blob: dfd8705f83aa3e1e88e98ef0f6f5b0b577b42656 [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"
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;
}
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 STRING:
str_value = from.str_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 STRING:
return str_value + "[S]";
default:
return "[UNKNOWN]";
}
}
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 STRING:
return str_value == that.str_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 STRING:
return str_value != that.str_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 STRING:
return str_value < that.str_value;
default:
return false;
}
}
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;
}
} // namespace statsd
} // namespace os
} // namespace android