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diff --git a/lib/vfs/README b/lib/vfs/README new file mode 100644 index 0000000..14d4397 --- /dev/null +++ b/lib/vfs/README @@ -0,0 +1,70 @@ +NOTE: Although vfs has been meant to be implemented as a separate +entity redistributable under the LGPL in its current implementation it +uses GPLed code from src/. So there are two possibilities if you want +to use vfs: + +1. Distribute your copy of vfs under the GPL. Then you can freely +include the GPLed functions from the rest of the mc source code. + +2. Distribute your copy of vfs under the LGPL. Then you cannot include +the functions outside the vfs subdirectory. You must then either +rewrite them or work around them in other ways. + +======================================================================== + +Hi! + +I'm midnight commander's vfs layer. Before you start hacking me, +please read this file. I'm integral part of midnight commander, but I +try to go out and live my life myself as a shared library, too. That +means that I should try to use as little functions from midnight as +possible (so I'm tiny, nice and people like me), that I should not +pollute name space by unnecessary symbols (so I do not crash fellow +programs) and that I should have a clean interface between myself and +midnight. + +Because I'm rather close to midnight, try to: + +* Keep the indentation as the rest of the code. Following could help +you with your friend emacs: + +(defun mc-c-mode () + "C mode with adjusted defaults for use with the Midnight commander." + (interactive) + (c-mode) + (c-set-style "K&R") + (setq c-indent-level 4 + c-continued-statement-offset 4 + c-brace-offset 0 + c-argdecl-indent 4 + c-label-offset -4 + c-brace-imaginary-offset 0 + c-continued-brace-offset 0 + c-tab-always-indent nil + c-basic-offset 4 + tab-width 8 + comment-column 60)) + +(setq auto-mode-alist (cons '(".*/mc/.*\\.[ch]$" . mc-c-mode) + auto-mode-alist)) + +And because I'm trying to live life on my own as libvfs.so, try to: + +* Make sure all exported symbols are defined in vfs.h and begin with +'vfs_'. + +* Do not make any references from midnight into modules like tar. It +would probably pollute name space and midnight would depend on concrete +configuration of libvfs. mc_setctl() and mc_ctl() are your +friends. (And mine too :-). + + Pavel Machek + pavel@ucw.cz + +PS: If you'd like to use my features in whole operating system, you +might want to link me to rpc.nfsd. On +http://atrey.karlin.mff.cuni.cz/~pavel/podfuk/podfuk.html you'll find +how to do it. + +PPS: I have a friend, shared library called avfs, which is LD_PRELOAD +capable. You can reach her at http://www.inf.bme.hu/~mszeredi/avfs. |