Red Hat Israel, Ltd.

Simcha Dov Zacks

Oded Ramraz

Ilia Meerovich

Semion Shtein

Methods, systems, and computer program products are included for providing snapshot version control. A method includes creating a snapshot corresponding to a file system at a first point in time. After creating the snapshot, a file management data structure of the file system is modified corresponding to a file creation, deletion, or modification. The modified file management data structure is compared to the snapshot to identify differences between the snapshot and the file management data structure. A user may select one or more of the identified differences for merging the selected differences from the snapshot to the file management data structure or from the file management data structure to the snapshot.

Snapshot version control

An example method of interacting with a source object via a virtual object, the method includes associating a first set of properties of a virtual object with a second set of properties of a source object that is defined in a program. The method also includes defining a set of functions corresponding to the associated first and second sets of properties and receiving a first request to instantiate the virtual object. The source object is instantiated in response to the first request. The method further includes receiving a second request to perform an operation using the first set of properties of the virtual object and executing the set of functions in response to the second request. The method also includes updating the second set of properties of the source object in accordance with a result of the executed set of functions.

Interacting with a source object via a virtual object

Methods, systems, and computer program products are provided to identify a testing function corresponding to a tested function and associate the identity of the testing function with identifiers of one or more lines of source code corresponding to the tested function. A testing function is queued for execution in an execution stack. The testing function calls a function corresponding to one or more lines of a source code, wherein the source code includes instrumentation code corresponds to the function, and wherein the function is queued for execution in the execution stack by the call. The function is executed, and identifiers are retrieved during the execution. The retrieved identifiers correspond to the testing function and to the one or more lines of source code. The identifier corresponding to the testing function is retrieved from the execution stack, and the identifiers corresponding to the one or more lines of source code are retrieved by a code coverage module from one or more hooks corresponding to the instrumentation code. Based on the retrieving during the execution, the identifier of the testing function is associated with the identifiers of the one or more lines of source code. The identifier of the testing function and the identifiers of the one or more lines of source code are stored in a data structure.

Code coverage module with testing function identifier

A system, method, and apparatus for operating system integrated application isolation. A snapshot manager creates a snapshot table including one or more pointers to a file system storage. Then an application is installed on an operating system and mapped to a snapshot table. The snapshot manager receives a request by the application to access a memory block. The snapshot manager determines whether the application has permission to access the memory block. Responsive to a determination that the application has permission to access the memory block, the snapshot manager permits access to the memory block.

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Maalot-Tarshiha, Israel

Simcha Dov Zacks