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# export-to-postgresql.py: export perf data to a postgresql database
# Copyright (c) 2014, Intel Corporation.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
# version 2, as published by the Free Software Foundation.
#
# This program is distributed in the hope it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
# more details.

import os
import sys
import struct
import datetime

from PySide.QtSql import *

# Need to access PostgreSQL C library directly to use COPY FROM STDIN
from ctypes import *
libpq = CDLL("libpq.so.5")
PQconnectdb = libpq.PQconnectdb
PQconnectdb.restype = c_void_p
PQfinish = libpq.PQfinish
PQstatus = libpq.PQstatus
PQexec = libpq.PQexec
PQexec.restype = c_void_p
PQresultStatus = libpq.PQresultStatus
PQputCopyData = libpq.PQputCopyData
PQputCopyData.argtypes = [ c_void_p, c_void_p, c_int ]
PQputCopyEnd = libpq.PQputCopyEnd
PQputCopyEnd.argtypes = [ c_void_p, c_void_p ]

sys.path.append(os.environ['PERF_EXEC_PATH'] + \
	'/scripts/python/Perf-Trace-Util/lib/Perf/Trace')

# These perf imports are not used at present
#from perf_trace_context import *
#from Core import *

perf_db_export_mode = True
perf_db_export_calls = False

def usage():
	print >> sys.stderr, "Usage is: export-to-postgresql.py <database name> [<columns>] [<calls>]"
	print >> sys.stderr, "where:	columns		'all' or 'branches'"
	print >> sys.stderr, "		calls		'calls' => create calls table"
	raise Exception("Too few arguments")

if (len(sys.argv) < 2):
	usage()

dbname = sys.argv[1]

if (len(sys.argv) >= 3):
	columns = sys.argv[2]
else:
	columns = "all"

if columns not in ("all", "branches"):
	usage()

branches = (columns == "branches")

if (len(sys.argv) >= 4):
	if (sys.argv[3] == "calls"):
		perf_db_export_calls = True
	else:
		usage()

output_dir_name = os.getcwd() + "/" + dbname + "-perf-data"
os.mkdir(output_dir_name)

def do_query(q, s):
	if (q.exec_(s)):
		return
	raise Exception("Query failed: " + q.lastError().text())

print datetime.datetime.today(), "Creating database..."

db = QSqlDatabase.addDatabase('QPSQL')
query = QSqlQuery(db)
db.setDatabaseName('postgres')
db.open()
try:
	do_query(query, 'CREATE DATABASE ' + dbname)
except:
	os.rmdir(output_dir_name)
	raise
query.finish()
query.clear()
db.close()

db.setDatabaseName(dbname)
db.open()

query = QSqlQuery(db)
do_query(query, 'SET client_min_messages TO WARNING')

do_query(query, 'CREATE TABLE selected_events ('
		'id		bigint		NOT NULL,'
		'name		varchar(80))')
do_query(query, 'CREATE TABLE machines ('
		'id		bigint		NOT NULL,'
		'pid		integer,'
		'root_dir 	varchar(4096))')
do_query(query, 'CREATE TABLE threads ('
		'id		bigint		NOT NULL,'
		'machine_id	bigint,'
		'process_id	bigint,'
		'pid		integer,'
		'tid		integer)')
do_query(query, 'CREATE TABLE comms ('
		'id		bigint		NOT NULL,'
		'comm		varchar(16))')
do_query(query, 'CREATE TABLE comm_threads ('
		'id		bigint		NOT NULL,'
		'comm_id	bigint,'
		'thread_id	bigint)')
do_query(query, 'CREATE TABLE dsos ('
		'id		bigint		NOT NULL,'
		'machine_id	bigint,'
		'short_name	varchar(256),'
		'long_name	varchar(4096),'
		'build_id	varchar(64))')
do_query(query, 'CREATE TABLE symbols ('
		'id		bigint		NOT NULL,'
		'dso_id		bigint,'
		'sym_start	bigint,'
		'sym_end	bigint,'
		'binding	integer,'
		'name		varchar(2048))')
do_query(query, 'CREATE TABLE branch_types ('
		'id		integer		NOT NULL,'
		'name		varchar(80))')

