<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Make fontconfig cache relocatable" href="https://bugs.freedesktop.org/show_bug.cgi?id=101889#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Make fontconfig cache relocatable" href="https://bugs.freedesktop.org/show_bug.cgi?id=101889">bug 101889</a> from <a class="email" href="mailto:akira@tagoh.org" title="Akira TAGOH <akira@tagoh.org>"> Akira TAGOH</a> <pre>Proposed implementation: <a href="https://cgit.freedesktop.org/~tagoh/fontconfig/log/?h=relpath-cache-2">https://cgit.freedesktop.org/~tagoh/fontconfig/log/?h=relpath-cache-2</a> The features of this implementation and highlight: * Writing out FC_FILE value as the fixed string (with the length of PATH_MAX) to allow rewriting it according to the currrent fonts.conf and the location of cache dirs. * Changing the cache basename from the hash to the device ID + inode number. which is required to avoid scanning fonts (and dirs) when the targeted dirs aren't yet loaded as caches. * For those changes, FC_LEAF_FILE, FC_DEV_ID, and FC_INODE properties is added to cache and bumped the cache version to 8. * Set FONTCONFIG_LOOKUP_FONTPATH to 1 to enable this feature. when loading caches through mmap(), need to re-mapping it with MAP_PRIVATE because rewrite has to be done without affecting the original cache. so we can share it with host and bind-mounted env. this is the sort of workaround to reduce the cost on env where this isn't needed. The last one is surely a disadvantage on this implementation because applications can't see the benefit of updates coming from other processes through MAP_SHARED. so they have to restart applications every time when caches is updated. Also this is only enabled for non-win32 so far because I'm not confident if this works on win32.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>