#include <assert.h>
#include <stdlib.h>
-#include <zlib.h>
-
+#include "trace_file.hpp"
+#include "trace_snappyfile.hpp"
#include "trace_parser.hpp"
bool Parser::open(const char *filename) {
- file = gzopen(filename, "rb");
- if (!file) {
+ assert(!file);
+ if (File::isZLibCompressed(filename)) {
+ file = new ZLibFile;
+ } else {
+ file = new SnappyFile;
+ }
+
+ if (!file->open(filename, File::Read)) {
return false;
}
version = read_uint();
if (version > TRACE_VERSION) {
- std::cerr << "error: unsupported format version" << version << "\n";
+ std::cerr << "error: unsupported trace format version " << version << "\n";
return false;
}
template <typename Container>
inline void
-deleteAll(const Container &c)
+deleteAll(Container &c)
{
deleteAll(c.begin(), c.end());
+ c.clear();
}
void Parser::close(void) {
if (file) {
- gzclose(file);
+ file->close();
+ delete file;
file = NULL;
}
deleteAll(calls);
- deleteAll(functions);
- deleteAll(structs);
- deleteAll(enums);
- deleteAll(bitmasks);
+
+ // Delete all signature data. Signatures are mere structures which don't
+ // own their own memory, so we need to destroy all data we created here.
+
+ for (FunctionMap::iterator it = functions.begin(); it != functions.end(); ++it) {
+ FunctionSigState *sig = *it;
+ if (sig) {
+ delete [] sig->name;
+ for (unsigned arg = 0; arg < sig->num_args; ++arg) {
+ delete [] sig->arg_names[arg];
+ }
+ delete [] sig->arg_names;
+ delete sig;
+ }
+ }
+ functions.clear();
+
+ for (StructMap::iterator it = structs.begin(); it != structs.end(); ++it) {
+ StructSigState *sig = *it;
+ if (sig) {
+ delete [] sig->name;
+ for (unsigned member = 0; member < sig->num_members; ++member) {
+ delete [] sig->member_names[member];
+ }
+ delete [] sig->member_names;
+ delete sig;
+ }
+ }
+ structs.clear();
+
+ for (EnumMap::iterator it = enums.begin(); it != enums.end(); ++it) {
+ EnumSigState *sig = *it;
+ if (sig) {
+ delete [] sig->name;
+ delete sig;
+ }
+ }
+ enums.clear();
+
+ for (BitmaskMap::iterator it = bitmasks.begin(); it != bitmasks.end(); ++it) {
+ BitmaskSigState *sig = *it;
+ if (sig) {
+ for (unsigned flag = 0; flag < sig->num_flags; ++flag) {
+ delete [] sig->flags[flag].name;
+ }
+ delete [] sig->flags;
+ delete sig;
+ }
+ }
+ bitmasks.clear();
}
-Call *Parser::parse_call(void) {
+void Parser::getBookmark(ParseBookmark &bookmark) {
+ bookmark.offset = file->currentOffset();
+ bookmark.next_call_no = next_call_no;
+}
+
+
+void Parser::setBookmark(const ParseBookmark &bookmark) {
+ file->setCurrentOffset(bookmark.offset);
+ next_call_no = bookmark.next_call_no;
+
+ // Simply ignore all pending calls
+ deleteAll(calls);
+}
+
+
+Call *Parser::parse_call(Mode mode) {
do {
int c = read_byte();
switch(c) {
case Trace::EVENT_ENTER:
- parse_enter();
+ parse_enter(mode);
break;
case Trace::EVENT_LEAVE:
- return parse_leave();
- case Trace::EVENT_MESSAGE:
- std::cerr << "message: " << read_string() << "\n";
- break;
+ return parse_leave(mode);
default:
std::cerr << "error: unknown event " << c << "\n";
exit(1);
}
-void Parser::parse_enter(void) {
+FunctionSig *Parser::parse_function_sig(void) {
size_t id = read_uint();
- Call::Signature *sig = lookup(functions, id);
+ FunctionSigState *sig = lookup(functions, id);
+
if (!sig) {
- sig = new Call::Signature;
+ /* parse the signature */
+ sig = new FunctionSigState;
+ sig->id = id;
sig->name = read_string();
- unsigned size = read_uint();
- for (unsigned i = 0; i < size; ++i) {
- sig->arg_names.push_back(read_string());
+ sig->num_args = read_uint();
+ const char **arg_names = new const char *[sig->num_args];
