dbus-glib.h里面没有DBusConnection，只有DBusGConnection。

Posted 2023-05-06

我看了下相关的文档，好像大家写dbus-ding-send.c这个文件的时候用的基本都是DBusConnection.我看了下我dbus-glib.h文件里面，根本就没有DBusConnection这个结构体的定义。是不是后面的DBUS的库更新了？然后把这个函数改名了？
#include <glib.h>

#include <dbus/dbus-glib.h>

#include <stdio.h>
static gboolean send_ding(DBusConnection *bus);

int main ()

GMainLoop *loop;

DBusConnection *bus;

DBusError error;

loop = g_main_loop_new(NULL, FALSE);

dbus_error_init (&error);
bus = dbus_bus_get(DBUS_BUS_SESSION, &error);

if (!bus)

g_warning("连接到D-Bus失败: %s", error.message);
dbus_error_free(&error);

return 1;

dbus_connection_setup_with_g_main(bus, NULL);
g_timeout_add(1000, (GSourceFunc)send_ding, bus);

g_main_loop_run(loop);

return 0;

static gboolean send_ding(DBusConnection *bus)


DBusMessage *message;

message = dbus_message_new_signal("/com/burtonini/dbus/ding",
"com.burtonini.dbus.Signal",
"ding");

dbus_message_append_args(message,
DBUS_TYPE_STRING, "ding!",
DBUS_TYPE_INVALID);

dbus_connection_send(bus, message, NULL);
dbus_message_unref(message);

g_print("ding!\n");

return TRUE;


编译：gcc 03.c `pkg-config --cflags --libs glib-2.0 dbus-1`
报错：
03.c:7: error: expected ‘)’ before ‘*’ token
03.c: In function ‘main’:
03.c:15: error: ‘DBusConnection’ undeclared (first use in this function)
03.c:15: error: (Each undeclared identifier is reported only once
03.c:15: error: for each function it appears in.)
03.c:15: error: ‘bus’ undeclared (first use in this function)
03.c:17: error: ‘DBusError’ undeclared (first use in this function)
03.c:17: error: expected ‘;’ before ‘error’
03.c:21: error: ‘error’ undeclared (first use in this function)
03.c:37: error: ‘send_ding’ undeclared (first use in this function)
03.c: At top level:
03.c:45: error: expected ‘)’ before ‘*’ token

还是说我的D-BUS版本安错了？
这是我所有的DBUS有关的信息。
rpm -qa | grep dbus

dbus-1.2.24-7.el6_3.x86_64
dbus-devel-1.2.24-7.el6_3.x86_64
eggdbus-0.6-3.el6.x86_64
dbus-python-0.83.0-6.1.el6.x86_64
dbus-x11-1.2.24-7.el6_3.x86_64
dbus-c++-0.5.0-0.10.20090203git13281b3.1.el6.x86_64
dbus-doc-1.2.24-7.el6_3.noarch
dbus-libs-1.2.24-7.el6_3.x86_64
dbus-glib-0.86-5.el6.x86_64
python-slip-dbus-0.2.20-1.el6_2.noarch
dbus-glib-devel-0.86-5.el6.x86_64

参考技术A 你看的那个例子已经过期了，你想要的头文件已经变成了dbus-glib-lowlevel.h，请参考其他的例子

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