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compositor/main: Warn out if started over tty/pts

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A possible solution to warn out users that messages will be dropped
otherwise.

Fixes: #858

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
This commit is contained in:
Marius Vlad 2023-12-18 16:14:58 +02:00 committed by Pekka Paalanen
parent 8aa14f0d39
commit 18eebe8af3
1 changed files with 21 additions and 0 deletions
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21
frontend/main.c
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@ -574,6 +574,25 @@ log_uname(void)
usys.version, usys.machine);
}
static void
warn_possible_tty(void)
{
int ret = isatty(fileno(weston_logfile));
if (ret > 0) {
/* isatty returns also if fd is pts */
char *tty_name = ttyname(fileno(weston_logfile));
if (tty_name && !strncmp(tty_name, "/dev/tty", 8)) {
weston_log("WARNING: Weston was started from %s. "
"Messages will be dropped if not written to "
"a file.\n", tty_name);
weston_log_continue(STAMP_SPACE "Use --log for capturing"
" Weston logs to a file.\n");
}
}
}
static struct wet_output_config *
wet_init_parsed_options(struct weston_compositor *ec)
{
@ -3068,6 +3087,8 @@ load_drm_backend(struct weston_compositor *c, int *argc, char **argv,
config.base.struct_size = sizeof(struct weston_drm_backend_config);
config.configure_device = configure_input_device;
warn_possible_tty();
wb = wet_compositor_load_backend(c, WESTON_BACKEND_DRM, &config.base,
drm_heads_changed, NULL);