304 lines
8.6 KiB
C
304 lines
8.6 KiB
C
/*--------------------------------------------------------------------------
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Handling of status files
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Mark Koennecke, November 1996
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Updated in order to prevent status floods
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Mark Koennecke, July 2004
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Reworked restore to keep parameters from uninitialized devices
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Mark Koennecke, November 2007
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Copyright:
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Labor fuer Neutronenstreuung
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Paul Scherrer Institut
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CH-5423 Villigen-PSI
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The authors hereby grant permission to use, copy, modify, distribute,
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and license this software and its documentation for any purpose, provided
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that existing copyright notices are retained in all copies and that this
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notice is included verbatim in any distributions. No written agreement,
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license, or royalty fee is required for any of the authorized uses.
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Modifications to this software may be copyrighted by their authors
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and need not follow the licensing terms described here, provided that
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the new terms are clearly indicated on the first page of each file where
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they apply.
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IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
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FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
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DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE
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IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
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NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
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MODIFICATIONS.
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-----------------------------------------------------------------------------*/
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#include <stdlib.h>
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#include <assert.h>
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#include <time.h>
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#include "fortify.h"
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#include <string.h>
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#include "sics.h"
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#include "statusfile.h"
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#include "lld_str.h"
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#include "lld.h"
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#include "exebuf.h"
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static int parameterChange = 0;
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/*-----------------------------------------------------------------------*/
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int StatusFileTask(void *data)
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{
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char *pFile = NULL;
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if (!hasRestored())
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return 1;
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if (parameterChange) {
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parameterChange = 0;
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assert(pServ->pSics);
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pFile = IFindOption(pSICSOptions, "statusfile");
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if (pFile) {
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WriteSicsStatus(pServ->pSics, pFile, 0);
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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 motorSave = 0;
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/*-----------------------------------------------------------------------*/
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int BackupStatus(SConnection * pCon, SicsInterp * pSics, void *pData,
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int argc, char *argv[])
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{
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int iRet;
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char pBueffel[512];
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char *pFile = NULL;
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assert(pSics);
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assert(pCon);
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if (argc < 2) {
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pFile = IFindOption(pSICSOptions, "statusfile");
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if (pFile) {
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iRet = WriteSicsStatus(pSics, pFile, motorSave);
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} else {
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SCWrite(pCon, "ERROR: No filename given for backup, Aborted.",
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eError);
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return 0;
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}
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} else {
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if (strcmp(argv[1], "motorSave") == 0) {
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if (motorSave == 1)
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motorSave = 0;
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else
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motorSave = 1;
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snprintf(pBueffel,sizeof(pBueffel)-1, "New Value of motorSave= %d\n", motorSave);
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SCWrite(pCon, pBueffel, eValue);
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return 1;
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} else {
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iRet = WriteSicsStatus(pSics, argv[1], motorSave);
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}
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}
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if (!iRet) {
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snprintf(pBueffel,sizeof(pBueffel)-1, "ERROR: could not open file %s\n", argv[1]);
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SCWrite(pCon, pBueffel, eError);
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return 0;
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}
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SCSendOK(pCon);
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return 1;
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}
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/*---------------------------------------------------------------------*/
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static int restoreOccurred = 0;
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int hasRestored()
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{
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return restoreOccurred;
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}
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/*---------------------------------------------------------------------------*/
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typedef struct {
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pObjectDescriptor pDes;
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int errList;
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} RestoreObj, *pRestoreObj;
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/*---------------------------------------------------------------------------*/
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static void killRestore(void *data)
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{
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pRestoreObj self = (pRestoreObj) data;
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if (self == NULL) {
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return;
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}
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if (self->errList >= 0) {
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LLDdeleteBlob(self->errList);
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}
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if (self->pDes != NULL) {
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DeleteDescriptor(self->pDes);
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}
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free(self);
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}
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/*--------------------------------------------------------------------------*/
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static int SaveRestore(void *obj, char *name, FILE * fd)
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{
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int status;
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char buffer[1024];
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pRestoreObj self = (pRestoreObj) obj;
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if (self == NULL) {
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return 0;
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}
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fprintf(fd,
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"\n#--- BEGIN (commands producing errors on last restore)\n");
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status = LLDnodePtr2First(self->errList);
