It’s a massive win, and I would question the credibility of any systems programmer that doesn’t recognize that as soon as they understand the wrapper arrangement. I would have to assume that such people are going around making egregious errors in how they’re using mutexes in their C-like code, and are the reason Rust is such an important language to roll out everywhere.
The only time I’ve ever needed a Mutex<()> so far with Rust is when I had to interop with a C library which itself was not thread safe (unprotected use of global variables), so I needed to lock the placeholder mutex each time I called one of the C functions.
The only time I’ve ever needed a Mutex<()> so far with Rust is when I had to interop with a C library which itself was not thread safe (unprotected use of global variables), so I needed to lock the placeholder mutex each time I called one of the C functions.
Actually I think in this case you’re still better off using a Mutex with “data” inside. I’ve done this before. The idea is that you make a unit struct MyCFuncs or whatever and then you only call the C functions from methods of that unit struct. Then you can only access those methods once you lock the Mutex and get the instance of the unit struct. It feel elegant to me.
It’s a massive win, and I would question the credibility of any systems programmer that doesn’t recognize that as soon as they understand the wrapper arrangement. I would have to assume that such people are going around making egregious errors in how they’re using mutexes in their C-like code, and are the reason Rust is such an important language to roll out everywhere.
The only time I’ve ever needed a
Mutex<()>so far with Rust is when I had to interop with a C library which itself was not thread safe (unprotected use of global variables), so I needed to lock the placeholder mutex each time I called one of the C functions.Actually I think in this case you’re still better off using a Mutex with “data” inside. I’ve done this before. The idea is that you make a unit struct
MyCFuncsor whatever and then you only call the C functions from methods of that unit struct. Then you can only access those methods once you lock the Mutex and get the instance of the unit struct. It feel elegant to me.