cosmopolitan/third_party/python/Python/thread_foobar.h
Justine Tunney b420ed8248 Undiamond Python headers
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
2021-08-12 14:07:40 -07:00

135 lines
2.3 KiB
C

#include "libc/calls/calls.h"
/* clang-format off */
/*
* Initialization.
*/
static void
PyThread__init_thread(void)
{
}
/*
* Thread support.
*/
long
PyThread_start_new_thread(void (*func)(void *), void *arg)
{
int success = 0; /* init not needed when SOLARIS_THREADS and */
/* C_THREADS implemented properly */
dprintf(("PyThread_start_new_thread called\n"));
if (!initialized)
PyThread_init_thread();
return success < 0 ? -1 : 0;
}
long
PyThread_get_thread_ident(void)
{
if (!initialized)
PyThread_init_thread();
}
void
PyThread_exit_thread(void)
{
dprintf(("PyThread_exit_thread called\n"));
if (!initialized)
exit(0);
}
/*
* Lock support.
*/
PyThread_type_lock
PyThread_allocate_lock(void)
{
dprintf(("PyThread_allocate_lock called\n"));
if (!initialized)
PyThread_init_thread();
dprintf(("PyThread_allocate_lock() -> %p\n", lock));
return (PyThread_type_lock) lock;
}
void
PyThread_free_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_free_lock(%p) called\n", lock));
}
int
PyThread_acquire_lock(PyThread_type_lock lock, int waitflag)
{
return PyThread_acquire_lock_timed(lock, waitflag ? -1 : 0, 0);
}
PyLockStatus
PyThread_acquire_lock_timed(PyThread_type_lock lock, PY_TIMEOUT_T microseconds,
int intr_flag)
{
int success;
dprintf(("PyThread_acquire_lock_timed(%p, %lld, %d) called\n", lock, microseconds, intr_flag));
dprintf(("PyThread_acquire_lock_timed(%p, %lld, %d) -> %d\n",
lock, microseconds, intr_flag, success));
return success;
}
void
PyThread_release_lock(PyThread_type_lock lock)
{
dprintf(("PyThread_release_lock(%p) called\n", lock));
}
/* The following are only needed if native TLS support exists */
#define Py_HAVE_NATIVE_TLS
#ifdef Py_HAVE_NATIVE_TLS
int
PyThread_create_key(void)
{
int result;
return result;
}
void
PyThread_delete_key(int key)
{
}
int
PyThread_set_key_value(int key, void *value)
{
int ok;
/* A failure in this case returns -1 */
if (!ok)
return -1;
return 0;
}
void *
PyThread_get_key_value(int key)
{
void *result;
return result;
}
void
PyThread_delete_key_value(int key)
{
}
void
PyThread_ReInitTLS(void)
{
}
#endif