I'm using DCD as a library in DlangIDE.
All DCD calls are made from separate thread.
DCD works ok until some thread is created (e.g. to invoke DUB for building).
After this operation DCD stops working correctly and can locate symbols only from current source file.

Root cause:
If some another thread is created after DCD thread instantiated ModuleCache, DCD is not able to process goToDefinition for symbol and other functions if they are related to other modules than current source file.
Probably, it's related to ModuleCache and/or allocators.

Steps to reproduce:
After creation of ModuleCache, start some thread and wait until it's finished.


Does someone know some workaround?


Filed DCD issue 407.

DCD stops working if some thread is created after instantiation of ModuleCache

https://github.com/dlang-community/DCD/issues/407

On Friday, 11 August 2017 at 08:17:32 UTC, Vadim Lopatin wrote:
> I'm using DCD as a library in DlangIDE.
> All DCD calls are made from separate thread.
> DCD works ok until some thread is created (e.g. to invoke DUB for building).

/// call this function after DCD ModuleCache is instantiated to reproduce issue
void testDCDFailAfterThreadCreation() {
    import core.thread;
    Thread thread = new Thread(delegate() {
        Thread.sleep(dur!"msecs"(2000));
    });
    thread.start();
    thread.join();
}