1 /**************************************************************************
3 * Copyright 2007-2009 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 **************************************************************************/
39 #include "trace_format.hpp"
45 static gzFile g_gzFile = NULL;
46 static void _Close(void) {
47 if(g_gzFile != NULL) {
53 static void _Open(const char *szExtension) {
56 static unsigned dwCounter = 0;
58 char szFileName[PATH_MAX];
59 const char *lpFileName;
61 lpFileName = getenv("TRACE_PATH");
63 strncpy(szFileName, lpFileName, PATH_MAX);
66 char szProcessName[PATH_MAX];
67 char szCurrentDir[PATH_MAX];
68 OS::GetProcessName(szProcessName, PATH_MAX);
69 OS::GetCurrentDir(szCurrentDir, PATH_MAX);
75 snprintf(szFileName, PATH_MAX, "%s%c%s.%u.%s", szCurrentDir, PATH_SEP, szProcessName, dwCounter, szExtension);
77 snprintf(szFileName, PATH_MAX, "%s%c%s.%s", szCurrentDir, PATH_SEP, szProcessName, szExtension);
79 file = fopen(szFileName, "rb");
90 char szMessage[PATH_MAX];
91 snprintf(szMessage, PATH_MAX, "Tracing to %s\n", szFileName);
92 OS::DebugMessage(szMessage);
95 g_gzFile = gzopen(szFileName, "wb");
98 static inline void Write(const void *sBuffer, size_t dwBytesToWrite) {
102 gzwrite(g_gzFile, sBuffer, dwBytesToWrite);
111 WriteUInt(unsigned long long value) {
112 char buf[2 * sizeof value];
117 assert(len < sizeof buf);
118 buf[len] = 0x80 | (value & 0x7f);
124 buf[len - 1] &= 0x7f;
130 WriteFloat(float value) {
131 assert(sizeof value == 4);
132 Write((const char *)&value, sizeof value);
136 WriteDouble(double value) {
137 assert(sizeof value == 8);
138 Write((const char *)&value, sizeof value);
142 WriteString(const char *str) {
143 size_t len = strlen(str);
148 typedef std::map<const char *, size_t> namemap;
149 static namemap names;
152 WriteName(const char *name) {
153 namemap::iterator it = names.find(name);
154 if (it == names.end()) {
155 size_t name_id = names.size();
158 names[name] = name_id;
160 WriteUInt(it->second);
167 WriteUInt(TRACE_VERSION);
175 static unsigned call_no = 0;
177 unsigned BeginEnter(const char *function) {
180 WriteByte(Trace::EVENT_ENTER);
185 void EndEnter(void) {
186 WriteByte(Trace::CALL_END);
187 gzflush(g_gzFile, Z_SYNC_FLUSH);
191 void BeginLeave(unsigned call) {
193 WriteByte(Trace::EVENT_LEAVE);
197 void EndLeave(void) {
198 WriteByte(Trace::CALL_END);
199 gzflush(g_gzFile, Z_SYNC_FLUSH);
203 void BeginArg(unsigned index, const char *name) {
204 WriteByte(Trace::CALL_ARG);
209 void BeginReturn(void) {
210 WriteByte(Trace::CALL_RET);
213 void BeginArray(size_t length) {
214 WriteByte(Trace::TYPE_ARRAY);
218 void BeginStruct(size_t length) {
219 WriteByte(Trace::TYPE_STRUCT);
223 void BeginMember(const char *name) {
227 void BeginBitmask(void) {
228 WriteByte(Trace::TYPE_BITMASK);
231 void EndBitmask(void) {
232 WriteByte(Trace::TYPE_NULL);
235 void LiteralBool(bool value) {
236 WriteByte(value ? Trace::TYPE_TRUE : Trace::TYPE_FALSE);
239 void LiteralSInt(signed long long value) {
241 WriteByte(Trace::TYPE_SINT);
244 WriteByte(Trace::TYPE_UINT);
249 void LiteralUInt(unsigned long long value) {
250 WriteByte(Trace::TYPE_UINT);
254 void LiteralFloat(float value) {
255 WriteByte(Trace::TYPE_FLOAT);
259 void LiteralFloat(double value) {
260 WriteByte(Trace::TYPE_DOUBLE);
264 void LiteralString(const char *str) {
269 WriteByte(Trace::TYPE_STRING);
273 void LiteralString(const char *str, size_t len) {
278 WriteByte(Trace::TYPE_STRING);
283 void LiteralWString(const wchar_t *str) {
288 WriteByte(Trace::TYPE_STRING);
289 WriteString("<wide-string>");
292 void LiteralBlob(const void *data, size_t size) {
297 WriteByte(Trace::TYPE_BLOB);
304 void LiteralNamedConstant(const char *name, long long value) {
305 WriteByte(Trace::TYPE_CONST);
310 void LiteralNull(void) {
311 WriteByte(Trace::TYPE_NULL);
314 void LiteralOpaque(const void *addr) {
319 WriteByte(Trace::TYPE_OPAQUE);
320 WriteUInt((size_t)addr);
328 } /* namespace Log */