Jonathan Clark

US Patent:

7856637, Dec 21, 2010

Filed:

Oct 25, 2006

Appl. No.:

11/552734

Inventors:

Jonathan Clark - San Francisco CA, US

Assignee:

VMware, Inc. - Palo Alto CA

International Classification:

G06F 3/00
G06F 9/44
G06F 9/45
G06F 13/00

US Classification:

719318, 719331

Abstract:

A Windows™ process loader is emulated for dynamic TLS data allocation during respective application runtime. A total required TLS data block size is initially calculated and corresponding data block duplicates are created preferably after initializing of the application. An event notification system such as a hooking system intercepts DLL loading and freeing activity as well as thread creation and exiting and provides event notifications for dynamic allocation of corresponding TLS data block duplicates.

US Patent:

8568587, Oct 29, 2013

Filed:

Mar 11, 2011

Appl. No.:

13/046552

Inventors:

Susan V. Olesik - Dublin OH, US
Jonathan E. Clark - Nashville TN, US
Jeremy K. Steach - Kingsport TN, US
Joseph W. Zewe - Marion Center PA, US

Assignee:

The Ohio State University Research Foundation - Columbus OH

International Classification:

B01D 15/08

US Classification:

2101982, 2101983, 2105021, 210634, 210635, 210656, 210658

Abstract:

A supported nanofiber medium useful for segregating chemical species is provided by selecting a polymer, selecting a substrate; and electrospinning the polymer to form a nanofiber medium on the supporting substrate. When the substrate is a planar surface, the nanofiber medium will be a mat suitable for conducting chromatographic separation. When the substrate is a filament, the nanofiber medium is an annular mat suitable for solid phase microextraction. The nanofiber media formed may be selectively cross-linked and at least partially carbonized to carbon nanofibers. The nanofiber medium is supported on the substrate without the use of binder material.

US Patent:

20070261044, Nov 8, 2007

Filed:

May 4, 2006

Appl. No.:

11/381715

Inventors:

Jonathan Clark - San Francisco CA, US

International Classification:

G06F 9/44

US Classification:

717162000, 717130000

Abstract:

A hooking system for hooking predetermined references to predetermined dynamically loaded library (DLL) functions includes a DLL version identifier provided by a hook entry code to an enhanced hook. The hook entry code is dynamically generated during runtime of an affected software application. The version identifier enables unambiguous communication of a single enhanced hook with functions of multiple versions of identically named DLLs loaded into the same isolated process memory area.

US Patent:

20090271779, Oct 29, 2009

Filed:

Apr 24, 2009

Appl. No.:

12/429584

Inventors:

Jonathan CLARK - San Francisco CA, US

Assignee:

VMWARE, INC. - Palo Alto CA

International Classification:

G06F 9/44
G06F 17/30

US Classification:

717171, 707 10, 707204, 707E1701

Abstract:

A method for updating a local file and format for the local to be updated is described. An update file, which is a newer version of the local file, is accessible from a server over a network. A list of new hash values corresponding to data blocks of the update file is retrieved from the server. An algorithm locates divisions between the data blocks when a value of a rolling checksum reaches a particular value, the blocks being of variable size. New hash values of the update file are compared with local hash values of the local file. For each of the new hash values not having a matching local hash value, the corresponding data block is downloaded the server written to a new file. For each of the new hash values having a matching local hash value, the corresponding block is copied to the new file. The procedure is executed entirely on the client.

US Patent:

20090271787, Oct 29, 2009

Filed:

Apr 24, 2009

Appl. No.:

12/429472

Inventors:

Jonathan CLARK - San Francisco CA, US

Assignee:

VMWARE, INC. - Palo Alto CA

International Classification:

G06F 9/44

US Classification:

718 1

Abstract:

A method for linking a plurality of virtualized application packages for execution on a computer system is described. A runtime executable of a primary virtualized application package is launched. A secondary virtualized application package to be merged with the primary virtualized application package is identified. In one embodiment, application settings and file data for the first and second virtualized application packages are merged into a single data structure. An execution layer is created by starting execution of one of the application files associated with the primary virtualized application package. Requests from the execution layer to the operating system for configuration settings and contents of application files of either the primary virtualized application package or secondary virtualized application package and providing requested configuration settings are satisfied using configuration settings and file information from both the primary and secondary virtualized application packages.

US Patent:

20100257269, Oct 7, 2010

Filed:

Apr 1, 2009

Appl. No.:

12/416415

Inventors:

Jonathan CLARK - San Francisco CA, US

Assignee:

VMWARE, INC. - Palo Alto CA

International Classification:

G06F 9/46
G06F 15/16
G06F 9/455

US Classification:

709226, 718100, 709245, 718 1

Abstract:

One or more processes are offloaded from one virtual machine running on one host computer to another virtual machine running on another host computer so that load balancing can be performed on a per process level and physical servers supporting the virtual machines can be more optimally utilized. Migrating one or more processes from a virtual machine running on a first host computer to a second host computer includes replicating the virtual machine on the second host computer, terminating the migrated processes from the virtual machine running on the first host computer, and terminating all user-level processes running on the replicated virtual machine other than the migrated processes.

US Patent:

20110088047, Apr 14, 2011

Filed:

Dec 20, 2010

Appl. No.:

12/973664

Inventors:

Jonathan CLARK - San Francisco CA, US

Assignee:

VMWARE, INC. - Palo Alto CA

International Classification:

G06F 3/00
G06F 13/00
G06F 9/44
G06F 9/46

US Classification:

719318

Abstract:

A computer readable storage medium containing a program which, when executed by a processor, performs an operation of emulating static thread local storage of an executable software code at runtime, is disclosed. The operation includes executing the executable software code within a process memory space. During the execution of the executable software code, an occurrence of an event that is associated with a thread create operation is monitored. When the monitored event occurs, a thread data block duplicate is established within the process memory space and associated with a thread created by the thread create operation. The thread data block duplicate is configured to be accessed by executing a thread local storage callback function.

US Patent:

20140082641, Mar 20, 2014

Filed:

Nov 23, 2013

Appl. No.:

14/088359

Inventors:

Jonathan Clark - San Francisco CA, US

Assignee:

VMware, Inc. - Palo Alto CA

International Classification:

G06F 9/445

US Classification:

719331

Abstract:

A hooking system for hooking predetermined references to predetermined dynamically loaded library (DLL) functions includes a DLL version identifier provided by a hook entry code to an enhanced hook. The hook entry code is dynamically generated during runtime of an affected software application. The version identifier enables unambiguous communication of a single enhanced hook with functions of multiple versions of identically named DLLs loaded into the same isolated process memory area.