diff options
author | Ulrich Drepper <drepper@redhat.com> | 1997-12-08 03:06:47 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1997-12-08 03:06:47 +0000 |
commit | d71b808a96f0fd1b6cd82c41698b518bf345692b (patch) | |
tree | 7b86cfd6b465c72888d7e85a61c08cafabf5747b /rt/aio_suspend.c | |
parent | 6195235142bd246d972cf1d88b4e208071a3e318 (diff) | |
download | glibc-d71b808a96f0fd1b6cd82c41698b518bf345692b.zip glibc-d71b808a96f0fd1b6cd82c41698b518bf345692b.tar.gz glibc-d71b808a96f0fd1b6cd82c41698b518bf345692b.tar.bz2 |
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.
Diffstat (limited to 'rt/aio_suspend.c')
-rw-r--r-- | rt/aio_suspend.c | 79 |
1 files changed, 76 insertions, 3 deletions
diff --git a/rt/aio_suspend.c b/rt/aio_suspend.c index 75bf9ba..6123b7b 100644 --- a/rt/aio_suspend.c +++ b/rt/aio_suspend.c @@ -40,16 +40,89 @@ aio_suspend (list, nent, timeout) int nent; const struct timespec *timeout; { + pthread_cond_t cond; + struct waitlist waitlist[nent]; + struct requestlist *requestlist[nent]; int cnt; + int result = 0; + + /* Request the mutex. */ + pthread_mutex_lock (&__aio_requests_mutex); /* First look whether there is already a terminated request. */ for (cnt = 0; cnt < nent; ++cnt) if (list[cnt] != NULL && list[cnt]->__error_code != EINPROGRESS) - return 0; + break; + + if (cnt == nent) + { + int oldstate; + + /* There is not yet a finished request. Signal the request that + we are working for it. */ + for (cnt = 0; cnt < nent; ++cnt) + if (list[cnt] != NULL && list[cnt]->__error_code == EINPROGRESS) + { + requestlist[cnt] = __aio_find_req ((aiocb_union *) list[cnt]); + + if (requestlist[cnt] != NULL) + { + waitlist[cnt].cond = &cond; + waitlist[cnt].next = requestlist[cnt]->waiting; + waitlist[cnt].counterp = NULL; + waitlist[cnt].sigevp = NULL; + requestlist[cnt]->waiting = &waitlist[cnt]; + } + } + + /* 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); + + if (timeout == NULL) + result = pthread_cond_wait (&cond, &__aio_requests_mutex); + else + result = pthread_cond_timedwait (&cond, &__aio_requests_mutex, + timeout); + + /* Now remove the entry in the waiting list for all requests + which didn't terminate */ + for (cnt = 0; cnt < nent; ++cnt) + if (list[cnt] != NULL && list[cnt]->__error_code == EINPROGRESS + && requestlist[cnt] != NULL) + { + struct waitlist **listp = &requestlist[cnt]->waiting; + + /* There is the chance that we cannot find our entry anymore. + This could happen if the request terminated and restarted + again. */ + while (*listp != NULL && *listp != &waitlist[cnt]) + listp = &(*listp)->next; + + if (*listp != NULL) + *listp = (*listp)->next; + } + + /* Now it's time to restore the cancelation state. */ + pthread_setcancelstate (oldstate, NULL); + + if (result != 0) + { + /* An error occurred. Possibly it's EINTR. We have to translate + the timeout error report of `pthread_cond_timedwait' to the + form expected from `aio_suspend'. */ + if (result == ETIMEDOUT) + __set_errno (EAGAIN); + + result = -1; + } + } - /* XXX We have to write code which waits. */ + /* Release the mutex. */ + pthread_mutex_unlock (&__aio_requests_mutex); - return -1; + return result; } weak_alias (aio_suspend, aio_suspend64) |