#include <Python.h>
  #include <structmember.h>
  #include <inttypes.h>
  #include <poll.h>

  #include <linux/err.h>

  #include "evlist.h"

  #include "callchain.h"

  #include "evsel.h"
  #include "event.h"
  #include "cpumap.h"

  #include "print_binary.h"

  #include "thread_map.h"

  /*

   * Provide these two so that we don't have to link against callchain.c and
   * start dragging hist.c, etc.
   */
  struct callchain_param callchain_param;
  
  int parse_callchain_record(const char *arg __maybe_unused,
  			   struct callchain_param *param __maybe_unused)
  {
  	return 0;
  }
  
  /*

   * Support debug printing even though util/debug.c is not linked.  That means
   * implementing 'verbose' and 'eprintf'.
   */
  int verbose;

  int eprintf(int level, int var, const char *fmt, ...)

  {
  	va_list args;
  	int ret = 0;

  	if (var >= level) {

  		va_start(args, fmt);
  		ret = vfprintf(stderr, fmt, args);
  		va_end(args);
  	}
  
  	return ret;
  }

  /* Define PyVarObject_HEAD_INIT for python 2.5 */
  #ifndef PyVarObject_HEAD_INIT
  # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
  #endif

  PyMODINIT_FUNC initperf(void);

  #define member_def(type, member, ptype, help) \
  	{ #member, ptype, \
  	  offsetof(struct pyrf_event, event) + offsetof(struct type, member), \
  	  0, help }
  
  #define sample_member_def(name, member, ptype, help) \
  	{ #name, ptype, \
  	  offsetof(struct pyrf_event, sample) + offsetof(struct perf_sample, member), \
  	  0, help }
  
  struct pyrf_event {
  	PyObject_HEAD

  	struct perf_evsel *evsel;

  	struct perf_sample sample;
  	union perf_event   event;
  };

  #define sample_members \

  	sample_member_def(sample_ip, ip, T_ULONGLONG, "event type"),			 \

  	sample_member_def(sample_pid, pid, T_INT, "event pid"),			 \
  	sample_member_def(sample_tid, tid, T_INT, "event tid"),			 \

  	sample_member_def(sample_time, time, T_ULONGLONG, "event timestamp"),		 \
  	sample_member_def(sample_addr, addr, T_ULONGLONG, "event addr"),		 \
  	sample_member_def(sample_id, id, T_ULONGLONG, "event id"),			 \
  	sample_member_def(sample_stream_id, stream_id, T_ULONGLONG, "event stream id"), \
  	sample_member_def(sample_period, period, T_ULONGLONG, "event period"),		 \

  	sample_member_def(sample_cpu, cpu, T_UINT, "event cpu"),
  
  static char pyrf_mmap_event__doc[] = PyDoc_STR("perf mmap event object.");
  
  static PyMemberDef pyrf_mmap_event__members[] = {
  	sample_members
  	member_def(perf_event_header, type, T_UINT, "event type"),

  	member_def(perf_event_header, misc, T_UINT, "event misc"),

  	member_def(mmap_event, pid, T_UINT, "event pid"),
  	member_def(mmap_event, tid, T_UINT, "event tid"),

  	member_def(mmap_event, start, T_ULONGLONG, "start of the map"),
  	member_def(mmap_event, len, T_ULONGLONG, "map length"),
  	member_def(mmap_event, pgoff, T_ULONGLONG, "page offset"),

  	member_def(mmap_event, filename, T_STRING_INPLACE, "backing store"),

  	{ .name = NULL, },

  };
  
  static PyObject *pyrf_mmap_event__repr(struct pyrf_event *pevent)
  {
  	PyObject *ret;
  	char *s;
  
  	if (asprintf(&s, "{ type: mmap, pid: %u, tid: %u, start: %#" PRIx64 ", "
  			 "length: %#" PRIx64 ", offset: %#" PRIx64 ", "
  			 "filename: %s }",
  		     pevent->event.mmap.pid, pevent->event.mmap.tid,
  		     pevent->event.mmap.start, pevent->event.mmap.len,
  		     pevent->event.mmap.pgoff, pevent->event.mmap.filename) < 0) {
  		ret = PyErr_NoMemory();
  	} else {
  		ret = PyString_FromString(s);
  		free(s);
  	}
  	return ret;
  }
  
  static PyTypeObject pyrf_mmap_event__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.mmap_event",
  	.tp_basicsize	= sizeof(struct pyrf_event),
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_mmap_event__doc,
  	.tp_members	= pyrf_mmap_event__members,
  	.tp_repr	= (reprfunc)pyrf_mmap_event__repr,
  };
  
  static char pyrf_task_event__doc[] = PyDoc_STR("perf task (fork/exit) event object.");
  
  static PyMemberDef pyrf_task_event__members[] = {
  	sample_members
  	member_def(perf_event_header, type, T_UINT, "event type"),
  	member_def(fork_event, pid, T_UINT, "event pid"),
  	member_def(fork_event, ppid, T_UINT, "event ppid"),
  	member_def(fork_event, tid, T_UINT, "event tid"),
  	member_def(fork_event, ptid, T_UINT, "event ptid"),

  	member_def(fork_event, time, T_ULONGLONG, "timestamp"),
  	{ .name = NULL, },

  };
  
  static PyObject *pyrf_task_event__repr(struct pyrf_event *pevent)
  {
  	return PyString_FromFormat("{ type: %s, pid: %u, ppid: %u, tid: %u, "
  				   "ptid: %u, time: %" PRIu64 "}",
  				   pevent->event.header.type == PERF_RECORD_FORK ? "fork" : "exit",
  				   pevent->event.fork.pid,
  				   pevent->event.fork.ppid,
  				   pevent->event.fork.tid,
  				   pevent->event.fork.ptid,
  				   pevent->event.fork.time);
  }
  
  static PyTypeObject pyrf_task_event__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.task_event",
  	.tp_basicsize	= sizeof(struct pyrf_event),
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_task_event__doc,
  	.tp_members	= pyrf_task_event__members,
  	.tp_repr	= (reprfunc)pyrf_task_event__repr,
  };
  
  static char pyrf_comm_event__doc[] = PyDoc_STR("perf comm event object.");
  
  static PyMemberDef pyrf_comm_event__members[] = {
  	sample_members
  	member_def(perf_event_header, type, T_UINT, "event type"),
  	member_def(comm_event, pid, T_UINT, "event pid"),
  	member_def(comm_event, tid, T_UINT, "event tid"),
  	member_def(comm_event, comm, T_STRING_INPLACE, "process name"),

