摘要:
A computer implemented method, apparatus, and computer program product for using a virtual file system to encrypt files. The process registers a plurality of file systems on a data processing system with the virtual file system. The virtual file system is enabled to encrypt files without intervention from any file system in the plurality of file systems. The virtual file system identifies whether a file on a given file system is an encrypted file using a map file associated with the given file system. In response to identifying the file as an encrypted file, the virtual file system encrypts all data written to the file in accordance with encryption specifications in the map file.
摘要:
A computer implemented method, apparatus, and computer program product for using a virtual file system to encrypt files. The process registers a plurality of file systems on a data processing system with the virtual file system. The virtual file system is enabled to encrypt files without intervention from any file system in the plurality of file systems. The virtual file system identifies whether a file on a given file system is an encrypted file using a map file associated with the given file system. In response to identifying the file as an encrypted file, the virtual file system encrypts all data written to the file in accordance with encryption specifications in the map file.
摘要:
Methods (100), systems (300) and computer program products are disclosed for uninterrupted execution of an application program (110). The method (100) comprises: receiving a write operation call to a native file system from an application program (110) being executed on an operating system; and dynamically allocating (120, 122) free data blocks to the native file system from at least one other file system in a group of file systems until completion of execution of the application program (110) thereby completing the write operation call. The group of file systems is configured to allow sharing of free data blocks amongst the group of file systems.
摘要:
Methods (100), systems (300) and computer program products are disclosed for uninterrupted execution of an application program (110). The method (100) comprises: receiving a write operation call to a native file system from an application program (110) being executed on an operating system; and dynamically allocating (120, 122) free data blocks to the native file system from at least one other file system in a group of file systems until completion of execution of the application program (110) thereby completing the write operation call. The group of file systems is configured to allow sharing of free data blocks amongst the group of file systems.
摘要:
Methods (100), systems (300) and computer program products are disclosed for uninterrupted execution of an application program (110). The method (100) comprises: receiving a write operation call to a native file system from an application program (110) being executed on an operating system; and dynamically allocating (120, 122) free data blocks to the native file system from at least one other file system in a group of file systems until completion of execution of the application program (110) thereby completing the write operation call. The group of file systems is configured to allow sharing of free data blocks amongst the group of file systems.
摘要:
Methods (100), systems (300) and computer program products are disclosed for uninterrupted execution of an application program (110). The method (100) comprises: receiving a write operation call to a native file system from an application program (110) being executed on an operating system; and dynamically allocating (120, 122) free data blocks to the native file system from at least one other file system in a group of file systems until completion of execution of the application program (110) thereby completing the write operation call. The group of file systems is configured to allow sharing of free data blocks amongst the group of file systems.
摘要:
Methods (100), systems (300) and computer program products are disclosed for uninterrupted execution of an application program (110). The method (100) comprises: receiving a write operation call to a native file system from an application program (110) being executed on an operating system; and dynamically allocating (120, 122) free data blocks to the native file system from at least one other file system in a group of file systems until completion of execution of the application program (110) thereby completing the write operation call. The group of file systems is configured to allow sharing of free data blocks amongst the group of file systems.
摘要:
Method for providing programming support to a debugger are disclosed. The method includes defining at least one debugger programming statement, and instructing the debugger to execute the at least one debugger programming statement which modifies a least a portion of the computer program during execution of the computer program without recompiling the computer program. The debugger may be instructed to execute the at least one debugger programming statement at a specified position of the computer program. The at least one debugger programming statement may include a delete instruction that instructs the debugger to prevent one or more programming statements at a specified position in the computer program from being executed. The debugger may be instructed to execute the at least one debugger programming statement instead of one or more programming statements at a specified position in the computer program without recompiling the computer program.
摘要:
According to one aspect of the present disclosure, a method and technique for domain based user mapping of objects is disclosed. The method includes: responsive to determining that an operation is being attempted on an object identified with an object identifier, determining a domain identifier associated with a user attempting the operation; determining whether the operation can proceed on the object based on domain isolation rules, the domain isolation rules indicating rules for allowing or disallowing operations to proceed on objects based on object identifiers and domain identifiers; responsive to determining that the operation on the object can proceed based on the domain isolation rules, accessing user mapping rules that map specified users allowed to perform a specified operation to a specified object; and determining whether the operation can proceed on the object by the user based on the user mapping rules.
摘要:
Methods, systems, and products for managing memory. In one general embodiment, the method includes assigning an isolated virtual heap in a global kernel heap of a global operating system environment to each of a plurality of isolated virtual operating system environments operating in a global operating system environment; and in response to an invocation of kernel heap memory allocation from one of the isolated virtual operating system environments, dynamically allocating memory to the invoking isolated virtual operating system environment from the virtual kernel heap assigned to the invoking isolated virtual operating system environment. The method may also include running the plurality of isolated virtual operating system environments in the global operating system environment. The plurality of isolated virtual operating system environments may share a single common kernel. The isolated virtual operating system environments may run under the same operating system image.