project-base/server-skynet-source-3rd-jemalloc
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Remove mb.h, which is unused

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David Goldblatt 2017-01-11 13:23:17 -08:00
parent 77de5f27d8
commit 94c5d22a4d
2 changed files with 0 additions and 119 deletions
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4
include/jemalloc/internal/jemalloc_internal.h.in
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@ -376,7 +376,6 @@ typedef unsigned szind_t;
#include "jemalloc/internal/witness.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/tsd.h"
#include "jemalloc/internal/mb.h"
#include "jemalloc/internal/extent.h"
#include "jemalloc/internal/base.h"
#include "jemalloc/internal/arena.h"
@ -405,7 +404,6 @@ typedef unsigned szind_t;
#include "jemalloc/internal/ctl.h"
#include "jemalloc/internal/witness.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/mb.h"
#include "jemalloc/internal/bitmap.h"
#define JEMALLOC_ARENA_STRUCTS_A
#include "jemalloc/internal/arena.h"
@ -497,7 +495,6 @@ void jemalloc_postfork_child(void);
#include "jemalloc/internal/ctl.h"
#include "jemalloc/internal/witness.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/mb.h"
#include "jemalloc/internal/bitmap.h"
#include "jemalloc/internal/extent.h"
#include "jemalloc/internal/base.h"
@ -528,7 +525,6 @@ void jemalloc_postfork_child(void);
#include "jemalloc/internal/tsd.h"
#include "jemalloc/internal/witness.h"
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/mb.h"
#include "jemalloc/internal/rtree.h"
#include "jemalloc/internal/extent.h"
#include "jemalloc/internal/base.h"

115
include/jemalloc/internal/mb.h
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@ -1,115 +0,0 @@
/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
void mb_write(void);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_MB_C_))
#ifdef __i386__
/*
* According to the Intel Architecture Software Developer's Manual, current
* processors execute instructions in order from the perspective of other
* processors in a multiprocessor system, but 1) Intel reserves the right to
* change that, and 2) the compiler's optimizer could re-order instructions if
* there weren't some form of barrier. Therefore, even if running on an
* architecture that does not need memory barriers (everything through at least
* i686), an "optimizer barrier" is necessary.
*/
JEMALLOC_INLINE void
mb_write(void)
{
# if 0
/* This is a true memory barrier. */
asm volatile ("pusha;"
"xor %%eax,%%eax;"
"cpuid;"
"popa;"
: /* Outputs. */
: /* Inputs. */
: "memory" /* Clobbers. */
);
# else
/*
* This is hopefully enough to keep the compiler from reordering
* instructions around this one.
*/
asm volatile ("nop;"
: /* Outputs. */
: /* Inputs. */
: "memory" /* Clobbers. */
);
# endif
}
#elif (defined(__amd64__) || defined(__x86_64__))
JEMALLOC_INLINE void
mb_write(void)
{
asm volatile ("sfence"
: /* Outputs. */
: /* Inputs. */
: "memory" /* Clobbers. */
);
}
#elif defined(__powerpc__)
JEMALLOC_INLINE void
mb_write(void)
{
asm volatile ("eieio"
: /* Outputs. */
: /* Inputs. */
: "memory" /* Clobbers. */
);
}
#elif defined(__sparc__) && defined(__arch64__)
JEMALLOC_INLINE void
mb_write(void)
{
asm volatile ("membar #StoreStore"
: /* Outputs. */
: /* Inputs. */
: "memory" /* Clobbers. */
);
}
#elif defined(__tile__)
JEMALLOC_INLINE void
mb_write(void)
{
__sync_synchronize();
}
#else
/*
* This is much slower than a simple memory barrier, but the semantics of mutex
* unlock make this work.
*/
JEMALLOC_INLINE void
mb_write(void)
{
malloc_mutex_t mtx;
malloc_mutex_init(&mtx, "mb", WITNESS_RANK_OMIT);
malloc_mutex_lock(TSDN_NULL, &mtx);
malloc_mutex_unlock(TSDN_NULL, &mtx);
}
#endif
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/