Re: [libvirt] [PATCH v2 9/9] admin: Usage example of the new server listing API (not to be pushed)

Not to be actually pushed since majority of this example will be merged into virt-admin once it's ready, i.e. virsh splitting series is merged, but might be good to just see the API's working. --- .gitignore | 1 + Makefile.am | 2 +- configure.ac | 1 + examples/admin/Makefile.am | 25 +++++++++++++++++ examples/admin/listservers.c | 65 ++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 93 insertions(+), 1 deletion(-) create mode 100644 examples/admin/Makefile.am create mode 100644 examples/admin/listservers.c diff --git a/.gitignore b/.gitignore index 6bd41be..d77c13e 100644 --- a/.gitignore +++ b/.gitignore @@ -76,6 +76,7 @@ /docs/libvirt-refs.xml /docs/search.php /docs/todo.html.in +/examples/admin/listservers /examples/object-events/event-test /examples/dominfo/info1 /examples/domsuspend/suspend diff --git a/Makefile.am b/Makefile.am index 91b943b..c14229e 100644 --- a/Makefile.am +++ b/Makefile.am @@ -24,7 +24,7 @@ SUBDIRS = . gnulib/lib include src daemon tools docs gnulib/tests \ examples/dominfo examples/domsuspend examples/apparmor \ examples/xml/nwfilter examples/openauth examples/systemtap \ tools/wireshark examples/dommigrate \ - examples/lxcconvert examples/domtop + examples/lxcconvert examples/domtop examples/admin ACLOCAL_AMFLAGS = -I m4 diff --git a/configure.ac b/configure.ac index 08a0f93..1c2f6e8 100644 --- a/configure.ac +++ b/configure.ac @@ -2809,6 +2809,7 @@ AC_CONFIG_FILES([\ examples/systemtap/Makefile \ examples/xml/nwfilter/Makefile \ examples/lxcconvert/Makefile \ + examples/admin/Makefile \ tools/wireshark/Makefile \ tools/wireshark/src/Makefile]) AC_OUTPUT diff --git a/examples/admin/Makefile.am b/examples/admin/Makefile.am new file mode 100644 index 0000000..8373132 --- /dev/null +++ b/examples/admin/Makefile.am @@ -0,0 +1,25 @@ +## Copyright (C) 2005-2015 Red Hat, Inc. +## +## This library is free software; you can redistribute it and/or +## modify it under the terms of the GNU Lesser General Public +## License as published by the Free Software Foundation; either +## version 2.1 of the License, or (at your option) any later version. +## +## This library is distributed in the hope that it will be useful, +## but WITHOUT ANY WARRANTY; without even the implied warranty of +## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +## Lesser General Public License for more details. +## +## You should have received a copy of the GNU Lesser General Public +## License along with this library. If not, see +## <http://www.gnu.org/licenses/>;. + +INCLUDES = -I$(top_builddir)/include -I$(top_srcdir)/include +LDADDS = $(STATIC_BINARIES) $(WARN_CFLAGS) \ + $(top_builddir)/src/libvirt-admin.la $(COVERAGE_LDFLAGS) + +noinst_PROGRAMS=listservers + +listservers_SOURCES=listservers.c +listservers_LDFLAGS= +listservers_LDADD= $(LDADDS) diff --git a/examples/admin/listservers.c b/examples/admin/listservers.c new file mode 100644 index 0000000..34c1f3a --- /dev/null +++ b/examples/admin/listservers.c @@ -0,0 +1,65 @@ +/* + * listservers.c: Demo program to show listing of available servers + * + * Copyright (C) 2015 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>;. + * + * Author: Erik Skultety <eskultet(a)redhat.com&gt; + */ + +#include <stdio.h> +#include <stdlib.h> +#include <libvirt/libvirt-admin.h> + +int main(void) +{ + int ret = -1; + virAdmConnectPtr conn = NULL; + virAdmServerPtr *srvs = NULL; + int nsrvs = 0; + size_t i; + + /* Connect to an admin server on a specific daemon, NULL in this case means + * connect to libvirtd UNIX socket + */ + if (!(conn = virAdmConnectOpen(NULL, 0))) + goto cleanup; + + /* Obtain a list of available servers on the daemon */ + if ((nsrvs = virAdmConnectListServers(conn, &srvs, 0)) < 0) { + fprintf(stderr, "Failed to obtain list of available servers\n"); + goto cleanup; + } + + printf(" %-5s %-15s\n", "Id", "Name"); + printf("---------------\n"); + for (i = 0; i < nsrvs; i++) + printf(" %-5d %-15s\n", virAdmGetServerID(srvs[i]), + virAdmGetServerName(srvs[i])); + + ret = nsrvs; + + cleanup: + if (conn) + virAdmConnectClose(conn); + if (srvs) { + for (i = 0; i < nsrvs; i++) + virAdmServerFree(srvs[i]); + free(srvs); + } + + return ret; +} -- 2.4.3