Bitmessage/MiNode
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Set a row factory instead of nesting the iterator, iterate through the cursor

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This commit is contained in:
Lee Miller 2024-09-11 02:35:09 +03:00
parent 5794fcbbee
commit 768bb29940
Signed by: lee.miller
GPG Key ID: 4F97A5EA88F4AB63
1 changed files with 13 additions and 14 deletions
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27
minode/sql.py
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@ -40,14 +40,16 @@ class Inventory():
cur.execute("INSERT INTO status VALUES ('lastvacuumtime', ?)", (now,)) cur.execute("INSERT INTO status VALUES ('lastvacuumtime', ?)", (now,))
self._db.commit() self._db.commit()
@staticmethod
def __object(cursor, row):
vector, expires, obj_type, version, stream, tag, data, offset = row
return structure.Object(
expires, obj_type, version, stream, data, offset,
tag=tag, vector=vector)
def __objects(self, cur): def __objects(self, cur):
return ( cur.row_factory = self.__object
structure.Object( return cur
expires, obj_type, version, stream, data, offset,
tag=tag, vector=vector)
for (vector, expires, obj_type, version, stream, tag, data, offset)
in cur.fetchall()
)
def cleanup(self): def cleanup(self):
with shared.objects_lock: with shared.objects_lock:
@ -80,7 +82,7 @@ class Inventory():
' ORDER BY random()', ' ORDER BY random()',
(int(time.time()), stream or shared.stream) (int(time.time()), stream or shared.stream)
) )
return [v for v, in cur.fetchall()] return [v for v, in cur]
def get(self, vector, default=None): def get(self, vector, default=None):
try: try:
@ -90,7 +92,7 @@ class Inventory():
def keys(self): def keys(self):
cur = self._db.execute('SELECT vector FROM objects') cur = self._db.execute('SELECT vector FROM objects')
return (v for v, in cur.fetchall()) return (v for v, in cur)
def values(self): def values(self):
cur = self._db.execute('SELECT * FROM objects') cur = self._db.execute('SELECT * FROM objects')
@ -114,14 +116,11 @@ class Inventory():
def __getitem__(self, vector): def __getitem__(self, vector):
cur = self._db.execute( cur = self._db.execute(
'SELECT * FROM objects WHERE vector = ?', (vector,)) 'SELECT * FROM objects WHERE vector = ?', (vector,))
cur.row_factory = self.__object
item = cur.fetchone() item = cur.fetchone()
if item is None: if item is None:
raise KeyError(vector) raise KeyError(vector)
vector, expires, obj_type, version, stream, tag, data, offset = item return item
return structure.Object(
expires, obj_type, version, stream, data, offset,
tag=tag, vector=vector
)
def __delitem__(self, vector): def __delitem__(self, vector):
with shared.objects_lock: # KeyError with shared.objects_lock: # KeyError