ANNOTATION-AIDED CODE GENERATION IN LIBRARY-BASED REPLAY

1 . A method for automatically generating a replay-enabling code, the method comprising:

intercepting one or more application program interface (API) functions;

generating one or more code wrappers and one or more slots utilizing annotation information;

encapsulating the one or more API functions with the one or more code wrappers; and

converting one or more wrapped API functions into one or more flexible extension structures.

2 . The method of claim 1 , wherein the one or more API functions are located in a virtual execution layer.

3 . The method of claim 2 , wherein the virtual execution layer comprises representing a boundary between a program and an underlying support infrastructure.

4 . The method of claim 1 , wherein the one or more flexible extensions comprises a SignalEx® object.

5 . The method of claim 4 , wherein the SignalEx®(g object comprises treating the one or more API functions as a signal-slot process comprising the one or more slots, wherein the SignalEx® is plugged into the one or more slots.

6 . The method of claim 1 , further comprising an application reading the annotation information to generate code wrapper information.

7 . The method of claim 1 , further comprising a device reading the annotation information to generate code wrapper information.

8 . The method of claim 1 , wherein the one or more API functions comprises being annotated in a Standard Annotation Language (SAL).

9 . One or more computer-readable storage media containing instructions that are executable by a computing device to perform actions comprising:

intercepting one or more application program interface (API) functions;

encapsulating the one or more API functions with a code wrapper;

converting a wrapped API function into a flexible extension, wherein the flexible extension treats the wrapped API function as one or more slots of a linked list; and

executing the one or more slots of the linked list.

10 . The one or more computer-readable storage media of claim 9 , wherein the linked list comprises being dynamically reconfigured.

11 . The one or more computer-readable storage media of claim 9 , further comprising a wrapped API function utilizing a script to convert the one or more wrapped API function into the flexible extensions.

12 . The one or more computer-readable storage media of claim 11 , wherein the script comprises generating a slot to record contents of output parameters.

13 . A system for automatically generating a replay-enabling code, the system comprising:

a processor;

a memory coupled to the processor;

a virtual execution layer stored in the memory;

one or more application program interface (API) functions existing in a virtual execution layer;

a linked-list, wherein the one or more API functions emit a signal triggering a slot within the linked-list to be executed.

14 . The system of claim 13 , wherein the one or more API functions existing in the virtual execution layer comprises encapsulating with a code wrapper generated from annotation information creating one or more code wrapped API functions.

15 . The system of claim 14 , wherein the one or more code wrapped API functions comprises converting into one or more flexible extensions.

16 . The system of claim 13 , wherein the linked list comprises one or more distinctive slots that are executed one by one.

17 . The system of claim 16 , wherein the one or more distinctive slots comprises a log slot and a replay slot tool.

18 . The system of claim 17 , wherein the log slot comprises recording the output parameters of the one or more APIs calls.

19 . The system of claim 18 , wherein the logging information comprises collecting on a separate memory device.

20 . The system of claim 18 , wherein the replay slot comprises feeding the linked list from the logged output parameters.