Determining Stack Space with Visual Studio

Question

I\'m programming in C in Visual Studio 2005. I have a multi-threaded program, but that\'s not especially important here.

How can I determine (approximately) how muc

Answer 1

You can make use of information in the Win32 Thread Information Block

When you want in a thread to find out how much stack space it uses you can do something like this:

#include 
#include 
#include 

inline NT_TIB* getTib()
{
    return (NT_TIB*)__readfsdword( 0x18 );
}
inline size_t get_allocated_stack_size()
{
    return (size_t)getTib()->StackBase - (size_t)getTib()->StackLimit;
}

void somewhere_in_your_thread()
{
    // ...
    size_t sp_value = 0;
    _asm { mov [sp_value], esp }
    size_t used_stack_size = (size_t)getTib()->StackBase - sp_value;

    printf("Number of bytes on stack used by this thread: %u\n", 
           used_stack_size);
    printf("Number of allocated bytes on stack for this thread : %u\n",
           get_allocated_stack_size());    
    // ...
}