From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wen Congyang Subject: Re: [PATCH v10 10/31] tools/libxl: add back channel support to write stream Date: Thu, 3 Mar 2016 09:25:58 +0800 Message-ID: <56D792A6.8040805@cn.fujitsu.com> References: <1456109555-28299-1-git-send-email-wency@cn.fujitsu.com> <1456109555-28299-11-git-send-email-wency@cn.fujitsu.com> <20160225155456.GG4235@citrix.com> <56CFB44F.5040607@cn.fujitsu.com> <20160302150253.GA1657@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20160302150253.GA1657@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 T24gMDMvMDIvMjAxNiAxMTowMiBQTSwgV2VpIExpdSB3cm90ZToKPiBPbiBGcmksIEZlYiAyNiwg MjAxNiBhdCAxMDoxMToyN0FNICswODAwLCBXZW4gQ29uZ3lhbmcgd3JvdGU6Cj4+IE9uIDAyLzI1 LzIwMTYgMTE6NTQgUE0sIFdlaSBMaXUgd3JvdGU6Cj4+PiBPbiBNb24sIEZlYiAyMiwgMjAxNiBh dCAxMDo1MjoxNEFNICswODAwLCBXZW4gQ29uZ3lhbmcgd3JvdGU6Cj4+Pj4gQWRkIGJhY2sgY2hh bm5lbCBzdXBwb3J0IHRvIHdyaXRlIHN0cmVhbS4gSWYgdGhlIHdyaXRlIHN0cmVhbSBpcwo+Pj4+ IGEgYmFjayBjaGFubmVsIHN0cmVhbSwgdGhpcyBtZWFucyB0aGUgd3JpdGUgc3RyZWFtIGlzIHVz ZWQgYnkKPj4+PiBTZWNvbmRhcnkgdG8gc2VuZCBzb21lIHJlY29yZHMgYmFjay4KPj4+Pgo+Pj4+ IFNpZ25lZC1vZmYtYnk6IFlhbmcgSG9uZ3lhbmcgPGhvbmd5YW5nLnlhbmdAZWFzeXN0YWNrLmNu Pgo+Pj4+IFNpZ25lZC1vZmYtYnk6IFdlbiBDb25neWFuZyA8d2VuY3lAY24uZnVqaXRzdS5jb20+ Cj4+Pj4gLS0tCj4+Pj4gIHRvb2xzL2xpYnhsL2xpYnhsX2RvbV9zYXZlLmMgICAgIHwgIDEgKwo+ Pj4+ICB0b29scy9saWJ4bC9saWJ4bF9pbnRlcm5hbC5oICAgICB8ICAxICsKPj4+PiAgdG9vbHMv bGlieGwvbGlieGxfc3RyZWFtX3dyaXRlLmMgfCAyNiArKysrKysrKysrKysrKysrKysrKy0tLS0t LQo+Pj4+ICAzIGZpbGVzIGNoYW5nZWQsIDIyIGluc2VydGlvbnMoKyksIDYgZGVsZXRpb25zKC0p Cj4+Pj4KPj4+PiBkaWZmIC0tZ2l0IGEvdG9vbHMvbGlieGwvbGlieGxfZG9tX3NhdmUuYyBiL3Rv b2xzL2xpYnhsL2xpYnhsX2RvbV9zYXZlLmMKPj4+PiBpbmRleCA3MmI2MWM3Li4xODk0NmM1IDEw