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Path: ~//opt/alt/python312/include/python3.12/internal/

File Content: `pycore_condvar.h`

#ifndef Py_INTERNAL_CONDVAR_H
#define Py_INTERNAL_CONDVAR_H

#ifndef Py_BUILD_CORE
#  error "this header requires Py_BUILD_CORE define"
#endif

#ifndef _POSIX_THREADS
/* This means pthreads are not implemented in libc headers, hence the macro
   not present in unistd.h. But they still can be implemented as an external
   library (e.g. gnu pth in pthread emulation) */
# ifdef HAVE_PTHREAD_H
#  include <pthread.h> /* _POSIX_THREADS */
# endif
#endif

#ifdef _POSIX_THREADS
/*
 * POSIX support
 */
#define Py_HAVE_CONDVAR

#ifdef HAVE_PTHREAD_H
#  include <pthread.h>
#endif

#define PyMUTEX_T pthread_mutex_t
#define PyCOND_T pthread_cond_t

#elif defined(NT_THREADS)
/*
 * Windows (XP, 2003 server and later, as well as (hopefully) CE) support
 *
 * Emulated condition variables ones that work with XP and later, plus
 * example native support on VISTA and onwards.
 */
#define Py_HAVE_CONDVAR

/* include windows if it hasn't been done before */
#ifndef WIN32_LEAN_AND_MEAN
#  define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>              // CRITICAL_SECTION

/* options */
/* non-emulated condition variables are provided for those that want
 * to target Windows Vista.  Modify this macro to enable them.
 */
#ifndef _PY_EMULATED_WIN_CV
#define _PY_EMULATED_WIN_CV 1  /* use emulated condition variables */
#endif

/* fall back to emulation if not targeting Vista */
#if !defined NTDDI_VISTA || NTDDI_VERSION < NTDDI_VISTA
#undef _PY_EMULATED_WIN_CV
#define _PY_EMULATED_WIN_CV 1
#endif

#if _PY_EMULATED_WIN_CV

typedef CRITICAL_SECTION PyMUTEX_T;

/* The ConditionVariable object.  From XP onwards it is easily emulated
   with a Semaphore.
   Semaphores are available on Windows XP (2003 server) and later.
   We use a Semaphore rather than an auto-reset event, because although
   an auto-reset event might appear to solve the lost-wakeup bug (race
   condition between releasing the outer lock and waiting) because it
   maintains state even though a wait hasn't happened, there is still
   a lost wakeup problem if more than one thread are interrupted in the
   critical place.  A semaphore solves that, because its state is
   counted, not Boolean.
   Because it is ok to signal a condition variable with no one
   waiting, we need to keep track of the number of
   waiting threads.  Otherwise, the semaphore's state could rise
   without bound.  This also helps reduce the number of "spurious wakeups"
   that would otherwise happen.
 */

typedef struct _PyCOND_T
{
    HANDLE sem;
    int waiting; /* to allow PyCOND_SIGNAL to be a no-op */
} PyCOND_T;

#else /* !_PY_EMULATED_WIN_CV */

/* Use native Win7 primitives if build target is Win7 or higher */

/* SRWLOCK is faster and better than CriticalSection */
typedef SRWLOCK PyMUTEX_T;

typedef CONDITION_VARIABLE  PyCOND_T;