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while (status == 1) {
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LLDstringData(self->errList, buffer);
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fprintf(fd, "%s", buffer);
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status = LLDnodePtr2Next(self->errList);
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}
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fprintf(fd, "#--- END (commands producing errors on last restore)\n\n");
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return 1;
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}
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/*---------------------------------------------------------------------------*/
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int InstallBckRestore(SConnection * pCon, SicsInterp * pSics)
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{
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pRestoreObj pNew = NULL;
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pNew = malloc(sizeof(RestoreObj));
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if (pNew == NULL) {
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SCWrite(pCon,
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"ERROR: no memory to create restore object! This is SERIOUS!!!",
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eError);
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return 0;
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}
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pNew->pDes = CreateDescriptor("BckRestore");
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pNew->errList = LLDstringCreate();
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if (pNew->pDes == NULL || pNew->errList < 0) {
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SCWrite(pCon,
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"ERROR: no memory to create restore object! This is SERIOUS!!!",
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eError);
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return 0;
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}
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pNew->pDes->SaveStatus = SaveRestore;
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AddCommand(pSics, "Backup", BackupStatus, NULL, NULL);
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AddCommand(pSics, "Restore", RestoreStatus, killRestore, pNew);
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return 1;
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}
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/*-----------------------------------------------------------------------*/
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static int listRestoreErr(pRestoreObj self, SConnection * pCon)
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{
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char buffer[1024];
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int status;
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pDynString data = NULL;
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data = CreateDynString(256,256);
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if(data == NULL){
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SCWrite(pCon,"ERROR: out of memory listing errors",eError);
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return 0;
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}
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status = LLDnodePtr2First(self->errList);
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while (status == 1) {
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LLDstringData(self->errList, buffer);
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DynStringConcatLine(data,buffer);
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status = LLDnodePtr2Next(self->errList);
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}
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SCWrite(pCon, GetCharArray(data), eValue);
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DeleteDynString(data);
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return 1;
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}
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/*-----------------------------------------------------------------------*/
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int RestoreStatus(SConnection * pCon, SicsInterp * pSics, void *pData,
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int argc, char *argv[])
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{
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char pBueffel[512];
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int iRights;
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int iRet;
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char *pFile = NULL;
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writeFunc oldWrite;
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pExeBuf buffi = NULL;
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pRestoreObj self = (pRestoreObj) pData;
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assert(pSics);
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assert(pCon);
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assert(self != NULL);
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if (argc < 2) {
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pFile = IFindOption(pSICSOptions, "statusfile");
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if (pFile) {
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snprintf(pBueffel,sizeof(pBueffel)-1, "%s", pFile);
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} else {
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SCWrite(pCon, "ERROR: No filename given for backup, Aborted.",
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eError);
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return 0;
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}
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} else {
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if (strcasecmp(argv[1], "listerr") == 0) {
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return listRestoreErr(self, pCon);
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} else if (strcasecmp(argv[1], "killerr") == 0) {
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if (self->errList >= 0) {
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LLDdeleteBlob(self->errList);
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}
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self->errList = LLDstringCreate();
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StatusFileDirty();
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SCSendOK(pCon);
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return 1;
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} else {
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snprintf(pBueffel,sizeof(pBueffel)-1, "%s", argv[1]);
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}
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}
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buffi = exeBufCreate("restore");
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if (buffi == NULL) {
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SCWrite(pCon, "ERROR: failed to allocate buffer for restore", eError);
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return 0;
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}
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iRet = exeBufLoad(buffi, pBueffel);
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if (iRet != 1) {
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exeBufDelete(buffi);
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SCWrite(pCon, "ERROR: failed open status file", eError);
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return 0;
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}
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LLDdeleteBlob(self->errList);
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self->errList = LLDstringCreate();
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iRights = SCGetRights(pCon);
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pCon->iUserRights = usInternal;
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oldWrite = SCGetWriteFunc(pCon);
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SCSetWriteFunc(pCon, SCNotWrite);
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iRet = exeBufProcessErrList(buffi, pSics, pCon, self->errList);
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restoreOccurred = 1;
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SCSetWriteFunc(pCon, oldWrite);
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pCon->iUserRights = iRights;
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exeBufDelete(buffi);
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/*
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if we do not override parameterChange here, the backup file
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would be overwritten after each restore... Not the right thing
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to do!
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*/
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parameterChange = 0;
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SCSendOK(pCon);
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return iRet;
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}
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/*-----------------------------------------------------------------------*/
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void StatusFileDirty(void)
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{
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parameterChange = 1;
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}
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/*-----------------------------------------------------------------------*/
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void StatusFileInit(void)
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{
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TaskRegister(pServ->pTasker, StatusFileTask, NULL, NULL, NULL, 0);
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}
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