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Fixed failing build when socket.h adds flexible arrays to end of structures.

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This commit is contained in:
Mark K Cowan
2017-11-24 18:38:32 +00:00
parent a1022b0f0c
commit e797d69cb7
1 changed files with 7 additions and 8 deletions
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libuavcan_drivers/linux/include/uavcan_linux/socketcan.hpp
+7 -8
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@@ -219,18 +219,17 @@ class SocketCanIface : public uavcan::ICanIface
iov.iov_base = &sockcan_frame;
iov.iov_len = sizeof(sockcan_frame);
struct Control
{
cmsghdr cm;
std::uint8_t data[sizeof(::timeval)];
};
auto control = Control();
static constexpr size_t ControlSize = sizeof(cmsghdr) + sizeof(::timeval);
using ControlStorage = typename std::aligned_storage<ControlSize>::type;
ControlStorage control_storage;
auto control = reinterpret_cast<std::uint8_t *>(&control_storage);
std::fill(control, control + ControlSize, 0x00);
auto msg = ::msghdr();
msg.msg_iov = &iov;
msg.msg_iovlen = 1;
msg.msg_control = &control;
msg.msg_controllen = sizeof(control);
msg.msg_control = control;
msg.msg_controllen = ControlSize;
const int res = ::recvmsg(fd_, &msg, MSG_DONTWAIT);
if (res <= 0)