summaryrefslogtreecommitdiff
path: root/pr/src/threads/prdump.c
blob: 8c9e6f06470d93485c6573441f0e5d7a97ae4d53 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Netscape Portable Runtime (NSPR).
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998-2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "primpl.h"

#if defined(WIN95)
/*
** Some local variables report warnings on Win95 because the code paths 
** using them are conditioned on HAVE_CUSTOM_USER_THREADS.
** The pragma suppresses the warning.
** 
*/
#pragma warning(disable : 4101)
#endif

/* XXX use unbuffered nspr stdio */

PRFileDesc *_pr_dumpOut;

PRUint32 _PR_DumpPrintf(PRFileDesc *fd, const char *fmt, ...)
{
    char buf[100];
    PRUint32 nb;
    va_list ap;

    va_start(ap, fmt);
    nb = PR_vsnprintf(buf, sizeof(buf), fmt, ap);
    va_end(ap);
    PR_Write(fd, buf, nb);

    return nb;
}

void _PR_DumpThread(PRFileDesc *fd, PRThread *thread)
{

#ifndef _PR_GLOBAL_THREADS_ONLY
    _PR_DumpPrintf(fd, "%05d[%08p] pri=%2d flags=0x%02x",
                   thread->id, thread, thread->priority, thread->flags);
    switch (thread->state) {
      case _PR_RUNNABLE:
      case _PR_RUNNING:
        break;
      case _PR_LOCK_WAIT:
        _PR_DumpPrintf(fd, " lock=%p", thread->wait.lock);
        break;
      case _PR_COND_WAIT:
        _PR_DumpPrintf(fd, " condvar=%p sleep=%lldms",
                       thread->wait.cvar, thread->sleep);
        break;
      case _PR_SUSPENDED:
        _PR_DumpPrintf(fd, " suspended");
        break;
    }
    PR_Write(fd, "\n", 1);
#endif

    /* Now call dump routine */
    if (thread->dump) {
	thread->dump(fd, thread, thread->dumpArg);
    }
}

static void DumpThreadQueue(PRFileDesc *fd, PRCList *list)
{
#ifndef _PR_GLOBAL_THREADS_ONLY
    PRCList *q;

    q = list->next;
    while (q != list) {
        PRThread *t = _PR_THREAD_PTR(q);
        _PR_DumpThread(fd, t);
        q = q->next;
    }
#endif
}

void _PR_DumpThreads(PRFileDesc *fd)
{
    PRThread *t;
    PRIntn i;

    _PR_DumpPrintf(fd, "Current Thread:\n");
    t = _PR_MD_CURRENT_THREAD();
    _PR_DumpThread(fd, t);

    _PR_DumpPrintf(fd, "Runnable Threads:\n");
    for (i = 0; i < 32; i++) {
        DumpThreadQueue(fd, &_PR_RUNQ(t->cpu)[i]);
    }

    _PR_DumpPrintf(fd, "CondVar timed wait Threads:\n");
    DumpThreadQueue(fd, &_PR_SLEEPQ(t->cpu));

    _PR_DumpPrintf(fd, "CondVar wait Threads:\n");
    DumpThreadQueue(fd, &_PR_PAUSEQ(t->cpu));

    _PR_DumpPrintf(fd, "Suspended Threads:\n");
    DumpThreadQueue(fd, &_PR_SUSPENDQ(t->cpu));
}

PR_IMPLEMENT(void) PR_ShowStatus(void)
{
    PRIntn is;

    if ( _PR_MD_CURRENT_THREAD()
    && !_PR_IS_NATIVE_THREAD(_PR_MD_CURRENT_THREAD())) _PR_INTSOFF(is);
    _pr_dumpOut = _pr_stderr;
    _PR_DumpThreads(_pr_dumpOut);
    if ( _PR_MD_CURRENT_THREAD()
    && !_PR_IS_NATIVE_THREAD(_PR_MD_CURRENT_THREAD())) _PR_FAST_INTSON(is);
}

PR_IMPLEMENT(void)
PR_SetThreadDumpProc(PRThread* thread, PRThreadDumpProc dump, void *arg)
{
    thread->dump = dump;
    thread->dumpArg = arg;
}