--- /dev/null
- #include <set>
+#include "trace_file.hpp"
+
+#include <assert.h>
+#include <string.h>
+
+#include <zlib.h>
+#include <snappy.h>
+
+#include "os.hpp"
+
+#include <iostream>
- static void cleanupHandler(int sig);
-
- class FileCleanup
- {
- public:
- FileCleanup()
- {
- OS::CatchInterrupts(cleanupHandler);
- }
-
- ~FileCleanup()
- {
- flush();
- m_files.clear();
- }
-
- void addFile(Trace::File *file)
- {
- m_files.insert(file);
- }
- void removeFile(Trace::File *file)
- {
- m_files.erase(file);
- }
-
- void flush()
- {
- std::set<Trace::File*>::const_iterator itr;
- for (itr = m_files.begin(); itr != m_files.end(); ++itr) {
- (*itr)->flush(File::FlushDeep);
- }
- }
-
- private:
- std::set<Trace::File*> m_files;
- };
- static FileCleanup s_cleaner;
-
- static void cleanupHandler(int sig)
- {
- s_cleaner.flush();
- }
-
+
+using namespace Trace;
+
+#define SNAPPY_BYTE1 'a'
+#define SNAPPY_BYTE2 't'
+
- if (m_isOpened) {
- s_cleaner.addFile(this);
- }
+File::File(const std::string &filename,
+ File::Mode mode)
+ : m_filename(filename),
+ m_mode(mode),
+ m_isOpened(false)
+{
+ if (!m_filename.empty()) {
+ open(m_filename, m_mode);
+ }
+}
+
+
+File::~File()
+{
+ close();
+}
+
+bool File::isOpened() const
+{
+ return m_isOpened;
+}
+
+File::Mode File::mode() const
+{
+ return m_mode;
+}
+
+std::string File::filename() const
+{
+ return m_filename;
+}
+
+bool File::open(const std::string &filename, File::Mode mode)
+{
+ if (m_isOpened) {
+ close();
+ }
+ m_isOpened = rawOpen(filename, mode);
+ m_mode = mode;
+
- s_cleaner.removeFile(this);
+ return m_isOpened;
+}
+
+bool File::write(const void *buffer, int length)
+{
+ if (!m_isOpened || m_mode != File::Write) {
+ return false;
+ }
+ return rawWrite(buffer, length);
+}
+
+bool File::read(void *buffer, int length)
+{
+ if (!m_isOpened || m_mode != File::Read) {
+ return false;
+ }
+ return rawRead(buffer, length);
+}
+
+void File::close()
+{
+ if (m_isOpened) {
+ rawClose();
+ m_isOpened = false;
+ }
+}
+
+void File::flush(FlushType type)
+{
+ rawFlush(type);
+}
+
+int File::getc()
+{
+ if (!m_isOpened || m_mode != File::Read) {
+ return 0;
+ }
+ return rawGetc();
+}
+
+bool File::isZLibCompressed(const std::string &filename)
+{
+ std::fstream stream(filename.c_str(),
+ std::fstream::binary | std::fstream::in);
+ if (!stream.is_open())
+ return false;
+
+ unsigned char byte1, byte2;
+ stream >> byte1;
+ stream >> byte2;
+ stream.close();
+
+ return (byte1 == 0x1f && byte2 == 0x8b);
+}
+
+
+bool File::isSnappyCompressed(const std::string &filename)
+{
+ std::fstream stream(filename.c_str(),
+ std::fstream::binary | std::fstream::in);
+ if (!stream.is_open())
+ return false;
+
+ unsigned char byte1, byte2;
+ stream >> byte1;
+ stream >> byte2;
+ stream.close();
+
+ return (byte1 == SNAPPY_BYTE1 && byte2 == SNAPPY_BYTE2);
+}
+
+
+ZLibFile::ZLibFile(const std::string &filename,
+ File::Mode mode)
+ : File(filename, mode),
+ m_gzFile(NULL)
+{
+}
+
+ZLibFile::~ZLibFile()
+{
+}
+
+bool ZLibFile::rawOpen(const std::string &filename, File::Mode mode)
+{
+ m_gzFile = gzopen(filename.c_str(),
+ (mode == File::Write) ? "wb" : "rb");
+ return m_gzFile != NULL;
+}
+
+bool ZLibFile::rawWrite(const void *buffer, int length)
+{
+ return gzwrite(m_gzFile, buffer, length) != -1;
+}
+
+bool ZLibFile::rawRead(void *buffer, int length)
+{
+ return gzread(m_gzFile, buffer, length) != -1;
