From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from FZEX3.ruijie.com.cn (mxfz.ruijie.com.cn [120.35.11.201]) by dpdk.org (Postfix) with ESMTP id EEFF41E34 for ; Sat, 21 Jul 2018 03:32:29 +0200 (CEST) Received: from FZEX4.ruijie.com.cn ([fe80::4814:fd0d:3b:861c]) by FZEX3.ruijie.com.cn ([fe80::9480:e49e:2190:b001%17]) with mapi id 14.03.0123.003; Sat, 21 Jul 2018 09:32:28 +0800 From: To: CC: Thread-Topic: Re: [dpdk-dev] Does lthread_cond_wait need a mutex? Thread-Index: AQHUIJKuI56bX4YwqkiohLbXO1sz+A== Date: Sat, 21 Jul 2018 01:32:27 +0000 Message-ID: <82A10A71B70FF2449A8AD233969A45A11DB0CCBA@FZEX4.ruijie.com.cn> References: <82A10A71B70FF2449A8AD233969A45A11DB0310F@FZEX4.ruijie.com.cn>, <84056D8E-0669-403A-ABE4-005CE1FC57FB@intel.com>, <82A10A71B70FF2449A8AD233969A45A11DB07B25@FZEX4.ruijie.com.cn>, <1A8B8E17-366B-475A-8399-AE7C26CED6C7@intel.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.21.1.178] MIME-Version: 1.0 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: Re: [dpdk-dev] Does lthread_cond_wait need a mutex? X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 21 Jul 2018 01:32:31 -0000 SGl+DQogICAgSSB3b3VsZCBiZSBhcHByZWNpYXRlIGl0IGlmIHlvdSBjb3VsZCBwcm92aWRlIHlv dXIgbHRocmVhZCBjb2RlIGZvciBtZS4gQW5kIEkgZm91bmQgdGhhdCBEUERLIGx0aHJlYWRzIGRv ZXMgbm90IHByb3ZpZGUgbHRocmVhZF9jb25kX3RpbWVkd2FpdCBBUEkgd2hpY2ggSSBhbSBsb29r aW5nIGZvci4NCiAgICBUaGFua3MuDQoNCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f DQpSZWdhcmRzLA0KV3ViZW5xaW5nDQoNCkZyb206IFdpbGVzLCBLZWl0aDxtYWlsdG86a2VpdGgu d2lsZXNAaW50ZWwuY29tPg0KRGF0ZTogMjAxOC0wNy0xOSAxMzoyMQ0KVG86IM7isb7H5CjR0M7l ILij1t0pPG1haWx0bzp3dWJlbnFpbmdAcnVpamllLmNvbS5jbj4NCkNDOiBkZXZAZHBkay5vcmc8 bWFpbHRvOmRldkBkcGRrLm9yZz4NClN1YmplY3Q6IFJlOiBbZHBkay1kZXZdIERvZXMgbHRocmVh ZF9jb25kX3dhaXQgbmVlZCBhIG11dGV4Pw0KDQoNCg0KPiBPbiBKdWwgMTgsIDIwMTgsIGF0IDc6 MzQgUE0sIHd1YmVucWluZ0BydWlqaWUuY29tLmNuIHdyb3RlOg0KPg0KPiBIaX4NCj4NCj4gSWYg dGhlIGx0aHJlYWRzIHJ1biBvbiBkaWZmZXJlbnQgbGNvcmVzLCBhIHJhY2UgY29uZGl0aW9uIHdp dGggbHRocmVhZF9tdXRleCBtYXkgb2NjdXIuDQo+IExpa2UgdGhpczoNCj4gICAgIGx0aHJlYWQx IHJ1biBvbiBsY29yZT0xDQo+ICAgICBsdGhyZWFkMiBydW4gb24gbGNvcmU9Mg0KPiBJZiB0aGUg bXV0ZXggaXMgb3duZWQgYnkgbHRocmVhZDIsIGx0aHJlYWQxIHRyeSB0byBsb2NrIHRoZSBtdXRl