  	{ .name = NULL, },

  };
  
  static PyObject *pyrf_comm_event__repr(struct pyrf_event *pevent)
  {
  	return PyString_FromFormat("{ type: comm, pid: %u, tid: %u, comm: %s }",
  				   pevent->event.comm.pid,
  				   pevent->event.comm.tid,
  				   pevent->event.comm.comm);
  }
  
  static PyTypeObject pyrf_comm_event__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.comm_event",
  	.tp_basicsize	= sizeof(struct pyrf_event),
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_comm_event__doc,
  	.tp_members	= pyrf_comm_event__members,
  	.tp_repr	= (reprfunc)pyrf_comm_event__repr,
  };
  
  static char pyrf_throttle_event__doc[] = PyDoc_STR("perf throttle event object.");
  
  static PyMemberDef pyrf_throttle_event__members[] = {
  	sample_members
  	member_def(perf_event_header, type, T_UINT, "event type"),

  	member_def(throttle_event, time, T_ULONGLONG, "timestamp"),
  	member_def(throttle_event, id, T_ULONGLONG, "event id"),
  	member_def(throttle_event, stream_id, T_ULONGLONG, "event stream id"),
  	{ .name = NULL, },

  };
  
  static PyObject *pyrf_throttle_event__repr(struct pyrf_event *pevent)
  {
  	struct throttle_event *te = (struct throttle_event *)(&pevent->event.header + 1);
  
  	return PyString_FromFormat("{ type: %sthrottle, time: %" PRIu64 ", id: %" PRIu64
  				   ", stream_id: %" PRIu64 " }",
  				   pevent->event.header.type == PERF_RECORD_THROTTLE ? "" : "un",
  				   te->time, te->id, te->stream_id);
  }
  
  static PyTypeObject pyrf_throttle_event__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.throttle_event",
  	.tp_basicsize	= sizeof(struct pyrf_event),
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_throttle_event__doc,
  	.tp_members	= pyrf_throttle_event__members,
  	.tp_repr	= (reprfunc)pyrf_throttle_event__repr,
  };

  static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
  
  static PyMemberDef pyrf_lost_event__members[] = {
  	sample_members
  	member_def(lost_event, id, T_ULONGLONG, "event id"),
  	member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
  	{ .name = NULL, },
  };
  
  static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
  {
  	PyObject *ret;
  	char *s;
  
  	if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
  			 "lost: %#" PRIx64 " }",
  		     pevent->event.lost.id, pevent->event.lost.lost) < 0) {
  		ret = PyErr_NoMemory();
  	} else {
  		ret = PyString_FromString(s);
  		free(s);
  	}
  	return ret;
  }
  
  static PyTypeObject pyrf_lost_event__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.lost_event",
  	.tp_basicsize	= sizeof(struct pyrf_event),
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_lost_event__doc,
  	.tp_members	= pyrf_lost_event__members,
  	.tp_repr	= (reprfunc)pyrf_lost_event__repr,
  };
  
  static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
  
  static PyMemberDef pyrf_read_event__members[] = {
  	sample_members
  	member_def(read_event, pid, T_UINT, "event pid"),
  	member_def(read_event, tid, T_UINT, "event tid"),
  	{ .name = NULL, },
  };
  
  static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
  {
  	return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
  				   pevent->event.read.pid,
  				   pevent->event.read.tid);
  	/*
   	 * FIXME: return the array of read values,
   	 * making this method useful ;-)
   	 */
  }
  
  static PyTypeObject pyrf_read_event__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.read_event",
  	.tp_basicsize	= sizeof(struct pyrf_event),
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_read_event__doc,
  	.tp_members	= pyrf_read_event__members,
  	.tp_repr	= (reprfunc)pyrf_read_event__repr,
  };
  
  static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
  
  static PyMemberDef pyrf_sample_event__members[] = {
  	sample_members
  	member_def(perf_event_header, type, T_UINT, "event type"),
  	{ .name = NULL, },
  };
  
  static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
  {
  	PyObject *ret;
  	char *s;
  
  	if (asprintf(&s, "{ type: sample }") < 0) {
  		ret = PyErr_NoMemory();
  	} else {
  		ret = PyString_FromString(s);
  		free(s);
  	}
  	return ret;
  }

  static bool is_tracepoint(struct pyrf_event *pevent)
  {
  	return pevent->evsel->attr.type == PERF_TYPE_TRACEPOINT;
  }

  static PyObject*
  tracepoint_field(struct pyrf_event *pe, struct format_field *field)
  {
  	struct pevent *pevent = field->event->pevent;
  	void *data = pe->sample.raw_data;
  	PyObject *ret = NULL;
  	unsigned long long val;
  	unsigned int offset, len;
  
