FreeCalypso > hg > fc-tourmaline
diff src/nucleus/mbse.c @ 0:4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 16 Oct 2020 06:23:26 +0000 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/nucleus/mbse.c Fri Oct 16 06:23:26 2020 +0000 @@ -0,0 +1,222 @@ +/*************************************************************************/ +/* */ +/* Copyright Mentor Graphics Corporation 2002 */ +/* All Rights Reserved. */ +/* */ +/* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ +/* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ +/* SUBJECT TO LICENSE TERMS. */ +/* */ +/*************************************************************************/ + +/*************************************************************************/ +/* */ +/* FILE NAME VERSION */ +/* */ +/* mbse.c Nucleus PLUS 1.14 */ +/* */ +/* COMPONENT */ +/* */ +/* MB - Mailbox Management */ +/* */ +/* DESCRIPTION */ +/* */ +/* This file contains the error checking routines for the functions */ +/* in the Mailbox component. This permits easy removal of error */ +/* checking logic when it is not needed. */ +/* */ +/* DATA STRUCTURES */ +/* */ +/* None */ +/* */ +/* FUNCTIONS */ +/* */ +/* MBSE_Reset_Mailbox Reset a mailbox */ +/* MBSE_Receive_From_Mailbox Receive a mailbox message */ +/* */ +/* DEPENDENCIES */ +/* */ +/* cs_extr.h Common Service functions */ +/* tc_extr.h Thread Control functions */ +/* mb_extr.h Mailbox functions */ +/* */ +/* HISTORY */ +/* */ +/* DATE REMARKS */ +/* */ +/* 03-01-1994 Created initial version 1.1 from */ +/* routines originally in core */ +/* error checking file */ +/* */ +/* 03-18-1994 Verified version 1.1 */ +/* 04-17-1996 updated to version 1.2 */ +/* 03-24-1998 Released version 1.3 */ +/* 04-17-2002 Released version 1.13m */ +/* 11-07-2002 Released version 1.14 */ +/*************************************************************************/ +#define NU_SOURCE_FILE + + +#include "cs_extr.h" /* Common service functions */ +#include "tc_extr.h" /* Thread control functions */ +#include "mb_extr.h" /* Mailbox functions */ + + + +/*************************************************************************/ +/* */ +/* FUNCTION */ +/* */ +/* MBSE_Reset_Mailbox */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function performs error checking on the parameters supplied */ +/* to the actual reset mailbox function. */ +/* */ +/* CALLED BY */ +/* */ +/* Application */ +/* */ +/* CALLS */ +/* */ +/* MBS_Reset_Mailbox Actual reset mailbox function*/ +/* */ +/* INPUTS */ +/* */ +/* mailbox_ptr Mailbox control block pointer*/ +/* */ +/* OUTPUTS */ +/* */ +/* NU_INVALID_MAILBOX Invalid mailbox supplied */ +/* */ +/* HISTORY */ +/* */ +/* DATE REMARKS */ +/* */ +/* 03-01-1993 Created initial version 1.0 */ +/* 04-19-1993 Verified version 1.0 */ +/* 03-01-1994 Modified interface to exactly */ +/* match prototype, resulting in */ +/* version 1.1 */ +/* */ +/* 03-18-1994 Verified version 1.1 */ +/* */ +/*************************************************************************/ +STATUS MBSE_Reset_Mailbox(NU_MAILBOX *mailbox_ptr) +{ + +MB_MCB *mailbox; /* Mailbox control block ptr */ +STATUS status; /* Completion status */ + + + /* Move input mailbox pointer into internal pointer. */ + mailbox = (MB_MCB *) mailbox_ptr; + + /* Determine if the mailbox pointer is valid. */ + if ((mailbox) && (mailbox -> mb_id == MB_MAILBOX_ID)) + + /* Mailbox pointer is valid, call function to reset it. */ + status = MBS_Reset_Mailbox(mailbox_ptr); + + else + + /* Mailbox pointer is invalid, indicate in completion status. */ + status = NU_INVALID_MAILBOX; + + /* Return completion status. */ + return(status); +} + + +/*************************************************************************/ +/* */ +/* FUNCTION */ +/* */ +/* MBSE_Broadcast_To_Mailbox */ +/* */ +/* DESCRIPTION */ +/* */ +/* This function performs error checking on the parameters supplied */ +/* to the mailbox broadcast function. */ +/* */ +/* CALLED BY */ +/* */ +/* Application */ +/* */ +/* CALLS */ +/* */ +/* MBS_Broadcast_To_Mailbox Actual broadcast mailbox func*/ +/* TCCE_Suspend_Error Check suspend validity */ +/* */ +/* INPUTS */ +/* */ +/* mailbox_ptr Mailbox control block pointer*/ +/* message Pointer to message to send */ +/* suspend Suspension option if full */ +/* */ +/* OUTPUTS */ +/* */ +/* NU_INVALID_MAILBOX Mailbox pointer is invalid */ +/* NU_INVALID_POINTER Message pointer is invalid */ +/* NU_INVALID_SUSPEND Invalid suspend request */ +/* */ +/* HISTORY */ +/* */ +/* DATE REMARKS */ +/* */ +/* 03-01-1993 Created initial version 1.0 */ +/* 04-19-1993 Verified version 1.0 */ +/* 03-01-1994 Modified interface to exactly */ +/* match prototype, resulting in */ +/* version 1.1 */ +/* */ +/* 03-18-1994 Verified version 1.1 */ +/* */ +/*************************************************************************/ +STATUS MBSE_Broadcast_To_Mailbox(NU_MAILBOX *mailbox_ptr, VOID *message, + UNSIGNED suspend) +{ + +MB_MCB *mailbox; /* Mailbox control block ptr */ +STATUS status; /* Completion status */ + + + + /* Move input mailbox pointer into internal pointer. */ + mailbox = (MB_MCB *) mailbox_ptr; + + /* Determine if mailbox pointer is invalid. */ + if (mailbox == NU_NULL) + + /* Mailbox pointer is invalid, indicate in completion status. */ + status = NU_INVALID_MAILBOX; + + else if (mailbox -> mb_id != MB_MAILBOX_ID) + + /* Mailbox pointer is invalid, indicate in completion status. */ + status = NU_INVALID_MAILBOX; + + else if (message == NU_NULL) + + /* Message pointer is invalid, indicate in completion status. */ + status = NU_INVALID_POINTER; + + else if ((suspend) && (TCCE_Suspend_Error())) + + /* Indicate that suspension is only valid from a task thread. */ + status = NU_INVALID_SUSPEND; + + else + + /* Parameters are valid, call actual function. */ + status = MBS_Broadcast_To_Mailbox(mailbox_ptr, message, suspend); + + /* Return the completion status. */ + return(status); +} + + + + +