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- ------------------------------------------------------------------------------
- -- --
- -- GNU ADA RUNTIME LIBRARY (GNARL) COMPONENTS --
- -- --
- -- S Y S T E M . O S 2 L I B . S Y N C H R O N I Z A T I O N --
- -- --
- -- S p e c --
- -- --
- -- $Revision: 1.7 $ --
- -- --
- -- Copyright (c) 1993,1994,1995 NYU, All Rights Reserved --
- -- --
- -- GNARL is free software; you can redistribute it and/or modify it under --
- -- terms of the GNU Library General Public License as published by the --
- -- Free Software Foundation; either version 2, or (at your option) any --
- -- later version. GNARL is distributed in the hope that it will be use- --
- -- ful, but but WITHOUT ANY WARRANTY; without even the implied warranty of --
- -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Gen- --
- -- eral Library Public License for more details. You should have received --
- -- a copy of the GNU Library General Public License along with GNARL; see --
- -- file COPYING. If not, write to the Free Software Foundation, 675 Mass --
- -- Ave, Cambridge, MA 02139, USA. --
- -- --
- ------------------------------------------------------------------------------
-
- with Interfaces.C;
- with System;
- with System.OS2Lib.Threads;
-
- package System.OS2Lib.Synchronization is
- pragma Preelaborate (Synchronization);
-
- use Interfaces.C;
- use System;
- use System.OS2Lib.Threads;
-
- -- Critical sections
-
- function DosEnterCritSec return APIRET;
- pragma Import (C, DosEnterCritSec, "DosEnterCritSec");
-
- function DosExitCritSec return APIRET;
- pragma Import (C, DosExitCritSec, "DosExitCritSec");
-
- -- Semaphore Attributes
-
- DC_SEM_SHARED : constant := 16#01#;
- -- DosCreateMutex, DosCreateEvent, and DosCreateMuxWait use it to indicate
- -- whether the semaphore is shared or private when the PSZ is null
-
- DCMW_WAIT_ANY : constant := 16#02#;
- -- DosCreateMuxWait option for wait on any event/mutex to occur
-
- DCMW_WAIT_ALL : constant := 16#04#;
- -- DosCreateMuxWait option for wait on all events/mutexes to occur
-
- SEM_INDEFINITE_WAIT : constant ULONG := -1;
- SEM_IMMEDIATE_RETURN : constant ULONG := 0;
-
- type HSEM is new System.Address;
- type PHSEM is access all HSEM;
-
- type SEMRECORD is
- record
- hsemCur : HSEM;
- ulUser : ULONG;
- end record;
- type PSEMRECORD is access all SEMRECORD;
-
-
- type HEV is new unsigned_long;
- type PHEV is access all HEV;
-
- type HMTX is new unsigned_long;
- type PHMTX is access all HMTX;
- type HMUX is new unsigned_long;
- type PHMUX is access all HMUX;
-
- function DosCreateEventSem
- (pszName : PSZ;
- f_phev : PHEV;
- flAttr : ULONG;
- fState : BOOL32)
- return APIRET;
- pragma Import (C, DosCreateEventSem, "DosCreateEventSem");
-
- function DosOpenEventSem
- (pszName : PSZ;
- F_phev : PHEV)
- return APIRET;
- pragma Import (C, DosOpenEventSem, "DosOpenEventSem");
-
- function DosCloseEventSem
- (F_hev : HEV)
- return APIRET;
- pragma Import (C, DosCloseEventSem, "DosCloseEventSem");
-
- function DosResetEventSem
- (F_hev : HEV;
- pulPostCt : PULONG)
- return APIRET;
- pragma Import (C, DosResetEventSem, "DosResetEventSem");
-
- function DosPostEventSem
- (F_hev : HEV)
- return APIRET;
- pragma Import (C, DosPostEventSem, "DosPostEventSem");
-
- function DosWaitEventSem
- (F_hev : HEV;
- ulTimeout : ULONG)
- return APIRET;
- pragma Import (C, DosWaitEventSem, "DosWaitEventSem");
-
- function DosQueryEventSem
- (F_hev : HEV;
- pulPostCt : PULONG)
- return APIRET;
- pragma Import (C, DosQueryEventSem, "DosQueryEventSem");
-
- function DosCreateMutexSem
- (pszName : PSZ;
- F_phmtx : PHMTX;
- flAttr : ULONG;
- fState : BOOL32)
- return APIRET;
- pragma Import (C, DosCreateMutexSem, "DosCreateMutexSem");
-
- function DosOpenMutexSem
- (pszName : PSZ;
- F_phmtx : PHMTX)
- return APIRET;
- pragma Import (C, DosOpenMutexSem, "DosOpenMutexSem");
-
- function DosCloseMutexSem
- (F_hmtx : HMTX)
- return APIRET;
- pragma Import (C, DosCloseMutexSem, "DosCloseMutexSem");
-
- function DosRequestMutexSem
- (F_hmtx : HMTX;
- ulTimeout : ULONG)
- return APIRET;
- pragma Import (C, DosRequestMutexSem, "DosRequestMutexSem");
-
- function DosReleaseMutexSem
- (F_hmtx : HMTX)
- return APIRET;
- pragma Import (C, DosReleaseMutexSem, "DosReleaseMutexSem");
-
- function DosQueryMutexSem
- (F_hmtx : HMTX;
- F_ppid : PPID;
- F_ptid : PTID;
- pulCount : PULONG)
- return APIRET;
- pragma Import (C, DosQueryMutexSem, "DosQueryMutexSem");
-
- function DosCreateMuxWaitSem
- (pszName : PSZ;
- F_phmux : PHMUX;
- cSemRec : ULONG;
- pSemRec : PSEMRECORD;
- flAttr : ULONG)
- return APIRET;
- pragma Import (C, DosCreateMuxWaitSem, "DosCreateMuxWaitSem");
-
- function DosOpenMuxWaitSem
- (pszName : PSZ;
- F_phmux : PHMUX)
- return APIRET;
- pragma Import (C, DosOpenMuxWaitSem, "DosOpenMuxWaitSem");
-
- function DosCloseMuxWaitSem
- (F_hmux : HMUX)
- return APIRET;
- pragma Import (C, DosCloseMuxWaitSem, "DosCloseMuxWaitSem");
-
- function DosWaitMuxWaitSem
- (F_hmux : HMUX;
- ulTimeout : ULONG;
- pulUser : PULONG)
- return APIRET;
- pragma Import (C, DosWaitMuxWaitSem, "DosWaitMuxWaitSem");
-
- function DosAddMuxWaitSem
- (F_hmux : HMUX;
- pSemRec : PSEMRECORD)
- return APIRET;
- pragma Import (C, DosAddMuxWaitSem, "DosAddMuxWaitSem");
-
- function DosDeleteMuxWaitSem
- (F_hmux : HMUX;
- F_hsem : HSEM)
- return APIRET;
- pragma Import (C, DosDeleteMuxWaitSem, "DosDeleteMuxWaitSem");
-
- function DosQueryMuxWaitSem
- (F_hmux : HMUX;
- pcSemRec : PULONG;
- pSemRec : PSEMRECORD;
- pflAttr : PULONG)
- return APIRET;
- pragma Import (C, DosQueryMuxWaitSem, "DosQueryMuxWaitSem");
-
- end System.OS2Lib.Synchronization;
-