  	if (field->flags & FIELD_IS_ARRAY) {
  		offset = field->offset;
  		len    = field->size;
  		if (field->flags & FIELD_IS_DYNAMIC) {
  			val     = pevent_read_number(pevent, data + offset, len);
  			offset  = val;
  			len     = offset >> 16;
  			offset &= 0xffff;
  		}
  		if (field->flags & FIELD_IS_STRING &&
  		    is_printable_array(data + offset, len)) {
  			ret = PyString_FromString((char *)data + offset);
  		} else {
  			ret = PyByteArray_FromStringAndSize((const char *) data + offset, len);
  			field->flags &= ~FIELD_IS_STRING;
  		}
  	} else {
  		val = pevent_read_number(pevent, data + field->offset,
  					 field->size);
  		if (field->flags & FIELD_IS_POINTER)
  			ret = PyLong_FromUnsignedLong((unsigned long) val);
  		else if (field->flags & FIELD_IS_SIGNED)
  			ret = PyLong_FromLong((long) val);
  		else
  			ret = PyLong_FromUnsignedLong((unsigned long) val);
  	}
  
  	return ret;
  }
  
  static PyObject*
  get_tracepoint_field(struct pyrf_event *pevent, PyObject *attr_name)
  {
  	const char *str = PyString_AsString(PyObject_Str(attr_name));
  	struct perf_evsel *evsel = pevent->evsel;
  	struct format_field *field;
  
  	if (!evsel->tp_format) {
  		struct event_format *tp_format;
  
  		tp_format = trace_event__tp_format_id(evsel->attr.config);
  		if (!tp_format)
  			return NULL;
  
  		evsel->tp_format = tp_format;
  	}
  
  	field = pevent_find_any_field(evsel->tp_format, str);
  	if (!field)
  		return NULL;
  
  	return tracepoint_field(pevent, field);
  }
  
  static PyObject*
  pyrf_sample_event__getattro(struct pyrf_event *pevent, PyObject *attr_name)
  {
  	PyObject *obj = NULL;
  
  	if (is_tracepoint(pevent))
  		obj = get_tracepoint_field(pevent, attr_name);
  
  	return obj ?: PyObject_GenericGetAttr((PyObject *) pevent, attr_name);
  }

  static PyTypeObject pyrf_sample_event__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.sample_event",
  	.tp_basicsize	= sizeof(struct pyrf_event),
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_sample_event__doc,
  	.tp_members	= pyrf_sample_event__members,
  	.tp_repr	= (reprfunc)pyrf_sample_event__repr,

  	.tp_getattro	= (getattrofunc) pyrf_sample_event__getattro,

  };

  static char pyrf_context_switch_event__doc[] = PyDoc_STR("perf context_switch event object.");
  
  static PyMemberDef pyrf_context_switch_event__members[] = {
  	sample_members
  	member_def(perf_event_header, type, T_UINT, "event type"),
  	member_def(context_switch_event, next_prev_pid, T_UINT, "next/prev pid"),
  	member_def(context_switch_event, next_prev_tid, T_UINT, "next/prev tid"),
  	{ .name = NULL, },
  };
  
  static PyObject *pyrf_context_switch_event__repr(struct pyrf_event *pevent)
  {
  	PyObject *ret;
  	char *s;
  
  	if (asprintf(&s, "{ type: context_switch, next_prev_pid: %u, next_prev_tid: %u, switch_out: %u }",
  		     pevent->event.context_switch.next_prev_pid,
  		     pevent->event.context_switch.next_prev_tid,
  		     !!(pevent->event.header.misc & PERF_RECORD_MISC_SWITCH_OUT)) < 0) {
  		ret = PyErr_NoMemory();
  	} else {
  		ret = PyString_FromString(s);
  		free(s);
  	}
  	return ret;
  }
  
  static PyTypeObject pyrf_context_switch_event__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.context_switch_event",
  	.tp_basicsize	= sizeof(struct pyrf_event),
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_context_switch_event__doc,
  	.tp_members	= pyrf_context_switch_event__members,
  	.tp_repr	= (reprfunc)pyrf_context_switch_event__repr,
  };

  static int pyrf_event__setup_types(void)
  {
  	int err;
  	pyrf_mmap_event__type.tp_new =
  	pyrf_task_event__type.tp_new =
  	pyrf_comm_event__type.tp_new =

  	pyrf_lost_event__type.tp_new =
  	pyrf_read_event__type.tp_new =
  	pyrf_sample_event__type.tp_new =

  	pyrf_context_switch_event__type.tp_new =

  	pyrf_throttle_event__type.tp_new = PyType_GenericNew;
  	err = PyType_Ready(&pyrf_mmap_event__type);
  	if (err < 0)
  		goto out;

  	err = PyType_Ready(&pyrf_lost_event__type);
  	if (err < 0)
  		goto out;

  	err = PyType_Ready(&pyrf_task_event__type);
  	if (err < 0)
  		goto out;
  	err = PyType_Ready(&pyrf_comm_event__type);
  	if (err < 0)
  		goto out;
  	err = PyType_Ready(&pyrf_throttle_event__type);
  	if (err < 0)
  		goto out;

  	err = PyType_Ready(&pyrf_read_event__type);
  	if (err < 0)
  		goto out;
  	err = PyType_Ready(&pyrf_sample_event__type);
  	if (err < 0)
  		goto out;

  	err = PyType_Ready(&pyrf_context_switch_event__type);
  	if (err < 0)
  		goto out;

  out:
  	return err;
  }
  
  static PyTypeObject *pyrf_event__type[] = {
  	[PERF_RECORD_MMAP]	 = &pyrf_mmap_event__type,

  	[PERF_RECORD_LOST]	 = &pyrf_lost_event__type,

  	[PERF_RECORD_COMM]	 = &pyrf_comm_event__type,
  	[PERF_RECORD_EXIT]	 = &pyrf_task_event__type,
  	[PERF_RECORD_THROTTLE]	 = &pyrf_throttle_event__type,
  	[PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
  	[PERF_RECORD_FORK]	 = &pyrf_task_event__type,

  	[PERF_RECORD_READ]	 = &pyrf_read_event__type,
  	[PERF_RECORD_SAMPLE]	 = &pyrf_sample_event__type,

