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cfe_sb_api.c
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cfe_sb_api.c
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/*
** GSC-18128-1, "Core Flight Executive Version 6.7"
**
** Copyright (c) 2006-2019 United States Government as represented by
** the Administrator of the National Aeronautics and Space Administration.
** All Rights Reserved.
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
/******************************************************************************
** File: cfe_sb_api.c
**
** Purpose:
** This file contains the source code for the SB API's.
**
** Notes: The following 4 terms have been, or are used in the cFS architecture and implementation
**
** StreamId - First 16 bits of CCSDS Space Packet Protocol (SPP) 133.0-B.1c2 Blue Book
** packet primary header. It contains the 3 bit Version Number, 1 bit Packet Type ID,
** 1 bit Secondary Header flag, and 11 bit Application Process ID
** It was used in earlier cFS implementaions and is defined here for historical reference
** It is NOT exposed to user applications.
**
** MsgId - Unique numeric message identifier within a mission namespace. It is used by cFS
** applications to the identify messages for publishing and subscribing
** It is used by the SB API and encoded in a mission defended way in the header of
** all cFS messages.
** It is exposed to all cFS applications
**
** ApId - CCSDS Application Process Id field in the primary header.
** It has default bit mask of 0x07FF and is part of the cFS message Id
** It should not be confused with the cFE Executive Services (ES) term appId which
** identifies the software application/component
** It is NOT exposed to user applications.
**
** MsgIdkey - This is a unique numeric key within a mission namespace that is used with
** cFS software bus internal structures.
** It is algorithmically created in a mission defined way from the MsgId to support
** efficient lookup and mapping implementations
** It is NOT exposed to user applications.
**
** Author: R.McGraw/SSI
** J.Wilmot/NASA
**
******************************************************************************/
/*
** Include Files
*/
#include "common_types.h"
#include "private/cfe_private.h"
#include "cfe_sb_events.h"
#include "cfe_sb_priv.h"
#include "cfe_sb.h"
#include "osapi.h"
#include "cfe_es.h"
#include "cfe_psp.h"
#include "cfe_error.h"
#include <string.h>
#include "private/cfe_core_resourceid_basevalues.h"
/*
* Macro to reflect size of PipeDepthStats Telemetry array -
* this may or may not be the same as CFE_SB_MSG_MAX_PIPES
*/
#define CFE_SB_TLM_PIPEDEPTHSTATS_SIZE (sizeof(CFE_SB_Global.StatTlmMsg.Payload.PipeDepthStats) / sizeof(CFE_SB_Global.StatTlmMsg.Payload.PipeDepthStats[0]))
/* Local structure for remove pipe callbacks */
typedef struct
{
const char *FullName; /* Full name (app.task) for error reporting */
CFE_SB_PipeId_t PipeId; /* Pipe id to remove */
} CFE_SB_RemovePipeCallback_t;
/*
* Function: CFE_SB_PipeId_ToIndex - See API and header file for details
*/
CFE_Status_t CFE_SB_PipeId_ToIndex(CFE_SB_PipeId_t PipeID, uint32 *Idx)
{
return CFE_ResourceId_ToIndex(CFE_RESOURCEID_UNWRAP(PipeID),
CFE_SB_PIPEID_BASE,
CFE_PLATFORM_SB_MAX_PIPES,
Idx);
}
/*
* Function: CFE_SB_CreatePipe - See API and header file for details
*/
int32 CFE_SB_CreatePipe(CFE_SB_PipeId_t *PipeIdPtr, uint16 Depth, const char *PipeName)
{
CFE_ES_AppId_t AppId;
CFE_ES_TaskId_t TskId;
osal_id_t SysQueueId;
int32 Status;
CFE_SB_PipeD_t *PipeDscPtr;
CFE_ResourceId_t PendingPipeId;
uint16 PendingEventId;
char FullName[(OS_MAX_API_NAME * 2)];
Status = CFE_SUCCESS;
SysQueueId = OS_OBJECT_ID_UNDEFINED;
PendingEventId = 0;
PipeDscPtr = NULL;
/*
* Get caller AppId.
*
* This is needed for both success and failure cases,
* as it is stored in the Pipe Descriptor on success,
* and used for events on failure, so get it now.
