*Hi,
*
*I have a block which copies a block of input to output. The constructor is
defined as shown below.
*
#######################################################################
copy_bb_impl::copy_bb_impl(int block_length)
{
d_block_length = block_length;
set_input_signature(gr::io_signature::make(1, 1, sizeof(char) *
d_block_length));
set_output_signature(gr::io_signature::make(1, 1, sizeof(char) *
d_block_length));
}
#######################################################################
*make runs. Given below is the output for ctest -V*
----------------------------------------------------------------------------------------------------------------------------
manu@iota build $ ctest -V
UpdateCTestConfiguration from
:/home/manu/gr-ldpc/build/DartConfiguration.tcl
UpdateCTestConfiguration from
:/home/manu/gr-ldpc/build/DartConfiguration.tcl
Test project /home/manu/gr-ldpc/build
Constructing a list of tests
Done constructing a list of tests
Checking test dependency graph...
Checking test dependency graph end
test 1
Start 1: test_ldpc
1: Test command: /bin/sh "/home/manu/gr-ldpc/build/lib/test_ldpc_test.sh"
1: Test timeout computed to be: 9.99988e+06
1:
1:
1/2 Test #1: test_ldpc ........................ Passed 0.00 sec
test 2
Start 2: qa_copy_bb
2: Test command: /bin/sh
"/home/manu/gr-ldpc/build/python/qa_copy_bb_test.sh"
2: Test timeout computed to be: 9.99988e+06
2: gr::vmcircbuf_sysv_shm: shmget(1): Invalid argument
2: gr::buffer::allocate_buffer: failed to allocate buffer of size 5894500 KB
2: terminate called after throwing an instance of 'std::bad_alloc'
2: what(): std::bad_alloc
2: Aborted
2/2 Test #2: qa_copy_bb .......................***Failed 0.22 sec
50% tests passed, 1 tests failed out of 2
Total Test time (real) = 0.23 sec
The following tests FAILED:
2 - qa_copy_bb (Failed)
Errors while running CTest
---------------------------------------------------------------------------------------------------------------------------------
*While if I define the constructor as given below, ctest run without
failures.*
#########################################################################
copy_bb_impl::copy_bb_impl(int block_length)
: gr::sync_block("copy_bb",
gr::io_signature::make(1, 1, sizeof(char) * block_length),
gr::io_signature::make(1, 1, sizeof(char) * block_length)),
d_block_length(block_length)
{
}
#########################################################################
*Any suggestion why the first constructor is running into errors?*
On Sun, Sep 8, 2013 at 3:02 PM, Manu T S <[email protected]> wrote:
> Hey Marcus,
>
> Thanks a lot.
>
>
> On Sun, Sep 8, 2013 at 1:28 PM, Marcus Müller <[email protected]> wrote:
>
>> Hi Manu!
>>
>> Suppose I don't know the block size before hand, and I want to pass a
>>> parameter "x" to toe constructor such that block size can be obtained from
>>> x using certain computation (that will be defined inside the constructor).
>>> Can I do this? If so how?
>>>
>> Yes, that's possible *inside the constructor only*. See the
>> gr::basic_block::set_{in,out}**put_signature(gr::io_**signature::sptr)
>> doxygen.
>
>
> That worked!
>
>
>>
>> When I add a new block "encoder", to the module "ldpc", modtool add
>>> files "include/ldpc/encoder.h", "lib/encoder_impl.cc", and
>>> "lib/encoder_impl.h". And the work function is to be declared and defined
>>> in encoder_impl.h and encoder_impl.cc respectively. Consider that I have
>>> the function "encode" defined and declared in ldpc.h and ldpc.cc
>>> respectively. ldpc.* does not define any signal processing block, so I
>>> don't add them using modtool. But they are required as they have the
>>> definition for the "encode" function and inside the work function in
>>> encoder_impl.cc I just want to call the encode function defined inside this
>>> ldpc class.
>>>
>>> Am I supposed to put ldpc.h in inlclude/ldpc/ and ldpc.cc in lib/? Or
>>> should I put both of them inside lib/ ? Which section of CMakeLists.txt am
>>> I supposed to modify?
>>>
>> Yes, that would be the correct structure.
>> Just add ldpc.cc to lib/CMakeLists.txt:
>>
>
> It is not clear which option you meant. Both ldpc.h and ldpc.cc inside lib
> *OR* should I put .h inside include/ldpc/ ?
>
>
>>
>> list_append (APPEND projectname_sources
>> encoder_impl.cc
>> ...
>> ldpc.cc )
>>
>> Happy Hacking!
>>
>> PS:You should also the include_directuries(${library_**INCLUDE_DIR}) for
>> each external library you use to that file if you haven't done so; same
>> applies for target_link_libraries)
>>
>> ______________________________**_________________
>> Discuss-gnuradio mailing list
>> [email protected]
>> https://lists.gnu.org/mailman/**listinfo/discuss-gnuradio<https://lists.gnu.org/mailman/listinfo/discuss-gnuradio>
>>
>
>
>
> --
> Manu T S
>
--
Manu T S
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