Can't Compile Global Semaphores?

[rikki cattermole]

On 09/10/2018 4:43 AM, Matt Richardson wrote:
> On Monday, 27 July 2015 at 20:57:00 UTC, Jack Stouffer wrote:
>> On Monday, 27 July 2015 at 20:12:10 UTC, John Colvin wrote:
>>> Yes, but then core.sync.semaphore doesn't support being shared, so...
>>
>> Ok, so I made the code run by using __gshared instead of shared. It 
>> seems really odd that a semaphore object doesn't support being shared, 
>> this that a bug?
>>
>> Here is the modified code:
>>
>> import core.sync.semaphore;
>> import core.thread;
>> import std.string;
>> import std.stdio;
>>
>> __gshared string data;
>> __gshared Semaphore sem;
>>
>>
>> void read() {
>>     data = "From Thread";
>>     sem.notify();
>> }
>>
>>
>> void write() {
>>     sem.wait();
>>     data.writeln;
>> }
>>
>>
>> void main() {
>>     sem = new Semaphore();
>>     Thread reader = new Thread(&read);
>>     Thread writer = new Thread(&write);
>>
>>     reader.start();
>>     writer.start();
>> }
> 
> I JUST found this after several hours of searching.  Thank you, Jack.
> 
> Now if sharing a semaphore could be thing, I'd be happy.  It's honestly 
> one of (it's actually a long list) the major blocks to us using D 
> primarily.

shared doesn't do much, so if __gshared works, use it (that is what it 
is there for). So it isn't a blocker.