  	[PERF_RECORD_SWITCH]	 = &pyrf_context_switch_event__type,
  	[PERF_RECORD_SWITCH_CPU_WIDE]  = &pyrf_context_switch_event__type,

  };
  
  static PyObject *pyrf_event__new(union perf_event *event)
  {
  	struct pyrf_event *pevent;
  	PyTypeObject *ptype;

  	if ((event->header.type < PERF_RECORD_MMAP ||
  	     event->header.type > PERF_RECORD_SAMPLE) &&
  	    !(event->header.type == PERF_RECORD_SWITCH ||
  	      event->header.type == PERF_RECORD_SWITCH_CPU_WIDE))

  		return NULL;
  
  	ptype = pyrf_event__type[event->header.type];
  	pevent = PyObject_New(struct pyrf_event, ptype);
  	if (pevent != NULL)
  		memcpy(&pevent->event, event, event->header.size);
  	return (PyObject *)pevent;
  }
  
  struct pyrf_cpu_map {
  	PyObject_HEAD
  
  	struct cpu_map *cpus;
  };
  
  static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
  			      PyObject *args, PyObject *kwargs)
  {

  	static char *kwlist[] = { "cpustr", NULL };

  	char *cpustr = NULL;
  
  	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
  					 kwlist, &cpustr))
  		return -1;
  
  	pcpus->cpus = cpu_map__new(cpustr);
  	if (pcpus->cpus == NULL)
  		return -1;
  	return 0;
  }
  
  static void pyrf_cpu_map__delete(struct pyrf_cpu_map *pcpus)
  {

  	cpu_map__put(pcpus->cpus);

  	pcpus->ob_type->tp_free((PyObject*)pcpus);
  }
  
  static Py_ssize_t pyrf_cpu_map__length(PyObject *obj)
  {
  	struct pyrf_cpu_map *pcpus = (void *)obj;
  
  	return pcpus->cpus->nr;
  }
  
  static PyObject *pyrf_cpu_map__item(PyObject *obj, Py_ssize_t i)
  {
  	struct pyrf_cpu_map *pcpus = (void *)obj;
  
  	if (i >= pcpus->cpus->nr)
  		return NULL;
  
  	return Py_BuildValue("i", pcpus->cpus->map[i]);
  }
  
  static PySequenceMethods pyrf_cpu_map__sequence_methods = {
  	.sq_length = pyrf_cpu_map__length,
  	.sq_item   = pyrf_cpu_map__item,
  };
  
  static char pyrf_cpu_map__doc[] = PyDoc_STR("cpu map object.");
  
  static PyTypeObject pyrf_cpu_map__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.cpu_map",
  	.tp_basicsize	= sizeof(struct pyrf_cpu_map),
  	.tp_dealloc	= (destructor)pyrf_cpu_map__delete,
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_cpu_map__doc,
  	.tp_as_sequence	= &pyrf_cpu_map__sequence_methods,
  	.tp_init	= (initproc)pyrf_cpu_map__init,
  };
  
  static int pyrf_cpu_map__setup_types(void)
  {
  	pyrf_cpu_map__type.tp_new = PyType_GenericNew;
  	return PyType_Ready(&pyrf_cpu_map__type);
  }
  
  struct pyrf_thread_map {
  	PyObject_HEAD
  
  	struct thread_map *threads;
  };
  
  static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
  				 PyObject *args, PyObject *kwargs)
  {

  	static char *kwlist[] = { "pid", "tid", "uid", NULL };
  	int pid = -1, tid = -1, uid = UINT_MAX;

  	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|iii",
  					 kwlist, &pid, &tid, &uid))

  		return -1;

  	pthreads->threads = thread_map__new(pid, tid, uid);

  	if (pthreads->threads == NULL)
  		return -1;
  	return 0;
  }
  
  static void pyrf_thread_map__delete(struct pyrf_thread_map *pthreads)
  {

  	thread_map__put(pthreads->threads);

  	pthreads->ob_type->tp_free((PyObject*)pthreads);
  }
  
  static Py_ssize_t pyrf_thread_map__length(PyObject *obj)
  {
  	struct pyrf_thread_map *pthreads = (void *)obj;
  
  	return pthreads->threads->nr;
  }
  
  static PyObject *pyrf_thread_map__item(PyObject *obj, Py_ssize_t i)
  {
  	struct pyrf_thread_map *pthreads = (void *)obj;
  
  	if (i >= pthreads->threads->nr)
  		return NULL;
  
  	return Py_BuildValue("i", pthreads->threads->map[i]);
  }
  
  static PySequenceMethods pyrf_thread_map__sequence_methods = {
  	.sq_length = pyrf_thread_map__length,
  	.sq_item   = pyrf_thread_map__item,
  };
  
  static char pyrf_thread_map__doc[] = PyDoc_STR("thread map object.");
  
  static PyTypeObject pyrf_thread_map__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.thread_map",
  	.tp_basicsize	= sizeof(struct pyrf_thread_map),
  	.tp_dealloc	= (destructor)pyrf_thread_map__delete,
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_thread_map__doc,
  	.tp_as_sequence	= &pyrf_thread_map__sequence_methods,
  	.tp_init	= (initproc)pyrf_thread_map__init,
  };
  
  static int pyrf_thread_map__setup_types(void)
  {
  	pyrf_thread_map__type.tp_new = PyType_GenericNew;
  	return PyType_Ready(&pyrf_thread_map__type);
  }
  
  struct pyrf_evsel {
  	PyObject_HEAD
  
  	struct perf_evsel evsel;
  };
  
  static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
  			    PyObject *args, PyObject *kwargs)
  {
  	struct perf_event_attr attr = {
  		.type = PERF_TYPE_HARDWARE,
  		.config = PERF_COUNT_HW_CPU_CYCLES,
  		.sample_type = PERF_SAMPLE_PERIOD | PERF_SAMPLE_TID,
  	};
  	static char *kwlist[] = {
  		"type",
  		"config",
  		"sample_freq",
  		"sample_period",
  		"sample_type",
  		"read_format",
  		"disabled",
  		"inherit",
  		"pinned",
  		"exclusive",
  		"exclude_user",
  		"exclude_kernel",
  		"exclude_hv",
  		"exclude_idle",
  		"mmap",

