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authorcvs2svn <cvs2svn@FreeBSD.org>1998-07-24 04:57:32 +0000
committercvs2svn <cvs2svn@FreeBSD.org>1998-07-24 04:57:32 +0000
commit95b66175a329d81a892710c81f126f1071ac17a0 (patch)
tree421828aefe3abbbd256758667fa2e8fcd1dc8eaa /lib
parent21a9168142cf87c9b9fa0cef9a0f5657e9eade71 (diff)
Diffstat (limited to 'lib')
-rw-r--r--lib/libc/gen/_spinlock_stub.c64
-rw-r--r--lib/libc/include/libc_private.h66
-rw-r--r--lib/libc/include/spinlock.h71
-rw-r--r--lib/libc/stdio/_flock_stub.c81
-rw-r--r--lib/libc_r/uthread/uthread_recvmsg.c72
-rw-r--r--lib/libc_r/uthread/uthread_sendmsg.c71
-rw-r--r--lib/libc_r/uthread/uthread_spinlock.c108
7 files changed, 0 insertions, 533 deletions
diff --git a/lib/libc/gen/_spinlock_stub.c b/lib/libc/gen/_spinlock_stub.c
deleted file mode 100644
index a189eef7f2e1..000000000000
--- a/lib/libc/gen/_spinlock_stub.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by John Birrell.
- * 4. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: _spinlock_stub.c,v 1.2 1998/04/29 09:02:16 jb Exp $
- *
- */
-
-#include <stdio.h>
-
-/* Don't build these stubs into libc_r: */
-#ifndef _THREAD_SAFE
-#include "spinlock.h"
-
-/*
- * Declare weak references in case the application is not linked
- * with libpthread.
- */
-#pragma weak _spinlock=_spinlock_stub
-#pragma weak _spinlock_debug=_spinlock_debug_stub
-
-/*
- * This function is a stub for the spinlock function in libpthread.
- */
-void
-_spinlock_stub(spinlock_t *lck)
-{
-}
-
-/*
- * This function is a stub for the debug spinlock function in libpthread.
- */
-void
-_spinlock_debug_stub(spinlock_t *lck, char *fname, int lineno)
-{
-}
-#endif
diff --git a/lib/libc/include/libc_private.h b/lib/libc/include/libc_private.h
deleted file mode 100644
index b8248824a9b6..000000000000
--- a/lib/libc/include/libc_private.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by John Birrell.
- * 4. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: libc_private.h,v 1.1 1998/04/11 06:57:33 jb Exp $
- *
- * Private definitions for libc, libc_r and libpthread.
- *
- */
-
-#ifndef _LIBC_PRIVATE_H_
-#define _LIBC_PRIVATE_H_
-
-/*
- * This global flag is non-zero when a process has created one
- * or more threads. It is used to avoid calling locking functions
- * when they are not required.
- */
-extern int __isthreaded;
-
-/*
- * File lock contention is difficult to diagnose without knowing
- * where locks were set. Allow a debug library to be built which
- * records the source file and line number of each lock call.
- */
-#ifdef _FLOCK_DEBUG
-#define _FLOCKFILE(x) _flockfile_debug(x, __FILE__, __LINE__)
-#else
-#define _FLOCKFILE(x) flockfile(x)
-#endif
-
-/*
- * Macros for locking and unlocking FILEs. These test if the
- * process is threaded to avoid locking when not required.
- */
-#define FLOCKFILE(fp) if (__isthreaded) _FLOCKFILE(fp)
-#define FUNLOCKFILE(fp) if (__isthreaded) funlockfile(fp)
-
-#endif /* _LIBC_PRIVATE_H_ */
diff --git a/lib/libc/include/spinlock.h b/lib/libc/include/spinlock.h
deleted file mode 100644
index e3136846afab..000000000000
--- a/lib/libc/include/spinlock.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by John Birrell.
- * 4. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: spinlock.h,v 1.2 1998/05/05 21:46:30 jb Exp $
- *
- * Lock definitions used in both libc and libpthread.
