Date: Wed, 23 Jun 2021 18:52:21 +0300 From: =?UTF-8?Q?Ionu=C8=9B_Mihalache?= <ionut.mihalache1506@gmail.com> To: Chris <bsd-lists@bsdforge.com> Cc: freebsd-hackers@freebsd.org Subject: Re: libzfs.h and libnvpair.h Message-ID: <CAOxbktZTDzF0%2BBt%2BKcF27C9KuRYQfRQKqJvtVKTsBoknxXOfOQ@mail.gmail.com> In-Reply-To: <dccb45464e129ef6f021c5cca1cf44d8@bsdforge.com> References: <CAOxbktYPLg-Y11FMv6mMS3bVi6zFxNHYrwnBBNGSPAifqeh-uQ@mail.gmail.com> <dccb45464e129ef6f021c5cca1cf44d8@bsdforge.com>
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--000000000000fc631b05c570e4e4 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable When including <libnvpair.h> there is another include for the header <nvpair.h> which redefines functions from <nv.h>. <libzfs.h> and <libnvpair.h> don't seem to have problems, <libzfs.h> includes <libnvpair.h>, I don't have to include it myself. =C3=8En mie., 23 iun. 2021 la 18:19, Chris <bsd-lists@bsdforge.com> a scris= : > On 2021-06-23 06:24, Ionu=C8=9B Mihalache wrote: > > Hello, > > > > I am working into bringing the checkpoint functionality for bhyve and I > > think I could use the zfs functionalities for the implementation. I tri= ed > > to build the world with -DWITH_ZFS and -DWITH_CDDL(I don't exactly know > > what macro or macros should be defined or if there are any, these two I > > tried based on the analysis of the Makefiles) but this doesn't seem to > > work. When I include libzfs.h in order to use the functions from there,= I > > get a compilation error saying that libnvpair.h is not found. After > > investigating the problem I saw that in /usr/include libnvpair.h is not > > present. I copied the files from /usr/local/include but after this ther= e > > was a problem with the redefinition of some functions. Is it a way to > > use(or 'activate') the zfs functionalities directly in the code without > > using syscalls like system or exec(I would like to avoid them as much a= s > > possible). > I regret I haven't got the time to investigate this for you. But on a > 13/amd64 > system, a cd /usr/src followed by a grep -r -F libnvpair.h . > returned some results that may be of interest to you in sorting this out. > ./lib/libbe/be.h:#include <libnvpair.h> for example. The same could be > performed > against libzfs.h. > If including libzfs.h didn't work, and including first libzfs.h along wit= h > libnvpair.h errored with duplicates. It may be the case that you need to > only include libnvpair.h, which may pull in libzfs.h. IDK but thought I'd > mention it. Sorry, that's all I've got. > > HTH > > --Chris > > > > > > Thank you. > --000000000000fc631b05c570e4e4--
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