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Rev Age Author Path Log message Diff
2504 6308 d 22 h jermar /trunk/kernel/generic/ Give the AVL tree walkers the possibility to take an argument.
Each walker is now supposed to return a bool value to support walk termination.

Switch over from the tasks_btree B+tree to tasks_tree AVL tree.
This makes the fix for ticket #48 complete.		  
2503 6308 d 23 h jermar /trunk/kernel/generic/src/adt/ Get rid of code duplicities in the insert path into an AVL tree.  
2502 6309 d 4 h jermar /trunk/kernel/generic/ Replace the threads_btree B+tree with an AVL tree. The new variable is called
threads_tree. For printing list of threads, use the new AVL tree walker
mechanism.

This solves half of ticket #48.		  
2501 6309 d 4 h jermar /trunk/kernel/generic/ Add explicit type for an AVL tree key.
Add function to walk an AVL tree using a supplied walker.		  
2499 6309 d 6 h jermar /trunk/kernel/ Import the AVL tree implementation from the RCU branch.  
2494 6326 d 21 h jermar /trunk/kernel/generic/ Implement a new mechanism for copying data between two address spaces based on
IPC. New system method IPC_M_DATA_SEND is introduced. The implementation is
generic and does not make use of any possible architecture optimizations such as
direct copy from one address space to another.		  
2493 6327 d 1 h jermar /trunk/kernel/generic/include/ipc/ Collapse IPC method numbers.  
2487 6335 d 23 h jermar /trunk/kernel/generic/src/proc/ Kernel stack address was printed twice.  
2476 6347 d 21 h jermar /trunk/ Cleanup.  
2472 6350 d 22 h jermar /trunk/kernel/generic/src/ipc/ Some left-over stuff from the last commit (IPC cleanup and improved
comments.)		  
2471 6350 d 22 h jermar /trunk/ Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-)		  
2470 6354 d 20 h jermar /trunk/ Fix a double-free recently introduced in revision r2436.
Add a comment clarifying the life-cycle of the kernel_uarg structure.

Comment out the freeing of userspace thread stack while still running on it.
This should be fixed by implementing userspace version of thread_join().		  
2467 6355 d 0 h jermar /trunk/ Improve comments for arch-specific implementations of hierarchical
4-level page tables. Improve formatting.		  
2465 6360 d 2 h jermar /trunk/ Merge arm32 into trunk.  
2462 6361 d 21 h jermar /trunk/kernel/ Replace gcc-specific __FUNCTION__ with C99 __func__.
suncc's xregs=no%float can be used only on sparc64.		  
2451 6363 d 22 h jermar /trunk/kernel/generic/ JoinMe -> Lingering  
2447 6367 d 2 h jermar /trunk/kernel/generic/src/main/ Split accidently joined lines.  
2446 6367 d 2 h jermar /trunk/kernel/generic/ More efficient and simpler task termination.

Based on the assumption, that after its creation, only the task itself can create more threads for itself,
the last thread with userspace context to execute thread_exit() will perform futex and IPC cleanup. When
the task has no threads, it is destroyed. Both the cleanup and destruction is controlled by reference
counting.

As for userspace threads, even though there could be a global garbage collector for joining threads, it is
much simpler if the uinit thread detaches itself before switching to userspace.

task_kill() is now an idempotent operation. It just instructs the threads within a task to exit.

Change in the name of a thread state: Undead -> JoinMe.		  
2445 6367 d 3 h decky /trunk/ initial merge of branches/fs
(not finished, huge cleanup is needed)		  
2444 6367 d 18 h jermar /trunk/kernel/ First fixes for suncc support.
It is going to be a long way...		  

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