From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wen Congyang Subject: Re: [PATCH v10 12/31] tools/libxl: add back channel support to read stream Date: Fri, 26 Feb 2016 10:16:43 +0800 Message-ID: <56CFB58B.10109@cn.fujitsu.com> References: <1456109555-28299-1-git-send-email-wency@cn.fujitsu.com> <1456109555-28299-13-git-send-email-wency@cn.fujitsu.com> <20160225155442.GF4235@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20160225155442.GF4235@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Wei Liu Cc: Lars Kurth , Changlong Xie , Ian Campbell , Andrew Cooper , Jiang Yunhong , Ian Jackson , xen devel , Dong Eddie , Gui Jianfeng , Shriram Rajagopalan , Yang Hongyang List-Id: xen-devel@lists.xenproject.org T24gMDIvMjUvMjAxNiAxMTo1NCBQTSwgV2VpIExpdSB3cm90ZToKPiBPbiBNb24sIEZlYiAyMiwg MjAxNiBhdCAxMDo1MjoxNkFNICswODAwLCBXZW4gQ29uZ3lhbmcgd3JvdGU6Cj4+IFRoaXMgaXMg dXNlZCBieSBwcmltYXkgdG8gcmVhZCByZWNvcmRzIHNlbnQgYnkgc2Vjb25kYXJ5Lgo+Pgo+PiBT aWduZWQtb2ZmLWJ5OiBZYW5nIEhvbmd5YW5nIDxob25neWFuZy55YW5nQGVhc3lzdGFjay5jbj4K Pj4gU2lnbmVkLW9mZi1ieTogV2VuIENvbmd5YW5nIDx3ZW5jeUBjbi5mdWppdHN1LmNvbT4KPj4g LS0tCj4+ICB0b29scy9saWJ4bC9saWJ4bF9jcmVhdGUuYyAgICAgIHwgIDEgKwo+PiAgdG9vbHMv bGlieGwvbGlieGxfaW50ZXJuYWwuaCAgICB8ICAxICsKPj4gIHRvb2xzL2xpYnhsL2xpYnhsX3N0 cmVhbV9yZWFkLmMgfCAyNyArKysrKysrKysrKysrKysrKysrKysrKy0tLS0KPj4gIDMgZmlsZXMg Y2hhbmdlZCwgMjUgaW5zZXJ0aW9ucygrKSwgNCBkZWxldGlvbnMoLSkKPj4KPj4gZGlmZiAtLWdp dCBhL3Rvb2xzL2xpYnhsL2xpYnhsX2NyZWF0ZS5jIGIvdG9vbHMvbGlieGwvbGlieGxfY3JlYXRl LmMKPj4gaW5kZXggNTI1YmY4NS4uZmM3NDZmYiAxMDA2NDQKPj4gLS0tIGEvdG9vbHMvbGlieGwv bGlieGxfY3JlYXRlLmMKPj4gKysrIGIvdG9vbHMvbGlieGwvbGlieGxfY3JlYXRlLmMKPj4gQEAg LTEwMzAsNiArMTAzMCw3IEBAIHN0YXRpYyB2b2lkIGRvbWNyZWF0ZV9ib290bG9hZGVyX2RvbmUo bGlieGxfX2VnYyAqZWdjLAo+PiAgICAgIGRjcy0+c3JzLmRjcyA9IGRjczsKPj4gICAgICBkY3Mt PnNycy5mZCA9IHJlc3RvcmVfZmQ7Cj4+ICAgICAgZGNzLT5zcnMubGVnYWN5ID0gKGRjcy0+cmVz dG9yZV9wYXJhbXMuc3RyZWFtX3ZlcnNpb24gPT0gMSk7Cj4+ICsgICAgZGNzLT5zcnMuYmFja19j aGFubmVsID0gZmFsc2U7Cj4+ICAgICAgZGNzLT5zcnMuY29tcGxldGlvbl9jYWxsYmFjayA9IGRv bWNyZWF0ZV9zdHJlYW1fZG9uZTsKPj4gIAo+PiAgICAgIGlmIChyZXN0b3JlX2ZkID49IDApIHsK Pj4gZGlmZiAtLWdpdCBhL3Rvb2xzL2xpYnhsL2xpYnhsX2ludGVybmFsLmggYi90b29scy9saWJ4 bC9saWJ4bF9pbnRlcm5hbC5oCj4+IGluZGV4IGNkZjY3NTEuLjMyOTU3Y2EgMTAwNjQ0Cj4+IC0t LSBhL3Rvb2xzL2xpYnhsL2xpYnhsX2ludGVybmFsLmgKPj4gKysrIGIvdG9vbHMvbGlieGwvbGli