+ for (unsigned i = 0; i < sig->num_args; ++i) {
+ arg_names[i] = read_string();
}
+ sig->arg_names = arg_names;
+ sig->offset = file->currentOffset();
functions[id] = sig;
+ } else if (file->currentOffset() < sig->offset) {
+ /* skip over the signature */
+ skip_string(); /* name */
+ int num_args = read_uint();
+ for (unsigned i = 0; i < num_args; ++i) {
+ skip_string(); /*arg_name*/
+ }
+ }
+
+ assert(sig);
+ return sig;
+}
+
+
+StructSig *Parser::parse_struct_sig() {
+ size_t id = read_uint();
+
+ StructSigState *sig = lookup(structs, id);
+
+ if (!sig) {
+ /* parse the signature */
+ sig = new StructSigState;
+ sig->id = id;
+ sig->name = read_string();
+ sig->num_members = read_uint();
+ const char **member_names = new const char *[sig->num_members];
+ for (unsigned i = 0; i < sig->num_members; ++i) {
+ member_names[i] = read_string();
+ }
+ sig->member_names = member_names;
+ sig->offset = file->currentOffset();
+ structs[id] = sig;
+ } else if (file->currentOffset() < sig->offset) {
+ /* skip over the signature */
+ skip_string(); /* name */
+ unsigned num_members = read_uint();
+ for (unsigned i = 0; i < num_members; ++i) {
+ skip_string(); /* member_name */
+ }
+ }
+
+ assert(sig);
+ return sig;
+}
+
+
+EnumSig *Parser::parse_enum_sig() {
+ size_t id = read_uint();
+
+ EnumSigState *sig = lookup(enums, id);
+
+ if (!sig) {
+ /* parse the signature */
+ sig = new EnumSigState;
+ sig->id = id;
+ sig->name = read_string();
+ Value *value = parse_value();
+ sig->value = value->toSInt();
+ delete value;
+ sig->offset = file->currentOffset();
+ enums[id] = sig;
+ } else if (file->currentOffset() < sig->offset) {
+ /* skip over the signature */
+ skip_string(); /*name*/
+ scan_value();
}
+
assert(sig);
+ return sig;
+}
+
+
+BitmaskSig *Parser::parse_bitmask_sig() {
+ size_t id = read_uint();
+
+ BitmaskSigState *sig = lookup(bitmasks, id);
+
+ if (!sig) {
+ /* parse the signature */
+ sig = new BitmaskSigState;
+ sig->id = id;
+ sig->num_flags = read_uint();
+ BitmaskFlag *flags = new BitmaskFlag[sig->num_flags];
+ for (BitmaskFlag *it = flags; it != flags + sig->num_flags; ++it) {
+ it->name = read_string();
+ it->value = read_uint();
+ if (it->value == 0 && it != flags) {
+ std::cerr << "warning: bitmask " << it->name << " is zero but is not first flag\n";
+ }
+ }
+ sig->flags = flags;
+ sig->offset = file->currentOffset();
+ bitmasks[id] = sig;
+ } else if (file->currentOffset() < sig->offset) {
+ /* skip over the signature */
+ int num_flags = read_uint();
+ for (int i = 0; i < num_flags; ++i) {
+ skip_string(); /*name */
+ skip_uint(); /* value */
+ }
+ }
+
+ assert(sig);
+ return sig;
+}
+
+
+void Parser::parse_enter(Mode mode) {
+ FunctionSig *sig = parse_function_sig();
Call *call = new Call(sig);
+
call->no = next_call_no++;
- if (parse_call_details(call)) {
+ if (parse_call_details(call, mode)) {
calls.push_back(call);
} else {
delete call;
}
-Call *Parser::parse_leave(void) {
+Call *Parser::parse_leave(Mode mode) {
unsigned call_no = read_uint();
Call *call = NULL;
for (CallList::iterator it = calls.begin(); it != calls.end(); ++it) {
return NULL;
}
- if (parse_call_details(call)) {
+ if (parse_call_details(call, mode)) {
return call;
} else {
delete call;
}
-bool Parser::parse_call_details(Call *call) {
+bool Parser::parse_call_details(Call *call, Mode mode) {
do {
int c = read_byte();
switch(c) {
case Trace::CALL_END:
return true;
case Trace::CALL_ARG:
- parse_arg(call);
+ parse_arg(call, mode);
break;
case Trace::CALL_RET:
- call->ret = parse_value();
+ call->ret = parse_value(mode);
