From 272ca061714a77597feae1075cdd2d44ebdf5ce3 Mon Sep 17 00:00:00 2001 From: Brian Ashworth Date: Sat, 16 Feb 2019 16:14:27 -0500 Subject: [PATCH] Fix reload freeze when not modsetting current mode This fixes the issue of the display freezing on reload with wlroots#1545. On master, all output configs are applied on reload. This may cause an output to have its config applied up to three times, instead of just once. The three cases are: output name, output identifier, and wildcard. Not only is this inefficient, but it can cause swaybg to be spawned and immediately killed. However, swaybg requires two roundtrips of wl_display (to obtain needed globals) before it enters its normal event loop. Modesetting will roundtrip the wl_display. Without modesetting, waitpid for killing swaybg could block infinitely due to swaybg being blocked by wl_display_roundtrip. This only configured an output once. It either uses the wildcard config or creates an empty wildcard config and applies that. This also fixes a bug where an output would not be reset when there is no output config to apply to it. --- include/sway/config.h | 2 ++ sway/config.c | 5 ++--- sway/config/output.c | 11 +++++++++++ 3 files changed, 15 insertions(+), 3 deletions(-) diff --git a/include/sway/config.h b/include/sway/config.h index 43ea7778..54cdcc90 100644 --- a/include/sway/config.h +++ b/include/sway/config.h @@ -586,6 +586,8 @@ struct output_config *store_output_config(struct output_config *oc); void apply_output_config_to_outputs(struct output_config *oc); +void reset_outputs(void); + void free_output_config(struct output_config *oc); int workspace_output_cmp_workspace(const void *a, const void *b); diff --git a/sway/config.c b/sway/config.c index cd2d18a2..206ca95c 100644 --- a/sway/config.c +++ b/sway/config.c @@ -471,9 +471,8 @@ bool load_main_config(const char *file, bool is_active, bool validating) { } if (is_active) { - for (int i = 0; i < config->output_configs->length; i++) { - apply_output_config_to_outputs(config->output_configs->items[i]); - } + reset_outputs(); + config->reloading = false; if (config->swaynag_config_errors.pid > 0) { swaynag_show(&config->swaynag_config_errors); diff --git a/sway/config/output.c b/sway/config/output.c index f1a06379..0f238715 100644 --- a/sway/config/output.c +++ b/sway/config/output.c @@ -391,6 +391,17 @@ void apply_output_config_to_outputs(struct output_config *oc) { } } +void reset_outputs(void) { + struct output_config *oc = NULL; + int i = list_seq_find(config->output_configs, output_name_cmp, "*"); + if (i >= 0) { + oc = config->output_configs->items[i]; + } else { + oc = store_output_config(new_output_config("*")); + } + apply_output_config_to_outputs(oc); +} + void free_output_config(struct output_config *oc) { if (!oc) { return;