#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;
}
return true;
}
+template <typename Iter>
+inline void
+deleteAll(Iter begin, Iter end)
+{
+ while (begin != end) {
+ delete *begin;
+ ++begin;
+ }
+}
+
+template <typename Container>
+inline void
+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);
}
break;
case Trace::EVENT_LEAVE:
return parse_leave();
- case Trace::EVENT_MESSAGE:
- std::cerr << "message: " << read_string() << "\n";
- break;
default:
- std::cerr << "error: unknown call detail " << c << "\n";
- assert(0);
- /* fallthrough */
+ std::cerr << "error: unknown event " << c << "\n";
+ exit(1);
case -1:
+ for (CallList::iterator it = calls.begin(); it != calls.end(); ++it) {
+ std::cerr << "warning: incomplete call " << (*it)->name() << "\n";
+ std::cerr << **it << "\n";
+ }
return NULL;
}
} while(true);
void Parser::parse_enter(void) {
size_t id = read_uint();
- Call::Signature *sig = lookup(functions, id);
- if (!sig) {
- sig = new Call::Signature;
- sig->name = read_string();
- unsigned size = read_uint();
- for (unsigned i = 0; i < size; ++i) {
- sig->arg_names.push_back(read_string());
+ FunctionSig *sig = lookup(functions, id);
+ const File::Offset offset = file->currentOffset();
+ bool callWithSig = callWithSignature(offset);
+ if (!sig || callWithSig) {
+ if (!sig) {
+ sig = new FunctionSig;
+ sig->id = id;
+ sig->name = 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;
+ functions[id] = sig;
+ m_callSigOffsets.insert(offset);
+ } else {
+ /* skip over the signature */
+ skip_string(); /* name */
+ int num_args = read_uint();
+ for (unsigned i = 0; i < num_args; ++i) {
+ skip_string(); /*arg_name*/
+ }
}
- functions[id] = sig;
}
assert(sig);
Call *call = new Call(sig);
- call->no = next_call_no++;
- parse_call_details(call);
- calls.push_back(call);
+ call->no = next_call_no++;
+
+ if (parse_call_details(call)) {
+ calls.push_back(call);
+ } else {
+ delete call;
+ }
}
Call *Parser::parse_leave(void) {
unsigned call_no = read_uint();
-
Call *call = NULL;
for (CallList::iterator it = calls.begin(); it != calls.end(); ++it) {
if ((*it)->no == call_no) {
break;
}
}
- assert(call);
if (!call) {
return NULL;
}
- parse_call_details(call);
- return call;
+
+ if (parse_call_details(call)) {
+ return call;
+ } else {
+ delete call;
+ return NULL;
+ }
}
-void Parser::parse_call_details(Call *call) {
+bool Parser::parse_call_details(Call *call) {
do {
int c = read_byte();
switch(c) {
case Trace::CALL_END:
- return;
+ return true;
case Trace::CALL_ARG:
parse_arg(call);
break;
call->ret = parse_value();
break;
default:
- std::cerr << "error: unknown call detail " << c << "\n";
- assert(0);
- /* fallthrough */
+ std::cerr << "error: ("<<call->name()<< ") unknown call detail "
+ << c << "\n";
+ exit(1);
case -1:
- return;
+ return false;
}
} while(true);
}
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";
- assert(0);
- return NULL;
+ exit(1);
+ case -1:
+ value = NULL;
+ break;
}
+#if TRACE_VERBOSE
+ if (value) {
+ std::cerr << "\tVALUE " << value << "\n";
+ }
+#endif
+ return value;
}
Value *Parser::parse_float() {
float value;
- gzread(file, &value, sizeof value);
+ file->read(&value, sizeof value);
return new Float(value);
}
Value *Parser::parse_double() {
double value;
- gzread(file, &value, sizeof value);
