diff options
Diffstat (limited to 'libdiskfs/diskfs.h')
| -rw-r--r-- | libdiskfs/diskfs.h | 57 |
1 files changed, 2 insertions, 55 deletions
diff --git a/libdiskfs/diskfs.h b/libdiskfs/diskfs.h index 6619844e..08dc2a8d 100644 --- a/libdiskfs/diskfs.h +++ b/libdiskfs/diskfs.h @@ -822,35 +822,6 @@ diskfs_notice_dirchange (struct node *dp, enum dir_changed_type type, The new node will have one hard reference and no light references. */ struct node *diskfs_make_node (struct disknode *dn); -/* The following two calls are actually macros. */ -/* Begin executing code which might fault. This contains a call - to setjmp and so callers must be careful with register variables. - The first time through, this returns 0. If the code faults - accessing a region of memory registered with - diskfs_register_memory_fault_area, then this routine will return - again with the error number as reported by the pager. */ -/* int diskfs_catch_exception (void); */ - -/* After calling diskfs_catch_exception, this routine must be called - before exiting the function which called diskfs_catch_exception. - It will cancel the fault protection installed by diskfs_catch_exception. */ -/* void diskfs_end_catch_exception (void); */ - -/* Register a region of memory for protected fault status as described - above for diskfs_catch_exception. This should generally be done - for any vm_map of the filesystem's own data. This will mark memory - at ADDR continuing for LEN bytes to be mapped from pager P at offset - OFF. Any memory exceptions in this region will be looked up with - pager_get_error (until the XP interface is fixed); this is the only - use made of arguments P and OFF. */ -void diskfs_register_memory_fault_area (struct pager *p, vm_address_t off, - void *addr, long len); - -/* Remove the registration of a region registered with - diskfs_register_memory_fault_area; the region is that at ADDR - continuing for LEN bytes. */ -void diskfs_unregister_memory_fault_area (void *addr, long len); - /* The library also exports the following functions; they are not generally useful unless you are redefining other functions the library provides. */ @@ -1044,31 +1015,7 @@ error_t diskfs_device_read_sync (off_t addr, vm_address_t *data, size_t len); /* Make errors go somewhere reasonable. */ void diskfs_console_stdio (); - -/* Exception handling */ -#include <cthreads.h> -#include <setjmp.h> -struct thread_stuff -{ - jmp_buf buf; - struct thread_stuff *link; -}; -#define diskfs_catch_exception() \ - ({ \ - struct thread_stuff *tmp; \ - tmp = __builtin_alloca (sizeof (struct thread_stuff)); \ - tmp->link = (struct thread_stuff *)cthread_data (cthread_self ()); \ - cthread_set_data (cthread_self (), (any_t)tmp); \ - setjmp (tmp->buf); \ - }) - -#define diskfs_end_catch_exception() \ - (void) ({ \ - struct thread_stuff *tmp; \ - tmp = (struct thread_stuff *)cthread_data (cthread_self ()); \ - (void) cthread_set_data (cthread_self (), (any_t)tmp->link); \ - }) - -#endif +#endif /* hurd/diskfs.h */ + |