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digitalmars.D.bugs - [Issue 13727] New: std.stdio.File not thread-safe


          Issue ID: 13727
           Summary: std.stdio.File not thread-safe
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Severity: major
          Priority: P1
         Component: Phobos
          Assignee: nobody puremagic.com
          Reporter: thecybershadow gmail.com

////////////// test.d //////////////
import std.array;
import std.parallelism;
import std.stdio;

void main()
    foreach (fn; 
        // synchronized 
        { File f = File(fn, "rb"); }

On Windows 32-bit, this program will either deadlock, or print a dozen
exceptions such as:

std.exception.ErrnoException std\stdio.d(640): Could not close file `test.d'
(No error)

Uncommenting the "synchronized" line, or commenting the ".parallel" line fixes
the problem.

Works fine on 64 bits (with MSVC runtime).

Nov 12 2014