+}
+
+int ZLibFile::rawGetc()
+{
+ return gzgetc(m_gzFile);
+}
+
+void ZLibFile::rawClose()
+{
+ if (m_gzFile) {
+ gzclose(m_gzFile);
+ m_gzFile = NULL;
+ }
+}
+
+void ZLibFile::rawFlush(FlushType type)
+{
+ gzflush(m_gzFile, Z_SYNC_FLUSH);
+}
+
+SnappyFile::SnappyFile(const std::string &filename,
+ File::Mode mode)
+ : File(),
+ m_cache(0),
+ m_cachePtr(0),
+ m_cacheSize(0)
+{
+ m_compressedCache = new char[SNAPPY_CHUNK_SIZE];
+}
+
+SnappyFile::~SnappyFile()
+{
+ delete [] m_compressedCache;
+}
+
+bool SnappyFile::rawOpen(const std::string &filename, File::Mode mode)
+{
+ std::ios_base::openmode fmode = std::fstream::binary;
+ if (mode == File::Write) {
+ fmode |= (std::fstream::out | std::fstream::trunc);
+ createCache(SNAPPY_CHUNK_SIZE);
+ } else if (mode == File::Read) {
+ fmode |= std::fstream::in;
+ }
+
+ m_stream.open(filename.c_str(), fmode);
+
+ //read in the initial buffer if we're reading
+ if (m_stream.is_open() && mode == File::Read) {
+ // read the snappy file identifier
+ unsigned char byte1, byte2;
+ m_stream >> byte1;
+ m_stream >> byte2;
+ assert(byte1 == SNAPPY_BYTE1 && byte2 == SNAPPY_BYTE2);
+
+ flushCache();
+ } else if (m_stream.is_open() && mode == File::Write) {
+ // write the snappy file identifier
+ m_stream << SNAPPY_BYTE1;
+ m_stream << SNAPPY_BYTE2;
+ }
+ return m_stream.is_open();
+}
+
+bool SnappyFile::rawWrite(const void *buffer, int length)
+{
+ if (freeCacheSize() > length) {
+ memcpy(m_cachePtr, buffer, length);
+ m_cachePtr += length;
+ } else if (freeCacheSize() == length) {
+ memcpy(m_cachePtr, buffer, length);
+ m_cachePtr += length;
+ flushCache();
+ } else {
+ int sizeToWrite = length;
+
+ while (sizeToWrite >= freeCacheSize()) {
+ int endSize = freeCacheSize();
+ int offset = length - sizeToWrite;
+ memcpy(m_cachePtr, (char*)buffer + offset, endSize);
+ sizeToWrite -= endSize;
+ m_cachePtr += endSize;
+ flushCache();
+ }
+ if (sizeToWrite) {
+ int offset = length - sizeToWrite;
+ memcpy(m_cachePtr, (char*)buffer + offset, sizeToWrite);
+ m_cachePtr += sizeToWrite;
+ }
+ }
+
+ return true;
+}
+
+bool SnappyFile::rawRead(void *buffer, int length)
+{
+ if (m_stream.eof()) {
+ return false;
+ }
+ if (freeCacheSize() > length) {
+ memcpy(buffer, m_cachePtr, length);
+ m_cachePtr += length;
+ } else if (freeCacheSize() == length) {
+ memcpy(buffer, m_cachePtr, length);
+ m_cachePtr += length;
+ flushCache();
+ } else {
+ int sizeToRead = length;
+ int offset = 0;
+ while (sizeToRead) {
+ int chunkSize = std::min(freeCacheSize(), sizeToRead);
+ offset = length - sizeToRead;
+ memcpy((char*)buffer + offset, m_cachePtr, chunkSize);
+ m_cachePtr += chunkSize;
+ sizeToRead -= chunkSize;
+ if (sizeToRead > 0)
+ flushCache();
+ if (!m_cacheSize)
+ break;
+ }
+ }
+
+ return true;
+}
+
+int SnappyFile::rawGetc()
+{
+ int c = 0;
+ if (!rawRead(&c, 1))
+ return -1;
+ return c;
+}
+
+void SnappyFile::rawClose()
+{
+ flushCache();
+ m_stream.close();
+ delete [] m_cache;
+ m_cache = NULL;
+ m_cachePtr = NULL;
+}
+
+void SnappyFile::rawFlush(FlushType type)
+{
+ if (type == FlushDeep) {
+ flushCache();
+ }
+ m_stream.flush();
+}
+
+void SnappyFile::flushCache()
+{
+ if (m_mode == File::Write) {
+ size_t compressedLength;
+
+ ::snappy::RawCompress(m_cache, SNAPPY_CHUNK_SIZE - freeCacheSize(),
+ m_compressedCache, &compressedLength);
+
+ m_stream << compressedLength;
