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399 commits

Author SHA1 Message Date
Subv
ddfabf3133 Kernel: Use a Session object to keep track of the status of a Client/Server session pair. 
Reduce the associated port's connection count when a ServerSession is destroyed.
 2017-05-15 11:22:15 -05:00
wwylele
85ba60d5ec Timer: restore missing signaled=true from #2421 2017-02-27 22:49:46 +02:00
B3n30
dcf115778a Fix log entry in timer::signal (#2600) 2017-02-27 11:04:03 -05:00
Mat M
0cb52ee74a Doxygen: Amend minor issues (#2593) 
Corrects a few issues with regards to Doxygen documentation, for example:

- Incorrect parameter referencing.
- Missing @param tags.
- Typos in @param tags.

and a few minor other issues.
 2017-02-26 17:58:51 -08:00
Yuri Kunde Schlesner
b250ce21b9 Merge pull request #2587 from yuriks/status-bar 
Replace built-in Profiler with indicators in status bar
 2017-02-26 17:51:15 -08:00
Yuri Kunde Schlesner
441f8b5a4b Core: Remove unnecessary include in thread.h 2017-02-26 17:22:01 -08:00
Subv
029a11030e Timers: Immediately signal the timer if it was started with an initial value of 0. 2017-02-21 20:51:54 -05:00
Subv
1ddff14511 Threads: Check the process' resource limit for the max allowed priority when creating a thread and remove the priority clamping code. 2017-01-11 16:38:05 -05:00
Subv
f2f2572fed Thread: Added priority range checking to svcSetThreadPriority and removed priority clamping code from Thread::SetPriority. 2017-01-11 16:38:04 -05:00
bunnei
84d72fd92f Merge pull request #2397 from Subv/pulse 
Kernel: Implemented Pulse event and timers.
 2017-01-10 10:45:00 -05:00
bunnei
b5eac78b43 Merge pull request #2410 from Subv/sleepthread 
Don't yield execution in SleepThread(0) if there are no available threads to run
 2017-01-06 22:01:33 -05:00
bunnei
59f4f1d7ff Merge pull request #2396 from Subv/sema_acquire 
Kernel/Semaphore: Fixed a regression in semaphore waits.
 2017-01-06 22:00:12 -05:00
bunnei
1c792389e6 Merge pull request #2408 from Subv/priority_boosting 
Kernel: Removed the priority boost code for starved threads.
 2017-01-06 00:40:39 -05:00
Subv
fc2266130b Kernel: Don't attempt to yield execution in SleepThread(0) if there are no available threads to run. 
With this we avoid an useless temporary deschedule of the current thread.
 2017-01-05 19:11:34 -05:00
Subv
5e2a8ebabf Kernel: Remove some unused functions. 2017-01-05 13:17:06 -05:00
Subv
933df2606a Kernel: Removed the priority boost code for starved threads. 
After hwtesting and reverse engineering the kernel, it was found that the CTROS scheduler performs no priority boosting for threads like this, although some other forms of scheduling priority-starved threads might take place.

For example, it was found that hardware interrupts might cause low-priority threads to run if the CPU is preempted in the middle of an SVC handler that deschedules the current (high priority) thread before scheduling it again.
 2017-01-05 13:12:39 -05:00
Subv
e52ca85711 Kernel: Implemented Pulse event and timers. 
Closes #1904
 2017-01-05 13:06:17 -05:00
Subv
4251eb26ec Kernel/Semaphore: Fixed a regression in semaphore waits. 
The regression was caused by a missing check in #2260.

The new behavior is consistent with the real kernel.
 2017-01-05 13:00:05 -05:00
Subv
dda4ec93be Kernel: Add some asserts to enforce the invariants in the scheduler. 2017-01-05 09:40:18 -05:00
Subv
7f1dca8cd2 Kernel: Remove a thread from all of its waiting objects' waiting_threads list when it is awoken. 
This fixes a potential bug where threads would not get removed from said list if they awoke after waiting with WaitSynchronizationN with wait_all = false
 2017-01-05 09:40:15 -05:00
Subv
fd95b6ee26 Kernel: Remove Thread::wait_objects_index and use wait_objects to hold all the objects that a thread is waiting on. 2017-01-05 09:40:14 -05:00
Subv
cef5f45de2 Kernel: Use different thread statuses when a thread calls WaitSynchronization1 and WaitSynchronizationN with wait_all = true. 
This commit removes the overly general THREADSTATUS_WAIT_SYNCH and replaces it with two more granular statuses:

THREADSTATUS_WAIT_SYNCH_ANY when a thread waits on objects via WaitSynchronization1 or WaitSynchronizationN with wait_all = false.

THREADSTATUS_WAIT_SYNCH_ALL when a thread waits on objects via WaitSynchronizationN with wait_all = true.
 2017-01-04 15:58:50 -05:00
Subv
d3ff5b91e1 Kernel/Mutex: Propagate thread priority changes to other threads inheriting the priority via mutexes 2017-01-04 15:58:48 -05:00
Subv
b6a0355568 Kernel/Mutex: Update a mutex priority when a thread stops waiting on it. 2017-01-04 15:58:47 -05:00
Subv
7abf185390 Kernel/Mutex: Implemented priority inheritance. 
The implementation is based on reverse engineering of the 3DS's kernel.

