1 : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2 : *
3 : * ***** BEGIN LICENSE BLOCK *****
4 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 : *
6 : * The contents of this file are subject to the Mozilla Public License Version
7 : * 1.1 (the "License"); you may not use this file except in compliance with
8 : * the License. You may obtain a copy of the License at
9 : * http://www.mozilla.org/MPL/
10 : *
11 : * Software distributed under the License is distributed on an "AS IS" basis,
12 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 : * for the specific language governing rights and limitations under the
14 : * License.
15 : *
16 : * The Original Code is Mozilla Communicator client code, released
17 : * March 31, 1998.
18 : *
19 : * The Initial Developer of the Original Code is
20 : * Netscape Communications Corporation.
21 : * Portions created by the Initial Developer are Copyright (C) 1998
22 : * the Initial Developer. All Rights Reserved.
23 : *
24 : * Contributor(s):
25 : * John Bandhauer <jband@netscape.com> (original author)
26 : *
27 : * Alternatively, the contents of this file may be used under the terms of
28 : * either of the GNU General Public License Version 2 or later (the "GPL"),
29 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
30 : * in which case the provisions of the GPL or the LGPL are applicable instead
31 : * of those above. If you wish to allow use of your version of this file only
32 : * under the terms of either the GPL or the LGPL, and not to allow others to
33 : * use your version of this file under the terms of the MPL, indicate your
34 : * decision by deleting the provisions above and replace them with the notice
35 : * and other provisions required by the GPL or the LGPL. If you do not delete
36 : * the provisions above, a recipient may use your version of this file under
37 : * the terms of any one of the MPL, the GPL or the LGPL.
38 : *
39 : * ***** END LICENSE BLOCK ***** */
40 :
41 : /* Debug Logging support. */
42 :
43 : #include "xpcprivate.h"
44 :
45 : // this all only works for DEBUG...
46 : #ifdef DEBUG
47 :
48 : #define SPACE_COUNT 200
49 : #define LINE_LEN 200
50 : #define INDENT_FACTOR 2
51 :
52 : #define CAN_RUN (g_InitState == 1 || (g_InitState == 0 && Init()))
53 :
54 : static char* g_Spaces;
55 : static int g_InitState = 0;
56 : static int g_Indent = 0;
57 : static PRLogModuleInfo* g_LogMod = nsnull;
58 :
59 0 : static bool Init()
60 : {
61 0 : g_LogMod = PR_NewLogModule("xpclog");
62 0 : g_Spaces = new char[SPACE_COUNT+1];
63 0 : if (!g_LogMod || !g_Spaces || !PR_LOG_TEST(g_LogMod,1)) {
64 0 : g_InitState = 1;
65 0 : XPC_Log_Finish();
66 0 : return false;
67 : }
68 0 : memset(g_Spaces, ' ', SPACE_COUNT);
69 0 : g_Spaces[SPACE_COUNT] = 0;
70 0 : g_InitState = 1;
71 0 : return true;
72 : }
73 :
74 : void
75 1403 : XPC_Log_Finish()
76 : {
77 1403 : if (g_InitState == 1) {
78 0 : delete [] g_Spaces;
79 : // we'd like to properly cleanup the LogModule, but nspr owns that
80 0 : g_LogMod = nsnull;
81 : }
82 1403 : g_InitState = -1;
83 1403 : }
84 :
85 : void
86 0 : XPC_Log_print(const char *fmt, ...)
87 : {
88 : va_list ap;
89 : char line[LINE_LEN];
90 :
91 0 : va_start(ap, fmt);
92 0 : PR_vsnprintf(line, sizeof(line)-1, fmt, ap);
93 0 : va_end(ap);
94 0 : if (g_Indent)
95 0 : PR_LogPrint("%s%s",g_Spaces+SPACE_COUNT-(INDENT_FACTOR*g_Indent),line);
96 : else
97 0 : PR_LogPrint("%s",line);
98 0 : }
99 :
100 : bool
101 0 : XPC_Log_Check(int i)
102 : {
103 0 : return CAN_RUN && PR_LOG_TEST(g_LogMod,1);
104 : }
105 :
106 : void
107 0 : XPC_Log_Indent()
108 : {
109 0 : if (INDENT_FACTOR*(++g_Indent) > SPACE_COUNT)
110 0 : g_Indent-- ;
111 0 : }
112 :
113 : void
114 0 : XPC_Log_Outdent()
115 : {
116 0 : if (--g_Indent < 0)
117 0 : g_Indent++;
118 0 : }
119 :
120 : void
121 0 : XPC_Log_Clear_Indent()
122 : {
123 0 : g_Indent = 0;
124 0 : }
125 :
126 : #endif
127 :
128 : #ifdef DEBUG_slimwrappers
129 : void
130 : LogSlimWrapperWillMorph(JSContext *cx, JSObject *obj, const char *propname,
131 : const char *functionName)
132 : {
133 : if (obj && IS_SLIM_WRAPPER(obj)) {
134 : XPCNativeScriptableInfo *si =
135 : GetSlimWrapperProto(obj)->GetScriptableInfo();
136 : printf("***** morphing %s from %s", si->GetJSClass()->name,
137 : functionName);
138 : if (propname)
139 : printf(" for %s", propname);
140 : printf(" (%p, %p)\n", obj,
141 : static_cast<nsISupports*>(xpc_GetJSPrivate(obj)));
142 : xpc_DumpJSStack(cx, false, false, false);
143 : }
144 : }
145 :
146 : void
147 : LogSlimWrapperNotCreated(JSContext *cx, nsISupports *obj, const char *reason)
148 : {
149 : char* className = nsnull;
150 : nsCOMPtr<nsIClassInfo> ci = do_QueryInterface(obj);
151 : if (ci)
152 : ci->GetClassDescription(&className);
153 : printf("***** refusing to create slim wrapper%s%s, reason: %s (%p)\n",
154 : className ? " for " : "", className ? className : "", reason, obj);
155 : if (className)
156 : PR_Free(className);
157 : JSAutoRequest autoRequest(cx);
158 : xpc_DumpJSStack(cx, false, false, false);
159 : }
160 : #endif
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