  		"context_switch",

  		"comm",
  		"freq",
  		"inherit_stat",
  		"enable_on_exec",
  		"task",
  		"watermark",
  		"precise_ip",
  		"mmap_data",
  		"sample_id_all",
  		"wakeup_events",
  		"bp_type",
  		"bp_addr",

  		"bp_len",
  		 NULL
  	};

  	u64 sample_period = 0;
  	u32 disabled = 0,
  	    inherit = 0,
  	    pinned = 0,
  	    exclusive = 0,
  	    exclude_user = 0,
  	    exclude_kernel = 0,
  	    exclude_hv = 0,
  	    exclude_idle = 0,
  	    mmap = 0,

  	    context_switch = 0,

  	    comm = 0,
  	    freq = 1,
  	    inherit_stat = 0,
  	    enable_on_exec = 0,
  	    task = 0,
  	    watermark = 0,
  	    precise_ip = 0,
  	    mmap_data = 0,
  	    sample_id_all = 1;
  	int idx = 0;
  
  	if (!PyArg_ParseTupleAndKeywords(args, kwargs,

  					 "|iKiKKiiiiiiiiiiiiiiiiiiiiiiKK", kwlist,

  					 &attr.type, &attr.config, &attr.sample_freq,
  					 &sample_period, &attr.sample_type,
  					 &attr.read_format, &disabled, &inherit,
  					 &pinned, &exclusive, &exclude_user,
  					 &exclude_kernel, &exclude_hv, &exclude_idle,

  					 &mmap, &context_switch, &comm, &freq, &inherit_stat,

  					 &enable_on_exec, &task, &watermark,
  					 &precise_ip, &mmap_data, &sample_id_all,
  					 &attr.wakeup_events, &attr.bp_type,
  					 &attr.bp_addr, &attr.bp_len, &idx))
  		return -1;
  
  	/* union... */
  	if (sample_period != 0) {
  		if (attr.sample_freq != 0)
  			return -1; /* FIXME: throw right exception */
  		attr.sample_period = sample_period;
  	}
  
  	/* Bitfields */
  	attr.disabled	    = disabled;
  	attr.inherit	    = inherit;
  	attr.pinned	    = pinned;
  	attr.exclusive	    = exclusive;
  	attr.exclude_user   = exclude_user;
  	attr.exclude_kernel = exclude_kernel;
  	attr.exclude_hv	    = exclude_hv;
  	attr.exclude_idle   = exclude_idle;
  	attr.mmap	    = mmap;

  	attr.context_switch = context_switch;

  	attr.comm	    = comm;
  	attr.freq	    = freq;
  	attr.inherit_stat   = inherit_stat;
  	attr.enable_on_exec = enable_on_exec;
  	attr.task	    = task;
  	attr.watermark	    = watermark;
  	attr.precise_ip	    = precise_ip;
  	attr.mmap_data	    = mmap_data;
  	attr.sample_id_all  = sample_id_all;

  	attr.size	    = sizeof(attr);

  
  	perf_evsel__init(&pevsel->evsel, &attr, idx);
  	return 0;
  }
  
  static void pyrf_evsel__delete(struct pyrf_evsel *pevsel)
  {
  	perf_evsel__exit(&pevsel->evsel);
  	pevsel->ob_type->tp_free((PyObject*)pevsel);
  }
  
  static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
  				  PyObject *args, PyObject *kwargs)
  {
  	struct perf_evsel *evsel = &pevsel->evsel;
  	struct cpu_map *cpus = NULL;
  	struct thread_map *threads = NULL;
  	PyObject *pcpus = NULL, *pthreads = NULL;

  	int group = 0, inherit = 0;

  	static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };

  
  	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,

  					 &pcpus, &pthreads, &group, &inherit))

  		return NULL;
  
  	if (pthreads != NULL)
  		threads = ((struct pyrf_thread_map *)pthreads)->threads;
  
  	if (pcpus != NULL)
  		cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;

  	evsel->attr.inherit = inherit;

  	/*
  	 * This will group just the fds for this single evsel, to group
  	 * multiple events, use evlist.open().
  	 */

  	if (perf_evsel__open(evsel, cpus, threads) < 0) {

  		PyErr_SetFromErrno(PyExc_OSError);
  		return NULL;
  	}
  
  	Py_INCREF(Py_None);
  	return Py_None;
  }
  
  static PyMethodDef pyrf_evsel__methods[] = {
  	{
  		.ml_name  = "open",
  		.ml_meth  = (PyCFunction)pyrf_evsel__open,
  		.ml_flags = METH_VARARGS | METH_KEYWORDS,
  		.ml_doc	  = PyDoc_STR("open the event selector file descriptor table.")
  	},

  	{ .ml_name = NULL, }

  };
  
  static char pyrf_evsel__doc[] = PyDoc_STR("perf event selector list object.");
  
  static PyTypeObject pyrf_evsel__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.evsel",
  	.tp_basicsize	= sizeof(struct pyrf_evsel),
  	.tp_dealloc	= (destructor)pyrf_evsel__delete,
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_doc		= pyrf_evsel__doc,
  	.tp_methods	= pyrf_evsel__methods,
  	.tp_init	= (initproc)pyrf_evsel__init,
  };
  
  static int pyrf_evsel__setup_types(void)
  {
  	pyrf_evsel__type.tp_new = PyType_GenericNew;
  	return PyType_Ready(&pyrf_evsel__type);
  }
  
  struct pyrf_evlist {
  	PyObject_HEAD
  
  	struct perf_evlist evlist;
  };
  
  static int pyrf_evlist__init(struct pyrf_evlist *pevlist,

  			     PyObject *args, PyObject *kwargs __maybe_unused)

