FreeCalypso > hg > fc-tourmaline
view src/nucleus/quce.c @ 43:01a8b04242af
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| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Sat, 17 Oct 2020 10:04:54 +0000 |
| parents | 4e78acac3d88 |
| children |
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/*************************************************************************/ /* */ /* 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 */ /* */ /* quce.c Nucleus PLUS 1.14 */ /* */ /* COMPONENT */ /* */ /* QU - Queue Management */ /* */ /* DESCRIPTION */ /* */ /* This file contains error checking routines for core functions */ /* of the Queue component. This permits easy removal of error */ /* checking logic when it is not needed. */ /* */ /* DATA STRUCTURES */ /* */ /* None */ /* */ /* FUNCTIONS */ /* */ /* QUCE_Create_Queue Create a queue */ /* QUCE_Delete_Queue Delete a queue */ /* QUCE_Send_To_Queue Send a queue message */ /* QUCE_Receive_From_Queue Receive a queue message */ /* */ /* DEPENDENCIES */ /* */ /* cs_extr.h Common Service functions */ /* tc_extr.h Thread Control functions */ /* qu_extr.h Queue functions */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Split original error checking */ /* file and changed function */ /* interfaces, resulting in */ /* version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 04-17-1996 updated to version 1.2 */ /* 10-28-1997 Modified QUCE_Receive_From_Queue */ /* to correct SPR142. This */ /* created version 1.2a. */ /* 03-24-1998 Released version 1.3. */ /* 06-04-1998 Modified QUCE_Send_To_Queue to */ /* check for a size of 0, created */ /* version 1.3a. (SPR493) */ /* 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 "qu_extr.h" /* Queue functions */ /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* QUCE_Create_Queue */ /* */ /* DESCRIPTION */ /* */ /* This function performs error checking on the parameters supplied */ /* to the queue create function. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* QUC_Create_Queue Actual create queue function */ /* */ /* INPUTS */ /* */ /* queue_ptr Queue control block pointer */ /* name Queue name */ /* start_address Starting address of actual */ /* queue area */ /* queue_size Total size of queue */ /* message_type Type of message supported by */ /* the queue (fixed/variable) */ /* message_size Size of message. Variable */ /* message-length queues, this*/ /* represents the maximum size*/ /* suspend_type Suspension type */ /* */ /* OUTPUTS */ /* */ /* NU_INVALID_QUEUE Invalid queue pointer */ /* NU_INVALID_MEMORY Invalid queue starting addr */ /* NU_INVALID_SIZE Invalid queue size and/or */ /* size of message */ /* NU_INVALID_MESSAGE Invalid message type */ /* NU_INVALID_SUSPEND Invalid suspend type */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Modified function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ STATUS QUCE_Create_Queue(NU_QUEUE *queue_ptr, CHAR *name, VOID *start_address, UNSIGNED queue_size, OPTION message_type, UNSIGNED message_size, OPTION suspend_type) { QU_QCB *queue; STATUS status; INT overhead; /* Move input queue pointer into internal pointer. */ queue = (QU_QCB *) queue_ptr; /* Determine if queue supports variable length messages. If so, an additional word of overhead is required. */ if (message_type == NU_VARIABLE_SIZE) /* Variable-size queues require an additional word of overhead. */ overhead = 1; else /* Fixed-size message queues require no additional overhead. */ overhead = 0; /* Determine if there is an error with the queue pointer. */ if ((queue == NU_NULL) || (queue -> qu_id == QU_QUEUE_ID)) /* Indicate that the queue pointer is invalid. */ status = NU_INVALID_QUEUE; else if (start_address == NU_NULL) /* Indicate that the starting address of the queue is invalid. */ status = NU_INVALID_MEMORY; else if ((queue_size == 0) || (message_size == 0) || ((message_size+overhead) > queue_size)) /* Indicate that one or both of the size parameters are invalid. */ status = NU_INVALID_SIZE; else if ((message_type != NU_FIXED_SIZE) && (message_type != NU_VARIABLE_SIZE)) /* Indicate that the message type is invalid. */ status = NU_INVALID_MESSAGE; else if ((suspend_type != NU_FIFO) && (suspend_type != NU_PRIORITY)) /* Indicate that the suspend type is invalid. */ status = NU_INVALID_SUSPEND; else /* All the parameters are okay, call the actual function to create a queue. */ status = QUC_Create_Queue(queue_ptr, name, start_address, queue_size, message_type, message_size, suspend_type); /* Return completion status. */ return(status); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* QUCE_Delete_Queue */ /* */ /* DESCRIPTION */ /* */ /* This function performs error checking on the parameter supplied */ /* to the queue delete function. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* QUC_Delete_Queue Actual delete queue function */ /* */ /* INPUTS */ /* */ /* queue_ptr Queue control block pointer */ /* */ /* OUTPUTS */ /* */ /* NU_INVALID_QUEUE Invalid queue pointer */ /* */ /* HISTORY */ /* */ /* DATE REMARKS */ /* */ /* 03-01-1993 Created initial version 1.0 */ /* 04-19-1993 Verified version 1.0 */ /* 03-01-1994 Modified function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* */ /*************************************************************************/ STATUS QUCE_Delete_Queue(NU_QUEUE *queue_ptr) { QU_QCB *queue; STATUS status; /* Move input queue pointer into internal pointer. */ queue = (QU_QCB *) queue_ptr; /* Determine if there is an error with the queue pointer. */ if (queue == NU_NULL) /* Indicate that the queue pointer is invalid. */ status = NU_INVALID_QUEUE; else if (queue -> qu_id != QU_QUEUE_ID) /* Indicate that the queue pointer is invalid. */ status = NU_INVALID_QUEUE; else /* All the parameters are okay, call the actual function to delete a queue. */ status = QUC_Delete_Queue(queue_ptr); /* Return completion status. */ return(status); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* QUCE_Send_To_Queue */ /* */ /* DESCRIPTION */ /* */ /* This function performs error checking on the parameters supplied */ /* to the send message to queue function. