mirror of
https://github.com/python/cpython.git
synced 2025-10-31 10:26:02 +00:00
7edb5dfcbc
module name anymore, only work on unicode strings. Therefore it doesn't truncate module names with embedded NUL characters, or fail if the module name contains surrogate characters (UTF-8 encoder fails on a surrogate character). Patch written by Alexander Belopolsky.
905 lines
27 KiB
C
905 lines
27 KiB
C
#include "Python.h"
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#include "frameobject.h"
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#include "rotatingtree.h"
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#if !defined(HAVE_LONG_LONG)
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#error "This module requires long longs!"
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#endif
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/*** Selection of a high-precision timer ***/
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#ifdef MS_WINDOWS
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#include <windows.h>
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static PY_LONG_LONG
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hpTimer(void)
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{
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LARGE_INTEGER li;
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QueryPerformanceCounter(&li);
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return li.QuadPart;
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}
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static double
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hpTimerUnit(void)
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{
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LARGE_INTEGER li;
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if (QueryPerformanceFrequency(&li))
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return 1.0 / li.QuadPart;
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else
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return 0.000001; /* unlikely */
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}
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#else /* !MS_WINDOWS */
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#ifndef HAVE_GETTIMEOFDAY
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#error "This module requires gettimeofday() on non-Windows platforms!"
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#endif
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#if (defined(PYOS_OS2) && defined(PYCC_GCC))
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#include <sys/time.h>
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#else
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#include <sys/resource.h>
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#include <sys/times.h>
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#endif
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static PY_LONG_LONG
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hpTimer(void)
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{
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struct timeval tv;
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PY_LONG_LONG ret;
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#ifdef GETTIMEOFDAY_NO_TZ
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gettimeofday(&tv);
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#else
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gettimeofday(&tv, (struct timezone *)NULL);
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#endif
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ret = tv.tv_sec;
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ret = ret * 1000000 + tv.tv_usec;
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return ret;
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}
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static double
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hpTimerUnit(void)
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{
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return 0.000001;
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}
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#endif /* MS_WINDOWS */
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/************************************************************/
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/* Written by Brett Rosen and Ted Czotter */
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struct _ProfilerEntry;
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/* represents a function called from another function */
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typedef struct _ProfilerSubEntry {
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rotating_node_t header;
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PY_LONG_LONG tt;
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PY_LONG_LONG it;
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long callcount;
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long recursivecallcount;
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long recursionLevel;
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} ProfilerSubEntry;
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/* represents a function or user defined block */
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typedef struct _ProfilerEntry {
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rotating_node_t header;
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PyObject *userObj; /* PyCodeObject, or a descriptive str for builtins */
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PY_LONG_LONG tt; /* total time in this entry */
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PY_LONG_LONG it; /* inline time in this entry (not in subcalls) */
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long callcount; /* how many times this was called */
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long recursivecallcount; /* how many times called recursively */
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long recursionLevel;
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rotating_node_t *calls;
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} ProfilerEntry;
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typedef struct _ProfilerContext {
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PY_LONG_LONG t0;
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PY_LONG_LONG subt;
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struct _ProfilerContext *previous;
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ProfilerEntry *ctxEntry;
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} ProfilerContext;
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typedef struct {
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PyObject_HEAD
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rotating_node_t *profilerEntries;
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ProfilerContext *currentProfilerContext;
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ProfilerContext *freelistProfilerContext;
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int flags;
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PyObject *externalTimer;
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double externalTimerUnit;
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} ProfilerObject;
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#define POF_ENABLED 0x001
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#define POF_SUBCALLS 0x002
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#define POF_BUILTINS 0x004
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#define POF_NOMEMORY 0x100
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static PyTypeObject PyProfiler_Type;
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#define PyProfiler_Check(op) PyObject_TypeCheck(op, &PyProfiler_Type)
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#define PyProfiler_CheckExact(op) (Py_TYPE(op) == &PyProfiler_Type)
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/*** External Timers ***/
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#define DOUBLE_TIMER_PRECISION 4294967296.0
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static PyObject *empty_tuple;
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static PY_LONG_LONG CallExternalTimer(ProfilerObject *pObj)
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{
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PY_LONG_LONG result;
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PyObject *o = PyObject_Call(pObj->externalTimer, empty_tuple, NULL);
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if (o == NULL) {
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PyErr_WriteUnraisable(pObj->externalTimer);
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return 0;
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}
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if (pObj->externalTimerUnit > 0.0) {
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/* interpret the result as an integer that will be scaled
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in profiler_getstats() */
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result = PyLong_AsLongLong(o);
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}
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else {
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/* interpret the result as a double measured in seconds.
