X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=CAN-binder%2Flow-can-binding%2Futils%2Fsocketcan-bcm.cpp;h=7323565c0590a0c27bc1dc63b61c02b706b1415c;hb=5d96c27e2679e37bd7354d3c618a4fc3111f137c;hp=d115f00001a6320178e10c728e9795d5ce5a0d2b;hpb=ae74dbcb89f3d471b66e1f1d2fe4bdf33cfff388;p=apps%2Flow-level-can-service.git

diff --git a/CAN-binder/low-can-binding/utils/socketcan-bcm.cpp b/CAN-binder/low-can-binding/utils/socketcan-bcm.cpp
index d115f00..7323565 100644
--- a/CAN-binder/low-can-binding/utils/socketcan-bcm.cpp
+++ b/CAN-binder/low-can-binding/utils/socketcan-bcm.cpp
@@ -19,18 +19,10 @@
 
 #include <net/if.h>
 #include <sys/ioctl.h>
+#include <fcntl.h>
 
 namespace utils
 {
-	/// @brief Construct a default, invalid, socket.
-	socketcan_bcm_t::socketcan_bcm_t()
-		: socketcan_t{}
-	{}
-
-	/// @brief Destruct the socket.
-	socketcan_bcm_t::~socketcan_bcm_t()
-	{}
-
 	/// @brief Connect the socket.
 	/// @return 0 if success.
 	int socketcan_bcm_t::connect(const struct sockaddr* addr, socklen_t len)
@@ -67,7 +59,33 @@ namespace utils
 				ERROR(binder_interface, "%s: Connect failed. %s", __FUNCTION__, strerror(errno));
 				close();
 			}
+			// Needed because of using systemD event loop. See sd_event_add_io manual.
+			fcntl(socketcan_t::socket_, F_SETFL, O_NONBLOCK);
 		}
 		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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