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 **************************************************************************/
38 #include "trace_write.hpp"
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");
89 OS::DebugMessage("apitrace: tracing to %s\n", szFileName);
91 g_gzFile = gzopen(szFileName, "wb");
94 static inline void Write(const void *sBuffer, size_t dwBytesToWrite) {
98 gzwrite(g_gzFile, sBuffer, dwBytesToWrite);
107 WriteUInt(unsigned long long value) {
108 char buf[2 * sizeof value];
113 assert(len < sizeof buf);
114 buf[len] = 0x80 | (value & 0x7f);
120 buf[len - 1] &= 0x7f;
126 WriteFloat(float value) {
127 assert(sizeof value == 4);
128 Write((const char *)&value, sizeof value);
132 WriteDouble(double value) {
133 assert(sizeof value == 8);
134 Write((const char *)&value, sizeof value);
138 WriteString(const char *str) {
139 size_t len = strlen(str);
144 typedef std::map<const char *, size_t> namemap;
145 static namemap names;
148 WriteName(const char *name) {
149 namemap::iterator it = names.find(name);
150 if (it == names.end()) {
151 size_t name_id = names.size();
154 names[name] = name_id;
156 WriteUInt(it->second);
163 WriteUInt(TRACE_VERSION);
171 static unsigned call_no = 0;
173 static std::map<Id, bool> functions;
174 static std::map<Id, bool> enums;
175 static std::map<Id, bool> bitmasks;
178 unsigned BeginEnter(const FunctionSig &function) {
181 WriteByte(Trace::EVENT_ENTER);
182 WriteUInt(function.id);
183 if (!functions[function.id]) {
184 WriteString(function.name);
185 WriteUInt(function.num_args);
186 for (unsigned i = 0; i < function.num_args; ++i) {
187 WriteString(function.args[i]);
189 functions[function.id] = true;
194 void EndEnter(void) {
195 WriteByte(Trace::CALL_END);
196 gzflush(g_gzFile, Z_SYNC_FLUSH);
200 void BeginLeave(unsigned call) {
202 WriteByte(Trace::EVENT_LEAVE);
206 void EndLeave(void) {
207 WriteByte(Trace::CALL_END);
208 gzflush(g_gzFile, Z_SYNC_FLUSH);
212 void BeginArg(unsigned index) {
213 WriteByte(Trace::CALL_ARG);
217 void BeginReturn(void) {
218 WriteByte(Trace::CALL_RET);
221 void BeginArray(size_t length) {
222 WriteByte(Trace::TYPE_ARRAY);
226 void BeginStruct(size_t length) {
227 WriteByte(Trace::TYPE_STRUCT);
231 void BeginMember(const char *name) {
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 LiteralEnum(const EnumSig *sig) {
305 WriteByte(Trace::TYPE_ENUM);
307 if (!enums[sig->id]) {
308 WriteString(sig->name);
309 LiteralSInt(sig->value);
310 enums[sig->id] = true;
314 void LiteralBitmask(const BitmaskSig &bitmask, unsigned long long value) {
315 WriteByte(Trace::TYPE_BITMASK);
316 WriteUInt(bitmask.id);
317 if (!bitmasks[bitmask.id]) {
318 WriteUInt(bitmask.count);
319 for (unsigned i = 0; i < bitmask.count; ++i) {
320 WriteString(bitmask.values[i].name);
321 WriteUInt(bitmask.values[i].value);
323 bitmasks[bitmask.id] = true;
328 void LiteralNull(void) {
329 WriteByte(Trace::TYPE_NULL);
332 void LiteralOpaque(const void *addr) {
337 WriteByte(Trace::TYPE_OPAQUE);
338 WriteUInt((size_t)addr);
346 } /* namespace Trace */