if branches:
	do_query(query, 'CREATE TABLE samples ('
		'id		bigint		NOT NULL,'
		'evsel_id	bigint,'
		'machine_id	bigint,'
		'thread_id	bigint,'
		'comm_id	bigint,'
		'dso_id		bigint,'
		'symbol_id	bigint,'
		'sym_offset	bigint,'
		'ip		bigint,'
		'time		bigint,'
		'cpu		integer,'
		'to_dso_id	bigint,'
		'to_symbol_id	bigint,'
		'to_sym_offset	bigint,'
		'to_ip		bigint,'
		'branch_type	integer,'
		'in_tx		boolean)')
else:
	do_query(query, 'CREATE TABLE samples ('
		'id		bigint		NOT NULL,'
		'evsel_id	bigint,'
		'machine_id	bigint,'
		'thread_id	bigint,'
		'comm_id	bigint,'
		'dso_id		bigint,'
		'symbol_id	bigint,'
		'sym_offset	bigint,'
		'ip		bigint,'
		'time		bigint,'
		'cpu		integer,'
		'to_dso_id	bigint,'
		'to_symbol_id	bigint,'
		'to_sym_offset	bigint,'
		'to_ip		bigint,'
		'period		bigint,'
		'weight		bigint,'
		'transaction	bigint,'
		'data_src	bigint,'
		'branch_type	integer,'
		'in_tx		boolean)')

if perf_db_export_calls:
	do_query(query, 'CREATE TABLE call_paths ('
		'id		bigint		NOT NULL,'
		'parent_id	bigint,'
		'symbol_id	bigint,'
		'ip		bigint)')
	do_query(query, 'CREATE TABLE calls ('
		'id		bigint		NOT NULL,'
		'thread_id	bigint,'
		'comm_id	bigint,'
		'call_path_id	bigint,'
		'call_time	bigint,'
		'return_time	bigint,'
		'branch_count	bigint,'
		'call_id	bigint,'
		'return_id	bigint,'
		'parent_call_path_id	bigint,'
		'flags		integer)')

do_query(query, 'CREATE VIEW samples_view AS '
	'SELECT '
		'id,'
		'time,'
		'cpu,'
		'(SELECT pid FROM threads WHERE id = thread_id) AS pid,'
		'(SELECT tid FROM threads WHERE id = thread_id) AS tid,'
		'(SELECT comm FROM comms WHERE id = comm_id) AS command,'
		'(SELECT name FROM selected_events WHERE id = evsel_id) AS event,'
		'to_hex(ip) AS ip_hex,'
		'(SELECT name FROM symbols WHERE id = symbol_id) AS symbol,'
		'sym_offset,'
		'(SELECT short_name FROM dsos WHERE id = dso_id) AS dso_short_name,'
		'to_hex(to_ip) AS to_ip_hex,'
		'(SELECT name FROM symbols WHERE id = to_symbol_id) AS to_symbol,'
		'to_sym_offset,'
		'(SELECT short_name FROM dsos WHERE id = to_dso_id) AS to_dso_short_name,'
		'(SELECT name FROM branch_types WHERE id = branch_type) AS branch_type_name,'
		'in_tx'
	' FROM samples')


file_header = struct.pack("!11sii", "PGCOPY\n\377\r\n\0", 0, 0)
file_trailer = "\377\377"

def open_output_file(file_name):
	path_name = output_dir_name + "/" + file_name
	file = open(path_name, "w+")
	file.write(file_header)
	return file

def close_output_file(file):
	file.write(file_trailer)
	file.close()

def copy_output_file_direct(file, table_name):
	close_output_file(file)
	sql = "COPY " + table_name + " FROM '" + file.name + "' (FORMAT 'binary')"
	do_query(query, sql)

