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Pekka Paalanen 6ffbba3ac1 Use weston_compositor_add_destroy_listener_once() in plugins ... This introduces a new convention of checking through the compositor destroy listener if the plugin is already initialized. If the plugin is already initialized, then the plugin entry function succeeds as a no-op. This makes it safe to load the same plugin multiple times in a running compositor. Currently module loading functions return failure if a plugin is already loaded, but that will change in the future. Therefore we need this other method of ensuring we do not double-initialize a plugin which would lead to list corruptions the very least. All plugins are converted to use the new helper, except: - those that do not have a destroy listener already, and - hmi-controller which does the same open-coded as the common code pattern did not fit there. Plugins should always have a compositor destroy listener registered since they very least allocate a struct to hold their data. Hence omissions are highlighted in code. Backends do not need this because weston_compositor_load_backend() already protects against double-init. GL-renderer does not export a standard module init function so cannot be initialized the usual way and therefore is not vulnerable to double-init. Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>		5 years ago
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backend-drm.h	Rename plugin-registry.h to libweston/plugin-registry.h	6 years ago
backend-fbdev.h	Rename public backend headers	6 years ago
backend-headless.h	headless, gl-renderer: support pbuffer outputs	5 years ago
backend-rdp.h	backend-rdp: allow to force compression off	6 years ago
backend-wayland.h	Rename public backend headers	6 years ago
backend-x11.h	Rename public backend headers	6 years ago
config-parser.h	Rename config-parser.h to libweston/config-parser.h	6 years ago
libweston.h	Use weston_compositor_add_destroy_listener_once() in plugins	5 years ago
matrix.h	Rename matrix.h to libweston/matrix.h	6 years ago
meson.build	libweston: Remove timeline-object and clean-up	5 years ago
plugin-registry.h	Rename plugin-registry.h to libweston/plugin-registry.h	6 years ago
version.h.in	Rename version.h to libweston/version.h	6 years ago
weston-log.h	weston-log: Add a subscription iterator	5 years ago
windowed-output-api.h	Rename windowed-output-api.h to libweston/windowed-output-api.h	6 years ago
xwayland-api.h	Rename xwayland-api.h to libweston/xwayland-api.h	6 years ago
zalloc.h	Rename zalloc.h to libweston/zalloc.h	6 years ago