xmalloc.h File Reference

#include <stdlib.h>
#include <sys/mman.h>

Macros
#define	FNATTR_MALLOC
#define	xfree(p)
	Self-checking wrapper to free()

Functions
void *	xmalloc (size_t) FNATTR_MALLOC
	Self-checking wrapper to malloc()
void *	xcalloc (size_t, size_t) FNATTR_MALLOC
	Self-checking wrapper to calloc()
void *	xrealloc (void *, size_t) FNATTR_MALLOC
	Self-checking wrapper to realloc()
void *	xmmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset)
	Self-checking wrapper to mmap()
void	xelemset (int64_t *s, int64_t c, int64_t n)
	Initialize all elements of an array.
void	xelemcpy (int64_t *dest, int64_t *src, int64_t n)
	Copy from one array to another.
void	xzero (void *x, const size_t sz)
	Write zeros to sz bytes starting at x.

Macro Definition Documentation

#define FNATTR_MALLOC

#define xfree

(

p

)

Value:

{ \
  if (p != NULL) { \
    free(p); \
    p = NULL; \
  } \
}

Self-checking wrapper to free()

Parameters

p	Pointer to allocation

Function Documentation

void* xcalloc	(	size_t	nelem,
		size_t	sz
	)

Self-checking wrapper to calloc()

Parameters

nelem	Number of elements
sz	Size of each element

Returns

Referenced by stinger_new(), stinger_open_from_file(), stinger_save_to_file(), stinger_set_initial_edges(), and stinger_to_unsorted_csr().

void xelemcpy	(	int64_t *	dest,
		int64_t *	src,
		int64_t	num
	)

Copy from one array to another.

Parameters

dest	Output array
src	Input array
num	Number of elements to copy

Referenced by stinger_iterator_edge_type_filter(), stinger_iterator_vertex_filter(), and stinger_iterator_vertex_type_filter().

void xelemset	(	int64_t *	s,
		int64_t	c,
		int64_t	num
	)

Initialize all elements of an array.

Parameters

s	Array to initialize
c	Value to set
num	Number of elements in the array

void* xmalloc

(

size_t

sz

)

Self-checking wrapper to malloc()

Parameters

sz	Number of bytes to allocate

Returns

Referenced by bucket_sort_pairs(), counting_sort(), edge_list_to_stinger(), radix_sort_pairs(), snarf_actions(), snarf_graph(), stinger_iterator_edge_type_filter(), stinger_iterator_new(), stinger_iterator_vertex_filter(), stinger_iterator_vertex_type_filter(), stinger_new(), stinger_open_from_file(), stinger_remove_and_insert_batch(), stinger_save_to_file(), stinger_sort_actions(), stinger_to_sorted_csr(), and stinger_to_unsorted_csr().

void* xmmap	(	void *	addr,
		size_t	len,
		int	prot,
		int	flags,
		int	fd,
		off_t	offset
	)

Self-checking wrapper to mmap()

Parameters

addr	Starting address for new mapping
len	Length of the mapping
prot	Memory protection of the mapping
flags	MAP_SHARED or MAP_PRIVATE, plus other flags
fd	File descriptor
offset	Offset

Returns

void* xrealloc	(	void *	p,
		size_t	sz
	)

Self-checking wrapper to realloc()

Parameters

p	Pointer to current allocation
sz	Number of bytes of new allocation

Returns

void xzero	(	void *	x,
		const size_t	sz
	)

Write zeros to sz bytes starting at x.

Parameters

x	Pointer to memory location
sz	Memory size in bytes

References MTASTREAMS.

Referenced by new_ebs().