MDY0NAo+Pj4+IC0tLSBhL3Rvb2xzL2xpYnhsL2xpYnhsX2RvbV9zYXZlLmMKPj4+PiArKysgYi90 b29scy9saWJ4bC9saWJ4bF9kb21fc2F2ZS5jCj4+Pj4gQEAgLTQwNCw2ICs0MDQsNyBAQCB2b2lk IGxpYnhsX19kb21haW5fc2F2ZShsaWJ4bF9fZWdjICplZ2MsIGxpYnhsX19kb21haW5fc2F2ZV9z dGF0ZSAqZHNzKQo+Pj4+ICAgICAgZHNzLT5zd3MuYW8gID0gZHNzLT5hbzsKPj4+PiAgICAgIGRz cy0+c3dzLmRzcyA9IGRzczsKPj4+PiAgICAgIGRzcy0+c3dzLmZkICA9IGRzcy0+ZmQ7Cj4+Pj4g KyAgICBkc3MtPnN3cy5iYWNrX2NoYW5uZWwgPSBmYWxzZTsKPj4+PiAgICAgIGRzcy0+c3dzLmNv bXBsZXRpb25fY2FsbGJhY2sgPSBzdHJlYW1fZG9uZTsKPj4+PiAgCj4+Pj4gICAgICBsaWJ4bF9f c3RyZWFtX3dyaXRlX3N0YXJ0KGVnYywgJmRzcy0+c3dzKTsKPj4+PiBkaWZmIC0tZ2l0IGEvdG9v bHMvbGlieGwvbGlieGxfaW50ZXJuYWwuaCBiL3Rvb2xzL2xpYnhsL2xpYnhsX2ludGVybmFsLmgK Pj4+PiBpbmRleCAzZDNlOGU4Li5lMDJlNTU0IDEwMDY0NAo+Pj4+IC0tLSBhL3Rvb2xzL2xpYnhs L2xpYnhsX2ludGVybmFsLmgKPj4+PiArKysgYi90b29scy9saWJ4bC9saWJ4bF9pbnRlcm5hbC5o Cj4+Pj4gQEAgLTMwNDQsNiArMzA0NCw3IEBAIHN0cnVjdCBsaWJ4bF9fc3RyZWFtX3dyaXRlX3N0 YXRlIHsKPj4+PiAgICAgIGxpYnhsX19hbyAqYW87Cj4+Pj4gICAgICBsaWJ4bF9fZG9tYWluX3Nh dmVfc3RhdGUgKmRzczsKPj4+PiAgICAgIGludCBmZDsKPj4+PiArICAgIGJvb2wgYmFja19jaGFu bmVsOwo+Pj4+ICAgICAgdm9pZCAoKmNvbXBsZXRpb25fY2FsbGJhY2spKGxpYnhsX19lZ2MgKmVn YywKPj4+PiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBsaWJ4bF9fc3RyZWFtX3dy aXRlX3N0YXRlICpzd3MsCj4+Pj4gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgaW50 IHJjKTsKPj4+PiBkaWZmIC0tZ2l0IGEvdG9vbHMvbGlieGwvbGlieGxfc3RyZWFtX3dyaXRlLmMg Yi90b29scy9saWJ4bC9saWJ4bF9zdHJlYW1fd3JpdGUuYwo+Pj4+IGluZGV4IGY2ZWE1NWQuLjUz NzkxMjYgMTAwNjQ0Cj4+Pj4gLS0tIGEvdG9vbHMvbGlieGwvbGlieGxfc3RyZWFtX3dyaXRlLmMK Pj4+PiArKysgYi90b29scy9saWJ4bC9saWJ4bF9zdHJlYW1fd3JpdGUuYwo+Pj4+IEBAIC00OSw2 ICs0OSwxMyBAQAo+Pj4+ICAgKiAgLSBpZiAoaHZtKQo+Pj4+ICAgKiAgICAgIC0gRW11bGF0b3Ig Y29udGV4dCByZWNvcmQKPj4+PiAgICogIC0gQ2hlY2twb2ludCBlbmQgcmVjb3JkCj4+Pj4gKyAq