Article View: comp.sys.amiga.tech
Article #9028Re: DiskObject
From: Dave Oh
Date: Sat, 04 Jun 1988 22:25
Date: Sat, 04 Jun 1988 22:25
54 lines
2314 bytes
2314 bytes
In article <6148@well.UUCP> ewhac@well.UUCP (Leo 'Bols Ewhac' Schwab) writes:
>In article <2135@ur-tut.UUCP> dpvc@tut.cc.rochester.edu.UUCP (Davide P. Cervone) writes:
>>In article <4751@watdcsu.waterloo.edu> debate2@watdcsu.waterloo.edu (Dave Oh) writes:
>>>The GetDiskObject call returns a pointer to FAST ram, for gadget, diskobject
>>>and image... I've tried to CopyMem(&dobj->do_Gadget.GadgetRender,&nimage,
>>>sizeof(struct Image)); and I get a lock up! Even in Manx SDB.
>
> Try this:
>
> CopyMem (&dobj -> do_Gadget.GadgetRender,
> &nimage,
>--> (LONG) sizeof (struct Image));
>
> This is probably what's killing you.
>
I tried the above and after looking at the struct dobj after the CopyMem, my
dobj pointers get wacked out of place and I get crazy values for do_type etc.
What could be doing this? I'll show you the bit of code around the CopyMem:
IDisk(DiskName)
char *DiskName;
{
struct DiskObject *gdisk;
struct DiskList *DiskLst;
struct Image *Img;
char Buffer[36];
strcpy(Buffer,DiskName);
strcat(Buffer,":Disk");
printf("\nName: %s\n",Buffer);
gdisk=GetDiskObject(Buffer);
if(gdisk==0)
printf("---- Cannot Open %s.info file. ----\n",Buffer);
else {
Img = (struct Image *)
AllocRemember(&miscMemList,sizeof(struct Image),CHIPRAM);
CopyMem(&gdisk->do_Gadget.GadgetRender,&Img,(LONG)sizeof(struct Image));
gdisk->do_Gadget.GadgetRender = (APTR)Img;
printf("version: %d\nType: %d\nXpos: %d\nYpos: %d\nStack: %d\n",
gdisk->do_Version, gdisk->do_Type, gdisk->do_CurrentX, gdisk->do_CurrentY,
gdisk->do_StackSize);
}
}
Please help and thanx in advance.
:::> Dave Oh uucp: debate2@watdcsu.waterloo.edu
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Path: arc1-ca.pugleaf.net!utzoo!dciem!nrcaer!scs!spl1!laidbak!att!mtunx!chinet!mcdchg!clyde!watmath!watdcsu!debate2 From: debate2@watdcsu.waterloo.edu (Dave Oh) Newsgroups: comp.sys.amiga.tech,comp.sys.amiga Subject: Re: DiskObject Message-ID: <4773@watdcsu.waterloo.edu> Date: 4 Jun 88 22:25:11 GMT Article-I.D.: watdcsu.4773 References: <4725@watdcsu.waterloo.edu> <54486@sun.uucp> <4751@watdcsu.waterloo.edu> <2135@ur-tut.UUCP> <6148@well.UUCP> Reply-To: debate2@watdcsu.waterloo.edu (Dave Oh) Distribution: na Organization: U. of Waterloo, Ontario Lines: 54