CVS log for pvfs2/src/io/description/pint-request.h
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merged in changes from summer at LANL

merging hints/events code into trunk.

Reverse merged and ported to HEAD.

hints and events.

Merge HEAD changes to TAS-branch.

Allocate request state and reqstack structures in one go to save some mallocing.  Also export multi-request-state allocators to further reduce mallocs in the many-server IO case.

Reverse merge from trunk to lockd-branch...

reverse merge of branch

reverse merge of trunk to branch

remove unused encode_PINT_Request stubs

merging small I/O changes to trunk.  The majority of this commit includes the
new small I/O state machines on client and server, and the modifications to
the client IO state machine.  It also includes mods to the zero-fill code
to perform zero-fill of holes only if they exist instead of zero-ing the entire
memory region initially.  Also, some debug stuff has been added to the
state machine processing code to print enter/exit of state machines if sm
debug is enabled.  The genconfig now includes ioports/metaports for running
multiple servers on the same host for testing.

*** empty log message ***

small I/O changes in sio branch for now

updated to handle request type offset correctly

updates to my event changes to bring them inline with trunk

Updating request and distribution code to allow for secondary data servers.

Also converted naming of functions in pint-request.h to the PVFS2 standard.

pete's suggested fix to prevent 64->32 bit casts from pulling the wrong half of
a value on ppc64

make sure we zero out all bits of what could be a 64 bit value on some
platforms before we stuff a 32 bit value in there.  Fixes a longstanding
Haymore bug where previous garbage was giving us a bogus pointer after
encoding.

change the semantics of decode_skip4 so we can use it in endecode_fields entries
align PVFS_servreq_setattr
align PVFS_symlink_attr
align PVFS_metafile_attr_dfiles
align all strings to 8

make sure entire request is 8-byte aligned

Distribution cleanup and refactoring.  All naming is consistent with PVFS2
naming schemes.  Added new methods PINT_dist_methods to enable distribution
to determine the number of datafiles to use.  Removed unused methods (encode
and decode) from distributions (encode_lebf and decode_lebf are the preferred
mechanism).

Update naming conventions to match current standards.

Rename PVFS_Dist to PINT_dist
PVFS_Dist_create => PVFS_dist_create
PVFS_Dist_free => PVFS_dist_free

add descriptive comments

some 64 bit fixes; maxel has to be big enough to handle > 2G sizes now
that we use tiled requests

Changed iod_num and iod_count to server_nr and server_ct.

add messy encoding rules for PVFS_Request

working on stupid commit thing

fixed encode/decode bug - hopfully last commit indicator approach!

reworked commited indicator and tweeked freeing code to get it working

fixed an oops

fixed bug in commit routine

 updated commit code - works better now, but has another recursive
 routine in it - clean that up another day

next version of request processor
removed start_offset and all code referring to it
moved eof_flag from result to request_state struct

fixed bug (maybe? need to check w/ walt) in macro, can't rely on
segment count to find end of request stream...

- merged in update request processing code from Walt, and did the bare
minimum of PVFS_sys_io and flowproto updates to support it
- more stuff can still be cleaned up, and we need to add hooks to get
to memory datatypes
- re-enabled compilation of request processing test programs

Aieeee....

New datatype request processing interface clumsily merged into tree.  For the
most part, things will work as before, but still need to:
- fix bug in precalculation when datatype offset is used
- fix data corruption when running multiple servers
- update flowproto-dump-offsets and enable again
- take out old #ifdef0'd code in bmi trove flowproto
- clean up flowproto's use of new interface

added refcount to requests, developed code for freeing requests

added new mode to request processor to skip logical bytes
cleaned up mode code

got rid of PVFS_count32 type; replaced with int32_t or uint32_t or int
where appropriate

got rid of PVFS_flag type and bmi_flag_t.  need to come back later and
convert the buffer_flag variables in BMI to named enumerations; they are
ints for now

renamed request processing mode from CKSZ2 to CKSIZE_MODIFY_OFFSET

added CKSZ2 mode - does check size without state copy and restore

fixed bug when first segment has non-zero offset

fixed some warnings - changed order of args for request commit

dded macros for accessing key infor out of structs

brought Walt's io description code over from the old pvfs2 tree