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authorHans de Goede <hdegoede@redhat.com>2011-03-22 16:28:41 +0100
committerGerd Hoffmann <kraxel@redhat.com>2011-06-06 09:14:42 +0200
commit35106c2df2eda83e5f7fea356d80c11fed93df1f (patch)
tree5a655d30bd2572f3493e9af5d62d27c19d56357f /ui
parentd800040fb47fe4500d1f8bf604b9fd129bda9419 (diff)
spice-qemu-char: Fix flow control in client -> guest direction
In the old spice-vmc device we used to have: last_out = virtio_serial_write(&svc->port, p, MIN(len, VMC_MAX_HOST_WRITE)); if (last_out > 0) ... Now in the chardev backend we have: last_out = MIN(len, VMC_MAX_HOST_WRITE); qemu_chr_read(scd->chr, p, last_out); if (last_out > 0) { ... Which causes us to no longer detect if the virtio port is not ready to receive data from us. chardev actually has a mechanism to detect this, but it requires a separate call to qemu_chr_can_read, before calling qemu_chr_read (which return void). This patch uses qemu_chr_can_read to fix the flow control from client to guest. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'ui')
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