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Re: [Qemu-devel] [PULL 7/8] gtk: Fix -serial vc
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] [PULL 7/8] gtk: Fix -serial vc |
Date: |
Sun, 04 May 2014 10:35:32 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
On 2014-04-29 11:46, Gerd Hoffmann wrote:
> From: Cole Robinson <address@hidden>
>
> Try kicking off a rhel5 text install over serial, the text menu navigation
> is all messed up, and some of the kernel boot messages are randomly
> corrupted.
>
> Drop use of a pty and just use vte infrastructure for reading and writing.
> This fixes the above corruption, and is simpler to boot.
>
> (I don't know what was wrong with the original code though. FWIW this is
> what virt-manager has done for years).
>
> Signed-off-by: Cole Robinson <address@hidden>
> Signed-off-by: Gerd Hoffmann <address@hidden>
> ---
> ui/gtk.c | 41 +++++++++--------------------------------
> 1 file changed, 9 insertions(+), 32 deletions(-)
>
> diff --git a/ui/gtk.c b/ui/gtk.c
> index c85aea3..1465a38 100644
> --- a/ui/gtk.c
> +++ b/ui/gtk.c
> @@ -115,7 +115,6 @@ typedef struct VirtualConsole
> GtkWidget *scrolled_window;
> CharDriverState *chr;
> #endif
> - int fd;
> } VirtualConsole;
>
> typedef struct GtkDisplayState
> @@ -1162,9 +1161,12 @@ static gboolean gd_focus_out_event(GtkWidget *widget,
>
> static int gd_vc_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
> {
> +#if defined(CONFIG_VTE)
> VirtualConsole *vc = chr->opaque;
>
> - return vc ? write(vc->fd, buf, len) : len;
> + vte_terminal_feed(VTE_TERMINAL(vc->terminal), (const char *)buf, len);
> +#endif
> + return len;
> }
>
> static int nb_vcs;
> @@ -1190,19 +1192,12 @@ void early_gtk_display_init(void)
> }
>
> #if defined(CONFIG_VTE)
> -static gboolean gd_vc_in(GIOChannel *chan, GIOCondition cond, void *opaque)
> +static gboolean gd_vc_in(VteTerminal *terminal, gchar *text, guint size,
> + gpointer user_data)
> {
> - VirtualConsole *vc = opaque;
> - uint8_t buffer[1024];
> - ssize_t len;
> -
> - len = read(vc->fd, buffer, sizeof(buffer));
> - if (len <= 0) {
> - return FALSE;
> - }
> -
> - qemu_chr_be_write(vc->chr, buffer, len);
> + VirtualConsole *vc = user_data;
>
> + qemu_chr_be_write(vc->chr, (uint8_t *)text, (unsigned int)size);
> return TRUE;
> }
> #endif
> @@ -1214,13 +1209,8 @@ static GSList *gd_vc_init(GtkDisplayState *s,
> VirtualConsole *vc, int index, GSL
> const char *label;
> char buffer[32];
> char path[32];
> -#if VTE_CHECK_VERSION(0, 26, 0)
> - VtePty *pty;
> -#endif
> - GIOChannel *chan;
> GtkWidget *scrolled_window;
> GtkAdjustment *vadjustment;
> - int master_fd, slave_fd;
>
> snprintf(buffer, sizeof(buffer), "vc%d", index);
> snprintf(path, sizeof(path), "<QEMU>/View/VC%d", index);
> @@ -1239,16 +1229,7 @@ static GSList *gd_vc_init(GtkDisplayState *s,
> VirtualConsole *vc, int index, GSL
> gtk_accel_map_add_entry(path, GDK_KEY_2 + index, HOTKEY_MODIFIERS);
>
> vc->terminal = vte_terminal_new();
> -
> - master_fd = qemu_openpty_raw(&slave_fd, NULL);
> - g_assert(master_fd != -1);
> -
> -#if VTE_CHECK_VERSION(0, 26, 0)
> - pty = vte_pty_new_foreign(master_fd, NULL);
> - vte_terminal_set_pty_object(VTE_TERMINAL(vc->terminal), pty);
> -#else
> - vte_terminal_set_pty(VTE_TERMINAL(vc->terminal), master_fd);
> -#endif
> + g_signal_connect(vc->terminal, "commit", G_CALLBACK(gd_vc_in), vc);
>
> vte_terminal_set_scrollback_lines(VTE_TERMINAL(vc->terminal), -1);
>
> @@ -1263,7 +1244,6 @@ static GSList *gd_vc_init(GtkDisplayState *s,
> VirtualConsole *vc, int index, GSL
>
> vte_terminal_set_size(VTE_TERMINAL(vc->terminal), 80, 25);
>
> - vc->fd = slave_fd;
> vc->chr->opaque = vc;
> vc->scrolled_window = scrolled_window;
>
> @@ -1281,9 +1261,6 @@ static GSList *gd_vc_init(GtkDisplayState *s,
> VirtualConsole *vc, int index, GSL
> vc->chr->init(vc->chr);
> }
>
> - chan = g_io_channel_unix_new(vc->fd);
> - g_io_add_watch(chan, G_IO_IN, gd_vc_in, vc);
> -
> #endif /* CONFIG_VTE */
> return group;
> }
>
This commit somehow messes up the monitor vc: Fire up qemu-system-x86_64
and switch to console 2 (monitor). You'll find it formatted as if the
console was only ~10 chars wide during printout of the monitor
greetings. When typing, everything is fine again. Maybe an ordering
issue that was only revealed by this commit, dunno yet.
Jan
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- Re: [Qemu-devel] [PULL 7/8] gtk: Fix -serial vc,
Jan Kiszka <=