+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
--- --
--- S Y S T E M . O S _ I N T E R F A C E --
--- --
--- S p e c --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1997-2001, Free Software Foundation, Inc. --
--- --
--- GNARL is free software; you can redistribute it and/or modify it under --
--- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
--- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
--- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNARL; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
--- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
--- --
--- GNARL was developed by the GNARL team at Florida State University. --
--- Extensive contributions were provided by Ada Core Technologies Inc. --
--- --
-------------------------------------------------------------------------------
-
--- This is a NT (native) version of this package.
-
--- This package encapsulates all direct interfaces to OS services
--- that are needed by children of System.
-
--- PLEASE DO NOT add any with-clauses to this package
--- or remove the pragma Elaborate_Body.
--- It is designed to be a bottom-level (leaf) package.
-
-with Interfaces.C;
-with Interfaces.C.Strings;
-
-package System.OS_Interface is
-pragma Preelaborate;
-
- subtype int is Interfaces.C.int;
- subtype long is Interfaces.C.long;
-
- -------------------
- -- General Types --
- -------------------
-
- type DWORD is new Interfaces.C.unsigned_long;
- type WORD is new Interfaces.C.unsigned_short;
-
- -- The LARGE_INTEGER type is actually a fixed point type
- -- that only can represent integers. The reason for this is
- -- easier conversion to Duration or other fixed point types.
- -- (See Operations.Clock)
-
- type LARGE_INTEGER is delta 1.0 range -2.0**63 .. 2.0**63 - 1.0;
- for LARGE_INTEGER'Alignment use 4;
-
- subtype PSZ is Interfaces.C.Strings.chars_ptr;
- subtype PCHAR is Interfaces.C.Strings.chars_ptr;
- subtype PVOID is System.Address;
- Null_Void : constant PVOID := System.Null_Address;
-
- type PLONG is access all Interfaces.C.long;
- type PDWORD is access all DWORD;
-
- type BOOL is new Boolean;
- for BOOL'Size use Interfaces.C.unsigned_long'Size;
-
- -------------------------
- -- Handles for objects --
- -------------------------
-
- type HANDLE is new Interfaces.C.long;
- type PHANDLE is access all HANDLE;
-
- subtype Thread_Id is HANDLE;
-
- -----------
- -- Errno --
- -----------
-
- NO_ERROR : constant := 0;
- FUNC_ERR : constant := -1;
-
- -------------
- -- Signals --
- -------------
-
- Max_Interrupt : constant := 31;
- type Signal is new int range 0 .. Max_Interrupt;
- for Signal'Size use int'Size;
-
- SIGINT : constant := 2; -- interrupt (Ctrl-C)
- SIGILL : constant := 4; -- illegal instruction (not reset)
- SIGFPE : constant := 8; -- floating point exception
- SIGSEGV : constant := 11; -- segmentation violation
- SIGTERM : constant := 15; -- software termination signal from kill
- SIGBREAK : constant := 21; -- break (Ctrl-Break)
- SIGABRT : constant := 22; -- used by abort, replace SIGIOT in the future
-
- type sigset_t is private;
-
- type isr_address is access procedure (sig : int);
-
- function intr_attach (sig : int; handler : isr_address) return long;
- pragma Import (C, intr_attach, "signal");
-
- Intr_Attach_Reset : constant Boolean := True;
- -- True if intr_attach is reset after an interrupt handler is called
-
- procedure kill (sig : Signal);
- pragma Import (C, kill, "raise");
-
