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moved some error messages which should have been mpix to mpi.

Reviewed by dinan.

released.  Arguably, we never actually needed them, since these tests
are already protected by "mpiversion=3.0" in the testlist.

No reviewer.

Reviewed by goodell.

A slightly older version of this patch was reviewed by goodell.

It's not valid for users to call any of the other category routines
(well, except maybe "category_changed") as long as this is 0.

Reviewed by rgunter@.

Need to handle NULLs correctly and also return strlen+1 in most cases.
Thanks to Ralf for originally spotting this bad behavior.

Reviewed by rgunter@.

This is perfectly valid according to MPI-3.  If the caller has no
interest in the name or description of a particular variable then
they may pass NULL for both the string and corresponding length
arguments.

Reviewed by rgunter@.

Attempts to verify that basic "MPI_T_" string handling complies with
the MPI-3 standard.

Reviewed by rgunter@.

Without this change, clang gets rather noisy about Valgrind's client
request macros whenever -Wunused-value is passed (e.g., when configuring
with --enable-strict).

No reviewer.

We incorrectly interchanged the context_id and recvcontext_id.  The bug
report and fix itself was provided by Devendar Bureddy
<bureddy@cse.ohio-state.edu> (thanks!).  I wrote the regression test
portion of the commit.

No reviewer.

r10444.

No reviewer.

get the nightly snapshots build correctly.

No reviewer.

No reviewer.

No reviewer.

MPICH2 --> MPICH1 move.

No reviewer.

Reviewed by robl.

Copy/paste oops.

Reviewer: none

Implemented the local flush operations in terms of the full flush operations.

Reviewer: goodell

Reviewer: goodell

The RMA op dispatch macro was previously defined in a private header used by
the high level routines.  This has been moved to mpiimpl.h to join the rest of
the RMA op table code.   This will allow other routines to dispatch RMA ops at
the ADI correctly.

Reviewer: goodell.

Added a new inline function to free the ops list.  This is much clearer than
how it was done previously and should make it easier to see when/where we
can assume the ops list has been totally emptied.

Reviewer: goodell

Refactored RMA ops enqueue/dequeue operations into inline functions to reduce
copy/paste code.  Added extra safety checks that will be needed as we renovate
for MPI-3.

Reviewer: goodell

No reviewer.

No reviewer.

No reviewer.

The lock packet may not be at the head of the queue, so the trailing get
optimization needed to be updated to not skip over the first element.  This is
a performance, not a correctness fix.

Reviewer: none

This commit implements MPI-3 RMA's flush and flush_all operations.

Reviewer: buntinas

Added a shared lock, third-party communication test for MPI-3 RMA flush.

Reviewer: buntinas

Updated passive target synchronization to allow the RMA lock op to be omitted
from the op list when the lock is immediately requested.  This is needed to
implement MPI-3 RMA flush operations.

Reviewer: buntinas

When enabled, this mode of operation immediately requests the lock when
MPI_Win_lock is called.  Currently, this is enabled by setting the
MPICH_RMA_LOCK_IMMED environment variable.  In the future, we can also make
this mode of operation available though an info/assert.  This capability is
needed to implement MPI-3's flush operations.

Reviewer: buntinas

Factored out code to initiate a lock operation and to wait for its completion.
This will facilitate future changes, where the lock request can come from
several different parts of the code.

Reviewer: buntinas