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Message-ID: <alpine.DEB.1.10.0906040814360.21635@makko.or.mcafeemobile.com> Date: Thu, 4 Jun 2009 08:19:36 -0700 (PDT) From: Davide Libenzi <davidel@...ilserver.org> To: Goswin von Brederlow <goswin-v-b@....de> cc: Miklos Szeredi <miklos@...redi.hu>, linux-kernel@...r.kernel.org Subject: Re: include/linux/aio_abi.h and IOCB_CMD_POLL On Thu, 4 Jun 2009, Goswin von Brederlow wrote: > Miklos Szeredi <miklos@...redi.hu> writes: > > > On Thu, 04 Jun 2009, Goswin von Brederlow wrote: > >> 3) Are there any alternatives to libaio that don't use threads and > >> support polling? > > > > There are the poll, select and epoll interfaces that block, but are > > able to multiplex events from many file descriptors. > > Unfortunately libaio does not use an fd to pass events between user > and kernel space so one can't use poll, select or epoll to wait for > /dev/fuse or libaio to have some work pending. And none of them > replace libaio functionality in respect to read/write. You can use the eventfd bridge between epoll/poll/select and AIO, that is available by quite some time. This is an old example I made when the patch was posted: http://www.xmailserver.org/eventfd-aio-test.c This uses direct syscall interface, but you get the idea on how to do that with libaio (that I never used). - Davide -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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