I hate Win32 (Was: The new std.process is ready for review)
Lars T. Kyllingstad
public at kyllingen.net
Sun Mar 31 08:21:37 PDT 2013
<rant>
While working on std.process, I have developed a deep and intense
loathing for Windows process handling in particular, and the
Win32 API in general.
On Windows XP, what do you think will happen when you run the
following program?
int main()
{
if (TerminateProcess(INVALID_HANDLE_VALUE, 123))
{
writeln("TerminateProcess succeeded, but it shouldn't
have...");
return 1;
}
else
{
writeln("TerminateProcess failed, as it should.");
return 0;
}
}
As you may already have guessed, it does *not* print
"TerminateProcess failed" and exit with code 0.
But does it print "TerminateProcess succeeded" and exit with code
1? NO! It prints NOTHING and exits with code 123, because
TerminateProcess() terminates the CURRENT process when it is
passed INVALID_HANDLE_VALUE. Aaaaargh!
</rant>
Sorry, just had to get that off my chest. I just spent quite
some time trying to figure out why the Win32 unittests were
failing when there was no assert error or any other indication of
what went wrong.
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