5e62b34c0d
Use <android-base/macros.h> instead where possible, and move the bionic macros out of the way of the libbase ones. Yes, there are folks who manage to end up with both included at once (thanks OpenGL!), and cleaning that up doesn't seem nearly as practical as just making this change. Bug: N/A Test: builds Change-Id: I23fc544f39d5addf81dc61471771a5438778895b
94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
/*
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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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#include "malloc_info.h"
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#include <errno.h>
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#include "private/bionic_macros.h"
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class __LIBC_HIDDEN__ Elem {
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public:
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// name must be valid throughout lifetime of the object.
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explicit Elem(FILE* fp, const char* name,
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const char* attr_fmt = nullptr, ...) {
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this->fp = fp;
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this->name = name;
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fprintf(fp, "<%s", name);
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if (attr_fmt != nullptr) {
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va_list args;
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va_start(args, attr_fmt);
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fputc(' ', fp);
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vfprintf(fp, attr_fmt, args);
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va_end(args);
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}
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fputc('>', fp);
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}
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~Elem() noexcept {
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fprintf(fp, "</%s>", name);
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}
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void contents(const char* fmt, ...) {
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va_list args;
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va_start(args, fmt);
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vfprintf(fp, fmt, args);
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va_end(args);
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}
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private:
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FILE* fp;
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const char* name;
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BIONIC_DISALLOW_IMPLICIT_CONSTRUCTORS(Elem);
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};
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int malloc_info(int options, FILE* fp) {
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if (options != 0) {
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errno = EINVAL;
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return -1;
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}
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Elem root(fp, "malloc", "version=\"jemalloc-1\"");
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// Dump all of the large allocations in the arenas.
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for (size_t i = 0; i < __mallinfo_narenas(); i++) {
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struct mallinfo mi = __mallinfo_arena_info(i);
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if (mi.hblkhd != 0) {
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Elem arena_elem(fp, "heap", "nr=\"%d\"", i);
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{
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Elem(fp, "allocated-large").contents("%zu", mi.ordblks);
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Elem(fp, "allocated-huge").contents("%zu", mi.uordblks);
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Elem(fp, "allocated-bins").contents("%zu", mi.fsmblks);
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size_t total = 0;
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for (size_t j = 0; j < __mallinfo_nbins(); j++) {
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struct mallinfo mi = __mallinfo_bin_info(i, j);
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if (mi.ordblks != 0) {
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Elem bin_elem(fp, "bin", "nr=\"%d\"", j);
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Elem(fp, "allocated").contents("%zu", mi.ordblks);
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Elem(fp, "nmalloc").contents("%zu", mi.uordblks);
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Elem(fp, "ndalloc").contents("%zu", mi.fordblks);
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total += mi.ordblks;
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}
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}
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Elem(fp, "bins-total").contents("%zu", total);
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}
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}
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}
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return 0;
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}
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