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61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Types.h"
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#include "jemalloc_types.h"
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#if defined(MOZ_NATIVE_JEMALLOC)
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#define wrap(a) a
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#else
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#define wrap(a) je_ ## a
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#endif
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/*
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* CTL_* macros are from memory/jemalloc/src/src/stats.c with changes:
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* - drop `t' argument to avoid redundancy in calculating type size
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* - require `i' argument for arena number explicitly
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*/
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#define CTL_GET(n, v) do { \
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size_t sz = sizeof(v); \
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wrap(mallctl)(n, &v, &sz, NULL, 0); \
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} while (0)
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#define CTL_I_GET(n, v, i) do { \
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size_t mib[6]; \
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size_t miblen = sizeof(mib) / sizeof(mib[0]); \
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size_t sz = sizeof(v); \
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wrap(mallctlnametomib)(n, mib, &miblen); \
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mib[2] = i; \
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wrap(mallctlbymib)(mib, miblen, &v, &sz, NULL, 0); \
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} while (0)
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MOZ_IMPORT_API int
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wrap(mallctl)(const char*, void*, size_t*, void*, size_t);
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MOZ_IMPORT_API int
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wrap(mallctlnametomib)(const char *name, size_t *mibp, size_t *miblenp);
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MOZ_IMPORT_API int
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wrap(mallctlbymib)(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen);
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MOZ_EXPORT void
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jemalloc_stats(jemalloc_stats_t *stats)
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{
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unsigned narenas;
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size_t active, allocated, mapped, page, pdirty;
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CTL_GET("arenas.narenas", narenas);
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CTL_GET("arenas.page", page);
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CTL_GET("stats.active", active);
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CTL_GET("stats.allocated", allocated);
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CTL_GET("stats.mapped", mapped);
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/* get the summation for all arenas, i == narenas */
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CTL_I_GET("stats.arenas.0.pdirty", pdirty, narenas);
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stats->allocated = allocated;
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stats->mapped = mapped;
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stats->dirty = pdirty * page;
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stats->committed = active + stats->dirty;
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}
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