# Use COPY FROM STDIN because security may prevent postgres from accessing the files directly
def copy_output_file(file, table_name):
	conn = PQconnectdb("dbname = " + dbname)
	if (PQstatus(conn)):
		raise Exception("COPY FROM STDIN PQconnectdb failed")
	file.write(file_trailer)
	file.seek(0)
	sql = "COPY " + table_name + " FROM STDIN (FORMAT 'binary')"
	res = PQexec(conn, sql)
	if (PQresultStatus(res) != 4):
		raise Exception("COPY FROM STDIN PQexec failed")
	data = file.read(65536)
	while (len(data)):
		ret = PQputCopyData(conn, data, len(data))
		if (ret != 1):
			raise Exception("COPY FROM STDIN PQputCopyData failed, error " + str(ret))
		data = file.read(65536)
	ret = PQputCopyEnd(conn, None)
	if (ret != 1):
		raise Exception("COPY FROM STDIN PQputCopyEnd failed, error " + str(ret))
	PQfinish(conn)

def remove_output_file(file):
	name = file.name
	file.close()
	os.unlink(name)

evsel_file		= open_output_file("evsel_table.bin")
machine_file		= open_output_file("machine_table.bin")
thread_file		= open_output_file("thread_table.bin")
comm_file		= open_output_file("comm_table.bin")
comm_thread_file	= open_output_file("comm_thread_table.bin")
dso_file		= open_output_file("dso_table.bin")
symbol_file		= open_output_file("symbol_table.bin")
branch_type_file	= open_output_file("branch_type_table.bin")
sample_file		= open_output_file("sample_table.bin")
if perf_db_export_calls:
	call_path_file		= open_output_file("call_path_table.bin")
	call_file		= open_output_file("call_table.bin")

def trace_begin():
	print datetime.datetime.today(), "Writing to intermediate files..."
	# id == 0 means unknown.  It is easier to create records for them than replace the zeroes with NULLs
	evsel_table(0, "unknown")
	machine_table(0, 0, "unknown")
	thread_table(0, 0, 0, -1, -1)
	comm_table(0, "unknown")
	dso_table(0, 0, "unknown", "unknown", "")
	symbol_table(0, 0, 0, 0, 0, "unknown")
	sample_table(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
	if perf_db_export_calls:
		call_path_table(0, 0, 0, 0)

unhandled_count = 0

def trace_end():
	print datetime.datetime.today(), "Copying to database..."
	copy_output_file(evsel_file,		"selected_events")
	copy_output_file(machine_file,		"machines")
	copy_output_file(thread_file,		"threads")
	copy_output_file(comm_file,		"comms")
	copy_output_file(comm_thread_file,	"comm_threads")
	copy_output_file(dso_file,		"dsos")
	copy_output_file(symbol_file,		"symbols")
	copy_output_file(branch_type_file,	"branch_types")
	copy_output_file(sample_file,		"samples")
	if perf_db_export_calls:
		copy_output_file(call_path_file,	"call_paths")
		copy_output_file(call_file,		"calls")

	print datetime.datetime.today(), "Removing intermediate files..."
	remove_output_file(evsel_file)
	remove_output_file(machine_file)
	remove_output_file(thread_file)
	remove_output_file(comm_file)
	remove_output_file(comm_thread_file)
	remove_output_file(dso_file)
	remove_output_file(symbol_file)
	remove_output_file(branch_type_file)
	remove_output_file(sample_file)
	if perf_db_export_calls:
		remove_output_file(call_path_file)
		remove_output_file(call_file)
	os.rmdir(output_dir_name)
	print datetime.datetime.today(), "Adding primary keys"
	do_query(query, 'ALTER TABLE selected_events ADD PRIMARY KEY (id)')
	do_query(query, 'ALTER TABLE machines        ADD PRIMARY KEY (id)')
	do_query(query, 'ALTER TABLE threads         ADD PRIMARY KEY (id)')
	do_query(query, 'ALTER TABLE comms           ADD PRIMARY KEY (id)')
	do_query(query, 'ALTER TABLE comm_threads    ADD PRIMARY KEY (id)')
	do_query(query, 'ALTER TABLE dsos            ADD PRIMARY KEY (id)')
	do_query(query, 'ALTER TABLE symbols         ADD PRIMARY KEY (id)')
	do_query(query, 'ALTER TABLE branch_types    ADD PRIMARY KEY (id)')
	do_query(query, 'ALTER TABLE samples         ADD PRIMARY KEY (id)')
	if perf_db_export_calls:
		do_query(query, 'ALTER TABLE call_paths      ADD PRIMARY KEY (id)')
		do_query(query, 'ALTER TABLE calls           ADD PRIMARY KEY (id)')

