epicsThreadOnce crashes in static object destructor on win32

[James Rowland]

win32 epicsThreadOnce locks a global mutex that is destroyed by the atexit handler threadCleanupWIN32. The short example below fails.

#include <stdio.h>
#include <epicsThread.h>

epicsThreadOnceId once = EPICS_THREAD_ONCE_INIT;

void bye(void * usr)
{
    printf("bye\n");
}

struct Hello
{
    ~Hello()
        {
            epicsThreadOnce(&once, bye, NULL);
        }
};

Hello h;

int main(int argc, char *argv[])
{
    printf("hi\n");
    return 0;
}

[Andrew Johnson (anj)]

Just deleting the last two lines from the threadCleanupWIN32() routine should fix this, see patch. Since the process is dying it shouldn't matter that we don't clean up completely.