103 lines
2.7 KiB
Plaintext
103 lines
2.7 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.win32process import CreateThread, GetExitCodeThread, GetCurrentThreadId, TlsAlloc, TlsFree, TlsGetValue, TlsSetValue
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from w32.win32sync import WaitForSingleObject
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# All lock classes are imported, and users can also import them as needed.
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from lock import Lock
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from event import Event
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from condition import Condition
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from rwlock import RWLock
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class Thread:
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"""Thread class, wraps Windows CreateThread.
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Thread callback signature: def thread_func(arg: t.CPtr) -> t.CPtr
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Note: Windows API limits the return value to DWORD (32-bit), so 64-bit pointers will be truncated.
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If you need to return a 64-bit result, pass it via the arg parameter struct.
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Usage:
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def worker(arg: t.CPtr) -> t.CPtr:
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# thread logic
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return NULL
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t: Thread = Thread(worker, arg_ptr)
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t.start()
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t.join()
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"""
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handle: HANDLE
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thread_id: ULONG
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target: VOIDPTR
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arg: VOIDPTR
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started: BOOL
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def __init__(self, target: VOIDPTR, arg: VOIDPTR = NULL):
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self.handle = NULL
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self.thread_id = 0
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self.target = target
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self.arg = arg
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self.started = FALSE
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def start(self):
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if self.started:
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return
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self.handle = CreateThread(NULL, 0, self.target, self.arg, 0, c.Addr(self.thread_id))
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self.started = TRUE
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def join(self, timeout_ms: ULONG = INFINITE) -> BOOL:
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if not self.started:
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return FALSE
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result: ULONG = WaitForSingleObject(self.handle, timeout_ms)
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return result == WAIT_OBJECT_0
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def is_alive(self) -> BOOL:
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if not self.started:
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return FALSE
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result: ULONG = WaitForSingleObject(self.handle, 0)
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return result == WAIT_TIMEOUT
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def get_exit_code(self) -> ULONG:
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code: ULONG = 0
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GetExitCodeThread(self.handle, c.Addr(code))
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return code
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def close(self):
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if self.handle != NULL:
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CloseHandle(self.handle)
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self.handle = NULL
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class local:
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"""TLS (Thread Local Storage) encapsulation.
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Usage:
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tls: local = local()
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tls.set(value_ptr)
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val: t.CPtr = tls.get()
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"""
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index: ULONG
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def __init__(self):
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self.index = TlsAlloc()
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def get(self) -> VOIDPTR:
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return TlsGetValue(self.index)
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def set(self, value: VOIDPTR) -> BOOL:
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return TlsSetValue(self.index, value)
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def free(self) -> BOOL:
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return TlsFree(self.index)
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def get_current_thread_id() -> ULONG:
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"""Get current thread ID"""
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return GetCurrentThreadId()
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def sleep_ms(ms: ULONG):
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"""Make the current thread sleep for a specified number of milliseconds"""
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Sleep(ms)
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