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As the profiler works with PY_LONG_LONG internally
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we convert it to a large integer */
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double val = PyFloat_AsDouble(o);
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/* error handling delayed to the code below */
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result = (PY_LONG_LONG) (val * DOUBLE_TIMER_PRECISION);
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}
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Py_DECREF(o);
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if (PyErr_Occurred()) {
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PyErr_WriteUnraisable(pObj->externalTimer);
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return 0;
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}
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return result;
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}
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#define CALL_TIMER(pObj) ((pObj)->externalTimer ? \
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CallExternalTimer(pObj) : \
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hpTimer())
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/*** ProfilerObject ***/
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static PyObject *
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normalizeUserObj(PyObject *obj)
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{
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PyCFunctionObject *fn;
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if (!PyCFunction_Check(obj)) {
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Py_INCREF(obj);
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return obj;
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}
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/* Replace built-in function objects with a descriptive string
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because of built-in methods -- keeping a reference to
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__self__ is probably not a good idea. */
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fn = (PyCFunctionObject *)obj;
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if (fn->m_self == NULL) {
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/* built-in function: look up the module name */
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PyObject *mod = fn->m_module;
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PyObject *modname = NULL;
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if (mod != NULL) {
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if (PyUnicode_Check(mod)) {
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modname = mod;
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Py_INCREF(modname);
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}
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else if (PyModule_Check(mod)) {
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modname = PyModule_GetNameObject(mod);
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if (modname == NULL)
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PyErr_Clear();
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}
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}
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if (modname != NULL) {
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if (PyUnicode_CompareWithASCIIString(modname, "builtins") != 0) {
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PyObject *result;
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result = PyUnicode_FromFormat("<%U.%s>", modname,
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fn->m_ml->ml_name);
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Py_DECREF(modname);
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return result;
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}
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Py_DECREF(modname);
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}
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return PyUnicode_FromFormat("<%s>", fn->m_ml->ml_name);
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}
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else {
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/* built-in method: try to return
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repr(getattr(type(__self__), __name__))
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*/
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PyObject *self = fn->m_self;
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PyObject *name = PyUnicode_FromString(fn->m_ml->ml_name);
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if (name != NULL) {
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PyObject *mo = _PyType_Lookup(Py_TYPE(self), name);
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Py_XINCREF(mo);
