mirror of
https://github.com/python/cpython.git
synced 2025-07-21 10:15:46 +00:00
ba283e2b7f
[ 1181301 ] make float packing copy bytes when they can
which hasn't been reviewed, despite numerous threats to check it in
anyway if noone reviews it. Please read the diff on the checkin list,
at least!
The basic idea is to examine the bytes of some 'probe values' to see if
the current platform is a IEEE 754-ish platform, and if so
_PyFloat_{Pack,Unpack}{4,8} just copy bytes around.
The rest is hair for testing, and tests.
153 lines
5.5 KiB
C
153 lines
5.5 KiB
C
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/* Interfaces to parse and execute pieces of python code */
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#ifndef Py_PYTHONRUN_H
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#define Py_PYTHONRUN_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define PyCF_MASK (CO_FUTURE_DIVISION)
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#define PyCF_MASK_OBSOLETE (CO_GENERATOR_ALLOWED | CO_NESTED)
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#define PyCF_SOURCE_IS_UTF8 0x0100
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#define PyCF_DONT_IMPLY_DEDENT 0x0200
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typedef struct {
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int cf_flags; /* bitmask of CO_xxx flags relevant to future */
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} PyCompilerFlags;
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PyAPI_FUNC(void) Py_SetProgramName(char *);
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PyAPI_FUNC(char *) Py_GetProgramName(void);
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PyAPI_FUNC(void) Py_SetPythonHome(char *);
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PyAPI_FUNC(char *) Py_GetPythonHome(void);
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PyAPI_FUNC(void) Py_Initialize(void);
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PyAPI_FUNC(void) Py_InitializeEx(int);
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PyAPI_FUNC(void) Py_Finalize(void);
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PyAPI_FUNC(int) Py_IsInitialized(void);
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PyAPI_FUNC(PyThreadState *) Py_NewInterpreter(void);
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PyAPI_FUNC(void) Py_EndInterpreter(PyThreadState *);
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PyAPI_FUNC(int) PyRun_AnyFile(FILE *, const char *);
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PyAPI_FUNC(int) PyRun_AnyFileEx(FILE *, const char *, int);
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PyAPI_FUNC(int) PyRun_AnyFileFlags(FILE *, const char *, PyCompilerFlags *);
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PyAPI_FUNC(int) PyRun_AnyFileExFlags(FILE *, const char *, int, PyCompilerFlags *);
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PyAPI_FUNC(int) PyRun_SimpleString(const char *);
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PyAPI_FUNC(int) PyRun_SimpleStringFlags(const char *, PyCompilerFlags *);
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PyAPI_FUNC(int) PyRun_SimpleFile(FILE *, const char *);
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PyAPI_FUNC(int) PyRun_SimpleFileEx(FILE *, const char *, int);
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PyAPI_FUNC(int) PyRun_SimpleFileExFlags(FILE *, const char *, int, PyCompilerFlags *);
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PyAPI_FUNC(int) PyRun_InteractiveOne(FILE *, const char *);
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PyAPI_FUNC(int) PyRun_InteractiveOneFlags(FILE *, const char *, PyCompilerFlags *);
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PyAPI_FUNC(int) PyRun_InteractiveLoop(FILE *, const char *);
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PyAPI_FUNC(int) PyRun_InteractiveLoopFlags(FILE *, const char *, PyCompilerFlags *);
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PyAPI_FUNC(struct _node *) PyParser_SimpleParseString(const char *, int);
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PyAPI_FUNC(struct _node *) PyParser_SimpleParseFile(FILE *, const char *, int);
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PyAPI_FUNC(struct _node *) PyParser_SimpleParseStringFlags(const char *, int, int);
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PyAPI_FUNC(struct _node *) PyParser_SimpleParseStringFlagsFilename(const char *,
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const char *,
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int,
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int);
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PyAPI_FUNC(struct _node *) PyParser_SimpleParseFileFlags(FILE *, const char *,
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int, int);
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PyAPI_FUNC(PyObject *) PyRun_String(const char *, int, PyObject *, PyObject *);
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PyAPI_FUNC(PyObject *) PyRun_File(FILE *, const char *, int, PyObject *, PyObject *);
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PyAPI_FUNC(PyObject *) PyRun_FileEx(FILE *, const char *, int,
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PyObject *, PyObject *, int);
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PyAPI_FUNC(PyObject *) PyRun_StringFlags(const char *, int, PyObject *, PyObject *,
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PyCompilerFlags *);
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PyAPI_FUNC(PyObject *) PyRun_FileFlags(FILE *, const char *, int, PyObject *,
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PyObject *, PyCompilerFlags *);
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PyAPI_FUNC(PyObject *) PyRun_FileExFlags(FILE *, const char *, int, PyObject *,
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PyObject *, int, PyCompilerFlags *);
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PyAPI_FUNC(PyObject *) Py_CompileString(const char *, const char *, int);
