26373 2009-06-13 10:42:39 -0700 Add a ReadWriteLock class to wtf for single writer/multiple reader locks 2009-06-13 10:53:02 -0700 1 1 1 Unclassified WebKit Platform 528+ (Nightly build) Mac OS X 10.5 RESOLVED FIXED P2 Normal --- 1 hyatt hyatt oldest_to_newest 125638 0 hyatt 2009-06-13 10:42:39 -0700 This bug is covering adding a ReadWriteLock class (very similar to the already-existing Mutex class) to handle single writer/multiple reader locking. 125639 1 31240 hyatt 2009-06-13 10:45:56 -0700 Created attachment 31240 Patch 125642 2 31240 andersca 2009-06-13 10:49:28 -0700 Comment on attachment 31240 Patch r=me 125644 3 hyatt 2009-06-13 10:53:02 -0700 Fixed in r44651. 31240 2009-06-13 10:45:56 -0700 2009-06-13 10:49:28 -0700 Patch patch.txt text/plain 4260 hyatt SW5kZXg6IENoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBDaGFuZ2VMb2cJKHJldmlzaW9uIDQ0NjUw KQorKysgQ2hhbmdlTG9nCSh3b3JraW5nIGNvcHkpCkBAIC0xLDMgKzEsMjQgQEAKKzIwMDktMDYt MTIgIERhdmUgSHlhdHQgIDxoeWF0dEBhcHBsZS5jb20+CisKKyAgICAgICAgUmV2aWV3ZWQgYnkg Tk9CT0RZIChPT1BTISkuCisKKyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19i dWcuY2dpP2lkPTI2MzczCisKKyAgICAgICAgQWRkIGEgbmV3IGNsYXNzIHRvIFRocmVhZGluZyBp biB3dGYgY2FsbGVkIFJlYWRXcml0ZUxvY2sgdGhhdCBoYW5kbGVzIHNpbmdsZSB3cml0ZXIvbXVs dGlwbGUgcmVhZGVyIGxvY2tpbmcuCisgICAgICAgIFByb3ZpZGUgYSBwdGhyZWFkcy1vbmx5IGlt cGxlbWVudGF0aW9uIG9mIHRoZSBsb2NrIGZvciBub3csIGFzIHRoaXMgY2xhc3MgaXMgb25seSBn b2luZyB0byBiZSB1c2VkCisgICAgICAgIG9uIFNub3cgTGVvcGFyZCBhdCBmaXJzdC4KKworICAg ICAgICAqIHd0Zi9UaHJlYWRpbmcuaDoKKyAgICAgICAgKFdURjo6UmVhZFdyaXRlTG9jazo6aW1w bCk6CisgICAgICAgICogd3RmL1RocmVhZGluZ1B0aHJlYWRzLmNwcDoKKyAgICAgICAgKFdURjo6 UmVhZFdyaXRlTG9jazo6UmVhZFdyaXRlTG9jayk6CisgICAgICAgIChXVEY6OlJlYWRXcml0ZUxv Y2s6On5SZWFkV3JpdGVMb2NrKToKKyAgICAgICAgKFdURjo6UmVhZFdyaXRlTG9jazo6cmVhZExv Y2spOgorICAgICAgICAoV1RGOjpSZWFkV3JpdGVMb2NrOjp0cnlSZWFkTG9jayk6CisgICAgICAg IChXVEY6OlJlYWRXcml0ZUxvY2s6OndyaXRlTG9jayk6CisgICAgICAgIChXVEY6OlJlYWRXcml0 ZUxvY2s6OnRyeVdyaXRlTG9jayk6CisgICAgICAgIChXVEY6OlJlYWRXcml0ZUxvY2s6OnVubG9j ayk6CisKIDIwMDktMDYtMTIgIE9saXZlciBIdW50ICA8b2xpdmVyQGFwcGxlLmNvbT4KIAogICAg