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Py_DECREF(name);
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if (mo != NULL) {
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PyObject *res = PyObject_Repr(mo);
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Py_DECREF(mo);
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if (res != NULL)
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return res;
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}
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}
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PyErr_Clear();
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return PyUnicode_FromFormat("<built-in method %s>",
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fn->m_ml->ml_name);
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}
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}
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static ProfilerEntry*
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newProfilerEntry(ProfilerObject *pObj, void *key, PyObject *userObj)
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{
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ProfilerEntry *self;
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self = (ProfilerEntry*) malloc(sizeof(ProfilerEntry));
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if (self == NULL) {
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pObj->flags |= POF_NOMEMORY;
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return NULL;
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}
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userObj = normalizeUserObj(userObj);
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if (userObj == NULL) {
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PyErr_Clear();
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free(self);
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pObj->flags |= POF_NOMEMORY;
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return NULL;
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}
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self->header.key = key;
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self->userObj = userObj;
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self->tt = 0;
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self->it = 0;
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self->callcount = 0;
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self->recursivecallcount = 0;
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self->recursionLevel = 0;
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self->calls = EMPTY_ROTATING_TREE;
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RotatingTree_Add(&pObj->profilerEntries, &self->header);
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return self;
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}
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static ProfilerEntry*
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getEntry(ProfilerObject *pObj, void *key)
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{
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return (ProfilerEntry*) RotatingTree_Get(&pObj->profilerEntries, key);
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}
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static ProfilerSubEntry *
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getSubEntry(ProfilerObject *pObj, ProfilerEntry *caller, ProfilerEntry* entry)
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{
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return (ProfilerSubEntry*) RotatingTree_Get(&caller->calls,
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(void *)entry);
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}
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static ProfilerSubEntry *
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newSubEntry(ProfilerObject *pObj, ProfilerEntry *caller, ProfilerEntry* entry)
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{
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ProfilerSubEntry *self;
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self = (ProfilerSubEntry*) malloc(sizeof(ProfilerSubEntry));
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if (self == NULL) {
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pObj->flags |= POF_NOMEMORY;
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return NULL;
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}
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self->header.key = (void *)entry;
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self->tt = 0;
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self->it = 0;
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self->callcount = 0;
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self->recursivecallcount = 0;
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self->recursionLevel = 0;
