1 /**************************************************************************
3 * Copyright 2007-2011 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 **************************************************************************/
34 #include "trace_file.hpp"
35 #include "trace_writer.hpp"
36 #include "trace_format.hpp"
42 static void exceptionCallback(void)
44 OS::DebugMessage("apitrace: flushing trace due to an exception\n");
49 LocalWriter::LocalWriter() :
53 LocalWriter::~LocalWriter()
55 OS::ResetExceptionCallback();
59 LocalWriter::open(void) {
61 static unsigned dwCounter = 0;
63 const char *szExtension = "trace";
64 char szFileName[PATH_MAX];
65 const char *lpFileName;
67 lpFileName = getenv("TRACE_FILE");
69 strncpy(szFileName, lpFileName, PATH_MAX);
72 char szProcessName[PATH_MAX];
73 char szCurrentDir[PATH_MAX];
74 OS::GetProcessName(szProcessName, PATH_MAX);
75 OS::GetCurrentDir(szCurrentDir, PATH_MAX);
81 snprintf(szFileName, PATH_MAX, "%s%c%s.%u.%s", szCurrentDir, PATH_SEP, szProcessName, dwCounter, szExtension);
83 snprintf(szFileName, PATH_MAX, "%s%c%s.%s", szCurrentDir, PATH_SEP, szProcessName, szExtension);
85 file = fopen(szFileName, "rb");
95 OS::DebugMessage("apitrace: tracing to %s\n", szFileName);
97 Writer::open(szFileName);
99 OS::SetExceptionCallback(exceptionCallback);
102 // For debugging the exception handler
107 unsigned LocalWriter::beginEnter(const FunctionSig *sig) {
111 if (!m_file->isOpened()) {
115 return Writer::beginEnter(sig);
118 void LocalWriter::endEnter(void) {
124 void LocalWriter::beginLeave(unsigned call) {
127 Writer::beginLeave(call);
130 void LocalWriter::endLeave(void) {
136 void LocalWriter::flush(void) {
138 * Do nothing if the mutex is already acquired (e.g., if a segfault happen
139 * while writing the file) to prevent dead-lock.
144 if (m_file->isOpened()) {
152 LocalWriter localWriter;
155 } /* namespace Trace */