FD.io VPP  v16.06
Vector Packet Processing
mheap.h
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1 /*
2  * Copyright (c) 2015 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
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7  * http://www.apache.org/licenses/LICENSE-2.0
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12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 /*
16  Copyright (c) 2001, 2002, 2003 Eliot Dresselhaus
17 
18  Permission is hereby granted, free of charge, to any person obtaining
19  a copy of this software and associated documentation files (the
20  "Software"), to deal in the Software without restriction, including
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23  permit persons to whom the Software is furnished to do so, subject to
24  the following conditions:
25 
26  The above copyright notice and this permission notice shall be
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28 
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36 */
37 
38 #ifndef included_mheap_h
39 #define included_mheap_h
40 
41 #include <vppinfra/vec.h>
42 #include <vppinfra/error.h> /* clib_error_t */
43 #include <vppinfra/mem.h> /* clib_mem_usage_t */
44 #include <vppinfra/format.h> /* for unformat_input_t */
45 
46 /* Allocate size bytes. New heap and offset are returned.
47  offset == ~0 means allocation failed. */
48 always_inline void * mheap_get (void * v, uword size, uword * offset_return)
49 { return mheap_get_aligned (v, size, 0, 0, offset_return); }
50 
51 /* Create allocation heap of given size. */
52 void * mheap_alloc (void * memory, uword memory_bytes);
53 void * mheap_alloc_with_flags (void * memory, uword memory_bytes, uword flags);
54 
55 #define mheap_free(v) (v) = _mheap_free(v)
56 void * _mheap_free (void * v);
57 
58 void mheap_foreach (void * v,
59  uword (* func) (void * arg, void * v, void * elt_data, uword elt_size),
60  void * arg);
61 
62 /* Format mheap data structures as string. */
63 u8 * format_mheap (u8 * s, va_list * va);
64 
65 /* Validate internal consistency. */
66 void mheap_validate (void * h);
67 
68 /* Query bytes used. */
69 uword mheap_bytes (void * v);
70 
71 void mheap_usage (void * v, clib_mem_usage_t * usage);
72 
73 /* Enable disable traceing. */
74 void mheap_trace (void * v, int enable);
75 
76 /* Test routine. */
77 int test_mheap_main (unformat_input_t * input);
78 
79 #endif /* included_mheap_h */
static void usage(void)
Definition: health_check.c:14
void * mheap_alloc(void *memory, uword memory_bytes)
Definition: mheap.c:908
vhost_user_memory_t memory
Definition: vhost-user.h:79
void mheap_validate(void *h)
Definition: mheap.c:1281
#define always_inline
Definition: clib.h:84
void * mheap_alloc_with_flags(void *memory, uword memory_bytes, uword flags)
Definition: mheap.c:842
void mheap_foreach(void *v, uword(*func)(void *arg, void *v, void *elt_data, uword elt_size), void *arg)
Definition: mheap.c:933
uword mheap_bytes(void *v)
Definition: mheap.c:988
void * mheap_get_aligned(void *v, uword n_user_data_bytes, uword align, uword align_offset, uword *offset_return)
Definition: mheap.c:621
u8 * format_mheap(u8 *s, va_list *va)
Definition: mheap.c:1113
u32 size
Definition: vhost-user.h:74
int test_mheap_main(unformat_input_t *input)
always_inline u32 * elt_data(void *v, heap_elt_t *e)
Definition: heap.c:199
void mheap_usage(void *v, clib_mem_usage_t *usage)
Definition: mheap.c:1026
u64 uword
Definition: types.h:112
unsigned char u8
Definition: types.h:56
void mheap_trace(void *v, int enable)
Definition: mheap.c:1549
struct _unformat_input_t unformat_input_t
u32 flags
Definition: vhost-user.h:73
always_inline void * mheap_get(void *v, uword size, uword *offset_return)
Definition: mheap.h:48
CLIB vectors are ubiquitous dynamically resized arrays with by user defined "headers".