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Code Issues Releases Activity

- added enum ThreadProcessorId

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- reorganized some kernel thread functions
- added placeholder __KernelWaitThread_Synchronization function
This commit is contained in:
bunnei 2014-05-17 00:56:00 -04:00
parent 43bc2ac724
commit 14ae026386
2 changed files with 107 additions and 53 deletions
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141
src/core/hle/kernel/thread.cpp
View file

@ -21,20 +21,14 @@
// Enums
enum ThreadPriority {
THREADPRIO_HIGHEST = 0,
THREADPRIO_DEFAULT = 16,
THREADPRIO_LOWEST = 31,
};
enum ThreadStatus {
THREADSTATUS_RUNNING = 1,
THREADSTATUS_READY = 2,
THREADSTATUS_WAIT = 4,
THREADSTATUS_SUSPEND = 8,
THREADSTATUS_DORMANT = 16,
THREADSTATUS_DEAD = 32,
THREADSTATUS_WAITSUSPEND = THREADSTATUS_WAIT | THREADSTATUS_SUSPEND
THREADSTATUS_RUNNING = 1,
THREADSTATUS_READY = 2,
THREADSTATUS_WAIT = 4,
THREADSTATUS_SUSPEND = 8,
THREADSTATUS_DORMANT = 16,
THREADSTATUS_DEAD = 32,
THREADSTATUS_WAITSUSPEND = THREADSTATUS_WAIT | THREADSTATUS_SUSPEND
};
enum WaitType {
@ -46,8 +40,6 @@ enum WaitType {
WAITTYPE_VBLANK,
WAITTYPE_MUTEX,
WAITTYPE_SYNCH,
NUM_WAITTYPES
};
typedef s32 Handle;
@ -164,32 +156,6 @@ void __KernelResetThread(Thread *t, s32 lowest_priority) {
t->wait_type = WAITTYPE_NONE;
}
/// Creates a new thread
Thread *__KernelCreateThread(Handle &handle, const char *name, u32 entry_point, s32 priority,
s32 processor_id, u32 stack_top, int stack_size) {
static u32 _handle_count = 1;
Thread *t = new Thread;
handle = (_handle_count++);
g_thread_queue.push_back(handle);
g_thread_ready_queue.prepare(priority);
t->status = THREADSTATUS_DORMANT;
t->entry_point = entry_point;
t->stack_top = stack_top;
t->stack_size = stack_size;
t->initial_priority = t->current_priority = priority;
t->processor_id = processor_id;
t->wait_type = WAITTYPE_NONE;
strncpy(t->name, name, KERNEL_MAX_NAME_LENGTH);
t->name[KERNEL_MAX_NAME_LENGTH] = '\0';
return t;
}
/// Change a thread to "ready" state
void __KernelChangeReadyState(Thread *t, bool ready) {
Handle handle = t->GetHandle();
@ -222,6 +188,79 @@ void __KernelChangeThreadState(Thread *t, ThreadStatus new_status) {
}
}
/// Calls a thread by marking it as "ready" (note: will not actually execute until current thread yields)
void __KernelCallThread(Thread *t) {
// Stop waiting
if (t->wait_type != WAITTYPE_NONE) {
t->wait_type = WAITTYPE_NONE;
}
__KernelChangeThreadState(t, THREADSTATUS_READY);
}
/// Creates a new thread
Thread *__KernelCreateThread(Handle &handle, const char *name, u32 entry_point, s32 priority,
s32 processor_id, u32 stack_top, int stack_size) {
Thread *t = new Thread;
handle = g_kernel_objects.Create(t);
g_thread_queue.push_back(handle);
g_thread_ready_queue.prepare(priority);
t->status = THREADSTATUS_DORMANT;
t->entry_point = entry_point;
t->stack_top = stack_top;
t->stack_size = stack_size;
t->initial_priority = t->current_priority = priority;
t->processor_id = processor_id;
t->wait_type = WAITTYPE_NONE;
strncpy(t->name, name, KERNEL_MAX_NAME_LENGTH);
t->name[KERNEL_MAX_NAME_LENGTH] = '\0';
return t;
}
/// Creates a new thread - wrapper for external user
Handle __KernelCreateThread(const char *name, u32 entry_point, s32 priority, s32 processor_id,
u32 stack_top, int stack_size) {
if (name == NULL) {
ERROR_LOG(KERNEL, "__KernelCreateThread(): NULL name");
