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libvirt-snapshot.c
280 lines (237 loc) · 9.33 KB
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libvirt-snapshot.c
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/*
* libvirt-snapshot.c: The PHP bindings to libvirt domain snapshot API
*
* See COPYING for the license of this software
*/
#include <config.h>
#include <libvirt/libvirt.h>
#include "libvirt-php.h"
#include "libvirt-snapshot.h"
DEBUG_INIT("snapshot");
int le_libvirt_snapshot;
void php_libvirt_snapshot_dtor(zend_resource *rsrc)
{
php_libvirt_snapshot *snapshot = (php_libvirt_snapshot *)rsrc->ptr;
int rv = 0;
if (snapshot != NULL) {
if (snapshot->snapshot != NULL) {
if (!check_resource_allocation(NULL, INT_RESOURCE_SNAPSHOT, snapshot->snapshot)) {
snapshot->snapshot = NULL;
efree(snapshot);
return;
}
rv = virDomainSnapshotFree(snapshot->snapshot);
if (rv != 0) {
DPRINTF("%s: virDomainSnapshotFree(%p) returned %d\n", __FUNCTION__, snapshot->snapshot, rv);
php_error_docref(NULL, E_WARNING, "virDomainSnapshotFree failed with %i on destructor: %s", rv, LIBVIRT_G(last_error));
} else {
DPRINTF("%s: virDomainSnapshotFree(%p) completed successfully\n", __FUNCTION__, snapshot->snapshot);
resource_change_counter(INT_RESOURCE_SNAPSHOT, snapshot->domain->conn->conn, snapshot->snapshot, 0);
}
snapshot->snapshot = NULL;
}
efree(snapshot);
}
}
/*
* Function name: libvirt_domain_has_current_snapshot
* Since version: 0.4.1(-2)
* Description: Function is used to get the information whether domain has the current snapshot
* Arguments: @res [resource]: libvirt domain resource
* @flags [int]: libvirt snapshot flags
* Returns: TRUE is domain has the current snapshot, otherwise FALSE (you may need to check for error using libvirt_get_last_error())
*/
PHP_FUNCTION(libvirt_domain_has_current_snapshot)
{
php_libvirt_domain *domain = NULL;
zval *zdomain;
int retval;
zend_long flags = 0;
GET_DOMAIN_FROM_ARGS("r|l", &zdomain, &flags);
retval = virDomainHasCurrentSnapshot(domain->domain, flags);
if (retval <= 0)
RETURN_FALSE;
RETURN_TRUE;
}
/*
* Function name: libvirt_domain_snapshot_lookup_by_name
* Since version: 0.4.1(-2)
* Description: This functions is used to lookup for the snapshot by it's name
* Arguments: @res [resource]: libvirt domain resource
* @name [string]: name of the snapshot to get the resource
* @flags [int]: libvirt snapshot flags
* Returns: domain snapshot resource
*/
PHP_FUNCTION(libvirt_domain_snapshot_lookup_by_name)
{
php_libvirt_domain *domain = NULL;
zval *zdomain;
size_t name_len;
char *name = NULL;
zend_long flags = 0;
php_libvirt_snapshot *res_snapshot;
virDomainSnapshotPtr snapshot = NULL;
GET_DOMAIN_FROM_ARGS("rs|l", &zdomain, &name, &name_len, &flags);
if ((name == NULL) || (name_len < 1))
RETURN_FALSE;
snapshot=virDomainSnapshotLookupByName(domain->domain, name, flags);
if (snapshot == NULL)
RETURN_FALSE;
res_snapshot = (php_libvirt_snapshot *)emalloc(sizeof(php_libvirt_snapshot));
res_snapshot->domain = domain;
res_snapshot->snapshot = snapshot;
DPRINTF("%s: returning %p\n", PHPFUNC, res_snapshot->snapshot);
resource_change_counter(INT_RESOURCE_SNAPSHOT, domain->conn->conn, res_snapshot->snapshot, 1);
VIRT_REGISTER_RESOURCE(res_snapshot, le_libvirt_snapshot);
}
/*
* Function name: libvirt_domain_snapshot_create
* Since version: 0.4.1(-2)
* Description: This function creates the domain snapshot for the domain identified by it's resource
* Arguments: @res [resource]: libvirt domain resource
* @flags [int]: libvirt snapshot flags
* Returns: domain snapshot resource
*/
PHP_FUNCTION(libvirt_domain_snapshot_create)
{
php_libvirt_domain *domain = NULL;
php_libvirt_snapshot *res_snapshot;
zval *zdomain;
virDomainSnapshotPtr snapshot = NULL;
zend_long flags = 0;
GET_DOMAIN_FROM_ARGS("r|l", &zdomain, &flags);
snapshot = virDomainSnapshotCreateXML(domain->domain, "<domainsnapshot/>", flags);
DPRINTF("%s: virDomainSnapshotCreateXML(%p, <xml>) returned %p\n", PHPFUNC, domain->domain, snapshot);
if (snapshot == NULL)
RETURN_FALSE;
res_snapshot = (php_libvirt_snapshot *)emalloc(sizeof(php_libvirt_snapshot));
res_snapshot->domain = domain;
res_snapshot->snapshot = snapshot;
DPRINTF("%s: returning %p\n", PHPFUNC, res_snapshot->snapshot);
resource_change_counter(INT_RESOURCE_SNAPSHOT, domain->conn->conn, res_snapshot->snapshot, 1);
