--- /dev/null
+/**************************************************************************
+ *
+ * Copyright 2007-2009 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>
+
+#include "os.hpp"
+#include "trace_writer.hpp"
+#include "trace_snappyfile.hpp"
+#include "trace_format.hpp"
+
+
+namespace Trace {
+
+
+Writer::Writer() :
+ call_no(0)
+{
+ m_file = new Trace::SnappyFile;
+ close();
+}
+
+Writer::~Writer()
+{
+ close();
+ delete m_file;
+ m_file = NULL;
+}
+
+void
+Writer::close(void) {
+ m_file->close();
+}
+
+bool
+Writer::open(const char *filename) {
+ close();
+
+ if (!m_file->open(filename, File::Write)) {
+ return false;
+ }
+
+ call_no = 0;
+ functions.clear();
+ structs.clear();
+ enums.clear();
+ bitmasks.clear();
+
+ _writeUInt(TRACE_VERSION);
+
+ return true;
+}
+
+void inline
+Writer::_write(const void *sBuffer, size_t dwBytesToWrite) {
+ m_file->write(sBuffer, dwBytesToWrite);
+}
+
+void inline
+Writer::_writeByte(char c) {
+ _write(&c, 1);
+}
+
+void inline
+Writer::_writeUInt(unsigned long long value) {
+ char buf[2 * sizeof value];
+ unsigned len;
+
+ len = 0;
+ do {
+ assert(len < sizeof buf);
+ buf[len] = 0x80 | (value & 0x7f);
+ value >>= 7;
+ ++len;
+ } while (value);
+
+ assert(len);
+ buf[len - 1] &= 0x7f;
+
+ _write(buf, len);
+}
+
+void inline
+Writer::_writeFloat(float value) {
+ assert(sizeof value == 4);
+ _write((const char *)&value, sizeof value);
+}
+
+void inline
+Writer::_writeDouble(double value) {
+ assert(sizeof value == 8);
+ _write((const char *)&value, sizeof value);
+}
+
+void inline
+Writer::_writeString(const char *str) {
+ size_t len = strlen(str);
+ _writeUInt(len);
+ _write(str, len);
+}
+
+inline bool lookup(std::vector<bool> &map, size_t index) {
+ if (index >= map.size()) {
+ map.resize(index + 1);
+ return false;
+ } else {
+ return map[index];
+ }
+}
+
+unsigned Writer::beginEnter(const FunctionSig *sig) {
+ _writeByte(Trace::EVENT_ENTER);
+ _writeUInt(sig->id);
+ if (!lookup(functions, sig->id)) {
+ _writeString(sig->name);
+ _writeUInt(sig->num_args);
+ for (unsigned i = 0; i < sig->num_args; ++i) {
+ _writeString(sig->arg_names[i]);
+ }
+ functions[sig->id] = true;
+ }
+
+ return call_no++;
+}
+
+void Writer::endEnter(void) {
+ _writeByte(Trace::CALL_END);
+}
+
+void Writer::beginLeave(unsigned call) {
+ _writeByte(Trace::EVENT_LEAVE);
+ _writeUInt(call);
+}
+
+void Writer::endLeave(void) {
+ _writeByte(Trace::CALL_END);
+}
+
+void Writer::beginArg(unsigned index) {
+ _writeByte(Trace::CALL_ARG);
+ _writeUInt(index);
+}
+
+void Writer::beginReturn(void) {
+ _writeByte(Trace::CALL_RET);
+}
+
+void Writer::beginArray(size_t length) {
+ _writeByte(Trace::TYPE_ARRAY);
+ _writeUInt(length);
+}
+
+void Writer::beginStruct(const StructSig *sig) {
+ _writeByte(Trace::TYPE_STRUCT);
+ _writeUInt(sig->id);
+ if (!lookup(structs, sig->id)) {
+ _writeString(sig->name);
+ _writeUInt(sig->num_members);
+ for (unsigned i = 0; i < sig->num_members; ++i) {
+ _writeString(sig->member_names[i]);
+ }
+ structs[sig->id] = true;
+ }
+}
+
+void Writer::writeBool(bool value) {
+ _writeByte(value ? Trace::TYPE_TRUE : Trace::TYPE_FALSE);
+}
+
+void Writer::writeSInt(signed long long value) {
+ if (value < 0) {
+ _writeByte(Trace::TYPE_SINT);
+ _writeUInt(-value);
+ } else {
+ _writeByte(Trace::TYPE_UINT);
+ _writeUInt(value);
+ }
+}
+
+void Writer::writeUInt(unsigned long long value) {
+ _writeByte(Trace::TYPE_UINT);
+ _writeUInt(value);
+}
+
+void Writer::writeFloat(float value) {
+ _writeByte(Trace::TYPE_FLOAT);
+ _writeFloat(value);
+}
+
+void Writer::writeDouble(double value) {
+ _writeByte(Trace::TYPE_DOUBLE);
+ _writeDouble(value);
+}
+
+void Writer::writeString(const char *str) {
+ if (!str) {
+ Writer::writeNull();
+ return;
+ }
+ _writeByte(Trace::TYPE_STRING);
+ _writeString(str);
+}
+
+void Writer::writeString(const char *str, size_t len) {
+ if (!str) {
+ Writer::writeNull();
+ return;
+ }
+ _writeByte(Trace::TYPE_STRING);
+ _writeUInt(len);
+ _write(str, len);
+}
+
+void Writer::writeWString(const wchar_t *str) {
+ if (!str) {
+ Writer::writeNull();
+ return;
+ }
+ _writeByte(Trace::TYPE_STRING);
+ _writeString("<wide-string>");
+}
+
+void Writer::writeBlob(const void *data, size_t size) {
+ if (!data) {
+ Writer::writeNull();
+ return;
+ }
+ _writeByte(Trace::TYPE_BLOB);
+ _writeUInt(size);
+ if (size) {
+ _write(data, size);
+ }
+}
+
+void Writer::writeEnum(const EnumSig *sig) {
+ _writeByte(Trace::TYPE_ENUM);
+ _writeUInt(sig->id);
+ if (!lookup(enums, sig->id)) {
+ _writeString(sig->name);
+ Writer::writeSInt(sig->value);
+ enums[sig->id] = true;
+ }
+}
+
+void Writer::writeBitmask(const BitmaskSig *sig, unsigned long long value) {
+ _writeByte(Trace::TYPE_BITMASK);
+ _writeUInt(sig->id);
+ if (!lookup(bitmasks, sig->id)) {
+ _writeUInt(sig->num_flags);
+ for (unsigned i = 0; i < sig->num_flags; ++i) {
+ if (i != 0 && sig->flags[i].value == 0) {
+ OS::DebugMessage("apitrace: warning: sig %s is zero but is not first flag\n", sig->flags[i].name);
+ }
+ _writeString(sig->flags[i].name);
+ _writeUInt(sig->flags[i].value);
+ }
+ bitmasks[sig->id] = true;
+ }
+ _writeUInt(value);
+}
+
+void Writer::writeNull(void) {
+ _writeByte(Trace::TYPE_NULL);
+}
+
+void Writer::writeOpaque(const void *addr) {
+ if (!addr) {
+ Writer::writeNull();
+ return;
+ }
+ _writeByte(Trace::TYPE_OPAQUE);
+ _writeUInt((size_t)addr);
+}
+
+
+} /* namespace Trace */
+
projects / apitrace / blobdiff