ó GĎOc@s8dZdZdZyRddlZddlZddlZejZdZ ej Z ej ƒZ d ZWneefk r}nXy1ddlZejZej Z ej Z d ZWneefk rČnXd „Zed kród „Zd „ZnAed krd„Zd„Zn dZZ Z d„Zd„ZdS(s˜ Portable file locking utilities. Based partially on example by Jonathan Feignberg in the Python Cookbook, licensed under the Python Software License. http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/65203 Example Usage:: >>> from django.core.files import locks >>> with open('./file', 'wb') as f: ... locks.lock(f, locks.LOCK_EX) ... f.write('Django') tLOCK_EXtLOCK_SHtLOCK_NBtlocktunlocki˙˙˙˙NitnttposixcCst|dƒr|jƒp|S(sCGet a filedescriptor from something which could be a file or an fd.tfileno(thasattrR(tf((s0../Django//lib/python/django/core/files/locks.pytfd*scCs2tjt|ƒƒ}tj||ddtƒdS(Nii˙˙(t win32filet_get_osfhandleR t LockFileExt __overlapped(tfiletflagsthfile((s0../Django//lib/python/django/core/files/locks.pyR/scCs/tjt|ƒƒ}tj|ddtƒdS(Nii˙˙(R R R t UnlockFileExR(RR((s0../Django//lib/python/django/core/files/locks.pyR3scCstjt|ƒ|ƒdS(N(tfcntltlockfR (RR((s0../Django//lib/python/django/core/files/locks.pyR7scCstjt|ƒtjƒdS(N(RRR tLOCK_UN(R((s0../Django//lib/python/django/core/files/locks.pyR:scCsdS(N((RR((s0../Django//lib/python/django/core/files/locks.pyRAscCsdS(N((R((s0../Django//lib/python/django/core/files/locks.pyRDs(sLOCK_EXsLOCK_SHsLOCK_NBslocksunlock(t__doc__t__all__tNonet system_typetwin32conR t pywintypestLOCKFILE_EXCLUSIVE_LOCKRRtLOCKFILE_FAIL_IMMEDIATELYRt OVERLAPPEDRt ImportErrortAttributeErrorRR RR(((s0../Django//lib/python/django/core/files/locks.pyts>