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* sysdeps/mach/hurd/fork.c (LOSE): Put `goto lose' in dead code

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so the label is not considered unused.

	* sysdeps/mach/hurd/pwrite64.c: New file.
	* sysdeps/mach/hurd/pread64.c: New file.

	* sysdeps/mach/hurd/pread.c
	(__libc_pread): Define this name, with __pread as an alias.
	* sysdeps/mach/hurd/pwrite.c
	(__libc_pwrite): Define this name, with __pwrite as an alias.

	Implement POSIX "shared memory objects" as regular
	files residing in the /var/run/shm/ directory.
	This works on any system that supports _POSIX_MAPPED_FILES,
	to make it also support _POSIX_SHARED_MEMORY_OBJECTS.
	* sysdeps/posix/shm_open.c: New file.
	* sysdeps/posix/shm_unlink.c: New file.
	* sysdeps/mach/hurd/bits/posix_opt.h
	(_POSIX_SHARED_MEMORY_OBJECTS): Define it.

	* rt/aio_notify.c (__aio_notify_only) [! _POSIX_REALTIME_SIGNALS]:
	Use raise instead of __aio_sigqueue.
This commit is contained in:
Roland McGrath
2001-06-14 05:32:26 +00:00
parent c0c71388a7
commit 221dc560bb
10 changed files with 293 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
rt/aio_notify.c
View File

@ -1,5 +1,5 @@
/* Notify initiator of AIO request.
Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
Copyright (C) 1997,98,99,2000,01 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@ -58,10 +58,19 @@ __aio_notify_only (struct sigevent *sigev, pid_t caller_pid)
result = -1;
}
else if (sigev->sigev_notify == SIGEV_SIGNAL)
/* We have to send a signal. */
if (__aio_sigqueue (sigev->sigev_signo, sigev->sigev_value, caller_pid)
< 0)
result = -1;
{
/* We have to send a signal. */
#if _POSIX_REALTIME_SIGNALS
/* Note that the standard gives us the option of using a plain
non-queuing signal here when SA_SIGINFO is not set for the signal. */
if (__aio_sigqueue (sigev->sigev_signo, sigev->sigev_value, caller_pid)
< 0)
result = -1;
#else
/* There are no queued signals on this system at all. */
result = raise (sigev->sigev_signo);
#endif
}
return result;
}