*/
CFE_ES_GetAppID(&AppId);
/* get callers TaskId */
CFE_ES_GetTaskID(&TskId);
/* check input parameters */
if((PipeIdPtr == NULL) || (Depth > OS_QUEUE_MAX_DEPTH) || (Depth == 0))
{
PendingEventId = CFE_SB_CR_PIPE_BAD_ARG_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else
{
/* Get an available Pipe Descriptor which must be done while locked */
CFE_SB_LockSharedData(__func__,__LINE__);
/* get first available entry in pipe table */
PendingPipeId = CFE_ResourceId_FindNext(CFE_SB_Global.LastPipeId, CFE_PLATFORM_SB_MAX_PIPES, CFE_SB_CheckPipeDescSlotUsed);
PipeDscPtr = CFE_SB_LocatePipeDescByID(CFE_SB_PIPEID_C(PendingPipeId));
/* if pipe table is full, send event and return error */
if(PipeDscPtr == NULL)
{
PendingEventId = CFE_SB_MAX_PIPES_MET_EID;
Status = CFE_SB_MAX_PIPES_MET;
}
else
{
/* Fully clear the entry, just in case of stale data */
memset(PipeDscPtr, 0, sizeof(*PipeDscPtr));
CFE_SB_PipeDescSetUsed(PipeDscPtr, CFE_RESOURCEID_RESERVED);
CFE_SB_Global.LastPipeId = PendingPipeId;
}
CFE_SB_UnlockSharedData(__func__,__LINE__);
}
if (Status == CFE_SUCCESS)
{
/* create the queue */
Status = OS_QueueCreate(&SysQueueId,PipeName,Depth,sizeof(CFE_SB_BufferD_t *),0);
if (Status == OS_SUCCESS)
{
/* just translate the RC to CFE */
Status = CFE_SUCCESS;
}
else
{
if (Status == OS_ERR_NAME_TAKEN)
{
PendingEventId = CFE_SB_CR_PIPE_NAME_TAKEN_EID;
}
else if (Status == OS_ERR_NO_FREE_IDS)
{
PendingEventId = CFE_SB_CR_PIPE_NO_FREE_EID;
}
else
{
/* some other unexpected error */
PendingEventId = CFE_SB_CR_PIPE_ERR_EID;
}
/* translate OSAL error to CFE error code */
Status = CFE_SB_PIPE_CR_ERR;
}
}
CFE_SB_LockSharedData(__func__,__LINE__);
if (Status == CFE_SUCCESS)
{
/* fill in the pipe table fields */
PipeDscPtr->SysQueueId = SysQueueId;
PipeDscPtr->MaxQueueDepth = Depth;
PipeDscPtr->AppId = AppId;
CFE_SB_PipeDescSetUsed(PipeDscPtr, PendingPipeId);
/* Increment the Pipes in use ctr and if it's > the high water mark,*/
/* adjust the high water mark */
CFE_SB_Global.StatTlmMsg.Payload.PipesInUse++;
if (CFE_SB_Global.StatTlmMsg.Payload.PipesInUse > CFE_SB_Global.StatTlmMsg.Payload.PeakPipesInUse)
{
CFE_SB_Global.StatTlmMsg.Payload.PeakPipesInUse = CFE_SB_Global.StatTlmMsg.Payload.PipesInUse;
}/* end if */
}
else
{
/*
* If a descriptor had been allocated, then free it.
*/
if (PipeDscPtr != NULL)
{
CFE_SB_PipeDescSetFree(PipeDscPtr);
PipeDscPtr = NULL;
}
PendingPipeId = CFE_RESOURCEID_UNDEFINED;
/*
* If there is a relevant error counter, increment it now
* while the global data is locked.
