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Corrigeons la base de donnée des caches...

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This commit is contained in:
Eric Coissac
2025-10-26 18:57:13 +01:00
parent 80dd1aa2d6
commit 79271514b4
2 changed files with 125 additions and 45 deletions
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126
pmocache/src/db.rs
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@@ -7,10 +7,12 @@ use chrono::Utc;
use rusqlite::{params, Connection, Error, OptionalExtension};
use serde::Serialize;
use serde_json::{Map, Number, Value};
use tracing::{trace, warn};
use std::path::Path;
use std::str::FromStr;
use std::sync::Mutex;
use std::sync::{Mutex, MutexGuard};
use std::time::Instant;
#[cfg(feature = "openapi")]
use utoipa::ToSchema;
@@ -24,7 +26,7 @@ pub struct CacheEntry {
pub pk: String,
/// URL source de l'élément
#[cfg_attr(feature = "openapi", schema(example = "https://example.com/resource"))]
pub id: String,
pub id: Option<String>,
/// Collection à laquelle appartient l'élément (optionnel)
#[cfg_attr(feature = "openapi", schema(example = "album:123"))]
pub collection: Option<String>,
@@ -53,7 +55,46 @@ pub struct DB {
conn: Mutex<Connection>,
}
struct ConnGuard<'a> {
ctx: &'static str,
guard: MutexGuard<'a, Connection>,
}
impl<'a> Drop for ConnGuard<'a> {
fn drop(&mut self) {
trace!("DB mutex → released ({})", self.ctx);
}
}
impl<'a> std::ops::Deref for ConnGuard<'a> {
type Target = Connection;
fn deref(&self) -> &Self::Target {
&self.guard
}
}
impl<'a> std::ops::DerefMut for ConnGuard<'a> {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.guard
}
}
impl DB {
fn lock_conn(&self, ctx: &'static str) -> ConnGuard<'_> {
trace!("DB mutex → acquiring ({ctx})");
let start = Instant::now();
let guard = self.conn.lock().unwrap();
let waited = start.elapsed();
trace!("DB mutex → acquired ({ctx}) in {:?}", waited);
if waited > std::time::Duration::from_millis(50) {
warn!("DB mutex wait >50 ms ({}): {:?}", ctx, waited);
}
ConnGuard { ctx, guard }
}
/// Initialise une nouvelle base de données avec une table personnalisée
///
/// # Arguments
@@ -152,7 +193,7 @@ impl DB {
collection: Option<&str>,
metadata: Option<&Value>,
) -> rusqlite::Result<()> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("add_with_metadata");
conn.execute(
"INSERT INTO asset (pk, id, collection, hits, last_used)
@@ -187,7 +228,7 @@ impl DB {
Error::InvalidParameterName("metadata must be a JSON object".to_owned())
})?;
let mut conn = self.conn.lock().unwrap();
let mut conn = self.lock_conn("set_metadata");
let tx = conn.transaction()?;
@@ -228,7 +269,7 @@ impl DB {
Value::Object(map) => ("string", Some(Value::Object(map).to_string())),
};
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("set_a_metadata");
conn.execute(
"INSERT INTO metadata (pk, key, value_type, value)
@@ -246,7 +287,7 @@ impl DB {
///
/// Préférer `get_metadata_value` pour les appels externes.
pub fn get_a_metadata(&self, pk: &str, key: &str) -> rusqlite::Result<Option<Value>> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("get_a_metadata");
conn.query_row(
"SELECT value_type, value FROM metadata WHERE pk = ?1 AND key = ?2",
@@ -264,7 +305,7 @@ impl DB {
///
/// Retourne `Ok(None)` si aucune métadonnée n'est présente.
pub fn get_metadata(&self, pk: &str) -> rusqlite::Result<Option<Value>> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("get_metadata");
let mut stmt = conn.prepare("SELECT key, value_type, value FROM metadata WHERE pk = ?1")?;
let rows = stmt.query_map([pk], |row| {
@@ -360,7 +401,7 @@ impl DB {
/// Récupère une métadonnée individuelle, si elle existe.
pub fn get_metadata_value(&self, pk: &str, key: &str) -> rusqlite::Result<Option<Value>> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("get_metadata_value");
conn.query_row(
"SELECT value_type, value FROM metadata WHERE pk = ?1 AND key = ?2",
@@ -381,7 +422,7 @@ impl DB {
/// * `with_metadata` - Charge les métadonnées associées si `true`.
pub fn get(&self, pk: &str, with_metadata: bool) -> rusqlite::Result<CacheEntry> {
let mut entry = {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("get");
conn.query_row(
"SELECT pk, id, collection, hits, last_used \
FROM asset \
@@ -390,7 +431,7 @@ impl DB {
|row| {
Ok(CacheEntry {
pk: row.get(0)?,
id: row.get(1)?,
id: row.get::<_, Option<String>>(1)?,
collection: row.get(2)?,
hits: row.get(3)?,
last_used: row.get(4)?,
@@ -421,7 +462,7 @@ impl DB {
with_metadata: bool,
) -> rusqlite::Result<CacheEntry> {
let mut entry = {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("get_from_id");
conn.query_row(
"SELECT pk, id, collection, hits, last_used \
FROM asset \
@@ -430,7 +471,7 @@ impl DB {
|row| {
Ok(CacheEntry {
pk: row.get(0)?,
id: row.get(1)?,
id: row.get::<_, Option<String>>(1)?,
collection: row.get(2)?,
hits: row.get(3)?,
last_used: row.get(4)?,
@@ -451,7 +492,7 @@ impl DB {
///
/// Retourne `false` si l'enregistrement n'existe pas ou si la requête échoue.
