-
-
-
-
************************************************
*** This file is a TODO. It is thus kinda ***
*** outdated. You know the story, right? ***
************************************************
-
-
-
###
-### Ongoing stuff
+### Urgent stuff:
###
-Document the fact that gras processes display the backtrace on sigusr and sigint
-Document host module
-
-/* FIXME: better place? */
-int vasprintf (char **ptr, const char *fmt, va_list ap);
-char *bprintf(const char*fmt, ...) _XBT_GNUC_PRINTF(1,2);
-
-
-gras_socket_close should be blocking until all the data sent have been
-received by the other side (implemented with an ACK mechanism).
+* Have a proper todo file
###
-### Planned
+### Ongoing stuff
###
-*
-* Infrastructure
-****************
-
-[build chain]
- * Check the gcc version on powerpc. We disabled -floop-optimize on powerpc,
- but versions above 3.4.0 should be ok.
- * check whether we have better than jmp_buf to implement exceptions, and
- use it (may need to generate a public .h, as glib does)
-
-*
-* XBT
-*****
+* Clean up CMake files
+ Non exhaustive list of subgoals:
+ - Use genuine cmake mechanisms and variables when available,
+ instead of reinventing the wheel.
+ - Correctly determine system and architecture (e.g. x32).
+ - Correctly determine compiler type and version (e.g. clang).
+ - Use git to generate the dist archive. Either use git-archive to
+ generate the tarball, or keep using cmake -E tar, but use git-ls-files
+ to get the list of files to pack.
-[errors/exception]
- * Better split casual errors from programming errors.
- The first ones should be reported to the user, the second should kill
- the program (or, yet better, only the msg handler)
- * Allows the use of an error handler depending on the current module (ie,
- the same philosophy as log4c using GSL's error functions)
+* Replace XBT with the C++ standard library
-[logs]
- * Hijack message from a given category to another for a while (to mask
- initializations, and more)
- * Allow each actor to have its own setting
- * more logging appenders (take those from Ralf in l2)
-
-[modules]
- * Add configuration and dependencies to our module definition
- * allow to load them at runtime
- check in erlang how they upgrade them without downtime
-
-[other modules]
- * we may need a round-robin database module, and a statistical one
- * Some of the datacontainer modules seem to overlap. Kill some of them?
+* Some XBT datacontainers seem to overlap. Kill some of them all.
- replace fifo with dynars
- replace set with SWAG
-
-*
-* GRAS
-******
-
-[doc]
- * implement the P2P protocols that macedon does. They constitute great
- examples, too
-
-[transport]
- * use poll(2) instead of select(2) when available. (first need to check
- the advantage of doing so ;)
-
- Another idea we spoke about was to simulate this feature with a bunch of
- threads blocked in a read(1) on each incoming socket. The latency is
- reduced by the cost of a syscall, but the more I think about it, the
- less I find the idea adapted to our context.
-
- * timeout the send/recv too (hard to do in RL)
- * Adaptative timeout
- * multiplex on incoming SOAP over HTTP (once datadesc can deal with it)
-
- * The module syntax/API is too complex.
- - Everybody opens a server socket (or almost), and nobody open two of
- them. This should be done automatically without user intervention.
- - I'd like to offer the possibility to speak to someone, not to speak on
- a socket. Users shouldn't care about such technical details.
- - the idea of host_cookie in NWS seem to match my needs, but we still
- need a proper name ;)
- - this would allow to exchange a "socket" between peer :)
- - the creation needs to identify the peer actor within the process
-
- * when a send failed because the socket was closed on the other side,
- try to reopen it seamlessly. Needs exceptions or another way to
- differentiate between the several system_error.
- * cache accepted sockets and close the old ones after a while.
- Depends on the previous item; difficult to achieve with firewalls
-
-[datadesc]
- * Add a XML wire protocol alongside to the binary one (for SOAP/HTTP)
- * cbps:
- - Error handling
- - Regression tests
- * Inter-arch conversions
- - Port to ARM
- - Convert in the same buffer when size increase
- - Exchange (on net) structures in one shoot when possible.
- * datadesc_set_cste: give the value by default when receiving.
- - It's not transfered anymore, which is good for functions pointer.
- * Parsing macro
- - Cleanup the code (bison?)
- - Factorize code in union/struct field adding
- - Handle typedefs (gras_datatype_copy can be usefull, but only if
- main type is already defined)
- - Handle unions with annotate
- - Handle enum
- - Handle long long and long double
- - Forbid "char", allow "signed char" and "unsigned char", or user code won't be
- portable to ARM, at least.
- - Handle struct/union/enum embeeded within another container
- (needs modifications in DataDesc, too)
-
- - Check short a, b;
- - Check short ***
- - Check struct { struct { int a } b; }
-
-[Messaging]
- * Other message types than oneway & RPC are possible:
- - forwarding request, group communication
- * Message priority
- * Message forwarding
- * Group communication
- * Message declarations in a tree manner (such as log channels)?
-
-[Other, more general issues]
- * watchdog in RL (ie, while (1) { fork; exec the child, wait in father })
- * Allow [homogeneous] dico to be sent
- * Make GRAS thread safe by mutexing what needs to be
-
-*
-* AMOK
-******
-
-[bandwidth]
- * add a version guessing the appropriate datasizes automatically
-[other modules]
- * log control, management, dynamic token ring
- * a way using SSH to ask a remote host to open a socket back on me
-