*/
switch(PendingEventId)
{
case CFE_SB_CR_PIPE_BAD_ARG_EID:
++CFE_SB_Global.HKTlmMsg.Payload.CreatePipeErrorCounter;
break;
default:
/* no counter */
break;
}
}
CFE_SB_UnlockSharedData(__func__,__LINE__);
/* Send any pending events now, after final unlock */
if (Status == CFE_SUCCESS)
{
/* send debug event */
CFE_EVS_SendEventWithAppID(CFE_SB_PIPE_ADDED_EID,CFE_EVS_EventType_DEBUG,CFE_SB_Global.AppId,
"Pipe Created:name %s,id %d,app %s",
PipeName, (int)CFE_ResourceId_ToInteger(PendingPipeId),
CFE_SB_GetAppTskName(TskId,FullName));
/* give the pipe handle to the caller */
*PipeIdPtr = CFE_SB_PIPEID_C(PendingPipeId);
}
else
{
switch(PendingEventId)
{
case CFE_SB_CR_PIPE_BAD_ARG_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_CR_PIPE_BAD_ARG_EID,CFE_EVS_EventType_ERROR,CFE_SB_Global.AppId,
"CreatePipeErr:Bad Input Arg:app=%s,ptr=0x%lx,depth=%d,maxdepth=%d",
CFE_SB_GetAppTskName(TskId,FullName),(unsigned long)PipeIdPtr,(int)Depth,OS_QUEUE_MAX_DEPTH);
break;
case CFE_SB_MAX_PIPES_MET_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_MAX_PIPES_MET_EID,CFE_EVS_EventType_ERROR,CFE_SB_Global.AppId,
"CreatePipeErr:Max Pipes(%d)In Use.app %s",
CFE_PLATFORM_SB_MAX_PIPES,CFE_SB_GetAppTskName(TskId,FullName));
break;
case CFE_SB_CR_PIPE_NAME_TAKEN_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_CR_PIPE_NAME_TAKEN_EID,CFE_EVS_EventType_ERROR,CFE_SB_Global.AppId,
"CreatePipeErr:OS_QueueCreate failed, name taken (app=%s, name=%s)",
CFE_SB_GetAppTskName(TskId,FullName), PipeName);
break;
case CFE_SB_CR_PIPE_NO_FREE_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_CR_PIPE_NO_FREE_EID,CFE_EVS_EventType_ERROR,CFE_SB_Global.AppId,
"CreatePipeErr:OS_QueueCreate failed, no free id's (app=%s)",
CFE_SB_GetAppTskName(TskId,FullName));
break;
case CFE_SB_CR_PIPE_ERR_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_CR_PIPE_ERR_EID,CFE_EVS_EventType_ERROR,CFE_SB_Global.AppId,
"CreatePipeErr:OS_QueueCreate returned %d,app %s",
(int)Status,CFE_SB_GetAppTskName(TskId,FullName));
break;
}
}
return Status;
}/* end CFE_SB_CreatePipe */
/*
* Function: CFE_SB_DeletePipe - See API and header file for details
*/
int32 CFE_SB_DeletePipe(CFE_SB_PipeId_t PipeId)
{
CFE_ES_AppId_t CallerId;
int32 Status = 0;
/* get the callers Application Id */
CFE_ES_GetAppID(&CallerId);
Status = CFE_SB_DeletePipeFull(PipeId,CallerId);
return Status;
}/* end CFE_SB_DeletePipe */
/******************************************************************************
** Function: CFE_SB_DeletePipeWithAppId()
**
** Purpose:
**
**
** Arguments:
** PipeId - The ID of the pipe to delete.
**
** Return:
** CFE_SUCCESS or cFE Error Code
*/
int32 CFE_SB_DeletePipeWithAppId(CFE_SB_PipeId_t PipeId, CFE_ES_AppId_t AppId)
{
int32 Status = 0;
Status = CFE_SB_DeletePipeFull(PipeId,AppId);
return Status;
}/* end CFE_SB_DeletePipeWithAppId */
/******************************************************************************
* Local callback helper for deleting a pipe from a route
*/
void CFE_SB_RemovePipeFromRoute(CFE_SBR_RouteId_t RouteId, void *ArgPtr)
{
CFE_SB_DestinationD_t *destptr;
CFE_SB_RemovePipeCallback_t *args;
args = (CFE_SB_RemovePipeCallback_t *)ArgPtr;
destptr = CFE_SB_GetDestPtr(RouteId, args->PipeId);
if (destptr != NULL)
{
CFE_SB_RemoveDest(RouteId, destptr);