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RotatingTree_Add(&caller->calls, &self->header);
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return self;
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}
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static int freeSubEntry(rotating_node_t *header, void *arg)
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{
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ProfilerSubEntry *subentry = (ProfilerSubEntry*) header;
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free(subentry);
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return 0;
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}
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static int freeEntry(rotating_node_t *header, void *arg)
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{
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ProfilerEntry *entry = (ProfilerEntry*) header;
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RotatingTree_Enum(entry->calls, freeSubEntry, NULL);
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Py_DECREF(entry->userObj);
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free(entry);
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return 0;
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}
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static void clearEntries(ProfilerObject *pObj)
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{
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RotatingTree_Enum(pObj->profilerEntries, freeEntry, NULL);
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pObj->profilerEntries = EMPTY_ROTATING_TREE;
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/* release the memory hold by the ProfilerContexts */
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if (pObj->currentProfilerContext) {
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free(pObj->currentProfilerContext);
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pObj->currentProfilerContext = NULL;
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}
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while (pObj->freelistProfilerContext) {
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ProfilerContext *c = pObj->freelistProfilerContext;
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pObj->freelistProfilerContext = c->previous;
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free(c);
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}
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pObj->freelistProfilerContext = NULL;
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}
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static void
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initContext(ProfilerObject *pObj, ProfilerContext *self, ProfilerEntry *entry)
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{
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self->ctxEntry = entry;
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self->subt = 0;
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self->previous = pObj->currentProfilerContext;
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pObj->currentProfilerContext = self;
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++entry->recursionLevel;
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if ((pObj->flags & POF_SUBCALLS) && self->previous) {
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/* find or create an entry for me in my caller's entry */
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ProfilerEntry *caller = self->previous->ctxEntry;
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ProfilerSubEntry *subentry = getSubEntry(pObj, caller, entry);
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if (subentry == NULL)
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subentry = newSubEntry(pObj, caller, entry);
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if (subentry)
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++subentry->recursionLevel;
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}
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self->t0 = CALL_TIMER(pObj);
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}
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static void
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Stop(ProfilerObject *pObj, ProfilerContext *self, ProfilerEntry *entry)
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{
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PY_LONG_LONG tt = CALL_TIMER(pObj) - self->t0;
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PY_LONG_LONG it = tt - self->subt;
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if (self->previous)
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self->previous->subt += tt;
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pObj->currentProfilerContext = self->previous;
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if (--entry->recursionLevel == 0)
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entry->tt += tt;
