public async Task ReleaseAsync(int permits)
{
var preparedScript = LuaScriptLoader.GetScript(LockScript.SEMAPHORE_RELEASE);
var result = await _redisDb.ScriptEvaluateAsync(preparedScript, new
{
lock_key = GetLockKey(),
channel = GetChannelName(),
permits = permits,
});
}
public async Task <bool> TryAcquireAsync(int quantity, int millisecondsTimeout)
{
var preparedScript = LuaScriptLoader.GetScript(LockScript.SEMAPHORE_ACQUIRE);
var result = await _redisDb.ScriptEvaluateAsync(preparedScript, new
{
lock_key = GetLockKey(),
quantity = quantity,
});
return(string.Equals("1", result.ToString()));
}
protected virtual async Task <bool> RenewExpirationAsync()
{
var preparedScript = LuaScriptLoader.GetScript(LockScript.MUTEX_LOCK_RENEW);
var result = await RedisDb.ScriptEvaluateAsync(preparedScript, new
{
key = LockKey,
field = LockId,
expire = InternalLockLeaseTime,
});
return(string.Equals("1", result.ToString()));
}
protected virtual async Task InvokUnlockScriptAsync(int leaseTime)
{
var preparedScript = LuaScriptLoader.GetScript(LockScript.MUTEX_LOCK_RELEASE);
var result = await RedisDb.ScriptEvaluateAsync(preparedScript, new
{
lock_key = LockKey,
lock_id = LockId,
expire = leaseTime,
channel = ChannelName,
msg = LockPubSub.UNLOCK_MESSAGE,
});
}
protected override async Task InvokUnlockScriptAsync(int leaseTime)
{
var preparedScript = LuaScriptLoader.GetScript(LockScript.WRITE_LOCK_RELEASE);
var result = await RedisDb.ScriptEvaluateAsync(preparedScript, new
{
lock_key = LockKey,
channel = ChannelName,
read_unlock_msg = LockPubSub.READ_UNLOCK_MESSAGE,
expire = leaseTime,
lock_id = LockId
});
}
protected override async Task <bool> RenewExpirationAsync()
{
var preparedScript = LuaScriptLoader.GetScript(LockScript.READ_LOCK_RENEW);
var result = await RedisDb.ScriptEvaluateAsync(preparedScript, new
{
lock_key = LockKey,
timeout_prefix = LockKey,
expire = InternalLockLeaseTime,
lock_id = LockId
});
return(string.Equals("1", result.ToString()));
}
protected override async Task InvokUnlockScriptAsync(int leaseTime)
{
var preparedScript = LuaScriptLoader.GetScript(LockScript.READ_LOCK_RELEASE);
var result = await RedisDb.ScriptEvaluateAsync(preparedScript, new
{
lock_key = LockKey,
channel = ChannelName,
timeout_key = GetReadWriteTimeoutNamePrefix(),
timeout_prefix = LockKey,
unlock_msg = LockPubSub.UNLOCK_MESSAGE,
lock_id = LockId
});
}
protected virtual async Task <int?> InvokLockScriptAsync(int leaseTime)
{
var preparedScript = LuaScriptLoader.GetScript(LockScript.MUTEX_LOCK_ACQUIRE);
var result = await RedisDb.ScriptEvaluateAsync(preparedScript, new
{
lock_key = LockKey,
lock_id = LockId,
expire = leaseTime,
});
if (result.IsNull)
{
return(null);
}
return(int.Parse(result.ToString()));
}
protected override async Task <int?> InvokLockScriptAsync(int leaseTime)
{
var preparedScript = LuaScriptLoader.GetScript(LockScript.READ_LOCK_ACQUIRE);
var result = await RedisDb.ScriptEvaluateAsync(preparedScript, new
{
lock_key = LockKey,
timeout_key = GetReadWriteTimeoutNamePrefix(),
expire = leaseTime,
lock_id = LockId,
write_lock = GetWriteLockName()
});
if (result.IsNull)
{
return(null);
}
return(int.Parse(result.ToString()));
}