}
}
/******************************************************************************
** Function: CFE_SB_DeletePipeFull()
**
** Purpose:
** Will unsubscribe to all routes associated with the given pipe id, then remove
** pipe from the pipe table.
**
** NOTE:This function cannot be called directly, it would not be semaphore protected
**
** Arguments:
** PipeId - The ID of the pipe to delete.
**
** Return:
** CFE_SUCCESS or cFE Error Code
*/
int32 CFE_SB_DeletePipeFull(CFE_SB_PipeId_t PipeId,CFE_ES_AppId_t AppId)
{
CFE_SB_PipeD_t *PipeDscPtr;
int32 Status;
CFE_ES_TaskId_t TskId;
CFE_SB_BufferD_t *BufDscPtr;
osal_id_t SysQueueId;
char FullName[(OS_MAX_API_NAME * 2)];
size_t BufDscSize;
CFE_SB_RemovePipeCallback_t Args;
uint16 PendingEventID;
Status = CFE_SUCCESS;
PendingEventID = 0;
SysQueueId = OS_OBJECT_ID_UNDEFINED;
BufDscPtr = NULL;
/* take semaphore to prevent a task switch during this call */
CFE_SB_LockSharedData(__func__,__LINE__);
/* check input parameter */
PipeDscPtr = CFE_SB_LocatePipeDescByID(PipeId);
if (!CFE_SB_PipeDescIsMatch(PipeDscPtr, PipeId))
{
PendingEventID = CFE_SB_DEL_PIPE_ERR1_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
/* check that the given AppId is the owner of the pipe */
else if (!CFE_RESOURCEID_TEST_EQUAL(AppId, PipeDscPtr->AppId))
{
PendingEventID = CFE_SB_DEL_PIPE_ERR2_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else
{
/* Remove the pipe from all routes */
Args.PipeId = PipeId;
Args.FullName = FullName;
CFE_SBR_ForEachRouteId(CFE_SB_RemovePipeFromRoute, &Args, NULL);
/*
* With the route removed there should be no new messages written to this pipe,
*
* but the pipe ID itself also needs to be invalidated now (before releasing lock) to make
* sure that no no subscriptions/routes can be added either.
*
* However we must first save certain state data for later deletion.
*/
SysQueueId = PipeDscPtr->SysQueueId;
BufDscPtr = PipeDscPtr->LastBuffer;
/*
* Mark entry as "reserved" so other resources can be deleted
* while the SB global is unlocked. This prevents other tasks
* from trying to use this Pipe Desc slot, and also should prevents
* any task from re-subscribing to this pipe.
*/
CFE_SB_PipeDescSetUsed(PipeDscPtr, CFE_RESOURCEID_RESERVED);
}
CFE_SB_UnlockSharedData(__func__,__LINE__);
/* remove any messages that might be on the pipe */
if (Status == CFE_SUCCESS)
{
while(true)
{
/* decrement refcount of any previous buffer */
if (BufDscPtr != NULL)
{
CFE_SB_LockSharedData(__func__,__LINE__);
CFE_SB_DecrBufUseCnt(BufDscPtr);
CFE_SB_UnlockSharedData(__func__,__LINE__);
BufDscPtr = NULL;
}
if (OS_QueueGet(SysQueueId, &BufDscPtr, sizeof(BufDscPtr), &BufDscSize, OS_CHECK) != OS_SUCCESS)
{
/* no more messages */
break;
}
}
/* Delete the underlying OS queue */
OS_QueueDelete(SysQueueId);
}
/*
* Final cleanup with global data locked
*/
CFE_SB_LockSharedData(__func__,__LINE__);
if (Status == CFE_SUCCESS)
{
CFE_SB_PipeDescSetFree(PipeDscPtr);
--CFE_SB_Global.StatTlmMsg.Payload.PipesInUse;
}
else if (PendingEventID != 0)
{
CFE_SB_Global.HKTlmMsg.Payload.CreatePipeErrorCounter++;
}
CFE_SB_UnlockSharedData(__func__,__LINE__);
if (Status == CFE_SUCCESS)
{
/*
* Get the app name of the actual pipe owner for the event string
* as this may be different than the task doing the deletion.
