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- make it easier to plug in a new events backend
- add simpler 'select' and 'epoll' backends
This is part of the effort to add good AIO support. The events_aio.c
backend is done, but sometimes dies with a SEGV, which is why it isn't
enabled yet.
epoll. It is not linked in anywhere yet - I'm committing it in case
anyone else wants to have a look at it.
The concept is quite strange really, but it seems to be the only way
that Linux 2.6.x can currently use a unified event model allowing for
AIO events and socket events to be waited for by a single unified
event wait function. You setup a epoll system, then setup a weird aio
event that points at the epoll system, then use io_getevents() to
actually do the waiting.
I'm hoping that kevents or a proper integration of epoll will allow us
to avoid ths rather hackish scheme, but meanwhile this is the only
path to proper AIO in Samba on Linux (without a horrible signals mess)
(NOTE: this code requires some kernel patches to work at the moment)
the difference between these at all, and in the future the
fact that INIT_OBJ_FILES include smb_build.h will be sufficient to
have recompiles at the right time.
for the case where, epoll isn't available at compile time
- only pass the private std_event_context, to the local function,
to get rid of the talloc_get_type() calls
- use the private pointer to std_event_context_init() to decide if we want to
disable epoll at runtime
metze
the events code replaces a destructor to one that returns allways -1
while it's calling the event handler
- we don't need the composite and winsrepl specific fixes any more
- this also fixes the problem with smbcli, dcerpc, cldap, ldap and nbt
request timeouts
metze
- fixed ncacn_ip_tcp to use the generic async name resolution methods,
so NBT names now work (as requested several times by abartlet!)
- changed resolve_name() to take an event_context, so it doesn't cause
the whole process to block
- cleaned up the talloc_find_parent_bytype() calls to go via a cleaner
event_context_find() call
some of our torture code does its own timeout processing, which means
there is no event timer in the event context. To fix this gererically
I have added a 30 second timout to all select/epoll calls so the
callers timeout loop is guaranteed to run eventually
using other implementations possible. This will be mostly usefull
for client apps which have there own event loop and want to
use our client libs
- add a example plugin for liboop (see http://liboop.org)
NOTE: this just compiles and is completly untested
and is commited only as example
metze
less likely that anyone will use pstring for new code
- got rid of winbind_client.h from includes.h. This one triggered a
huge change, as winbind_client.h was including system/filesys.h and
defining the old uint32 and uint16 types, as well as its own
pstring and fstring.
- removed the u32 hack in events.c as I think this was only needed as
tdb.h defines u32. Metze, can you check that this hack is indeed no
longer needed on your suse system?
+/* this #undef is needed on my SuSE 9.2 Box with glibc-devel-2.3.3-118 */
+#undef u32
as sys/epoll.h has this:
typedef union epoll_data
{
void *ptr;
int fd;
uint32_t u32;
uint64_t u64;
} epoll_data_t;
metze