pub fn does_collection_contain_id(&self, collection: &str, id: &str) -> bool {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("does_collection_contain_id");
conn.query_row(
"SELECT EXISTS(SELECT 1 FROM asset WHERE collection = ?1 AND id = ?2)",
params![collection, id],
@@ -467,7 +508,7 @@ impl DB {
///
/// Retourne `QueryReturnedNoRows` si aucun enregistrement ne correspond.
pub fn get_pk_from_id(&self, collection: &str, id: &str) -> rusqlite::Result<String> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("get_pk_from_id");
conn.query_row(
"SELECT pk FROM asset WHERE collection = ?1 AND id = ?2",
params![collection, id],
@@ -479,7 +520,7 @@ impl DB {
///
/// Retourne `QueryReturnedNoRows` si la clé primaire est inconnue.
pub fn set_id(&self, pk: &str, id: &str) -> rusqlite::Result<()> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("set_id");
let updated = conn.execute("UPDATE asset SET id = ?2 WHERE pk = ?1", params![pk, id])?;
if updated == 0 {
@@ -495,7 +536,7 @@ impl DB {
///
/// * `pk` - Clé primaire de l'élément
pub fn update_hit(&self, pk: &str) -> rusqlite::Result<()> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("update_hit");
conn.execute(
&"UPDATE asset
@@ -509,7 +550,7 @@ impl DB {
/// Purge toutes les entrées de la base de données.
pub fn purge(&self) -> rusqlite::Result<()> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("purge");
conn.execute("DELETE FROM asset", [])?;
Ok(())
}
@@ -520,26 +561,28 @@ impl DB {
///
/// * `include_metadata` - Ajoute les métadonnées à chaque entrée si `true`.
pub fn get_all(&self, include_metadata: bool) -> rusqlite::Result<Vec<CacheEntry>> {
let conn = self.conn.lock().unwrap();
let mut entries = {
let conn = self.lock_conn("get_all");
let mut stmt = conn.prepare(
"SELECT pk, id, collection, hits, last_used
let mut stmt = conn.prepare(
"SELECT pk, id, collection, hits, last_used
FROM asset
ORDER BY hits DESC",
)?;
)?;
let mut entries = stmt
.query_map([], |row| {
let rows = stmt.query_map([], |row| {
Ok(CacheEntry {
pk: row.get(0)?,
id: row.get(1)?,
id: row.get::<_, Option<String>>(1)?,
collection: row.get(2)?,
hits: row.get(3)?,
last_used: row.get(4)?,
metadata: None,
})
})?
.collect::<rusqlite::Result<Vec<_>>>()?;
})?;
rows.collect::<rusqlite::Result<Vec<_>>>()?
};
if include_metadata {
for entry in entries.iter_mut() {
@@ -561,26 +604,27 @@ impl DB {
collection: &str,
include_metadata: bool,
) -> rusqlite::Result<Vec<CacheEntry>> {
let conn = self.conn.lock().unwrap();
let mut entries = {
let conn = self.lock_conn("get_by_collection");
let mut stmt = conn.prepare(
"SELECT pk, id, collection, hits, last_used
let mut stmt = conn.prepare(
"SELECT pk, id, collection, hits, last_used
FROM asset
WHERE collection = ?1 ORDER BY hits DESC",
)?;
let mut entries = stmt
.query_map([collection], |row| {
)?;
let rows = stmt.query_map([collection], |row| {
Ok(CacheEntry {
pk: row.get(0)?,
id: row.get(1)?,
id: row.get::<_, Option<String>>(1)?,
collection: row.get(2)?,
hits: row.get(3)?,
last_used: row.get(4)?,
metadata: None,
})
})?
.collect::<rusqlite::Result<Vec<_>>>()?;
})?;
rows.collect::<rusqlite::Result<Vec<_>>>()?
};
if include_metadata {
for entry in entries.iter_mut() {
@@ -596,14 +640,14 @@ impl DB {
/// Les métadonnées associées sont supprimées automatiquement grâce à la
/// contrainte `ON DELETE CASCADE`.
pub fn delete_collection(&self, collection: &str) -> rusqlite::Result<()> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("delete_collection");
conn.execute("DELETE FROM asset WHERE collection = ?1", [collection])?;
Ok(())
}
/// Supprime une entrée de la base de données ainsi que ses métadonnées.
pub fn delete(&self, pk: &str) -> rusqlite::Result<()> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("delete");
conn.execute("DELETE FROM asset WHERE pk = ?1", [pk])?;
Ok(())
}
@@ -614,7 +658,7 @@ impl DB {
///
/// Le nombre total d'entrées
pub fn count(&self) -> rusqlite::Result<usize> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("count");
let count: i64 = conn.query_row("SELECT COUNT(*) FROM asset", [], |row| row.get(0))?;
Ok(count as usize)
}
@@ -632,7 +676,7 @@ impl DB {
///
/// Liste des entrées les plus anciennes, triées par last_used ASC
pub fn get_oldest(&self, limit: usize) -> rusqlite::Result<Vec<CacheEntry>> {
let conn = self.conn.lock().unwrap();
let conn = self.lock_conn("get_oldest");
let mut stmt = conn.prepare(
"SELECT pk, source_url, collection, hits, last_used, metadata_json
@@ -645,7 +689,7 @@ impl DB {
.query_map([limit], |row| {
Ok(CacheEntry {
pk: row.get(0)?,
id: row.get(1)?,
id: row.get::<_, Option<String>>(1)?,
collection: row.get(2)?,
hits: row.get(3)?,
last_used: row.get(4)?,