Add KeDelayExecutionThread mock - #323
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Add a user-mode mock for KeDelayExecutionThread, the WDM primitive a kernel thread uses to delay its own execution for a relative or absolute interval. This API was not previously provided by usersim. - inc/usersim/ke.h: declare KeDelayExecutionThread with SAL matching the WDK wdm.h contract (_IRQL_requires_min_(PASSIVE_LEVEL), _IRQL_requires_max_(APC_LEVEL)). - src/ke.cpp: mock implementation. A negative Interval is a delay relative to the current time, converted from 100-ns units to milliseconds (rounded up) and passed to Sleep; a non-negative (absolute) Interval is not tracked by the mock and is treated as no delay. Returns STATUS_SUCCESS (non-alertable waits only; STATUS_ALERTED/STATUS_USER_APC are not modeled). - tests/ke_test.cpp: add a test verifying a relative interval blocks for at least the requested duration and a zero interval returns immediately. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 3e1f4d8c-9f26-40cc-ae7d-089fa6c8f959
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Description
Adds a user-mode mock for
KeDelayExecutionThread, the WDM primitive a kernel thread uses to delay its own execution for a relative or absolute interval. This API was not previously provided by usersim.Changes
inc/usersim/ke.h— declaresKeDelayExecutionThreadwith SAL matching the WDKwdm.hcontract (_IRQL_requires_min_(PASSIVE_LEVEL),_IRQL_requires_max_(APC_LEVEL)).src/ke.cpp— mock implementation. A negativeIntervalis a delay relative to the current time and is converted from 100-ns units to milliseconds (rounded up) and passed toSleep; a non-negative (absolute)Intervalis not tracked by the mock and is treated as no delay. ReturnsSTATUS_SUCCESS(non-alertable waits only;STATUS_ALERTED/STATUS_USER_APCare not modeled).tests/ke_test.cpp— adds aKeDelayExecutionThreadtest verifying that a relative interval blocks for at least the requested duration (conservative lower bound to avoid timer-granularity flakiness) and that a zero interval returns immediately.Testing
usersimunit tests ([ke]tag) green, Debug + Release x64.