On Sat, Aug 20, 2005 at 03:10:05PM -0700, Ges wrote: > Hi, > > I am a bit confused about where the buffer allocation > is taking place for each block in a flowgraph. > > In flowgraph.py, the _assign_buffers() function, > creates buffer and attaches to each block's detail.
_assign_buffers is where the allocation takes place. > In single threaded scheduler's main_loop() fucntion, > vectors of DEFAULT_CAPACITY are being created, which > are being passed to the general_work() function of > each block. main_loop is creating vectors of pointers (that point into the allocated buffers). DEFAULT_CAPACITY doesn't really have anything to do with anything. The vectors of pointers are resized prior to each use. > I am certainly missing something here or I have > misunderstood something. Please help. > > If you can give me a quick run of exactly how buffers > are allocated for each block (code-pointers) that > would help. You have it right. The buffers are assigned in flow_graph._assign_buffers. The buffer is allocated in buffer_sizes.allocate: return buffer (nitems, item_size) returns a python object that wraps the underlying C++ gr_buffer instance. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
