- Commit of new status monitor
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koennecke
322
statemon.c
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322
statemon.c
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/**
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* This is a state monitor. It collects all the start and stop messages
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* from the device executor and from scan and batch commands. Clients can
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* listen to this in order to figure out what is actually going on in a
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* given SICS installation. This might in the end supersede the status code
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* managment in status.c
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*
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* copyright: see file COPYRIGHT
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*
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* Mark Koennecke, January 2007
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*/
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#include <sics.h>
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#include "exeman.h"
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#include "scan.h"
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#include "scan.i"
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#include "stptok.h"
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#include "statemon.h"
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#include "sicshipadaba.h"
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/*==========================================================================*/
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typedef struct __STATEMON {
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pObjectDescriptor pDes;
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pICallBack pCall;
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}StateMon;
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/*============================ Callbacks =================================*/
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static int DevexecCallback(int iEvent, void *text, void *pData,
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commandContext cc){
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char pDevice[132];
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int eventCode;
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pStateMon self = (pStateMon)pData;
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memset(pDevice,0,132);
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if(iEvent == DRIVSTAT){
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stptok(text,pDevice,131," ");
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if(strstr(text,"started") != NULL){
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eventCode = STSTART;
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} else if(strstr(text,"finished") != NULL) {
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eventCode = STEND;
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} else {
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printf("Unrecognized event text from devexec in statemon.c: %s\n",
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text);
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return 0;
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}
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if(self != NULL){
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InvokeCallBack(self->pCall,eventCode,pDevice);
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}
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}
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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static int StateMonScanInterest(int iEvent, void *pEventData, void *pUser,
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commandContext cc){
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pScanData pScan = NULL;
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pStateMon self = (pStateMon)pUser;
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pScan = (pScanData)pEventData;
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if(pScan == NULL || self == NULL){
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printf("Bad StateMonScanInterst in statemon\n");
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return 0;
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}
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if(iEvent == SCANSTART){
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InvokeCallBack(self->pCall,STSTART,pScan->objectName);
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return 1;
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}else if(iEvent == SCANEND){
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InvokeCallBack(self->pCall,STEND,pScan->objectName);
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return 1;
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}
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return 1;
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}
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/*--------------------------------------------------------------------------*/
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static int ExeCallback(int iEvent, void *pEvent, void *pUser,
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commandContext cc){
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pStateMon self = (pStateMon)pUser;
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char *name = (char *)pEvent;
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char pBueffel[131];
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if(self == NULL || name == NULL){
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printf("Bad ExeCallback in statemon\n");
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return 0;
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}
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if(iEvent == BATCHSTART){
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snprintf(pBueffel,131,"exe %s",name);
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InvokeCallBack(self->pCall,STSTART,pBueffel);
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return 1;
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}
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if(iEvent == BATCHEND){
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snprintf(pBueffel,131,"exe %s",name);
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InvokeCallBack(self->pCall,STEND,pBueffel);
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return 1;
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}
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return 0;
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}
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/*=============== user callbacks ============================================*/
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static int StateInterest(int iEvent, void *pEvent, void *pUser,
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commandContext cc){
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SConnection *pCon = (SConnection *)pUser;
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char *device = (char *)pEvent;
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char buffer[256];
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if(pCon == NULL || device == NULL){
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printf("Bad StateInterest in statemon\n");
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return 0;
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}
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if(iEvent == STSTART){
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snprintf(buffer,255,"STARTED = %s", device);
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SCWriteInContext(pCon,buffer,eWarning,cc);
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}
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if(iEvent == STEND){
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snprintf(buffer,255,"FINISH = %s", device);
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SCWriteInContext(pCon,buffer,eWarning,cc);
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}
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return 1;
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}
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/*--------------------------------------------------------------------------*/
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static pHdb recurseInterestNode(pHdb current, char *pDevice){
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char pSicsdev[131], pAlias[132];
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pHdb result = NULL;
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char *alias = NULL, *pPtr = NULL;
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memset(pSicsdev,0,132);
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memset(pAlias,0,132);
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if(current != NULL){
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if(GetHdbProperty(current,"sicsdev",pSicsdev,131) != 0){
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strtolower(pSicsdev);
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if(strcmp(pSicsdev,pDevice) == 0){
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return current;
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}
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/*
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* try to look for aliases, too
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*/
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alias = FindAliases(pServ->pSics,pSicsdev);
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pPtr = alias;
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while((pPtr = stptok(pPtr,pAlias,131,",")) != NULL){
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if(strcmp(pAlias,pDevice) == 0){
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return current;
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}
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}
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if(alias != NULL){
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free(alias);
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}
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}
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current = current->child;
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while(current != NULL){
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result = recurseInterestNode(current, pDevice);
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if(result != NULL){
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return result;
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}
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current = current->next;
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}
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}
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return NULL;
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}
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/*--------------------------------------------------------------------------*/
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static pHdb locateInterestNode(char *device){
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char pDevice[132], pSicsdev[132];
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pHdb current = NULL, result = NULL;
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memset(pDevice,0,132);
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memset(pSicsdev,0,132);
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/*