break;
default:
- std::cerr << "error: unknown call detail " << c << "\n";
+ std::cerr << "error: ("<<call->name()<< ") unknown call detail "
+ << c << "\n";
exit(1);
case -1:
return false;
}
-void Parser::parse_arg(Call *call) {
+void Parser::parse_arg(Call *call, Mode mode) {
unsigned index = read_uint();
- Value *value = parse_value();
- if (index >= call->args.size()) {
- call->args.resize(index + 1);
+ Value *value = parse_value(mode);
+ if (value) {
+ if (index >= call->args.size()) {
+ call->args.resize(index + 1);
+ }
+ call->args[index] = value;
}
- call->args[index] = value;
}
Value *Parser::parse_value(void) {
int c;
+ Value *value;
c = read_byte();
switch(c) {
case Trace::TYPE_NULL:
- return new Null;
+ value = new Null;
+ break;
case Trace::TYPE_FALSE:
- return new Bool(false);
+ value = new Bool(false);
+ break;
case Trace::TYPE_TRUE:
- return new Bool(true);
+ value = new Bool(true);
+ break;
case Trace::TYPE_SINT:
- return parse_sint();
+ value = parse_sint();
+ break;
case Trace::TYPE_UINT:
- return parse_uint();
+ value = parse_uint();
+ break;
case Trace::TYPE_FLOAT:
- return parse_float();
+ value = parse_float();
+ break;
case Trace::TYPE_DOUBLE:
- return parse_double();
+ value = parse_double();
+ break;
case Trace::TYPE_STRING:
- return parse_string();
+ value = parse_string();
+ break;
case Trace::TYPE_ENUM:
- return parse_enum();
+ value = parse_enum();
+ break;
case Trace::TYPE_BITMASK:
- return parse_bitmask();
+ value = parse_bitmask();
+ break;
case Trace::TYPE_ARRAY:
- return parse_array();
+ value = parse_array();
+ break;
case Trace::TYPE_STRUCT:
- return parse_struct();
+ value = parse_struct();
+ break;
case Trace::TYPE_BLOB:
- return parse_blob();
+ value = parse_blob();
+ break;
case Trace::TYPE_OPAQUE:
- return parse_opaque();
+ value = parse_opaque();
+ break;
default:
std::cerr << "error: unknown type " << c << "\n";
exit(1);
case -1:
- return NULL;
+ value = NULL;
+ break;
+ }
+#if TRACE_VERBOSE
+ if (value) {
+ std::cerr << "\tVALUE " << value << "\n";
+ }
+#endif
+ return value;
+}
+
+
+void Parser::scan_value(void) {
+ int c = read_byte();
+ switch(c) {
+ case Trace::TYPE_NULL:
+ case Trace::TYPE_FALSE:
+ case Trace::TYPE_TRUE:
+ break;
+ case Trace::TYPE_SINT:
+ scan_sint();
+ break;
+ case Trace::TYPE_UINT:
+ scan_uint();
+ break;
+ case Trace::TYPE_FLOAT:
+ scan_float();
+ break;
+ case Trace::TYPE_DOUBLE:
+ scan_double();
+ break;
+ case Trace::TYPE_STRING:
+ scan_string();
+ break;
+ case Trace::TYPE_ENUM:
+ scan_enum();
+ break;
+ case Trace::TYPE_BITMASK:
+ scan_bitmask();
+ break;
+ case Trace::TYPE_ARRAY:
+ scan_array();
+ break;
+ case Trace::TYPE_STRUCT:
+ scan_struct();
+ break;
+ case Trace::TYPE_BLOB:
+ scan_blob();
+ break;
+ case Trace::TYPE_OPAQUE:
+ scan_opaque();
+ break;
+ default:
+ std::cerr << "error: unknown type " << c << "\n";
+ exit(1);
+ case -1:
+ break;
}
}
}
+void Parser::scan_sint() {
+ skip_uint();
+}
+
+
Value *Parser::parse_uint() {
return new UInt(read_uint());
}
+void Parser::scan_uint() {
+ skip_uint();
+}
+
+
Value *Parser::parse_float() {
float value;
- gzread(file, &value, sizeof value);
+ file->read(&value, sizeof value);
return new Float(value);
}
+void Parser::scan_float() {
+ file->skip(sizeof(float));
+}
+
+
Value *Parser::parse_double() {
double value;
- gzread(file, &value, sizeof value);
+ file->read(&value, sizeof value);
return new Float(value);
}
+void Parser::scan_double() {
+ file->skip(sizeof(double));
+}
+
+
Value *Parser::parse_string() {
return new String(read_string());
}
+void Parser::scan_string() {
