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cpython/Include/internal/pycore_runtime.h at print-statement · python-emscripten/cpython · GitHub
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#ifndef
Py_INTERNAL_RUNTIME_H
#define
Py_INTERNAL_RUNTIME_H
#ifdef
__cplusplus
extern
"C"
{
#endif
#ifndef
Py_BUILD_CORE
# error
"this header requires Py_BUILD_CORE define"
#endif
#include
"pycore_atomic.h"
/* _Py_atomic_address */
#include
"pycore_gil.h"
// struct _gil_runtime_state
/* ceval state */
struct
_ceval_runtime_state
{
/* Request for checking signals. It is shared by all interpreters (see
bpo-40513). Any thread of any interpreter can receive a signal, but only
the main thread of the main interpreter can handle signals: see
_Py_ThreadCanHandleSignals(). */
_Py_atomic_int
signals_pending
;
#ifndef
EXPERIMENTAL_ISOLATED_SUBINTERPRETERS
struct
_gil_runtime_state
gil
;
#endif
};
/* GIL state */
struct
_gilstate_runtime_state
{
/* bpo-26558: Flag to disable PyGILState_Check().
If set to non-zero, PyGILState_Check() always return 1. */
int
check_enabled
;
/* Assuming the current thread holds the GIL, this is the
PyThreadState for the current thread. */
_Py_atomic_address
tstate_current
;
/* The single PyInterpreterState used by this process'
GILState implementation
*/
/* TODO: Given interp_main, it may be possible to kill this ref */
PyInterpreterState
*
autoInterpreterState
;
Py_tss_t
autoTSSkey
;
};
/* Runtime audit hook state */
typedef
struct
_Py_AuditHookEntry
{
struct
_Py_AuditHookEntry
*
next
;
Py_AuditHookFunction
hookCFunction
;
void
*
userData
;
}
_Py_AuditHookEntry
;
/* Full Python runtime state */
typedef
struct
pyruntimestate
{
/* Is running Py_PreInitialize()? */
int
preinitializing
;
/* Is Python preinitialized? Set to 1 by Py_PreInitialize() */
int
preinitialized
;
/* Is Python core initialized? Set to 1 by _Py_InitializeCore() */
int
core_initialized
;
/* Is Python fully initialized? Set to 1 by Py_Initialize() */
int
initialized
;
/* Set by Py_FinalizeEx(). Only reset to NULL if Py_Initialize()
is called again.
Use _PyRuntimeState_GetFinalizing() and _PyRuntimeState_SetFinalizing()
to access it, don't access it directly. */
_Py_atomic_address
_finalizing
;
struct
pyinterpreters
{
PyThread_type_lock
mutex
;
PyInterpreterState
*
head
;
PyInterpreterState
*
main
;
/* _next_interp_id is an auto-numbered sequence of small
integers. It gets initialized in _PyInterpreterState_Init(),
which is called in Py_Initialize(), and used in
PyInterpreterState_New(). A negative interpreter ID
indicates an error occurred. The main interpreter will
always have an ID of 0. Overflow results in a RuntimeError.
If that becomes a problem later then we can adjust, e.g. by
using a Python int. */
int64_t
next_id
;
}
interpreters
;
// XXX Remove this field once we have a tp_* slot.
struct
_xidregistry
{
PyThread_type_lock
mutex
;
struct
_xidregitem
*
head
;
}
xidregistry
;
unsigned long
main_thread
;
#define
NEXITFUNCS
32
void
(
*
exitfuncs
[
NEXITFUNCS
])(
void
);
int
nexitfuncs
;
struct
_ceval_runtime_state
ceval
;
struct
_gilstate_runtime_state
gilstate
;
PyPreConfig
preconfig
;
Py_OpenCodeHookFunction
open_code_hook
;
void
*
open_code_userdata
;
_Py_AuditHookEntry
*
audit_hook_head
;
// XXX Consolidate globals found via the check-c-globals script.
}
_PyRuntimeState
;
#define
_PyRuntimeState_INIT
\
{.preinitialized = 0, .core_initialized = 0, .initialized = 0}
/* Note: _PyRuntimeState_INIT sets other fields to 0/NULL */
PyAPI_DATA
(
_PyRuntimeState
)
_PyRuntime
;
PyAPI_FUNC
(
PyStatus
)
_PyRuntimeState_Init
(
_PyRuntimeState
*
runtime
);
PyAPI_FUNC
(
void
)
_PyRuntimeState_Fini
(
_PyRuntimeState
*
runtime
);
#ifdef
HAVE_FORK
extern
PyStatus
_PyRuntimeState_ReInitThreads
(
_PyRuntimeState
*
runtime
);
#endif
/* Initialize _PyRuntimeState.
Return NULL on success, or return an error message on failure. */
PyAPI_FUNC
(
PyStatus
)
_PyRuntime_Initialize
(
void
);
PyAPI_FUNC
(
void
)
_PyRuntime_Finalize
(
void
);
static
inline
PyThreadState
*
_PyRuntimeState_GetFinalizing
(
_PyRuntimeState
*
runtime
) {
return
(
PyThreadState
*
)
_Py_atomic_load_relaxed
(
&
runtime
->
_finalizing
);
}
static
inline
void
_PyRuntimeState_SetFinalizing
(
_PyRuntimeState
*
runtime
,
PyThreadState
*
tstate
) {
_Py_atomic_store_relaxed
(
&
runtime
->
_finalizing
, (
uintptr_t
)
tstate
);
}
#ifdef
__cplusplus
}
#endif
#endif
/* !Py_INTERNAL_RUNTIME_H */
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