VIRT_REGISTER_RESOURCE(res_snapshot, le_libvirt_snapshot);
}
/*
* Function name: libvirt_domain_snapshot_current
* Since version: 0.5.6
* Description: Function is used to lookup the current snapshot for given domain
* Arguments: @res [resource]: libvirt domain resource
* @flags [int]: libvirt snapshot flags
* Returns: domain snapshot resource
*/
PHP_FUNCTION(libvirt_domain_snapshot_current)
{
php_libvirt_domain *domain = NULL;
zval *zdomain;
zend_long flags = 0;
php_libvirt_snapshot *res_snapshot;
virDomainSnapshotPtr snapshot = NULL;
GET_DOMAIN_FROM_ARGS("r|l", &zdomain, &flags);
snapshot = virDomainSnapshotCurrent(domain->domain, flags);
if (snapshot == NULL)
RETURN_FALSE;
res_snapshot = (php_libvirt_snapshot *)emalloc(sizeof(php_libvirt_snapshot));
res_snapshot->domain = domain;
res_snapshot->snapshot = snapshot;
DPRINTF("%s: returning %p\n", PHPFUNC, res_snapshot->snapshot);
resource_change_counter(INT_RESOURCE_SNAPSHOT, domain->conn->conn, res_snapshot->snapshot, 1);
VIRT_REGISTER_RESOURCE(res_snapshot, le_libvirt_snapshot);
}
/*
* Function name: libvirt_domain_snapshot_get_xml
* Since version: 0.4.1(-2)
* Description: Function is used to get the XML description of the snapshot identified by it's resource
* Arguments: @res [resource]: libvirt snapshot resource
* @flags [int]: libvirt snapshot flags
* Returns: XML description string for the snapshot
*/
PHP_FUNCTION(libvirt_domain_snapshot_get_xml)
{
char *xml;
zval *zsnapshot;
php_libvirt_snapshot *snapshot;
zend_long flags = 0;
GET_SNAPSHOT_FROM_ARGS("r|l", &zsnapshot, &flags);
xml = virDomainSnapshotGetXMLDesc(snapshot->snapshot, flags);
if (xml == NULL)
RETURN_FALSE;
VIRT_RETVAL_STRING(xml);
VIR_FREE(xml);
}
/*
* Function name: libvirt_domain_snapshot_revert
* Since version: 0.4.1(-2)
* Description: Function is used to revert the domain state to the state identified by the snapshot
* Arguments: @res [resource]: libvirt snapshot resource
* @flags [int]: libvirt snapshot flags
* Returns: TRUE on success, FALSE on error
*/
PHP_FUNCTION(libvirt_domain_snapshot_revert)
{
zval *zsnapshot;
php_libvirt_snapshot *snapshot;
int ret;
zend_long flags = 0;
GET_SNAPSHOT_FROM_ARGS("r|l", &zsnapshot, &flags);
ret = virDomainRevertToSnapshot(snapshot->snapshot, flags);
DPRINTF("%s: virDomainRevertToSnapshot(%p, 0) returned %d\n", PHPFUNC, snapshot->snapshot, ret);
if (ret == -1)
RETURN_FALSE;
RETURN_TRUE;
}
/*
* Function name: libvirt_domain_snapshot_delete
* Since version: 0.4.1(-2)
* Description: Function is used to revert the domain state to the state identified by the snapshot
* Arguments: @res [resource]: libvirt snapshot resource
* @flags [int]: 0 to delete just snapshot, VIR_SNAPSHOT_DELETE_CHILDREN to delete snapshot children as well
* Returns: TRUE on success, FALSE on error
*/
PHP_FUNCTION(libvirt_domain_snapshot_delete)
{
zval *zsnapshot;
php_libvirt_snapshot *snapshot;
zend_long flags = 0;
int retval;
GET_SNAPSHOT_FROM_ARGS("r|l", &zsnapshot, &flags);
retval = virDomainSnapshotDelete(snapshot->snapshot, flags);
DPRINTF("%s: virDomainSnapshotDelete(%p, %d) returned %d\n", PHPFUNC, snapshot->snapshot, (int) flags, retval);
if (retval == -1)
RETURN_FALSE;
RETURN_TRUE;
}
/*
* Function name: libvirt_list_domain_snapshots
* Since version: 0.4.1(-2)
* Description: Function is used to list domain snapshots for the domain specified by it's resource
* Arguments: @res [resource]: libvirt domain resource
* @flags [int]: libvirt snapshot flags
* Returns: libvirt domain snapshot names array
*/
PHP_FUNCTION(libvirt_list_domain_snapshots)
{
php_libvirt_domain *domain = NULL;
zval *zdomain;
int count = -1;
int expectedcount = -1;
char **names;
zend_long flags = 0;
int i;
GET_DOMAIN_FROM_ARGS("r|l", &zdomain, &flags);
expectedcount = virDomainSnapshotNum(domain->domain, flags);
DPRINTF("%s: virDomainSnapshotNum(%p, 0) returned %d\n", PHPFUNC, domain->domain, expectedcount);
if (expectedcount != -1) {
names = (char **)emalloc(expectedcount * sizeof(char *));
count = virDomainSnapshotListNames(domain->domain, names, expectedcount, 0);
}
if ((count != expectedcount) || (count < 0)) {
RETURN_FALSE;
} else {
array_init(return_value);
for (i = 0; i < count; i++) {
VIRT_ADD_NEXT_INDEX_STRING(return_value, names[i]);
VIR_FREE(names[i]);
}
}
efree(names);
}