+2004-12-16 Martin
+ - Finish the port to windows (using mingw32 for cross-compile)
+
+2004-11-28 Arnaud
+ - Main loop and datastructures of SURF. A cpu resource object is
+ functionnal. Surf can thus be used to create cpu's with variable
+ performance on which you can execute some actions.
+
+2004-11-15 Martin Quinson
+ - Port to ARM. Simply added the alignment and size descriptions. Should
+ work, but the ARM machines are so slow that I didn't had the opportunity
+ to 'make check' overthere yet.
+
+2004-11-15 Arnaud Legrand
+ - Trace manager now written. It uses a heap structure and is therefore
+ expected to be efficient. It may however be speeded up (particularly
+ when many events occur at the same date) by using red and black
+ trees. One day maybe...
+ - Max-min linear system solver written. It uses a sparse matrix
+ structure taking advantage of its expected use. Most operations are
+ O(1) and free/calloc are called as few as possible. The computation of
+ the minimum could however be improved by using a red and black tree
+ (again ! ;).
+
+2004-11-03 Arnaud Legrand
+ - Rename every gras_* function that was in xbt/ to its xbt_
+ counterpart.
+ - Add a heap and a doubly-linked list to xbt
+ - Added a dichotomy to the dictionnaries. make check works as well before
+ so I assume that the patch is correct. I do not know however if things
+ run effectively faster than before now. :)
+
+2004-10-29 Martin Quinson
+ - Introduction of the remote errors.
+ They are the result of a RMI/RPC on the remote machine.
+ ErrCodes being scalar values, you can't get the host on which those
+ errors did happen. Extending the error mecanism as in Gnome is possible.
+ No idea yet whether it is a good idea.
+
+2004-10-28 Martin Quinson
+ - Interface revolution: the Starred Structure Eradication.
+ I used to do typedef struct {} toto_t; and then handle *toto_t.
+ Arnaud (and Oli) didn't like it, and I surrendered. Now, you have:
+ - ???_t is a valid type (builded with typedef)
+ - s_toto_t is a structure (access to fields with .)
+ - s_toto is a structure needing 'struct' keyword to be used
+ - e_toto_t is an enum
+ - toto_t is an 'object' (struct*)
+ Exemple:
+ typedef struct s_toto {} s_toto_t, *toto_t;
+ typedef enum {} e_toto_t;
+ Moreover, only toto_t (and e_toto_t) are public. The rest (mainly
+ s_toto_t) is private.
+
+ - While I was at it, all gras_<obj>_free() functions want a gras_<obj>_t*
+ so that it can set the variable to NULL. It was so for dicts and sets,
+ it changed for dynars.
+
+ - Fix a bunch of memleaks in dict_remove
+ - Fix a bug in sg/server_socket opening: it failed all the time.
+
+2004-10-07 Martin Quinson
+ - Speed up dynar lookup operation a bit.
+
+ gras_dynar_get is dead.
+
+ Now, you can choose between gras_dynar_get_cpy (the old gras_dynar_get
+ but should be avoided for efficiency reasons) and gras_dynar_get_ptr
+ (which gives you the address of the stored data).
+
+ gras_dynar_get_as is an helpful macro which allows you to retrieve a
+ copy of the data using an affectation to do the job and not a memcpy.
+
+ int toto = gras_dynar_get_as(dyn,0,int); rewrites itself to
+ int toto = *(int*)gras_dynar_get_ptr(dyn,0);
+
+ It does not really speedup the dynar test because they are
+ setting elements all the time (and look them seldom). But the dict does
+ far more lookup than setting.
+
+ So, this brings the dict_crash test from ~33s to ~25s (200000 elms).
+
+2004-10-05 Martin Quinson
+ - Allow to (en/dis)able the cycle detection at run time.
+
+ Whether we should check for cycle or not is now a property of each
+ datatype. When you think there may be some cycle, use datadesc_cycle_set.
+ datadesc_cycle_unset allow to remove this property when previously set.
+
+ Note that the cycle detection is off by default since it impacts the
+ performance. Watch the data you feed GRAS with ;)
+
+ This property is hereditary. Any element embeeded in a structure having it
+ set have it set for the time of this data exchange.
+
+ You should set it both on sender and receiver side. If you don't set it on
+ sender side, it will enter an endless loop. If you forget on receiver
+ side, the cycles won't be recreated after communication.
+
+ - Header reorganization.
+ Kill gras_private.h, each submodule must load the headers it needs.
+
+2004-10-04 Martin Quinson
+ - Interface revolution: do not try to survive to malloc failure.
+
+ Now, gras_malloc and friends call gras_abort() on failure.
+ As a conclusion, malloc_error is not a valid error anymore, and all
+ functions for which it was the only gras_error_t return value are
+ changed. They now return void, or there result directly.
+ This simplify the API a lot.
+
+2004-09-29 Martin Quinson
+ - Re-enable raw sockets.
+ Created by gras_socket_{client,server}_ext;
+ Used with gras_raw_{send,recv}
+ No select possible.
+
+ It should allow to kill the last bits of gras first version soon.
+
+ This is not completely satisfactory yet (dupplicate code with
+ chunk_{send,recv}; a bit out of the plugin mecanism), but it should
+ work.
+
+ - Simplify transport plugin (internal) interface by not passing any
+ argument to _server and _client, but embeeding them in the socket
+ struct directly.
+
+2004-09-28 Martin Quinson
+ - Finish the port to AIX.