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* this is to strip off exes batch file name
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*/
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stptok(device,pDevice,131," ");
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strtolower(pDevice);
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current = GetHipadabaRoot();
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return recurseInterestNode(current,pDevice);
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}
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/*--------------------------------------------------------------------------*/
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static int StateHdbInterest(int iEvent, void *pEvent, void *pUser,
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commandContext cc){
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SConnection *pCon = (SConnection *)pUser;
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char *device = (char *)pEvent, *path = NULL;
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char buffer[1024];
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pHdb node = NULL;
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if(pCon == NULL || device == NULL){
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printf("Bad StateHdbInterest in statemon\n");
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return 0;
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}
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node = locateInterestNode(device);
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if(node != NULL){
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path = GetHipadabaPath(node);
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if(iEvent == STSTART){
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snprintf(buffer,1024,"%s STARTED", path);
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SCWriteInContext(pCon,buffer,eWarning,cc);
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}
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if(iEvent == STEND){
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snprintf(buffer,1024,"%s FINISH", path);
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SCWriteInContext(pCon,buffer,eWarning,cc);
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}
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}
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return 1;
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}
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/*====================== interpreter interface ==============================*/
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static void killStateMon(void *pData){
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pStateMon self = NULL;
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self = (pStateMon)pData;
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if(self != NULL){
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if(self->pDes != NULL){
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DeleteDescriptor(self->pDes);
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}
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if(self->pCall != NULL){
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DeleteCallBackInterface(self->pCall);
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}
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free(self);
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}
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}
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/*---------------------------------------------------------------------------*/
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int StateMonFactory(SConnection *pCon, SicsInterp *pSics, void *pData,
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int argc, char *argv[]){
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pStateMon pNew = NULL;
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commandContext cc;
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pICallBack target = NULL;
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void *pPtr = NULL, *exe = NULL, *pDevexec = NULL;
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exe = FindCommandData(pSics,"exe", "ExeManager");
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pDevexec = FindCommandData(pSics,"stopexe","DeviceExecutor");
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if(exe == NULL || pDevexec == NULL){
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SCWrite(pCon,
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"ERROR: both the device executor and the batch file module must be installed before initialising statemon",
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eError);
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return 0;
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}
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/*
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* generate data structures
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*/
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strcpy(cc.deviceID,"statemon");
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cc.transID = -120;
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pNew = (pStateMon)malloc(sizeof(StateMon));
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if(pNew == NULL){
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SCWrite(pCon,"ERROR: out of memory creating StateMon",eError);
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return 0;
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}
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memset(pNew,0,sizeof(StateMon));
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pNew->pDes = CreateDescriptor("statemon");
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pNew->pCall = CreateCallBackInterface();
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if(pNew->pDes == NULL || pNew->pCall == NULL){
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SCWrite(pCon,"ERROR: out of memory creating StateMon",eError);
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return 0;
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}
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/*
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* register callbacks
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*/
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target = GetCallbackInterface(pDevexec);
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assert(target != NULL);
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RegisterCallback(target,cc,DRIVSTAT,DevexecCallback,pNew,NULL);
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target = GetCallbackInterface(exe);
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assert(target != NULL);
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RegisterCallback(target,cc,BATCHSTART,ExeCallback,pNew,NULL);
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RegisterCallback(target,cc,BATCHEND,ExeCallback,pNew,NULL);
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if(argc > 1) {
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pPtr = FindCommandData(pSics,argv[1],"ScanObject");
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if(pPtr == NULL){
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SCWrite(pCon,"ERROR: failked to locate scan object",eError);
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} else {
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target = GetCallbackInterface(pPtr);
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assert(target != NULL);
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RegisterCallback(target,cc,SCANSTART,StateMonScanInterest,pNew,NULL);
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RegisterCallback(target,cc,SCANEND,StateMonScanInterest,pNew,NULL);
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}
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}
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/*
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* TODO: add kill functions
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*/
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AddCommand(pSics,"statemon",StateMonAction,killStateMon,pNew);
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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int StateMonAction(SConnection *pCon, SicsInterp *pSics, void *pData,
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int argc, char *argv[]){
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long lID;
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int i;
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pStateMon self = NULL;
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self = (pStateMon)pData;
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assert(self != NULL);
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if(argc < 2){
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SCWrite(pCon,"ERROR: not enough arguments to statemon",eError);
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return 0;
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}
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strtolower(argv[1]);
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if(strcmp(argv[1],"interest") == 0){
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lID = RegisterCallback(self->pCall, SCGetContext(pCon),STSTART, StateInterest,
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pCon, NULL);
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SCRegister(pCon,pSics, self->pCall,lID);
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lID = RegisterCallback(self->pCall, SCGetContext(pCon),STEND, StateInterest,
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pCon, NULL);
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SCRegister(pCon,pSics, self->pCall,lID);
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SCSendOK(pCon);
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return 1;
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} else if(strcmp(argv[1],"uninterest") == 0) {
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for(i = 0; i < 2; i++){
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lID = SCgetCallbackID(pCon,self->pCall);
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if(lID >= 0){
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RemoveCallback(self->pCall,lID);
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SCUnregisterID(pCon,lID);
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}
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}
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SCSendOK(pCon);
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return 1;
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} else if(strcmp(argv[1],"hdbinterest") == 0){
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lID = RegisterCallback(self->pCall, SCGetContext(pCon),STSTART, StateHdbInterest,
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pCon, NULL);
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SCRegister(pCon,pSics, self->pCall,lID);
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lID = RegisterCallback(self->pCall, SCGetContext(pCon),STEND, StateHdbInterest,
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pCon, NULL);
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SCRegister(pCon,pSics, self->pCall,lID);
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SCSendOK(pCon);
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return 1;
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}
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SCWrite(pCon,"ERROR: keyword not recognized",eError);
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return 0;
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}
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