{
int fd = -1;
- TFR(fd = qemu_open_old(src, flags, 0666));
+ fd = RETRY_ON_EINTR(qemu_open_old(src, flags, 0666));
if (fd == -1) {
error_setg_file_open(errp, errno, src);
}
filename_in = g_strdup_printf("%s.in", filename);
filename_out = g_strdup_printf("%s.out", filename);
- TFR(fd_in = qemu_open_old(filename_in, O_RDWR | O_BINARY));
- TFR(fd_out = qemu_open_old(filename_out, O_RDWR | O_BINARY));
+ fd_in = RETRY_ON_EINTR(qemu_open_old(filename_in, O_RDWR | O_BINARY));
+ fd_out = RETRY_ON_EINTR(qemu_open_old(filename_out, O_RDWR | O_BINARY));
g_free(filename_in);
g_free(filename_out);
if (fd_in < 0 || fd_out < 0) {
if (fd_out >= 0) {
close(fd_out);
}
- TFR(fd_in = fd_out = qemu_open_old(filename, O_RDWR | O_BINARY));
+ fd_in = fd_out = RETRY_ON_EINTR(
+ qemu_open_old(filename, O_RDWR | O_BINARY)
+ );
if (fd_in < 0) {
error_setg_file_open(errp, errno, filename);
return;
#define ESHUTDOWN 4099
#endif
-#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
+#define RETRY_ON_EINTR(expr) \
+ (__extension__ \
+ ({ typeof(expr) __result; \
+ do { \
+ __result = (expr); \
+ } while (__result == -1 && errno == EINTR); \
+ __result; }))
/* time_t may be either 32 or 64 bits depending on the host OS, and
* can be either signed or unsigned, so we can't just hardcode a
} else {
snprintf(dname, sizeof dname, "/dev/tap%d", i);
}
- TFR(fd = open(dname, O_RDWR));
+ fd = RETRY_ON_EINTR(open(dname, O_RDWR));
if (fd >= 0) {
break;
}
int fd, s, ret;
struct ifreq ifr;
- TFR(fd = open(PATH_NET_TAP, O_RDWR));
+ fd = RETRY_ON_EINTR(open(PATH_NET_TAP, O_RDWR));
if (fd < 0) {
error_setg_errno(errp, errno, "could not open %s", PATH_NET_TAP);
return -1;
if (ifname[0] != '\0') {
char dname[100];
snprintf(dname, sizeof dname, "/dev/%s", ifname);
- TFR(fd = open(dname, O_RDWR));
+ fd = RETRY_ON_EINTR(open(dname, O_RDWR));
if (fd < 0 && errno != ENOENT) {
error_setg_errno(errp, errno, "could not open %s", dname);
return -1;
int len = sizeof(struct virtio_net_hdr);
unsigned int features;
- TFR(fd = open(PATH_NET_TUN, O_RDWR));
+ fd = RETRY_ON_EINTR(open(PATH_NET_TUN, O_RDWR));
if (fd < 0) {
error_setg_errno(errp, errno, "could not open %s", PATH_NET_TUN);
return -1;
if( ip_fd )
close(ip_fd);
- TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
+ ip_fd = RETRY_ON_EINTR(open("/dev/udp", O_RDWR, 0));
if (ip_fd < 0) {
error_setg(errp, "Can't open /dev/ip (actually /dev/udp)");
return -1;
}
- TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
+ tap_fd = RETRY_ON_EINTR(open("/dev/tap", O_RDWR, 0));
if (tap_fd < 0) {
error_setg(errp, "Can't open /dev/tap");
return -1;
if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
error_report("Can't assign new interface");
- TFR(if_fd = open("/dev/tap", O_RDWR, 0));
+ if_fd = RETRY_ON_EINTR(open("/dev/tap", O_RDWR, 0));
if (if_fd < 0) {
error_setg(errp, "Can't open /dev/tap (2)");
return -1;
if (ioctl (ip_fd, I_PUSH, "arp") < 0)
error_report("Can't push ARP module (3)");
/* Open arp_fd */
- TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
+ arp_fd = RETRY_ON_EINTR(open("/dev/tap", O_RDWR, 0));
if (arp_fd < 0)
error_report("Can't open %s", "/dev/tap");
vnet_hdr_required = 0;
}
- TFR(fd = tap_open(ifname, ifname_sz, vnet_hdr, vnet_hdr_required,
+ fd = RETRY_ON_EINTR(tap_open(ifname, ifname_sz, vnet_hdr, vnet_hdr_required,
mq_required, errp));
if (fd < 0) {
return -1;
error_report("not able to chdir to /: %s", strerror(errno));
exit(1);
}
- TFR(fd = qemu_open_old("/dev/null", O_RDWR));
+ fd = RETRY_ON_EINTR(qemu_open_old("/dev/null", O_RDWR));
if (fd == -1) {
exit(1);
}
#ifndef _WIN32
pid_t pid;
- TFR(pid = waitpid(s->qemu_pid, &s->wstatus, 0));
+ pid = RETRY_ON_EINTR(waitpid(s->qemu_pid, &s->wstatus, 0));
assert(pid == s->qemu_pid);
#else
DWORD ret;