66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
// Public nt-lite DDK system-thread declarations.
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#pragma once
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#include <stdint.h>
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#include <ntlite/status.h>
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typedef struct THREAD THREAD;
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#ifndef NTL_THREAD_PRIORITY_DEFINED
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typedef enum THREAD_PRIORITY {
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PriorityLow = 0,
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PriorityNormal = 1,
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PriorityHigh = 2,
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PriorityCount = 3,
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} THREAD_PRIORITY;
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#define NTL_THREAD_PRIORITY_DEFINED 1
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#endif
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// Selects dynamic normal scheduling or static real-time scheduling.
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typedef enum KE_SCHEDULING_CLASS {
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KeSchedulingNormal = 0,
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KeSchedulingRealtime = 1,
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KeSchedulingClassCount = 2,
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} KE_SCHEDULING_CLASS;
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// Higher real-time values outrank lower values. Real-time threads always
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// outrank normal threads and round-robin with equal-priority peers.
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#define KE_REALTIME_PRIORITY_MIN 0u
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#define KE_REALTIME_PRIORITY_MAX 31u
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#define KE_REALTIME_PRIORITY_COUNT 32u
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// Creates a thread without placing it on a scheduler ready queue. The caller
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// must retain the returned THREAD reference and call KeResumeThread().
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#define KE_THREAD_CREATE_FLAG_SUSPENDED 0x00000001u
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// Describes initial scheduling, execution state, and affinity for one new
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// thread. Zero affinity selects the kernel default rather than an empty CPU
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// set.
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typedef struct KE_THREAD_CREATE_PARAMETERS {
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KE_SCHEDULING_CLASS SchedulingClass;
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uint32_t Priority;
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uint32_t Flags;
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uint64_t AffinityMask;
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} KE_THREAD_CREATE_PARAMETERS;
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#define KE_THREAD_CREATE_NORMAL(priorityValue) \
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{ KeSchedulingNormal, (uint32_t)(priorityValue), 0u, 0ULL }
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#define KE_THREAD_CREATE_REALTIME(priorityValue) \
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{ KeSchedulingRealtime, (uint32_t)(priorityValue), 0u, 0ULL }
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// Creates a system-process kernel thread with explicit scheduling parameters.
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__declspec(dllexport) KSTATUS KeCreateKernelThread(uintptr_t fn,
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uintptr_t arg,
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const KE_THREAD_CREATE_PARAMETERS* parameters,
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THREAD** out);
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// Decrements one thread's suspend count and queues it when the count reaches
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// zero. previousSuspendCountOut may be NULL.
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__declspec(dllexport) KSTATUS KeResumeThread(THREAD* thread,
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uint32_t* previousSuspendCountOut);
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// Yields the current processor to another runnable thread.
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__declspec(dllexport) void KeYield(void);
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