Techniques and a system are provided for managing resources used by user-provided programs. The system includes an application programming interface (API) that allows user-provided programs to access memory resources managed by functions provided by the API. The system stores memory-usage records made during memory allocations. Memory-usage records may be used to identify memory resources, analyze memory usage, and provide other features.

Techniques and a system are provided for managing resources used by user-provided programs. The system includes an application programming interface (API) that allows user-provided programs to access memory resources managed by functions provided by the API. The system stores memory-usage records made during memory allocations. Memory-usage records may be used to identify memory resources, analyze memory usage, and provide other features.

Techniques and a system are provided for managing resources used by user-provided programs. The system includes an application programming interface (API) that allows user-provided programs to access memory resources managed by functions provided by the API. The system stores memory-usage records made during memory allocations. Memory-usage records may be used to identify memory resources, analyze memory usage, and provide other features.

In an approach to cleanup of unpredictable test results, one or more computer processors generate a data area associated with a first test instruction in a test stream. The one or more computer processors determine whether the generated data area overlaps with an unpredictable data area. In response to determining the generated data area overlaps with an unpredictable data area, the one or more computer processors determine a second test instruction associated with the overlapped unpredictable data area, where the second test instruction precedes the first test instruction in the test stream. The one or more computer processors select a location in the test stream between the first test instruction and the second test instruction. The one or more computer processors insert one or more pre-requisite instructions in the selected location, where the one or more pre-requisite instructions load the overlapped unpredictable data area with pre-defined data.

Various technologies and techniques are disclosed for using contracts in dynamic languages. For example, a contract can be directly associated with an object. The contract can then be used to provide type safety for the object. As another example, contracts can be used with mix-ins. A declaration for a contract is provided with a mix-in. The contract is associated with a target object at runtime when applying the mix-in. Conditions can be assigned to mix-ins that must be met before the mix-in can be applied to the target object. At runtime, if the target object meets the one or more conditions, then the mix-in can be applied to the target object.

The described technology is directed towards handling errors in an application program that allows for a taxonomy and precedence order of errors. Exception wrapping includes preserving relevant information with an exception, and consolidates a series of errors into a single dominant exception instance that is handled appropriately depending on the exception type. Also described is a centralized exception manager that outputs an interactive dialog based upon the exception type, and takes a recovery action based upon user interaction with the dialog.

Various technologies and techniques are disclosed for using contracts in dynamic languages. For example, a contract can be directly associated with an object. The contract can then be used to provide type safety for the object. As another example, contracts can be used with mix-ins. A declaration for a contract is provided with a mix-in. The contract is associated with a target object at runtime when applying the mix-in. Conditions can be assigned to mix-ins that must be met before the mix-in can be applied to the target object. At runtime, if the target object meets the one or more conditions, then the mix-in can be applied to the target object.

The described technology is directed towards handling errors in an application program that allows for a taxonomy and precedence order of errors. Exception wrapping includes preserving relevant information with an exception, and consolidates a series of errors into a single dominant exception instance that is handled appropriately depending on the exception type. Also described is a centralized exception manager that outputs an interactive dialog based upon the exception type, and takes a recovery action based upon user interaction with the dialog.

The present disclosure involves systems, software, and computer implemented methods for integrated data privacy services. An example method includes receiving a request to initiate an aligned purpose disassociation protocol for a purpose for an object instance. A determination is made as to whether a timestamp is stored for the purpose and the object instance that indicates an earliest time that the purpose can be disassociated from the object instance. The request is accepted in response to determining that no timestamp is stored for the purpose and the object instance that is greater than the current time. A status request is sent to applications that requests a status response that indicates whether an application can disassociate the purpose from the object instance. Status responses are received from at least some of the applications. A disassociation decision for the purpose and the object instance is determined based on the received status responses.

Techniques are provided for implementing a unified object format. The unified object format is used to format data in a performance tier (e.g., infrequently accessed data, snapshot data, etc.) into objects that are stored into an object store for low cost, scalable, long term storage compared to storage of the performance tier. With the unified object format, compression of the data may be retained when the data is stored as the objects into the object store. Additional compression may also be provided for the data in the objects. The unified object format includes slot header metadata used to track the location of the data within the object notwithstanding the data being compressed and/or stored at non-fixed boundaries. The slot header metadata may be cached at the performance tier for improved read performance and may be repaired by a repair subsystem (a slot header repair subsystem).