[ECOS] Re: uSTL how to use it?

[Oliver Munz @ SNR]

Thann

The mallinfo() tip was helping.
I did some simple test-programs, where the code don't crash and the 
RAM-usage is like expected, but still the iostreams don't work like i 
expect it. The ofstream cant write to a serial or USB device, and the 
istringstream wont read a long.
example1:
ostream fo;
fo.open("/tty2");
fo.good(); //returns false

example2
long n;
istream ss;
ss.str("12");
diag_printf(ss.str().c_str()); //prints "12"
ss >> n; //blocks for ever

I hope i find some time to look at it closer...

Oliver

Sergei Gavrikov schrieb:
> Oliver Munz wrote:
>
>> In the moment i think it's possible that the crashes come from a RAM 
>> shortage... I looked at the stack usages, and they look ok, but i 
>> don't know how to check the stack-usage of the interrupt-stack and i 
>> have no idea how to check the heap-usage. Can You give me some hints 
>> on this?
>
> Look on a comment to CDL option CYGNUM_KERNEL_THREADS_IDLE_STACK_SIZE. 
> About memory usage: it seems for me that you can use mallinfo() to 
> check memory usage (refer to stdlib.h). Also, try to enable asserts if 
> you can.
>
> Sergei
>
>> Thanks Oliver
>
>

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