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 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