eCB0aGF0IHdpbGwgYmxvY2sgdGhyZWFkMS4gbHRocmVhZF9zY2hlZCBvbiBsY29yZTEgd2lsbCBp bnNlcnQgbHRocmVhZDEgdG8gdGhlIGJsb2NrZWQgcXVldWUgb2YgdGhlIG11dGV4LiBsdGhyZWFk MSBibG9ja3MgdW50aWwgbHRocmVhZDIgdW5sb2NrIHRoZSBtdXRleC4NCj4gSXMgdGhhdCByaWdo dD8NCj4NCj4gTGV0J3MgZ28gYmFjayB0byB0aGUgcHJldmlvdXMgcXVlc3Rpb24uDQo+DQo+IFJl ZmVyIHRvIGh0dHA6Ly9wdWJzLm9wZW5ncm91cC5vcmcvb25saW5lcHVicy83OTA4Nzk5L3hzaC9w dGhyZWFkX2NvbmRfd2FpdC5odG1sDQo+ICJUaGUgcHRocmVhZF9jb25kX3dhaXQoKSBhbmQgcHRo cmVhZF9jb25kX3RpbWVkd2FpdCgpIGZ1bmN0aW9ucyBhcmUgdXNlZCB0byBibG9jayBvbiBhIGNv bmRpdGlvbiB2YXJpYWJsZS4gVGhleSBhcmUgY2FsbGVkIHdpdGggbXV0ZXggbG9ja2VkIGJ5IHRo ZSBjYWxsaW5nIHRocmVhZCBvciB1bmRlZmluZWQgYmVoYXZpb3VyIHdpbGwgcmVzdWx0Lg0KPiBU aGVzZSBmdW5jdGlvbnMgYXRvbWljYWxseSByZWxlYXNlIG11dGV4IGFuZCBjYXVzZSB0aGUgY2Fs bGluZyB0aHJlYWQgdG8gYmxvY2sgb24gdGhlIGNvbmRpdGlvbiB2YXJpYWJsZSBjb25kOyBhdG9t aWNhbGx5IGhlcmUgbWVhbnMgImF0b21pY2FsbHkgd2l0aCByZXNwZWN0IHRvIGFjY2VzcyBieSBh bm90aGVyIHRocmVhZCB0byB0aGUgbXV0ZXggYW5kIHRoZW4gdGhlIGNvbmRpdGlvbiB2YXJpYWJs ZaGxLiINCg0KWWVzLCBJIGJlbGlldmUgeW91IGFyZSBjb3JyZWN0LiBJIHdhcyBhYmxlIHRvIGxv b2sgYXQgbXkgdmVyc2lvbiBvZiBsdGhyZWFkcyBhbmQgSSBoYWQgY2hhbmdlZCBsdGhyZWFkX2Nv bmRfd2FpdCgpIHRvIGhhdmUgYSBtdXRleCBhcmd1bWVudCBhbmQgcmVtb3ZlZCB0aGUgcmVzZXJ2 ZWQgdmFyaWFibGUuIFRoZSBzYW1lIHdhcyBkb25lIGZvciB0aW1lZCB3YWl0IGZ1bmN0aW9uLiBB cyBJIHJlbWVtYmVyIEkgZm91bmQgYSBjb3VwbGUgbWlub3IgcHJvYmxlbXMgaW4gbHRocmVhZHMs IHdoaWNoIEkgZml4ZWQuIFRoZSBwcm9ibGVtIGlzIG15IGx0aHJlYWQgY29kZSBpcyBzb21ld2hh dCBkaWZmZXJlbnQgdGhlbiB0aGUgY29kZSBpbiBEUERLIGFuZCBteSBjaGFuZ2VzIHdvdWxkIG5v dCBhcHBseSB0byBEUERLIGx0aHJlYWRzLg0KDQo+DQo+IFNvIEkgdGhpbmsgdGhlcmUgaXMgYSBw cm9ibGVtIHdpdGggcHRocmVhZF9jb25kX3dhaXQgaW1wbGVtZW50ZWQgYnkgbHRocmVhZC4gSWYg dGhhdCBpcyB0aGUgY2FzZSwgY291bGQgbHRocmVhZCBmaXggdGhpcyBwcm9ibGVtPw0KPg0KPiBS ZWdhcmRzLA0KPiBXdWJlbnFpbmcNCj4NCj4NCj4gRnJvbTogV2lsZXMsIEtlaXRoDQo+IERhdGU6 IDIwMTgtMDctMTggMjM6MDENCj4gVG86IM7isb7H5CjR0M7lILij1t0pDQo+IENDOiBkZXZAZHBk ay5vcmcNCj4gU3ViamVjdDogUmU6IFtkcGRrLWRldl0gRG9lcyBsdGhyZWFkX2NvbmRfd2FpdCBu ZWVkIGEgbXV0ZXg/DQo+DQo+DQo+ID4gT24gSnVsIDE3LCAyMDE4LCBhdCAxMDo0MyBQTSwgd3Vi ZW5xaW5nQHJ1aWppZS5jb20uY24gd3JvdGU6DQo+ID4NCj4gPiBIaX4NCj4gPiAgICBSZWZlcmVu Y2U6IGh0dHA6Ly9kb2MuZHBkay5vcmcvZ3VpZGVzLTE4LjA1L3NhbXBsZV9hcHBfdWcvcGVyZm9y