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Re: Hdf-forum Digest, Vol 84, Issue 14

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Re: Hdf-forum Digest, Vol 84, Issue 14

dimstamat
OK, then I could maybe call H5VL_object_register to get new ID and then unregister at the end? The other way was to pass the group's location ID as a parameter in the void* op_data, but I want to leave the user application unchanged. Is this how the native VOL plugin gets the group object’s location ID? By registering it again?


Thanks,

Dimos



---
Dimokritos Stamatakis
PhD student,
Brandeis University

On Jun 14, 2016, at 1:42 PM, [hidden email] wrote:

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Today's Topics:

  1. getting the location ID of an object (Dimos Stamatakis)
  2. Re: getting the location ID of an object (Mohamad Chaarawi)


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Message: 1
Date: Tue, 14 Jun 2016 13:03:33 -0400
From: Dimos Stamatakis <[hidden email]>
To: [hidden email]
Subject: [Hdf-forum] getting the location ID of an object
Message-ID: <[hidden email]>
Content-Type: text/plain; charset="us-ascii"

Thanks Mohamad! However, I would need the same location ID, not an new one. For example, how does the native find the location ID of the containing group so that to pass it to the apply callback op (H5A_operator2_t op)?

Thanks,

Dimos

---
Dimokritos Stamatakis
PhD student,
Brandeis University

On Jun 14, 2016, at 1:00 PM, [hidden email] wrote:

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Today's Topics:

 1. Re: getting the location ID of an object (Mohamad Chaarawi)


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Message: 1
Date: Tue, 14 Jun 2016 15:56:56 +0000
From: Mohamad Chaarawi <[hidden email]>
To: HDF Users Discussion List <[hidden email]>
Subject: Re: [Hdf-forum] getting the location ID of an object
Message-ID: <[hidden email]>
Content-Type: text/plain; charset="utf-8"

You can?t get the location id, but you can create one yourself using:
H5VLobject_register() if external plugin
Or H5VL_object_register() if internal plugin.

Thanks,
Mohamad

From: Hdf-forum <[hidden email]> on behalf of Dimos Stamatakis <[hidden email]>
Reply-To: hdf-forum <[hidden email]>
Date: Tuesday, June 14, 2016 at 10:24 AM
To: hdf-forum <[hidden email]>
Subject: [Hdf-forum] getting the location ID of an object

Hello,

is there a way to get the location ID of an object given the object itself, or maybe from the location parameters? (H5VL_loc_params_t).
For example, if we want to iterate over the attributes of group "mygroup", we call H5Aiterate2 and we pass the location ID of mygroup. Then, within the attr_specific function we get the group itself (void* obj) and not its location ID. Is there a way to get the location ID somehow? It is required for passing it to the apply function.

Thanks,

Dimos
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Message: 2
Date: Tue, 14 Jun 2016 17:41:20 +0000
From: Mohamad Chaarawi <[hidden email]>
To: HDF Users Discussion List <[hidden email]>
Subject: Re: [Hdf-forum] getting the location ID of an object
Message-ID: <[hidden email]>
Content-Type: text/plain; charset="utf-8"

Hmm why do you need the same ID?
The ID is just a token that will dereference to the same object.

There is no requirement that the ID be the same.

Mohamad

From: Hdf-forum <[hidden email]> on behalf of Dimos Stamatakis <[hidden email]>
Reply-To: hdf-forum <[hidden email]>
Date: Tuesday, June 14, 2016 at 12:03 PM
To: hdf-forum <[hidden email]>
Subject: [Hdf-forum] getting the location ID of an object

Thanks Mohamad! However, I would need the same location ID, not an new one. For example, how does the native find the location ID of the containing group so that to pass it to the apply callback op (H5A_operator2_t op)?

Thanks,

Dimos

---
Dimokritos Stamatakis
PhD student,
Brandeis University

On Jun 14, 2016, at 1:00 PM, [hidden email]<mailto:[hidden email]> wrote:

Send Hdf-forum mailing list submissions to
[hidden email]<mailto:[hidden email]>

To subscribe or unsubscribe via the World Wide Web, visit
http://lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org

or, via email, send a message with subject or body 'help' to
[hidden email]

You can reach the person managing the list at
[hidden email]

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Hdf-forum digest..."


Today's Topics:

 1. Re: getting the location ID of an object (Mohamad Chaarawi)


----------------------------------------------------------------------

Message: 1
Date: Tue, 14 Jun 2016 15:56:56 +0000
From: Mohamad Chaarawi <[hidden email]>
To: HDF Users Discussion List <[hidden email]>
Subject: Re: [Hdf-forum] getting the location ID of an object
Message-ID: <[hidden email]>
Content-Type: text/plain; charset="utf-8"

You can?t get the location id, but you can create one yourself using:
H5VLobject_register() if external plugin
Or H5VL_object_register() if internal plugin.

Thanks,
Mohamad

From: Hdf-forum <[hidden email]> on behalf of Dimos Stamatakis <[hidden email]>
Reply-To: hdf-forum <[hidden email]>
Date: Tuesday, June 14, 2016 at 10:24 AM
To: hdf-forum <[hidden email]>
Subject: [Hdf-forum] getting the location ID of an object

Hello,

is there a way to get the location ID of an object given the object itself, or maybe from the location parameters? (H5VL_loc_params_t).
For example, if we want to iterate over the attributes of group "mygroup", we call H5Aiterate2 and we pass the location ID of mygroup. Then, within the attr_specific function we get the group itself (void* obj) and not its location ID. Is there a way to get the location ID somehow? It is required for passing it to the apply function.

Thanks,

Dimos
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_______________________________________________
Hdf-forum is for HDF software users discussion.
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------------------------------

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*****************************************

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Hdf-forum is for HDF software users discussion.
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*****************************************


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