/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* This is an implementation that uses the same arena access pattern found
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* in the arena_stats_merge function from src/arena.c.
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*/
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struct mallinfo je_mallinfo() {
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struct mallinfo mi;
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memset(&mi, 0, sizeof(mi));
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malloc_mutex_lock(TSDN_NULL, &arenas_lock);
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for (unsigned i = 0; i < narenas_auto; i++) {
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if (arenas[i] != NULL) {
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malloc_mutex_lock(TSDN_NULL, &arenas[i]->lock);
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mi.hblkhd += arenas[i]->stats.mapped;
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mi.uordblks += arenas[i]->stats.allocated_large;
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mi.uordblks += arenas[i]->stats.allocated_huge;
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malloc_mutex_unlock(TSDN_NULL, &arenas[i]->lock);
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for (unsigned j = 0; j < NBINS; j++) {
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arena_bin_t* bin = &arenas[i]->bins[j];
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malloc_mutex_lock(TSDN_NULL, &bin->lock);
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mi.uordblks += arena_bin_info[j].reg_size * bin->stats.curregs;
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malloc_mutex_unlock(TSDN_NULL, &bin->lock);
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}
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}
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}
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malloc_mutex_unlock(TSDN_NULL, &arenas_lock);
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mi.fordblks = mi.hblkhd - mi.uordblks;
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mi.usmblks = mi.hblkhd;
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return mi;
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}
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size_t __mallinfo_narenas() {
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return narenas_auto;
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}
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size_t __mallinfo_nbins() {
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return NBINS;
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}
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struct mallinfo __mallinfo_arena_info(size_t aidx) {
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struct mallinfo mi;
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memset(&mi, 0, sizeof(mi));
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malloc_mutex_lock(TSDN_NULL, &arenas_lock);
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if (aidx < narenas_auto) {
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if (arenas[aidx] != NULL) {
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malloc_mutex_lock(TSDN_NULL, &arenas[aidx]->lock);
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mi.hblkhd = arenas[aidx]->stats.mapped;
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mi.ordblks = arenas[aidx]->stats.allocated_large;
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mi.uordblks = arenas[aidx]->stats.allocated_huge;
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malloc_mutex_unlock(TSDN_NULL, &arenas[aidx]->lock);
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for (unsigned j = 0; j < NBINS; j++) {
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arena_bin_t* bin = &arenas[aidx]->bins[j];
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malloc_mutex_lock(TSDN_NULL, &bin->lock);
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mi.fsmblks += arena_bin_info[j].reg_size * bin->stats.curregs;
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malloc_mutex_unlock(TSDN_NULL, &bin->lock);
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}
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}
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}
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malloc_mutex_unlock(TSDN_NULL, &arenas_lock);
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return mi;
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}
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struct mallinfo __mallinfo_bin_info(size_t aidx, size_t bidx) {
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struct mallinfo mi;
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memset(&mi, 0, sizeof(mi));
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malloc_mutex_lock(TSDN_NULL, &arenas_lock);
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if (aidx < narenas_auto && bidx < NBINS) {
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if (arenas[aidx] != NULL) {
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arena_bin_t* bin = &arenas[aidx]->bins[bidx];
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malloc_mutex_lock(TSDN_NULL, &bin->lock);
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mi.ordblks = arena_bin_info[bidx].reg_size * bin->stats.curregs;
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mi.uordblks = bin->stats.nmalloc;
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mi.fordblks = bin->stats.ndalloc;
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malloc_mutex_unlock(TSDN_NULL, &bin->lock);
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}
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}
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malloc_mutex_unlock(TSDN_NULL, &arenas_lock);
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return mi;
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}
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