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Improve Libc by making Python work even better
Actually Portable Python is now outperforming the Python binaries
that come bundled with Linux distros, at things like HTTP serving.
You can now have a fully featured Python install in just one .com
file that runs on six operating systems and is about 10mb in size.
With tuning, the tiniest is ~1mb. We've got most of the libraries
working, including pysqlite, and the repl now feels very pleasant.
The things you can't do quite yet are: threads and shared objects
but that can happen in the future, if the community falls in love
with this project and wants to see it developed further. Changes:
- Add siginterrupt()
- Add sqlite3 to Python
- Add issymlink() helper
- Make GetZipCdir() faster
- Add tgamma() and finite()
- Add legacy function lutimes()
- Add readlink() and realpath()
- Use heap allocations when appropriate
- Reorganize Python into two-stage build
- Save Lua / Python shell history to dotfile
- Integrate Python Lib embedding into linkage
- Make isregularfile() and isdirectory() go faster
- Make Python shell auto-completion work perfectly
- Make crash reports work better if changed directory
- Fix Python+NT open() / access() flag overflow error
- Disable Python tests relating to \N{LONG NAME} syntax
- Have Python REPL copyright() show all notice embeddings
The biggest technical challenge at the moment is working around
when Python tries to be too clever about filenames.
This commit is contained in:
Justine Tunney
parent
98ccbf44b1
commit
8af197560e
179 changed files with 6728 additions and 10430 deletions
99
third_party/python/Modules/selectmodule.c
vendored
99
third_party/python/Modules/selectmodule.c
vendored
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@ -5,10 +5,15 @@
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│ https://docs.python.org/3/license.html │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/mem/mem.h"
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#include "libc/nt/efi.h"
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#include "libc/runtime/gc.internal.h"
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#include "libc/sock/epoll.h"
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#include "libc/sock/select.h"
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#include "libc/sock/sock.h"
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#include "libc/sysv/consts/epoll.h"
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#include "libc/sysv/consts/poll.h"
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#include "third_party/python/Include/abstract.h"
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#include "third_party/python/Include/boolobject.h"
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@ -24,6 +29,7 @@
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#include "third_party/python/Include/pymem.h"
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#include "third_party/python/Include/pytime.h"
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#include "third_party/python/Include/structmember.h"
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#include "third_party/python/pyconfig.h"
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/* clang-format off */
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/* select - Module containing unix select(2) call.
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@ -150,27 +156,10 @@ set2list(fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
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return NULL;
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}
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#undef SELECT_USES_HEAP
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#if FD_SETSIZE > 1024
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#define SELECT_USES_HEAP
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#endif /* FD_SETSIZE > 1024 */
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static PyObject *
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select_select(PyObject *self, PyObject *args)
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{
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#ifdef SELECT_USES_HEAP
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pylist *rfd2obj, *wfd2obj, *efd2obj;
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#else /* !SELECT_USES_HEAP */
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/* XXX: All this should probably be implemented as follows:
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* - find the highest descriptor we're interested in
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* - add one
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* - that's the size
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* See: Stevens, APitUE, $12.5.1
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*/
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pylist rfd2obj[FD_SETSIZE + 1];
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pylist wfd2obj[FD_SETSIZE + 1];
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pylist efd2obj[FD_SETSIZE + 1];
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#endif /* SELECT_USES_HEAP */
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PyObject *ifdlist, *ofdlist, *efdlist;
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PyObject *ret = NULL;
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PyObject *timeout_obj = Py_None;
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@ -206,7 +195,6 @@ select_select(PyObject *self, PyObject *args)
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tvp = &tv;
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}
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#ifdef SELECT_USES_HEAP
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/* Allocate memory for the lists */
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rfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
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wfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
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@ -217,7 +205,6 @@ select_select(PyObject *self, PyObject *args)
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if (efd2obj) PyMem_DEL(efd2obj);
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return PyErr_NoMemory();
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}
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#endif /* SELECT_USES_HEAP */
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/* Convert sequences to fd_sets, and get maximum fd number
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* propagates the Python exception set in seq2set()
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@ -298,11 +285,9 @@ select_select(PyObject *self, PyObject *args)
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reap_obj(rfd2obj);
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reap_obj(wfd2obj);