ICAgICBSZXZpZXdlZCBieSBHZW9mZiBHYXJlbi4KSW5kZXg6IHd0Zi9UaHJlYWRpbmcuaAo9PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09Ci0tLSB3dGYvVGhyZWFkaW5nLmgJKHJldmlzaW9uIDQ0NTcyKQorKysgd3RmL1RocmVh ZGluZy5oCSh3b3JraW5nIGNvcHkpCkBAIC0xMjYsMTggKzEyNiwyMiBAQCB2b2lkIGRldGFjaFRo cmVhZChUaHJlYWRJZGVudGlmaWVyKTsKIAogI2lmIFVTRShQVEhSRUFEUykKIHR5cGVkZWYgcHRo cmVhZF9tdXRleF90IFBsYXRmb3JtTXV0ZXg7Cit0eXBlZGVmIHB0aHJlYWRfcndsb2NrX3QgUGxh dGZvcm1SZWFkV3JpdGVMb2NrOwogdHlwZWRlZiBwdGhyZWFkX2NvbmRfdCBQbGF0Zm9ybUNvbmRp dGlvbjsKICNlbGlmIFBMQVRGT1JNKEdUSykKIHR5cGVkZWYgR093blB0cjxHTXV0ZXg+IFBsYXRm b3JtTXV0ZXg7Cit0eXBlZGVmIHZvaWQqIFBsYXRmb3JtUmVhZFdyaXRlTG9jazsgLy8gRklYTUU6 IEltcGxlbWVudC4KIHR5cGVkZWYgR093blB0cjxHQ29uZD4gUGxhdGZvcm1Db25kaXRpb247CiAj ZWxpZiBQTEFURk9STShRVCkKIHR5cGVkZWYgUVRfUFJFUEVORF9OQU1FU1BBQ0UoUU11dGV4KSog UGxhdGZvcm1NdXRleDsKK3R5cGVkZWYgdm9pZCogUGxhdGZvcm1SZWFkV3JpdGVMb2NrOyAvLyBG SVhNRTogSW1wbGVtZW50LgogdHlwZWRlZiBRVF9QUkVQRU5EX05BTUVTUEFDRShRV2FpdENvbmRp dGlvbikqIFBsYXRmb3JtQ29uZGl0aW9uOwogI2VsaWYgUExBVEZPUk0oV0lOX09TKQogc3RydWN0 IFBsYXRmb3JtTXV0ZXggewogICAgIENSSVRJQ0FMX1NFQ1RJT04gbV9pbnRlcm5hbE11dGV4Owog ICAgIHNpemVfdCBtX3JlY3Vyc2lvbkNvdW50OwogfTsKK3R5cGVkZWYgdm9pZCogUGxhdGZvcm1S ZWFkV3JpdGVMb2NrOyAvLyBGSVhNRTogSW1wbGVtZW50Lgogc3RydWN0IFBsYXRmb3JtQ29uZGl0 aW9uIHsKICAgICBzaXplX3QgbV93YWl0ZXJzR29uZTsKICAgICBzaXplX3QgbV93YWl0ZXJzQmxv Y2tlZDsKQEAgLTE1MSw2ICsxNTUsNyBAQCBzdHJ1Y3QgUGxhdGZvcm1Db25kaXRpb24gewogfTsK ICNlbHNlCiB0eXBlZGVmIHZvaWQqIFBsYXRmb3JtTXV0ZXg7Cit0eXBlZGVmIHZvaWQqIFBsYXRm b3JtUmVhZFdyaXRlTG9jazsKIHR5cGVkZWYgdm9pZCogUGxhdGZvcm1Db25kaXRpb247CiAjZW5k aWYKICAgICAKQEAgLTE3MSw2ICsxNzYsMjcgQEAgcHJpdmF0ZToKIAogdHlwZWRlZiBMb2NrZXI8 TXV0ZXg+IE11dGV4TG9ja2VyOwogCitjbGFzcyBSZWFkV3JpdGVMb2NrIDogTm9uY29weWFibGUg eworcHVibGljOgorICAgIFJlYWRXcml0ZUxvY2soKTsKKyAgICB+UmVhZFdyaXRlTG9jaygpOwor CisgICAgdm9pZCByZWFkTG9jaygpOworICAgIGJvb2wgdHJ5UmVhZExvY2soKTsKKworICAgIHZv aWQgd3JpdGVMb2NrKCk7CisgICAgYm9vbCB0cnlXcml0ZUxvY2soKTsKKyAgICAKKyAgICB2b2lk IHVubG9jaygpOworCitwdWJsaWM6CisgICAgUGxhdGZvcm1SZWFkV3JpdGVMb2NrJiBpbXBsKCkg eyByZXR1cm4gbV9yZWFkV3JpdGVMb2NrOyB9Citwcml2YXRlOgorICAgIFBsYXRmb3JtUmVhZFdy