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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "memtrack"
#include <android/hardware/memtrack/1.0/IMemtrack.h>
#include <memtrack/memtrack.h>
#include <errno.h>
#include <malloc.h>
#include <vector>
#include <string.h>
#include <mutex>
#include <log/log.h>
using android::hardware::memtrack::V1_0::IMemtrack;
using android::hardware::memtrack::V1_0::MemtrackType;
using android::hardware::memtrack::V1_0::MemtrackRecord;
using android::hardware::memtrack::V1_0::MemtrackFlag;
using android::hardware::memtrack::V1_0::MemtrackStatus;
using android::hardware::hidl_vec;
using android::hardware::Return;
struct memtrack_proc_type {
MemtrackType type;
std::vector<MemtrackRecord> records;
};
struct memtrack_proc {
pid_t pid;
memtrack_proc_type types[static_cast<int>(MemtrackType::NUM_TYPES)];
};
//TODO(b/31632518)
static android::sp<IMemtrack> get_instance() {
static android::sp<IMemtrack> module = IMemtrack::getService();
if (module == nullptr) {
ALOGE("Couldn't load memtrack module");
}
return module;
}
memtrack_proc *memtrack_proc_new(void)
{
return new memtrack_proc();
}
void memtrack_proc_destroy(memtrack_proc *p)
{
delete(p);
}
static int memtrack_proc_get_type(memtrack_proc_type *t,
pid_t pid, MemtrackType type)
{
int err = 0;
android::sp<IMemtrack> memtrack = get_instance();
if (memtrack == nullptr)
return -1;
Return<void> ret = memtrack->getMemory(pid, type,
[&t, &err](MemtrackStatus status, hidl_vec<MemtrackRecord> records) {
if (status != MemtrackStatus::SUCCESS) {
err = -1;
t->records.resize(0);
}
t->records.resize(records.size());
for (size_t i = 0; i < records.size(); i++) {
t->records[i].sizeInBytes = records[i].sizeInBytes;
t->records[i].flags = records[i].flags;
}
});
return ret.isOk() ? err : -1;
}
/* TODO: sanity checks on return values from HALs:
* make sure no records have invalid flags set
* - unknown flags
* - too many flags of a single category
* - missing ACCOUNTED/UNACCOUNTED
* make sure there are not overlapping SHARED and SHARED_PSS records
*/
static int memtrack_proc_sanity_check(memtrack_proc* /*p*/)
{
return 0;
}
int memtrack_proc_get(memtrack_proc *p, pid_t pid)
{
if (!p) {
return -EINVAL;
}
p->pid = pid;
for (uint32_t i = 0; i < (uint32_t)MemtrackType::NUM_TYPES; i++) {
int ret = memtrack_proc_get_type(&p->types[i], pid, (MemtrackType)i);
if (ret != 0)
return ret;
}
return memtrack_proc_sanity_check(p);
}
static ssize_t memtrack_proc_sum(memtrack_proc *p,
const std::vector<MemtrackType>& types, uint32_t flags)
{
ssize_t sum = 0;
for (size_t i = 0; i < types.size(); i++) {
memtrack_proc_type type = p->types[static_cast<int>(types[i])];
std::vector<MemtrackRecord> records = type.records;
for (size_t j = 0; j < records.size(); j++) {
if ((records[j].flags & flags) == flags) {
sum += records[j].sizeInBytes;
}
}
}
return sum;
}
ssize_t memtrack_proc_graphics_total(memtrack_proc *p)
{
std::vector<MemtrackType> types = {MemtrackType::GRAPHICS};
return memtrack_proc_sum(p, types, 0);
}
ssize_t memtrack_proc_graphics_pss(memtrack_proc *p)
{
std::vector<MemtrackType> types = { MemtrackType::GRAPHICS };
return memtrack_proc_sum(p, types,
(uint32_t)MemtrackFlag::SMAPS_UNACCOUNTED);
}
ssize_t memtrack_proc_gl_total(memtrack_proc *p)
{
std::vector<MemtrackType> types = { MemtrackType::GL };
return memtrack_proc_sum(p, types, 0);
}
ssize_t memtrack_proc_gl_pss(memtrack_proc *p)
{
std::vector<MemtrackType> types = { MemtrackType::GL };
return memtrack_proc_sum(p, types,
(uint32_t)MemtrackFlag::SMAPS_UNACCOUNTED);
}
ssize_t memtrack_proc_other_total(memtrack_proc *p)
{
std::vector<MemtrackType> types = { MemtrackType::MULTIMEDIA,
MemtrackType::CAMERA, MemtrackType::OTHER };
return memtrack_proc_sum(p, types, 0);
}
ssize_t memtrack_proc_other_pss(memtrack_proc *p)
{
std::vector<MemtrackType> types = { MemtrackType::MULTIMEDIA,
MemtrackType::CAMERA, MemtrackType::OTHER };
return memtrack_proc_sum(p, types,
(uint32_t)MemtrackFlag::SMAPS_UNACCOUNTED);
}
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