1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 #include "precompiled_sal.hxx"
25
26 #include "sal/config.h"
27
28 #include <cstdarg>
29 #include <cstdio>
30 #include <cstring>
31
32 #include <stdio.h> // snprintf, vsnprintf
33
34 #include "osl/diagnose.h"
35 #include "osl/thread.hxx"
36 #include "rtl/string.h"
37 #include "sal/types.h"
38
39 #include "printtrace.h"
40
printTrace(unsigned long pid,char const * format,std::va_list arguments)41 void printTrace(unsigned long pid, char const * format, std::va_list arguments)
42 {
43 char buf[1024];
44 int n1 = snprintf(
45 buf, sizeof buf, "Trace %lu/%" SAL_PRIuUINT32 ": \"", pid,
46 osl::Thread::getCurrentIdentifier());
47 OSL_ASSERT(
48 n1 >= 0 &&
49 (static_cast< unsigned int >(n1) <
50 sizeof buf - RTL_CONSTASCII_LENGTH("\"...\n")));
51 int n2 = sizeof buf - n1 - RTL_CONSTASCII_LENGTH("\"...\n");
52 int n3 = vsnprintf(buf + n1, n2, format, arguments);
53 if (n3 < 0) {
54 std::strcpy(buf + n1, "\"???\n");
55 } else if (n3 < n2) {
56 std::strcpy(buf + n1 + n3, "\"\n");
57 } else {
58 std::strcpy(buf + n1 + n2 - 1, "\"...\n");
59 }
60 std::fputs(buf, stderr);
61 }
62