mem.h File Reference

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Data Structures
struct	clib_mem_usage_t
struct	clib_mem_vm_alloc_t
struct	clib_mem_vm_map_t

Macros
#define	CLIB_MAX_MHEAPS   256
#define	clib_mem_alloc_aligned_no_fail(size, align)
#define	clib_mem_alloc_no_fail(size)   clib_mem_alloc_aligned_no_fail(size,1)
#define	clib_mem_alloc_stack(bytes)   __builtin_alloca(bytes)
#define	CLIB_MEM_VM_F_SHARED   (1 << 0)
#define	CLIB_MEM_VM_F_HUGETLB   (1 << 1)
#define	CLIB_MEM_VM_F_NUMA_PREFER   (1 << 2)
#define	CLIB_MEM_VM_F_NUMA_FORCE   (1 << 3)
#define	CLIB_MEM_VM_F_HUGETLB_PREALLOC   (1 << 4)
#define	CLIB_MEM_VM_F_LOCKED   (1 << 5)

Functions
static void	clib_mem_set_thread_index (void)
static void *	clib_mem_get_per_cpu_heap (void)
static void *	clib_mem_set_per_cpu_heap (u8 *new_heap)
static void *	clib_mem_alloc_aligned_at_offset (uword size, uword align, uword align_offset, int os_out_of_memory_on_failure)
static void *	clib_mem_alloc (uword size)
static void *	clib_mem_alloc_aligned (uword size, uword align)
static void *	clib_mem_alloc_or_null (uword size)
static void *	clib_mem_alloc_aligned_or_null (uword size, uword align)
static uword	clib_mem_is_heap_object (void *p)
static void	clib_mem_free (void *p)
static void *	clib_mem_realloc (void *p, uword new_size, uword old_size)
static uword	clib_mem_size (void *p)
static void *	clib_mem_get_heap (void)
static void *	clib_mem_set_heap (void *heap)
void *	clib_mem_init (void *heap, uword size)
void *	clib_mem_init_thread_safe (void *memory, uword memory_size)
void	clib_mem_exit (void)
uword	clib_mem_get_page_size (void)
void	clib_mem_validate (void)
void	clib_mem_trace (int enable)
int	clib_mem_is_traced (void)
void	clib_mem_usage (clib_mem_usage_t *usage)
u8 *	format_clib_mem_usage (u8 *s, va_list *args)
static void *	clib_mem_vm_alloc (uword size)
static void	clib_mem_vm_free (void *addr, uword size)
static void *	clib_mem_vm_unmap (void *addr, uword size)
static void *	clib_mem_vm_map (void *addr, uword size)
clib_error_t *	clib_mem_create_fd (char *name, int *fdp)
clib_error_t *	clib_mem_create_hugetlb_fd (char *name, int *fdp)
clib_error_t *	clib_mem_vm_ext_alloc (clib_mem_vm_alloc_t *a)
void	clib_mem_vm_ext_free (clib_mem_vm_alloc_t *a)
u64	clib_mem_get_fd_page_size (int fd)
uword	clib_mem_get_default_hugepage_size (void)
int	clib_mem_get_fd_log2_page_size (int fd)
u64 *	clib_mem_vm_get_paddr (void *mem, int log2_page_size, int n_pages)
clib_error_t *	clib_mem_vm_ext_map (clib_mem_vm_map_t *a)
void	clib_mem_vm_randomize_va (uword *requested_va, u32 log2_page_size)
void	mheap_trace (void *v, int enable)
uword	clib_mem_trace_enable_disable (uword enable)

Variables
void *	clib_per_cpu_mheaps [CLIB_MAX_MHEAPS]

Macro Definition Documentation

#define CLIB_MAX_MHEAPS   256

Definition at line 58 of file mem.h.

#define clib_mem_alloc_aligned_no_fail	(		size,
			align
	)

Value:

({                                                                              \
  uword _clib_mem_alloc_size = (size);                                          \
  void * _clib_mem_alloc_p;                                                     \
  _clib_mem_alloc_p = clib_mem_alloc_aligned (_clib_mem_alloc_size, (align));   \
  if (! _clib_mem_alloc_p)                                                      \
    clib_panic ("failed to allocate %d bytes", _clib_mem_alloc_size);           \
  _clib_mem_alloc_p;                                                            \
})

Definition at line 187 of file mem.h.

#define clib_mem_alloc_no_fail

(

size

)

clib_mem_alloc_aligned_no_fail(size,1)

Definition at line 197 of file mem.h.

#define clib_mem_alloc_stack

(

bytes

)

__builtin_alloca(bytes)

Definition at line 200 of file mem.h.

#define CLIB_MEM_VM_F_HUGETLB   (1 << 1)

Definition at line 386 of file mem.h.

#define CLIB_MEM_VM_F_HUGETLB_PREALLOC   (1 << 4)

Definition at line 389 of file mem.h.

#define CLIB_MEM_VM_F_LOCKED   (1 << 5)

Definition at line 390 of file mem.h.

#define CLIB_MEM_VM_F_NUMA_FORCE   (1 << 3)

Definition at line 388 of file mem.h.

#define CLIB_MEM_VM_F_NUMA_PREFER   (1 << 2)

Definition at line 387 of file mem.h.