Cj4+Pj4gKyAqIEZvciBiYWNrIGNoYW5uZWwgc3RyZWFtOgo+Pj4+ICsgKiAtIGxpYnhsX19zdHJl YW1fd3JpdGVfc3RhcnQoKQo+Pj4+ICsgKiAgICAtIFNldCB1cCB0aGUgc3RyZWFtIHRvIHJ1bm5p bmcgc3RhdGUKPj4+PiArICoKPj4+PiArICogLSBBZGQgYSBuZXcgQVBJIHRvIHdyaXRlIHRoZSBy ZWNvcmQuIFdoZW4gdGhlIHJlY29yZCBpcyB3cml0dGVuCj4+Pj4gKyAqICAgb3V0LCBjYWxsIHN0 cmVhbS0+Y2hlY2twb2ludF9jYWxsYmFjaygpIHRvIHJldHVybi4KPj4+Cj4+PiBXaGF0IGRvZXMg dGhpcyBtZWFuPyBXaGljaCBuZXcgQVBJPwo+Pgo+PiBUaGUgbmV4dCBwYXRjaCBpbnRyb2R1Y2Vz IHRoaXMgQVBJLiBUaGUgY29tbWl0cyBpcyB2ZXJ5IG9sZC4KPj4KPj4gSSB0aGluayBJIGNhbiBt ZXJnZSB0aGVzZSB0d28gcGF0Y2hlcyBpbnRvIG9uZSBwYXRjaC4KPj4KPiAKPiBQbGVhc2UgcmVm ZXJlbmNlIHRoZSBhY3R1YWwgZnVuY3Rpb24gLyBBUEkuCj4gCj4+Pgo+Pj4+ICAgKi8KPj4+PiAg Cj4+Pj4gIC8qIFN1Y2Nlc3MvZXJyb3IvY2xlYW51cCBoYW5kbGluZy4gKi8KPj4+PiBAQCAtMjI1 LDYgKzIzMiwxNSBAQCB2b2lkIGxpYnhsX19zdHJlYW1fd3JpdGVfc3RhcnQobGlieGxfX2VnYyAq ZWdjLAo+Pj4+ICAKPj4+PiAgICAgIHN0cmVhbS0+cnVubmluZyA9IHRydWU7Cj4+Pj4gIAo+Pj4+ ICsgICAgZGMtPmFvICAgICAgICA9IGFvOwo+Pj4+ICsgICAgZGMtPnJlYWRmZCAgICA9IC0xOwo+ Pj4+ICsgICAgZGMtPmNvcHl3aGF0ICA9ICJzYXZlIHYyIHN0cmVhbSI7Cj4+Pj4gKyAgICBkYy0+ d3JpdGVmZCAgID0gc3RyZWFtLT5mZDsKPj4+PiArICAgIGRjLT5tYXhzeiAgICAgPSAtMTsKPj4+ PiArCj4+Pj4gKyAgICBpZiAoc3RyZWFtLT5iYWNrX2NoYW5uZWwpCj4+Pj4gKyAgICAgICAgcmV0 dXJuOwo+Pj4+ICsKPj4+Cj4+PiBUaGVyZSBzZWVtcyB0byBiZSB2ZXJ5IHN1YnRsZSBjaGFuZ2Ug b2YgYmVoYXZpb3VyLgo+Pj4KPj4+IEJlZm9yZSB0aGlzIHBhdGNoLCB0aGUgZGMtPiogYXJlIG5v dCBzZXQgdW50aWwgdGhlIGVtdWxhdG9yIGNoZWNrIGlzCj4+PiBkb25lLiBXaXRoIHRoaXMgcGF0 aCwgaXQgaXMgcG9zc2libGUgaW4gdGhlIG5vcm1hbCBjYXNlIHNvbWUgb2YgdGhlCj4+PiBmaWVs ZHMgYXJlIGluaXRpYWxpc2VkIGluIHRoZSBlcnJvciBwYXRoLgo+Pj4KPj4+IEkgdGhpbmsgdGhp cyBpcyBPSyBnaXZlbiB0aGUgY2FsbGJhY2tzIGluIHRoZSB1cHBlciBsYXllciBhbmQgaW4KPj4+ IHRoZSB3cml0ZXIgZG9uJ3QgcmVseSBvbiB0aG9zZSBmaWVsZHMgdG8gY2xlYW4gdXAuIEp1c3Qg