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Merge pull request #50 from zopefoundation/drop-setup-requires
Drop using ``setup_requires`` due to constant problems on GHA
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,42 @@ | ||
| /***************************************************************************** | ||
| Copyright (c) 2012 Zope Foundation and Contributors. | ||
| All Rights Reserved. | ||
| This software is subject to the provisions of the Zope Public License, | ||
| Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. | ||
| THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED | ||
| WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
| WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS | ||
| FOR A PARTICULAR PURPOSE | ||
| ****************************************************************************/ | ||
|
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| #ifndef PERSISTENT__COMPAT_H | ||
| #define PERSISTENT__COMPAT_H | ||
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| #include "Python.h" | ||
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| #define INTERN PyUnicode_InternFromString | ||
| #define INTERN_INPLACE PyUnicode_InternInPlace | ||
| #define NATIVE_CHECK_EXACT PyUnicode_CheckExact | ||
| #define NATIVE_FROM_STRING_AND_SIZE PyUnicode_FromStringAndSize | ||
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| #define Py_TPFLAGS_HAVE_RICHCOMPARE 0 | ||
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| #define INT_FROM_LONG(x) PyLong_FromLong(x) | ||
| #define INT_CHECK(x) PyLong_Check(x) | ||
| #define INT_AS_LONG(x) PyLong_AsLong(x) | ||
| #define CAPI_CAPSULE_NAME "persistent.cPersistence.CAPI" | ||
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| #else | ||
| #define INTERN PyString_InternFromString | ||
| #define INTERN_INPLACE PyString_InternInPlace | ||
| #define NATIVE_CHECK_EXACT PyString_CheckExact | ||
| #define NATIVE_FROM_STRING_AND_SIZE PyString_FromStringAndSize | ||
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| #define INT_FROM_LONG(x) PyInt_FromLong(x) | ||
| #define INT_CHECK(x) PyInt_Check(x) | ||
| #define INT_AS_LONG(x) PyInt_AS_LONG(x) | ||
|
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||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| /***************************************************************************** | ||
| Copyright (c) 2001, 2002 Zope Foundation and Contributors. | ||
| All Rights Reserved. | ||
| This software is subject to the provisions of the Zope Public License, | ||
| Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. | ||
| THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED | ||
| WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
| WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS | ||
| FOR A PARTICULAR PURPOSE | ||
| ****************************************************************************/ | ||
|
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| #ifndef CPERSISTENCE_H | ||
| #define CPERSISTENCE_H | ||
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| #include "_compat.h" | ||
| #include "bytesobject.h" | ||
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| #include "ring.h" | ||
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| #define CACHE_HEAD \ | ||
| PyObject_HEAD \ | ||
| CPersistentRing ring_home; \ | ||
| int non_ghost_count; \ | ||
| Py_ssize_t total_estimated_size; | ||
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| struct ccobject_head_struct; | ||
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| typedef struct ccobject_head_struct PerCache; | ||
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| /* How big is a persistent object? | ||
| 12 PyGC_Head is two pointers and an int | ||
| 8 PyObject_HEAD is an int and a pointer | ||
| 12 jar, oid, cache pointers | ||
| 8 ring struct | ||
| 8 serialno | ||
| 4 state + extra | ||
| 4 size info | ||
| (56) so far | ||
| 4 dict ptr | ||
| 4 weaklist ptr | ||
| ------------------------- | ||
| 68 only need 62, but obmalloc rounds up to multiple of eight | ||
| Even a ghost requires 64 bytes. It's possible to make a persistent | ||
| instance with slots and no dict, which changes the storage needed. | ||
| */ | ||
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| #define cPersistent_HEAD \ | ||
| PyObject_HEAD \ | ||
| PyObject *jar; \ | ||
| PyObject *oid; \ | ||
| PerCache *cache; \ | ||
| CPersistentRing ring; \ | ||
| char serial[8]; \ | ||
| signed state:8; \ | ||
| unsigned estimated_size:24; | ||
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| /* We recently added estimated_size. We originally added it as a new | ||
| unsigned long field after a signed char state field and a | ||
| 3-character reserved field. This didn't work because there | ||
| are packages in the wild that have their own copies of cPersistence.h | ||
| that didn't see the update. | ||
| To get around this, we used the reserved space by making | ||
| estimated_size a 24-bit bit field in the space occupied by the old | ||
| 3-character reserved field. To fit in 24 bits, we made the units | ||
| of estimated_size 64-character blocks. This allows is to handle up | ||
| to a GB. We should never see that, but to be paranoid, we also | ||
| truncate sizes greater than 1GB. We also set the minimum size to | ||
| 64 bytes. | ||
| We use the _estimated_size_in_24_bits and _estimated_size_in_bytes | ||
| macros both to avoid repetition and to make intent a little clearer. | ||
| */ | ||
| #define _estimated_size_in_24_bits(I) ((I) > 1073741696 ? 16777215 : (I)/64+1) | ||
| #define _estimated_size_in_bytes(I) ((I)*64) | ||
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| #define cPersistent_GHOST_STATE -1 | ||
| #define cPersistent_UPTODATE_STATE 0 | ||
| #define cPersistent_CHANGED_STATE 1 | ||
| #define cPersistent_STICKY_STATE 2 | ||
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| typedef struct { | ||
| cPersistent_HEAD | ||
| } cPersistentObject; | ||
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| typedef void (*percachedelfunc)(PerCache *, PyObject *); | ||
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| typedef struct { | ||
| PyTypeObject *pertype; | ||
