TermiNexus
85f67b5558
二者在 Windows 头文件里都是"单个 PVOID 的结构"（sizeof 8），API 收的是**存储地址**。 原先声明成 VOIDPTR（i8*）⇒ `c.Addr(self.cond_var)` 得到 i8**（多一层），与形参 i8* 层数 不符（指针隐式转换收紧后报 CastError，现场 includes/condition.vp:27）。 - win32sync.vp：新增 class SRWLOCK / class CONDITION_VARIABLE（Ptr: VOIDPTR，8 字节）； 5 个 SRWLock extern 与 5 个条件变量 extern 的形参由 VOIDPTR 改为对应结构体指针 - condition.vp：cond_var 由 VOIDPTR 改为 CONDITION_VARIABLE - rwlock.vp：lock 由 VOIDPTR 改为 SRWLOCK 布局与运行期语义均不变（都是 8 字节、对齐 8，传的仍是那块存储的地址）。
54 lines
1.4 KiB
Plaintext
54 lines
1.4 KiB
Plaintext
import t, c
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from stdint import *
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from w32.win32base import *
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from w32.win32sync import (
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CRITICAL_SECTION,
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CONDITION_VARIABLE,
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InitializeCriticalSection, EnterCriticalSection, LeaveCriticalSection, DeleteCriticalSection,
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InitializeConditionVariable, SleepConditionVariableCS,
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WakeConditionVariable, WakeAllConditionVariable
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)
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class Condition:
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"""Windows condition variable backed primitive, internally bundled with CRITICAL_SECTION.
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Usage:
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cond: Condition = Condition()
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with cond:
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while not ready:
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cond.wait()
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cond.notify()
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"""
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cond_var: CONDITION_VARIABLE
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cs: CRITICAL_SECTION
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def __init__(self):
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InitializeCriticalSection(c.Addr(self.cs))
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InitializeConditionVariable(c.Addr(self.cond_var))
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def wait(self, timeout_ms: ULONG = INFINITE) -> BOOL:
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return SleepConditionVariableCS(c.Addr(self.cond_var), c.Addr(self.cs), timeout_ms)
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def notify(self):
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WakeConditionVariable(c.Addr(self.cond_var))
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def notify_all(self):
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WakeAllConditionVariable(c.Addr(self.cond_var))
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def acquire(self):
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EnterCriticalSection(c.Addr(self.cs))
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def release(self):
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LeaveCriticalSection(c.Addr(self.cs))
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def __enter__(self) -> 'Condition' | t.CPtr:
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self.acquire()
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return self
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def __exit__(self):
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self.release()
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def delete(self):
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DeleteCriticalSection(c.Addr(self.cs))
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