[Spice-devel] How to check if the spice-streaming-agent works correctly

[Uri Lublin]

On 04/23/2018 10:48 AM, 孙得霖 wrote:
> Hello, I have some difficulties with spice-streaming-agent, can you help me. >
> when I run spice-streaming-agent, it can not 
> read_command(have_something_to_read always return 0).
> ./src/spice-streaming-agent.ccp:static int have_something_to_read(int 
> timeout)


Hi,

I had a similar problem.
In my case it was due to changing the name of the char-device.
I had to change my command line.
See below for more.

> {
>      struct pollfd pollfd = {streamfd, POLLIN, 0};
> 
>      if (poll(&pollfd, 1, timeout) < 0) {
>          syslog(LOG_ERR, "poll FAILED\n");
>          return -1;
>      }
> 
>      if (pollfd.revents == POLLIN) {
>          return 1;
>      }
> 
>      return 0;
> }
> 
> system(centOS-7.2):
> # uname -a
> Linux localhost.localdomain 3.10.0-514.el7.x86_64 #1 SMP Tue Nov 22 
> 16:42:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
> cpuinfo:Intel(R) Xeon(R) CPU E3-1245 v6 @ 3.70GHz
> 
> 
> Steps as follows:
> 1.host command line:
> /usr/libexec/qemu-kvm -m 1024 -name f15 -drive 
> file=/root/centos-base.img,if=virtio -vga qxl  -spice 
> port=5900,disable-ticketing -net nic,macaddr=00:A1:00:00:00:1A -net 
> tap,script=/etc/qemu-ifup \
> -device virtio-serial-pci -device 

Try adding an id to the virtio-serial-pci device, e.g.
-device virtio-serial-pci,id=virtio-serial0

Uri.

> virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel1,id=channel1,name=org.spice-space.stream.0 
> -chardev spiceport,name=org.spice-space.stream.0,id=charchannel1



> 
> Bus 'virtio-serial0.0' not found, So I *delete 
> "bus=virtio-serial0.0"*(is it right?)
> /usr/libexec/qemu-kvm -m 1024 -name f15 -drive 
> file=/root/centos-base.img,if=virtio -vga qxl  -spice 
> port=5900,disable-ticketing -net nic,macaddr=00:A1:00:00:00:1A -net 
> tap,script=/etc/qemu-ifup \
> -device virtio-serial-pci -device 
> virtserialport,nr=1,chardev=charchannel1,id=channel1,name=org.spice-space.stream.0 
> -chardev spiceport,name=org.spice-space.stream.0,id=charchannel1
> 
> 2.start VM and install spice-streaming-agent:
> ./autogen
> make -j 8
> make install
> 
> # ls /dev/virtio-ports/
> org.spice-space.stream.0
> 
> 3.run spice-streaming-agent
> 
> Have some questions:
> 1.spice-streaming-agent can not read_command, I don't know the reason 
> for the failure.
> 2.How to check if the spice-streaming-agent works correctly（encode 
> stream and send it to client）
> 
> 
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