int main(int argc, char *argv[]) { enum { MODE_BISECT, MODE_CHART, } mode = MODE_BISECT; Type type = TYPE_KDBUS; int i, pair[2] = { -1, -1 }; _cleanup_free_ char *name = NULL, *bus_name = NULL, *address = NULL, *server_name = NULL; _cleanup_close_ int bus_ref = -1; const char *unique; cpu_set_t cpuset; size_t result; sd_bus *b; pid_t pid; int r; for (i = 1; i < argc; i++) { if (streq(argv[i], "chart")) { mode = MODE_CHART; continue; } else if (streq(argv[i], "legacy")) { type = TYPE_LEGACY; continue; } else if (streq(argv[i], "direct")) { type = TYPE_DIRECT; continue; } assert_se(parse_sec(argv[i], &arg_loop_usec) >= 0); } assert_se(!MODE_BISECT || TYPE_KDBUS); assert_se(arg_loop_usec > 0); if (type == TYPE_KDBUS) { assert_se(asprintf(&name, "deine-mutter-%u", (unsigned) getpid()) >= 0); bus_ref = bus_kernel_create_bus(name, false, &bus_name); if (bus_ref == -ENOENT) exit(EXIT_TEST_SKIP); assert_se(bus_ref >= 0); address = strappend("kernel:path=", bus_name); assert_se(address); } else if (type == TYPE_LEGACY) { const char *e; e = secure_getenv("DBUS_SESSION_BUS_ADDRESS"); assert_se(e); address = strdup(e); assert_se(address); } r = sd_bus_new(&b); assert_se(r >= 0); if (type == TYPE_DIRECT) { assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, pair) >= 0); r = sd_bus_set_fd(b, pair[0], pair[0]); assert_se(r >= 0); r = sd_bus_set_server(b, true, SD_ID128_NULL); assert_se(r >= 0); } else { r = sd_bus_set_address(b, address); assert_se(r >= 0); r = sd_bus_set_bus_client(b, true); assert_se(r >= 0); } r = sd_bus_start(b); assert_se(r >= 0); if (type != TYPE_DIRECT) { r = sd_bus_get_unique_name(b, &unique); assert_se(r >= 0); server_name = strdup(unique); assert_se(server_name); } sync(); setpriority(PRIO_PROCESS, 0, -19); pid = fork(); assert_se(pid >= 0); if (pid == 0) { CPU_ZERO(&cpuset); CPU_SET(0, &cpuset); pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset); safe_close(bus_ref); sd_bus_unref(b); switch (mode) { case MODE_BISECT: client_bisect(address, server_name); break; case MODE_CHART: client_chart(type, address, server_name, pair[1]); break; } _exit(0); } CPU_ZERO(&cpuset); CPU_SET(1, &cpuset); pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset); server(b, &result); if (mode == MODE_BISECT) printf("Copying/memfd are equally fast at %zu bytes\n", result); assert_se(waitpid(pid, NULL, 0) == pid); safe_close(pair[1]); sd_bus_unref(b); return 0; }
int main(int argc, char *argv[]) { enum { MODE_BISECT, MODE_CHART, } mode = MODE_BISECT; int i; _cleanup_free_ char *bus_name = NULL, *address = NULL; _cleanup_close_ int bus_ref = -1; cpu_set_t cpuset; size_t result; sd_bus *b; pid_t pid; int r; log_set_max_level(LOG_DEBUG); for (i = 1; i < argc; i++) { if (streq(argv[i], "chart")) { mode = MODE_CHART; continue; } assert_se(parse_sec(argv[i], &arg_loop_usec) >= 0); } assert_se(arg_loop_usec > 0); bus_ref = bus_kernel_create("deine-mutter", &bus_name); if (bus_ref == -ENOENT) exit(EXIT_TEST_SKIP); assert_se(bus_ref >= 0); address = strappend("kernel:path=", bus_name); assert_se(address); r = sd_bus_new(&b); assert_se(r >= 0); r = sd_bus_set_address(b, address); assert_se(r >= 0); r = sd_bus_start(b); assert_se(r >= 0); sync(); setpriority(PRIO_PROCESS, 0, -19); pid = fork(); assert_se(pid >= 0); if (pid == 0) { CPU_ZERO(&cpuset); CPU_SET(0, &cpuset); pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset); close_nointr_nofail(bus_ref); sd_bus_unref(b); switch (mode) { case MODE_BISECT: client_bisect(address); break; case MODE_CHART: client_chart(address); break; } _exit(0); } CPU_ZERO(&cpuset); CPU_SET(1, &cpuset); pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset); server(b, &result); if (mode == MODE_BISECT) printf("Copying/memfd are equally fast at %zu bytes\n", result); assert_se(waitpid(pid, NULL, 0) == pid); sd_bus_unref(b); return 0; }