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| author | Roland McGrath <roland@gnu.org> | 1995-08-14 22:49:23 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1995-08-14 22:49:23 +0000 |
| commit | 54da5be39c868b55c234c23bb38eb42babc084d7 (patch) | |
| tree | 64fe7cd0dfeaef3a8b6f469f3a7a83a3a974067a /hurd/hurd.h | |
| parent | 047f282dd7e83f24abce284dcc9d2d78cab42f9b (diff) | |
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Mon Aug 14 16:51:13 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* hurd/thread-cancel.c: New file.
* sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler): In
rpc_wait case, frob mach_msg args to set timeout on receive.
(_hurdsig_rcv_interrupted_p): Function removed.
* sysdeps/mach/hurd/alpha/trampoline.c: Likewise.
* sysdeps/mach/hurd/hppa/trampoline.c: Likewise.
* sysdeps/mach/hurd/mips/trampoline.c: Likewise.
* hurd/intr-msg.c: New file.
* hurd/hurd/signal.h (struct hurd_sigstate): New member `cancel'.
(_hurdsig_rcv_interrupted_p): Declaration removed.
(HURD_EINTR_RPC): Macro removed.
(_hurd_longjmp_thread_state, _hurd_interrupted_rpc_timeout): Declare
these.
* hurd/intr-rpc.h: New file.
* hurd/intr-rpc.defs: Just import intr-rpc.h.
* hurd/hurdsig.c (_hurd_interrupted_rpc_timeout): New variable.
(interrupted_reply_port_location): Take new flag arg; only catch
faults if it's set.
(abort_rpcs): Rename to _hurdsig_abort_rpcs; take same new flag arg.
No longer use _hurdsig_rcv_interrupted_p; instead compare PC to
&_hurd_intr_rpc_msg_in_trap. If before it, mutate state to simulate
MACH_SEND_INTERRUPTED return; on it, interrupt the operation. All
callers changed.
* hurd/hurd.h (hurd_thread_cancel, hurd_check_cancel): Declare these.
* hurd/Makefile (distribute): Remove intr-rpc.awk.
(sig): Add thread-cancel.
(transform-user-stub, transform-user-stub-output): Variables removed.
* sysdeps/mach/hurd/dl-sysdep.c: Change all RPCs from
`__hurd_intr_rpc_*' to `__*'.
(_hurd_intr_rpc_mach_msg): New function.
(_hurd_thread_sigstate): Function removed.
* sysdeps/mach/hurd/ioctl.c: Use _hurd_intr_rpc_mach_msg function,
instead of __mach_msg inside HURD_EINTR_RPC macro.
* sysdeps/generic/morecore.c [__GNU_LIBRARY__]: Declare `__sbrk'
to take ptrdiff_t arg.
* sysdeps/mach/hurd/fork.c: Remove _hurd_longjmp_thread_state decl.
* sysdeps/mach/hurd/kill.c (kill_pid): Don't make `inline'.
* libc-symbols.h [GCC >= 2.7] (strong_alias, weak_symbol,
weak_alias): Use `extern' storage class.
Diffstat (limited to 'hurd/hurd.h')
| -rw-r--r-- | hurd/hurd.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hurd/hurd.h b/hurd/hurd.h index e0ba62eede..1b4db17efe 100644 --- a/hurd/hurd.h +++ b/hurd/hurd.h @@ -286,6 +286,16 @@ extern task_t __pid2task (pid_t pid), pid2task (pid_t pid); extern thread_t hurd_thread_self (void); +/* Cancel pending operations on THREAD. If it is doing an interruptible RPC, + that RPC will now return EINTR; otherwise, the "cancelled" flag will be + set, causing the next `hurd_check_cancel' call to return nonzero or the + next interruptible RPC to return EINTR (whichever is called first). */ +extern error_t hurd_thread_cancel (thread_t thread); + +/* Test and clear the calling thread's "cancelled" flag. */ +extern int hurd_check_cancel (void); + + /* Return the io server port for file descriptor FD. This adds a Mach user reference to the returned port. On error, sets `errno' and returns MACH_PORT_NULL. */ |