cygwin fork bug on Windows 9x

[Paul Kienzle]

Hi,

I've finally got a few lines of code which reproduce the error
message I see in cygwin for each dynamically loaded oct-file
every time I call a system function.


The following code demonstrates the error:

--- dynmain.cc:
#include <iostream>
#include <windows.h>
int main(int argc, char *argv[])
{
HINSTANCE handle = LoadLibrary("dynsub.dll");
std::cout << "# Calling fork\n";
std::cout << (fork()?"parent\n":"child\n");
return 0;
}

--- dynsub.c:
#include <stdio.h>
void dynsub(void) { printf("in dynsub\n"); }

--- Makefile:
all: dynsub.dll dynmain.exe
dynmain.exe: dynmain.cc  ; g++ -o $@ $<
dynsub.dll : dynsub.c   ; gcc -shared -o $@ $<


I will work on purging cygwin of fork calls, and hopefully
that will fix the problem.  We need to do this anyway for
a mingw distribution.  Bonus: hopefully performance will
improve when calling system functions.

Anybody have experience using pipes in the Windows API?
Hints are much appreciated.  I think we can get away with
half-duplex pipes almost everywhere.

Thanks in advance,

Paul Kienzle
address@hidden