blob: 13f5c8ae5fd8a0a2da2a8d456c2e57d5447b023f [file] [log] [blame]
/*
* Copyright (C) 2018 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 DEBUG false
#include "Log.h"
#include "FieldValue.h"
#include "HashableDimensionKey.h"
#include "math.h"
#include "statslog.h"
namespace android {
namespace os {
namespace statsd {
int32_t getEncodedField(int32_t pos[], int32_t depth, bool includeDepth) {
int32_t field = 0;
for (int32_t i = 0; i <= depth; i++) {
int32_t shiftBits = 8 * (kMaxLogDepth - i);
field |= (pos[i] << shiftBits);
}
if (includeDepth) {
field |= (depth << 24);
}
return field;
}
int32_t encodeMatcherMask(int32_t mask[], int32_t depth) {
return getEncodedField(mask, depth, false) | 0xff000000;
}
bool Field::matches(const Matcher& matcher) const {
if (mTag != matcher.mMatcher.getTag()) {
return false;
}
if ((mField & matcher.mMask) == matcher.mMatcher.getField()) {
return true;
}
if (matcher.hasAllPositionMatcher() &&
(mField & (matcher.mMask & kClearAllPositionMatcherMask)) == matcher.mMatcher.getField()) {
return true;
}
return false;
}
void translateFieldMatcher(int tag, const FieldMatcher& matcher, int depth, int* pos, int* mask,
std::vector<Matcher>* output) {
if (depth > kMaxLogDepth) {
ALOGE("depth > 2");
return;
}
pos[depth] = matcher.field();
mask[depth] = 0x7f;
if (matcher.has_position()) {
depth++;
if (depth > 2) {
return;
}
switch (matcher.position()) {
case Position::ALL:
pos[depth] = 0x00;
mask[depth] = 0x7f;
break;
case Position::ANY:
pos[depth] = 0;
mask[depth] = 0;
break;
case Position::FIRST:
pos[depth] = 1;
mask[depth] = 0x7f;
break;
case Position::LAST:
pos[depth] = 0x80;
mask[depth] = 0x80;
break;
case Position::POSITION_UNKNOWN:
pos[depth] = 0;
mask[depth] = 0;
break;
}
}
if (matcher.child_size() == 0) {
output->push_back(Matcher(Field(tag, pos, depth), encodeMatcherMask(mask, depth)));
} else {
for (const auto& child : matcher.child()) {
translateFieldMatcher(tag, child, depth + 1, pos, mask, output);
}
}
}
void translateFieldMatcher(const FieldMatcher& matcher, std::vector<Matcher>* output) {
int pos[] = {1, 1, 1};
int mask[] = {0x7f, 0x7f, 0x7f};
int tag = matcher.field();
for (const auto& child : matcher.child()) {
translateFieldMatcher(tag, child, 0, pos, mask, output);
}
}
bool isAttributionUidField(const FieldValue& value) {
int field = value.mField.getField() & 0xff007f;
if (field == 0x10001 && value.mValue.getType() == INT) {
return true;
}
return false;
}
int32_t getUidIfExists(const FieldValue& value) {
bool isUid = false;
// the field is uid field if the field is the uid field in attribution node or marked as
// is_uid in atoms.proto
if (isAttributionUidField(value)) {
isUid = true;
} else {
auto it = android::util::AtomsInfo::kAtomsWithUidField.find(value.mField.getTag());
if (it != android::util::AtomsInfo::kAtomsWithUidField.end()) {
int uidField = it->second; // uidField is the field number in proto
isUid = value.mField.getDepth() == 0 && value.mField.getPosAtDepth(0) == uidField &&
value.mValue.getType() == INT;
}
}
return isUid ? value.mValue.int_value : -1;
}
bool isAttributionUidField(const Field& field, const Value& value) {
int f = field.getField() & 0xff007f;
if (f == 0x10001 && value.getType() == INT) {
return true;
}
return false;
}
Value::Value(const Value& from) {
type = from.getType();
switch (type) {
case INT:
int_value = from.int_value;
break;
case LONG:
long_value = from.long_value;
break;
case FLOAT:
float_value = from.float_value;
break;
case DOUBLE:
double_value = from.double_value;
break;
case STRING:
str_value = from.str_value;
break;
case STORAGE:
storage_value = from.storage_value;
break;
default:
break;
}
}
std::string Value::toString() const {
switch (type) {
case INT:
return std::to_string(int_value) + "[I]";
case LONG:
return std::to_string(long_value) + "[L]";
case FLOAT:
return std::to_string(float_value) + "[F]";
case DOUBLE:
return std::to_string(double_value) + "[D]";
case STRING:
return str_value + "[S]";
case STORAGE:
return "bytes of size " + std::to_string(storage_value.size()) + "[ST]";
default:
return "[UNKNOWN]";
}
}
bool Value::isZero() const {
switch (type) {
case INT:
return int_value == 0;
case LONG:
return long_value == 0;
case FLOAT:
return fabs(float_value) <= std::numeric_limits<float>::epsilon();
case DOUBLE:
return fabs(double_value) <= std::numeric_limits<double>::epsilon();
case STRING:
return str_value.size() == 0;
case STORAGE:
return storage_value.size() == 0;
default:
return false;
}
}
bool Value::operator==(const Value& that) const {
if (type != that.getType()) return false;
switch (type) {
case INT:
return int_value == that.int_value;
case LONG:
return long_value == that.long_value;
case FLOAT:
