int at_wait_job(int job_num) {
struct at_job cur;
int ret;
cur.job_num = job_num;
if ((ret = link_del(&cur, tim_link)) == 0)
num_bit[job_num] = 0;
return ret;
}
/**
* delMacvtap:
* @ifname : The name of the macvtap interface
* @linkdev: The interface name of the NIC to connect to the external bridge
* @virtPortProfile: pointer to object holding the virtual port profile data
*
* Delete an interface given its name. Disassociate
* it with the switch if port profile parameters
* were provided.
*/
void
delMacvtap(const char *ifname,
const unsigned char *macaddr,
const char *linkdev,
virVirtualPortProfileParamsPtr virtPortProfile)
{
if (ifname) {
vpDisassociatePortProfileId(ifname, macaddr,
linkdev,
virtPortProfile);
link_del(ifname);
}
}
int pomme_rpcs_distroy(pomme_rpcs_t *rpcs)
{
int ret = 0;
assert( rpcs != NULL );
pomme_func_t *pos = NULL;
pomme_link_t *head = &rpcs->func;
list_for_each_entry(pos, head, next)
{
link_del(&pos->next);
/* the pomme_arg_t->args[i]->data is NULL in func list*/
POMME_ARG_F(pos->arg);
free(pos);
}
static int clean_node(struct at_job *cur) {
struct at_job tmp;
if (cur->job_rep_time == REP_FOREVER || --cur->job_rep_time > 0) {
if (cur->job_org_val < next_alm)
sub_each(cur->job_org_val);
memcpy(&tmp, cur, sizeof(*cur));
tmp.job_val = cur->job_org_val;
if ((tmp.job_arg = malloc(tmp.job_arg_size)) == NULL)
return -1;
memcpy(tmp.job_arg, cur->job_arg, cur->job_arg_size);
link_add(&tmp, tim_link);
link_del(cur, tim_link);
} else
cur->job_sta = AT_INVAL;
return 0;
}
int main(void)
{
struct student *head;
struct student *p0;
int num;
printf("\n");
printf("\n");
printf("\n/////////学生信息系统/////////\n");
head=link_creat();
link_printf(head);
printf("输入要删除的学号\n");
scanf("%d",&num);
printf("..........\n");
head=link_del(head,num);
p0=(struct student *)malloc(LEN);
printf("请输入学号 名字 性别 年纪\n");
scanf("%ld %s %c %d",&p0->num,p0->name,&p0->sex,&p0->age);
head=link_insert(head,p0);
link_printf(head);
free(p0);
return 0;
}
/**
* openMacvtapTap:
* Create an instance of a macvtap device and open its tap character
* device.
* @tgifname: Interface name that the macvtap is supposed to have. May
* be NULL if this function is supposed to choose a name
* @macaddress: The MAC address for the macvtap device
* @linkdev: The interface name of the NIC to connect to the external bridge
* @mode: int describing the mode for 'bridge', 'vepa' or 'private'.
* @vnet_hdr: 1 to enable IFF_VNET_HDR, 0 to disable it
* @vmuuid: The UUID of the VM the macvtap belongs to
* @virtPortProfile: pointer to object holding the virtual port profile data
* @res_ifname: Pointer to a string pointer where the actual name of the
* interface will be stored into if everything succeeded. It is up
* to the caller to free the string.
*
* Returns file descriptor of the tap device in case of success,
* negative value otherwise with error reported.
*
*/
int
openMacvtapTap(const char *tgifname,
const unsigned char *macaddress,
const char *linkdev,
int mode,
int vnet_hdr,
const unsigned char *vmuuid,
virVirtualPortProfileParamsPtr virtPortProfile,
char **res_ifname)
{
const char *type = "macvtap";
int c, rc;
char ifname[IFNAMSIZ];
int retries, do_retry = 0;
uint32_t macvtapMode = macvtapModeFromInt(mode);
const char *cr_ifname;
int ifindex;
*res_ifname = NULL;
if (tgifname) {
if(ifaceGetIndex(false, tgifname, &ifindex) == 0) {
if (STRPREFIX(tgifname,
MACVTAP_NAME_PREFIX)) {
goto create_name;
}
virReportSystemError(errno,
_("Interface %s already exists"), tgifname);
return -1;
}
cr_ifname = tgifname;
rc = link_add(type, macaddress, 6, tgifname, linkdev,
macvtapMode, &do_retry);
if (rc)
return -1;
} else {
create_name:
retries = 5;
for (c = 0; c < 8192; c++) {
snprintf(ifname, sizeof(ifname), MACVTAP_NAME_PATTERN, c);
if (ifaceGetIndex(false, ifname, &ifindex) == ENODEV) {
rc = link_add(type, macaddress, 6, ifname, linkdev,
macvtapMode, &do_retry);
if (rc == 0)
break;
if (do_retry && --retries)
continue;
return -1;
}
}
cr_ifname = ifname;
}
if (vpAssociatePortProfileId(cr_ifname,
macaddress,
linkdev,
virtPortProfile,
vmuuid) != 0) {
rc = -1;
goto link_del_exit;
}
rc = ifaceUp(cr_ifname);
if (rc != 0) {
virReportSystemError(errno,
_("cannot 'up' interface %s -- another "
"macvtap device may be 'up' and have the same "
"MAC address"),
cr_ifname);
rc = -1;
goto disassociate_exit;
}
rc = openTap(cr_ifname, 10);
if (rc >= 0) {
if (configMacvtapTap(rc, vnet_hdr) < 0) {
close(rc);
rc = -1;
goto disassociate_exit;
}
*res_ifname = strdup(cr_ifname);
} else
goto disassociate_exit;
return rc;
disassociate_exit:
vpDisassociatePortProfileId(cr_ifname,
macaddress,
linkdev,
virtPortProfile);
link_del_exit:
link_del(cr_ifname);
return rc;
}