b25lIHRoaW5nIHRvCj4+PiBub3RlLgo+Pj4KPj4+IFRoYXQgc2FpZCwgSSBzdWdnZXN0IHlvdSBt b3ZlIGFsbCBpbml0aWFsaXNhdGlvbiBvZiBkYy0+KiBpbiBvbmUgcGxhY2UuCj4+Cj4+IE9LLCBJ IHdpbGwgZG8gaXQuCj4+Cj4+Pgo+Pj4+ICAgICAgaWYgKGRzcy0+dHlwZSA9PSBMSUJYTF9ET01B SU5fVFlQRV9IVk0pIHsKPj4+PiAgICAgICAgICBzdHJlYW0tPmRldmljZV9tb2RlbF92ZXJzaW9u ID0KPj4+PiAgICAgICAgICAgICAgbGlieGxfX2RldmljZV9tb2RlbF92ZXJzaW9uX3J1bm5pbmco Z2MsIGRzcy0+ZG9taWQpOwo+Pj4+IEBAIC0yNDksMTIgKzI2NSw3IEBAIHZvaWQgbGlieGxfX3N0 cmVhbV93cml0ZV9zdGFydChsaWJ4bF9fZWdjICplZ2MsCj4+Pj4gICAgICAgICAgc3RyZWFtLT5l bXVfc3ViX2hkci5pbmRleCA9IDA7Cj4+Pj4gICAgICB9Cj4+Pj4gIAo+Pj4+IC0gICAgZGMtPmFv ICAgICAgICA9IGFvOwo+Pj4+IC0gICAgZGMtPnJlYWRmZCAgICA9IC0xOwo+Pj4+ICAgICAgZGMt PndyaXRld2hhdCA9ICJzdHJlYW0gaGVhZGVyIjsKPj4+PiAtICAgIGRjLT5jb3B5d2hhdCAgPSAi c2F2ZSB2MiBzdHJlYW0iOwo+Pj4+IC0gICAgZGMtPndyaXRlZmQgICA9IHN0cmVhbS0+ZmQ7Cj4+ Pj4gLSAgICBkYy0+bWF4c3ogICAgID0gLTE7Cj4+Pj4gICAgICBkYy0+Y2FsbGJhY2sgID0gc3Ry ZWFtX2hlYWRlcl9kb25lOwo+Pj4+ICAKPj4+PiAgICAgIHJjID0gbGlieGxfX2RhdGFjb3BpZXJf c3RhcnQoZGMpOwo+Pj4+IEBAIC0yNzksNiArMjkwLDcgQEAgdm9pZCBsaWJ4bF9fc3RyZWFtX3dy aXRlX3N0YXJ0X2NoZWNrcG9pbnQobGlieGxfX2VnYyAqZWdjLAo+Pj4+ICB7Cj4+Pj4gICAgICBh c3NlcnQoc3RyZWFtLT5ydW5uaW5nKTsKPj4+PiAgICAgIGFzc2VydCghc3RyZWFtLT5pbl9jaGVj a3BvaW50KTsKPj4+PiArICAgIGFzc2VydCghc3RyZWFtLT5iYWNrX2NoYW5uZWwpOwo+Pj4+ICAg ICAgc3RyZWFtLT5pbl9jaGVja3BvaW50ID0gdHJ1ZTsKPj4+PiAgCj4+Pj4gICAgICB3cml0ZV9l bXVsYXRvcl94ZW5zdG9yZV9yZWNvcmQoZWdjLCBzdHJlYW0pOwo+Pj4+IEBAIC01OTAsNyArNjAy LDkgQEAgc3RhdGljIHZvaWQgc3RyZWFtX2RvbmUobGlieGxfX2VnYyAqZWdjLAo+Pj4+ICAgICAg ICAgIGxpYnhsX19jYXJlZmRfY2xvc2Uoc3RyZWFtLT5lbXVfY2FyZWZkKTsKPj4+PiAgICAgIGZy ZWUoc3RyZWFtLT5lbXVfYm9keSk7Cj4+Pj4gIAo+Pj4+IC0gICAgY2hlY2tfYWxsX2ZpbmlzaGVk KGVnYywgc3RyZWFtLCByYyk7Cj4+Pj4gKyAgICBpZiAoIXN0cmVhbS0+YmFja19jaGFubmVsKQo+ Pj4+ICsgICAgICAgIC8qIGJhY2sgY2hhbm5lbCBzdHJlYW0gZG9lc24ndCBoYXZlIHNhdmUgaGVs cGVyICovCj4+Pj4gKyAgICAgICAgY2hlY2tfYWxsX2ZpbmlzaGVkKGVnYywgc3RyZWFtLCByYyk7 Cj4+Pgo+Pj4gVGhvdWdoIGl0IGRvZXNuJ3QgaGF2ZSBoZWxwZXIsIGRvIHlvdSBub3QgbmVlZCB0 byBjaGVjayBpZiB0aGUgYmFjawo+Pj4gY2hhbm5lbCBzdHJlYW0gaXRzZWxmIGlzIE9LPyBUaGUg Y29tbWVudCBpdHNlbGYgZG9lc24ndCBzZWVtIHRvIGp1c3RpZnkKPj4+IHRoaXMgY2hhbmdlLgo+ Pgo+PiBXaGF0IGRvIHlvdSB3YW50IHRvIGNoZWNrPyBhc3NlcnQoIXN0cmVhbS0+c2hzKSBvcgo+ PiBhc3NlcnQoIWxpYnhsX19zdHJlYW1fd3JpdGVfaW51c2Uoc3RyZWFtKSk/Cj4gCj4gCj4gVGhl IHN0cmVhbSBpdHNlbGYgaXMgbm90IGluIHVzZS4KCldlIHNldCBzdHJlYW0tPnJ1bm5pbmcgdG8g ZmFsc2UgaW4gc3RyZWFtX2RvbmUsIHNvIGxpYnhsX19zdHJlYW1fd3JpdGVfaW51c2UoKQp3aWxs IHJldHVybiBmYWxzZS4gU28gSSB0aGluayB0aGVyZSBpcyBubyBuZWVkIHRvIGNoZWNrIGl0LiBJ IHdpbGwgdXBkYXRlCnRoZSBjb21tZW50cyB0byBkb2N1bWVudCBpdC4KCj4gCj4gQWxzbyBjaGVj a19hbGxfZmluaXNoZWQgY2FsbHMgY29tcGxldGlvbl9jYWxsYmFjay4gRG9uJ3QgeW91IG5lZWQg dGhhdCwKPiB0b28/CgpiYWNrIGNoYW5uZWwgc3RyZWFtIGRvZXNuJ3QgaGF2ZSBjb21wbGV0aW9u X2NhbGxiYWNrLiBTZWUgdGhlIGNvbW1lbnRzIGluCmNoZWNrX2FsbF9maW5pc2hlZCgpLgoKVGhh bmtzCldlbiBDb25neWFuZwoKPiAKPiBXZWkuCj4gCj4+Cj4+IFRoYW5rcwo+PiBXZW4gQ29uZ3lh bmcKPj4KPj4+Cj4+PiBXZWkuCj4+Pgo+Pj4+ICB9Cj4+Pj4gIAo+Pj4+ICBzdGF0aWMgdm9pZCBj aGVja3BvaW50X2RvbmUobGlieGxfX2VnYyAqZWdjLAo+Pj4+IC0tIAo+Pj4+IDIuNS4wCj4+Pj4K Pj4+Pgo+Pj4+Cj4+Pj4KPj4+PiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwo+Pj4+IFhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKPj4+PiBYZW4tZGV2ZWxAbGlz dHMueGVuLm9yZwo+Pj4+IGh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo+Pj4KPj4+Cj4+ PiAuCj4+Pgo+Pgo+Pgo+Pgo+IAo+IAo+IC4KPiAKCgoKCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVs QGxpc3RzLnhlbi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==