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9b7915facb
This patch reworks the VFS server to become easier to understand. - The packet-stream handling is hidden from the node types. - Introduced the notion of a "job" as an abstraction from the raw packet stream. - The processing of requests is split into three phases: (1) accepting new jobs, (2) the execution of jobs, and (3) the delivery of acknowledgements. - There is no longer a global fifo of pending nodes. Instead, each session has a fifo of "active" nodes, which are nodes that wait for the completion of jobs. - The Io_node type no longer uses virtual functions as hooks for the derrived classes. Instead, it provides a number of utility functions. - The control flow of the 'Io_progress_handler' is now the same as for the session-local packet-stream handler. - Removed dependency from 'file_system/node.h', which is a relic from the ram_fs. While reworking the code, the following semantic changes were made additionally. - The handling of SEEK_TAIL no longer overwrites the file content at the end of the file. - Removed diagnostic message at session-creation time. - Write loop for continuous files Issue #3547 Issue #2303 |
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base | ||
base-fiasco | ||
base-foc | ||
base-hw | ||
base-linux | ||
base-nova | ||
base-okl4 | ||
base-pistachio | ||
base-sel4 | ||
dde_bsd | ||
dde_ipxe | ||
dde_linux | ||
dde_rump | ||
dde_zircon | ||
demo | ||
gems | ||
hello_tutorial | ||
libports | ||
os | ||
ports | ||
README |
=============================== Genode source-code repositories =============================== This directory contains the source-code repositories of the Genode OS Framework. Each sub directory has the same principle layout as described in the build-system manual: :Build-system manual: [https://genode.org/documentation/developer-resources/build_system] The build system uses a configurable selection of those reposities to obtain the source codes for the build process. The repositories are not independent but build upon of each other: :'base': This directory contains the source-code repository of the fundamental frameworks and interfaces of Genode. Furthermore, it contains the generic parts of core. :'base-<platform>': These directories contain platform-specific source-code repositories complementing the 'base' repository. The following platforms are supported: :'linux': Linux kernel (both x86_32 and x86_64) :'nova': NOVA hypervisor developed at University of Technology Dresden See [https://genode.org/documentation/platforms/nova] :'foc': Fiasco.OC is a modernized version of the Fiasco microkernel with a completely revised kernel interface fostering capability-based security. It is not compatible with L4/Fiasco. See [https://genode.org/documentation/platforms/foc] :'hw': The hw platform allows the execution of Genode on bare ARM and x86 hardware without the need for a separate kernel. The kernel functionality is included in core except in the special case of the Muen separation kernel. See [https://genode.org/documentation/platforms/hw] and [https://genode.org/documentation/platforms/muen] :'okl4': OKL4 kernel (x86_32 and ARM) developed at Open-Kernel-Labs. See [https://genode.org/documentation/platforms/okl4] :'pistachio': L4ka::Pistachio kernel developed at University of Karlsruhe. See [https://genode.org/documentation/platforms/pistachio] :'fiasco': L4/Fiasco kernel developed at University of Technology Dresden. See [https://genode.org/documentation/platforms/fiasco] :'sel4': seL4 microkernel developed at NICTA/General Dynamics See[https://sel4.systems/] :'os': This directory contains the non-base OS components such as the init process, device drivers, and basic system services. :'demo': This directory contains the source-code repository of various services and applications that we use for demonstration purposes. For example, a graphical application launcher called Launchpad and the Scout tutorial browser. :'hello_tutorial': Tutorial for creating a simple client-server scenario with Genode. This repository includes documentation and the complete source code. :'libports': This source-code repository contains ports of popular open-source libraries to Genode, most importantly the C library. The repository contains no upstream source code but means to download the code and adapt it to Genode. For instructions about how to use this mechanism, please consult the README file at the top level of the repository. Among the 3rd-party libraries are Qt5, libSDL, freetype, Python, ncurses, Mesa, and libav. :'dde_linux': This source-code repository contains the device driver environment for executing Linux device drivers natively on Genode. Currently, this repository hosts the USB stack. :'dde_ipxe': This source-code repository contains the device-driver environment for executing drivers of the iPXE project. :'dde_bsd': This source-code repository contains the device-driver environment for drivers of the OpenBSD operating system. :'dde_rump': This source-code repository contains the port of rump kernels, which are used to execute subsystems of the NetBSD kernel as user level processes. The repository contains a server that uses a rump kernel to provide various NetBSD file systems to Genode. :'dde_zircon': This repository contains the emulation environment for drivers ported from the Zircon kernel. :'ports': This source-code repository hosts ports of 3rd-party applications to Genode. The repository does not contain upstream source code but provides a mechanism for downloading the official source distributions and adapt them to the Genode environment. The used mechanism is roughly the same as used for the 'libports' repository. Please consult 'libports/README' for further information. :'gems': This source-code repository contains Genode applications that use both native Genode interfaces as well as features of other high-level repositories, in particular shared libraries provided by 'libports'.