#endif /* _PY_EMULATED_WIN_CV */

#endif /* _POSIX_THREADS, NT_THREADS */

#endif /* Py_INTERNAL_CONDVAR_H */

Edit Rename Chmod Delete

FILE FOLDER

Name	Size	Permission
pycore_abstract.h	611 bytes	0644
pycore_asdl.h	3035 bytes	0644
pycore_ast.h	31288 bytes	0644
pycore_ast_state.h	6749 bytes	0644
pycore_atexit.h	1149 bytes	0644
pycore_atomic.h	16979 bytes	0644
pycore_atomic_funcs.h	2438 bytes	0644
pycore_bitutils.h	6062 bytes	0644
pycore_blocks_output_buffer.h	8688 bytes	0644
pycore_bytes_methods.h	3384 bytes	0644
pycore_bytesobject.h	1339 bytes	0644
pycore_call.h	3920 bytes	0644
pycore_ceval.h	5265 bytes	0644
pycore_ceval_state.h	2744 bytes	0644
pycore_code.h	15835 bytes	0644
pycore_compile.h	3453 bytes	0644
pycore_condvar.h	2909 bytes	0644
pycore_context.h	1301 bytes	0644
pycore_descrobject.h	499 bytes	0644
pycore_dict.h	6384 bytes	0644
pycore_dict_state.h	1095 bytes	0644
pycore_dtoa.h	1615 bytes	0644
pycore_emscripten_signal.h	562 bytes	0644
pycore_exceptions.h	842 bytes	0644
pycore_faulthandler.h	2220 bytes	0644
pycore_fileutils.h	7910 bytes	0644
pycore_fileutils_windows.h	2724 bytes	0644
pycore_floatobject.h	1578 bytes	0644
pycore_flowgraph.h	4630 bytes	0644
pycore_format.h	480 bytes	0644
pycore_frame.h	9255 bytes	0644
pycore_function.h	611 bytes	0644
pycore_gc.h	7658 bytes	0644
pycore_genobject.h	1186 bytes	0644
pycore_getopt.h	490 bytes	0644
pycore_gil.h	1565 bytes	0644
pycore_global_objects.h	3035 bytes	0644
pycore_global_objects_fini_generated.h	115361 bytes	0644
pycore_global_strings.h	25438 bytes	0644
pycore_hamt.h	3742 bytes	0644
pycore_hashtable.h	4286 bytes	0644
pycore_import.h	6358 bytes	0644
pycore_initconfig.h	5706 bytes	0644
pycore_instruments.h	2998 bytes	0644
pycore_interp.h	9086 bytes	0644
pycore_intrinsics.h	1397 bytes	0644
pycore_list.h	1980 bytes	0644
pycore_long.h	7805 bytes	0644
pycore_memoryobject.h	383 bytes	0644
pycore_moduleobject.h	1192 bytes	0644
pycore_namespace.h	392 bytes	0644
pycore_object.h	14917 bytes	0644
pycore_object_state.h	1016 bytes	0644
pycore_obmalloc.h	27284 bytes	0644
pycore_obmalloc_init.h	2085 bytes	0644
pycore_opcode.h	20081 bytes	0644
pycore_opcode_utils.h	2686 bytes	0644
pycore_parser.h	1358 bytes	0644
pycore_pathconfig.h	606 bytes	0644
pycore_pyarena.h	2733 bytes	0644
pycore_pyerrors.h	3110 bytes	0644
pycore_pyhash.h	709 bytes	0644
pycore_pylifecycle.h	3365 bytes	0644
pycore_pymath.h	8600 bytes	0644
pycore_pymem.h	3040 bytes	0644
pycore_pymem_init.h	2654 bytes	0644
pycore_pystate.h	4982 bytes	0644
pycore_pythread.h	2075 bytes	0644
pycore_range.h	346 bytes	0644
pycore_runtime.h	8429 bytes	0644
pycore_runtime_init.h	5912 bytes	0644
pycore_runtime_init_generated.h	45751 bytes	0644
pycore_signal.h	2611 bytes	0644
pycore_sliceobject.h	414 bytes	0644
pycore_strhex.h	937 bytes	0644
pycore_structseq.h	923 bytes	0644
pycore_symtable.h	7035 bytes	0644
pycore_sysmodule.h	999 bytes	0644
pycore_time.h	388 bytes	0644
pycore_token.h	3050 bytes	0644
pycore_traceback.h	3501 bytes	0644
pycore_tracemalloc.h	3075 bytes	0644
pycore_tuple.h	2197 bytes	0644
pycore_typeobject.h	4731 bytes	0644
pycore_typevarobject.h	763 bytes	0644
pycore_ucnhash.h	898 bytes	0644
pycore_unicodeobject.h	2657 bytes	0644
pycore_unicodeobject_generated.h	125516 bytes	0644
pycore_unionobject.h	682 bytes	0644
pycore_warnings.h	740 bytes	0644

File Content: pycore_condvar.h

File Content: `pycore_condvar.h`