src/server/systhr.c

changeset 14
b8bf95b39952
parent 13
1fdbf4170ef4
child 15
cff9c4101dd7
--- a/src/server/systhr.c	Sun Jan 08 15:46:47 2012 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,182 +0,0 @@
-/*
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
- *
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
- *
- * THE BSD LICENSE
- *
- * Redistribution and use in source and binary forms, with or without 
- * modification, are permitted provided that the following conditions are met:
- *
- * Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer. 
- * 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. 
- *
- * Neither the name of the  nor the names of its contributors may be
- * used to endorse or promote products derived from this software without 
- * specific prior written permission. 
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 
- * 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.
- */
-
-/*
- * systhr.c: Abstracted threading mechanisms
- * 
- * Rob McCool
- */
-
-
-#include "systhr.h"
-#include "ereport.h"
-
-#include "prinit.h"
-#include "prthread.h"
-#include "private/pprthred.h"
-
-#include "systems.h"
-
-#ifdef XP_UNIX
-#include <poll.h>
-#endif
-
-#ifdef THREAD_WIN32
-#include <process.h>
-
-typedef struct {
-    HANDLE hand;
-    DWORD id;
-} sys_thread_s;
-
-#endif
-
-#define DEFAULT_STACKSIZE (64*1024)
-
-static unsigned long _systhr_stacksize = DEFAULT_STACKSIZE;
-
-NSAPI_PUBLIC 
-void systhread_set_default_stacksize(unsigned long size)
-{
-	_systhr_stacksize = size;
-}
-
-NSAPI_PUBLIC 
-SYS_THREAD systhread_start(int prio, int stksz, thrstartfunc fn, void *arg)
-{
-    PRThread *ret = PR_CreateThread(PR_USER_THREAD, (void (*)(void *))fn,
-				    (void *)arg, (PRThreadPriority)prio, 
-				    PR_GLOBAL_THREAD, PR_UNJOINABLE_THREAD,
-                                    stksz ? stksz : _systhr_stacksize);
-    return (void *) ret;
-}
-
-
-NSAPI_PUBLIC SYS_THREAD systhread_current(void)
-{
-    return PR_GetCurrentThread();
-}
-
-NSAPI_PUBLIC void systhread_yield(void)
-{
-    PR_Sleep(PR_INTERVAL_NO_WAIT);
-}
-
-
-NSAPI_PUBLIC void systhread_timerset(int usec)
-{
-   /* This is an interesting problem.  If you ever do turn on interrupts
-    * on the server, you're in for lots of fun with NSPR Threads
-   PR_StartEvents(usec); */
-}
-
-
-NSAPI_PUBLIC 
-SYS_THREAD systhread_attach(void)
-{
-    PRThread *ret;
-    ret = PR_AttachThread(PR_USER_THREAD, PR_PRIORITY_NORMAL, NULL);
-
-    return (void *) ret;
-}
-
-NSAPI_PUBLIC
-void systhread_detach(SYS_THREAD thr)
-{
-    /* XXXMB - this is not correct! */
-    PR_DetachThread();
-}
-
-NSAPI_PUBLIC void systhread_terminate(SYS_THREAD thr)
-{
-    PR_Interrupt((PRThread *)thr);
-}
-
-NSAPI_PUBLIC void systhread_sleep(int milliseconds)
-{
-#ifdef XP_WIN32
-    PR_Sleep(PR_MillisecondsToInterval(milliseconds));
-#else
-    /* poll() is more efficient than PR_Sleep() */
-    if (milliseconds > 0)
-        poll(NULL, NULL, milliseconds);
-#endif
-}
-
-NSAPI_PUBLIC void systhread_init(char *name)
-{
-    if (!PR_Initialized()) {
-        PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 256);
-    }
-    // XXX: ruslan - this bug can potentially exist on all plafroms due to
-    //	possible priority inversion on NSPR spin locks. This code will
-    //	need to be remove as we get new NSPR drop
-    // <WORKAROUND>
-    /* VB: This is to fix bug# 364813 coupled with NSPR not wanting to patch
-           their problems. The fix is to prevent NSPR itself from
-           using atomic stacks.
-    */
-    // ruslan: this problem exists on DEC also. We will roll it back when
-    //	we have the right fix from NSPR group. It has smth. to do with
-    //	atomic operations on DEC, it's an assembly code which is different
-    //	for every platform. NSPR_FD_CACHE_SIZE_HIGH env var will cause the
-    //	same effect as this fix. Debug version of NSPR always works as it doesn't
-    //  have FD stack.
-
-    int maxPRFdCache = 8192;
-    PR_SetFDCacheSize(0, maxPRFdCache);
-    // </WORKAROUND>
-}
-
-
-NSAPI_PUBLIC int systhread_newkey()
-{
-    uintn newkey;
-
-    PR_NewThreadPrivateIndex(&newkey, NULL);
-    return (newkey);
-}
-
-NSAPI_PUBLIC void *systhread_getdata(int key)
-{
-    return PR_GetThreadPrivate(key);
-}
-
-NSAPI_PUBLIC void systhread_setdata(int key, void *data)
-{
-    PR_SetThreadPrivate(key, data);
-}
-
-NSAPI_PUBLIC void systhread_dummy(void)
-{
-}

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