#define CLIB_MEM_VM_F_SHARED   (1 << 0)

Definition at line 385 of file mem.h.

Function Documentation

static void* clib_mem_alloc ( uword  size )

inlinestatic

Definition at line 153 of file mem.h.

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static void* clib_mem_alloc_aligned ( uword  size, uword  align  )

inlinestatic

Definition at line 161 of file mem.h.

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static void* clib_mem_alloc_aligned_at_offset ( uword  size, uword  align, uword  align_offset, int  os_out_of_memory_on_failure  )

inlinestatic

Definition at line 102 of file mem.h.

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static void* clib_mem_alloc_aligned_or_null ( uword  size, uword  align  )

inlinestatic

Definition at line 177 of file mem.h.

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static void* clib_mem_alloc_or_null ( uword  size )

inlinestatic

Definition at line 169 of file mem.h.

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clib_error_t* clib_mem_create_fd	(	char *	name,
		int *	fdp
	)

Definition at line 126 of file mem.c.

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clib_error_t* clib_mem_create_hugetlb_fd	(	char *	name,
		int *	fdp
	)

Definition at line 146 of file mem.c.

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void clib_mem_exit

(

void

)

Definition at line 49 of file mem_mheap.c.

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static void clib_mem_free ( void *  p )

inlinestatic

Definition at line 226 of file mem.h.

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uword clib_mem_get_default_hugepage_size

(

void

)

Definition at line 57 of file mem.c.

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int clib_mem_get_fd_log2_page_size

(

int

fd

)

Definition at line 100 of file mem.c.

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u64 clib_mem_get_fd_page_size

(

int

fd

)

Definition at line 91 of file mem.c.

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static void* clib_mem_get_heap ( void  )

inlinestatic

Definition at line 276 of file mem.h.

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uword clib_mem_get_page_size

(

void

)

Definition at line 51 of file mem.c.

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static void* clib_mem_get_per_cpu_heap ( void  )

inlinestatic

Definition at line 85 of file mem.h.

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void* clib_mem_init	(	void *	heap,
		uword	size
	)

Definition at line 205 of file mem_dlmalloc.c.

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void* clib_mem_init_thread_safe	(	void *	memory,
		uword	memory_size
	)

Definition at line 226 of file mem_dlmalloc.c.

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static uword clib_mem_is_heap_object ( void *  p )

inlinestatic

Definition at line 203 of file mem.h.

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int clib_mem_is_traced

(

void

)

Definition at line 435 of file mem_dlmalloc.c.

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static void* clib_mem_realloc ( void *  p, uword  new_size, uword  old_size  )

inlinestatic

Definition at line 245 of file mem.h.

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static void* clib_mem_set_heap ( void *  heap )

inlinestatic

Definition at line 282 of file mem.h.

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static void* clib_mem_set_per_cpu_heap ( u8 *  new_heap )

inlinestatic

Definition at line 92 of file mem.h.

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static void clib_mem_set_thread_index ( void  )

inlinestatic

Definition at line 64 of file mem.h.

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static uword clib_mem_size ( void *  p )

inlinestatic

Definition at line 263 of file mem.h.

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void clib_mem_trace

(

int

enable

)

Definition at line 420 of file mem_dlmalloc.c.

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uword clib_mem_trace_enable_disable

(

uword

enable

)

Definition at line 441 of file mem_dlmalloc.c.

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void clib_mem_usage

(

clib_mem_usage_t *

usage

)

Definition at line 381 of file mem_dlmalloc.c.

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void clib_mem_validate

(

void

)

Definition at line 405 of file mem_dlmalloc.c.

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static void* clib_mem_vm_alloc ( uword  size )

inlinestatic

Definition at line 331 of file mem.h.

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clib_error_t* clib_mem_vm_ext_alloc

(

clib_mem_vm_alloc_t *

a

)

Definition at line 193 of file mem.c.

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void clib_mem_vm_ext_free

(

clib_mem_vm_alloc_t *

a

)

Definition at line 336 of file mem.c.

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clib_error_t* clib_mem_vm_ext_map

(

clib_mem_vm_map_t *

a

)

Definition at line 386 of file mem.c.

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static void clib_mem_vm_free ( void *  addr, uword  size  )

inlinestatic

Definition at line 348 of file mem.h.

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u64* clib_mem_vm_get_paddr	(	void *	mem,
		int	log2_page_size,
		int	n_pages
	)

Definition at line 347 of file mem.c.

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static void* clib_mem_vm_map ( void *  addr, uword  size  )

inlinestatic

Definition at line 371 of file mem.h.

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void clib_mem_vm_randomize_va	(	uword *	requested_va,
		u32	log2_page_size
	)

Definition at line 106 of file mem.c.

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static void* clib_mem_vm_unmap ( void *  addr, uword  size  )

inlinestatic

Definition at line 354 of file mem.h.

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u8* format_clib_mem_usage	(	u8 *	s,
		va_list *	args
	)

Definition at line 232 of file mem_dlmalloc.c.

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void mheap_trace	(	void *	v,
		int	enable
	)

Definition at line 411 of file mem_dlmalloc.c.

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Variable Documentation

void* clib_per_cpu_mheaps[CLIB_MAX_MHEAPS]

Definition at line 23 of file mem_dlmalloc.c.