Some more tests in sandbox.

NEWS

@@ -8,6 +8,13 @@ What's new in psycopg 2.0 beta 7
 * Slightly better ZPsycopgDA (no more double connection objects in the menu
   and other minor fixes.)
   
+* ProgrammingError exceptions now have three extra attributes: .cursor
+  (it is possible to access the query that caused the exception using
+  error.cursor.query), .pgerror and .pgcode (PostgreSQL original error
+  text and code.)
+  
+* The build system uses pg_config when available.
+   
 * Documentation in the doc/ directory! (With many kudos to piro.)
 
 What's new in psycopg 2.0 beta 6

doc/extensions.rst

@@ -20,9 +20,12 @@ Connection and cursor factories
 
 psycopg 2 exposes two new-style classes that can be sub-classed and expanded to
 adapt them to the needs of the programmer: `cursor` and `connection`.  The
-`connection` class is usually sub-classed only to provide a . `cursor` is much
+`connection` class is usually sub-classed only to provide an easy way to create
-more interesting, because it is the class where query building, execution and
+customized cursors but other uses are possible. `cursor` is much more
-result type-casting into Python variables happens.
+interesting, because it is the class where query building, execution and result
+type-casting into Python variables happens.
+
+`connection` instances
 
 Row factories
 -------------
@@ -133,6 +136,7 @@ The above function call results in the SQL command::
 
     INSERT INTO atable (apoint) VALUES ((1.23, 4.56));
 
+
 .. _PEP-246: http://www.python.org/peps/pep-0246.html
 
 

psycopg/connection_type.c

@@ -300,6 +300,7 @@ connection_dealloc(PyObject* obj)
     
     Py_XDECREF(self->notice_list);
     Py_XDECREF(self->notifies);
+    Py_XDECREF(self->async_cursor);
     
     pthread_mutex_destroy(&(self->lock));
 

sandbox/stress.py

@@ -1,19 +1,11 @@
-import psycopg
+import psycopg2
-import psycopg.extras
+import threading, os, time, gc
 
-conn = psycopg.connect('dbname=test')
+for i in range(20000):
-#curs = conn.cursor()
+    conn = psycopg2.connect('dbname=test')
-#curs.execute("CREATE TABLE itest (n int4)")
+    del conn
-
+    if i%200 == 0:
-#for i in xrange(10000000):
+        datafile = os.popen('ps -p %s -o rss' % os.getpid())
-#    curs = conn.cursor()
+        line = datafile.readlines(2)[1].strip()
-#    curs.execute("INSERT INTO itest VALUES (1)")
+        datafile.close()
-#    curs.execute("SELECT '2003-12-12 10:00:00'::timestamp AS foo")
+        print str(i) + '\t' + line
-#    curs.execute("SELECT 'xxx' AS foo")
-#    curs.fetchall()
-#    curs.close()
-
-curs = conn.cursor(factory=psycopg.extras.DictCursor)
-curs.execute("select 1 as foo")
-x = curs.fetchone()
-print x['foo']

sandbox/stress2.py

@@ -0,0 +1,42 @@
+import psycopg2
+
+import threading, os, time, gc
+
+super_lock = threading.Lock()
+
+def f():
+    try:
+        conn = psycopg2.connect('dbname=testx')
+        #c = db.cursor()
+        #c.close()
+        #conn.close()
+        del conn
+    except:
+        pass
+        #print "ERROR"
+
+def g():
+    n = 30
+    k = 0
+    i = 1
+    while i > 0:
+        while n > 0:
+            threading.Thread(target=f).start()
+            time.sleep(0.001)
+            threading.Thread(target=f).start()
+            time.sleep(0.001)
+            threading.Thread(target=f).start()
+            n -= 1
+        while threading.activeCount() > 1:
+            time.sleep(0.01)
+        datafile = os.popen('ps -p %s -o rss' % os.getpid())
+        line = datafile.readlines(2)[1].strip()
+        datafile.close()
+        n = 30
+        print str(k*n) + '\t' + line
+        k += 1
+
+    while threading.activeCount()>1:
+        pass
+
+g()

sandbox/tzhalf.py

@@ -0,0 +1,9 @@
+import datetime
+import time
+import psycopg2
+
+conn = psycopg2.connect("dbname=test")
+curs = conn.cursor()
+curs.execute("set timezone = 'Asia/Calcutta'")
+curs.execute("SELECT now()")
+print curs.fetchone()[0]