+ autoconf was my problem (segfault within the malloc replacement
+ function. No idea why)
+
+2004-09-16 Martin Quinson
+ - Fix some size_t madness on 64bit architectures.
+
+2004-09-08 Martin Quinson
+ - Reduce the number of system headers loaded, overload some more system
+ calls (such as malloc to cast the result of the system one, and work
+ properly on AIX)
+ - Fix and reintroduce the config support
+
+2004-09-07 Martin Quinson
+ - Source code reorganization to allow Arnaud to surf all over there.
+ - Allow to document the logging categories.
+ - Remove all uppercase from logging categories and useless cleanup in names.
+
+2004-08-18 Martin Quinson
+ Version 0.6.2 (protocol not changed; API changed)
+ - Interface cleanup: gras_msgtype_by_name returns the type (instead of a
+ gras_error_t), and NULL when not found. Functions expecting a msgtype
+ as argument (msg_wait; msg_send) deal with NULL argument by providing a
+ hopefully usefull message.
+ - Portability to prehistoric sparcs again
+
+2004-08-17 Martin Quinson
+ Version 0.6.1 (protocol not changed; ABI not changed)
+ - prealloc some buffers to speed things up
+
+2004-08-11 Martin Quinson
+ Version 0.6 (protocol not changed; ABI expended)
+ - The parsing macro can deal with the references, provided that you add
+ the relevant annotations (using GRAS_ANNOTE(size,field_name))
+
+2004-08-09 Martin Quinson
+ Version 0.5 (protocol not changed; ABI changed)
+ - Allow to off turn the cycle detection code in data exchange at
+ compilation time. It should be at run time, but I'm short of time (and
+ the config stuff is still broken). That way, we keep dict out of the
+ critical path, which is good because the performance is poor:
+ - search not dichotomial yet
+ - dynar give no way to access their content and memcpy everytime
+ - In composed data description (struct, ref and so on), stop foolness of
+ keeping the subtype's ID, but store the type itself. This keeps sets out
+ of the critical path, which is good since they rely on dynar and
+ dictionnaries. The only loose of that is that we cannot detect the
+ redeclaration of a structure/union with another content (but I'm not sure
+ the code detected well this error before anyway). We still can detect
+ the redefinition discrepancy for the other types.
+ - Use a whole bunch of optimisation flags (plus -fno-strict-aliasing since
+ it breaks the code because of type-punning used all over the place).
+ This breaks on all non-gcc architectures (for now).
+
+ All those changes (plus the buffer of last time) allow me to gain 2 order
+ of magnitude on cruel tests consisting of 800000 array of integers on two
+ level of a hierarchical structure (200 secondes -> 4 secondes)
+
+ API change:
+ - the selector of reference must now return the type it points to, not
+ the ID of this type.
+
+2004-08-06 Martin Quinson
+ Version 0.4 (protocol changed; ABI not changed)
+ - Allow to pass --gras-log argument to processes in simulation mode. Really.
+ - New debugging level: trace (under debug) to see effect of GRAS_IN/OUT
+ - Implement a buffer transport, and use it by default (it relies on tcp in
+ real life and on sg in simulation).
+ That's a bit hackish since I had a new field to the structure to store
+ its data without interfering with the subtype ones. Inheritance
+ is tricky in C. And that's a kind of reverse inheritance with one class
+ derivating two classes. Or maybe a game with java interfaces. Anyway,
+ that's damn hard in C (at least).
+ Moreover, I got tired while trying to ensure plugin separation and
+ genericity in SG mode. MSG wants me to do weird things, so let's go for
+ cruel hacks (temporarily of course ;).
+ See comment in transport_private.h:71
+ - do not include all the _interface headers in private but in the files
+ which really need them (to cut the compilation time when they are
+ modified)
+
+2004-07-26 Martin Quinson
+ Version 0.3 (protocol not changed; ABI changed)
+ - Major overhault of the datadesc interface to simplify it:
+ - shorted the function names:
+ s/gras_datadesc_declare_struct/gras_datadesc_struct/ and so on
+ - add a trivial way to push/pop integers into the cbps without malloc.
+ This allows to make really generic sub_type description, which simply
+ pop their size of the stack.
+ - add a function gras_datadesc_ref_pop_arr() which does what users want
+ most of the time: Declare a dynamic array (which pops its size of the
+ stack) and declare a reference to it. Poor name, but anyway.
+ - kill the post-send callback, add a post-receive one
+
+2004-07-23 Martin Quinson
+ Version 0.2 (protocol changed; ABI changed)
+ - add some testing for cpbs in the test cases, and fix some more bugs.
+ This invalidate again the little64 data file, since I cannot regenerate
+ it myself.
+ - remove an awfull optimization in the logging stuff, allowing me to:
+ - understand it again
+ - learn gcc how to check that the argument match the provided format
+ - fix all errors revealed by gcc after that
+ - internal keys of dict are not \0 terminated. Deal with it properly in
+ loggings instead of segfaulting when the user want to see the logs :-/
+
+2004-07-22 Martin Quinson
+ - Fix some stupid bug preventing cbps (callback postit) from working
+
2004-07-21 Martin Quinson
- Version 0.1.2
- Some documentation cleanups
- remove the useless last argument of msgtype_declare
- rename the Virtu functions to fit into the 'os' namespace
+ - move headers src/include -> src/include/gras/ and stop fooling with
+ gras -> . symbolic link
+ - make distcheck is now successful
2004-07-19 Martin Quinson
Version 0.1.1
