| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 2572 |
6097 d 18 h |
jermar |
/trunk/kernel/ |
Remove duplicit implementation of strlen() in kernel, rename is_digit(),
is_white() and co. to their standard names (e.g. isdigit(), isspace()) and
remove duplicit implementation of isdigit(). Fix cstyle in kernel printf()
implementation. |
|
| 2571 |
6098 d 8 h |
jermar |
/trunk/kernel/generic/src/printf/ |
Fix the string printing precision bug also in the kernel. |
|
| 2557 |
6103 d 11 h |
jermar |
/trunk/kernel/generic/src/ipc/ |
Enable forwarding of IPC_M_AS_AREA_SEND, IPC_M_AS_AREA_RECV, IPC_M_DATA_SEND
calls. In order to prevent the forwarder from cloberring the call data (i.e.
source and destination address, and size) by treating these three methods as
immutable on forward. This feature is experimental, but has huge benefits in
that it can significantly reduce the amount of data sharing (the middle man need
not modify its address space mappings) or the amount of data copying (the middle
man need not receive the data from the sender and then resend them to the next
recipient). As a result, it can reduce N such calls for a communication channel
with N tasks along the way to 1 such call. |
|
| 2556 |
6103 d 12 h |
jermar |
/trunk/kernel/generic/ |
Rename as_get_size() to as_area_get_size() and add a doxygen comment. |
|
| 2504 |
6165 d 4 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 |
6165 d 5 h |
jermar |
/trunk/kernel/generic/src/adt/ |
Get rid of code duplicities in the insert path into an AVL tree. |
|
| 2502 |
6165 d 10 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 |
6165 d 10 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 |
6165 d 12 h |
jermar |
/trunk/kernel/ |
Import the AVL tree implementation from the RCU branch. |
|
| 2494 |
6183 d 3 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. |
|
| 2487 |
6192 d 5 h |
jermar |
/trunk/kernel/generic/src/proc/ |
Kernel stack address was printed twice. |
|
| 2472 |
6207 d 4 h |
jermar |
/trunk/kernel/generic/src/ipc/ |
Some left-over stuff from the last commit (IPC cleanup and improved
comments.) |
|
| 2471 |
6207 d 4 h |
jermar |
/trunk/ |
Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-) |
|
| 2470 |
6211 d 2 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 |
6211 d 6 h |
jermar |
/trunk/ |
Improve comments for arch-specific implementations of hierarchical
4-level page tables. Improve formatting. |
|
| 2465 |
6216 d 8 h |
jermar |
/trunk/ |
Merge arm32 into trunk. |
|
| 2462 |
6218 d 3 h |
jermar |
/trunk/kernel/ |
Replace gcc-specific __FUNCTION__ with C99 __func__.
suncc's xregs=no%float can be used only on sparc64. |
|
| 2451 |
6220 d 4 h |
jermar |
/trunk/kernel/generic/ |
JoinMe -> Lingering |
|
| 2447 |
6223 d 8 h |
jermar |
/trunk/kernel/generic/src/main/ |
Split accidently joined lines. |
|
| 2446 |
6223 d 8 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. |
|