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65 Commits

Author SHA1 Message Date
Angus Salkeld
c7810b38b1 Remove IPC_NEEDS_RESPONSE_ACK and turn off shm ipc on solaris 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-08-31 14:53:38 +10:00
Angus Salkeld
50632154ed Catch disconnected sockets on Solaris 
It seems like poll() was not producing a POLLHUP
so we rely on qb_ipc_us_recv() returning -ENOTCONN.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-08-24 11:49:07 +10:00
Angus Salkeld
3b31023d84 IPC: use calloc instead of malloc to fix valgrind warnings 
This is to cleanup some valgrind warnings.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-07-17 12:22:17 +10:00
Angus Salkeld
73731f0643 IPC: if the server returns EAGAIN or ETIMEOUT the check the connection 
Mainly useful for shm, as the ringbuffer doesn't know the state
of the connection.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-06-06 13:46:58 +10:00
Angus Salkeld
1e81530332 IPC: On bsd's use the notifier for responses 
The point of this is to catch connection failures
more reliably.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-06-01 11:12:44 +10:00
Angus Salkeld
70a9623a48 Remove message queues 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-05-28 13:41:04 +10:00
Angus Salkeld
b29326a363 IPC: add a is_connected client side function. 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-05-01 12:43:22 +10:00
Angus Salkeld
0e140bbf0f IPC: allow qb to bump the max_message_size 
I think this is more user friendly.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-04-23 20:42:45 +10:00
Angus Salkeld
72033f2b4f IPC: check for a sane minimum max_message_size 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-04-23 19:57:26 +10:00
Angus Salkeld
239ddc067f Handle errors more consistently 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-04-04 21:57:49 +10:00
Angus Salkeld
b650bf29d6 call recv_ready on socket types 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-04-04 21:57:49 +10:00
Angus Salkeld
c2f5f94312 IPC: make sure that the wrong union member is not written to. 
Move the connection type into the one_way struct. Seem
like a more obvious place for it next to the union.

Also it will help prevent issues like in qb_ipc_us_recv()
where there is a rather dodgy access of ctl->sent.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-03-09 12:18:02 +11:00
Angus Salkeld
d633b4e2fa IPC: split up the recv into chuncks of 2 seconds. 
This is because semaphores can't detect the other side has
failed/exited. So we rely on the socket poll to tell us.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-02-14 16:42:59 +11:00
Angus Salkeld
7a6382f0b6 Use safer versions of string functions (strcpy -> strlcpy) 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-02-08 22:00:49 +11:00
Angus Salkeld
18bcbef790 IPC: this 1 sec wait is slowing all normal dissconnects down 
this works just as well with a timeout of 0

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-01-23 10:39:31 +11:00
Angus Salkeld
295f7e48bb IPC: check for the server liveness before disconnecting. 
if the server is dead then is_connected will cause the resourses
to be properly cleaned up.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-01-21 22:05:50 +11:00
Angus Salkeld
2f99276d16 IPC: add a context to the client interface 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-01-18 15:24:34 +11:00
Angus Salkeld
477fac4e01 IPC: fix resource cleanup if the server dies 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2012-01-12 15:09:58 +11:00
Angus Salkeld
ab3dc60f7f Merge some portability changes from the mingw branch 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2011-12-21 14:23:43 +11:00
Andrew Beekhof
61d166abbc Support compilation on Mac OSX 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2011-12-19 22:16:30 +11:00
Angus Salkeld
e0c5187023 IPC: provide finer grained flowcontrol 
this will allow the user to control the behaviour better.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2011-12-14 00:55:06 +11:00
Angus Salkeld
ef77398738 Fix errors found by api-sanity-autotest 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2011-11-25 17:16:19 +11:00
Angus Salkeld
98493d9ae8 Change Lindent options to break the procedure type. 
so change:
int foo(void)

to

int
foo(void)