- ---------------------
- -- Time Management --
- ---------------------
-
- procedure Sleep (dwMilliseconds : DWORD);
- pragma Import (Stdcall, Sleep, External_Name => "Sleep");
-
- type SYSTEMTIME is record
- wYear : WORD;
- wMonth : WORD;
- wDayOfWeek : WORD;
- wDay : WORD;
- wHour : WORD;
- wMinute : WORD;
- wSecond : WORD;
- wMilliseconds : WORD;
- end record;
-
- procedure GetSystemTime (pSystemTime : access SYSTEMTIME);
- pragma Import (Stdcall, GetSystemTime, "GetSystemTime");
-
- procedure GetSystemTimeAsFileTime (lpFileTime : access Long_Long_Integer);
- pragma Import (Stdcall, GetSystemTimeAsFileTime, "GetSystemTimeAsFileTime");
-
- function SetSystemTime (pSystemTime : access SYSTEMTIME) return BOOL;
- pragma Import (Stdcall, SetSystemTime, "SetSystemTime");
-
- function FileTimeToSystemTime
- (lpFileTime : access Long_Long_Integer;
- lpSystemTime : access SYSTEMTIME) return BOOL;
- pragma Import (Stdcall, FileTimeToSystemTime, "FileTimeToSystemTime");
-
- function SystemTimeToFileTime
- (lpSystemTime : access SYSTEMTIME;
- lpFileTime : access Long_Long_Integer) return BOOL;
- pragma Import (Stdcall, SystemTimeToFileTime, "SystemTimeToFileTime");
-
- function FileTimeToLocalFileTime
- (lpFileTime : access Long_Long_Integer;
- lpLocalFileTime : access Long_Long_Integer) return BOOL;
- pragma Import (Stdcall, FileTimeToLocalFileTime, "FileTimeToLocalFileTime");
-
- function LocalFileTimeToFileTime
- (lpFileTime : access Long_Long_Integer;
- lpLocalFileTime : access Long_Long_Integer) return BOOL;
- pragma Import (Stdcall, LocalFileTimeToFileTime, "LocalFileTimeToFileTime");
-
- function QueryPerformanceCounter
- (lpPerformanceCount : access LARGE_INTEGER) return BOOL;
- pragma Import
- (Stdcall, QueryPerformanceCounter, "QueryPerformanceCounter");
-
- function QueryPerformanceFrequency
- (lpFrequency : access LARGE_INTEGER) return BOOL;
- pragma Import
- (Stdcall, QueryPerformanceFrequency, "QueryPerformanceFrequency");
-
- -------------
- -- Threads --
- -------------
-
- type Thread_Body is access
- function (arg : System.Address) return System.Address;
-
- -----------------------
- -- Critical sections --
- -----------------------
-
- type CRITICAL_SECTION is private;
- type PCRITICAL_SECTION is access all CRITICAL_SECTION;
-
- procedure InitializeCriticalSection (pCriticalSection : PCRITICAL_SECTION);
- pragma Import
- (Stdcall, InitializeCriticalSection, "InitializeCriticalSection");
-
- procedure EnterCriticalSection (pCriticalSection : PCRITICAL_SECTION);
- pragma Import (Stdcall, EnterCriticalSection, "EnterCriticalSection");
-
- procedure LeaveCriticalSection (pCriticalSection : PCRITICAL_SECTION);
- pragma Import (Stdcall, LeaveCriticalSection, "LeaveCriticalSection");
-
- procedure DeleteCriticalSection (pCriticalSection : PCRITICAL_SECTION);
- pragma Import (Stdcall, DeleteCriticalSection, "DeleteCriticalSection");
-
- -------------------------------------------------------------
- -- Thread Creation, Activation, Suspension And Termination --
- -------------------------------------------------------------
-
- type PTHREAD_START_ROUTINE is access function
- (pThreadParameter : PVOID) return DWORD;
- pragma Convention (Stdcall, PTHREAD_START_ROUTINE);
-
- type SECURITY_ATTRIBUTES is record
- nLength : DWORD;
- pSecurityDescriptor : PVOID;
- bInheritHandle : BOOL;
- end record;
-
- type PSECURITY_ATTRIBUTES is access all SECURITY_ATTRIBUTES;
-
- function CreateThread
- (pThreadAttributes : PSECURITY_ATTRIBUTES;
