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Implement compress CompressibleStrings on GC reclaim end event

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* Compress CompressibleStrings on GC reclaim end event
  - if there is reference about data of CompressibleString on stack, we should give up compressing.
    we don't need to search heap space because I redesigned StringView
    (we should not store string buffer data on heap without owner)
* Redesign StringView
  - Don't save string buffer address as its member. because buffer of CompressibleString can be deleted
  - If we don't save string buffer address on StringView, parser performance may dropped.
    becuase parser access string data a lot.
    so I introduce ParserStringView. it saves buffer address. we should ParserStringView on parser only.
    we can save string buffer address while parsing. because GC is disabled while parsing.

* Enable CompressibleString always
* Implement cache of RegExpOptionStrings
* Implement finding system locale function on RuntimeICUBinder avoiding call uloc_getDefault.

Signed-off-by: Seonghyun Kim <sh8281.kim@samsung.com>
This commit is contained in:
Seonghyun Kim 2019-12-26 10:20:10 +09:00 • committed by Hyukwoo Park
commit caa0fbc3fe
32 changed files with 1020 additions and 394 deletions
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33
src/shell/Shell.cpp
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@ -170,12 +170,19 @@ static OptionalRef<StringRef> builtinHelperFileRead(OptionalRef<ExecutionStateRe
}
}
fclose(fp);
#if defined(ENABLE_SOURCE_COMPRESSION)
if (hasNonLatin1Content) {
src = StringRef::createFromUTF8ToCompressibleString(utf8Str.data(), utf8Str.length());
#if defined(ENABLE_COMPRESSIBLE_STRING)
if (state) {
if (hasNonLatin1Content) {
src = StringRef::createFromUTF8ToCompressibleString(state->context(), utf8Str.data(), utf8Str.length());
} else {
src = StringRef::createFromLatin1ToCompressibleString(state->context(), str.data(), str.length());
}
} else {
src = StringRef::createCompressibleString(str.data(), str.length());
if (hasNonLatin1Content) {
src = StringRef::createFromUTF8(utf8Str.data(), utf8Str.length());
} else {
src = StringRef::createFromLatin1(str.data(), str.length());
}
}
#else
if (hasNonLatin1Content) {
@ -543,6 +550,11 @@ int main(int argc, char* argv[])
});
PersistentRefHolder<ContextRef> context = createEscargotContext(instance.get());
if (getenv("GC_FREE_SPACE_DIVISOR") && strlen(getenv("GC_FREE_SPACE_DIVISOR"))) {
int d = atoi(getenv("GC_FREE_SPACE_DIVISOR"));
Memory::setGCFrequency(d);
}
bool runShell = true;
bool seenModule = false;
for (int i = 1; i < argc; i++) {
@ -579,7 +591,11 @@ int main(int argc, char* argv[])
fclose(fp);
runShell = false;
StringRef* src = builtinHelperFileRead(nullptr, argv[i], "read").get();
StringRef* src = Evaluator::execute(context, [](ExecutionStateRef* state, char* c) -> ValueRef* {
return builtinHelperFileRead(state, c, "read").get();
},
argv[i])
.result->asString();
if (!evalScript(context, src, StringRef::createFromUTF8(argv[i], strlen(argv[i])), false, seenModule)) {
return 3;
@ -592,11 +608,6 @@ int main(int argc, char* argv[])
}
}
if (getenv("GC_FREE_SPACE_DIVISOR") && strlen(getenv("GC_FREE_SPACE_DIVISOR"))) {
int d = atoi(getenv("GC_FREE_SPACE_DIVISOR"));
Memory::setGCFrequency(d);
}
while (runShell) {
static char buf[2048];
printf("escargot> ");