/// <summary>
/// 用于测试一个程序是否是唯一实例，通过字符串进行限制。
/// </summary>
/// <param name="appId"></param>
public static bool IsSingleton(string appId)
{
MemoryShare ms = new MemoryShare();
ms.Init(appId);
byte[] bts = new byte[ms.MaxLength];
ms.Read(ref bts, 0, bts.Length);
bool b = true;
for (int i = 0; i < bts.Length; i++)
{
if (bts[i] > 0)
{
b = false;
break;
}
}
if (b)
{
for (int i = 0; i < bts.Length; i++)
{
bts[i] = 1;
}
ms.Write(bts, 0, bts.Length);
}
return(b);
}