| getattrofunc getattro; | ||
| setattrofunc setattro; | ||
| int (*changed)(cPersistentObject*); | ||
| void (*accessed)(cPersistentObject*); | ||
| void (*ghostify)(cPersistentObject*); | ||
| int (*setstate)(PyObject*); | ||
| percachedelfunc percachedel; | ||
| int (*readCurrent)(cPersistentObject*); | ||
| } cPersistenceCAPIstruct; | ||
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| #define cPersistenceType cPersistenceCAPI->pertype | ||
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| #ifndef DONT_USE_CPERSISTENCECAPI | ||
| static cPersistenceCAPIstruct *cPersistenceCAPI; | ||
| #endif | ||
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| #define cPersistanceModuleName "cPersistence" | ||
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| #define PER_TypeCheck(O) PyObject_TypeCheck((O), cPersistenceCAPI->pertype) | ||
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| #define PER_USE_OR_RETURN(O,R) {if((O)->state==cPersistent_GHOST_STATE && cPersistenceCAPI->setstate((PyObject*)(O)) < 0) return (R); else if ((O)->state==cPersistent_UPTODATE_STATE) (O)->state=cPersistent_STICKY_STATE;} | ||
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| #define PER_CHANGED(O) (cPersistenceCAPI->changed((cPersistentObject*)(O))) | ||
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| #define PER_READCURRENT(O, E) \ | ||
| if (cPersistenceCAPI->readCurrent((cPersistentObject*)(O)) < 0) { E; } | ||
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| #define PER_GHOSTIFY(O) (cPersistenceCAPI->ghostify((cPersistentObject*)(O))) | ||
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| /* If the object is sticky, make it non-sticky, so that it can be ghostified. | ||
| The value is not meaningful | ||
| */ | ||
| #define PER_ALLOW_DEACTIVATION(O) ((O)->state==cPersistent_STICKY_STATE && ((O)->state=cPersistent_UPTODATE_STATE)) | ||
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| #define PER_PREVENT_DEACTIVATION(O) ((O)->state==cPersistent_UPTODATE_STATE && ((O)->state=cPersistent_STICKY_STATE)) | ||
|
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| /* | ||
| Make a persistent object usable from C by: | ||
| - Making sure it is not a ghost | ||
| - Making it sticky. | ||
| IMPORTANT: If you call this and don't call PER_ALLOW_DEACTIVATION, | ||
| your object will not be ghostified. | ||
| PER_USE returns a 1 on success and 0 failure, where failure means | ||
| error. | ||
| */ | ||
| #define PER_USE(O) \ | ||
| (((O)->state != cPersistent_GHOST_STATE \ | ||
| || (cPersistenceCAPI->setstate((PyObject*)(O)) >= 0)) \ | ||
| ? (((O)->state==cPersistent_UPTODATE_STATE) \ | ||
| ? ((O)->state=cPersistent_STICKY_STATE) : 1) : 0) | ||
|
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| #define PER_ACCESSED(O) (cPersistenceCAPI->accessed((cPersistentObject*)(O))) | ||
|
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| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| /***************************************************************************** | ||
| Copyright (c) 2003 Zope Foundation and Contributors. | ||
| All Rights Reserved. | ||
| This software is subject to the provisions of the Zope Public License, | ||
| Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution. | ||
| THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED | ||
| WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
| WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS | ||
| FOR A PARTICULAR PURPOSE | ||
| ****************************************************************************/ | ||
|
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| /* Support routines for the doubly-linked list of cached objects. | ||
| The cache stores a headed, doubly-linked, circular list of persistent | ||
| objects, with space for the pointers allocated in the objects themselves. | ||
| The cache stores the distinguished head of the list, which is not a valid | ||
| persistent object. The other list members are non-ghost persistent | ||
| objects, linked in LRU (least-recently used) order. | ||
| The r_next pointers traverse the ring starting with the least recently used | ||
| object. The r_prev pointers traverse the ring starting with the most | ||
| recently used object. | ||
| Obscure: While each object is pointed at twice by list pointers (once by | ||
| its predecessor's r_next, again by its successor's r_prev), the refcount | ||
| on the object is bumped only by 1. This leads to some possibly surprising | ||
| sequences of incref and decref code. Note that since the refcount is | ||
| bumped at least once, the list does hold a strong reference to each | ||
| object in it. | ||
| */ | ||
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| typedef struct CPersistentRing_struct | ||
| { | ||
| struct CPersistentRing_struct *r_prev; | ||
| struct CPersistentRing_struct *r_next; | ||
| } CPersistentRing; | ||
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| /* The list operations here take constant time independent of the | ||
| * number of objects in the list: | ||
| */ | ||
|
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| /* Add elt as the most recently used object. elt must not already be | ||
| * in the list, although this isn't checked. | ||
| */ | ||
| void ring_add(CPersistentRing *ring, CPersistentRing *elt); | ||
|
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| /* Remove elt from the list. elt must already be in the list, although | ||
| * this isn't checked. | ||
| */ | ||
| void ring_del(CPersistentRing *elt); | ||
|
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| /* elt must already be in the list, although this isn't checked. It's | ||
| * unlinked from its current position, and relinked into the list as the | ||
| * most recently used object (which is arguably the tail of the list | ||
| * instead of the head -- but the name of this function could be argued | ||
| * either way). This is equivalent to | ||
| * | ||
| * ring_del(elt); | ||
| * ring_add(ring, elt); | ||
| * | ||
| * but may be a little quicker. | ||
| */ | ||
| void ring_move_to_head(CPersistentRing *ring, CPersistentRing *elt); |
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