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Add MALLCTL_ARENAS_ALL.

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Add the MALLCTL_ARENAS_ALL cpp macro as a fixed index for use
in accessing the arena.<i>.{purge,decay,dss} and stats.arenas.<i>.*
mallctls, and deprecate access via the arenas.narenas index (to be
removed in 6.0.0).
This commit is contained in:
Jason Evans 2017-01-03 07:27:42 -08:00
parent 027ace8519
commit 3dc4e83ccb
6 changed files with 171 additions and 92 deletions
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4
include/jemalloc/internal/util.h
View file

@ -54,6 +54,10 @@
*/
#define JEMALLOC_ARG_CONCAT(...) __VA_ARGS__
/* cpp macro definition stringification. */
#define STRINGIFY_HELPER(x) #x
#define STRINGIFY(x) STRINGIFY_HELPER(x)
/*
* Silence compiler warnings due to uninitialized values. This is used
* wherever the compiler fails to recognize that the variable is never used

14
include/jemalloc/jemalloc_macros.h.in
View file

@ -31,6 +31,20 @@
*/
#define MALLOCX_ARENA(a) ((((int)(a))+1) << 20)
/*
* Use as arena index in "arena.<i>.{purge,decay,dss}" and
* "stats.arenas.<i>.*" mallctl interfaces to select all arenas. This
* definition is intentionally specified in raw decimal format to support
* cpp-based string concatenation, e.g.
*
* #define STRINGIFY_HELPER(x) #x
* #define STRINGIFY(x) STRINGIFY_HELPER(x)
*
* mallctl("arena." STRINGIFY(MALLCTL_ARENAS_ALL) ".purge", NULL, NULL, NULL,
* 0);
*/
#define MALLCTL_ARENAS_ALL 4096
#if defined(__cplusplus) && defined(JEMALLOC_USE_CXX_THROW)
# define JEMALLOC_CXX_THROW throw()
#else