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* QUC_Send_To_Queue Actual send queue message */ /* function */ /* TCCE_Suspend_Error Check suspend validity */ /* */ /* INPUTS */ /* */ /* queue_ptr Queue control block pointer */ /* message Pointer to message to send */ /* size Size of message to send */ /* suspend Suspension option if full */ /* */ /* OUTPUTS */ /* */ /* NU_INVALID_QUEUE Invalid queue pointer */ /* NU_INVALID_POINTER Invalid message pointer */ /* NU_INVALID_SIZE Invalid message size */ /* 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 function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 06-04-1998 Corrected SPR493 */ /* */ /*************************************************************************/ STATUS QUCE_Send_To_Queue(NU_QUEUE *queue_ptr, VOID *message, UNSIGNED size, UNSIGNED suspend) { QU_QCB *queue; STATUS status; /* Move input queue pointer into internal pointer. */ queue = (QU_QCB *) queue_ptr; /* Determine if there is an error with the queue pointer. */ if (queue == NU_NULL) /* Indicate that the queue pointer is invalid. */ status = NU_INVALID_QUEUE; else if (queue -> qu_id != QU_QUEUE_ID) /* Indicate that the queue pointer is invalid. */ status = NU_INVALID_QUEUE; else if (message == NU_NULL) /* Indicate that the pointer to the message is invalid. */ status = NU_INVALID_POINTER; else if (size == 0) /* Indicate that the message size is invalid. */ status = NU_INVALID_SIZE; else if ((queue -> qu_fixed_size) && (size != queue -> qu_message_size)) /* Indicate that the message size is invalid. */ status = NU_INVALID_SIZE; else if ((!queue -> qu_fixed_size) && (size > queue -> qu_message_size)) /* Indicate that the message size is invalid. */ status = NU_INVALID_SIZE; else if ((suspend) && (TCCE_Suspend_Error())) /* Indicate that the suspension is only allowed from a task thread. */ status = NU_INVALID_SUSPEND; else /* All the parameters are okay, call the actual function to send a message to a queue. */ status = QUC_Send_To_Queue(queue_ptr, message, size, suspend); /* Return completion status. */ return(status); } /*************************************************************************/ /* */ /* FUNCTION */ /* */ /* QUCE_Receive_From_Queue */ /* */ /* DESCRIPTION */ /* */ /* This function performs error checking on the parameters supplied */ /* to the receive message from queue function. */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* CALLS */ /* */ /* QUC_Receive_From_Queue Actual receive message from */ /* queue */ /* TCCE_Suspend_Error Check suspend validity */ /* */ /* INPUTS */ /* */ /* queue_ptr Queue control block pointer */ /* message Pointer to message to send */ /* size Size of the message */ /* actual_size Size of message received */ /* suspend Suspension option if empty */ /* */ /* OUTPUTS */ /* */ /* NU_INVALID_QUEUE Invalid queue pointer */ /* NU_INVALID_POINTER Invalid message pointer */ /* NU_INVALID_SIZE Invalid message size */ /* 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 function interface, */ /* resulting in version 1.1 */ /* */ /* 03-18-1994 Verified version 1.1 */ /* 05-24-1996 Changed the variable queue check */ /* from "message size not equal */ /* to pipe message size" to */ /* "message size greater than */ /* pipe message size" (SPR142). */ /* */ /*************************************************************************/ STATUS QUCE_Receive_From_Queue(NU_QUEUE *queue_ptr, VOID *message, UNSIGNED size, UNSIGNED *actual_size, UNSIGNED suspend) { QU_QCB *queue; STATUS status; /* Move input queue pointer into internal pointer. */ queue = (QU_QCB *) queue_ptr; /* Determine if there is an error with the queue pointer. */ if (queue == NU_NULL) /* Indicate that the queue pointer is invalid. */ status = NU_INVALID_QUEUE; else if (queue -> qu_id != QU_QUEUE_ID) /* Indicate that the queue pointer is invalid. */ status = NU_INVALID_QUEUE; else if (message == NU_NULL) /* Indicate that the pointer to the message is invalid. */ status = NU_INVALID_POINTER; else if (size == 0) /* Indicate that the message size is invalid. */ status = NU_INVALID_SIZE; else if ((queue -> qu_fixed_size) && (size != queue -> qu_message_size)) /* Indicate that the message size is invalid. */ status = NU_INVALID_SIZE; else if ((!queue -> qu_fixed_size) && (size > queue -> qu_message_size)) /* Indicate that the message size is invalid. */ status = NU_INVALID_SIZE; else if ((suspend) && (TCCE_Suspend_Error())) /* Indicate that the suspension is only allowed from a task thread. */ status = NU_INVALID_SUSPEND; else /* All the parameters are okay, call the actual function to receive a message from a queue. */ status = QUC_Receive_From_Queue(queue_ptr, message, size, actual_size, suspend); /* Return completion status. */ return(status); }