Update. cvs/libc-ud-971207

1997-12-08 03:24  Ulrich Drepper  <drepper@cygnus.com>

	* Makeconfig: Define $(rt) to rt if linuxthreads is available.
	* Makefile (subdirs): Replace rt by $(rt).

	* shlib-versions: Use version .2 for NSS modules.

	* grp/fgetgrent_r.c (LINE_PARSER): Call parse_line with extra
	argument.
	* pwd/fgetpwent_r.c: Likewise.
	* spwd/fgetspent_r.c: Likewise.
	* spwd/sgetspent_r.c: Likewise.
	* hesiod/nss_hesiod/hesiod-grp.c (lookup): Add new argument.
	Store error number in *ERRNOP.  Little optimization.
	* hesiod/nss_hesiod/hesiod-pwd.c: Likewise.
	* hesiod/nss_hesiod/hesiod-service.c: Likewise.
	* inet/getnetgrent_r.c (__internal_setnetgrent_reuse): Likewise.
	(__internal_getnetgrent_r): New argument.
	Call __internal_setnetgrent_reuse with new argument.
	(__getnetgrent_r): Call __internal_getnetgrent_r with new argument.
	* inet/netgroup.h: Add argument to prototypes.
	* nis/nisplus-parser.h: Likewise.
	* nis/nss_compat/compat-grp.c: Change everything to store error
	code through provided pointer and not use errno.
	* nis/nss_compat/compat-pwd.c: Likewise.
	* nis/nss_compat/compat-spwd.c: Likewise.
	* nis/nss_nis/nis-alias.c: Likewise.
	* nis/nss_nis/nis-ethers.c: Likewise.
	* nis/nss_nis/nis-grp.c: Likewise.
	* nis/nss_nis/nis-hosts.c: Likewise.
	* nis/nss_nis/nis-netgrp.c: Likewise.
	* nis/nss_nis/nis-network.c: Likewise.
	* nis/nss_nis/nis-proto.c: Likewise.
	* nis/nss_nis/nis-publickey.c: Likewise.
	* nis/nss_nis/nis-pwd.c: Likewise.
	* nis/nss_nis/nis-rpc.c: Likewise.
	* nis/nss_nis/nis-service.c: Likewise.
	* nis/nss_nis/nis-spwd.c: Likewise.
	* nis/nss_nisplus/nisplus-alias.c: Likewise.
	* nis/nss_nisplus/nisplus-ethers.c: Likewise.
	* nis/nss_nisplus/nisplus-grp.c: Likewise.
	* nis/nss_nisplus/nisplus-hosts.c: Likewise.
	* nis/nss_nisplus/nisplus-netgrp.c: Likewise.
	* nis/nss_nisplus/nisplus-network.c: Likewise.
	* nis/nss_nisplus/nisplus-parser.c: Likewise.
	* nis/nss_nisplus/nisplus-proto.c: Likewise.
	* nis/nss_nisplus/nisplus-publickey.c: Likewise.
	* nis/nss_nisplus/nisplus-pwd.c: Likewise.
	* nis/nss_nisplus/nisplus-rpc.c: Likewise.
	* nis/nss_nisplus/nisplus-service.c: Likewise.
	* nis/nss_nisplus/nisplus-spwd.c: Likewise.
	* nss/nss_db/db-XXX.c: Likewise.
	* nss/nss_db/db-alias.c: Likewise.
	* nss/nss_db/db-netgrp.c: Likewise.
	* nss/nss_files/files-XXX.c: Likewise
	* nss/nss_files/files-alias.c: Likewise
	* nss/nss_files/files-netgrp.c: Likewise
	* nss/nss_files/files-parse.c: Likewise
	* nss/getXXbyYY_r.c: Call with __errno_location() as value for new
	parameter of get functions.
	* nss/getXXent_r.c: Likewise.

	* localedata/tst-fmon.c: Print debug info if test fails.

	* rt/Makefile (routines): Add aio_notify.
	* rt/aio.h: Remove non-public definitions.  Add aioinit stuff.
	* rt/aio_cancel.c: Rewrite to support lio_listio and aio_suspend.
	* rt/aio_fsync.c: Likewise.
	* rt/aio_misc.c: Likewise.
	* rt/aio_misc.h: Likewise.
	* rt/aio_read.c: Likewise.
	* rt/aio_read64.c: Likewise.
	* rt/aio_suspend.c: Likewise.
	* rt/aio_write.c: Likewise.
	* rt/aio_write64.c: Likewise.
	* rt/lio_listio.c: Likewise.
	* rt/lio_listio64.c: Likewise.
	* rt/aio_notify.c: New file.

	* sysdeps/generic/bits/sigset.h: Pretty print.

	* sysdeps/posix/pwrite.c: Define weak alias only if function is
	really defined as __pwrite.

	* sysdeps/unix/sysv/linux/pread.c: Rewrite to use syscall directly
	instead of pread64.
	* sysdeps/unix/sysv/linux/pwrite.c: Likewise.

