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s3: Restore async i/o with the "native" AIO interface

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eff3609 moved the async signal handler initialization to later in the process
to enable aio_fork and aio_pthread on platforms without realtime signals. This
commit broke the use of the native aio interface. aio_pending_size is
initialized to 0, so aio.c will not allow async i/0 at all if modules do not
set that variable correctly. Initialize to 100 right from the start.

Signed-off-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Tue Jun 26 14:08:22 CEST 2012 on sn-devel-104
This commit is contained in:
Volker Lendecke 2012-06-25 12:23:22 +02:00 committed by Stefan Metzmacher
parent 93399c1ec3
commit 5df1fda0f5
2 changed files with 1 additions and 4 deletions
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3
source3/smbd/aio.c
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@ -91,9 +91,6 @@ bool initialize_async_io_handler(void)
DEBUG(10, ("Failed to setup RT_SIGNAL_AIO handler\n"));
return false;
}
/* tevent supports 100 signal with SA_SIGINFO */
aio_pending_size = 100;
return true;
}

2
source3/smbd/globals.c
View File

@ -28,7 +28,7 @@
#if defined(HAVE_AIO)
struct aio_extra *aio_list_head = NULL;
struct tevent_signal *aio_signal_event = NULL;
int aio_pending_size = 0;
int aio_pending_size = 100; /* tevent supports 100 signals SA_SIGINFO */
int outstanding_aio_calls = 0;
#endif