// rxcontx.h

typedef enum {
  RX_CONTEXT_FLAG_FROM_POOL = 0x00000001,
  RX_CONTEXT_FLAG_WAIT = 0x00000002,
  RX_CONTEXT_FLAG_WRITE_THROUGH = 0x00000004,
  RX_CONTEXT_FLAG_FLOPPY = 0x00000008,
  RX_CONTEXT_FLAG_RECURSIVE_CALL = 0x00000010,
  RX_CONTEXT_FLAG_THIS_DEVICE_TOP_LEVEL = 0x00000020,
  RX_CONTEXT_FLAG_DEFERRED_WRITE = 0x00000040,
  RX_CONTEXT_FLAG_VERIFY_READ = 0x00000080,
  RX_CONTEXT_FLAG_STACK_IO_CONTEZT = 0x00000100,
  RX_CONTEXT_FLAG_IN_FSP = 0x00000200,
  RX_CONTEXT_FLAG_CREATE_MAILSLOT = 0x00000400,
  RX_CONTEXT_FLAG_MAILSLOT_REPARSE = 0x00000800,
  RX_CONTEXT_FLAG_ASYNC_OPERATION = 0x00001000,
  RX_CONTEXT_FLAG_NO_COMPLETE_FROM_FSP = 0x00002000,
  RX_CONTEXT_FLAG_POST_ON_STABLE_CONDITION = 0x00004000,
  RX_CONTEXT_FLAG_FSP_DELAYED_OVERFLOW_QUEUE = 0x00008000,
  RX_CONTEXT_FLAG_FSP_CRITICAL_OVERFLOW_QUEUE = 0x00010000,
  RX_CONTEXT_FLAG_MINIRDR_INVOKED = 0x00020000,
  RX_CONTEXT_FLAG_WAITING_FOR_RESOURCE = 0x00040000,
  RX_CONTEXT_FLAG_CANCELLED = 0x00080000,
  RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS = 0x00100000,
  RX_CONTEXT_FLAG_NO_PREPOSTING_NEEDED = 0x00200000,
  RX_CONTEXT_FLAG_BYPASS_VALIDOP_CHECK = 0x00400000,
  RX_CONTEXT_FLAG_BLOCKED_PIPE_RESUME = 0x00800000,
  RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE = 0x01000000,
  RX_CONTEXT_FLAG_NO_EXCEPTION_BREAKPOINT = 0x02000000,
  RX_CONTEXT_FLAG_NEEDRECONNECT = 0x04000000,
  RX_CONTEXT_FLAG_MUST_SUCCEED = 0x08000000,
  RX_CONTEXT_FLAG_MUST_SUCCEED_NONBLOCKING = 0x10000000,
  RX_CONTEXT_FLAG_MUST_SUCCEED_ALLOCATED = 0x20000000,
  RX_CONTEXT_FLAG_MINIRDR_INITIATED = 0x80000000
} RX_CONTEXT_FLAGS;
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Windows Driver Kit DDI reference (ne-rxcontx-rx_context_flags)

Description

The RX_CONTEXT_FLAGS enumeration specifies flags set by RDBSS during context creation.

Constants

`RX_CONTEXT_FLAG_FROM_POOL:0x00000001`

The context was allocated from pool memory.

`RX_CONTEXT_FLAG_WAIT:0x00000002`

The operation should wait for completion.

`RX_CONTEXT_FLAG_WRITE_THROUGH:0x00000004`

The data must actually be transfered to the file before any requested write operation is considered complete.

`RX_CONTEXT_FLAG_FLOPPY:0x00000008`

The operation involves a floppy disk.

`RX_CONTEXT_FLAG_RECURSIVE_CALL:0x00000010`

Indicates that the call is a recursive call.

`RX_CONTEXT_FLAG_THIS_DEVICE_TOP_LEVEL:0x00000020`

Set when the TopLevelIrp field in the thread local storage isn't the current IRP.

`RX_CONTEXT_FLAG_DEFERRED_WRITE:0x00000040`

The write operation is deferred.

`RX_CONTEXT_FLAG_VERIFY_READ:0x00000080`

The read operation should be verified.

`RX_CONTEXT_FLAG_STACK_IO_CONTEZT:0x00000100`

The I/O context is on the stack.

`RX_CONTEXT_FLAG_IN_FSP:0x00000200`

The operation is being processed by the file system process.

`RX_CONTEXT_FLAG_CREATE_MAILSLOT:0x00000400`

A mailslot is being created.

`RX_CONTEXT_FLAG_MAILSLOT_REPARSE:0x00000800`

Indicates a mailslot reparse operation.

`RX_CONTEXT_FLAG_ASYNC_OPERATION:0x00001000`

The operation is asynchronous.

`RX_CONTEXT_FLAG_NO_COMPLETE_FROM_FSP:0x00002000`

The operation should not be completed by the file system process.

`RX_CONTEXT_FLAG_POST_ON_STABLE_CONDITION:0x00004000`

Post the operation only when the condition is stable.

`RX_CONTEXT_FLAG_FSP_DELAYED_OVERFLOW_QUEUE:0x00008000`

The operation is in the file system process delayed overflow queue.

`RX_CONTEXT_FLAG_FSP_CRITICAL_OVERFLOW_QUEUE:0x00010000`

The operation is in the file system process critical overflow queue.

`RX_CONTEXT_FLAG_MINIRDR_INVOKED:0x00020000`

Indicates that the mini-redirector invoked the operation.

`RX_CONTEXT_FLAG_WAITING_FOR_RESOURCE:0x00040000`

The operation is waiting for a resource.

`RX_CONTEXT_FLAG_CANCELLED:0x00080000`

The operation was cancelled.

`RX_CONTEXT_FLAG_SYNC_EVENT_WAITERS:0x00100000`

There are waiters on a synchronous event.

`RX_CONTEXT_FLAG_NO_PREPOSTING_NEEDED:0x00200000`

No preposting is needed for the operation.

`RX_CONTEXT_FLAG_BYPASS_VALIDOP_CHECK:0x00400000`

Bypass the valid operation check.

`RX_CONTEXT_FLAG_BLOCKED_PIPE_RESUME:0x00800000`

A blocked pipe operation is being resumed.

`RX_CONTEXT_FLAG_IN_SERIALIZATION_QUEUE:0x01000000`

The operation is in the serialization queue.

`RX_CONTEXT_FLAG_NO_EXCEPTION_BREAKPOINT:0x02000000`

Prevent an exception breakpoint.

`RX_CONTEXT_FLAG_NEEDRECONNECT:0x04000000`

A reconnect is needed.

`RX_CONTEXT_FLAG_MUST_SUCCEED:0x08000000`

The operation must succeed.

`RX_CONTEXT_FLAG_MUST_SUCCEED_NONBLOCKING:0x10000000`

The operation must succeed without blocking.

`RX_CONTEXT_FLAG_MUST_SUCCEED_ALLOCATED:0x20000000`

Resources must be allocated for the operation to succeed.

`RX_CONTEXT_FLAG_MINIRDR_INITIATED:0x80000000`

The operation was initiated by the mini-redirector.

RX_CONTEXT_FLAGS - NtDoc