	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=signal]
	(sysdep_routines): Add rt_sigpending and rt_sigreturn.
	* sysdeps/unix/sysv/linux/sigaction.c: Use correct value for sigset_t
	size in syscall.
	* sysdeps/unix/sysv/linux/sigpending.c: Likewise.
	* sysdeps/unix/sysv/linux/sigprocmask.c: Likewise.
	* sysdeps/unix/sysv/linux/sigreturn.c: Likewise.
	* sysdeps/unix/sysv/linux/sigsuspend.c: Likewise.
	* sysdeps/unix/sysv/linux/sigtimedwait.c: Likewise.
	* sysdeps/unix/sysv/linux/sigwaitinfo.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/sigaction.c: Likewise.  Take care
	for ACT being NULL.
	* sysdeps/unix/sysv/linux/syscalls.list: Don't mention user for
	RT signals.
	* sysdeps/unix/sysv/linux/i386/s_pread64.s: Return ENOSYS if
	__NR_pread is not defined.
	* sysdeps/unix/sysv/linux/i386/s_pwrite64.s: Return ENOSYS if
	__NR_pwrite is not defined.

1997-12-07 11:15  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* nis/nss_compat/compat-grp.c: If buffer is to small, set the file
	handle for /etc/group back in some more cases.
	* nis/nss_compat/compat-pwd.c: If buffer is to small, set the file
	handle for /etc/passwd back in some more cases.
	* nis/nss_compat/compat-spwd.c: If buffer is to small, set the file
	handle for /etc/shadow back in some more cases.

1997-12-06 17:00  H.J. Lu  <hjl@gnu.org>

	* sysdeps/posix/sigblock.c (__sigblock): Don't check int mask
	beyound its size.
	* sysdeps/posix/sigsetmask.c (__sigsetmask): Ditto.
	* sysdeps/posix/sigvec.c (convert_mask, __sigvec): Ditto.

1997-12-06 04:38  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/wordsize-32/inttypes.h: Rewrite {str,wcs}to{i,u}max
	handling.  Don't use macros, we need functions.  Use inline functions
	for optimization.
	* sysdeps/wordsize-64/inttypes.h: Likewise.
	* sysdeps/wordsize-32/Makefile: Add strtoimax, stroumax, wcstoimax,
	and wcstoumax.
	* sysdeps/wordsize-64/Makefile: Likewise.
	* sysdeps/wordsize-32/Dist: Likewise.
	* sysdeps/wordsize-64/Dist: Likewise.
	* sysdeps/wordsize-32/strtoimax.c: New file.
	* sysdeps/wordsize-32/strtoumax.c: New file.
	* sysdeps/wordsize-32/wcstoimax.c: New file.
	* sysdeps/wordsize-32/wcstoumax.c: New file.
	* sysdeps/wordsize-64/strtoimax.c: New file.
	* sysdeps/wordsize-64/strtoumax.c: New file.
	* sysdeps/wordsize-64/wcstoimax.c: New file.
	* sysdeps/wordsize-64/wcstoumax.c: New file.

1997-12-04 10:40  Philip Blundell  <pb@nexus.co.uk>

	* sysdeps/generic/wait3.c (__wait3): Use ANSI-style definition so
	that transparent union works.
	* sysdeps/generic/wait4.c (__wait4): Likewise.
	* sysdeps/generic/wait.c (__wait): Likewise.

	* sysdeps/generic/getpeername.c (getpeername): Use socklen_t not
	size_t.

	* sysdeps/generic/syscall.c (syscall): Return value and arg are
	long, to match prototype.

	* malloc/malloc.c (HAVE_MREMAP): Set to 0 for ARM, as we don't
	have mremap() yet.

	* sysdeps/generic/usleep.c (usleep): Returns void, to match prototype.

	* sysdeps/unix/sysv/linux/arm/syscalls.list: New file.

	* sysdeps/generic/bits/time.h: Use __time_t not time_t.

	* sysdeps/generic/bits/resource.h: Include <bits/types.h> for
	__rlim_t.

	* sysdeps/standalone/arm/bits/errno.h (ENOTTY): Added.

	* sysdeps/generic/bits/dirent.h (struct dirent64): Added.

	* io/sys/stat.h (S_ISLNK): Always false if we don't have
	__S_IFLNK.

	* sysdeps/standalone/close.c (_STDIO_H): Define before including
	<bits/stdio_lim.h>.
	* sysdeps/standalone/filedesc.h (_STDIO_H): Likewise.

1997-12-06 01:09  Ulrich Drepper  <drepper@cygnus.com>

	* posix/sys/wait.h: Don't use transparent unions in C++.

1997-12-05  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* time/time.h: Add strfxtime.

	* libc.map: Add tcgetsid, strcasestr, wmemrtombs, wmemrtowcs,
	sysv_signal, strfxtime, pread64, pwrite64.

1997-11-30 21:57  Richard Henderson  <rth@cygnus.com>

	Alpha changes for EGCS:
	* config.h.in (ASM_ALPHA_NG_SYMBOL_PREFIX): New entry.
	* configure.in (libc_cv_gcc_alpha_ng_prefix): New check.
	* sysdeps/alpha/dl-machine.h (_dl_runtime_resolve): Care for prefix.
	(_start): Likewise.
	* sysdeps/unix/sysv/linux/alpha/init-first.h: Likewise.

