void Server::sendImage()
{
//screenshot();
QByteArray block;
QDataStream out(&block, QIODevice::WriteOnly);
out.setVersion(QDataStream::Qt_4_0);
out << (quint32)0;
/*******************************/
virConnectPtr conn = NULL; /* the hypervisor connection */
virDomainPtr dom = NULL; /* the domain to be screenshotted */
virStreamPtr st = NULL;
char *mimetype = NULL;
conn = virConnectOpen("qemu:///system");
if (conn == NULL) {
fprintf(stderr, "Failed to connect to hypervisor\n");
if(st != NULL)
virStreamFree(st);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
/* Find the domain of the given id */
dom = virDomainLookupByName(conn, "win7-1");
if (dom == NULL) {
fprintf(stderr, "Failed to connect to hypervisor\n");
if(st != NULL)
virStreamFree(st);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
st = virStreamNew(conn, 0);
mimetype = virDomainScreenshot(dom, st, 0, 0);
if(mimetype == NULL) {
fprintf(stderr, "Failed in virDomainScreenshot funcation\n");
if(st != NULL)
virStreamFree(st);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
if(virStreamRecvAll(st, mysink, &out) < 0) {
fprintf(stderr, "Failed in virStreamRecvAll funcation\n");
if(st != NULL)
virStreamFree(st);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
if (virStreamFinish(st) < 0) {
fprintf(stderr, "Failed in virStreamFinish funcation\n");
if(st != NULL)
virStreamFree(st);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
if(st != NULL)
virStreamFree(st);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
/*******************************/
out.device()->seek(0);
out << (quint32)(block.size() - sizeof(quint32));
QTcpSocket *clientConnection = tcpServer->nextPendingConnection();
connect(clientConnection, SIGNAL(disconnected()),
clientConnection, SLOT(deleteLater()));
clientConnection->write(block);
clientConnection->disconnectFromHost();
QTextStream info(stdout);
info << tr("has sended %1 bytes\n").arg(block.size() - 4);
}
static bool
cmdVolDownload(vshControl *ctl, const vshCmd *cmd)
{
const char *file = NULL;
virStorageVolPtr vol = NULL;
bool ret = false;
int fd = -1;
virStreamPtr st = NULL;
const char *name = NULL;
unsigned long long offset = 0, length = 0;
bool created = false;
if (!vshConnectionUsability(ctl, ctl->conn))
return false;
if (vshCommandOptULongLong(cmd, "offset", &offset) < 0) {
vshError(ctl, _("Unable to parse integer"));
return false;
}
if (vshCommandOptULongLong(cmd, "length", &length) < 0) {
vshError(ctl, _("Unable to parse integer"));
return false;
}
if (!(vol = vshCommandOptVol(ctl, cmd, "vol", "pool", &name)))
return false;
if (vshCommandOptString(cmd, "file", &file) < 0) {
vshError(ctl, _("file must not be empty"));
goto cleanup;
}
if ((fd = open(file, O_WRONLY|O_CREAT|O_EXCL, 0666)) < 0) {
if (errno != EEXIST ||
(fd = open(file, O_WRONLY|O_TRUNC, 0666)) < 0) {
vshError(ctl, _("cannot create %s"), file);
goto cleanup;
}
} else {
created = true;
}
st = virStreamNew(ctl->conn, 0);
if (virStorageVolDownload(vol, st, offset, length, 0) < 0) {
vshError(ctl, _("cannot download from volume %s"), name);
goto cleanup;
}
if (virStreamRecvAll(st, vshStreamSink, &fd) < 0) {
vshError(ctl, _("cannot receive data from volume %s"), name);
goto cleanup;
}
if (VIR_CLOSE(fd) < 0) {
vshError(ctl, _("cannot close file %s"), file);
virStreamAbort(st);
goto cleanup;
}
if (virStreamFinish(st) < 0) {
vshError(ctl, _("cannot close volume %s"), name);
goto cleanup;
}
ret = true;
cleanup:
VIR_FORCE_CLOSE(fd);
if (!ret && created)
unlink(file);
if (vol)
virStorageVolFree(vol);
if (st)
virStreamFree(st);
return ret;
}
void Server::screenshot()
{
virConnectPtr conn = NULL; /* the hypervisor connection */
virDomainPtr dom = NULL; /* the domain to be screenshotted */
virStreamPtr st = NULL;
char *mimetype = NULL;
FILE *fp = NULL;
conn = virConnectOpen("qemu:///system");
if (conn == NULL) {
fprintf(stderr, "Failed to connect to hypervisor\n");
if(st != NULL)
virStreamFree(st);
if(fp != NULL)
fclose(fp);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
/* Find the domain of the given id */
dom = virDomainLookupByName(conn, "win7-1");
if (dom == NULL) {
fprintf(stderr, "Failed to connect to hypervisor\n");
if(st != NULL)
virStreamFree(st);
if(fp != NULL)
fclose(fp);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
st = virStreamNew(conn, 0);
mimetype = virDomainScreenshot(dom, st, 0, 0);
if(mimetype == NULL) {
fprintf(stderr, "Failed in virDomainScreenshot funcation\n");
if(st != NULL)
virStreamFree(st);
if(fp != NULL)
fclose(fp);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
fp = fopen("shot.ppm", "w");
if(fp == NULL) {
fprintf(stderr, "Failed in fopen funcation\n");
if(st != NULL)
virStreamFree(st);
if(fp != NULL)
fclose(fp);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
if(virStreamRecvAll(st, mysink, fp) < 0) {
fprintf(stderr, "Failed in virStreamRecvAll funcation\n");
if(st != NULL)
virStreamFree(st);
if(fp != NULL)
fclose(fp);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
if (virStreamFinish(st) < 0) {
fprintf(stderr, "Failed in virStreamFinish funcation\n");
if(st != NULL)
virStreamFree(st);
if(fp != NULL)
fclose(fp);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
return;
}
if(st != NULL)
virStreamFree(st);
if(fp != NULL)
fclose(fp);
if(mimetype !=NULL)
free(mimetype);
if (dom != NULL)
virDomainFree(dom);
if (conn != NULL)
virConnectClose(conn);
}
