mirror of
https://github.com/ohwgiles/laminar.git
synced 2024-09-28 14:30:45 +00:00
010af57ed4
- regressions and recoveries: list of jobs whose run status changed, ordered first by currently failing jobs, secondly by count of jobs since the status change, descending for currently failing jobs and ascending for currently passing jobs - low pass rates: list of the jobs with the worst pass rates calculated over all time - run time changes: jobs with the largest changes in build time. This is calculated as the difference between the range and the standard deviation over the past 10 runs. - average run time distribution: shows the number of jobs in the system divided into buckets based on their average runtime
135 lines
4.0 KiB
C++
135 lines
4.0 KiB
C++
///
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/// Copyright 2015-2018 Oliver Giles
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///
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/// This file is part of Laminar
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///
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/// Laminar is free software: you can redistribute it and/or modify
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/// it under the terms of the GNU General Public License as published by
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/// the Free Software Foundation, either version 3 of the License, or
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/// (at your option) any later version.
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///
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/// Laminar is distributed in the hope that it will be useful,
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/// but WITHOUT ANY WARRANTY; without even the implied warranty of
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/// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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/// GNU General Public License for more details.
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///
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/// You should have received a copy of the GNU General Public License
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/// along with Laminar. If not, see <http://www.gnu.org/licenses/>
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///
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#include "database.h"
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#include <sqlite3.h>
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#include <string.h>
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#include <math.h>
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struct StdevCtx {
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double mean;
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double M2;
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int64_t count;
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};
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static void stdevStep(sqlite3_context *ctx, int, sqlite3_value **args)
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{
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StdevCtx* p = static_cast<StdevCtx*>(sqlite3_aggregate_context(ctx, sizeof(StdevCtx)));
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// Welford's Online Algorithm
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if(sqlite3_value_numeric_type(args[0]) != SQLITE_NULL) {
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p->count++;
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double val = sqlite3_value_double(args[0]);
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double delta = val - p->mean;
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p->mean += delta / p->count;
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p->M2 += delta * (val - p->mean);
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}
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}
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static void stdevFinalize(sqlite3_context *context){
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StdevCtx* p = static_cast<StdevCtx*>(sqlite3_aggregate_context(context, 0));
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if(p && p->count > 1)
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sqlite3_result_double(context, sqrt(p->M2 / (p->count-1)));
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else
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sqlite3_result_null(context);
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}
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Database::Database(const char *path) {
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sqlite3_open(path, &hdl);
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sqlite3_create_function(hdl, "STDEV", 1, SQLITE_UTF8|SQLITE_DETERMINISTIC, NULL, NULL, stdevStep, stdevFinalize);
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}
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Database::~Database() {
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sqlite3_close(hdl);
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}
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Database::Statement::Statement(sqlite3 *db, const char *query) :
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stmt(nullptr)
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{
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sqlite3_prepare_v2(db, query, -1, &stmt, nullptr);
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}
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Database::Statement::~Statement() {
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sqlite3_finalize(stmt);
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}
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bool Database::Statement::exec() {
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return sqlite3_step(stmt) == SQLITE_DONE;
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}
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void Database::Statement::bindValue(int i, int e) {
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sqlite3_bind_int(stmt, i, e);
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}
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void Database::Statement::bindValue(int i, uint e) {
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sqlite3_bind_int(stmt, i, static_cast<int32_t>(e));
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}
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void Database::Statement::bindValue(int i, long e) {
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sqlite3_bind_int64(stmt, i, e);
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}
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void Database::Statement::bindValue(int i, ulong e) {
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sqlite3_bind_int64(stmt, i, static_cast<int64_t>(e));
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}
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void Database::Statement::bindValue(int i, const char* e) {
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sqlite3_bind_text(stmt, i, e, -1, nullptr);
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}
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void Database::Statement::bindValue(int i, const std::string& e) {
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sqlite3_bind_text(stmt, i, e.data(), static_cast<int>(e.size()), nullptr);
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}
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template<> std::string Database::Statement::fetchColumn(int col) {
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uint sz = static_cast<uint>(sqlite3_column_bytes(stmt, col)); // according to documentation will never be negative
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std::string res(sz, '\0');
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memcpy(&res[0], sqlite3_column_text(stmt, col), sz);
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return res;
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}
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template<> const char* Database::Statement::fetchColumn(int col) {
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// while sqlite3_column_text maybe more correctly returns an unsigned const char*, signed const char* is more consistent
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return reinterpret_cast<const char*>(sqlite3_column_text(stmt, col));
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}
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template<> int Database::Statement::fetchColumn(int col) {
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return sqlite3_column_int(stmt, col);
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}
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template<> uint Database::Statement::fetchColumn(int col) {
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return static_cast<uint>(sqlite3_column_int(stmt, col));
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}
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template<> long Database::Statement::fetchColumn(int col) {
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return static_cast<long>(sqlite3_column_int64(stmt, col));
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}
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template<> ulong Database::Statement::fetchColumn(int col) {
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return static_cast<ulong>(sqlite3_column_int64(stmt, col));
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}
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template<> double Database::Statement::fetchColumn(int col) {
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return sqlite3_column_double(stmt, col);
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}
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bool Database::Statement::row() {
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return sqlite3_step(stmt) == SQLITE_ROW;
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}
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