mirror of
https://github.com/hanzoai/tasks.git
synced 2026-10-04 02:04:03 +00:00
Alex ShtinandGitHub
8e8f1b0f7c
## What changed?
<!-- Describe what has changed in this PR -->
Remove license header from every file. Because it is really hard to
follow in this PR here is the summary:
1. License header is removed from all `.go` and `.proto` files
:fireworks::fireworks:🎆.
2. `LICENSE` file in the root directory has only Temporal and Uber
copyrights.
3. 5 other `LICENSE` files added to the packages which have copyrights
different from Temporal and Uber: Datadog, Xargin, "Mat Ryer, Tyler
Bunnell and contributors".
4. `license_file` flag is removed from all code generation tools.
5. `copyright_file` flag is removed from `go:generate mockgen`
directive.
6. All copyright related targets are removed from `Makefile`.
7. Updated Temporal copyright year to 2025 everywhere.
## Why?
<!-- Tell your future self why have you made these changes -->
I double checked with legal department that it is not needed to have
license header in every file. One file per repo is enough. I put all
copyrights to the root `LICENSE` file and removed header from all other
files. Also updated tools and `Makefile`.
85 lines
1.9 KiB
Go
85 lines
1.9 KiB
Go
package sqlite
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import (
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"sync"
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"github.com/jmoiron/sqlx"
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"go.temporal.io/server/common/config"
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"go.temporal.io/server/common/resolver"
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)
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// This pool properly enabled the support for SQLite in the temporal server.
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// Internal Temporal services are highly isolated, each will create at least a single connection to the database violating
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// the SQLite concept of safety only within a single thread.
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type connPool struct {
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mu sync.Mutex
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pool map[string]entry
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}
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type entry struct {
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db *sqlx.DB
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refCount int
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}
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func newConnPool() *connPool {
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return &connPool{
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pool: make(map[string]entry),
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}
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}
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// Allocate allocates the shared database in the pool or returns already exists instance with the same DSN. If instance
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// for such DSN already exists, it will be returned instead. Each request counts as reference until Close.
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func (cp *connPool) Allocate(
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cfg *config.SQL,
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resolver resolver.ServiceResolver,
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create func(cfg *config.SQL, resolver resolver.ServiceResolver) (*sqlx.DB, error),
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) (db *sqlx.DB, err error) {
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cp.mu.Lock()
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defer cp.mu.Unlock()
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dsn, err := buildDSN(cfg)
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if err != nil {
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return nil, err
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}
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if entry, ok := cp.pool[dsn]; ok {
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entry.refCount++
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return entry.db, nil
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}
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db, err = create(cfg, resolver)
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if err != nil {
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return nil, err
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}
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cp.pool[dsn] = entry{db: db, refCount: 1}
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return db, nil
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}
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// Close virtual connection to database. Only closes for real once no references left.
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func (cp *connPool) Close(cfg *config.SQL) {
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cp.mu.Lock()
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defer cp.mu.Unlock()
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dsn, err := buildDSN(cfg)
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if err != nil {
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return
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}
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e, ok := cp.pool[dsn]
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if !ok {
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// no such database
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return
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}
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e.refCount--
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// todo: at the moment pool will persist a single connection to the DB for the whole duration of application
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// temporal will start and stop DB connections multiple times, which will cause the loss of the cache
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// and "db is closed" error
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// if e.refCount == 0 {
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// e.db.Close()
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// delete(cp.pool, dsn)
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// }
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}
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