parent
8281e714e9
commit
6aac151d76
1
.gitignore
vendored
1
.gitignore
vendored
@ -234,3 +234,4 @@ gnome-shell-2.31.5.tar.bz2
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/gnome-shell-47.1.tar.xz
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/gnome-shell-47.2.tar.xz
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/gnome-shell-47.3.tar.xz
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/gnome-shell-47.4.tar.xz
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@ -1,114 +0,0 @@
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From 4ad7120d0188dcf21146da02637f82bac2ac7ad6 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
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Date: Wed, 29 Jan 2025 02:46:44 +0100
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Subject: [PATCH] st/theme: Reuse stylesheets if possible
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The following happens when processing an `@import()` rule:
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1. `_st_theme_resolve_url()` to resolve file
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2. `insert_stylesheet()` to track file/sheet
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a. take ownership of file/sheet (ref)
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b. use file as key in `stylesheets_by_file` hash table
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c. use file as value in `files_by_stylesheet` hash table
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3. release reference to file
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This leads to a refcount error when importing a file that
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was already parsed before:
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1. file start with refcount 1
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2. `insert_stylesheet()`
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a. increases refcount to 2
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b. inserting into `stylesheets_by_file` *decreases* the
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passed-in key if the key already exists
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c. `files_by_stylesheet` now tracks a file with recount 1
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3. releases the last reference to file
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The file object tracked in `files_by_stylesheet` is now invalid,
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and accessing it results in a crash.
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Avoid this issue by reusing existing stylesheets, so we don't insert
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a stylesheet that's already tracked.
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As a side-effect, this also saves us from re-parsing the same file
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unnecessarily.
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Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/7306
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---
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src/st/st-theme.c | 32 ++++++++++++++++++++++++++------
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1 file changed, 26 insertions(+), 6 deletions(-)
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diff --git a/src/st/st-theme.c b/src/st/st-theme.c
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index 9867ee1510..9ad99e2b1a 100644
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--- a/src/st/st-theme.c
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+++ b/src/st/st-theme.c
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@@ -244,6 +244,27 @@ insert_stylesheet (StTheme *theme,
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g_hash_table_insert (theme->files_by_stylesheet, stylesheet, file);
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}
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+static CRStyleSheet *
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+resolve_stylesheet (StTheme *theme,
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+ GFile *file,
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+ GError **error)
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+{
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+ CRStyleSheet *sheet;
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+
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+ sheet = g_hash_table_lookup (theme->stylesheets_by_file, file);
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+ if (sheet)
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+ {
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+ cr_stylesheet_ref (sheet);
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+ return sheet;
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+ }
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+
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+ sheet = parse_stylesheet (file, error);
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+ if (sheet)
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+ insert_stylesheet (theme, file, sheet);
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+
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+ return sheet;
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+}
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+
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/**
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* st_theme_load_stylesheet:
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* @theme: a #StTheme
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@@ -261,13 +282,12 @@ st_theme_load_stylesheet (StTheme *theme,
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{
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CRStyleSheet *stylesheet;
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- stylesheet = parse_stylesheet (file, error);
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+ stylesheet = resolve_stylesheet (theme, file, error);
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if (!stylesheet)
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return FALSE;
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stylesheet->app_data = GUINT_TO_POINTER (TRUE);
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- insert_stylesheet (theme, file, stylesheet);
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cr_stylesheet_ref (stylesheet);
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theme->custom_stylesheets = g_slist_prepend (theme->custom_stylesheets, stylesheet);
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g_signal_emit (theme, signals[STYLESHEETS_CHANGED], 0);
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@@ -884,6 +904,7 @@ add_matched_properties (StTheme *a_this,
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if (import_rule->sheet == NULL)
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{
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+ CRStyleSheet *sheet = NULL;
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GFile *file = NULL;
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if (import_rule->url->stryng && import_rule->url->stryng->str)
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@@ -891,13 +912,12 @@ add_matched_properties (StTheme *a_this,
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file = _st_theme_resolve_url (a_this,
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a_nodesheet,
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import_rule->url->stryng->str);
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- import_rule->sheet = parse_stylesheet (file, NULL);
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+ sheet = resolve_stylesheet (a_this, file, NULL);
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}
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- if (import_rule->sheet)
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+ if (sheet)
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{
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- insert_stylesheet (a_this, file, import_rule->sheet);
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- /* refcount of stylesheets starts off at zero, so we don't need to unref! */
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+ import_rule->sheet = sheet;
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}
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else
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{
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--
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2.48.1
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@ -8,7 +8,7 @@
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%endif
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Name: gnome-shell
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Version: 47.3
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Version: 47.4
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Release: %autorelease
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Summary: Window management and application launching for GNOME
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@ -44,7 +44,6 @@ Patch: 0001-st-texture-cache-purge-on-resume.patch
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Patch: fix-some-js-warnings.patch
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Patch: 0001-data-Update-generated-stylesheets.patch
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Patch: 0001-theme-Welcome-Illustration.patch
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Patch: 0001-st-theme-Reuse-stylesheets-if-possible.patch
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%define eds_version 3.45.1
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%define gnome_desktop_version 44.0-7
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2
sources
2
sources
@ -1 +1 @@
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SHA512 (gnome-shell-47.3.tar.xz) = d9d553ec0ccdd98fb7878b7bd7f64f966320d34df75c10967c85ceb79edf13a70d0c0898abdc46f3c790246dc387b4586dbfd0cc47ef321ab858f5c4863cc6e2
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SHA512 (gnome-shell-47.4.tar.xz) = 65a0dab1bdd6957e52c624fde21ff3fe1d189aa0d6e2a13035ab53ab51e82ff8a88d28a5308c77d4650d5e1b0f643be702ee767379c96a10308752924c79dd72
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