* pinfo.cc (EnumProcessesNT): New function. Eliminates dependence on psapi.h.

(EnumProcesses9x): Rename from EnumProcessesW95.  Change arguments to be more
useful for cygwin.
(winpids::init): Accomodate argument changes.
(enum_init): Ditto.
* pinfo.h (winpids): Make pidlist dynamically extendable by storing it as a
pointer and remembering the size.
* ntdll.h: Add extra definitions needed for EnumProcessesNT.  Reformat via
'indent'.

winsup/cygwin/ntdll.h

@@ -8,17 +8,17 @@
    Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
    details. */
 
-/*
- * The following both data structures aren't defined anywhere in the Microsoft
- * header files. Taken from the book "Windows NT/2000 Native API Reference"
- * by Gary Nebbett.
- */
-typedef enum _SYSTEM_INFORMATION_CLASS {
-  SystemBasicInformation = 0
-  /* Dropped each other since not used here. */
+#define STATUS_INFO_LENGTH_MISMATCH ((NTSTATUS) 0xc0000004)
+
+typedef enum _SYSTEM_INFORMATION_CLASS
+{
+  SystemBasicInformation = 0,
+  SystemProcessesAndThreadsInformation = 5,
+  /* There are a lot more of these... */
 } SYSTEM_INFORMATION_CLASS;
 
-typedef struct _SYSTEM_BASIC_INFORMATION {
+typedef struct _SYSTEM_BASIC_INFORMATION
+{
   ULONG Unknown;
   ULONG MaximumIncrement;
   ULONG PhysicalPageSize;
@@ -32,19 +32,130 @@ typedef struct _SYSTEM_BASIC_INFORMATION {
   ULONG NumberProcessors;
 } SYSTEM_BASIC_INFORMATION, *PSYSTEM_BASIC_INFORMATION;
 
-/*
- * Function declarations for ntdll.dll. They doesn't appear in any
- * Win32 header either.
- */
-extern "C" {
-NTSTATUS NTAPI NtMapViewOfSection(HANDLE,HANDLE,PVOID*,ULONG,ULONG,
-                                  PLARGE_INTEGER,PULONG,SECTION_INHERIT,
-                                  ULONG,ULONG);
-NTSTATUS NTAPI NtQuerySystemInformation(SYSTEM_INFORMATION_CLASS,
-                                        PVOID,ULONG,PULONG);
-NTSTATUS NTAPI NtOpenSection(PHANDLE,ACCESS_MASK,POBJECT_ATTRIBUTES);
-NTSTATUS NTAPI NtUnmapViewOfSection(HANDLE,PVOID);
-VOID NTAPI RtlInitUnicodeString(PUNICODE_STRING,PCWSTR);
-ULONG NTAPI RtlNtStatusToDosError(NTSTATUS);
-}
+typedef LONG KPRIORITY;
+typedef struct _VM_COUNTERS
+{
+  ULONG PeakVirtualSize;
+  ULONG VirtualSize;
+  ULONG PageFaultCount;
+  ULONG PeakWorkingSetSize;
+  ULONG WorkingSetSize;
+  ULONG QuotaPeakPagedPoolUsage;
+  ULONG QuotaPagedPoolUsage;
+  ULONG QuotaPeakNonPagedPoolUsage;
+  ULONG QuotaNonPagedPoolUsage;
+  ULONG PagefileUsage;
+  ULONG PeakPagefileUsage;
+} VM_COUNTERS, *PVM_COUNTERS;
 
+typedef struct _IO_COUNTERS
+{
+  LARGE_INTEGER ReadOperationCount;
+  LARGE_INTEGER WriteOperationCount;
+  LARGE_INTEGER OtherOperationCount;
+  LARGE_INTEGER ReadTransferCount;
+  LARGE_INTEGER WriteTransferCount;
+  LARGE_INTEGER OtherTransferCount;
+} IO_COUNTERS, *PIO_COUNTERS;
+
+typedef struct _CLIENT_ID
+{
+  HANDLE UniqueProcess;
+  HANDLE UniqueThread;
+} CLIENT_ID, *PCLIENT_ID;
+
+typedef enum
+{
+  StateInitialized,
+  StateReady,
+  StateRunning,
+  StateStandby,
+  StateTerminated,
+  StateWait,
+  StateTransition,
+  StateUnknown,
+} THREAD_STATE;
+
+typedef enum
+{
+  Executive,
+  FreePage,
+  PageIn,
+  PoolAllocation,
+  DelayExecution,
+  Suspended,
+  UserRequest,
+  WrExecutive,
+  WrFreePage,
+  WrPageIn,
+  WrPoolAllocation,
+  WrDelayExecution,
+  WrSuspended,
+  WrUserRequest,
+  WrEventPair,
+  WrQueue,
+  WrLpcReceive,
+  WrLpcReply,
+  WrVirtualMemory,
+  WrPageOut,
+  WrRendezvous,
+  Spare2,
+  Spare3,
+  Spare4,
+  Spare5,
+  Spare6,
+  WrKernel,
+  MaximumWaitReason
+} KWAIT_REASON;
+
+typedef struct _SYSTEM_THREADS
+{
+  LARGE_INTEGER KernelTime;
+  LARGE_INTEGER UserTime;
+  LARGE_INTEGER CreateTime;
+  ULONG WaitTime;
+  PVOID StartAddress;
+  CLIENT_ID ClientId;
+  KPRIORITY Priority;
+  KPRIORITY BasePriority;
+  ULONG ContextSwitchCount;
+  THREAD_STATE State;
+  KWAIT_REASON WaitReason;
+} SYSTEM_THREADS, *PSYSTEM_THREADS;
+
+typedef struct _SYSTEM_PROCESSES
+{
+  ULONG NextEntryDelta;
+  ULONG Threadcount;
+  ULONG Reserved1[6];
+  LARGE_INTEGER CreateTime;
+  LARGE_INTEGER UserTime;
+  LARGE_INTEGER KernelTime;
+  UNICODE_STRING ProcessName;
+  KPRIORITY BasePriority;
+  ULONG ProcessId;
+  ULONG InheritedFromProcessId;
+  ULONG HandleCount;
+  ULONG Reserved2[2];
+  VM_COUNTERS VmCounters;
+  IO_COUNTERS IoCounters;
+  SYSTEM_THREADS Threads[1];
+} SYSTEM_PROCESSES, *PSYSTEM_PROCESSES;
+
+/* Function declarations for ntdll.dll.  These don't appear in any
+   standard Win32 header.  */
+extern "C"
+{
+  NTSTATUS NTAPI NtMapViewOfSection (HANDLE, HANDLE, PVOID *, ULONG, ULONG,
+				     PLARGE_INTEGER, PULONG, SECTION_INHERIT,
+				     ULONG, ULONG);
+  NTSTATUS NTAPI NtQuerySystemInformation (SYSTEM_INFORMATION_CLASS,
+					   PVOID, ULONG, PULONG);
+  NTSTATUS NTAPI NtOpenSection (PHANDLE, ACCESS_MASK, POBJECT_ATTRIBUTES);
+  NTSTATUS NTAPI NtUnmapViewOfSection (HANDLE, PVOID);
+  VOID NTAPI RtlInitUnicodeString (PUNICODE_STRING, PCWSTR);
+  ULONG NTAPI RtlNtStatusToDosError (NTSTATUS);
+  NTSTATUS NTAPI ZwQuerySystemInformation (IN SYSTEM_INFORMATION_CLASS,
+					   IN OUT PVOID, IN ULONG,
+					   OUT PULONG);
+}