+ skip_string();
+}
+
+
Value *Parser::parse_enum() {
- size_t id = read_uint();
- Enum::Signature *sig = lookup(enums, id);
- if (!sig) {
- std::string name = read_string();
- Value *value = parse_value();
- sig = new Enum::Signature(name, value);
- enums[id] = sig;
- }
- assert(sig);
+ EnumSig *sig = parse_enum_sig();
return new Enum(sig);
}
+void Parser::scan_enum() {
+ parse_enum_sig();
+}
+
+
Value *Parser::parse_bitmask() {
- size_t id = read_uint();
- Bitmask::Signature *sig = lookup(bitmasks, id);
- if (!sig) {
- size_t size = read_uint();
- sig = new Bitmask::Signature(size);
- for (Bitmask::Signature::iterator it = sig->begin(); it != sig->end(); ++it) {
- it->first = read_string();
- it->second = read_uint();
- if (it->second == 0 && it != sig->begin()) {
- std::cerr << "warning: bitmask " << it->first << " is zero but is not first flag\n";
- }
- }
- bitmasks[id] = sig;
- }
- assert(sig);
+ BitmaskSig *sig = parse_bitmask_sig();
unsigned long long value = read_uint();
}
+void Parser::scan_bitmask() {
+ parse_bitmask_sig();
+ skip_uint(); /* value */
+}
+
+
Value *Parser::parse_array(void) {
size_t len = read_uint();
Array *array = new Array(len);
}
+void Parser::scan_array(void) {
+ size_t len = read_uint();
+ for (size_t i = 0; i < len; ++i) {
+ scan_value();
+ }
+}
+
+
Value *Parser::parse_blob(void) {
size_t size = read_uint();
Blob *blob = new Blob(size);
if (size) {
- gzread(file, blob->buf, (unsigned)size);
+ file->read(blob->buf, (unsigned)size);
}
return blob;
}
-Value *Parser::parse_struct() {
- size_t id = read_uint();
-
- Struct::Signature *sig = lookup(structs, id);
- if (!sig) {
- sig = new Struct::Signature;
- sig->name = read_string();
- unsigned size = read_uint();
- for (unsigned i = 0; i < size; ++i) {
- sig->member_names.push_back(read_string());
- }
- structs[id] = sig;
+void Parser::scan_blob(void) {
+ size_t size = read_uint();
+ if (size) {
+ file->skip(size);
}
- assert(sig);
+}
+
+Value *Parser::parse_struct() {
+ StructSig *sig = parse_struct_sig();
Struct *value = new Struct(sig);
- for (size_t i = 0; i < sig->member_names.size(); ++i) {
+ for (size_t i = 0; i < sig->num_members; ++i) {
value->members[i] = parse_value();
}
}
+void Parser::scan_struct() {
+ StructSig *sig = parse_struct_sig();
+ for (size_t i = 0; i < sig->num_members; ++i) {
+ scan_value();
+ }
+}
+
+
Value *Parser::parse_opaque() {
unsigned long long addr;
addr = read_uint();
}
-std::string Parser::read_string(void) {
+void Parser::scan_opaque() {
+ skip_uint();
+}
+
+
+const char * Parser::read_string(void) {
size_t len = read_uint();
- if (!len) {
- return std::string();
+ char * value = new char[len + 1];
+ if (len) {
+ file->read(value, (unsigned)len);
}
- char * buf = new char[len];
- gzread(file, buf, (unsigned)len);
- std::string value(buf, len);
- delete [] buf;
+ value[len] = 0;
#if TRACE_VERBOSE
std::cerr << "\tSTRING \"" << value << "\"\n";
#endif
}
+void Parser::skip_string(void) {
+ size_t len = read_uint();
+ file->skip(len);
+}
+
+
unsigned long long Parser::read_uint(void) {
unsigned long long value = 0;
int c;
unsigned shift = 0;
do {
- c = gzgetc(file);
+ c = file->getc();
if (c == -1) {
break;
}
}
+void Parser::skip_uint(void) {
+ int c;
+ do {
+ c = file->getc();
+ if (c == -1) {
+ break;
+ }
+ } while(c & 0x80);
+}
+
+
inline int Parser::read_byte(void) {
- int c = gzgetc(file);
+ int c = file->getc();
#if TRACE_VERBOSE
if (c < 0)
std::cerr << "\tEOF" << "\n";
}
+inline void Parser::skip_byte(void) {
+ file->skip(1);
+}
+
+
} /* namespace Trace */
projects / apitrace / blobdiff