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else
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++entry->recursivecallcount;
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entry->it += it;
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entry->callcount++;
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if ((pObj->flags & POF_SUBCALLS) && self->previous) {
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/* find or create an entry for me in my caller's entry */
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ProfilerEntry *caller = self->previous->ctxEntry;
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ProfilerSubEntry *subentry = getSubEntry(pObj, caller, entry);
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if (subentry) {
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if (--subentry->recursionLevel == 0)
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subentry->tt += tt;
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else
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++subentry->recursivecallcount;
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subentry->it += it;
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++subentry->callcount;
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}
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}
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}
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static void
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ptrace_enter_call(PyObject *self, void *key, PyObject *userObj)
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{
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/* entering a call to the function identified by 'key'
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(which can be a PyCodeObject or a PyMethodDef pointer) */
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ProfilerObject *pObj = (ProfilerObject*)self;
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ProfilerEntry *profEntry;
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ProfilerContext *pContext;
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/* In the case of entering a generator expression frame via a
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* throw (gen_send_ex(.., 1)), we may already have an
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* Exception set here. We must not mess around with this
|
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* exception, and some of the code under here assumes that
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* PyErr_* is its own to mess around with, so we have to
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* save and restore any current exception. */
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PyObject *last_type, *last_value, *last_tb;
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PyErr_Fetch(&last_type, &last_value, &last_tb);
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profEntry = getEntry(pObj, key);
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if (profEntry == NULL) {
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profEntry = newProfilerEntry(pObj, key, userObj);
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if (profEntry == NULL)
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goto restorePyerr;
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}
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/* grab a ProfilerContext out of the free list */
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pContext = pObj->freelistProfilerContext;
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if (pContext) {
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pObj->freelistProfilerContext = pContext->previous;
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}
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else {
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/* free list exhausted, allocate a new one */
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pContext = (ProfilerContext*)
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malloc(sizeof(ProfilerContext));
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if (pContext == NULL) {
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pObj->flags |= POF_NOMEMORY;
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goto restorePyerr;
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}
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}
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initContext(pObj, pContext, profEntry);
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restorePyerr:
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PyErr_Restore(last_type, last_value, last_tb);
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}
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static void
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ptrace_leave_call(PyObject *self, void *key)
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{
|
