c - GIO 库 C : DBUS | GIOStream and GIOConnection

Question

尝试用 C 编译以下代码(我不是很擅长)并得到地址边界错误。变量似乎未初始化。

all:
  gcc -Wall -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include test.c `pkg-config --cflags dbus-1` `pkg-config --libs dbus-1 gio-unix-2.0` 



#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gio/gio.h>
#include <glib-2.0/glib.h>

int main (){

    GIOStream stream;
    GDBusConnectionFlags flags = G_DBUS_CONNECTION_FLAGS_NONE;
    GError *gerr = NULL;

    GDBusConnection * gcon = g_dbus_connection_new_sync(&stream,
            NULL,
            flags,
            NULL,
            NULL,
            &gerr);

    return 0;
}

这是 GDBusConnection 的文档和 GIOStream .我不明白代码有什么问题。你能解释一下吗？

Answer 1

再过一段时间后，我发现以下工作:

GInputStream * ginput = g_memory_input_stream_new();
    GOutputStream * goutput = g_memory_output_stream_new (NULL, 0, realloc, free);
    GIOStream * stream = g_simple_io_stream_new(ginput, goutput);

    GDBusConnectionFlags flags = G_DBUS_CONNECTION_FLAGS_NONE;
    GError* gerr = NULL;

    GDBusConnection * gcon = g_dbus_connection_new_sync(stream,
            NULL,
            flags,
            NULL,
            NULL,
            &gerr);
    if (gerr){
        printf(gerr->message, "%s");
    }