*
* Note: If this fails (e.g. bad AppID, it returns an empty string
*/
CFE_ES_GetAppName(FullName, AppId, sizeof(FullName));
CFE_EVS_SendEventWithAppID(CFE_SB_PIPE_DELETED_EID,CFE_EVS_EventType_DEBUG,CFE_SB_Global.AppId,
"Pipe Deleted:id %d,owner %s",(int)CFE_RESOURCEID_TO_ULONG(PipeId), FullName);
}
else
{
/* get TaskId and name of caller for events */
CFE_ES_GetTaskID(&TskId);
CFE_SB_GetAppTskName(TskId, FullName);
switch (PendingEventID)
{
case CFE_SB_DEL_PIPE_ERR1_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_DEL_PIPE_ERR1_EID,CFE_EVS_EventType_ERROR,CFE_SB_Global.AppId,
"Pipe Delete Error:Bad Argument,PipedId %ld,Requestor %s",
CFE_RESOURCEID_TO_ULONG(PipeId),FullName);
break;
case CFE_SB_DEL_PIPE_ERR2_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_DEL_PIPE_ERR2_EID,CFE_EVS_EventType_ERROR,CFE_SB_Global.AppId,
"Pipe Delete Error:Caller(%s) is not the owner of pipe %ld",
FullName, CFE_RESOURCEID_TO_ULONG(PipeId));
break;
}
}
return Status;
}/* end CFE_SB_DeletePipeFull */
/*
* Function: CFE_SB_SetPipeOpts - See API and header file for details
*/
int32 CFE_SB_SetPipeOpts(CFE_SB_PipeId_t PipeId, uint8 Opts)
{
CFE_SB_PipeD_t *PipeDscPtr;
CFE_ES_AppId_t AppID;
CFE_ES_TaskId_t TskId;
uint16 PendingEventID;
int32 Status;
char FullName[(OS_MAX_API_NAME * 2)];
PendingEventID = 0;
Status = CFE_ES_GetAppID(&AppID);
if(Status != CFE_SUCCESS)
{
/* shouldn't happen... */
return Status;
}
/* take semaphore to prevent a task switch during this call */
CFE_SB_LockSharedData(__func__,__LINE__);
/* check input parameter */
PipeDscPtr = CFE_SB_LocatePipeDescByID(PipeId);
if(!CFE_SB_PipeDescIsMatch(PipeDscPtr, PipeId))
{
PendingEventID = CFE_SB_SETPIPEOPTS_ID_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
/* check that the caller AppId is the owner of the pipe */
else if( !CFE_RESOURCEID_TEST_EQUAL(AppID, PipeDscPtr->AppId) )
{
PendingEventID = CFE_SB_SETPIPEOPTS_OWNER_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else
{
PipeDscPtr->Opts = Opts;
}
/* If anything went wrong, increment the error counter before unlock */
if (Status != CFE_SUCCESS)
{
CFE_SB_Global.HKTlmMsg.Payload.PipeOptsErrorCounter++;
}
CFE_SB_UnlockSharedData(__func__,__LINE__);
/* Send events after unlocking SB */
if (Status == CFE_SUCCESS)
{
/* get AppID of caller for events */
CFE_ES_GetAppName(FullName, AppID, sizeof(FullName));
CFE_EVS_SendEventWithAppID(CFE_SB_SETPIPEOPTS_EID,CFE_EVS_EventType_DEBUG,CFE_SB_Global.AppId,
"Pipe opts set:id %lu,owner %s, opts=0x%02x",CFE_RESOURCEID_TO_ULONG(PipeId), FullName, (unsigned int)Opts);
}
else
{
/* get TaskId of caller for events */
CFE_ES_GetTaskID(&TskId);
switch (PendingEventID)
{
case CFE_SB_SETPIPEOPTS_ID_ERR_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_SETPIPEOPTS_ID_ERR_EID,CFE_EVS_EventType_ERROR,CFE_SB_Global.AppId,
"Pipe Opts Error:Bad Argument,PipedId %lu,Requestor %s",
CFE_RESOURCEID_TO_ULONG(PipeId),CFE_SB_GetAppTskName(TskId,FullName));
break;
case CFE_SB_SETPIPEOPTS_OWNER_ERR_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_SETPIPEOPTS_OWNER_ERR_EID,CFE_EVS_EventType_ERROR,CFE_SB_Global.AppId,
"Pipe Opts Set Error: Caller(%s) is not the owner of pipe %lu",
CFE_SB_GetAppTskName(TskId,FullName),CFE_RESOURCEID_TO_ULONG(PipeId));
break;
}
}
return Status;
}/* end CFE_SB_SetPipeOpts */
/*
* Function: CFE_SB_GetPipeOpts - See API and header file for details
*/
int32 CFE_SB_GetPipeOpts(CFE_SB_PipeId_t PipeId, uint8 *OptsPtr)
{
int32 Status;
CFE_ES_TaskId_t TskId;
char FullName[(OS_MAX_API_NAME * 2)];
