Move reading input stream to specialized socket class.

We always read the same object so how to fill it is the job of specialized class
not a generic method can do that.

Change-Id: Ia262871cec6b7ed3341eb314d5ed6641b8da61e6
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 24 insertions, 0 deletions

diff --git a/CAN-binder/low-can-binding/utils/socketcan-bcm.cpp b/CAN-binder/low-can-binding/utils/socketcan-bcm.cpp
index 835f724..b0148d9 100644
--- a/CAN-binder/low-can-binding/utils/socketcan-bcm.cpp
+++ b/CAN-binder/low-can-binding/utils/socketcan-bcm.cpp
@@ -61,4 +61,28 @@ namespace utils
 		}
 		return socket_;
 	}
+
+	socketcan_bcm_t& operator>>(socketcan_bcm_t& s, can_message_t& cm)
+	{
+		struct {
+			struct bcm_msg_head msg_head;
+			struct can_frame frames;
+		} msg;
+
+		const struct sockaddr_can& addr = s.get_tx_address();
+		socklen_t addrlen = sizeof(addr);
+		struct ifreq ifr;
+
+		ssize_t nbytes = ::recvfrom(s.socket(), &msg, sizeof(msg), 0, (struct sockaddr*)&addr, &addrlen);
+		ifr.ifr_ifindex = addr.can_ifindex;
+		ioctl(s.socket(), SIOCGIFNAME, &ifr);
+
+		DEBUG(binder_interface, "Data available: %i bytes read", (int)nbytes);
+		DEBUG(binder_interface, "read: Found on bus %s:\n id: %X, length: %X, data %02X%02X%02X%02X%02X%02X%02X%02X", ifr.ifr_name, msg.msg_head.can_id, msg.frames.can_dlc,
+			msg.frames.data[0], msg.frames.data[1], msg.frames.data[2], msg.frames.data[3], msg.frames.data[4], msg.frames.data[5], msg.frames.data[6], msg.frames.data[7]);
+
+		cm = ::can_message_t::convert_from_frame(msg.frames , nbytes-sizeof(struct bcm_msg_head));
+
+		return s;
+	}
 }
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