Re: [boost] Boost.Threads, N2178, N2184, et al

From: Howard Hinnant (hinnant_at_[hidden])
Date: 2007-03-20 11:14:35

On Mar 19, 2007, at 8:33 PM, David Abrahams wrote:

>
> on Mon Mar 19 2007, "Peter Dimov" <pdimov-AT-mmltd.net> wrote:
>
>> I could've gone with Howard's exclusive_lock, but
>> it's a bit too lengthy and hard to type for repeated use.

I must admit that I find myself copy/pasting this name because of its  
length, especially when used in combination with the proposed  
templated condition:

std::condition<std::exclusive_lock<std::mutex>> cv;

I like Peter's approach in N2178 of giving typedefs to the common  
combinations of these types.

> unique_lock (c.f. unique_ptr)?

Works for me.

Or maybe (playing around with upgradable here - N2094):

namespace std {

typedef exclusive_lock<mutex>              lock_this;
typedef exclusive_lock<upgradable_mutex>   write_lock;
typedef sharable_lock<upgradable_mutex>    read_lock;
typedef upgradable_lock<upgradable_mutex>  read_upgradable_lock;
typedef basic_condition<lock_this>         condition;
typedef basic_condition<read_lock>         read_waiter_condition;

}

-Howard