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KeWaitForMultipleObjects.

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This commit is contained in:
Ben Vanik
2014-01-05 01:49:10 -08:00
parent 372fd97821
commit bb41ab717b
3 changed files with 82 additions and 17 deletions
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55
src/xenia/kernel/xobject.cc
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@@ -70,6 +70,22 @@ X_STATUS XObject::Delete() {
return shared_kernel_state_->object_table()->RemoveHandle(handle_);
}
namespace {
uint32_t ConvertTimeoutTicks(int64_t timeout_ticks) {
if (timeout_ticks > 0) {
// Absolute time, based on January 1, 1601.
// TODO(benvanik): convert time to relative time.
XEASSERTALWAYS();
return 0;
} else if (timeout_ticks < 0) {
// Relative time.
return (uint32_t)(-timeout_ticks / 10000); // Ticks -> MS
} else {
return 0;
}
}
}
X_STATUS XObject::Wait(uint32_t wait_reason, uint32_t processor_mode,
uint32_t alertable, uint64_t* opt_timeout) {
void* wait_handle = GetWaitHandle();
@@ -78,23 +94,8 @@ X_STATUS XObject::Wait(uint32_t wait_reason, uint32_t processor_mode,
return X_STATUS_SUCCESS;
}
DWORD timeout_ms;
if (opt_timeout) {
int64_t timeout_ticks = (int64_t)(*opt_timeout);
if (timeout_ticks > 0) {
// Absolute time, based on January 1, 1601.
// TODO(benvanik): convert time to relative time.
XEASSERTALWAYS();
timeout_ms = 0;
} else if (timeout_ticks < 0) {
// Relative time.
timeout_ms = (DWORD)(-timeout_ticks / 10000); // Ticks -> MS
} else {
timeout_ms = 0;
}
} else {
timeout_ms = INFINITE;
}
DWORD timeout_ms = opt_timeout ?
ConvertTimeoutTicks(*opt_timeout) : INFINITE;
DWORD result = WaitForSingleObjectEx(wait_handle, timeout_ms, alertable);
switch (result) {
@@ -112,6 +113,26 @@ X_STATUS XObject::Wait(uint32_t wait_reason, uint32_t processor_mode,
}
}
X_STATUS XObject::WaitMultiple(
uint32_t count, XObject** objects,
uint32_t wait_type, uint32_t wait_reason, uint32_t processor_mode,
uint32_t alertable, uint64_t* opt_timeout) {
void** wait_handles = (void**)alloca(sizeof(void*) * count);
for (uint32_t n = 0; n < count; n++) {
wait_handles[n] = objects[n]->GetWaitHandle();
XEASSERTNOTNULL(wait_handles[n]);
}
DWORD timeout_ms = opt_timeout ?
ConvertTimeoutTicks(*opt_timeout) : INFINITE;
DWORD result = WaitForMultipleObjectsEx(
count, wait_handles,
wait_type ? TRUE : FALSE, timeout_ms, alertable);
return result;
}
void XObject::LockType() {
xe_mutex_lock(shared_kernel_state_->object_mutex_);
}