return float_value == that.float_value;
case DOUBLE:
return double_value == that.double_value;
case STRING:
return str_value == that.str_value;
case STORAGE:
return storage_value == that.storage_value;
default:
return false;
}
}
bool Value::operator!=(const Value& that) const {
if (type != that.getType()) return true;
switch (type) {
case INT:
return int_value != that.int_value;
case LONG:
return long_value != that.long_value;
case FLOAT:
return float_value != that.float_value;
case DOUBLE:
return double_value != that.double_value;
case STRING:
return str_value != that.str_value;
case STORAGE:
return storage_value != that.storage_value;
default:
return false;
}
}
bool Value::operator<(const Value& that) const {
if (type != that.getType()) return type < that.getType();
switch (type) {
case INT:
return int_value < that.int_value;
case LONG:
return long_value < that.long_value;
case FLOAT:
return float_value < that.float_value;
case DOUBLE:
return double_value < that.double_value;
case STRING:
return str_value < that.str_value;
case STORAGE:
return storage_value < that.storage_value;
default:
return false;
}
}
bool Value::operator>(const Value& that) const {
if (type != that.getType()) return type > that.getType();
switch (type) {
case INT:
return int_value > that.int_value;
case LONG:
return long_value > that.long_value;
case FLOAT:
return float_value > that.float_value;
case DOUBLE:
return double_value > that.double_value;
case STRING:
return str_value > that.str_value;
case STORAGE:
return storage_value > that.storage_value;
default:
return false;
}
}
bool Value::operator>=(const Value& that) const {
if (type != that.getType()) return type >= that.getType();
switch (type) {
case INT:
return int_value >= that.int_value;
case LONG:
return long_value >= that.long_value;
case FLOAT:
return float_value >= that.float_value;
case DOUBLE:
return double_value >= that.double_value;
case STRING:
return str_value >= that.str_value;
case STORAGE:
return storage_value >= that.storage_value;
default:
return false;
}
}
Value Value::operator-(const Value& that) const {
Value v;
if (type != that.type) {
ALOGE("Can't operate on different value types, %d, %d", type, that.type);
return v;
}
if (type == STRING) {
ALOGE("Can't operate on string value type");
return v;
}
if (type == STORAGE) {
ALOGE("Can't operate on storage value type");
return v;
}
switch (type) {
case INT:
v.setInt(int_value - that.int_value);
break;
case LONG:
v.setLong(long_value - that.long_value);
break;
case FLOAT:
v.setFloat(float_value - that.float_value);
break;
case DOUBLE:
v.setDouble(double_value - that.double_value);
break;
default:
break;
}
return v;
}
Value& Value::operator=(const Value& that) {
type = that.type;
switch (type) {
case INT:
int_value = that.int_value;
break;
case LONG:
long_value = that.long_value;
break;
case FLOAT:
float_value = that.float_value;
break;
case DOUBLE:
double_value = that.double_value;
break;
case STRING:
str_value = that.str_value;
break;
case STORAGE:
storage_value = that.storage_value;
break;
default:
break;
}
return *this;
}
Value& Value::operator+=(const Value& that) {
if (type != that.type) {
ALOGE("Can't operate on different value types, %d, %d", type, that.type);
return *this;
}
if (type == STRING) {
ALOGE("Can't operate on string value type");
return *this;
}
if (type == STORAGE) {
ALOGE("Can't operate on storage value type");
return *this;
}
switch (type) {
case INT:
int_value += that.int_value;
break;
case LONG:
long_value += that.long_value;
break;
case FLOAT:
float_value += that.float_value;
break;
case DOUBLE:
double_value += that.double_value;
break;
default:
break;
}
return *this;
}
double Value::getDouble() const {
switch (type) {
case INT:
return int_value;
case LONG:
return long_value;
case FLOAT:
return float_value;
case DOUBLE:
return double_value;
default:
return 0;
}
}
bool equalDimensions(const std::vector<Matcher>& dimension_a,
const std::vector<Matcher>& dimension_b) {
bool eq = dimension_a.size() == dimension_b.size();
for (size_t i = 0; eq && i < dimension_a.size(); ++i) {
if (dimension_b[i] != dimension_a[i]) {
eq = false;
}
}
return eq;
}
bool HasPositionANY(const FieldMatcher& matcher) {
if (matcher.has_position() && matcher.position() == Position::ANY) {
return true;
}
for (const auto& child : matcher.child()) {
if (HasPositionANY(child)) {
return true;
}
}
return false;
}
bool HasPositionALL(const FieldMatcher& matcher) {
if (matcher.has_position() && matcher.position() == Position::ALL) {
return true;
}
for (const auto& child : matcher.child()) {
if (HasPositionALL(child)) {
return true;
}
}
return false;
}
} // namespace statsd
} // namespace os
} // namespace android