	print datetime.datetime.today(), "Adding foreign keys"
	do_query(query, 'ALTER TABLE threads '
					'ADD CONSTRAINT machinefk  FOREIGN KEY (machine_id)   REFERENCES machines   (id),'
					'ADD CONSTRAINT processfk  FOREIGN KEY (process_id)   REFERENCES threads    (id)')
	do_query(query, 'ALTER TABLE comm_threads '
					'ADD CONSTRAINT commfk     FOREIGN KEY (comm_id)      REFERENCES comms      (id),'
					'ADD CONSTRAINT threadfk   FOREIGN KEY (thread_id)    REFERENCES threads    (id)')
	do_query(query, 'ALTER TABLE dsos '
					'ADD CONSTRAINT machinefk  FOREIGN KEY (machine_id)   REFERENCES machines   (id)')
	do_query(query, 'ALTER TABLE symbols '
					'ADD CONSTRAINT dsofk      FOREIGN KEY (dso_id)       REFERENCES dsos       (id)')
	do_query(query, 'ALTER TABLE samples '
					'ADD CONSTRAINT evselfk    FOREIGN KEY (evsel_id)     REFERENCES selected_events (id),'
					'ADD CONSTRAINT machinefk  FOREIGN KEY (machine_id)   REFERENCES machines   (id),'
					'ADD CONSTRAINT threadfk   FOREIGN KEY (thread_id)    REFERENCES threads    (id),'
					'ADD CONSTRAINT commfk     FOREIGN KEY (comm_id)      REFERENCES comms      (id),'
					'ADD CONSTRAINT dsofk      FOREIGN KEY (dso_id)       REFERENCES dsos       (id),'
					'ADD CONSTRAINT symbolfk   FOREIGN KEY (symbol_id)    REFERENCES symbols    (id),'
					'ADD CONSTRAINT todsofk    FOREIGN KEY (to_dso_id)    REFERENCES dsos       (id),'
					'ADD CONSTRAINT tosymbolfk FOREIGN KEY (to_symbol_id) REFERENCES symbols    (id)')
	if perf_db_export_calls:
		do_query(query, 'ALTER TABLE call_paths '
					'ADD CONSTRAINT parentfk    FOREIGN KEY (parent_id)    REFERENCES call_paths (id),'
					'ADD CONSTRAINT symbolfk    FOREIGN KEY (symbol_id)    REFERENCES symbols    (id)')
		do_query(query, 'ALTER TABLE calls '
					'ADD CONSTRAINT threadfk    FOREIGN KEY (thread_id)    REFERENCES threads    (id),'
					'ADD CONSTRAINT commfk      FOREIGN KEY (comm_id)      REFERENCES comms      (id),'
					'ADD CONSTRAINT call_pathfk FOREIGN KEY (call_path_id) REFERENCES call_paths (id),'
					'ADD CONSTRAINT callfk      FOREIGN KEY (call_id)      REFERENCES samples    (id),'
					'ADD CONSTRAINT returnfk    FOREIGN KEY (return_id)    REFERENCES samples    (id),'
					'ADD CONSTRAINT parent_call_pathfk FOREIGN KEY (parent_call_path_id) REFERENCES call_paths (id)')
		do_query(query, 'CREATE INDEX pcpid_idx ON calls (parent_call_path_id)')

	if (unhandled_count):
		print datetime.datetime.today(), "Warning: ", unhandled_count, " unhandled events"
	print datetime.datetime.today(), "Done"

def trace_unhandled(event_name, context, event_fields_dict):
	global unhandled_count
	unhandled_count += 1

def sched__sched_switch(*x):
	pass

def evsel_table(evsel_id, evsel_name, *x):
	n = len(evsel_name)
	fmt = "!hiqi" + str(n) + "s"
	value = struct.pack(fmt, 2, 8, evsel_id, n, evsel_name)
	evsel_file.write(value)