return -1;
}
if ((u32)stack_size < 0x200) {
ERROR_LOG(KERNEL, "__KernelCreateThread(name=%s): invalid stack_size=0x%08X", name,
stack_size);
return -1;
}
if (priority < THREADPRIO_HIGHEST || priority > THREADPRIO_LOWEST) {
s32 new_priority = CLAMP(priority, THREADPRIO_HIGHEST, THREADPRIO_LOWEST);
WARN_LOG(KERNEL, "__KernelCreateThread(name=%s): invalid priority=0x%08X, clamping to %08X",
name, priority, new_priority);
// TODO(bunnei): Clamping to a valid priority is not necessarily correct behavior... Confirm
// validity of this
priority = new_priority;
}
if (!Memory::GetPointer(entry_point)) {
ERROR_LOG(KERNEL, "__KernelCreateThread(name=%s): invalid entry %08x", name, entry_point);
return -1;
}
Handle handle;
Thread *t = __KernelCreateThread(handle, name, entry_point, priority, processor_id, stack_top,
stack_size);
HLE::EatCycles(32000);
// This won't schedule to the new thread, but it may to one woken from eating cycles.
// Technically, this should not eat all at once, and reschedule in the middle, but that's hard.
HLE::ReSchedule("thread created");
__KernelCallThread(t);
return handle;
}
/// Switches CPU context to that of the specified thread
void __KernelSwitchContext(Thread* t, const char *reason) {
Thread *cur = __GetCurrentThread();
@ -262,22 +301,13 @@ Thread *__KernelNextThread() {
return g_kernel_objects.GetFast<Thread>(next);
}
/// Calls a thread by marking it as "ready" (note: will not actually execute until current thread yields)
void __KernelCallThread(Thread *t) {
// Stop waiting
if (t->wait_type != WAITTYPE_NONE) {
t->wait_type = WAITTYPE_NONE;
}
__KernelChangeThreadState(t, THREADSTATUS_READY);
}
/// Sets up the primary application thread
Handle __KernelSetupMainThread(s32 priority, int stack_size) {
Handle handle;
// Initialize new "main" thread
Thread *t = __KernelCreateThread(handle, "main", Core::g_app_core->GetPC(), priority,
0xFFFFFFFE, Memory::SCRATCHPAD_VADDR_END, stack_size);
THREADPROCESSORID_0, Memory::SCRATCHPAD_VADDR_END, stack_size);
__KernelResetThread(t, 0);
@ -322,6 +352,15 @@ void __KernelReschedule(const char *reason) {
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////
/// Wait thread - on WaitSynchronization
void __KernelWaitThread_Synchronization() {
// TODO(bunnei): Just a placeholder function for now... FixMe
__KernelWaitCurThread(WAITTYPE_SYNCH, "waitSynchronization called");
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void __KernelThreadingInit() {
}

19
src/core/hle/kernel/thread.h
View file

@ -9,8 +9,20 @@
class Thread;
/// Creates a new thread
Thread *__KernelCreateThread(Handle &handle, const char *name, u32 entry_point, s32 priority,
enum ThreadPriority {
THREADPRIO_HIGHEST = 0,
THREADPRIO_DEFAULT = 16,
THREADPRIO_LOWEST = 31,
};
enum ThreadProcessorId {
THREADPROCESSORID_0 = 0xFFFFFFFE,
THREADPROCESSORID_1 = 0xFFFFFFFD,
THREADPROCESSORID_ALL = 0xFFFFFFFC,
};
/// Creates a new thread - wrapper for external user
Handle __KernelCreateThread(const char *name, u32 entry_point, s32 priority,
s32 processor_id, u32 stack_top, int stack_size=KERNEL_DEFAULT_STACK_SIZE);
/// Sets up the primary application thread
@ -18,3 +30,6 @@ Handle __KernelSetupMainThread(s32 priority, int stack_size=KERNEL_DEFAULT_STACK
void __KernelThreadingInit();
void __KernelThreadingShutdown();
/// Wait thread - on WaitSynchronization
void __KernelWaitThread_Synchronization();