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#include "stdafx.h"
#include "StackTrace.h"
#include "StrBuf.h"
#include "Convert.h"
#include "Utils/StackInfoSet.h"
namespace storm {
StackTrace::StackTrace(Engine &e) : frames(new (e) Array<Frame>()) {}
StackTrace::Frame::Frame(void *base, Nat offset, Nat id) : base(base), offset(offset), id(id) {}
void StackTrace::deepCopy(CloneEnv *env) {
frames = new (env) Array<Frame>(*frames);
// No need to call 'deepCopy'.
}
class StrBufOut : public GenericOutput {
public:
StrBufOut(StrBuf *to) : to(to), frameNumber(0) {}
virtual void put(const wchar *str) { *to << str; }
virtual void put(const char *str) { *to << toWChar(to->engine(), str)->v; }
virtual void put(size_t i) { *to << i; }
virtual void putHex(size_t i) { *to << hex(i); }
virtual void nextFrame() {
if (frameNumber > 0)
*to << S("\n");
*to << width(3) << (frameNumber++) << S(": ");
}
private:
StrBuf *to;
Nat frameNumber;
};
void StackTrace::format(StrBuf *to) const {
StackInfoSet &s = stackInfo();
StrBufOut adapter(to);
for (Nat i = 0; i < frames->count(); i++) {
adapter.nextFrame();
const Frame &f = frames->at(i);
if (f.id == Frame::nextThread()) {
*to << S("-- spawned from thread 0x") << hex(f.ptr()) << S(" --");
} else {
s.format(adapter, f.id, f.base, f.offset);
}
}
}
Str *StackTrace::format() const {
StrBuf *out = new (frames) StrBuf();
format(out);
return out->toS();
}
wostream &operator <<(wostream &to, const StackTrace &trace) {
for (Nat i = 0; i < trace.count(); i++) {
if (i > 0)
to << std::endl;
to << std::setw(3) << i << L": ";
if (trace[i].id == StackTrace::Frame::nextThread())
to << L"-- spawned from thread 0x" << trace[i].ptr() << L" --";
else
to << L"at 0x" << trace[i].ptr();
}
return to;
}
void StackTrace::toS(StrBuf *to) const {
for (Nat i = 0; i < count(); i++) {
if (i > 0)
*to << S("\n");
*to << width(3) << i << S(": ");
const Frame &frame = frames->at(i);
if (frame.id == Frame::nextThread())
*to << S("-- spawned from thread 0x") << hex(frame.ptr()) << S(" --");
else
*to << S("at 0x") << hex(frame.ptr());
}
}
class StormGen : public TraceGen {
public:
StackTrace &result;
StormGen(StackTrace &result) : result(result) {}
void init(size_t count) {
if (count > 0)
result.reserve(Nat(count));
}
void put(const StackFrame &frame) {
result.push(StackTrace::Frame(frame.fnBase, frame.offset, frame.id));
}
};
StackTrace collectStackTrace(EnginePtr e) {
return collectStackTrace(e, (void *)null);
}
StackTrace collectStackTrace(EnginePtr e, Nat ignore) {
StackTrace result(e.v);
StormGen gen(result);
createStackTrace(gen, ignore, null);
return result;
}
StackTrace collectStackTrace(EnginePtr e, void *state) {
StackTrace result(e.v);
StormGen gen(result);
createStackTrace(gen, 0, state);
return result;
}
class StormAppendGen : public StormGen {
public:
Nat original;
StormAppendGen(StackTrace &to) : StormGen(to), original(to.count()) {}
void init(size_t count) {
if (count > 0)
result.reserve(Nat(original + count));
}
void put(const StackFrame &frame) {
// Overwrite the first stack frame.
if (result.count() == original) {
result.push(StackTrace::Frame(os::UThread::current().threadData(),
0,
StackTrace::Frame::nextThread()));
} else {
StormGen::put(frame);
}
}
};
void appendStackTrace(StackTrace &to, Nat ignore) {
StormAppendGen gen(to);
createStackTrace(gen, max(Nat(1), ignore) - 1, null);
}
}
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