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/*
* 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.
*/
#include "src/trace_processor/sqlite/stats_table.h"
#include "src/trace_processor/sqlite/sqlite_utils.h"
namespace perfetto {
namespace trace_processor {
StatsTable::StatsTable(sqlite3*, const TraceStorage* storage)
: storage_(storage) {}
void StatsTable::RegisterTable(sqlite3* db, const TraceStorage* storage) {
SqliteTable::Register<StatsTable>(db, storage, "stats");
}
util::Status StatsTable::Init(int, const char* const*, Schema* schema) {
*schema = Schema(
{
SqliteTable::Column(Column::kName, "name", SqlValue::Type::kString),
// Calling a column "index" causes sqlite to silently fail, hence idx.
SqliteTable::Column(Column::kIndex, "idx", SqlValue::Type::kLong),
SqliteTable::Column(Column::kSeverity, "severity",
SqlValue::Type::kString),
SqliteTable::Column(Column::kSource, "source",
SqlValue::Type::kString),
SqliteTable::Column(Column::kValue, "value", SqlValue::Type::kLong),
},
{Column::kName});
return util::OkStatus();
}
std::unique_ptr<SqliteTable::Cursor> StatsTable::CreateCursor() {
return std::unique_ptr<SqliteTable::Cursor>(new Cursor(this));
}
int StatsTable::BestIndex(const QueryConstraints&, BestIndexInfo*) {
return SQLITE_OK;
}
StatsTable::Cursor::Cursor(StatsTable* table)
: SqliteTable::Cursor(table), table_(table), storage_(table->storage_) {}
int StatsTable::Cursor::Filter(const QueryConstraints&,
sqlite3_value**,
FilterHistory) {
*this = Cursor(table_);
return SQLITE_OK;
}
int StatsTable::Cursor::Column(sqlite3_context* ctx, int N) {
const auto kSqliteStatic = sqlite_utils::kSqliteStatic;
switch (N) {
case Column::kName:
sqlite3_result_text(ctx, stats::kNames[key_], -1, kSqliteStatic);
break;
case Column::kIndex:
if (stats::kTypes[key_] == stats::kIndexed) {
sqlite3_result_int(ctx, index_->first);
} else {
sqlite3_result_null(ctx);
}
break;
case Column::kSeverity:
switch (stats::kSeverities[key_]) {
case stats::kInfo:
sqlite3_result_text(ctx, "info", -1, kSqliteStatic);
break;
case stats::kDataLoss:
sqlite3_result_text(ctx, "data_loss", -1, kSqliteStatic);
break;
case stats::kError:
sqlite3_result_text(ctx, "error", -1, kSqliteStatic);
break;
}
break;
case Column::kSource:
switch (stats::kSources[key_]) {
case stats::kTrace:
sqlite3_result_text(ctx, "trace", -1, kSqliteStatic);
break;
case stats::kAnalysis:
sqlite3_result_text(ctx, "analysis", -1, kSqliteStatic);
break;
}
break;
case Column::kValue:
if (stats::kTypes[key_] == stats::kIndexed) {
sqlite3_result_int64(ctx, index_->second);
} else {
sqlite3_result_int64(ctx, storage_->stats()[key_].value);
}
break;
default:
PERFETTO_FATAL("Unknown column %d", N);
break;
}
return SQLITE_OK;
}
int StatsTable::Cursor::Next() {
static_assert(stats::kTypes[0] == stats::kSingle,
"the first stats entry cannot be indexed");
const auto* cur_entry = &storage_->stats()[key_];
if (stats::kTypes[key_] == stats::kIndexed) {
if (++index_ != cur_entry->indexed_values.end()) {
return SQLITE_OK;
}
}
while (++key_ < stats::kNumKeys) {
cur_entry = &storage_->stats()[key_];
index_ = cur_entry->indexed_values.begin();
if (stats::kTypes[key_] == stats::kSingle ||
!cur_entry->indexed_values.empty()) {
break;
}
}
return SQLITE_OK;
}
int StatsTable::Cursor::Eof() {
return key_ >= stats::kNumKeys;
}
} // namespace trace_processor
} // namespace perfetto
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