+ file->read(&value, sizeof value);
return new Float(value);
}
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;
+ EnumSig *sig = lookup(enums, id);
+ const File::Offset offset = file->currentOffset();
+ bool enumWithSig = enumWithSignature(offset);
+ if (!sig || enumWithSig) {
+ if (!sig) {
+ sig = new EnumSig;
+ sig->id = id;
+ sig->name = read_string();
+ Value *value = parse_value();
+ sig->value = value->toSInt();
+ delete value;
+ enums[id] = sig;
+ m_enumSigOffsets.insert(offset);
+ } else {
+ skip_string(); /*name*/
+ scan_value();
+ }
}
assert(sig);
return new 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";
+ BitmaskSig *sig = lookup(bitmasks, id);
+ const File::Offset offset = file->currentOffset();
+ bool bitmaskWithSig = bitmaskWithSignature(offset);
+ if (!sig || bitmaskWithSig) {
+ if (!sig) {
+ sig = new BitmaskSig;
+ 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;
+ bitmasks[id] = sig;
+ m_bitmaskSigOffsets.insert(offset);
+ } else {
+ int num_flags = read_uint();
+ for (int i = 0; i < num_flags; ++i) {
+ skip_string(); /*name */
+ skip_uint(); /* value */
}
}
- bitmasks[id] = sig;
}
assert(sig);
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());
+ StructSig *sig = lookup(structs, id);
+ const File::Offset offset = file->currentOffset();
+ bool structWithSig = structWithSignature(offset);
+ if (!sig || structWithSig) {
+ if (!sig) {
+ sig = new StructSig;
+ 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;
+ structs[id] = sig;
+ m_structSigOffsets.insert(offset);
+ } else {
+ skip_string(); /* name */
+ unsigned num_members = read_uint();
+ for (unsigned i = 0; i < num_members; ++i) {
+ skip_string(); /* member_name */
+ }
}
- structs[id] = sig;
}
assert(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();
}
}
-std::string Parser::read_string(void) {
+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
int c;
unsigned shift = 0;
do {
- c = gzgetc(file);
+ c = file->getc();
if (c == -1) {
break;
}
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 bool Parser::callWithSignature(const File::Offset &offset) const
+{
+ return m_callSigOffsets.find(offset) != m_callSigOffsets.end();
+}
+
+inline bool Parser::structWithSignature(const File::Offset &offset) const
+{
+ return m_structSigOffsets.find(offset) != m_structSigOffsets.end();
+}
+
+inline bool Parser::enumWithSignature(const File::Offset &offset) const
+{
+ return m_enumSigOffsets.find(offset) != m_enumSigOffsets.end();
+}
+
+inline bool Parser::bitmaskWithSignature(const File::Offset &offset) const
+{
+ return m_bitmaskSigOffsets.find(offset) != m_bitmaskSigOffsets.end();
+}
+
+Call * Parser::scan_call()
+{
+ do {
+ int c = read_byte();
+ switch(c) {
+ case Trace::EVENT_ENTER:
+ scan_enter();
+ break;
+ case Trace::EVENT_LEAVE:
+ return scan_leave();
+ default:
+ std::cerr << "error: unknown event " << c << "\n";
+ exit(1);
+ case -1:
+ for (CallList::iterator it = calls.begin(); it != calls.end(); ++it) {
+ std::cerr << "warning: incomplete call " << (*it)->name() << "\n";
+ std::cerr << **it << "\n";
+ }
+ return NULL;
+ }
+ } while (true);
+}
+
+void Parser::scan_enter(void) {
+ size_t id = read_uint();
+
+ FunctionSig *sig = lookup(functions, id);
+ const File::Offset offset = file->currentOffset();