- *
- */
-
-#ifndef _SPINLOCK_H_
-#define _SPINLOCK_H_
-#include <sys/cdefs.h>
-#include <sys/types.h>
-
-/*
- * Lock structure with room for debugging information.
- */
-typedef struct {
- volatile long access_lock;
- volatile long lock_owner;
- volatile char *fname;
- volatile int lineno;
-} spinlock_t;
-
-#define _SPINLOCK_INITIALIZER { 0, 0, 0, 0 }
-
-#define _SPINUNLOCK(_lck) (_lck)->access_lock = 0
-#ifdef _LOCK_DEBUG
-#define _SPINLOCK(_lck) _spinlock_debug(_lck, __FILE__, __LINE__)
-#else
-#define _SPINLOCK(_lck) _spinlock(_lck)
-#endif
-
-/*
- * Thread function prototype definitions:
- */
-__BEGIN_DECLS
-long _atomic_lock __P((volatile long *));
-void _spinlock __P((spinlock_t *));
-void _spinlock_debug __P((spinlock_t *, char *, int));
-__END_DECLS
-
-#endif /* _SPINLOCK_H_ */
diff --git a/lib/libc/stdio/_flock_stub.c b/lib/libc/stdio/_flock_stub.c
deleted file mode 100644
index 96f5c9452e3f..000000000000
--- a/lib/libc/stdio/_flock_stub.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by John Birrell.
- * 4. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: _flock_stub.c,v 1.1 1998/04/11 07:40:41 jb Exp $
- *
- */
-
-#include <stdio.h>
-
-/* Don't build this in libc_r, just libc: */
-#ifndef _THREAD_SAFE
-/*
- * Declare weak references in case the application is not linked
- * with libpthread.
- */
-#pragma weak flockfile=_flockfile_stub
-#pragma weak _flockfile_debug=_flockfile_debug_stub
-#pragma weak ftrylockfile=_ftrylockfile_stub
-#pragma weak funlockfile=_funlockfile_stub
-
-/*
- * This function is a stub for the _flockfile function in libpthread.
- */
-void
-_flockfile_stub(FILE *fp)
-{
-}
-
-/*
- * This function is a stub for the _flockfile_debug function in libpthread.
- */
-void
-_flockfile_debug_stub(FILE *fp, char *fname, int lineno)
-{
-}
-
-/*
- * This function is a stub for the _ftrylockfile function in libpthread.
- */
-int
-_ftrylockfile_stub(FILE *fp)
-{
- return(0);
-}
-
-/*
- * This function is a stub for the _funlockfile function in libpthread.
- */
-void
-_funlockfile_stub(FILE *fp)
-{
-}
-#endif
diff --git a/lib/libc_r/uthread/uthread_recvmsg.c b/lib/libc_r/uthread/uthread_recvmsg.c
deleted file mode 100644
index 44a4a6552cc7..000000000000
--- a/lib/libc_r/uthread/uthread_recvmsg.c
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by John Birrell.
- * 4. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <fcntl.h>
-#ifdef _THREAD_SAFE
-#include <pthread.h>
-#include "pthread_private.h"
-
-ssize_t
-recvmsg(int fd, struct msghdr *msg, int flags)
-{
- int ret;
-
- if ((ret = _FD_LOCK(fd, FD_READ, NULL)) == 0) {
- while ((ret = _thread_sys_recvmsg(fd, msg, flags)) < 0) {
- if (!(_thread_fd_table[fd]->flags & O_NONBLOCK) && ((errno == EWOULDBLOCK) || (errno == EAGAIN))) {
- _thread_run->data.fd.fd = fd;
-
- /* Set the timeout: */
- _thread_kern_set_timeout(NULL);
- _thread_run->interrupted = 0;
- _thread_kern_sched_state(PS_FDR_WAIT, __FILE__, __LINE__);
-
- /* Check if the wait was interrupted: */
- if (_thread_run->interrupted) {
- /* Return an error status: */
- errno = EINTR;
- ret = -1;
- break;
- }
- } else {
- ret = -1;
- break;
- }
- }
- _FD_UNLOCK(fd, FD_READ);
- }
- return (ret);
-}
-#endif
diff --git a/lib/libc_r/uthread/uthread_sendmsg.c b/lib/libc_r/uthread/uthread_sendmsg.c
deleted file mode 100644
index 9d97c121dcff..000000000000
--- a/lib/libc_r/uthread/uthread_sendmsg.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (c) 1998 John Birrell <jb@cimlogic.com.au>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by John Birrell.