- dwStackSize : DWORD;
- pStartAddress : PTHREAD_START_ROUTINE;
- pParameter : PVOID;
- dwCreationFlags : DWORD;
- pThreadId : PDWORD) return HANDLE;
- pragma Import (Stdcall, CreateThread, "CreateThread");
-
- function BeginThreadEx
- (pThreadAttributes : PSECURITY_ATTRIBUTES;
- dwStackSize : DWORD;
- pStartAddress : PTHREAD_START_ROUTINE;
- pParameter : PVOID;
- dwCreationFlags : DWORD;
- pThreadId : PDWORD) return HANDLE;
- pragma Import (C, BeginThreadEx, "_beginthreadex");
-
- Debug_Process : constant := 16#00000001#;
- Debug_Only_This_Process : constant := 16#00000002#;
- Create_Suspended : constant := 16#00000004#;
- Detached_Process : constant := 16#00000008#;
- Create_New_Console : constant := 16#00000010#;
-
- Create_New_Process_Group : constant := 16#00000200#;
-
- Create_No_window : constant := 16#08000000#;
-
- Profile_User : constant := 16#10000000#;
- Profile_Kernel : constant := 16#20000000#;
- Profile_Server : constant := 16#40000000#;
-
- function GetExitCodeThread
- (hThread : HANDLE;
- pExitCode : PDWORD) return BOOL;
- pragma Import (Stdcall, GetExitCodeThread, "GetExitCodeThread");
-
- function ResumeThread (hThread : HANDLE) return DWORD;
- pragma Import (Stdcall, ResumeThread, "ResumeThread");
-
- function SuspendThread (hThread : HANDLE) return DWORD;
- pragma Import (Stdcall, SuspendThread, "SuspendThread");
-
- procedure ExitThread (dwExitCode : DWORD);
- pragma Import (Stdcall, ExitThread, "ExitThread");
-
- procedure EndThreadEx (dwExitCode : DWORD);
- pragma Import (C, EndThreadEx, "_endthreadex");
-
- function TerminateThread
- (hThread : HANDLE;
- dwExitCode : DWORD) return BOOL;
- pragma Import (Stdcall, TerminateThread, "TerminateThread");
-
- function GetCurrentThread return HANDLE;
- pragma Import (Stdcall, GetCurrentThread, "GetCurrentThread");
-
- function GetCurrentProcess return HANDLE;
- pragma Import (Stdcall, GetCurrentProcess, "GetCurrentProcess");
-
- function GetCurrentThreadId return DWORD;
- pragma Import (Stdcall, GetCurrentThreadId, "GetCurrentThreadId");
-
- function TlsAlloc return DWORD;
- pragma Import (Stdcall, TlsAlloc, "TlsAlloc");
-
- function TlsGetValue (dwTlsIndex : DWORD) return PVOID;
- pragma Import (Stdcall, TlsGetValue, "TlsGetValue");
-
- function TlsSetValue (dwTlsIndex : DWORD; pTlsValue : PVOID) return BOOL;
- pragma Import (Stdcall, TlsSetValue, "TlsSetValue");
-
- function TlsFree (dwTlsIndex : DWORD) return BOOL;
- pragma Import (Stdcall, TlsFree, "TlsFree");
-
- TLS_Nothing : constant := DWORD'Last;
-
- procedure ExitProcess (uExitCode : Interfaces.C.unsigned);
- pragma Import (Stdcall, ExitProcess, "ExitProcess");
-
- function WaitForSingleObject
- (hHandle : HANDLE;
- dwMilliseconds : DWORD) return DWORD;
- pragma Import (Stdcall, WaitForSingleObject, "WaitForSingleObject");
-
- function WaitForSingleObjectEx
- (hHandle : HANDLE;
- dwMilliseconds : DWORD;
- fAlertable : BOOL) return DWORD;
- pragma Import (Stdcall, WaitForSingleObjectEx, "WaitForSingleObjectEx");
-
- Wait_Infinite : constant := DWORD'Last;
- WAIT_TIMEOUT : constant := 16#0000_0102#;
- WAIT_FAILED : constant := 16#FFFF_FFFF#;
-
- ------------------------------------
- -- Semaphores, Events and Mutexes --
- ------------------------------------
-
- function CloseHandle (hObject : HANDLE) return BOOL;
- pragma Import (Stdcall, CloseHandle, "CloseHandle");
-
- function CreateSemaphore
- (pSemaphoreAttributes : PSECURITY_ATTRIBUTES;
- lInitialCount : Interfaces.C.long;
