From 453a0c2946da620f99825d39db335e9ea9861829 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Wed, 15 May 2013 19:45:05 +0200 Subject: bus: add support for adding memfds into message payload --- src/libsystemd-bus/test-bus-zero-copy.c | 112 ++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 src/libsystemd-bus/test-bus-zero-copy.c (limited to 'src/libsystemd-bus/test-bus-zero-copy.c') diff --git a/src/libsystemd-bus/test-bus-zero-copy.c b/src/libsystemd-bus/test-bus-zero-copy.c new file mode 100644 index 0000000000..024a0bfddf --- /dev/null +++ b/src/libsystemd-bus/test-bus-zero-copy.c @@ -0,0 +1,112 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2013 Lennart Poettering + + systemd 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. + + systemd 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 systemd; If not, see . +***/ + +#include +#include + +#include "util.h" +#include "log.h" + +#include "sd-bus.h" +#include "sd-memfd.h" +#include "bus-message.h" +#include "bus-error.h" +#include "bus-kernel.h" + +int main(int argc, char *argv[]) { + _cleanup_free_ char *bus_name = NULL, *address = NULL; + void *p; + sd_bus *a, *b; + int r, bus_ref; + sd_bus_message *m; + sd_memfd *f; + + log_set_max_level(LOG_DEBUG); + + bus_ref = bus_kernel_create("deine-mutter", &bus_name); + if (bus_ref == -ENOENT) + return EXIT_TEST_SKIP; + + assert_se(bus_ref >= 0); + + address = strappend("kernel:path=", bus_name); + assert_se(address); + + r = sd_bus_new(&a); + assert_se(r >= 0); + + r = sd_bus_new(&b); + assert_se(r >= 0); + + r = sd_bus_set_address(a, address); + assert_se(r >= 0); + + r = sd_bus_set_address(b, address); + assert_se(r >= 0); + + r = sd_bus_start(a); + assert_se(r >= 0); + + r = sd_bus_start(b); + assert_se(r >= 0); + + r = sd_bus_message_new_method_call(b, ":1.1", "/a/path", "an.inter.face", "AMethod", &m); + assert_se(r >= 0); + + r = sd_bus_message_open_container(m, 'r', "ayay"); + assert_se(r >= 0); + + r = sd_bus_message_append_array_space(m, 'y', 32, &p); + assert_se(r >= 0); + + memset(p, 'L', 32); + + r = sd_memfd_new_and_map(&f, 32, &p); + assert_se(r >= 0); + + memset(p, 'P', 32); + munmap(p, 32); + + r = sd_memfd_set_size(f, 32); + assert_se(r >= 0); + + r = sd_bus_message_append_array_memfd(m, 'y', f); + assert_se(r >= 0); + + r = sd_bus_message_close_container(m); + assert_se(r >= 0); + + r = bus_message_seal(m, 55); + assert_se(r >= 0); + + bus_message_dump(m); + + r = sd_bus_send(b, m, NULL); + assert_se(r >= 0); + + sd_bus_message_unref(m); + + sd_bus_unref(a); + sd_bus_unref(b); + sd_memfd_free(f); + + return 0; +} -- cgit v1.2.3-54-g00ecf