19befb2d5f
This makes callback behaviour more like sd-event or sd-resolve, and creates proper object for unregistering callbacks. Taking the refernce to the slot is optional. If not taken life time of the slot will be bound to the underlying bus object (or in the case of an async call until the reply has been recieved).
187 lines
5.4 KiB
C
187 lines
5.4 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <fcntl.h>
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#include "util.h"
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#include "log.h"
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#include "sd-bus.h"
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#include "bus-message.h"
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#include "bus-error.h"
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#include "bus-kernel.h"
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#include "bus-util.h"
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#include "bus-dump.h"
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int main(int argc, char *argv[]) {
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_cleanup_close_ int bus_ref = -1;
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_cleanup_free_ char *name = NULL, *bus_name = NULL, *address = NULL;
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
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_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
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const char *ua = NULL, *ub = NULL, *the_string = NULL;
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sd_bus *a, *b;
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int r, pipe_fds[2];
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const char *nn;
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log_set_max_level(LOG_DEBUG);
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assert_se(asprintf(&name, "deine-mutter-%u", (unsigned) getpid()) >= 0);
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bus_ref = bus_kernel_create_bus(name, false, &bus_name);
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if (bus_ref == -ENOENT)
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return EXIT_TEST_SKIP;
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assert_se(bus_ref >= 0);
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address = strappend("kernel:path=", bus_name);
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assert_se(address);
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r = sd_bus_new(&a);
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assert_se(r >= 0);
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r = sd_bus_new(&b);
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assert_se(r >= 0);
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r = sd_bus_set_name(a, "a");
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assert_se(r >= 0);
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r = sd_bus_set_address(a, address);
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assert_se(r >= 0);
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r = sd_bus_set_address(b, address);
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assert_se(r >= 0);
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assert_se(sd_bus_negotiate_timestamp(a, 1) >= 0);
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assert_se(sd_bus_negotiate_creds(a, _SD_BUS_CREDS_ALL) >= 0);
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assert_se(sd_bus_negotiate_timestamp(b, 1) >= 0);
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assert_se(sd_bus_negotiate_creds(b, _SD_BUS_CREDS_ALL) >= 0);
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r = sd_bus_start(a);
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assert_se(r >= 0);
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r = sd_bus_start(b);
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assert_se(r >= 0);
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r = sd_bus_get_unique_name(a, &ua);
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assert_se(r >= 0);
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printf("unique a: %s\n", ua);
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r = sd_bus_get_name(a, &nn);
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assert_se(r >= 0);
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printf("name of a: %s\n", nn);
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r = sd_bus_get_unique_name(b, &ub);
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assert_se(r >= 0);
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printf("unique b: %s\n", ub);
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r = sd_bus_get_name(b, &nn);
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assert_se(r >= 0);
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printf("name of b: %s\n", nn);
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r = sd_bus_call_method(a, "this.doesnt.exist", "/foo", "meh.mah", "muh", &error, NULL, "s", "yayayay");
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assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_SERVICE_UNKNOWN));
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assert_se(r == -EHOSTUNREACH);
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r = sd_bus_add_match(b, NULL, "interface='waldo.com',member='Piep'", NULL, NULL);
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assert_se(r >= 0);
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r = sd_bus_emit_signal(a, "/foo/bar/waldo", "waldo.com", "Piep", "sss", "I am a string", "/this/is/a/path", "and.this.a.domain.name");
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assert_se(r >= 0);
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r = sd_bus_try_close(b);
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assert_se(r == -EBUSY);
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r = sd_bus_process_priority(b, -10, &m);
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assert_se(r == -ENOMSG);
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r = sd_bus_process(b, &m);
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assert_se(r > 0);
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assert_se(m);
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bus_message_dump(m, stdout, true);
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assert_se(sd_bus_message_rewind(m, true) >= 0);
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r = sd_bus_message_read(m, "s", &the_string);
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assert_se(r >= 0);
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assert_se(streq(the_string, "I am a string"));
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sd_bus_message_unref(m);
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m = NULL;
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r = sd_bus_request_name(a, "net.x0pointer.foobar", 0);
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assert_se(r >= 0);
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r = sd_bus_message_new_method_call(b, &m, "net.x0pointer.foobar", "/a/path", "an.inter.face", "AMethod");
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assert_se(r >= 0);
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assert_se(pipe2(pipe_fds, O_CLOEXEC) >= 0);
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assert_se(write(pipe_fds[1], "x", 1) == 1);
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pipe_fds[1] = safe_close(pipe_fds[1]);
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r = sd_bus_message_append(m, "h", pipe_fds[0]);
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assert_se(r >= 0);
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pipe_fds[0] = safe_close(pipe_fds[0]);
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r = sd_bus_send(b, m, NULL);
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assert_se(r >= 0);
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for (;;) {
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sd_bus_message_unref(m);
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m = NULL;
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r = sd_bus_process(a, &m);
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assert_se(r > 0);
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assert_se(m);
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bus_message_dump(m, stdout, true);
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assert_se(sd_bus_message_rewind(m, true) >= 0);
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if (sd_bus_message_is_method_call(m, "an.inter.face", "AMethod")) {
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int fd;
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char x;
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r = sd_bus_message_read(m, "h", &fd);
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assert_se(r >= 0);
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assert_se(read(fd, &x, 1) == 1);
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assert_se(x == 'x');
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break;
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}
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}
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r = sd_bus_release_name(a, "net.x0pointer.foobar");
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assert_se(r >= 0);
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r = sd_bus_release_name(a, "net.x0pointer.foobar");
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assert_se(r == -ESRCH);
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r = sd_bus_try_close(a);
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assert_se(r >= 0);
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sd_bus_unref(a);
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sd_bus_unref(b);
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return 0;
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}
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