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jemalloc_types.h
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4  * Copyright (C) 2006-2008 Jason Evans <jasone@FreeBSD.org>.
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31 
32 #ifndef _JEMALLOC_TYPES_H_
33 #define _JEMALLOC_TYPES_H_
34 
35 /* grab size_t */
36 #ifdef _MSC_VER
37 #include <crtdefs.h>
38 #else
39 #include <stddef.h>
40 #endif
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46 typedef unsigned char jemalloc_bool;
47 
48 /*
49  * jemalloc_stats() is not a stable interface. When using jemalloc_stats_t, be
50  * sure that the compiled results of jemalloc.c are in sync with this header
51  * file.
52  */
53 typedef struct {
54  /*
55  * Run-time configuration settings.
56  */
57  jemalloc_bool opt_abort; /* abort(3) on error? */
58  jemalloc_bool opt_junk; /* Fill allocated/free memory with 0xa5/0x5a? */
59  jemalloc_bool opt_utrace; /* Trace all allocation events? */
60  jemalloc_bool opt_sysv; /* SysV semantics? */
61  jemalloc_bool opt_xmalloc; /* abort(3) on OOM? */
62  jemalloc_bool opt_zero; /* Fill allocated memory with 0x0? */
63  size_t narenas; /* Number of arenas. */
64  size_t balance_threshold; /* Arena contention rebalance threshold. */
65  size_t quantum; /* Allocation quantum. */
66  size_t small_max; /* Max quantum-spaced allocation size. */
67  size_t large_max; /* Max sub-chunksize allocation size. */
68  size_t chunksize; /* Size of each virtual memory mapping. */
69  size_t dirty_max; /* Max dirty pages per arena. */
70 
71  /*
72  * Current memory usage statistics.
73  */
74  size_t mapped; /* Bytes mapped (not necessarily committed). */
75  size_t committed; /* Bytes committed (readable/writable). */
76  size_t allocated; /* Bytes allocted (in use by application). */
77  size_t dirty; /* Bytes dirty (committed unused pages). */
79 
80 #ifdef __cplusplus
81 } /* extern "C" */
82 #endif
83 
84 #endif /* _JEMALLOC_TYPES_H_ */