+ m_stream.write(m_compressedCache, compressedLength);
+ m_cachePtr = m_cache;
+ } else if (m_mode == File::Read) {
+ if (m_stream.eof())
+ return;
+ //assert(m_cachePtr == m_cache + m_cacheSize);
+ size_t compressedLength;
+ m_stream >> compressedLength;
+ m_stream.read((char*)m_compressedCache, compressedLength);
+ ::snappy::GetUncompressedLength(m_compressedCache, compressedLength,
+ &m_cacheSize);
+ if (m_cache)
+ delete [] m_cache;
+ createCache(m_cacheSize);
+ ::snappy::RawUncompress(m_compressedCache, compressedLength,
+ m_cache);
+ }
+}
+
+void SnappyFile::createCache(size_t size)
+{
+ m_cache = new char[size];
+ m_cachePtr = m_cache;
+ m_cacheSize = size;
+}
--- /dev/null
-#include <zlib.h>
-
+ /**************************************************************************
+ *
+ * Copyright 2007-2011 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+ #include <assert.h>
+ #include <stdarg.h>
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <string.h>
+
- if (!g_gzFile) {
+ #include "os.hpp"
++#include "trace_file.hpp"
+ #include "trace_writer.hpp"
+ #include "trace_format.hpp"
+
+
+ namespace Trace {
+
+
+ static void exceptionCallback(void)
+ {
+ OS::DebugMessage("apitrace: flushing trace due to an exception\n");
+ localWriter.flush();
+ }
+
+
+ LocalWriter::LocalWriter() :
+ acquired(0)
+ {}
+
+ LocalWriter::~LocalWriter()
+ {
+ OS::ResetExceptionCallback();
+ }
+
+ void
+ LocalWriter::open(void) {
+
+ static unsigned dwCounter = 0;
+
+ const char *szExtension = "trace";
+ char szFileName[PATH_MAX];
+ const char *lpFileName;
+
+ lpFileName = getenv("TRACE_FILE");
+ if (lpFileName) {
+ strncpy(szFileName, lpFileName, PATH_MAX);
+ }
+ else {
+ char szProcessName[PATH_MAX];
+ char szCurrentDir[PATH_MAX];
+ OS::GetProcessName(szProcessName, PATH_MAX);
+ OS::GetCurrentDir(szCurrentDir, PATH_MAX);
+
+ for (;;) {
+ FILE *file;
+
+ if (dwCounter)
+ snprintf(szFileName, PATH_MAX, "%s%c%s.%u.%s", szCurrentDir, PATH_SEP, szProcessName, dwCounter, szExtension);
+ else
+ snprintf(szFileName, PATH_MAX, "%s%c%s.%s", szCurrentDir, PATH_SEP, szProcessName, szExtension);
+
+ file = fopen(szFileName, "rb");
+ if (file == NULL)
+ break;
+
+ fclose(file);
+
+ ++dwCounter;
+ }
+ }
+
+ OS::DebugMessage("apitrace: tracing to %s\n", szFileName);
+
+ Writer::open(szFileName);
+
+ OS::SetExceptionCallback(exceptionCallback);
+
+ #if 0
+ // For debugging the exception handler
+ *((int *)0) = 0;
+ #endif
+ }
+
+ unsigned LocalWriter::beginEnter(const FunctionSig *sig) {
+ OS::AcquireMutex();
+ ++acquired;
+
- if (g_gzFile) {
- gzflush(g_gzFile, Z_SYNC_FLUSH);
- }
++ if (!m_file->isOpened()) {
+ open();
+ }
+
+ return Writer::beginEnter(sig);
+ }
+
+ void LocalWriter::endEnter(void) {
+ Writer::endEnter();
+ --acquired;
+ OS::ReleaseMutex();
+ }
+
+ void LocalWriter::beginLeave(unsigned call) {
+ OS::AcquireMutex();
+ ++acquired;
+ Writer::beginLeave(call);
+ }
+
+ void LocalWriter::endLeave(void) {
+ Writer::endLeave();
+ --acquired;
+ OS::ReleaseMutex();
+ }
+
+ void LocalWriter::flush(void) {
+ /*
+ * Do nothing if the mutex is already acquired (e.g., if a segfault happen
+ * while writing the file) to prevent dead-lock.
+ */
+
+ if (!acquired) {
+ OS::AcquireMutex();
++ if (m_file->isOpened()) {
++ m_file->flush();
++ }
+ OS::ReleaseMutex();
+ }
+ }
+
+
+ LocalWriter localWriter;
+
+
+ } /* namespace Trace */
+
projects / apitrace / commitdiff