我想在 gtk 中使用 gio 套接字编写一个客户端服务器的东西,我找到了一个将数据发送到服务器的示例代码,但是,我想要的更多的是读取服务器发送的数据/回复。下面是示例代码
#include <glib.h>
#include <gio/gio.h>
int main (int argc, char *argv[])
{
/* initialize glib */
g_type_init ();
GError * error = NULL;
/* create a new connection */
GSocketConnection * connection = NULL;
GSocketClient * client = g_socket_client_new();
/* connect to the host */
connection = g_socket_client_connect_to_host (client,
(gchar*)"localhost",
1500, /* your port goes here */
NULL,
&error);
/* don't forget to check for errors */
if (error != NULL)
{
g_error (error->message);
}
else
{
g_print ("Connection successful!\n");
}
/* use the connection */
GInputStream * istream = g_io_stream_get_input_stream (G_IO_STREAM (connection));
GOutputStream * ostream = g_io_stream_get_output_stream (G_IO_STREAM (connection));
g_output_stream_write (ostream,
"Hello server!", /* your message goes here */
13, /* length of your message */
NULL,
&error);
/* don't forget to check for errors */
if (error != NULL)
{
g_error (error->message);
}
return 0;
}
上面的代码适用于向服务器发送数据,但是当我尝试从输入流中读取它时,它会进入阻塞状态。我的阅读消息功能看起来像这样
void readMessage()
{
char buffer[2048];
GInputStream * istream = g_io_stream_get_input_stream (G_IO_STREAM(connection));
gssize bytes;
bytes = g_input_stream_read(istream, buffer, sizeof buffer, NULL, NULL);
buffer[bytes] = '\0';
g_print ("%"G_GSSIZE_FORMAT" bytes read: %s\n", bytes, buffer);
}