1 files changed, 98 insertions, 14 deletions

diff --git a/rt/lio_listio.c b/rt/lio_listio.c
index 73df5c2f5c..b389c6a5f6 100644
--- a/rt/lio_listio.c
+++ b/rt/lio_listio.c
@@ -20,11 +20,20 @@
 
 #include <aio.h>
 #include <errno.h>
-#include <semaphore.h>
+#include <stdlib.h>
 
 #include "aio_misc.h"
 
 
+/* We need this special structure to handle asynchronous I/O.  */
+struct async_waitlist
+  {
+    int counter;
+    struct sigevent sigev;
+    struct waitlist list[0];
+  };
+
+
 int
 lio_listio (mode, list, nent, sig)
      int mode;
@@ -32,8 +41,9 @@ lio_listio (mode, list, nent, sig)
      int nent;
      struct sigevent *sig;
 {
+  struct requestlist *requests[nent];
   int cnt;
-  int total = 0;
+  volatile int total = 0;
   int result = 0;
 
   /* Check arguments.  */
@@ -43,26 +53,100 @@ lio_listio (mode, list, nent, sig)
       return -1;
     }
 
-  /* Request the semaphore.  */
-  sem_wait (&__aio_requests_sema);
+  /* Request the mutex.  */
+  pthread_mutex_lock (&__aio_requests_mutex);
 
   /* Now we can enqueue all requests.  Since we already acquired the
-     semaphore the enqueue function need not do this.  */
+     mutex the enqueue function need not do this.  */
   for (cnt = 0; cnt < nent; ++cnt)
     if (list[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP)
-      if (__aio_enqueue_request ((aiocb_union *) list[cnt],
-				 list[cnt]->aio_lio_opcode, 0) >= 0)
-	/* Successfully enqueued.  */
-	++total;
+      {
+	requests[cnt] =  __aio_enqueue_request ((aiocb_union *) list[cnt],
+						list[cnt]->aio_lio_opcode);
+
+	if (requests[cnt] != NULL)
+	  /* Successfully enqueued.  */
+	  ++total;
+	else
+	  /* Signal that we've seen an error.  `errno' and the error code
+	     of the aiocb will tell more.  */
+	  result = -1;
+      }
+
+  if (total == 0)
+    {
+      /* We don't have anything to do except signalling if we work
+	 asynchronously.  */
+      if (mode == LIO_NOWAIT)
+	__aio_notify_only (sig);
+    }
+  else if (mode == LIO_WAIT)
+    {
+      pthread_cond_t cond;
+      struct waitlist waitlist[nent];
+      int oldstate;
+
+      total = 0;
+      for (cnt = 0; cnt < nent; ++cnt)
+	if (list[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP
+	    && requests[cnt] != NULL)
+	  {
+	    waitlist[cnt].cond = &cond;
+	    waitlist[cnt].next = requests[cnt]->waiting;
+	    waitlist[cnt].counterp = NULL;
+	    waitlist[cnt].sigevp = NULL;
+	    requests[cnt]->waiting = &waitlist[cnt];
+	    ++total;
+	  }
+
+      /* Since `pthread_cond_wait'/`pthread_cond_timedwait' are cancelation
+	 points we must be careful.  We added entries to the waiting lists
+	 which we must remove.  So defer cancelation for now.  */
+      pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, &oldstate);
+
+      while (total > 0)
+	if (pthread_cond_wait (&cond, &__aio_requests_mutex) == 0)
+	  --total;
+
+      /* Now it's time to restore the cancelation state.  */
+      pthread_setcancelstate (oldstate, NULL);
+    }
+  else
+    {
+      struct async_waitlist *waitlist;
+
+      waitlist = (struct async_waitlist *)
+	malloc (sizeof (struct async_waitlist)
+		+ (nent * sizeof (struct waitlist)));
+
+      if (waitlist == NULL)
+	{
+	  __set_errno (EAGAIN);
+	  result = -1;
+	}
       else
-	/* Signal that we've seen an error.  `errno' and the error code
-	   of the aiocb will tell more.  */
-	result = -1;
+	{
+	  total = 0;
 
+	  for (cnt = 0; cnt < nent; ++cnt)
+	    if (list[cnt] != NULL && list[cnt]->aio_lio_opcode != LIO_NOP
+		&& requests[cnt] != NULL)
+	      {
+		waitlist->list[cnt].cond = NULL;
+		waitlist->list[cnt].next = requests[cnt]->waiting;
+		waitlist->list[cnt].counterp = &waitlist->counter;
+		waitlist->list[cnt].sigevp = &waitlist->sigev;
+		requests[cnt]->waiting = &waitlist->list[cnt];
+		++total;
+	      }
 
+	  waitlist->counter = total;
+	  waitlist->sigev = *sig;
+	}
+    }
 
-  /* Release the semaphore.  */
-  sem_post (&__aio_requests_sema);
+  /* Release the mutex.  */
+  pthread_mutex_unlock (&__aio_requests_mutex);
 
   return result;
 }