  {

  	PyObject *pcpus = NULL, *pthreads = NULL;
  	struct cpu_map *cpus;
  	struct thread_map *threads;
  
  	if (!PyArg_ParseTuple(args, "OO", &pcpus, &pthreads))
  		return -1;
  
  	threads = ((struct pyrf_thread_map *)pthreads)->threads;
  	cpus = ((struct pyrf_cpu_map *)pcpus)->cpus;
  	perf_evlist__init(&pevlist->evlist, cpus, threads);

  	return 0;
  }
  
  static void pyrf_evlist__delete(struct pyrf_evlist *pevlist)
  {
  	perf_evlist__exit(&pevlist->evlist);
  	pevlist->ob_type->tp_free((PyObject*)pevlist);
  }
  
  static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
  				   PyObject *args, PyObject *kwargs)
  {
  	struct perf_evlist *evlist = &pevlist->evlist;

  	static char *kwlist[] = { "pages", "overwrite", NULL };

  	int pages = 128, overwrite = false;

  	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
  					 &pages, &overwrite))

  		return NULL;

  	if (perf_evlist__mmap(evlist, pages, overwrite) < 0) {

  		PyErr_SetFromErrno(PyExc_OSError);
  		return NULL;
  	}
  
  	Py_INCREF(Py_None);
  	return Py_None;
  }
  
  static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
  				   PyObject *args, PyObject *kwargs)
  {
  	struct perf_evlist *evlist = &pevlist->evlist;

  	static char *kwlist[] = { "timeout", NULL };

  	int timeout = -1, n;
  
  	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
  		return NULL;

  	n = perf_evlist__poll(evlist, timeout);

  	if (n < 0) {
  		PyErr_SetFromErrno(PyExc_OSError);
  		return NULL;
  	}
  
  	return Py_BuildValue("i", n);
  }
  
  static PyObject *pyrf_evlist__get_pollfd(struct pyrf_evlist *pevlist,

  					 PyObject *args __maybe_unused,
  					 PyObject *kwargs __maybe_unused)

  {
  	struct perf_evlist *evlist = &pevlist->evlist;
          PyObject *list = PyList_New(0);
  	int i;

  	for (i = 0; i < evlist->pollfd.nr; ++i) {

  		PyObject *file;

  		FILE *fp = fdopen(evlist->pollfd.entries[i].fd, "r");

  
  		if (fp == NULL)
  			goto free_list;
  
  		file = PyFile_FromFile(fp, "perf", "r", NULL);
  		if (file == NULL)
  			goto free_list;
  
  		if (PyList_Append(list, file) != 0) {
  			Py_DECREF(file);
  			goto free_list;
  		}

  		Py_DECREF(file);
  	}
  
  	return list;
  free_list:
  	return PyErr_NoMemory();
  }
  
  
  static PyObject *pyrf_evlist__add(struct pyrf_evlist *pevlist,

  				  PyObject *args,
  				  PyObject *kwargs __maybe_unused)

  {
  	struct perf_evlist *evlist = &pevlist->evlist;
  	PyObject *pevsel;
  	struct perf_evsel *evsel;
  
  	if (!PyArg_ParseTuple(args, "O", &pevsel))
  		return NULL;
  
  	Py_INCREF(pevsel);
  	evsel = &((struct pyrf_evsel *)pevsel)->evsel;
  	evsel->idx = evlist->nr_entries;
  	perf_evlist__add(evlist, evsel);
  
  	return Py_BuildValue("i", evlist->nr_entries);
  }
  
  static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
  					  PyObject *args, PyObject *kwargs)
  {
  	struct perf_evlist *evlist = &pevlist->evlist;
  	union perf_event *event;
  	int sample_id_all = 1, cpu;

  	static char *kwlist[] = { "cpu", "sample_id_all", NULL };

  	int err;

  
  	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
  					 &cpu, &sample_id_all))
  		return NULL;

  	event = perf_evlist__mmap_read(evlist, cpu);

  	if (event != NULL) {

  		PyObject *pyevent = pyrf_event__new(event);
  		struct pyrf_event *pevent = (struct pyrf_event *)pyevent;

  		struct perf_evsel *evsel;

  
  		if (pyevent == NULL)
  			return PyErr_NoMemory();

  		evsel = perf_evlist__event2evsel(evlist, event);
  		if (!evsel)
  			return Py_None;
  
  		pevent->evsel = evsel;
  
  		err = perf_evsel__parse_sample(evsel, event, &pevent->sample);

  
  		/* Consume the even only after we parsed it out. */
  		perf_evlist__mmap_consume(evlist, cpu);

  		if (err)
  			return PyErr_Format(PyExc_OSError,
  					    "perf: can't parse sample, err=%d", err);

  		return pyevent;
  	}

  	Py_INCREF(Py_None);
  	return Py_None;
  }

  static PyObject *pyrf_evlist__open(struct pyrf_evlist *pevlist,
  				   PyObject *args, PyObject *kwargs)
  {
  	struct perf_evlist *evlist = &pevlist->evlist;
  	int group = 0;
  	static char *kwlist[] = { "group", NULL };
  
  	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, &group))
  		return NULL;

  	if (group)

  		perf_evlist__set_leader(evlist);

  
  	if (perf_evlist__open(evlist) < 0) {

  		PyErr_SetFromErrno(PyExc_OSError);
  		return NULL;
  	}
  
  	Py_INCREF(Py_None);
  	return Py_None;
  }

  static PyMethodDef pyrf_evlist__methods[] = {
  	{
  		.ml_name  = "mmap",
  		.ml_meth  = (PyCFunction)pyrf_evlist__mmap,
  		.ml_flags = METH_VARARGS | METH_KEYWORDS,
  		.ml_doc	  = PyDoc_STR("mmap the file descriptor table.")
  	},
  	{

