X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ebfac0edb85c7b691b8c073e77bcb68f2b1fdda1..bdd17c447432a0a638682a1e301b990e401fa5f1:/ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 281a60aefb..e90432e99a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -6,20 +6,47 @@ S4U:
  - New function NetZone::add_route(host1, host2, links) when you don't need gateways
    Also add a variant with s4u::Link, when you don't want to specify the directions
    on symmetric routes.
- - Introduce a Mailbox::get_async() with no payload parameter. You can use the new 
+ - Introduce a Mailbox::get_async() with no payload parameter. You can use the new
    Comm::get_payload() once the communication is over to retrieve the payload.
+ - Implement recursive mutexes. Simply pass true to the constructor to get one.
+ - Introduce a new MessageQueue abstraction and associated Mess simulated object.
+   The behavior of a MessageQueue is similar to that of a Mailbox, but intended for
+   control messages that do not incur any simulated cost. Information is automagically
+   transported over thin air between producer and consumer. See examples/cpp/mess-wait
 
 SMPI:
  - New SMPI_app_instance_join(): wait for the completion of a started MPI instance
  - MPI_UNIVERSE_SIZE now initialized to the total amount of hosts in the platform
 
+sthread:
+ - Implement recursive pthreads.
+ - Many bug fixes.
+
 Python:
  - Make the host_load plugin available from Python. See examples/python/plugin-host-load
  - Mailbox::get_async() does not return a pair anymore. Use comm.get_payload() instead.
- - Comm::waitall() is gone. Please use ActivitySet() instead.
+ - Comm::waitall/waitany/testany() are gone. Please use ActivitySet() instead.
  - Comm::waitallfor() is gone too. Its semantic was unclear on timeout anyway.
  - Io::waitany() and waitanyfor() are gone. Please use ActivitySet() instead.
 
+C API:
+ - Introduce sg_activity_set_t and deprecate wait_all/wait_any/test_any for
+   Exec, Io and Comm.
+
+Plugins:
+ - Revamp the battery plugin: rewrite completely the API, for a better usability.
+   The examples were updated accordingly.
+ - Revamp of the Photovoltaic plugin: now called SolarPanel and complete rewrite of the API
+ - Add chiller plugin: enable the management of chillers consuming electrical energy
+   to compensate heat generated by hosts.
+
+Kernel:
+ - optimize an internal data structure (replace boost::circular_buffer_space_optimized by
+   std::deque to store pending and unmatched Comms in Mailboxes). It is actually a revert
+   to what was used a few years back. The boost structure had a lower memory footprint than
+   deques, but it appeared that their "space_optimized" character was generating a huge lot
+   of refcount changes on the stored Comms.
+
 ----------------------------------------------------------------------------
 
 SimGrid (3.34) June 26. 2023