Commit Graph

6516 Commits

Author SHA1 Message Date
5c48239372 Fixed doxygen documentation generation 2013-09-04 13:13:54 +02:00
f74f67540f Added spinlock protection for the session association to the DCB and
reworked the reference count mechanism on the session.  Introduced a
FREE state for the session and alter the session destruction flow so
that we only remove the session when all the DCB's have singled they
have finished processing events for the DCB rather than when the first
thread decides to clsoe the DCB.
2013-09-04 12:24:59 +02:00
8debc4433c Added a client NULL check in clientReply 2013-09-04 11:37:56 +02:00
be27d36f8c Added dcb NULL check in mysql_send_custom_error() 2013-09-04 11:26:14 +02:00
61df7eb07d Added checks against NULL in gw_read_backend_event for dcb->session and dcb->session->client 2013-09-04 10:57:08 +02:00
db164be946 Added spinlock protection for refcount increase in dcb_connect 2013-09-04 10:00:40 +02:00
8e97974216 Fixed return rc after:
routeQuery()
(dcb->func).close(dcb);

This will prevent setting again dcb->sate = DCB_STATE_POLLING in return_rc label.

The log entry for 

[gw_read_client_event] ioctl FIONREAD for fd 21 failed. errno 9, Bad file descriptor. dcb->state = 3

now is not present anymore.
2013-09-03 14:42:47 +02:00
a605b8fd9b Removed unused macros. 2013-09-02 22:21:28 +03:00
3d5c40e450 Removed unused macros. Fixed struct member order so that check field is again the last in struct and it detects memory overflows slightly better. 2013-09-02 21:54:24 +03:00
366441a4bb Added debug assert for checking return value of memory allocation. 2013-09-02 21:53:49 +03:00
c4ce2efd9f Added debug assert for DCB states prior processing. 2013-09-02 21:52:57 +03:00
5487f84532 Added logging to session refcount increment. Some minor improvements. 2013-09-02 21:52:09 +03:00
f80bb51db1 dcb_close sets some session fields to NULL:
dcb->session->client = NULL;

dcb->session = NULL;

There is a local copy of dcb->seesion before setting it to NULL
2013-09-02 19:33:55 +02:00
31cda5ad65 Added session refcount in session.h
The refcount is incremented in dcb_connect and in mysql_client.c after session_alloc
2013-09-02 10:26:34 +02:00
ce0085a078 Clean up. 2013-09-01 00:37:49 +03:00
757a043386 Replaced oinlined protocol creation with call to mysql_protocol_init. Clean up. 2013-09-01 00:36:31 +03:00
9df2040a8a Removed unused variables, changed call to mysql_protocol_init to reflect new prototype. 2013-09-01 00:32:57 +03:00
88ffcaa3d4 Removed 'extern' keyword from function declaration in headers. Functions are 'extern' by default.
Changed mysql_protocol_init prototype and implementation to return MySQLProtocol pointer instead of boolean.
2013-09-01 00:30:46 +03:00
9bf0f58526 introduce mysql_protocol_init. 2013-08-31 23:54:35 +03:00
3dff91e80f In gw_create_backend_connection, replaced inlined protocol init with call to mysql_protocol_init (mysql_common.c). Replaced fprintfs with logging commands. 2013-08-31 23:51:54 +03:00
c23168ed71 gw_do_connect_to_backend returned zero in case where connect failed with errno EINPROGRESS. Should have returned 1 to indicate that connection will be established asynchronously.
In the same case, checking for error by using getsockopt should be done when select returns, not after connect (man 2 connect).
2013-08-31 23:45:40 +03:00
9d6b13c288 Replaced macros with enumereted type. 2013-08-31 12:04:02 +03:00
a445b6ff37 Fixes for NULL test for function returns such as malloc() - as reported by Coverity 2013-08-29 13:34:21 +02:00
03725cabe3 Fixed compile issue in dcb.h 2013-08-29 13:17:19 +02:00
94a8ad68d3 Checked for bug #178. Added error logs to suitabl places. 2013-08-29 09:50:16 +03:00
527df6c7f3 Merge, mostly. 2013-08-28 23:26:09 +03:00
48165bf5cd Removed unused protocol_mutex and references to it. 2013-08-28 23:25:27 +03:00
134c33776e Added consistency check fields, and switched macros to enumerated types. 2013-08-28 23:23:05 +03:00
50a3cfdf49 Commented out some dead code. 2013-08-28 23:17:18 +03:00
ae9fce8591 Added write and read lock to DCB to protect concurrent threads fro executing EPOLLIN and EPOLLOUT events on same descriptor, respectively. Added consistency checks and trace logging. 2013-08-28 23:09:37 +03:00
f2f119f692 Removed some dead code 2013-08-28 23:08:51 +03:00
9a8e271417 client->data is copied to session->data already in session_alloc to ensure that authentication information is set when background connection is started to establish in concurrent thread. 2013-08-28 23:06:09 +03:00
786468fc5d Added status checks, removed some dead code, changed macros to enumerated types, renamed variables to reflect better what they mean. 2013-08-28 22:59:53 +03:00
8c8475740a Switched to booleans defined in stdbool.h 2013-08-28 22:49:27 +03:00
ff109c6319 dcb->state set wheere missing or changed 2013-08-27 10:52:43 +02:00
d0d68a69ca Added DCB_STATE_XXX in EPOLLIN/EPOLLOUT handlers and in accept() 2013-08-27 10:08:03 +02:00
49036894f5 In gw_connect_to_backend, first create socket, and establish socket connection, then in the end, dcb is added to epoll set. 2013-08-24 00:18:46 +03:00
df5f2f29b2 Removed undefined function declaration. Added trace and error log. 2013-08-23 23:25:12 +03:00
e345b23bcf Merge 2013-08-23 22:47:16 +03:00
6f0ccd7b42 Added static simple_mutex_t epoll_wait_mutex, which is acquired and released in poll_waitevents. 2013-08-23 22:45:06 +03:00
0a182913a1 in gw_MySQLAccept moved authentication packet send before adding new dcb to epoll set. 2013-08-23 22:39:42 +03:00
0612dae890 Added error log printing. 2013-08-23 22:31:08 +03:00
c9ff06e0f5 Increased maximum path length from 180 to 255, and replaced sprintf with snprintf to prevent buffer overflow. 2013-08-23 22:27:40 +03:00
52c30c3e58 Removed dcb->state set after func.close() 2013-08-23 14:17:00 +02:00
68a5a389ee Removed SS_DEBUG macros around necessary include directives. 2013-08-23 13:42:10 +03:00
481096ccef Added trace log to newSession and to closeSession. 2013-08-22 10:46:14 +03:00
0401290021 Added spinlock ses_lock to struct SESSION to ensure that for each session closeSession is called only once.
closeSession is called from mysql_backend.c:gw_read_backend_event, and from dcb.c:dcb_close.

This is part of Bug #163.
2013-08-22 10:42:18 +03:00
b18d89300d Bug 179 2013-08-22 00:26:24 +03:00
8dfd5de923 Fix merge 2013-08-22 00:01:44 +03:00
b6ba1954f5 Merge 2013-08-19 08:48:33 +03:00