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/* leaving a call to the function identified by 'key' */
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ProfilerObject *pObj = (ProfilerObject*)self;
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ProfilerEntry *profEntry;
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ProfilerContext *pContext;
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pContext = pObj->currentProfilerContext;
|
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if (pContext == NULL)
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return;
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profEntry = getEntry(pObj, key);
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if (profEntry) {
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Stop(pObj, pContext, profEntry);
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}
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else {
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pObj->currentProfilerContext = pContext->previous;
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}
|
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/* put pContext into the free list */
|
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pContext->previous = pObj->freelistProfilerContext;
|
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pObj->freelistProfilerContext = pContext;
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}
|
|
|
|
static int
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profiler_callback(PyObject *self, PyFrameObject *frame, int what,
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PyObject *arg)
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|
{
|
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switch (what) {
|
|
|
|
/* the 'frame' of a called function is about to start its execution */
|
|
case PyTrace_CALL:
|
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ptrace_enter_call(self, (void *)frame->f_code,
|
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(PyObject *)frame->f_code);
|
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break;
|
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|
|
/* the 'frame' of a called function is about to finish
|
|
(either normally or with an exception) */
|
|
case PyTrace_RETURN:
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ptrace_leave_call(self, (void *)frame->f_code);
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break;
|
|
|
|
/* case PyTrace_EXCEPTION:
|
|
If the exception results in the function exiting, a
|
|
PyTrace_RETURN event will be generated, so we don't need to
|
|
handle it. */
|
|
|
|
#ifdef PyTrace_C_CALL /* not defined in Python <= 2.3 */
|
|
/* the Python function 'frame' is issuing a call to the built-in
|
|
function 'arg' */
|
|
case PyTrace_C_CALL:
|
|
if ((((ProfilerObject *)self)->flags & POF_BUILTINS)
|
|
&& PyCFunction_Check(arg)) {
|
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ptrace_enter_call(self,
|
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((PyCFunctionObject *)arg)->m_ml,
|
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arg);
|
|
}
|
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break;
|
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|
|
/* the call to the built-in function 'arg' is returning into its
|
|
caller 'frame' */
|
|
case PyTrace_C_RETURN: /* ...normally */
|
|
case PyTrace_C_EXCEPTION: /* ...with an exception set */
|
|
if ((((ProfilerObject *)self)->flags & POF_BUILTINS)
|
|
&& PyCFunction_Check(arg)) {
|
|
ptrace_leave_call(self,
|
|
((PyCFunctionObject *)arg)->m_ml);
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pending_exception(ProfilerObject *pObj)
|
|
{
|
|
if (pObj->flags & POF_NOMEMORY) {
|
|
pObj->flags -= POF_NOMEMORY;
|
|
PyErr_SetString(PyExc_MemoryError,
|
|
"memory was exhausted while profiling");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/************************************************************/
|
|
|
|
static PyStructSequence_Field profiler_entry_fields[] = {
|
|
{"code", "code object or built-in function name"},
|
|
{"callcount", "how many times this was called"},
|
|
{"reccallcount", "how many times called recursively"},
|
|
{"totaltime", "total time in this entry"},
|
|
{"inlinetime", "inline time in this entry (not in subcalls)"},
|
|
{"calls", "details of the calls"},
|
|
{0}
|
|
};
|
|
|
|
static PyStructSequence_Field profiler_subentry_fields[] = {
|
|
{"code", "called code object or built-in function name"},
|
|
{"callcount", "how many times this is called"},
|
|
{"reccallcount", "how many times this is called recursively"},
|
|
{"totaltime", "total time spent in this call"},
|
|
{"inlinetime", "inline time (not in further subcalls)"},
|
|
{0}
|
|
};
|
|
|
|
static PyStructSequence_Desc profiler_entry_desc = {
|
|
"_lsprof.profiler_entry", /* name */
|
|
NULL, /* doc */
|
|
profiler_entry_fields,
|
|
6
|
|
};
|
|
|
|
static PyStructSequence_Desc profiler_subentry_desc = {
|
|
"_lsprof.profiler_subentry", /* name */
|
|
NULL, /* doc */
|
|
profiler_subentry_fields,
|
|
5
|
|
};
|
|
|
|