eGxfaW50ZXJuYWwuaAo+PiBAQCAtMzQyMCw2ICszNDIwLDcgQEAgc3RydWN0IGxpYnhsX19zdHJl YW1fcmVhZF9zdGF0ZSB7Cj4+ICAgICAgbGlieGxfX2RvbWFpbl9jcmVhdGVfc3RhdGUgKmRjczsK Pj4gICAgICBpbnQgZmQ7Cj4+ICAgICAgYm9vbCBsZWdhY3k7Cj4+ICsgICAgYm9vbCBiYWNrX2No YW5uZWw7Cj4+ICAgICAgdm9pZCAoKmNvbXBsZXRpb25fY2FsbGJhY2spKGxpYnhsX19lZ2MgKmVn YywKPj4gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgbGlieGxfX3N0cmVhbV9yZWFk X3N0YXRlICpzcnMsCj4+ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIGludCByYyk7 Cj4+IGRpZmYgLS1naXQgYS90b29scy9saWJ4bC9saWJ4bF9zdHJlYW1fcmVhZC5jIGIvdG9vbHMv bGlieGwvbGlieGxfc3RyZWFtX3JlYWQuYwo+PiBpbmRleCBmNDc4MWViLi4wMmEyYzQ2IDEwMDY0 NAo+PiAtLS0gYS90b29scy9saWJ4bC9saWJ4bF9zdHJlYW1fcmVhZC5jCj4+ICsrKyBiL3Rvb2xz L2xpYnhsL2xpYnhsX3N0cmVhbV9yZWFkLmMKPj4gQEAgLTExOCw2ICsxMTgsMTUgQEAKPj4gICAq ICAgIHJlY29yZCwgYW5kIHRoZXJlZm9yZSB0aGUgYnVmZmVyZWQgc3RhdGUgaXMgaW5jb25zaXN0 ZW50LiBJbgo+PiAgICogICAgbGlieGxfX3hjX2RvbWFpbl9yZXN0b3JlX2RvbmUoKSwgd2UganVz dCBjb21wbGV0ZSB0aGUgc3RyZWFtIGFuZAo+PiAgICogICAgc3RyZWFtLT5jb21wbGV0aW9uX2Nh bGxiYWNrKCkgd2lsbCBiZSBjYWxsZWQgdG8gcmVzdW1lIHRoZSBndWVzdAo+PiArICoKPj4gKyAq IEZvciBiYWNrIGNoYW5uZWwgc3RyZWFtOgo+PiArICogLSBsaWJ4bF9fc3RyZWFtX3JlYWRfc3Rh cnQoKQo+PiArICogICAgLSBTZXQgdXAgdGhlIHN0cmVhbSB0byBydW5uaW5nIHN0YXRlCj4+ICsg Kgo+PiArICogLSBsaWJ4bF9fc3RyZWFtX3JlYWRfY29udGludWUoKQo+PiArICogICAgIC0gU2V0 IHVwIHJlYWRpbmcgdGhlIG5leHQgcmVjb3JkIGZyb20gYSBzdGFydGVkIHN0cmVhbS4KPj4gKyAq ICAgICAgIEFkZCBzb21lIGNvZGVzIHRvIHByb2Nlc3NfcmVjb3JkKCkgdG8gaGFuZGxlIHRoZSBy ZWNvcmQuCj4+ICsgKiAgICAgICBUaGVuIGNhbGwgc3RyZWFtLT5jaGVja3BvaW50X2NhbGxiYWNr KCkgdG8gcmV0dXJuLgo+PiAgICovCj4+ICAKPj4gIC8qIFN1Y2Nlc3MvZXJyb3IvY2xlYW51cCBo YW5kbGluZy4gKi8KPj4gQEAgLTIyMSw2ICsyMzAsMTcgQEAgdm9pZCBsaWJ4bF9fc3RyZWFtX3Jl YWRfc3RhcnQobGlieGxfX2VnYyAqZWdjLAo+PiAgICAgIHN0cmVhbS0+cnVubmluZyA9IHRydWU7 Cj4+ICAgICAgc3RyZWFtLT5waGFzZSAgID0gU1JTX1BIQVNFX05PUk1BTDsKPj4gIAo+PiArICAg IGRjLT5hbyAgICAgICA9IHN0cmVhbS0+YW87Cj4+ICsgICAgZGMtPmNvcHl3aGF0ID0gInJlc3Rv cmUgdjIgc3RyZWFtIjsKPj4gKyAgICBkYy0+d3JpdGVmZCAgPSAtMTsKPj4gKwo+PiArICAgIGlm IChzdHJlYW0tPmJhY2tfY2hhbm5lbCkgewo+PiArICAgICAgICBhc3NlcnQoIXN0cmVhbS0+bGVn YWN5KTsKPj4gKwo+PiArICAgICAgICBkYy0+cmVhZGZkID0gc3RyZWFtLT5mZDsKPiAKPiBXaHkg aXMgdGhpcyBuZWVkZWQ/IGRjLT5yZWFkZmQgaXMgc2V0IHRvIHN0cmVhbS0+ZmQgbm8gbWF0dGVy IGl0IGlzIGJhY2sKPiBjaGFubmVsIG9yIG5vdC4gVGhpcyBjYW4gYmUgbW92ZWQgb3V0c2lkZSB0 aGlzIGlmIHt9LgoKWWVzLCB3aWxsIGZpeCBpdCBpbiB0aGUgbmV4dCB2ZXJzaW9uLgoKPiAKPj4g