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import sys
import inspect
import os.path
import urllib.parse
import csv
import sqlite3
import re
class Report:
class Error(Exception):
pass
class Error_MissingDatabaseFile(Error):
def __init__(self, filename):
super().__init__(f'Database file {filename} does not exist.')
class Error_InvalidDatabaseFile(Error):
def __init__(self, filename):
super().__init__(f'Database file {filename} could not be opened and appears to be invalid.')
class Error_InvalidSQL(Error):
def __init__(self, sql):
super().__init__(f'Bad SQL statement: {sql}')
EXIT_HELP = 25
EXIT_DB = 26
EXIT_NODATA = 27
EXIT_SCRIPT = 28
MEM_KIND_STRS_CTE = """
MemKindStrs (id, name) AS (
VALUES
(0, 'Pageable'),
(1, 'Pinned'),
(2, 'Device'),
(3, 'Array'),
(4, 'Unknown')
),
"""
MEM_OPER_STRS_CTE = """
MemcpyOperStrs (id, name) AS (
VALUES
(0, '[CUDA memcpy Unknown]'),
(1, '[CUDA memcpy HtoD]'),
(2, '[CUDA memcpy DtoH]'),
(3, '[CUDA memcpy HtoA]'),
(4, '[CUDA memcpy AtoH]'),
(5, '[CUDA memcpy AtoA]'),
(6, '[CUDA memcpy AtoD]'),
(7, '[CUDA memcpy DtoA]'),
(8, '[CUDA memcpy DtoD]'),
(9, '[CUDA memcpy HtoH]'),
(10, '[CUDA memcpy PtoP]'),
(11, '[CUDA Unified Memory memcpy HtoD]'),
(12, '[CUDA Unified Memory memcpy DtoH]'),
(13, '[CUDA Unified Memory memcpy DtoD]')
),
"""
_LOAD_TABLE_QUERY = """
SELECT name
FROM sqlite_master
WHERE type LIKE 'table'
OR type LIKE 'view';
"""
_boilerplate_statements = [
f'pragma cache_size=-{32 * 1024}', # Set page cache to 32MB
]
short_name = None
usage = "{SCRIPT} -- NO USAGE INFORMATION PROVIDED"
table_checks = {}
statements = []
query = "SELECT 1 AS 'ONE'"
def __init__(self, dbfile, args=[]):
self._tables = None
self._dbcon = None
self._dbcur = None
self._dbfile = dbfile
self._args = args
self._headers = []
# Check DB file
if not os.path.exists(self._dbfile):
raise self.Error_MissingDatabaseFile(self._dbfile)
# Open DB file
dburi_query = {
'mode': 'ro',
'nolock': '1',
'immutable': '1'
}
qstr = urllib.parse.urlencode(dburi_query)
urlstr = urllib.parse.urlunsplit(['file', '', os.path.abspath(self._dbfile), qstr, ''])
try:
self._dbcon = sqlite3.connect(urlstr, isolation_level=None, uri=True)
except sqlite3.Error:
self._dbcon = None
raise self.Error_InvalidDatabaseFile(self._dbfile)
# load tables
try:
cur = self._dbcon.execute(self._LOAD_TABLE_QUERY)
except sqlite3.Error:
raise self.Error_InvalidDatabaseFile(self._dbfile)
self._tables = set(r[0] for r in cur.fetchall())
def __del__(self):
if self._dbcon != None:
self._dbcon.close()
def table_exists(self, table):
return table in self._tables
def search_tables(self, regex_str):
regex = re.compile(regex_str)
matches = []
for t in self._tables:
if regex.search(t) != None:
matches.append(t)
return matches
def setup(self):
for table, errmsg in self.table_checks.items():
if not self.table_exists(table):
return errmsg
def get_statements(self):
return self.statements
def _execute_statement(self, stmt):
if self._dbcon == None:
raise RuntimeError(f'Called {__name__}() with invalid database connection.')
try:
self._dbcon.execute(stmt)
except sqlite3.Error as err:
return str(err)
def run_statements(self):
for stmt in self._boilerplate_statements:
errmsg = self._execute_statement(stmt)
if errmsg != None:
return errmsg
for stmt in self.get_statements():
errmsg = self._execute_statement(stmt)
if errmsg != None:
return errmsg
def get_query(self):
return self.query
def run_query(self):
csvw = csv.writer(sys.stdout)
qcur = self._dbcon.execute(self.get_query())
qcur.arraysize = 100
header = list(d[0] for d in qcur.description)
csvw.writerow(header)
rows = qcur.fetchmany()
while rows != []:
csvw.writerows(rows)
rows = qcur.fetchmany()
def start_query(self):
if self._dbcon == None:
raise RuntimeError(f'Called {__name__}() with invalid database connection.')
if self._dbcur != None:
raise RuntimeError(f'Called {__name__}() more than once.')
try:
self._dbcur = self._dbcon.execute(self.get_query())
except sqlite3.Error as err:
return str(err)
self._headers = list(d[0] for d in self._dbcur.description)
def get_query_row(self):
if self._dbcon == None:
raise RuntimeError(f'Called {__name__}() with invalid database connection.')
if self._dbcur == None:
raise RuntimeError(f'Called {__name__}() without valid query.')
row = self._dbcur.fetchone()
if row == None:
del self._dbcur
self._dbcur = None
return row
@property
def dbfile(self):
return self._dbfile
@property
def args(self):
return self._args
@property
def headers(self):
return self._headers
@classmethod
def get_short_name(klass):
if klass.short_name == None:
klass.short_name = os.path.basename(inspect.getmodule(klass).__file__)
if klass.short_name.endswith('.py'):
klass.short_name = klass.short_name[0:-3]
return klass.short_name
@classmethod
def get_usage(klass):
return klass.usage.format(SCRIPT=klass.get_short_name())
@classmethod
def Report(klass, dbfile, args):
try:
report = klass(dbfile, args)
except (klass.Error_MissingDatabaseFile, klass.Error_InvalidDatabaseFile) as err:
return None, klass.EXIT_DB, str(err)
errmsg = report.setup()
if errmsg != None:
return None, klass.EXIT_NODATA, errmsg.format(DBFILE=report.dbfile)
errmsg = report.run_statements()
if errmsg != None:
return None, klass.EXIT_SCRIPT, errmsg
errmsg = report.start_query()
if errmsg != None:
return None, klass.EXIT_SCRIPT, errmsg
return report, None, None
@classmethod
def Main(klass):
if len(sys.argv) <= 1:
print(klass.get_usage())
exit(klass.EXIT_HELP)
dbfile = sys.argv[1]
args = sys.argv[2:]
report, exitval, errmsg = klass.Report(dbfile, args)
if report == None:
print(errmsg, file=sys.stderr)
exit(exitval)
csvw = csv.writer(sys.stdout)
csvw.writerow(report.headers)
while True:
row = report.get_query_row()
if row == None:
break
csvw.writerow(row)
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