bWFuY2VfdGhyZWFkLmh0bWw/aGlnaGxpZ2h0PWx0aHJlYWQNCj4gPiAgICBUaGUgTC10aHJlYWQg c3Vic3lzdGVtIHByb3ZpZGVzIGEgc2V0IG9mIGZ1bmN0aW9ucyB0aGF0IGFyZSBsb2dpY2FsbHkg ZXF1aXZhbGVudCB0byB0aGUgY29ycmVzcG9uZGluZyBmdW5jdGlvbnMgb2ZmZXJlZCBieSB0aGUg UE9TSVggcHRocmVhZCBsaWJyYXJ5Lg0KPiA+ICAgIEkgdGhpbmsgdGhlcmUgaXMgYSBidWcgd2l0 aCBwdGhyZWFkX2NvbmRfd2FpdCBvZiBsdGhyZWFkIGltcGxlbWVudC4NCj4gPiAgICBMb29rIGF0 IHRoaXMgY29kZSwgdGhlcmUgYXJlIHR3byBsdGhyZWFkOg0KPiA+DQo+ID4gbHRocmVhZDE6DQo+ ID4gICAgcHRocmVhZF9tdXRleF9sb2NrKG11dGV4KTsgICAgICAgICAgICAgICAgIC8vYTENCj4g PiAgICBpZiAocHJlZGljYXRlID09IEZBTFNFKSB7ICAgICAgICAgICAgICAgICAgICAgICAgLy9h Mg0KPiA+ICAgICAgICBwdGhyZWFkX2NvbmRfd2FpdChjb25kLCBtdXRleCkgICAgICAgIC8vYTMN Cj4gPiAgICB9DQo+ID4gICAgcHRocmVhZF9tdXRleF91bmxvY2sobXV0ZXgpOyAgICAgICAgICAg IC8vYTQNCj4gPg0KPiA+IGludCBwdGhyZWFkX2NvbmRfd2FpdChwdGhyZWFkX2NvbmRfdCAqY29u ZCwgcHRocmVhZF9tdXRleF90ICptdXRleCkNCj4gPiB7DQo+ID4gaWYgKG92ZXJyaWRlKSB7DQo+ ID4gcHRocmVhZF9tdXRleF91bmxvY2sobXV0ZXgpOyAvL2EzMQ0KPiA+IGludCBydiA9IGx0aHJl YWRfY29uZF93YWl0KCooc3RydWN0IGx0aHJlYWRfY29uZCAqKiljb25kLCAwKTsgLy9hMzINCj4g Pg0KPiA+IHB0aHJlYWRfbXV0ZXhfbG9jayhtdXRleCk7IC8vYTMzDQo+ID4gcmV0dXJuIHJ2Ow0K PiA+IH0NCj4gPiByZXR1cm4gX3N5c19wdGhyZWFkX2Z1bmNzLmZfcHRocmVhZF9jb25kX3dhaXQo Y29uZCwgbXV0ZXgpOw0KPiA+IH0NCj4gPg0KPiA+IGx0aHJlYWQyOg0KPiA+ICAgIHB0aHJlYWRf bXV0ZXhfbG9jayhtdXRleCk7ICAgICAgICAgICAgICAgIC8vYjENCj4gPiAgICBwcmVkaWNhdGUg PSBUUlVFOyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgLy9iMg0KPiA+ICAgIHB0aHJl YWRfbXV0ZXhfdW5sb2NrKG11dGV4KTsgICAgICAgICAgICAvL2IzDQo+ID4gICAgcHRocmVhZF9j b25kX3NpZ25hbChjb25kKTsgICAgICAgICAgICAgICAgLy9iNA0KPiA+DQo+ID4NCj4gPiAgICBJ ZiB0aGUgc2VxdWVuY2UgaXM6DQo+ID4gICAgYTEtPmEyLT5hMzEtPmIxLT5iMi0+YjMtPmI0LT5h MzINCj4gPiAgICBXaWxsIGx0aHJlYWQxIHNsZWVwIGZvcmV2ZXI/DQo+DQo+IE1heWJlIGlzIGl0 IHBvc3NpYmxlLCBteSBicmFpbiBpcyBub3Qgd29ya2luZyB0aGlzIG1vcm5pbmcuIFBsZWFzZSBy ZW1lbWJlciB0aGF0IGx0aHJlYWRzIG11c3QgZ2l2ZSB1cCBjb250cm9sIG9yIGx0aHJlYWQgd2ls bCBjb250aW51ZSB0byBhbmQgY2FuIG5vdCBiZSBwcmVlbXB0ZWQuDQo+DQo+IERvZXMgdGhhdCBm aXggdGhlIHByb2JsZW0/DQo+DQo+ID4NCj4gPiBfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXw0KPiA+IM7isb7H5CjR0M7lILij1t0pDQo+DQo+IFJlZ2FyZHMsDQo+IEtlaXRoDQoNClJl Z2FyZHMsDQpLZWl0aA0KDQo=