A mutex holder's priority will be temporarily boosted to the best priority among any threads that want to acquire any of its held mutexes.
When the holder releases the mutex, it's priority will be boosted to the best priority among the threads that want to acquire any of its remaining held mutexes.
 2017-01-04 15:58:46 -05:00
Subv
e6a7723f2f Kernel: Object ShouldWait and Acquire calls now take a thread as a parameter. 
This will be useful when implementing mutex priority inheritance.
 2017-01-04 15:58:45 -05:00
Subv
38a90882a4 Kernel/Synch: Do not attempt a reschedule on every syscall. 
Not all syscalls should cause reschedules, this commit attempts to remedy that, however, it still does not cover all cases.
 2017-01-04 15:58:44 -05:00
bunnei
8b1e269e58 ThreadContext: Move from "core" to "arm_interface". 2016-12-22 00:27:49 -05:00
bunnei
e26fbfd1d7 core: Replace "AppCore" nomenclature with just "CPU". 2016-12-22 00:27:46 -05:00
bunnei
4fc8b8229e core: Remove HLE module, consolidate code & various cleanups. 2016-12-21 23:48:13 -05:00
bunnei
232ef55c1a core: Consolidate core and system state, remove system module & cleanups. 2016-12-21 23:29:13 -05:00
wwylele
5728e42634 Thread: remove the thread from the thread list when exiting 2016-12-17 19:23:52 +02:00
wwylele
4c9b80cee3 Kernel: remove object's waiting thread if it is dead 2016-12-16 12:33:18 +02:00
bunnei
cda7210fad Merge pull request #2260 from Subv/scheduling 
Threading: Reworked the way our scheduler works.
 2016-12-16 00:41:22 -05:00
Subv
016307ae65 Fixed the codestyle to match our clang-format rules. 2016-12-14 12:45:36 -05:00
Subv
5b1edc6ae7 Fixed the codestyle to match our clang-format rules. 2016-12-14 12:35:01 -05:00
Subv
406907d570 Properly remove a thread from its wait_objects' waitlist when it is awoken by a timeout. 2016-12-10 13:29:31 -05:00
Subv
ebbb55ec8f Moved the HLE command buffer translation task to ServerSession instead of the HLE handler superclass. 2016-12-09 12:52:12 -05:00
Subv
17b29d8865 WaitSynch: Removed unused variables and reduced SharedPtr copies. 
Define a variable with the value of the sync timeout error code.

Use a boost::flat_map instead of an unordered_map to hold the equivalence of objects and wait indices in a WaitSynchN call.
 2016-12-09 12:23:09 -05:00
Subv
386112da32 Added a framework for partially handling Session disconnections. 
Further implementation will happen in a future commit.

Fixes a regression.
 2016-12-08 15:01:10 -05:00
Subv
f9bcf89510 Use std::move where appropriate. 2016-12-08 11:06:19 -05:00
Subv
7cde5b83bc Use boost remove_erase_if instead of the erase-remove idiom 2016-12-06 19:31:53 -05:00
Subv
1f286b72a1 Improved the algorithm for GetHighestPriorityReadyThread. 2016-12-06 19:15:32 -05:00
Subv
c93c5a72bb Return an error code when connecting to a saturated port. 
The error code was taken from the 3DS kernel.
 2016-12-05 13:59:57 -05:00
Subv
00f0c77570 Split SessionRequestHandler::HandleSyncRequest into HandleSyncRequest, TranslateRequest and HandleSyncRequestImpl. 
HandleSyncRequest now takes care of calling the command buffer translate function before actually invoking the command handler for HLE services.
 2016-12-05 12:05:00 -05:00
Subv
29d809b6e1 Kernel: Remove the Redirection handle type. 2016-12-05 11:13:22 -05:00
Subv
dd8887c8cf KServerPorts now have an HLE handler "template", which is inherited by all ServerSessions created from it. 2016-12-05 11:02:08 -05:00
Subv
bdad00c73f Threading: Added some utility functions and const correctness. 2016-12-04 09:58:36 -05:00
Subv
8634b8cb83 Threading: Reworked the way our scheduler works. 
Threads will now be awakened when the objects they're waiting on are signaled, instead of repeating the WaitSynchronization call every now and then.

The scheduler is now called once after every SVC call, and once after a thread is awakened from sleep by its timeout callback.

This new implementation is based off reverse-engineering of the real kernel.

See https://gist.github.com/Subv/02f29bd9f1e5deb7aceea1e8f019c8f4 for a more detailed description of how the real kernel handles rescheduling.
 2016-12-03 22:38:14 -05:00
Subv
2ce61344d6 Declare empty ServerSession and ClientSession constructors as default. 2016-12-02 22:58:02 -05:00