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Hi, all I upload the glib-2.0 library from 2.38.2 to 2.44.1, then the cpu usage to 100%. After testing , I find the problem is caused by g_io_add_watch function. Following is the part code about the glib. struct sockaddr_can addr; struct ifreq ifr; int loopback = 0; gint fd; GIOChannel *io; guint ev_id; if (getenv("CANLOOPBACK")) loopback = 1; memset(&addr, 0, sizeof(addr)); memset(&ifr, 0, sizeof(ifr)); fd = socket(PF_CAN, SOCK_RAW, CAN_RAW)
addr.can_family = AF_CAN; strcpy(ifr.ifr_name,”can0”); ioctl(fd, SIOCGIFINDEX, &ifr addr.can_ifindex = ifr.ifr_ifindex; setsockopt(dcan->fd, SOL_CAN_RAW, CAN_RAW_LOOPBACK, &loopback, sizeof(loopback)); bind(dcan->fd, (struct sockaddr *) &addr, sizeof(addr))
io = g_io_channel_unix_new(fd); g_assert(io); g_io_channel_set_encoding(io, NULL, NULL); g_io_channel_set_buffered(io, FALSE); ev_id = g_io_add_watch(io, G_IO_IN, NULL, NULL); / ev_id = g_io_add_watch(io, G_IO_IN, my_function, NULL); If any people know how to solve the problem, or any information may lead to this problem,
please tell me . Thanks very much Neil |
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