aXRlTG9jayBtX3JlYWRXcml0ZUxvY2s7Cit9OworCit0eXBlZGVmIExvY2tlcjxSZWFkV3JpdGVM b2NrPiBSZWFkV3JpdGVMb2NrZXI7CisKIGNsYXNzIFRocmVhZENvbmRpdGlvbiA6IE5vbmNvcHlh YmxlIHsKIHB1YmxpYzoKICAgICBUaHJlYWRDb25kaXRpb24oKTsKSW5kZXg6IHd0Zi9UaHJlYWRp bmdQdGhyZWFkcy5jcHAKPT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gd3RmL1RocmVhZGluZ1B0aHJlYWRzLmNwcAko cmV2aXNpb24gNDQ1NzIpCisrKyB3dGYvVGhyZWFkaW5nUHRocmVhZHMuY3BwCSh3b3JraW5nIGNv cHkpCkBAIC0yNjcsNiArMjY3LDYxIEBAIHZvaWQgTXV0ZXg6OnVubG9jaygpCiAgICAgQVNTRVJU X1VOVVNFRChyZXN1bHQsICFyZXN1bHQpOwogfQogCisKK1JlYWRXcml0ZUxvY2s6OlJlYWRXcml0 ZUxvY2soKQoreworICAgIHB0aHJlYWRfcndsb2NrX2luaXQoJm1fcmVhZFdyaXRlTG9jaywgTlVM TCk7Cit9CisKK1JlYWRXcml0ZUxvY2s6On5SZWFkV3JpdGVMb2NrKCkKK3sKKyAgICBwdGhyZWFk X3J3bG9ja19kZXN0cm95KCZtX3JlYWRXcml0ZUxvY2spOworfQorCit2b2lkIFJlYWRXcml0ZUxv Y2s6OnJlYWRMb2NrKCkKK3sKKyAgICBpbnQgcmVzdWx0ID0gcHRocmVhZF9yd2xvY2tfcmRsb2Nr KCZtX3JlYWRXcml0ZUxvY2spOworICAgIEFTU0VSVF9VTlVTRUQocmVzdWx0LCAhcmVzdWx0KTsK K30KKworYm9vbCBSZWFkV3JpdGVMb2NrOjp0cnlSZWFkTG9jaygpCit7CisgICAgaW50IHJlc3Vs dCA9IHB0aHJlYWRfcndsb2NrX3RyeXJkbG9jaygmbV9yZWFkV3JpdGVMb2NrKTsKKworICAgIGlm IChyZXN1bHQgPT0gMCkKKyAgICAgICAgcmV0dXJuIHRydWU7CisgICAgaWYgKHJlc3VsdCA9PSBF QlVTWSB8fCByZXN1bHQgPT0gRUFHQUlOKQorICAgICAgICByZXR1cm4gZmFsc2U7CisKKyAgICBB U1NFUlRfTk9UX1JFQUNIRUQoKTsKKyAgICByZXR1cm4gZmFsc2U7Cit9CisKK3ZvaWQgUmVhZFdy aXRlTG9jazo6d3JpdGVMb2NrKCkKK3sKKyAgICBpbnQgcmVzdWx0ID0gcHRocmVhZF9yd2xvY2tf d3Jsb2NrKCZtX3JlYWRXcml0ZUxvY2spOworICAgIEFTU0VSVF9VTlVTRUQocmVzdWx0LCAhcmVz dWx0KTsKK30KKworYm9vbCBSZWFkV3JpdGVMb2NrOjp0cnlXcml0ZUxvY2soKQoreworICAgIGlu dCByZXN1bHQgPSBwdGhyZWFkX3J3bG9ja190cnl3cmxvY2soJm1fcmVhZFdyaXRlTG9jayk7CisK KyAgICBpZiAocmVzdWx0ID09IDApCisgICAgICAgIHJldHVybiB0cnVlOworICAgIGlmIChyZXN1 bHQgPT0gRUJVU1kgfHwgcmVzdWx0ID09IEVBR0FJTikKKyAgICAgICAgcmV0dXJuIGZhbHNlOwor CisgICAgQVNTRVJUX05PVF9SRUFDSEVEKCk7CisgICAgcmV0dXJuIGZhbHNlOworfQorCit2b2lk IFJlYWRXcml0ZUxvY2s6OnVubG9jaygpCit7CisgICAgaW50IHJlc3VsdCA9IHB0aHJlYWRfcnds b2NrX3VubG9jaygmbV9yZWFkV3JpdGVMb2NrKTsKKyAgICBBU1NFUlRfVU5VU0VEKHJlc3VsdCwg IXJlc3VsdCk7Cit9CisKIFRocmVhZENvbmRpdGlvbjo6VGhyZWFkQ29uZGl0aW9uKCkKIHsgCiAg ICAgcHRocmVhZF9jb25kX2luaXQoJm1fY29uZGl0aW9uLCBOVUxMKTsK