  		.ml_name  = "open",
  		.ml_meth  = (PyCFunction)pyrf_evlist__open,
  		.ml_flags = METH_VARARGS | METH_KEYWORDS,
  		.ml_doc	  = PyDoc_STR("open the file descriptors.")
  	},
  	{

  		.ml_name  = "poll",
  		.ml_meth  = (PyCFunction)pyrf_evlist__poll,
  		.ml_flags = METH_VARARGS | METH_KEYWORDS,
  		.ml_doc	  = PyDoc_STR("poll the file descriptor table.")
  	},
  	{
  		.ml_name  = "get_pollfd",
  		.ml_meth  = (PyCFunction)pyrf_evlist__get_pollfd,
  		.ml_flags = METH_VARARGS | METH_KEYWORDS,
  		.ml_doc	  = PyDoc_STR("get the poll file descriptor table.")
  	},
  	{
  		.ml_name  = "add",
  		.ml_meth  = (PyCFunction)pyrf_evlist__add,
  		.ml_flags = METH_VARARGS | METH_KEYWORDS,
  		.ml_doc	  = PyDoc_STR("adds an event selector to the list.")
  	},
  	{
  		.ml_name  = "read_on_cpu",
  		.ml_meth  = (PyCFunction)pyrf_evlist__read_on_cpu,
  		.ml_flags = METH_VARARGS | METH_KEYWORDS,
  		.ml_doc	  = PyDoc_STR("reads an event.")
  	},

  	{ .ml_name = NULL, }

  };
  
  static Py_ssize_t pyrf_evlist__length(PyObject *obj)
  {
  	struct pyrf_evlist *pevlist = (void *)obj;
  
  	return pevlist->evlist.nr_entries;
  }
  
  static PyObject *pyrf_evlist__item(PyObject *obj, Py_ssize_t i)
  {
  	struct pyrf_evlist *pevlist = (void *)obj;
  	struct perf_evsel *pos;
  
  	if (i >= pevlist->evlist.nr_entries)
  		return NULL;

  	evlist__for_each_entry(&pevlist->evlist, pos) {

  		if (i-- == 0)
  			break;

  	}

  
  	return Py_BuildValue("O", container_of(pos, struct pyrf_evsel, evsel));
  }
  
  static PySequenceMethods pyrf_evlist__sequence_methods = {
  	.sq_length = pyrf_evlist__length,
  	.sq_item   = pyrf_evlist__item,
  };
  
  static char pyrf_evlist__doc[] = PyDoc_STR("perf event selector list object.");
  
  static PyTypeObject pyrf_evlist__type = {
  	PyVarObject_HEAD_INIT(NULL, 0)
  	.tp_name	= "perf.evlist",
  	.tp_basicsize	= sizeof(struct pyrf_evlist),
  	.tp_dealloc	= (destructor)pyrf_evlist__delete,
  	.tp_flags	= Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
  	.tp_as_sequence	= &pyrf_evlist__sequence_methods,
  	.tp_doc		= pyrf_evlist__doc,
  	.tp_methods	= pyrf_evlist__methods,
  	.tp_init	= (initproc)pyrf_evlist__init,
  };
  
  static int pyrf_evlist__setup_types(void)
  {
  	pyrf_evlist__type.tp_new = PyType_GenericNew;
  	return PyType_Ready(&pyrf_evlist__type);
  }

  #define PERF_CONST(name) { #name, PERF_##name }

  static struct {
  	const char *name;
  	int	    value;
  } perf__constants[] = {

  	PERF_CONST(TYPE_HARDWARE),
  	PERF_CONST(TYPE_SOFTWARE),
  	PERF_CONST(TYPE_TRACEPOINT),
  	PERF_CONST(TYPE_HW_CACHE),
  	PERF_CONST(TYPE_RAW),
  	PERF_CONST(TYPE_BREAKPOINT),
  
  	PERF_CONST(COUNT_HW_CPU_CYCLES),
  	PERF_CONST(COUNT_HW_INSTRUCTIONS),
  	PERF_CONST(COUNT_HW_CACHE_REFERENCES),
  	PERF_CONST(COUNT_HW_CACHE_MISSES),
  	PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
  	PERF_CONST(COUNT_HW_BRANCH_MISSES),
  	PERF_CONST(COUNT_HW_BUS_CYCLES),
  	PERF_CONST(COUNT_HW_CACHE_L1D),
  	PERF_CONST(COUNT_HW_CACHE_L1I),
  	PERF_CONST(COUNT_HW_CACHE_LL),
  	PERF_CONST(COUNT_HW_CACHE_DTLB),
  	PERF_CONST(COUNT_HW_CACHE_ITLB),
  	PERF_CONST(COUNT_HW_CACHE_BPU),
  	PERF_CONST(COUNT_HW_CACHE_OP_READ),
  	PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
  	PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
  	PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
  	PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
  
  	PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
  	PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
  
  	PERF_CONST(COUNT_SW_CPU_CLOCK),
  	PERF_CONST(COUNT_SW_TASK_CLOCK),
  	PERF_CONST(COUNT_SW_PAGE_FAULTS),
  	PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
  	PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
  	PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
  	PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
  	PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
  	PERF_CONST(COUNT_SW_EMULATION_FAULTS),
  	PERF_CONST(COUNT_SW_DUMMY),
  
  	PERF_CONST(SAMPLE_IP),
  	PERF_CONST(SAMPLE_TID),
  	PERF_CONST(SAMPLE_TIME),
  	PERF_CONST(SAMPLE_ADDR),
  	PERF_CONST(SAMPLE_READ),
  	PERF_CONST(SAMPLE_CALLCHAIN),
  	PERF_CONST(SAMPLE_ID),
  	PERF_CONST(SAMPLE_CPU),
  	PERF_CONST(SAMPLE_PERIOD),
  	PERF_CONST(SAMPLE_STREAM_ID),
  	PERF_CONST(SAMPLE_RAW),
  