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reap_obj(efd2obj);
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#ifdef SELECT_USES_HEAP
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PyMem_DEL(rfd2obj);
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PyMem_DEL(wfd2obj);
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PyMem_DEL(efd2obj);
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#endif /* SELECT_USES_HEAP */
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return ret;
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}
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@ -1198,12 +1183,6 @@ static int select_have_broken_poll(void)
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* Inspired by Twisted's _epoll.pyx and select.poll()
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*/
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#ifdef HAVE_SYS_EPOLL_H
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#include "libc/sysv/consts/epoll.h"
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#include "libc/sysv/consts/nr.h"
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#include "libc/sock/epoll.h"
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#endif
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typedef struct {
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PyObject_HEAD
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SOCKET epfd; /* epoll control file descriptor */
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@ -2476,51 +2455,29 @@ PyInit_select(void)
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#endif
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#ifdef HAVE_EPOLL
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Py_TYPE(&pyEpoll_Type) = &PyType_Type;
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if (PyType_Ready(&pyEpoll_Type) < 0)
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return NULL;
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Py_INCREF(&pyEpoll_Type);
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PyModule_AddObject(m, "epoll", (PyObject *) &pyEpoll_Type);
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PyModule_AddIntMacro(m, EPOLLIN);
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PyModule_AddIntMacro(m, EPOLLOUT);
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PyModule_AddIntMacro(m, EPOLLPRI);
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PyModule_AddIntMacro(m, EPOLLERR);
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PyModule_AddIntMacro(m, EPOLLHUP);
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#ifdef EPOLLRDHUP
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/* Kernel 2.6.17 */
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PyModule_AddIntMacro(m, EPOLLRDHUP);
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if (IsLinux() || IsWindows()) {
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Py_TYPE(&pyEpoll_Type) = &PyType_Type;
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if (PyType_Ready(&pyEpoll_Type) < 0)
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return NULL;
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Py_INCREF(&pyEpoll_Type);
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PyModule_AddObject(m, "epoll", (PyObject *)&pyEpoll_Type);
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PyModule_AddIntMacro(m, EPOLLIN);
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PyModule_AddIntMacro(m, EPOLLOUT);
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PyModule_AddIntMacro(m, EPOLLPRI);
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PyModule_AddIntMacro(m, EPOLLERR);
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PyModule_AddIntMacro(m, EPOLLHUP);
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PyModule_AddIntMacro(m, EPOLLET);
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PyModule_AddIntMacro(m, EPOLLEXCLUSIVE);
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PyModule_AddIntMacro(m, EPOLLRDNORM);
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PyModule_AddIntMacro(m, EPOLLRDBAND);
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PyModule_AddIntMacro(m, EPOLLWRNORM);
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PyModule_AddIntMacro(m, EPOLLWRBAND);
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PyModule_AddIntMacro(m, EPOLLMSG);
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PyModule_AddIntMacro(m, EPOLL_CLOEXEC);
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PyModule_AddIntMacro(m, EPOLLONESHOT);
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PyModule_AddIntMacro(m, EPOLLRDHUP);
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}
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#endif
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PyModule_AddIntMacro(m, EPOLLET);
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#ifdef EPOLLONESHOT
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/* Kernel 2.6.2+ */
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PyModule_AddIntMacro(m, EPOLLONESHOT);
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#endif
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#ifdef EPOLLEXCLUSIVE
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PyModule_AddIntMacro(m, EPOLLEXCLUSIVE);
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#endif
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#ifdef EPOLLRDNORM
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PyModule_AddIntMacro(m, EPOLLRDNORM);
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#endif
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#ifdef EPOLLRDBAND
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PyModule_AddIntMacro(m, EPOLLRDBAND);
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#endif
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#ifdef EPOLLWRNORM
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PyModule_AddIntMacro(m, EPOLLWRNORM);
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#endif
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#ifdef EPOLLWRBAND
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PyModule_AddIntMacro(m, EPOLLWRBAND);
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#endif
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#ifdef EPOLLMSG
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PyModule_AddIntMacro(m, EPOLLMSG);
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#endif
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#ifdef EPOLL_CLOEXEC
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PyModule_AddIntMacro(m, EPOLL_CLOEXEC);
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#endif
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#endif /* HAVE_EPOLL */
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#ifdef HAVE_KQUEUE
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kqueue_event_Type.tp_new = PyType_GenericNew;
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