FreeCalypso > hg > fc-magnetite
view src/gpf3/frame/vsi_sem.c @ 16:c15047b3d00d
cdg3: import from freecalypso-citrine/cdg
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 27 Sep 2016 16:27:34 +0000 |
parents | c41a534f33c6 |
children |
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/* +------------------------------------------------------------------------------ | File: vsi_sem.c +------------------------------------------------------------------------------ | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Purpose : This Module defines the virtual system interface part | for the semaphore handling. +----------------------------------------------------------------------------- */ #ifndef __VSI_SEM_C__ #define __VSI_SEM_C__ #endif /*==== INCLUDES ===================================================*/ #include "typedefs.h" #include "vsi.h" #include "os.h" #include "frm_defs.h" #include "frm_types.h" #include "frm_glob.h" /*==== TYPES ======================================================*/ /*==== CONSTANTS ==================================================*/ /*==== EXTERNALS ==================================================*/ /* -------------- S H A R E D - BEGIN ---------------- */ #ifdef _TOOLS_ #pragma data_seg("FRAME_SHARED") #endif /*==== VARIABLES ==================================================*/ #ifdef _TOOLS_ #pragma data_seg() #endif /* -------------- S H A R E D - END ---------------- */ /*==== FUNCTIONS ==================================================*/ #ifndef RUN_INT_RAM /* +--------------------------------------------------------------------+ | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | | STATE : code ROUTINE : vsi_s_open | +--------------------------------------------------------------------+ PURPOSE : opens a semaphore, creates if not exist */ T_HANDLE vsi_s_open (T_HANDLE Caller, char *Name, USHORT Count) { OS_HANDLE SemHandle; /* * if semaphore already exists, return handle */ if ( os_OpenSemaphore ( Caller, Name, &SemHandle ) != OS_ERROR ) return SemHandle; /* * if semaphore not exists, create */ if ( os_CreateSemaphore ( Caller, Name, Count, &SemHandle, pf_TaskTable[Caller].MemPoolHandle ) != OS_ERROR ) return SemHandle; else vsi_o_assert( Caller, OS_SYST_ERR_MAX_SEMA, __FILE__, __LINE__, "Number of created semaphores > MAX_SEMAPHORES" ); /* * if semaphore cannot be created, return VSI_ERROR */ return VSI_ERROR; } #endif #ifndef RUN_INT_RAM /* +--------------------------------------------------------------------+ | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | | STATE : code ROUTINE : vsi_s_close | +--------------------------------------------------------------------+ PURPOSE : closes a semaphore */ int vsi_s_close (T_HANDLE Caller, T_HANDLE SemHandle) { if ( os_CloseSemaphore ( Caller, SemHandle ) != OS_ERROR ) return VSI_OK; return VSI_ERROR; } #endif #ifndef RUN_FLASH /* +--------------------------------------------------------------------+ | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | | STATE : code ROUTINE : vsi_s_get | +--------------------------------------------------------------------+ PURPOSE : obtains a semaphore */ int vsi_s_get (T_HANDLE Caller, T_HANDLE SemHandle) { LONG Status; Status = os_ObtainSemaphore ( Caller, SemHandle, OS_SUSPEND ); if ( Status == OS_OK || Status == OS_WAITED ) return VSI_OK; return VSI_ERROR; } #endif #ifndef RUN_FLASH /* +--------------------------------------------------------------------+ | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | | STATE : code ROUTINE : vsi_s_release | +--------------------------------------------------------------------+ PURPOSE : releases a semaphore */ int vsi_s_release (T_HANDLE Caller, T_HANDLE SemHandle) { if ( os_ReleaseSemaphore ( Caller, SemHandle ) != OS_ERROR ) return VSI_OK; return VSI_ERROR; } #endif #ifndef RUN_INT_RAM /* +--------------------------------------------------------------------+ | PROJECT : GSM-Frame (8415) MODULE : VSI_SEM | | STATE : code ROUTINE : vsi_s_status | +--------------------------------------------------------------------+ PURPOSE : request the current count of a semaphore */ int vsi_s_status (T_HANDLE Caller, T_HANDLE SemHandle, USHORT *Count ) { if ( os_QuerySemaphore ( Caller, SemHandle, Count ) != OS_ERROR ) return VSI_OK; return VSI_ERROR; } #endif