uint16 PendingEventID;
CFE_SB_PipeD_t *PipeDscPtr;
PendingEventID = 0;
Status = CFE_SUCCESS;
/* take semaphore to prevent a task switch during this call */
CFE_SB_LockSharedData(__func__,__LINE__);
/* check input parameter */
PipeDscPtr = CFE_SB_LocatePipeDescByID(PipeId);
if (!CFE_SB_PipeDescIsMatch(PipeDscPtr, PipeId))
{
PendingEventID = CFE_SB_GETPIPEOPTS_ID_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else if (OptsPtr == NULL)
{
PendingEventID = CFE_SB_GETPIPEOPTS_PTR_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else
{
*OptsPtr = PipeDscPtr->Opts;
}
/* If anything went wrong, increment the error counter before unlock */
if (Status != CFE_SUCCESS)
{
CFE_SB_Global.HKTlmMsg.Payload.PipeOptsErrorCounter++;
}
CFE_SB_UnlockSharedData(__func__,__LINE__);
/* Send events after unlocking SB */
if (Status == CFE_SUCCESS)
{
CFE_EVS_SendEventWithAppID(CFE_SB_GETPIPEOPTS_EID,CFE_EVS_EventType_DEBUG,CFE_SB_Global.AppId,
"Pipe opts get:id %lu, opts=0x%02x",CFE_RESOURCEID_TO_ULONG(PipeId), (unsigned int)*OptsPtr);
}
else
{
/* get TaskId of caller for events */
CFE_ES_GetTaskID(&TskId);
switch(PendingEventID)
{
case CFE_SB_GETPIPEOPTS_PTR_ERR_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_GETPIPEOPTS_PTR_ERR_EID, CFE_EVS_EventType_ERROR, CFE_SB_Global.AppId,
"Pipe Opts Error:Bad Argument,Requestor %s",
CFE_SB_GetAppTskName(TskId,FullName));
break;
case CFE_SB_GETPIPEOPTS_ID_ERR_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_GETPIPEOPTS_ID_ERR_EID, CFE_EVS_EventType_ERROR, CFE_SB_Global.AppId,
"Pipe Opts Error:Bad Argument,PipedId %lu,Requestor %s",
CFE_RESOURCEID_TO_ULONG(PipeId),CFE_SB_GetAppTskName(TskId,FullName));
break;
}
}
return Status;
}/* end CFE_SB_GetPipeOpts */
/*
* Function: CFE_SB_GetPipeName - See API and header file for details
*/
int32 CFE_SB_GetPipeName(char *PipeNameBuf, size_t PipeNameSize, CFE_SB_PipeId_t PipeId)
{
int32 Status;
CFE_ES_TaskId_t TskId;
char FullName[(OS_MAX_API_NAME * 2)];
uint16 PendingEventID;
CFE_SB_PipeD_t *PipeDscPtr;
osal_id_t SysQueueId;
PendingEventID = 0;
Status = CFE_SUCCESS;
SysQueueId = OS_OBJECT_ID_UNDEFINED;
/* take semaphore to prevent a task switch during this call */
CFE_SB_LockSharedData(__func__,__LINE__);
/* check input parameter */
PipeDscPtr = CFE_SB_LocatePipeDescByID(PipeId);
if (!CFE_SB_PipeDescIsMatch(PipeDscPtr, PipeId))
{
PendingEventID = CFE_SB_GETPIPENAME_ID_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else
{
SysQueueId = PipeDscPtr->SysQueueId;
}
CFE_SB_UnlockSharedData(__func__,__LINE__);
if (Status == CFE_SUCCESS)
{
if (PipeNameBuf == NULL || PipeNameSize == 0)
{
PendingEventID = CFE_SB_GETPIPENAME_NULL_PTR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else
{
Status = OS_GetResourceName(SysQueueId, PipeNameBuf, PipeNameSize);
if (Status == OS_SUCCESS)
{
Status = CFE_SUCCESS;
}
else
{
PendingEventID = CFE_SB_GETPIPENAME_ID_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
}
}
/* Send Events */
if (Status == CFE_SUCCESS)
{
CFE_EVS_SendEventWithAppID(CFE_SB_GETPIPENAME_EID,
CFE_EVS_EventType_DEBUG,CFE_SB_Global.AppId,
"GetPipeName name=%s id=%lu",
PipeNameBuf, CFE_RESOURCEID_TO_ULONG(PipeId));
}
else
{
CFE_ES_GetTaskID(&TskId);
switch(PendingEventID)
{
case CFE_SB_GETPIPENAME_NULL_PTR_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_GETPIPENAME_NULL_PTR_EID, CFE_EVS_EventType_ERROR,
CFE_SB_Global.AppId, "Pipe Name Error:NullPtr,Requestor %s",
CFE_SB_GetAppTskName(TskId,FullName));
break;
