ThreadStatic attribute

[CJ]

I came across the ThreadStatic attribute today, but I'm a bit confused
by it.

I understand that it makes a variable static to a particular thread,
so each thread will have it's own value for it (unlike a regular
static variable). But then what makes it different to just an
ordinary class level variable? In other words, what's the difference
between var1 and var2 below?

public class Test
{
[ThreadStatic]
public static int var1;

public int var2;
}

 

[Jon Skeet [C# MVP]]

I came across the ThreadStatic attribute today, but I'm a bit confused
by it.

I understand that it makes a variable static to a particular thread,
so each thread will have it's own value for it (unlike a regular
static variable). But then what makes it different to just an
ordinary class level variable? In other words, what's the difference
between var1 and var2 below?

public class Test
{
[ThreadStatic]
public static int var1;

public int var2;

}

Ordinary variables are shared between threads. So, if thread X sets
values for var1 and var2, and thread Y reads them, it will see the new
value for var2, but not the new value for var1.

Jon

 

[CJ]

I came across the ThreadStatic attribute today, but I'm a bit confused
by it.

I understand that it makes a variable static to a particular thread,
so each thread will have it's own value for it (unlike a regular
static variable). But then what makes it different to just an
ordinary class level variable? In other words, what's the difference
between var1 and var2 below?

public class Test
{
[ThreadStatic]
public static int var1;

public int var2;

}

Ordinary variables are shared between threads. So, if thread X sets
values for var1 and var2, and thread Y reads them, it will see the new
value for var2, but not the new value for var1.

Jon

Doh! I realised the answer this morning as I woke up Clearly I
wasn't thinking yesterday!