  	PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
  	PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
  	PERF_CONST(FORMAT_ID),
  	PERF_CONST(FORMAT_GROUP),
  
  	PERF_CONST(RECORD_MMAP),
  	PERF_CONST(RECORD_LOST),
  	PERF_CONST(RECORD_COMM),
  	PERF_CONST(RECORD_EXIT),
  	PERF_CONST(RECORD_THROTTLE),
  	PERF_CONST(RECORD_UNTHROTTLE),
  	PERF_CONST(RECORD_FORK),
  	PERF_CONST(RECORD_READ),
  	PERF_CONST(RECORD_SAMPLE),

  	PERF_CONST(RECORD_MMAP2),
  	PERF_CONST(RECORD_AUX),
  	PERF_CONST(RECORD_ITRACE_START),
  	PERF_CONST(RECORD_LOST_SAMPLES),
  	PERF_CONST(RECORD_SWITCH),
  	PERF_CONST(RECORD_SWITCH_CPU_WIDE),

  
  	PERF_CONST(RECORD_MISC_SWITCH_OUT),

  	{ .name = NULL, },

  };

  static PyObject *pyrf__tracepoint(struct pyrf_evsel *pevsel,
  				  PyObject *args, PyObject *kwargs)
  {
  	struct event_format *tp_format;
  	static char *kwlist[] = { "sys", "name", NULL };
  	char *sys  = NULL;
  	char *name = NULL;
  
  	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ss", kwlist,
  					 &sys, &name))
  		return NULL;
  
  	tp_format = trace_event__tp_format(sys, name);
  	if (IS_ERR(tp_format))
  		return PyInt_FromLong(-1);
  
  	return PyInt_FromLong(tp_format->id);
  }

  static PyMethodDef perf__methods[] = {

  	{
  		.ml_name  = "tracepoint",
  		.ml_meth  = (PyCFunction) pyrf__tracepoint,
  		.ml_flags = METH_VARARGS | METH_KEYWORDS,
  		.ml_doc	  = PyDoc_STR("Get tracepoint config.")
  	},

  	{ .ml_name = NULL, }

  };
  
  PyMODINIT_FUNC initperf(void)
  {
  	PyObject *obj;
  	int i;
  	PyObject *dict, *module = Py_InitModule("perf", perf__methods);
  
  	if (module == NULL ||
  	    pyrf_event__setup_types() < 0 ||
  	    pyrf_evlist__setup_types() < 0 ||
  	    pyrf_evsel__setup_types() < 0 ||
  	    pyrf_thread_map__setup_types() < 0 ||
  	    pyrf_cpu_map__setup_types() < 0)
  		return;

  	/* The page_size is placed in util object. */

  	page_size = sysconf(_SC_PAGE_SIZE);

  	Py_INCREF(&pyrf_evlist__type);
  	PyModule_AddObject(module, "evlist", (PyObject*)&pyrf_evlist__type);
  
  	Py_INCREF(&pyrf_evsel__type);
  	PyModule_AddObject(module, "evsel", (PyObject*)&pyrf_evsel__type);

  	Py_INCREF(&pyrf_mmap_event__type);
  	PyModule_AddObject(module, "mmap_event", (PyObject *)&pyrf_mmap_event__type);
  
  	Py_INCREF(&pyrf_lost_event__type);
  	PyModule_AddObject(module, "lost_event", (PyObject *)&pyrf_lost_event__type);
  
  	Py_INCREF(&pyrf_comm_event__type);
  	PyModule_AddObject(module, "comm_event", (PyObject *)&pyrf_comm_event__type);
  
  	Py_INCREF(&pyrf_task_event__type);
  	PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
  
  	Py_INCREF(&pyrf_throttle_event__type);
  	PyModule_AddObject(module, "throttle_event", (PyObject *)&pyrf_throttle_event__type);
  
  	Py_INCREF(&pyrf_task_event__type);
  	PyModule_AddObject(module, "task_event", (PyObject *)&pyrf_task_event__type);
  
  	Py_INCREF(&pyrf_read_event__type);
  	PyModule_AddObject(module, "read_event", (PyObject *)&pyrf_read_event__type);
  
  	Py_INCREF(&pyrf_sample_event__type);
  	PyModule_AddObject(module, "sample_event", (PyObject *)&pyrf_sample_event__type);
  
  	Py_INCREF(&pyrf_context_switch_event__type);
  	PyModule_AddObject(module, "switch_event", (PyObject *)&pyrf_context_switch_event__type);

  	Py_INCREF(&pyrf_thread_map__type);
  	PyModule_AddObject(module, "thread_map", (PyObject*)&pyrf_thread_map__type);
  
  	Py_INCREF(&pyrf_cpu_map__type);
  	PyModule_AddObject(module, "cpu_map", (PyObject*)&pyrf_cpu_map__type);
  
  	dict = PyModule_GetDict(module);
  	if (dict == NULL)
  		goto error;
  
  	for (i = 0; perf__constants[i].name != NULL; i++) {
  		obj = PyInt_FromLong(perf__constants[i].value);
  		if (obj == NULL)
  			goto error;
  		PyDict_SetItemString(dict, perf__constants[i].name, obj);
  		Py_DECREF(obj);
  	}
  
  error:
  	if (PyErr_Occurred())
  		PyErr_SetString(PyExc_ImportError, "perf: Init failed!");
  }

  
  /*
   * Dummy, to avoid dragging all the test_attr infrastructure in the python
   * binding.
   */
  void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
                       int fd, int group_fd, unsigned long flags)
  {
  }