static int initialized;
|
|
static PyTypeObject StatsEntryType;
|
|
static PyTypeObject StatsSubEntryType;
|
|
|
|
|
|
typedef struct {
|
|
PyObject *list;
|
|
PyObject *sublist;
|
|
double factor;
|
|
} statscollector_t;
|
|
|
|
static int statsForSubEntry(rotating_node_t *node, void *arg)
|
|
{
|
|
ProfilerSubEntry *sentry = (ProfilerSubEntry*) node;
|
|
statscollector_t *collect = (statscollector_t*) arg;
|
|
ProfilerEntry *entry = (ProfilerEntry*) sentry->header.key;
|
|
int err;
|
|
PyObject *sinfo;
|
|
sinfo = PyObject_CallFunction((PyObject*) &StatsSubEntryType,
|
|
"((Olldd))",
|
|
entry->userObj,
|
|
sentry->callcount,
|
|
sentry->recursivecallcount,
|
|
collect->factor * sentry->tt,
|
|
collect->factor * sentry->it);
|
|
if (sinfo == NULL)
|
|
return -1;
|
|
err = PyList_Append(collect->sublist, sinfo);
|
|
Py_DECREF(sinfo);
|
|
return err;
|
|
}
|
|
|
|
static int statsForEntry(rotating_node_t *node, void *arg)
|
|
{
|
|
ProfilerEntry *entry = (ProfilerEntry*) node;
|
|
statscollector_t *collect = (statscollector_t*) arg;
|
|
PyObject *info;
|
|
int err;
|
|
if (entry->callcount == 0)
|
|
return 0; /* skip */
|
|
|
|
if (entry->calls != EMPTY_ROTATING_TREE) {
|
|
collect->sublist = PyList_New(0);
|
|
if (collect->sublist == NULL)
|
|
return -1;
|
|
if (RotatingTree_Enum(entry->calls,
|
|
statsForSubEntry, collect) != 0) {
|
|
Py_DECREF(collect->sublist);
|
|
return -1;
|
|
}
|
|
}
|
|
else {
|
|
Py_INCREF(Py_None);
|
|
collect->sublist = Py_None;
|
|
}
|
|
|
|
info = PyObject_CallFunction((PyObject*) &StatsEntryType,
|
|
"((OllddO))",
|
|
entry->userObj,
|
|
entry->callcount,
|
|
entry->recursivecallcount,
|
|
collect->factor * entry->tt,
|
|
collect->factor * entry->it,
|
|
collect->sublist);
|
|
Py_DECREF(collect->sublist);
|
|
if (info == NULL)
|
|
return -1;
|
|
err = PyList_Append(collect->list, info);
|
|
Py_DECREF(info);
|
|
return err;
|
|
}
|
|
|
|
PyDoc_STRVAR(getstats_doc, "\
|
|
getstats() -> list of profiler_entry objects\n\
|
|
\n\
|
|
Return all information collected by the profiler.\n\
|
|
Each profiler_entry is a tuple-like object with the\n\
|
|
following attributes:\n\
|
|
\n\
|
|
code code object\n\
|
|
callcount how many times this was called\n\
|
|
reccallcount how many times called recursively\n\
|
|
totaltime total time in this entry\n\
|
|
inlinetime inline time in this entry (not in subcalls)\n\
|
|
calls details of the calls\n\
|
|
\n\
|
|
The calls attribute is either None or a list of\n\
|
|
profiler_subentry objects:\n\
|
|
\n\
|
|
code called code object\n\
|
|
callcount how many times this is called\n\
|
|
reccallcount how many times this is called recursively\n\
|
|
totaltime total time spent in this call\n\
|
|
inlinetime inline time (not in further subcalls)\n\
|
|
");
|
|
|
|
static PyObject*
|
|
profiler_getstats(ProfilerObject *pObj, PyObject* noarg)
|
|
{
|
|
statscollector_t collect;
|
|
if (pending_exception(pObj))
|
|
return NULL;
|
|
if (!pObj->externalTimer)
|
|
collect.factor = hpTimerUnit();
|
|
else if (pObj->externalTimerUnit > 0.0)
|
|
collect.factor = pObj->externalTimerUnit;
|
|
else
|
|
collect.factor = 1.0 / DOUBLE_TIMER_PRECISION;
|
|
collect.list = PyList_New(0);
|
|
if (collect.list == NULL)
|
|
return NULL;
|
|
if (RotatingTree_Enum(pObj->profilerEntries, statsForEntry, &collect)
|
|
!= 0) {
|
|
Py_DECREF(collect.list);
|
|
return NULL;
|
|
}
|
|
return collect.list;
|
|
}
|
|
|
|
static int
|
|
setSubcalls(ProfilerObject *pObj, int nvalue)
|
|
{
|
|
if (nvalue == 0)
|
|
pObj->flags &= ~POF_SUBCALLS;
|
|
else if (nvalue > 0)
|
|
pObj->flags |= POF_SUBCALLS;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
setBuiltins(ProfilerObject *pObj, int nvalue)
|
|
{
|
|
if (nvalue == 0)
|
|
pObj->flags &= ~POF_BUILTINS;
|
|
else if (nvalue > 0) {
|
|
#ifndef PyTrace_C_CALL
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"builtins=True requires Python >= 2.4");
|
|
return -1;
|
|
#else
|
|
pObj->flags |= POF_BUILTINS;
|
|
#endif
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
PyDoc_STRVAR(enable_doc, "\
|
|
enable(subcalls=True, builtins=True)\n\
|
|
\n\
|
|
Start collecting profiling information.\n\
|
|
If 'subcalls' is True, also records for each function\n\
|
|
statistics separated according to its current caller.\n\
|
|
If 'builtins' is True, records the time spent in\n\
|
|
built-in functions separately from their caller.\n\
|
|
");
|
|
|
|
static PyObject*
|
|
profiler_enable(ProfilerObject *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
int subcalls = -1;
|
|
int builtins = -1;
|
|
static char *kwlist[] = {"subcalls", "builtins", 0};
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|ii:enable",
|
|
kwlist, &subcalls, &builtins))
|
|
return NULL;
|
|
if (setSubcalls(self, subcalls) < 0 || setBuiltins(self, builtins) < 0)
|
|
return NULL;
|
|
PyEval_SetProfile(profiler_callback, (PyObject*)self);
|
|
self->flags |= POF_ENABLED;
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
static void
|
|
flush_unmatched(ProfilerObject *pObj)
|
|
{
|
|
while (pObj->currentProfilerContext) {
|
|
ProfilerContext *pContext = pObj->currentProfilerContext;
