Abstract: A method and device for storing and reading/writing a composite document are disclosed. The method includes: an initial storing area is pre-allocated for an inner controlling stream of the composite document and the initial storing area is continuous sectors or sector clusters; the inner controlling stream is stored in the initial storing area. The patches of a user data stream and the inner controlling stream in the composite document are reduced using the method or device. Correspondingly, pre-allocating storing area makes the probability of continuously storing the user data stream and the inner controlling stream in the composite document increased. The I/O can be optimized by introducing a strategy of reading cache and writing in a batch size, which can improve the efficiency of reading and writing.

Abstract: The present disclosure provides a method and apparatus for cross-process communication, which is related to the field of communication. The method includes: a preset container process receiving a request for cross-process communication sent by a first process; the preset container process setting up a communication channel with the first process according to the request for cross-process communication; the preset container process loading service modules corresponding to the request for cross-process communication, therefore the preset container process that is loaded with the service modules conducting a cross-process communication with the first process through the communication channel. The apparatus includes a reception module, a channel setup module and a loading module. The present disclosure simplifies the process for setting up the communication channel in the cross-process communication, saves codes and therefore improves communication efficiency.

Abstract: A method and device for storing and reading/writing composite document are disclosed. The method includes: an initial storing area is pre-allocated for an inner controlling stream of the composite document and the initial storing area is continuous sectors or sector clusters; the inner controlling stream is stored in the initial storing area. The patches of a user data stream and the inner controlling stream in the composite document are reduced using the method or device. Correspondingly, pre-allocating storing area makes the probability of continuously storing the user data stream and the inner controlling stream in the composite document increased. The I/O can be optimized by introducing a strategy of reading cache and writing in a batch size, which can improve the efficiency of reading and writing.