- lMaximumCount : Interfaces.C.long;
- pName : PSZ) return HANDLE;
- pragma Import (Stdcall, CreateSemaphore, "CreateSemaphoreA");
-
- function OpenSemaphore
- (dwDesiredAccess : DWORD;
- bInheritHandle : BOOL;
- pName : PSZ) return HANDLE;
- pragma Import (Stdcall, OpenSemaphore, "OpenSemaphoreA");
-
- function ReleaseSemaphore
- (hSemaphore : HANDLE;
- lReleaseCount : Interfaces.C.long;
- pPreviousCount : PLONG) return BOOL;
- pragma Import (Stdcall, ReleaseSemaphore, "ReleaseSemaphore");
-
- function CreateEvent
- (pEventAttributes : PSECURITY_ATTRIBUTES;
- bManualReset : BOOL;
- bInitialState : BOOL;
- pName : PSZ) return HANDLE;
- pragma Import (Stdcall, CreateEvent, "CreateEventA");
-
- function OpenEvent
- (dwDesiredAccess : DWORD;
- bInheritHandle : BOOL;
- pName : PSZ) return HANDLE;
- pragma Import (Stdcall, OpenEvent, "OpenEventA");
-
- function SetEvent (hEvent : HANDLE) return BOOL;
- pragma Import (Stdcall, SetEvent, "SetEvent");
-
- function ResetEvent (hEvent : HANDLE) return BOOL;
- pragma Import (Stdcall, ResetEvent, "ResetEvent");
-
- function PulseEvent (hEvent : HANDLE) return BOOL;
- pragma Import (Stdcall, PulseEvent, "PulseEvent");
-
- function CreateMutex
- (pMutexAttributes : PSECURITY_ATTRIBUTES;
- bInitialOwner : BOOL;
- pName : PSZ) return HANDLE;
- pragma Import (Stdcall, CreateMutex, "CreateMutexA");
-
- function OpenMutex
- (dwDesiredAccess : DWORD;
- bInheritHandle : BOOL;
- pName : PSZ) return HANDLE;
- pragma Import (Stdcall, OpenMutex, "OpenMutexA");
-
- function ReleaseMutex (hMutex : HANDLE) return BOOL;
- pragma Import (Stdcall, ReleaseMutex, "ReleaseMutex");
-
- ---------------------------------------------------
- -- Accessing properties of Threads and Processes --
- ---------------------------------------------------
-
- -----------------
- -- Priorities --
- -----------------
-
- function SetThreadPriority
- (hThread : HANDLE;
- nPriority : Interfaces.C.int) return BOOL;
- pragma Import (Stdcall, SetThreadPriority, "SetThreadPriority");
-
- function GetThreadPriority (hThread : HANDLE) return Interfaces.C.int;
- pragma Import (Stdcall, GetThreadPriority, "GetThreadPriority");
-
- function SetPriorityClass
- (hProcess : HANDLE;
- dwPriorityClass : DWORD) return BOOL;
- pragma Import (Stdcall, SetPriorityClass, "SetPriorityClass");
-
- Normal_Priority_Class : constant := 16#00000020#;
- Idle_Priority_Class : constant := 16#00000040#;
- High_Priority_Class : constant := 16#00000080#;
- Realtime_Priority_Class : constant := 16#00000100#;
-
- Thread_Priority_Idle : constant := -15;
- Thread_Priority_Lowest : constant := -2;
- Thread_Priority_Below_Normal : constant := -1;
- Thread_Priority_Normal : constant := 0;
- Thread_Priority_Above_Normal : constant := 1;
- Thread_Priority_Highest : constant := 2;
- Thread_Priority_Time_Critical : constant := 15;
- Thread_Priority_Error_Return : constant := Interfaces.C.long'Last;
-
- function GetLastError return DWORD;
- pragma Import (Stdcall, GetLastError, "GetLastError");
-
-private
-
- type sigset_t is new Interfaces.C.unsigned_long;
-
- type CRITICAL_SECTION is record
- DebugInfo : System.Address;
- -- The following three fields control entering and
- -- exiting the critical section for the resource
- LockCount : Long_Integer;
- RecursionCount : Long_Integer;
- OwningThread : HANDLE;
- LockSemaphore : HANDLE;
- Reserved : DWORD;
- end record;
-
-end System.OS_Interface;
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