def machine_table(machine_id, pid, root_dir, *x):
	n = len(root_dir)
	fmt = "!hiqiii" + str(n) + "s"
	value = struct.pack(fmt, 3, 8, machine_id, 4, pid, n, root_dir)
	machine_file.write(value)

def thread_table(thread_id, machine_id, process_id, pid, tid, *x):
	value = struct.pack("!hiqiqiqiiii", 5, 8, thread_id, 8, machine_id, 8, process_id, 4, pid, 4, tid)
	thread_file.write(value)

def comm_table(comm_id, comm_str, *x):
	n = len(comm_str)
	fmt = "!hiqi" + str(n) + "s"
	value = struct.pack(fmt, 2, 8, comm_id, n, comm_str)
	comm_file.write(value)

def comm_thread_table(comm_thread_id, comm_id, thread_id, *x):
	fmt = "!hiqiqiq"
	value = struct.pack(fmt, 3, 8, comm_thread_id, 8, comm_id, 8, thread_id)
	comm_thread_file.write(value)

def dso_table(dso_id, machine_id, short_name, long_name, build_id, *x):
	n1 = len(short_name)
	n2 = len(long_name)
	n3 = len(build_id)
	fmt = "!hiqiqi" + str(n1) + "si"  + str(n2) + "si" + str(n3) + "s"
	value = struct.pack(fmt, 5, 8, dso_id, 8, machine_id, n1, short_name, n2, long_name, n3, build_id)
	dso_file.write(value)

def symbol_table(symbol_id, dso_id, sym_start, sym_end, binding, symbol_name, *x):
	n = len(symbol_name)
	fmt = "!hiqiqiqiqiii" + str(n) + "s"
	value = struct.pack(fmt, 6, 8, symbol_id, 8, dso_id, 8, sym_start, 8, sym_end, 4, binding, n, symbol_name)
	symbol_file.write(value)

def branch_type_table(branch_type, name, *x):
	n = len(name)
	fmt = "!hiii" + str(n) + "s"
	value = struct.pack(fmt, 2, 4, branch_type, n, name)
	branch_type_file.write(value)

def sample_table(sample_id, evsel_id, machine_id, thread_id, comm_id, dso_id, symbol_id, sym_offset, ip, time, cpu, to_dso_id, to_symbol_id, to_sym_offset, to_ip, period, weight, transaction, data_src, branch_type, in_tx, *x):
	if branches:
		value = struct.pack("!hiqiqiqiqiqiqiqiqiqiqiiiqiqiqiqiiiB", 17, 8, sample_id, 8, evsel_id, 8, machine_id, 8, thread_id, 8, comm_id, 8, dso_id, 8, symbol_id, 8, sym_offset, 8, ip, 8, time, 4, cpu, 8, to_dso_id, 8, to_symbol_id, 8, to_sym_offset, 8, to_ip, 4, branch_type, 1, in_tx)
	else:
		value = struct.pack("!hiqiqiqiqiqiqiqiqiqiqiiiqiqiqiqiqiqiqiqiiiB", 21, 8, sample_id, 8, evsel_id, 8, machine_id, 8, thread_id, 8, comm_id, 8, dso_id, 8, symbol_id, 8, sym_offset, 8, ip, 8, time, 4, cpu, 8, to_dso_id, 8, to_symbol_id, 8, to_sym_offset, 8, to_ip, 8, period, 8, weight, 8, transaction, 8, data_src, 4, branch_type, 1, in_tx)
	sample_file.write(value)

def call_path_table(cp_id, parent_id, symbol_id, ip, *x):
	fmt = "!hiqiqiqiq"
	value = struct.pack(fmt, 4, 8, cp_id, 8, parent_id, 8, symbol_id, 8, ip)
	call_path_file.write(value)

def call_return_table(cr_id, thread_id, comm_id, call_path_id, call_time, return_time, branch_count, call_id, return_id, parent_call_path_id, flags, *x):
	fmt = "!hiqiqiqiqiqiqiqiqiqiqii"
	value = struct.pack(fmt, 11, 8, cr_id, 8, thread_id, 8, comm_id, 8, call_path_id, 8, call_time, 8, return_time, 8, branch_count, 8, call_id, 8, return_id, 8, parent_call_path_id, 4, flags)
	call_file.write(value)