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vmopen()

Vmalloc_t * vmopen ( void  )

extern

Open a new region of allocation.

Returns

A newly allocated Vmalloc or NULL on failure

Definition at line 18 of file vmopen.c.

References NULL.

Referenced by exopen().

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vmstrdup()

char * vmstrdup ( Vmalloc_t *  v, const char *  s  )

extern

Definition at line 19 of file vmstrdup.c.

References len(), NULL, and vmalloc().

Referenced by eval(), exstring(), exsub(), extoken_fn(), and prformat().

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