factor/vm/os-windows-nt.c

62 lines
1.3 KiB
C

#include "master.h"
s64 current_millis(void)
{
FILETIME t;
GetSystemTimeAsFileTime(&t);
return (((s64)t.dwLowDateTime | (s64)t.dwHighDateTime<<32)
- EPOCH_OFFSET) / 10000;
}
DEFINE_PRIMITIVE(cwd)
{
F_CHAR buf[MAX_PATH + 4];
if(!GetCurrentDirectory(MAX_PATH + 4, buf))
io_error();
box_u16_string(buf);
}
DEFINE_PRIMITIVE(cd)
{
SetCurrentDirectory(unbox_u16_string());
}
long exception_handler(PEXCEPTION_POINTERS pe)
{
PEXCEPTION_RECORD e = (PEXCEPTION_RECORD)pe->ExceptionRecord;
CONTEXT *c = (CONTEXT*)pe->ContextRecord;
if(in_code_heap_p(c->Eip))
signal_callstack_top = (void *)c->Esp;
else
signal_callstack_top = NULL;
if(e->ExceptionCode == EXCEPTION_ACCESS_VIOLATION)
{
signal_fault_addr = e->ExceptionInformation[1];
c->Eip = (CELL)memory_signal_handler_impl;
}
else if(e->ExceptionCode == EXCEPTION_FLT_DIVIDE_BY_ZERO
|| e->ExceptionCode == EXCEPTION_INT_DIVIDE_BY_ZERO)
{
signal_number = ERROR_DIVIDE_BY_ZERO;
c->Eip = (CELL)divide_by_zero_signal_handler_impl;
}
else
{
signal_number = 11;
c->Eip = (CELL)misc_signal_handler_impl;
}
return EXCEPTION_CONTINUE_EXECUTION;
}
void c_to_factor_toplevel(CELL quot)
{
AddVectoredExceptionHandler(0, (void*)exception_handler);
c_to_factor(quot);
RemoveVectoredExceptionHandler((void*)exception_handler);
}