mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-12 09:17:53 +00:00
b420ed8248
This change gets the Python codebase into a state where it conforms to the conventions of this codebase. It's now possible to include headers from Python, without worrying about ordering. Python has traditionally solved that problem by "diamonding" everything in Python.h, but that's problematic since it means any change to any Python header invalidates all the build artifacts. Lastly it makes tooling not work. Since it is hard to explain to Emacs when I press C-c C-h to add an import line it shouldn't add the header that actually defines the symbol, and instead do follow the nonstandard Python convention. Progress has been made on letting Python load source code from the zip executable structure via the standard C library APIs. System calss now recognizes zip!FILENAME alternative URIs as equivalent to zip:FILENAME since Python uses colon as its delimiter. Some progress has been made on embedding the notice license terms into the Python object code. This is easier said than done since Python has an extremely complicated ownership story. - Some termios APIs have been added - Implement rewinddir() dirstream API - GetCpuCount() API added to Cosmopolitan Libc - More bugs in Cosmopolitan Libc have been fixed - zipobj.com now has flags for mangling the path - Fixed bug a priori with sendfile() on certain BSDs - Polyfill F_DUPFD and F_DUPFD_CLOEXEC across platforms - FIOCLEX / FIONCLEX now polyfilled for fast O_CLOEXEC changes - APE now supports a hybrid solution to no-self-modify for builds - Many BSD-only magnums added, e.g. O_SEARCH, O_SHLOCK, SF_NODISKIO
72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
#ifndef Py_DICT_COMMON_H
|
|
#define Py_DICT_COMMON_H
|
|
#include "third_party/python/Include/dictobject.h"
|
|
#include "third_party/python/Include/object.h"
|
|
/* clang-format off */
|
|
|
|
typedef struct {
|
|
/* Cached hash code of me_key. */
|
|
Py_hash_t me_hash;
|
|
PyObject *me_key;
|
|
PyObject *me_value; /* This field is only meaningful for combined tables */
|
|
} PyDictKeyEntry;
|
|
|
|
/* dict_lookup_func() returns index of entry which can be used like DK_ENTRIES(dk)[index].
|
|
* -1 when no entry found, -3 when compare raises error.
|
|
*/
|
|
typedef Py_ssize_t (*dict_lookup_func)
|
|
(PyDictObject *mp, PyObject *key, Py_hash_t hash, PyObject ***value_addr,
|
|
Py_ssize_t *hashpos);
|
|
|
|
#define DKIX_EMPTY (-1)
|
|
#define DKIX_DUMMY (-2) /* Used internally */
|
|
#define DKIX_ERROR (-3)
|
|
|
|
/* See dictobject.c for actual layout of DictKeysObject */
|
|
struct _dictkeysobject {
|
|
Py_ssize_t dk_refcnt;
|
|
|
|
/* Size of the hash table (dk_indices). It must be a power of 2. */
|
|
Py_ssize_t dk_size;
|
|
|
|
/* Function to lookup in the hash table (dk_indices):
|
|
|
|
- lookdict(): general-purpose, and may return DKIX_ERROR if (and
|
|
only if) a comparison raises an exception.
|
|
|
|
- lookdict_unicode(): specialized to Unicode string keys, comparison of
|
|
which can never raise an exception; that function can never return
|
|
DKIX_ERROR.
|
|
|
|
- lookdict_unicode_nodummy(): similar to lookdict_unicode() but further
|
|
specialized for Unicode string keys that cannot be the <dummy> value.
|
|
|
|
- lookdict_split(): Version of lookdict() for split tables. */
|
|
dict_lookup_func dk_lookup;
|
|
|
|
/* Number of usable entries in dk_entries. */
|
|
Py_ssize_t dk_usable;
|
|
|
|
/* Number of used entries in dk_entries. */
|
|
Py_ssize_t dk_nentries;
|
|
|
|
/* Actual hash table of dk_size entries. It holds indices in dk_entries,
|
|
or DKIX_EMPTY(-1) or DKIX_DUMMY(-2).
|
|
|
|
Indices must be: 0 <= indice < USABLE_FRACTION(dk_size).
|
|
|
|
The size in bytes of an indice depends on dk_size:
|
|
|
|
- 1 byte if dk_size <= 0xff (char*)
|
|
- 2 bytes if dk_size <= 0xffff (int16_t*)
|
|
- 4 bytes if dk_size <= 0xffffffff (int32_t*)
|
|
- 8 bytes otherwise (int64_t*)
|
|
|
|
Dynamically sized, SIZEOF_VOID_P is minimum. */
|
|
char dk_indices[]; /* char is required to avoid strict aliasing. */
|
|
|
|
/* "PyDictKeyEntry dk_entries[dk_usable];" array follows:
|
|
see the DK_ENTRIES() macro */
|
|
};
|
|
|
|
#endif
|