experiment8.c

   1 #include <string.h>
   2 #include <time.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <assert.h>
   6 #include <errno.h>
   7 #include <inttypes.h>
   8
   9 #include <libvirt/libvirt.h>
  10
  11 virConnectPtr conn = NULL; /* the hypervisor connection */
  12
  13 int main(int argc, char*argv[]) {
  14 //    xenUnifiedPrivatePtr priv;
  15     char *xenbus_path, s[256], *params, *param_pool, *param_volume;
  16     unsigned int len = 0;
  17     virStoragePoolPtr pool;
  18     virStorageVolPtr volume;
  19
  20
  21     /* NULL means connect to local Xen hypervisor */
  22     conn = virConnectOpenReadOnly(NULL);
  23     if (conn == NULL) {
  24         fprintf(stderr, "Failed to connect to hypervisor\n");
  25         return -1;
  26     }
  27
  28     xenbus_path = getenv ("XENBUS_PATH");
  29
  30     if (xenbus_path == NULL) {
  31         fprintf(stderr, "No XENBUS_PATH so fail\n");
  32         return -1;
  33     }
  34
  35 /*    priv = (xenUnifiedPrivatePtr) conn->privateData;
  36
  37     if (priv->xshandle == NULL) {
  38         fprintf(stderr, "No Xen connection so fail\n");
  39         return -1;
  40     }
  41
  42     snprintf(s, 255, "%s/params", xenbus_path);
  43     s[255] = '\0';
  44
  45     params = xs_read(priv->xshandle, 0, &s[0], &len);*/
  46
  47     param_pool   = &params[2];
  48     param_volume = strchr(param_pool, '/');
  49
  50     if (param_volume == NULL) {
  51         fprintf(stderr, "No Volume found\n");
  52         return -1;
  53     }
  54
  55     param_volume = '\0';
  56     param_volume++;
  57
  58     printf("pool: %s, volume: %s\n", param_pool, param_volume);
  59
  60     pool = virStoragePoolLookupByName(conn, param_pool);
  61
  62     if (pool == NULL) {
  63         fprintf(stderr, "Pool doesn't exist\n");
  64         return -1;
  65     }
  66
  67     volume = virStorageVolLookupByName(pool, param_volume);
  68
  69     if (volume == NULL) {
  70         fprintf(stderr, "Volume doesn't exist\n");
  71         return -1;
  72     }
  73
  74     printf("%\n\n%s",  virStorageVolGetKey(volume), virStorageVolGetXMLDesc(volume, 0));
  75
  76     free(params);
  77     virStoragePoolFree(pool);
  78     virStorageVolFree(volume);
  79     virConnectClose(conn);
  80
  81     return 0;
  82 }