我正在尝试在不同的线程中同时调用Fortran方法。执行完全独立于主线程。问题是使用模块变量意味着变量由dll创建为全局变量,这意味着两个调用将使用它,从而对程序进行instacrash,因此它会发生。这是我的解释,基于此answer of Bálint Aradi。
C#
static void Main(string[] args)
{
RunTwiceSync();//WORKS
RunTwiceAsync();//INSTACRASH
}
private static void RunTwiceSync()
{
TestMyArray();
TestMyArray();
}
private static void RunTwiceAsync()
{
ThreadStart ts = new ThreadStart(() =>
{
TestMyArray();
});
Thread t = new Thread(ts);
t.Start();
TestMyArray();
}
private static void TestMyArray()
{
Console.WriteLine("START");
int size = 52;
float[] myarray = new float[size];
sub_(ref size, myarray);
Console.WriteLine(myarray.Select(x => x.ToString()).Aggregate((x, y) => x + ";" + y));
Console.ReadLine();
}
[DllImport("FortranArraySimpleTest.dll", CallingConvention = CallingConvention.Cdecl)]
static extern void sub_(ref int size, float[] myarray);
FORTRAN
!DEC$ ATTRIBUTES DLLEXPORT::ingammaextern
subroutine sub(size, myarray)
use module1 ! * REMOVING MODULE USAGE FIXES THE PROBLEM
implicit none
INTEGER :: size
integer :: assignme
REAL, dimension(1:size) :: myarray
assignme = size
allocate(alocarray(1:assignme))
deallocate(alocarray)
end subroutine
! ************************************begin another file***********
MODULE module1
IMPLICIT NONE
real, dimension(:), allocatable :: alocarray
END MODULE module1
这个解决方案,删除模块,是非常麻烦和维护主要的头痛,由于代码使我发布的问题非常大。
环境: GNU Fortran编译器,Windows 7 64位,Fortran的CodeBlocks,VS2012,我没有更改任何编译器选项。
有什么想法吗?
感谢您的时间
答案 0 :(得分:0)
可以做的是更改派生类型的模块,然后在每次调用时传递
module orig
use whatever
interfaces
small types
variables
contains
procedures
end module
到
module state_class
use whatever
interfaces
small types
shared variables
type state
non shared variables
contains
procedure :: the procedures
(not obligatory)
end type
contains
procedures changed to accept one additional argument:
a passed dummy argument class(state)
or just a regular dummy argument type(state)
end module
每个线程都有自己的state
类实例,并将其显式传递或作为传递的伪参数传递。