#include <gr_runtime_types.h>
Go to the source code of this file.
Classes | |
class | gr_buffer |
Single writer, multiple reader fifo. More... | |
class | gr_buffer_reader |
How we keep track of the readers of a gr_buffer. More... | |
Functions | |
gr_buffer_sptr | gr_make_buffer (int nitems, size_t sizeof_item) |
Allocate a buffer that holds at least nitems of size sizeof_item . | |
gr_buffer_reader_sptr | gr_buffer_add_reader (gr_buffer_sptr buf, int nzero_preload) |
create a new gr_buffer_reader and attach it to buffer buf | |
long | gr_buffer_ncurrently_allocated () |
returns # of gr_buffers currently allocated | |
long | gr_buffer_reader_ncurrently_allocated () |
returns # of gr_buffer_readers currently allocated |
gr_buffer_reader_sptr gr_buffer_add_reader | ( | gr_buffer_sptr | buf, | |
int | nzero_preload | |||
) |
create a new gr_buffer_reader and attach it to buffer buf
nzero_preload | -- number of zero items to "preload" into buffer. |
long gr_buffer_ncurrently_allocated | ( | ) |
returns # of gr_buffers currently allocated
long gr_buffer_reader_ncurrently_allocated | ( | ) |
returns # of gr_buffer_readers currently allocated
gr_buffer_sptr gr_make_buffer | ( | int | nitems, | |
size_t | sizeof_item | |||
) |
Allocate a buffer that holds at least nitems
of size sizeof_item
.
The total size of the buffer will be rounded up to a system dependent boundary. This is typically the system page size, but under MS windows is 64KB.