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authorLennart Poettering <lennart@poettering.net>2013-05-15 19:45:05 +0200
committerLennart Poettering <lennart@poettering.net>2013-05-15 19:45:45 +0200
commit453a0c2946da620f99825d39db335e9ea9861829 (patch)
treecb994a26bf2b84d0c6090e88d8ccb113aeef37e6 /src/libsystemd-bus/test-bus-zero-copy.c
parent99271804172f6ac51be9556b2bdf37d6a7e952bc (diff)
bus: add support for adding memfds into message payload
Diffstat (limited to 'src/libsystemd-bus/test-bus-zero-copy.c')
-rw-r--r--src/libsystemd-bus/test-bus-zero-copy.c112
1 files changed, 112 insertions, 0 deletions
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 <http://www.gnu.org/licenses/>.
+***/
+
+#include <fcntl.h>
+#include <sys/mman.h>
+
+#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;
+}