Club Amiga de Montreal - CAM/CAM_CD_1.iso/files/492.lha/ToolManager_v1.3/src/starttools.c

C/C++ Source or Header | 1991-04-06 | 5.1 KB | 167 lines

/*
 * starttools.c   V1.3
 *
 * CLI & WB startup procedure
 *
 * (c) 1991 by Stefan Becker
 *
 */
#include "ToolManager.h"

/* Start tool as a CLI process */
BOOL StartCLITool(struct AppMessage *msg, struct ToolNode *tn, char *name)
{
 BPTR fl;                       /* AmigaDOS file handle */
 BOOL rc=TRUE;
 char cmd[NAMELEN];             /* Buffer for command line */
 int cmdlen;                    /* Command line length */
 char dir[NAMELEN];
 struct WBArg *wa=msg->am_ArgList;
 int i;

 fl=CurrentDir(tn->tn_DirLock); /* Change to tool's directory */

 strcpy(cmd,name);              /* Command name first */
 cmdlen=strlen(cmd);

 for (i=msg->am_NumArgs; i; i--,wa++)
  {
   char *cp;
   int namelen;

   if (!wa->wa_Lock) continue;  /* Skip arguments which don't support locks! */

   if (cmdlen>NAMELEN-2) break; /* Append a space for each parameter */
   strcat(cmd," ");
   cmdlen++;

   /* Build parameter from Lock & name */
   if (SameLock(tn->tn_DirLock,wa->wa_Lock)==LOCK_SAME) cp=wa->wa_Name;
   else
    {
     if (!NameFromLock(wa->wa_Lock,dir,NAMELEN)) continue;
     if (!AddPart(dir,wa->wa_Name,NAMELEN)) continue;
     cp=dir;
    }

   namelen=strlen(cp);

   if (strchr(cp,' '))          /* Special case: Space in a filename */
    if (namelen>NAMELEN-3) break;
    else
     {
      strins(cp,"\"");          /* Set parameter in double quotes */
      strcat(cp,"\"");
      namelen+=2;
     }

   if (cmdlen+namelen>NAMELEN-2) break;
   strcat(cmd,cp);              /* Append parameter */
   cmdlen+=namelen;             /* New command line length */
  }

 /* Start tool */
 if (SystemTags(cmd,SYS_Input,Open("NIL:",MODE_NEWFILE),
                    SYS_Output,Open("NIL:",MODE_NEWFILE),
                    SYS_Asynch,TRUE, /* Run tools asynchronously */
                    TAG_DONE)==-1)
  rc=FALSE; /* An error occured */

 CurrentDir(fl);                /* Change to old directory */
 return(rc);
}

/* Start tool as a WB process */
BOOL StartWBTool(struct AppMessage *msg, struct ToolNode *tn, char *name)
{
 BPTR fl;                       /* AmigaDOS file handle */
 struct WBStartup *wbs;         /* WBStartup message for tool */
 struct DiskObject *tdob;       /* Tool icon */
 LONG ssize=4096;               /* StackSize, default */
 struct MsgPort *proc;          /* Process descriptor for tool */
/* struct Process *proc;  Process descriptor for CreateNewProc */
 struct WBArg *wbad,*wbas;      /* Pointers to WB arguments */
 int i;

 /* Allocate memory for WBStartup */
 if (!(wbs=calloc(sizeof(struct WBStartup)+
                  sizeof(struct WBArg)*(msg->am_NumArgs+1),1))) return (FALSE);

 fl=CurrentDir(tn->tn_DirLock); /* Change to tool's directory */

 if (!(wbs->sm_Segment=NewLoadSeg(name,NULL))) goto e1; /* Load tool code */

 /* Get some information about the tool */
 if (tdob=GetDiskObject(name))
  {
   if (tdob->do_Type==WBTOOL) /* Only WBTools supply this type of info! */
    {
     if (tdob->do_ToolWindow) wbs->sm_ToolWindow=strdup(tdob->do_ToolWindow);
     if (tdob->do_StackSize>ssize) ssize=tdob->do_StackSize;
    }
   FreeDiskObject(tdob);
  }

 /* Build WBStartup message */
 /* wbs->sm_Message.mn_Node.ln_Type=NT_MESSAGE; PutMsg() does this for us! */
 wbs->sm_Message.mn_ReplyPort=MyMP;
 wbs->sm_Message.mn_Length=sizeof(struct WBStartup);
 wbs->sm_NumArgs=msg->am_NumArgs+1;
 wbs->sm_ArgList=wbs+1;             /* WBArg array starts after WBStartup */

 /* Initialize WBArg pointers */
 wbas=msg->am_ArgList;
 wbad=wbs->sm_ArgList;

 /* 1. argument is the tool itself! */
 if (!(wbad->wa_Lock=DupLock(tn->tn_DirLock))) goto e2;
 if (!(wbad->wa_Name=strdup(name))) goto e3;
 wbad++;

 /* Copy WB arguments */
 for (i=msg->am_NumArgs; i; i--,wbas++,wbad++)
  {
   if (!(wbad->wa_Lock=DupLock(wbas->wa_Lock)))
    {
     wbad--;             /* Skip parameters, which don't support a lock */
     wbs->sm_NumArgs--;
     continue;           /* Next parameter */
    }

   /* Sanity check for name string... Enforcer is watching you! */
   if (!wbas->wa_Name || !(wbad->wa_Name=strdup(wbas->wa_Name))) goto e3;
  }

 /* Create process */
 if (!(wbs->sm_Process=CreateProc(wbs->sm_ArgList->wa_Name,0,wbs->sm_Segment,
                                  ssize))) goto e3;

/* if (!(proc=CreateNewProcTags(NP_Seglist,wbs->sm_Segment,
                              NP_FreeSeglist,TRUE,
  Maybe someday I will know   NP_StackSize,ssize,
  what Tags I need to make    NP_Name,wbs->sm_ArgList->wa_Name,
  CreateNewProc() behave      NP_CloseInput,FALSE,
  like CreateProc()           NP_CloseOutput,FALSE,
                              TAG_DONE))) goto e3; */

 /* Send WBStartup message to tool */
/* wbs->sm_Process=&proc->pr_MsgPort; for CreateNewProc() */
 PutMsg(wbs->sm_Process,(struct Message *) wbs);
 CurrentDir(fl);                /* Change to old directory */
 wbactive++;                    /* Tool started! */
 return(TRUE);

 /* An error occurred. Free all resources */
e3: wbas=wbs->sm_ArgList;
    for (i=wbs->sm_NumArgs; i; i--,wbas++)
     {
      UnLock(wbas->wa_Lock);
      if (wbas->wa_Name) free(wbas->wa_Name);
     }
e2: UnLoadSeg(wbs->sm_Segment);
e1: CurrentDir(fl);
    free(wbs);
    return(FALSE);
}