Po Lu 0709e03f88 Allow quitting from Android content provider operations ... * doc/emacs/android.texi (Android Document Providers): Say that quitting is now possible. * java/org/gnu/emacs/EmacsNative.java (EmacsNative): New functions `safSyncAndReadInput', `safync' and `safPostRequest'. * java/org/gnu/emacs/EmacsSafThread.java: New file. Move cancel-able SAF operations here. * java/org/gnu/emacs/EmacsService.java (EmacsService): Allow quitting from most SAF operations. * src/androidvfs.c (android_saf_exception_check): Return EINTR if OperationCanceledException is received. (android_saf_stat, android_saf_access) (android_document_id_from_name, android_saf_tree_opendir_1) (android_saf_file_open): Don't allow reentrant calls from async input handlers. (NATIVE_NAME): Implement new synchronization primitives for JNI. (android_vfs_init): Initialize new class. * src/dired.c (open_directory): Handle EINTR from opendir. * src/sysdep.c: Describe which operations may return EINTR on Android.		2023-07-28 15:19:37 +08:00
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emacs	Allow quitting from Android content provider operations	2023-07-28 15:19:37 +08:00