diff options
Diffstat (limited to 'host/lib/usrp/usrp1/io_impl.cpp')
| -rw-r--r-- | host/lib/usrp/usrp1/io_impl.cpp | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/host/lib/usrp/usrp1/io_impl.cpp b/host/lib/usrp/usrp1/io_impl.cpp index 33a04ffe6..a0efa14d1 100644 --- a/host/lib/usrp/usrp1/io_impl.cpp +++ b/host/lib/usrp/usrp1/io_impl.cpp @@ -38,15 +38,29 @@ static const float poll_interval = 0.1; //100ms struct usrp1_send_state { uhd::transport::managed_send_buffer::sptr send_buff; size_t bytes_written; - size_t bytes_free; size_t underrun_poll_samp_count; + + size_t bytes_free() + { + if (send_buff != NULL) + return send_buff->size() - bytes_written; + else + return 0; + } }; struct usrp1_recv_state { uhd::transport::managed_recv_buffer::sptr recv_buff; size_t bytes_read; - size_t bytes_avail; size_t overrun_poll_samp_count; + + size_t bytes_avail() + { + if (recv_buff != NULL) + return recv_buff->size() - bytes_read; + else + return 0; + } }; /*********************************************************************** @@ -113,7 +127,6 @@ bool usrp1_impl::io_impl::get_send_buffer(zero_copy_if::sptr zc_if) if (send_state.send_buff == NULL) return false; - send_state.bytes_free = send_state.send_buff->size(); send_state.bytes_written = 0; } @@ -126,9 +139,9 @@ size_t usrp1_impl::io_impl::copy_convert_send_samps(const void *buff, const io_type_t io_type, otw_type_t otw_type) { - UHD_ASSERT_THROW(send_state.bytes_free % otw_type.get_sample_size() == 0); + UHD_ASSERT_THROW(send_state.bytes_free() % otw_type.get_sample_size() == 0); - size_t samps_free = send_state.bytes_free / otw_type.get_sample_size(); + size_t samps_free = send_state.bytes_free() / otw_type.get_sample_size(); size_t copy_samps = std::min(num_samps - sample_offset, samps_free); const boost::uint8_t *io_mem = @@ -143,7 +156,6 @@ size_t usrp1_impl::io_impl::copy_convert_send_samps(const void *buff, copy_samps); send_state.bytes_written += copy_samps * otw_type.get_sample_size(); - send_state.bytes_free -= copy_samps * otw_type.get_sample_size(); send_state.underrun_poll_samp_count += copy_samps; return copy_samps; @@ -154,7 +166,7 @@ bool usrp1_impl::io_impl::conditional_buff_commit(bool force) if (send_state.bytes_written % 512) return false; - if (force || send_state.bytes_free == 0) { + if (force || send_state.bytes_free() == 0) { send_state.send_buff->commit(send_state.bytes_written); send_state.send_buff = uhd::transport::managed_send_buffer::sptr(); return true; @@ -223,14 +235,13 @@ size_t usrp1_impl::send(const std::vector<const void *> &buffs, **********************************************************************/ bool usrp1_impl::io_impl::get_recv_buffer(zero_copy_if::sptr zc_if) { - if ((recv_state.recv_buff == NULL) || (recv_state.bytes_avail == 0)) { + if ((recv_state.recv_buff == NULL) || (recv_state.bytes_avail() == 0)) { recv_state.recv_buff = zc_if->get_recv_buff(); if (recv_state.recv_buff == NULL) return false; recv_state.bytes_read = 0; - recv_state.bytes_avail = recv_state.recv_buff->size(); } return true; @@ -242,9 +253,9 @@ size_t usrp1_impl::io_impl::copy_convert_recv_samps(void *buff, const io_type_t io_type, otw_type_t otw_type) { - UHD_ASSERT_THROW(recv_state.bytes_avail % otw_type.get_sample_size() == 0); + UHD_ASSERT_THROW(recv_state.bytes_avail() % otw_type.get_sample_size() == 0); - size_t samps_avail = recv_state.bytes_avail / otw_type.get_sample_size(); + size_t samps_avail = recv_state.bytes_avail() / otw_type.get_sample_size(); size_t copy_samps = std::min(num_samps - sample_offset, samps_avail); const boost::uint8_t *otw_mem = @@ -259,7 +270,6 @@ size_t usrp1_impl::io_impl::copy_convert_recv_samps(void *buff, copy_samps); recv_state.bytes_read += copy_samps * otw_type.get_sample_size(); - recv_state.bytes_avail -= copy_samps * otw_type.get_sample_size(); recv_state.overrun_poll_samp_count += copy_samps; return copy_samps; |