case CFE_SB_GETPIPENAME_ID_ERR_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_GETPIPENAME_ID_ERR_EID, CFE_EVS_EventType_ERROR,
CFE_SB_Global.AppId, "Pipe Id Error:Bad Argument,Id=%lu,Requestor %s",
CFE_RESOURCEID_TO_ULONG(PipeId),CFE_SB_GetAppTskName(TskId,FullName));
break;
}
if (PipeNameBuf != NULL && PipeNameSize > 0)
{
memset(PipeNameBuf, 0, PipeNameSize);
}
}
return Status;
}/* end CFE_SB_GetPipeName */
/*
* Function: CFE_SB_GetPipeIdByName - See API and header file for details
*/
int32 CFE_SB_GetPipeIdByName(CFE_SB_PipeId_t *PipeIdPtr, const char *PipeName)
{
int32 Status;
CFE_ES_TaskId_t TskId;
uint32 Idx;
char FullName[(OS_MAX_API_NAME * 2)];
uint16 PendingEventID;
CFE_SB_PipeD_t *PipeDscPtr;
osal_id_t SysQueueId;
PendingEventID = 0;
Status = CFE_SUCCESS;
SysQueueId = OS_OBJECT_ID_UNDEFINED;
if(PipeName == NULL || PipeIdPtr == NULL)
{
PendingEventID = CFE_SB_GETPIPEIDBYNAME_NULL_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else
{
/* Get QueueID from OSAL */
Status = OS_QueueGetIdByName(&SysQueueId, PipeName);
if (Status == OS_SUCCESS)
{
Status = CFE_SUCCESS;
}
else
{
PendingEventID = CFE_SB_GETPIPEIDBYNAME_NAME_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
}
CFE_SB_LockSharedData(__func__,__LINE__);
if (Status == CFE_SUCCESS)
{
Idx = CFE_PLATFORM_SB_MAX_PIPES;
PipeDscPtr = CFE_SB_Global.PipeTbl;
while(true)
{
if (Idx == 0)
{
PendingEventID = CFE_SB_GETPIPEIDBYNAME_NAME_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
break;
}
if (OS_ObjectIdEqual(PipeDscPtr->SysQueueId, SysQueueId))
{
/* grab the ID before we release the lock */
*PipeIdPtr = CFE_SB_PipeDescGetID(PipeDscPtr);
break;
}/* end if */
--Idx;
++PipeDscPtr;
}
}
if (Status != CFE_SUCCESS)
{
++CFE_SB_Global.HKTlmMsg.Payload.GetPipeIdByNameErrorCounter;
}
CFE_SB_UnlockSharedData(__func__,__LINE__);
/* Send Events */
if (Status == CFE_SUCCESS)
{
CFE_EVS_SendEventWithAppID(CFE_SB_GETPIPEIDBYNAME_EID,
CFE_EVS_EventType_DEBUG,CFE_SB_Global.AppId,
"PipeIdByName name=%s id=%lu",
PipeName, CFE_RESOURCEID_TO_ULONG(*PipeIdPtr));
}
else
{
/* get TaskId of caller for events */
CFE_ES_GetTaskID(&TskId);
switch(PendingEventID)
{
case CFE_SB_GETPIPEIDBYNAME_NULL_ERR_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_GETPIPEIDBYNAME_NULL_ERR_EID,
CFE_EVS_EventType_ERROR, CFE_SB_Global.AppId,
"Pipe ID By Name Error:Bad Argument,Requestor %s",
CFE_SB_GetAppTskName(TskId,FullName));
break;
case CFE_SB_GETPIPEIDBYNAME_NAME_ERR_EID:
CFE_EVS_SendEventWithAppID(CFE_SB_GETPIPEIDBYNAME_NAME_ERR_EID,
CFE_EVS_EventType_ERROR, CFE_SB_Global.AppId,
"Pipe ID By Name Error:Bad Argument,Requestor %s",
CFE_SB_GetAppTskName(TskId,FullName));
break;
}
}
return Status;
}/* end CFE_SB_GetPipeIdByName */
/*
* Function: CFE_SB_SubscribeEx - See API and header file for details
*/
int32 CFE_SB_SubscribeEx(CFE_SB_MsgId_t MsgId,
CFE_SB_PipeId_t PipeId,
CFE_SB_Qos_t Quality,
uint16 MsgLim)
{
return CFE_SB_SubscribeFull(MsgId,PipeId,Quality,MsgLim,(uint8)CFE_SB_MSG_GLOBAL);
}/* end CFE_SB_SubscribeEx */
/*
* Function: CFE_SB_SubscribeLocal - See API and header file for details
*/
int32 CFE_SB_SubscribeLocal(CFE_SB_MsgId_t MsgId,
CFE_SB_PipeId_t PipeId,
uint16 MsgLim)
{
return CFE_SB_SubscribeFull(MsgId,PipeId,CFE_SB_DEFAULT_QOS,MsgLim,
(uint8)CFE_SB_MSG_LOCAL);
}/* end CFE_SB_SubscribeLocal */
/*
* Function: CFE_SB_Subscribe - See API and header file for details
*/
int32 CFE_SB_Subscribe(CFE_SB_MsgId_t MsgId,
CFE_SB_PipeId_t PipeId)
{
return CFE_SB_SubscribeFull(MsgId,PipeId,CFE_SB_DEFAULT_QOS,
(uint16)CFE_PLATFORM_SB_DEFAULT_MSG_LIMIT,
(uint8)CFE_SB_MSG_GLOBAL);