+ if (!sig) {
+ sig = new FunctionSig;
+ sig->id = id;
+ sig->name = 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;
+ functions[id] = sig;
+ m_callSigOffsets.insert(offset);
+ }
+ assert(sig);
+
+ Call *call = new Call(sig);
+ call->no = next_call_no++;
+
+ if (scan_call_details(call)) {
+ calls.push_back(call);
+ } else {
+ delete call;
+ }
+}
+
+Call *Parser::scan_leave(void) {
+ unsigned call_no = read_uint();
+ Call *call = NULL;
+ for (CallList::iterator it = calls.begin(); it != calls.end(); ++it) {
+ if ((*it)->no == call_no) {
+ call = *it;
+ calls.erase(it);
+ break;
+ }
+ }
+ if (!call) {
+ return NULL;
+ }
+
+ if (scan_call_details(call)) {
+ return call;
+ } else {
+ delete call;
+ return NULL;
+ }
+}
+
+bool Parser::scan_call_details(Call *call) {
+ do {
+ int c = read_byte();
+ switch(c) {
+ case Trace::CALL_END:
+ return true;
+ case Trace::CALL_ARG:
+ scan_arg(call);
+ break;
+ case Trace::CALL_RET:
+ scan_value();
+ break;
+ default:
+ std::cerr << "error: ("<<call->name()<< ") unknown call detail "
+ << c << "\n";
+ exit(1);
+ case -1:
+ return false;
+ }
+ } while(true);
+}
+
+void Parser::scan_arg(Call *call) {
+ skip_uint(); /* index */
+ scan_value(); /* 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();
+}
+
+
+void Parser::scan_uint() {
+ skip_uint();
+}
+
+
+void Parser::scan_float() {
+ file->skip(sizeof(float));
+}
+
+
+void Parser::scan_double() {
+ file->skip(sizeof(double));
+}
+
+
+void Parser::scan_string() {
+ skip_string();
+}
+
+
+void Parser::scan_enum() {
+ size_t id = read_uint();
+ EnumSig *sig = lookup(enums, id);
+ const File::Offset offset = file->currentOffset();
+ if (!sig) {
+ sig = new EnumSig;
+ sig->id = id;
+ sig->name = read_string();
+ Value *value = parse_value();
+ sig->value = value->toSInt();
+ delete value;
+ enums[id] = sig;
+ m_enumSigOffsets.insert(offset);
+ }
+ assert(sig);
+}
+
+
+void Parser::scan_bitmask() {
+ size_t id = read_uint();
+ BitmaskSig *sig = lookup(bitmasks, id);
+ const File::Offset offset = file->currentOffset();
+ if (!sig) {
+ sig = new BitmaskSig;
+ 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;
+ bitmasks[id] = sig;
+ m_bitmaskSigOffsets.insert(offset);
+ }
+ assert(sig);
+
+ skip_uint(); /* value */
+}
+
+
+void Parser::scan_array(void) {
+ size_t len = read_uint();
+ for (size_t i = 0; i < len; ++i) {
+ scan_value();
+ }
+}
+
+
+void Parser::scan_blob(void) {
+ size_t size = read_uint();
+ if (size) {
+ file->skip((unsigned)size);
+ }
+}
+
+
+void Parser::scan_struct() {
+ size_t id = read_uint();
+
+ StructSig *sig = lookup(structs, id);
+ const File::Offset offset = file->currentOffset();
+ if (!sig) {
+ sig = new StructSig;
+ 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;
+ structs[id] = sig;
+ m_structSigOffsets.insert(offset);
+ }
+ assert(sig);
+
+ for (size_t i = 0; i < sig->num_members; ++i) {
+ scan_value();
+ }
+}
+
+
+void Parser::scan_opaque() {
+ skip_uint();
+}
+
+
+void Parser::skip_string(void) {
+ size_t len = read_uint();
+ file->skip((unsigned)len);
+}
+
+
+void Parser::skip_uint(void) {
+ int c;
+ do {
+ c = file->getc();
+ if (c == -1) {
+ break;
+ }
+ } while(c & 0x80);
+}
+
+
+inline void Parser::skip_byte(void) {
+ file->skip(1);
+}
+
+
} /* namespace Trace */
projects / apitrace / blobdiff