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* include/libxen.h src/libxen.c src/libxen_sym.version: adding

xenConnectListDomains() to list active domains
* src/xensh.c: integrated a basic test for xenConnectListDomains()
Daniel
This commit is contained in:
Daniel Veillard 2005-12-02 14:16:21 +00:00
parent 37ecc62443
commit 79b43459ca
5 changed files with 94 additions and 5 deletions

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@ -1,3 +1,9 @@
Fri Dec 2 15:15:26 CET 2005 Daniel Veillard <veillard@redhat.com>
* include/libxen.h src/libxen.c src/libxen_sym.version: adding
xenConnectListDomains() to list active domains
* src/xensh.c: integrated a basic test for xenConnectListDomains()
Fri Dec 2 13:10:04 CET 2005 Daniel Veillard <veillard@redhat.com>
* configure.in src/Makefile.am: more warnings from compiler and

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@ -65,6 +65,13 @@ xenConnectPtr xenConnectOpenReadOnly (const char *name);
int xenConnectClose (xenConnectPtr conn);
unsigned long xenConnectGetVersion (xenConnectPtr conn);
/*
* Gather list of running domains
*/
int xenConnectListDomains (xenConnectPtr conn,
int *ids,
int maxids);
/*
* Domain creation and destruction
*/

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@ -122,7 +122,6 @@ failed:
xenConnectPtr
xenConnectOpenReadOnly(const char *name) {
xenConnectPtr ret = NULL;
int handle = -1;
struct xs_handle *xshandle = NULL;
/* we can only talk to the local Xen supervisor ATM */
@ -205,6 +204,56 @@ unsigned long
xenConnectGetVersion(xenConnectPtr conn) {
if (conn == NULL)
return(-1);
TODO
return(-1);
}
/**
* xenConnectListDomains:
* @conn: pointer to the hypervisor connection
* @ids: array to collect the list of IDs of active domains
* @maxids: size of @ids
*
* Collect the list of active domains, and store their ID in @maxids
*
* Returns the number of domain found or -1 in case of error
*/
int
xenConnectListDomains(xenConnectPtr conn, int *ids, int maxids) {
struct xs_transaction_handle* t;
int ret = -1;
unsigned int num, i;
long id;
char **idlist = NULL, *endptr;
if ((conn == NULL) || (conn->magic != XEN_CONNECT_MAGIC) ||
(ids == NULL) || (maxids <= 0))
return(-1);
t = xs_transaction_start(conn->xshandle);
if (t == NULL)
goto done;
idlist = xs_directory(conn->xshandle, t, "/local/domain", &num);
if (idlist == NULL)
goto done;
for (ret = 0,i = 0;(i < num) && (ret < maxids);i++) {
id = strtol(idlist[i], &endptr, 10);
if ((endptr == idlist[i]) || (*endptr != 0)) {
ret = -1;
goto done;
}
ids[ret++] = (int) id;
}
done:
if (t != NULL)
xs_transaction_end(conn->xshandle, t, 0);
if (idlist != NULL)
free(idlist);
return(ret);
}
/**
@ -260,7 +309,6 @@ xenDomainLookupByName(xenConnectPtr conn, const char *name) {
static char *
xenConnectDoStoreQuery(xenConnectPtr conn, const char *path) {
struct xs_transaction_handle* t;
char s[256];
char *ret = NULL;
unsigned int len = 0;

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@ -5,6 +5,7 @@
xenConnectClose;
xenConnectGetVersion;
xenDomainCreateLinux;
xenConnectListDomains;
xenDomainLookupByName;
xenDomainLookupByID;
xenDomainDestroy;

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@ -13,12 +13,19 @@
#include <unistd.h>
#include <sys/types.h>
#define MAX_DOM 100
int errcode = 0;
xenConnectPtr conn;
xenDomainPtr dom0;
int ids[MAX_DOM];
static void printDomain(xenDomainPtr dom) {
printf("id %d: name %s\n", xenDomainGetID(dom), xenDomainGetName(dom));
}
int main(int argc, char **argv) {
int ret;
int ret, i;
xenDomainPtr dom;
if (getuid() == 0) {
conn = xenConnectOpen(NULL);
@ -36,9 +43,29 @@ int main(int argc, char **argv) {
errcode = 2;
goto done;
}
printf("Dom0: name %s, id %d\n", xenDomainGetName(dom0),
xenDomainGetID(dom0));
printf("Dom0: ");
printDomain(dom0);
ret = xenConnectListDomains(conn, &ids[0], MAX_DOM);
if (ret < 0) {
fprintf(stderr, "Failed to list active domains\n");
errcode = 3;
goto done;
}
printf("Found %d more active domains\n", ret - 1);
for (i = 0;i < ret;i++) {
if (ids[i] == 0)
continue;
printf(" ");
dom = xenDomainLookupByID(conn, ids[i]);
if (dom == NULL) {
printf("domain %d disapeared\n", ids[i]);
} else {
printDomain(dom);
}
}
done:
if (conn != NULL) {
ret = xenConnectClose(conn);