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-rw-r--r--host/lib/transport/libusb1_base.cpp13
-rw-r--r--host/lib/transport/libusb1_zero_copy.cpp60
-rw-r--r--host/lib/transport/udp_zero_copy.cpp9
3 files changed, 60 insertions, 22 deletions
diff --git a/host/lib/transport/libusb1_base.cpp b/host/lib/transport/libusb1_base.cpp
index 9635d34b0..f92117a9e 100644
--- a/host/lib/transport/libusb1_base.cpp
+++ b/host/lib/transport/libusb1_base.cpp
@@ -71,7 +71,18 @@ private:
timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 100000;
- libusb_handle_events_timeout(context, &tv);
+ int ret = libusb_handle_events_timeout(context, &tv);
+ switch (ret)
+ {
+ case LIBUSB_SUCCESS:
+ case LIBUSB_ERROR_TIMEOUT:
+ break;
+ case LIBUSB_ERROR_NO_DEVICE:
+ throw uhd::io_error(libusb_strerror(LIBUSB_ERROR_NO_DEVICE));
+ default:
+ UHD_MSG(error) << __FUNCTION__ << ": " << libusb_strerror((libusb_error)ret) << std::endl;
+ break;
+ }
}
};
diff --git a/host/lib/transport/libusb1_zero_copy.cpp b/host/lib/transport/libusb1_zero_copy.cpp
index 465adc95e..fe0eb9bfd 100644
--- a/host/lib/transport/libusb1_zero_copy.cpp
+++ b/host/lib/transport/libusb1_zero_copy.cpp
@@ -148,15 +148,16 @@ public:
UHD_INLINE void submit(void)
{
- _lut->length = (_is_recv)? _frame_size : size(); //always set length
+ _lut->length = (_is_recv)? _frame_size : size(); //always set length
#ifdef UHD_TXRX_DEBUG_PRINTS
result.start_time = boost::get_system_time().time_of_day().total_microseconds();
result.buff_num = num();
result.is_recv = _is_recv;
#endif
const int ret = libusb_submit_transfer(_lut);
- if (ret != 0) throw uhd::usb_error(ret, str(boost::format(
- "usb %s submit failed: %s") % _name % libusb_error_name(ret)));
+ if (ret != LIBUSB_SUCCESS)
+ throw uhd::runtime_error(str(boost::format("usb %s submit failed: %s")
+ % _name % libusb_strerror((libusb_error)ret)));
}
template <typename buffer_type>
@@ -164,8 +165,9 @@ public:
{
if (wait_for_completion(timeout))
{
- if (result.status != LIBUSB_TRANSFER_COMPLETED) throw uhd::runtime_error(str(boost::format(
- "usb %s transfer status: %d") % _name % int(result.status)));
+ if (result.status != LIBUSB_TRANSFER_COMPLETED)
+ throw uhd::runtime_error(str(boost::format("usb %s transfer status: %d")
+ % _name % libusb_error_name(result.status)));
result.completed = 0;
return make(reinterpret_cast<buffer_type *>(this), _lut->buffer, (_is_recv)? result.actual_length : _frame_size);
}
@@ -219,7 +221,8 @@ public:
_num_frames(num_frames),
_frame_size(frame_size),
_buffer_pool(buffer_pool::make(_num_frames, _frame_size)),
- _enqueued(_num_frames), _released(_num_frames)
+ _enqueued(_num_frames), _released(_num_frames),
+ _status(RUNNING)
{
const bool is_recv = (endpoint & 0x80) != 0;
const std::string name = str(boost::format("%s%d") % ((is_recv)? "rx" : "tx") % int(endpoint & 0x7f));
@@ -304,18 +307,24 @@ public:
UHD_INLINE typename buffer_type::sptr get_buff(double timeout)
{
typename buffer_type::sptr buff;
- libusb_zero_copy_mb *front = NULL;
- boost::mutex::scoped_lock lock(_mutex);
+
+ if (_status == ERROR)
+ return buff;
+
+ // Serialize access to buffers
+ boost::mutex::scoped_lock get_buff_lock(_get_buff_mutex);
+
+ boost::mutex::scoped_lock queue_lock(_queue_mutex);
if (_enqueued.empty())
{
- _cond.timed_wait(lock, boost::posix_time::microseconds(long(timeout*1e6)));
+ _buff_ready_cond.timed_wait(queue_lock, boost::posix_time::microseconds(long(timeout*1e6)));
}
if (_enqueued.empty()) return buff;
- front = _enqueued.front();
+ libusb_zero_copy_mb *front = _enqueued.front();
- lock.unlock();
+ queue_lock.unlock();
buff = front->get_new<buffer_type>(timeout);
- lock.lock();
+ queue_lock.lock();
if (buff) _enqueued.pop_front();
this->submit_what_we_can();
@@ -333,28 +342,39 @@ private:
buffer_pool::sptr _buffer_pool;
std::vector<boost::shared_ptr<libusb_zero_copy_mb> > _mb_pool;
- boost::mutex _mutex;
- boost::condition_variable _cond;
+ boost::mutex _queue_mutex;
+ boost::condition_variable _buff_ready_cond;
+ boost::mutex _get_buff_mutex;
//! why 2 queues? there is room in the future to have > N buffers but only N in flight
boost::circular_buffer<libusb_zero_copy_mb *> _enqueued, _released;
+ enum {RUNNING,ERROR} _status;
+
void enqueue_buffer(libusb_zero_copy_mb *mb)
{
- boost::mutex::scoped_lock l(_mutex);
+ boost::mutex::scoped_lock l(_queue_mutex);
_released.push_back(mb);
this->submit_what_we_can();
- l.unlock();
- _cond.notify_one();
+ _buff_ready_cond.notify_one();
}
void submit_what_we_can(void)
{
+ if (_status == ERROR)
+ return;
while (not _released.empty() and not _enqueued.full())
{
- _released.front()->submit();
- _enqueued.push_back(_released.front());
- _released.pop_front();
+ try {
+ _released.front()->submit();
+ _enqueued.push_back(_released.front());
+ _released.pop_front();
+ }
+ catch (uhd::runtime_error& e)
+ {
+ _status = ERROR;
+ throw e;
+ }
}
}
diff --git a/host/lib/transport/udp_zero_copy.cpp b/host/lib/transport/udp_zero_copy.cpp
index adc7d5585..70fb5b552 100644
--- a/host/lib/transport/udp_zero_copy.cpp
+++ b/host/lib/transport/udp_zero_copy.cpp
@@ -87,7 +87,10 @@ public:
if (wait_for_recv_ready(_sock_fd, timeout)){
_len = ::recv(_sock_fd, (char *)_mem, _frame_size, 0);
- UHD_ASSERT_THROW(_len > 0); // TODO: Handle case of recv error
+ if (_len == 0)
+ throw uhd::io_error("socket closed");
+ if (_len < 0)
+ throw uhd::io_error(str(boost::format("recv error on socket: %s") % strerror(errno)));
index++; //advances the caller's buffer
return make(this, _mem, size_t(_len));
}
@@ -126,6 +129,10 @@ public:
boost::this_thread::sleep(boost::posix_time::microseconds(1));
continue; //try to send again
}
+ if (ret == -1)
+ {
+ throw uhd::io_error(str(boost::format("send error on socket: %s") % strerror(errno)));
+ }
UHD_ASSERT_THROW(ret == ssize_t(size()));
}
_claimer.release();
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 11:55:36 +0000