|
|
ProfilerEntry *profEntry= pContext->ctxEntry;
|
|
if (profEntry)
|
|
Stop(pObj, pContext, profEntry);
|
|
else
|
|
pObj->currentProfilerContext = pContext->previous;
|
|
if (pContext)
|
|
free(pContext);
|
|
}
|
|
|
|
}
|
|
|
|
PyDoc_STRVAR(disable_doc, "\
|
|
disable()\n\
|
|
\n\
|
|
Stop collecting profiling information.\n\
|
|
");
|
|
|
|
static PyObject*
|
|
profiler_disable(ProfilerObject *self, PyObject* noarg)
|
|
{
|
|
self->flags &= ~POF_ENABLED;
|
|
PyEval_SetProfile(NULL, NULL);
|
|
flush_unmatched(self);
|
|
if (pending_exception(self))
|
|
return NULL;
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
PyDoc_STRVAR(clear_doc, "\
|
|
clear()\n\
|
|
\n\
|
|
Clear all profiling information collected so far.\n\
|
|
");
|
|
|
|
static PyObject*
|
|
profiler_clear(ProfilerObject *pObj, PyObject* noarg)
|
|
{
|
|
clearEntries(pObj);
|
|
Py_INCREF(Py_None);
|
|
return Py_None;
|
|
}
|
|
|
|
static void
|
|
profiler_dealloc(ProfilerObject *op)
|
|
{
|
|
if (op->flags & POF_ENABLED)
|
|
PyEval_SetProfile(NULL, NULL);
|
|
flush_unmatched(op);
|
|
clearEntries(op);
|
|
Py_XDECREF(op->externalTimer);
|
|
Py_TYPE(op)->tp_free(op);
|
|
}
|
|
|
|
static int
|
|
profiler_init(ProfilerObject *pObj, PyObject *args, PyObject *kw)
|
|
{
|
|
PyObject *o;
|
|
PyObject *timer = NULL;
|
|
double timeunit = 0.0;
|
|
int subcalls = 1;
|
|
#ifdef PyTrace_C_CALL
|
|
int builtins = 1;
|
|
#else
|
|
int builtins = 0;
|
|
#endif
|
|
static char *kwlist[] = {"timer", "timeunit",
|
|
"subcalls", "builtins", 0};
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kw, "|Odii:Profiler", kwlist,
|
|
&timer, &timeunit,
|
|
&subcalls, &builtins))
|
|
return -1;
|
|
|
|
if (setSubcalls(pObj, subcalls) < 0 || setBuiltins(pObj, builtins) < 0)
|
|
return -1;
|
|
o = pObj->externalTimer;
|
|
pObj->externalTimer = timer;
|
|
Py_XINCREF(timer);
|
|
Py_XDECREF(o);
|
|
pObj->externalTimerUnit = timeunit;
|
|
return 0;
|
|
}
|
|
|
|
static PyMethodDef profiler_methods[] = {
|
|
{"getstats", (PyCFunction)profiler_getstats,
|
|
METH_NOARGS, getstats_doc},
|
|
{"enable", (PyCFunction)profiler_enable,
|
|
METH_VARARGS | METH_KEYWORDS, enable_doc},
|
|
{"disable", (PyCFunction)profiler_disable,
|
|
METH_NOARGS, disable_doc},
|
|
{"clear", (PyCFunction)profiler_clear,
|
|
METH_NOARGS, clear_doc},
|
|
{NULL, NULL}
|
|
};
|
|
|
|
PyDoc_STRVAR(profiler_doc, "\
|
|
Profiler(custom_timer=None, time_unit=None, subcalls=True, builtins=True)\n\
|
|
\n\
|
|
Builds a profiler object using the specified timer function.\n\
|
|
The default timer is a fast built-in one based on real time.\n\
|
|
For custom timer functions returning integers, time_unit can\n\
|
|
be a float specifying a scale (i.e. how long each integer unit\n\
|
|
is, in seconds).\n\
|
|
");
|
|
|
|
static PyTypeObject PyProfiler_Type = {
|
|
PyVarObject_HEAD_INIT(NULL, 0)
|
|
"_lsprof.Profiler", /* tp_name */
|
|
sizeof(ProfilerObject), /* tp_basicsize */
|
|
0, /* tp_itemsize */
|
|
(destructor)profiler_dealloc, /* tp_dealloc */
|
|
0, /* tp_print */
|
|
0, /* tp_getattr */
|
|
0, /* tp_setattr */
|
|
0, /* tp_reserved */
|
|
0, /* tp_repr */
|
|
0, /* tp_as_number */
|
|
0, /* tp_as_sequence */
|
|
0, /* tp_as_mapping */
|
|
0, /* tp_hash */
|
|
0, /* tp_call */
|
|
0, /* tp_str */
|
|
0, /* tp_getattro */
|
|
0, /* tp_setattro */
|
|
0, /* tp_as_buffer */
|
|
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
|
|
profiler_doc, /* tp_doc */
|
|
0, /* tp_traverse */
|
|
0, /* tp_clear */
|
|
0, /* tp_richcompare */
|
|
0, /* tp_weaklistoffset */
|
|
0, /* tp_iter */
|
|
0, /* tp_iternext */
|
|
profiler_methods, /* tp_methods */
|
|
0, /* tp_members */
|
|
0, /* tp_getset */
|
|
0, /* tp_base */
|
|
0, /* tp_dict */
|
|
0, /* tp_descr_get */
|
|
0, /* tp_descr_set */
|
|
0, /* tp_dictoffset */
|
|
(initproc)profiler_init, /* tp_init */
|
|
PyType_GenericAlloc, /* tp_alloc */
|
|
PyType_GenericNew, /* tp_new */
|
|
PyObject_Del, /* tp_free */
|
|
};
|
|
|
|
static PyMethodDef moduleMethods[] = {
|
|
{NULL, NULL}
|
|
};
|
|
|
|
|
|
static struct PyModuleDef _lsprofmodule = {
|
|
PyModuleDef_HEAD_INIT,
|
|
"_lsprof",
|
|
"Fast profiler",
|
|
-1,
|
|
moduleMethods,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
|
|
PyMODINIT_FUNC
|
|
PyInit__lsprof(void)
|
|
{
|
|
PyObject *module, *d;
|
|
module = PyModule_Create(&_lsprofmodule);
|
|
if (module == NULL)
|
|
return NULL;
|
|
d = PyModule_GetDict(module);
|
|
if (PyType_Ready(&PyProfiler_Type) < 0)
|
|
return NULL;
|
|
PyDict_SetItemString(d, "Profiler", (PyObject *)&PyProfiler_Type);
|
|
|
|
if (!initialized) {
|
|
PyStructSequence_InitType(&StatsEntryType,
|
|
&profiler_entry_desc);
|
|
PyStructSequence_InitType(&StatsSubEntryType,
|
|
&profiler_subentry_desc);
|
|
}
|
|
Py_INCREF((PyObject*) &StatsEntryType);
|
|
Py_INCREF((PyObject*) &StatsSubEntryType);
|
|
PyModule_AddObject(module, "profiler_entry",
|
|
(PyObject*) &StatsEntryType);
|
|
PyModule_AddObject(module, "profiler_subentry",
|
|
(PyObject*) &StatsSubEntryType);
|
|
empty_tuple = PyTuple_New(0);
|
|
initialized = 1;
|
|
return module;
|
|
}
|