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rama creada apartir de master en j

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jrojas
2026-06-26 10:29:23 +02:00
parent 319fd3dfb0
commit c1517fda87
2810 changed files with 1927392 additions and 25392 deletions
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adas-core.Application/Services/Caching/RedisLockProvider.cs
+45 -34
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@@ -24,44 +24,55 @@ namespace adas_core.Application.Services.Caching
private readonly ConcurrentDictionary<string, string> _tokens =
new(StringComparer.Ordinal);
/// <summary>
/// Attempts to acquire a distributed lock for the specified key using Redis, retrying until the timeout expires.
/// Returns <c>false</c> if the Redis database is unavailable or if the lock cannot be acquired within the given timeout.
/// </summary>
/// <param name="key">The identifier of the resource to lock.</param>
/// <param name="timeout">The maximum duration to keep retrying before giving up.</param>
/// <returns><c>true</c> if the lock was successfully acquired; otherwise, <c>false</c>.</returns>
public async Task<bool> AcquireAsync(string key, TimeSpan timeout)
{
var redis = getDatabase();
if (redis is null) return false;
var redisKey = (RedisKey)(_prefix + key);
var token = Guid.NewGuid().ToString("N");
var end = DateTime.UtcNow.Add(timeout);
while (DateTime.UtcNow < end)
{
if (await redis.StringSetAsync(redisKey, token, _ttl, When.NotExists))
{
_tokens[key] = token;
return true;
var redis = getDatabase();
if (redis is null) return false;
var redisKey = (RedisKey)(_prefix + key);
var token = Guid.NewGuid().ToString("N");
var end = DateTime.UtcNow.Add(timeout);
while (DateTime.UtcNow < end)
{
if (await redis.StringSetAsync(redisKey, token, _ttl, When.NotExists))
{
_tokens[key] = token;
return true;
}
await Task.Delay(_retryDelay);
}
return false;
}
await Task.Delay(_retryDelay);
}
return false;
}
/// <summary>
/// Asynchronously releases the token associated with the specified key by removing it from the in-memory token store and executing a Lua release script against Redis. If the key is not found in the local store, or the Redis database is unavailable, the method returns without performing any further action.
/// </summary>
/// <param name="key">The identifier of the token to release.</param>
public async Task ReleaseAsync(string key)
{
if (!_tokens.TryRemove(key, out var token))
return;
var redis = getDatabase();
if (redis is null) return;
var redisKey = (RedisKey)(_prefix + key);
await redis.ScriptEvaluateAsync(
LuaReleaseScript,
[redisKey],
[token]
);
}
{
if (!_tokens.TryRemove(key, out var token))
return;
var redis = getDatabase();
if (redis is null) return;
var redisKey = (RedisKey)(_prefix + key);
await redis.ScriptEvaluateAsync(
LuaReleaseScript,
[redisKey],
[token]
);
}
}
}