KyAgICAgICAgcmV0dXJuOwo+PiArICAgIH0KPj4gKwo+PiAgICAgIGlmIChzdHJlYW0tPmxlZ2Fj eSkgewo+PiAgICAgICAgICAvKiBDb252ZXJ0IHRoZSBsZWdhY3kgc3RyZWFtLiAqLwo+PiAgICAg ICAgICBsaWJ4bF9fY29udmVyc2lvbl9oZWxwZXJfc3RhdGUgKmNocyA9ICZzdHJlYW0tPmNoczsK Pj4gQEAgLTI0MywxMCArMjYzLDcgQEAgdm9pZCBsaWJ4bF9fc3RyZWFtX3JlYWRfc3RhcnQobGli eGxfX2VnYyAqZWdjLAo+PiAgICAgIH0KPj4gICAgICAvKiBzdHJlYW0tPmZkIGlzIG5vdyBhIHYy IHN0cmVhbS4gKi8KPj4gIAo+PiAtICAgIGRjLT5hbyAgICAgICA9IHN0cmVhbS0+YW87Cj4+IC0g ICAgZGMtPmNvcHl3aGF0ID0gInJlc3RvcmUgdjIgc3RyZWFtIjsKPj4gICAgICBkYy0+cmVhZGZk ICAgPSBzdHJlYW0tPmZkOwo+PiAtICAgIGRjLT53cml0ZWZkICA9IC0xOwo+PiAgCj4+ICAgICAg LyogU3RhcnQgcmVhZGluZyB0aGUgc3RyZWFtIGhlYWRlci4gKi8KPj4gICAgICByYyA9IHNldHVw X3JlYWQoc3RyZWFtLCAic3RyZWFtIGhlYWRlciIsCj4+IEBAIC03NjIsNyArNzc5LDkgQEAgc3Rh dGljIHZvaWQgc3RyZWFtX2RvbmUobGlieGxfX2VnYyAqZWdjLAo+PiAgICAgIExJQlhMX1NUQUlM UV9GT1JFQUNIX1NBRkUocmVjLCAmc3RyZWFtLT5yZWNvcmRfcXVldWUsIGVudHJ5LCB0cmVjKQo+ PiAgICAgICAgICBmcmVlX3JlY29yZChyZWMpOwo+PiAgCj4+IC0gICAgY2hlY2tfYWxsX2Zpbmlz aGVkKGVnYywgc3RyZWFtLCByYyk7Cj4+ICsgICAgaWYgKCFzdHJlYW0tPmJhY2tfY2hhbm5lbCkK Pj4gKyAgICAgICAgLyogYmFjayBjaGFubmVsIHN0cmVhbSBkb2Vzbid0IGhhdmUgcmVzdG9yZSBo ZWxwZXIgKi8KPj4gKyAgICAgICAgY2hlY2tfYWxsX2ZpbmlzaGVkKGVnYywgc3RyZWFtLCByYyk7 Cj4gCj4gRXZlbiBpZiBpdCBkb2Vzbid0IGhhdmUgcmVzdG9yZSBoZWxwZXIsIGNoZWNrX2FsbF9m aW5pc2hlZCBhbHNvIGNoZWNrcwo+IGlmIHRoZSBzdHJlYW0gYW5kIHRoZSBjb252ZXJzaW9uIGhl bHBlciBhcmUgdGlsbCBpbiB1c2UuICBUaGUKPiBleHBsYW5hdGlvbiBpbiB0aGUgY29tbWVudCBk b2Vzbid0IHNlZW0gdG8ganVzdGlmeSB0aGlzIGNoYW5nZS4KCkluIHN0cmVhbV9kb25lKCksIHN0 cmVhbS0+cnVubmluZyBpcyBzZXQgdG8gZmFsc2UsIHNvIGxpYnhsX19zdHJlYW1fcmVhZF9pbl91 c2UoKQpyZXR1cm5zIGZhbHNlLgoKQmFjayBjaGFubmVsIHN0cmVhbSBkb2Vzbid0IHN1cHBvcnQg bGVnYWN5IHN0cmVhbSwgc28gdGhlcmUgaXMgbm8gY29udmVyc2lvbiBoZWxwZXIuCgpJIHdpbGwg dXBkYXRlIHRoZSBjb21tZW50cyBpbiB0aGUgbmV4dCB2ZXJzaW9uLgoKVGhhbmtzCldlbiBDb25n eWFuZwoKPiAKPiBXZWkuCj4gCj4+ICB9Cj4+ICAKPj4gIHZvaWQgbGlieGxfX3hjX2RvbWFpbl9y ZXN0b3JlX2RvbmUobGlieGxfX2VnYyAqZWdjLCB2b2lkICpkY3Nfdm9pZCwKPj4gLS0gCj4+IDIu NS4wCj4+Cj4+Cj4+Cj4+Cj4+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCj4+IFhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKPj4gWGVuLWRldmVsQGxpc3RzLnhl bi5vcmcKPj4gaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCj4gCj4gCj4gLgo+IAoKCgoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9y Zy94ZW4tZGV2ZWwK