}/* end CFE_SB_Subscribe */
/******************************************************************************
** Name: CFE_SB_SubscribeFull
**
** Purpose: CFE Internal API used to subscribe to a message. Contains an input
** parameter for all possible subscription choices. This function is
** called by CFE_SB_SubscribeEx, CFE_SB_Subscribe and
** CFE_SB_SubscribeLocal.
**
** Assumptions, External Events, and Notes:
** Has the same typedef as the message Id
**
** Date Written:
** 04/25/2005
**
** Input Arguments:
** MsgId - Mission unique identifier for the message being requested
** PipeId - The Pipe ID to send the message to
** Quality - Quality of Service (Qos) - priority and reliability
** MsgLim - Max number of messages, with this MsgId, allowed on the
** pipe at any time.
** Scope - Local subscription or broadcasted to peers
**
** Output Arguments:
** None
**
** Return Values:
** Status
**
******************************************************************************/
int32 CFE_SB_SubscribeFull(CFE_SB_MsgId_t MsgId,
CFE_SB_PipeId_t PipeId,
CFE_SB_Qos_t Quality,
uint16 MsgLim,
uint8 Scope)
{
CFE_SBR_RouteId_t RouteId;
CFE_SB_PipeD_t *PipeDscPtr;
int32 Status;
CFE_ES_TaskId_t TskId;
CFE_ES_AppId_t AppId;
CFE_SB_DestinationD_t *DestPtr;
uint32 DestCount;
char FullName[(OS_MAX_API_NAME * 2)];
char PipeName[OS_MAX_API_NAME];
uint32 Collisions;
uint16 PendingEventID;
PendingEventID = 0;
Status = CFE_SUCCESS;
DestPtr = NULL;
Collisions = 0;
/* get the callers Application Id */
CFE_ES_GetAppID(&AppId);
/* get TaskId of caller for events */
CFE_ES_GetTaskID(&TskId);
/* take semaphore to prevent a task switch during this call */
CFE_SB_LockSharedData(__func__,__LINE__);
/* check that the pipe has been created */
PipeDscPtr = CFE_SB_LocatePipeDescByID(PipeId);
if (!CFE_SB_PipeDescIsMatch(PipeDscPtr, PipeId))
{
PendingEventID = CFE_SB_SUB_INV_PIPE_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else if (!CFE_RESOURCEID_TEST_EQUAL(PipeDscPtr->AppId, AppId))
{
PendingEventID = CFE_SB_SUB_INV_CALLER_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
/* check message id key and scope */
else if (!CFE_SB_IsValidMsgId(MsgId) || (Scope > 1))
{
PendingEventID = CFE_SB_SUB_ARG_ERR_EID;
Status = CFE_SB_BAD_ARGUMENT;
}
else
{
/* Get the route, adding one if it does not exist already */
RouteId = CFE_SBR_GetRouteId(MsgId);
if (!CFE_SBR_IsValidRouteId(RouteId))
{
/* Add the route */
RouteId = CFE_SBR_AddRoute(MsgId, &Collisions);
/* if all routing table elements are used, send event */
if (!CFE_SBR_IsValidRouteId(RouteId))
{
PendingEventID = CFE_SB_MAX_MSGS_MET_EID;
Status = CFE_SB_MAX_MSGS_MET;
}
else
{
/* Increment the MsgIds in use ctr and if it's > the high water mark,*/
/* adjust the high water mark */
CFE_SB_Global.StatTlmMsg.Payload.MsgIdsInUse++;
if(CFE_SB_Global.StatTlmMsg.Payload.MsgIdsInUse > CFE_SB_Global.StatTlmMsg.Payload.PeakMsgIdsInUse)