- * 4. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <fcntl.h>
-#ifdef _THREAD_SAFE
-#include <pthread.h>
-#include "pthread_private.h"
-
-ssize_t
-sendmsg(int fd, const struct msghdr *msg, int flags)
-{
- int ret;
-
- if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) {
- while ((ret = _thread_sys_sendmsg(fd, msg, flags)) < 0) {
- if (!(_thread_fd_table[fd]->flags & O_NONBLOCK) && ((errno == EWOULDBLOCK) || (errno == EAGAIN))) {
- _thread_run->data.fd.fd = fd;
-
- /* Set the timeout: */
- _thread_kern_set_timeout(NULL);
- _thread_run->interrupted = 0;
- _thread_kern_sched_state(PS_FDW_WAIT, __FILE__, __LINE__);
-
- /* Check if the operation was interrupted: */
- if (_thread_run->interrupted) {
- errno = EINTR;
- ret = -1;
- break;
- }
- } else {
- ret = -1;
- break;
- }
- }
- _FD_UNLOCK(fd, FD_WRITE);
- }
- return (ret);
-}
-#endif
diff --git a/lib/libc_r/uthread/uthread_spinlock.c b/lib/libc_r/uthread/uthread_spinlock.c
deleted file mode 100644
index 9da115e5eedb..000000000000
--- a/lib/libc_r/uthread/uthread_spinlock.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by John Birrell.
- * 4. Neither the name of the author nor the names of any co-contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $Id: uthread_spinlock.c,v 1.3 1998/06/06 07:27:06 jb Exp $
- *
- */
-
-#include <stdio.h>
-#include <sched.h>
-#include <unistd.h>
-#include <pthread.h>
-#include <string.h>
-#include "pthread_private.h"
-
-extern char *__progname;
-
-/*
- * Lock a location for the running thread. Yield to allow other
- * threads to run if this thread is blocked because the lock is
- * not available. Note that this function does not sleep. It
- * assumes that the lock will be available very soon.
- */
-void
-_spinlock(spinlock_t *lck)
-{
- /*
- * Try to grab the lock and loop if another thread grabs
- * it before we do.
- */
- while(_atomic_lock(&lck->access_lock)) {
- /* Give up the time slice: */
- sched_yield();
-
- /* Check if already locked by the running thread: */
- if (lck->lock_owner == (long) _thread_run)
- return;
- }
-
- /* The running thread now owns the lock: */
- lck->lock_owner = (long) _thread_run;
-}
-
-/*
- * Lock a location for the running thread. Yield to allow other
- * threads to run if this thread is blocked because the lock is
- * not available. Note that this function does not sleep. It
- * assumes that the lock will be available very soon.
- *
- * This function checks if the running thread has already locked the
- * location, warns if this occurs and creates a thread dump before
- * returning.
- */
-void
-_spinlock_debug(spinlock_t *lck, char *fname, int lineno)
-{
- /*
- * Try to grab the lock and loop if another thread grabs
- * it before we do.
- */
- while(_atomic_lock(&lck->access_lock)) {
- /* Give up the time slice: */
- sched_yield();
-
- /* Check if already locked by the running thread: */
- if (lck->lock_owner == (long) _thread_run) {
- char str[256];
- snprintf(str, sizeof(str), "%s - Warning: Thread %p attempted to lock %p from %s (%d) which it had already locked in %s (%d)\n", __progname, _thread_run, lck, fname, lineno, lck->fname, lck->lineno);
- _thread_sys_write(2,str,strlen(str));
-
- /* Create a thread dump to help debug this problem: */
- _thread_dump_info();
- return;
- }
- }
-
- /* The running thread now owns the lock: */
- lck->lock_owner = (long) _thread_run;
- lck->fname = fname;
- lck->lineno = lineno;
-}