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PyAPI_FUNC(PyObject *) Py_CompileStringFlags(const char *, const char *, int,
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PyCompilerFlags *);
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PyAPI_FUNC(struct symtable *) Py_SymtableString(const char *, const char *, int);
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PyAPI_FUNC(void) PyErr_Print(void);
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PyAPI_FUNC(void) PyErr_PrintEx(int);
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PyAPI_FUNC(void) PyErr_Display(PyObject *, PyObject *, PyObject *);
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PyAPI_FUNC(int) Py_AtExit(void (*func)(void));
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PyAPI_FUNC(void) Py_Exit(int);
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PyAPI_FUNC(int) Py_FdIsInteractive(FILE *, const char *);
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/* Bootstrap */
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PyAPI_FUNC(int) Py_Main(int argc, char **argv);
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/* In getpath.c */
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PyAPI_FUNC(char *) Py_GetProgramFullPath(void);
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PyAPI_FUNC(char *) Py_GetPrefix(void);
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PyAPI_FUNC(char *) Py_GetExecPrefix(void);
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PyAPI_FUNC(char *) Py_GetPath(void);
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/* In their own files */
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PyAPI_FUNC(const char *) Py_GetVersion(void);
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PyAPI_FUNC(const char *) Py_GetPlatform(void);
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PyAPI_FUNC(const char *) Py_GetCopyright(void);
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PyAPI_FUNC(const char *) Py_GetCompiler(void);
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PyAPI_FUNC(const char *) Py_GetBuildInfo(void);
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/* Internal -- various one-time initializations */
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PyAPI_FUNC(PyObject *) _PyBuiltin_Init(void);
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PyAPI_FUNC(PyObject *) _PySys_Init(void);
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PyAPI_FUNC(void) _PyImport_Init(void);
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PyAPI_FUNC(void) _PyExc_Init(void);
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PyAPI_FUNC(void) _PyImportHooks_Init(void);
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PyAPI_FUNC(int) _PyFrame_Init(void);
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PyAPI_FUNC(int) _PyInt_Init(void);
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PyAPI_FUNC(void) _PyFloat_Init(void);
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/* Various internal finalizers */
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PyAPI_FUNC(void) _PyExc_Fini(void);
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PyAPI_FUNC(void) _PyImport_Fini(void);
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PyAPI_FUNC(void) PyMethod_Fini(void);
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PyAPI_FUNC(void) PyFrame_Fini(void);
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PyAPI_FUNC(void) PyCFunction_Fini(void);
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PyAPI_FUNC(void) PyTuple_Fini(void);
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PyAPI_FUNC(void) PyList_Fini(void);
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PyAPI_FUNC(void) PyString_Fini(void);
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PyAPI_FUNC(void) PyInt_Fini(void);
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PyAPI_FUNC(void) PyFloat_Fini(void);
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PyAPI_FUNC(void) PyOS_FiniInterrupts(void);
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/* Stuff with no proper home (yet) */
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PyAPI_FUNC(char *) PyOS_Readline(FILE *, FILE *, char *);
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PyAPI_DATA(int) (*PyOS_InputHook)(void);
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PyAPI_DATA(char) *(*PyOS_ReadlineFunctionPointer)(FILE *, FILE *, char *);
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PyAPI_DATA(PyThreadState*) _PyOS_ReadlineTState;
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/* Stack size, in "pointers" (so we get extra safety margins
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on 64-bit platforms). On a 32-bit platform, this translates
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to a 8k margin. */
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#define PYOS_STACK_MARGIN 2048
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#if defined(WIN32) && !defined(MS_WIN64) && defined(_MSC_VER)
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/* Enable stack checking under Microsoft C */
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#define USE_STACKCHECK
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#endif
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#ifdef USE_STACKCHECK
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/* Check that we aren't overflowing our stack */
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PyAPI_FUNC(int) PyOS_CheckStack(void);
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#endif
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/* Signals */
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typedef void (*PyOS_sighandler_t)(int);
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PyAPI_FUNC(PyOS_sighandler_t) PyOS_getsig(int);
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PyAPI_FUNC(PyOS_sighandler_t) PyOS_setsig(int, PyOS_sighandler_t);
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_PYTHONRUN_H */
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