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2011-06-22 14:19:14 +10:00
Angus Salkeld
7a2b77f575 IPC: set the return status before cleaning up. 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2011-05-18 11:49:51 +10:00
Angus Salkeld
943b1c646b fix the FIXME's Jim pointed out 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2011-05-18 11:11:14 +10:00
Jim Meyering
9c467cb150 add FIXME comments for other NULL-deref-upon-OOM problems 
* lib/ipc_us.c (handle_new_connection):
* lib/loop_job.c (qb_loop_jobs_create):
* lib/loop_poll.c (qb_loop_poll_create):
* lib/loop_timerlist.c (qb_loop_timer_create):
* lib/ringbuffer.c (qb_rb_open):
* lib/ipcc.c (qb_ipcc_connect): Likewise.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2011-05-17 21:32:29 +10:00
Angus Salkeld
7d46c9ad3f IPC: use rb refcount to check for "connectiveness" 
This makes it possible the detect the loss of the server
and return -ENOTCONN.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-12-16 22:09:52 +11:00
Angus Salkeld
43181d5a95 IPC: add a timeout to the client recv functions 
Also allow the ringbuffer to pass ETIMEDOUT back to the
client applications.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-12-16 21:47:47 +11:00
Angus Salkeld
62cef166b4 IPC: improve shm performance by timing out earlier on poll() 
My receint change adding in a call to recv_ready(, 10) was
really slowing down the shm performance.
So now I am rather retrying which doesn't slow it down
and also passes "make check".

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-12-14 22:54:16 +11:00
Angus Salkeld
7f0e653794 IPC: return the correct number of bytes sent 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-12-14 21:51:08 +11:00
Angus Salkeld
8e291c78d5 IPC: return EAGAIN from qb_ipcc_recv() if recv_ready() returns 0 
found with corosync CTS

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-12-10 16:12:01 +11:00
Angus Salkeld
d0b14bdbdf IPC: return -ENOTCONN when the other end exits 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-12-10 12:22:03 +11:00
Angus Salkeld
720adbdddf IPC: add flow control & q_len to unix socket transport. 
This uses a small (2*int32_t) shared memory segment.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-11-03 09:48:15 +11:00
Angus Salkeld
31ca215188 IPC: add support for unix sockets 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-17 14:23:53 +11:00
Angus Salkeld
e9d10dfdbe IPC: remove flow control API and move functionality into send() 
There is no point in a separate API.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-14 09:16:00 +11:00
Angus Salkeld
0d9f8720b9 IPC: add qb_ipcc_sendv_recv() convenience function. 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-13 10:01:30 +11:00
Angus Salkeld
e1686dbd6a IPC: add support for flowcontrol & rate limiting 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-12 21:53:53 +11:00
Angus Salkeld
1a13b65de1 IPC: cleanup some formatting. 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-12 21:53:52 +11:00
Angus Salkeld
99a8264550 IPC: improve send/recv error handling 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-12 21:53:52 +11:00
Angus Salkeld
3dcd1126f6 IPC: remove qb_ipcc_event_release() 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-12 21:46:53 +11:00
Angus Salkeld
82c13bdd2b IPC: make events always use socket notification 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-06 20:39:23 +11:00
Angus Salkeld
e7aad8fad5 IPC: use poll() to prevent a recv() blocking 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-06 20:39:23 +11:00
Angus Salkeld
e0f942bfee IPC: teach event_recv() to take a timeout 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-06 20:39:23 +11:00
Angus Salkeld
c1a3b0d029 IPC: add sendv() functions to handle iovecs. 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-06 20:39:23 +11:00
Angus Salkeld
a7bf0518a7 add qbdefs.h with some common defines. 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-10-04 10:04:01 +11:00
Angus Salkeld
e3a6cd6ad6 Delete unchecked API (to be re-added later). 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-09-30 20:49:11 +10:00
Angus Salkeld
86c84f6ae0 IPC: new auth improvement and limits work around. 
Create the queues/ringbuffers on the server so we don't
have to modify proc entries. Then chown them so that
the clients can access them.

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-09-30 20:17:59 +10:00
Angus Salkeld
b6d4fb95b8 IPC: add events back (were dispatch messages in corosync) 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-09-29 14:32:51 +10:00
Angus Salkeld
64b4aac413 IPC: un-const the data pointer in recv() 
Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-09-29 14:32:51 +10:00
Angus Salkeld
b28173ee81 IPC: get shm & pmq working 
Note: pmq needs "sudo make check"

Signed-off-by: Angus Salkeld <asalkeld@redhat.com>
 2010-09-07 14:11:42 +10:00