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handle strings of arbitrary size in makeByteArray

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This commit is contained in:
Joel Dice 2011-07-09 18:00:19 -06:00
parent 506ec7838e
commit ec4568d806
1 changed files with 13 additions and 9 deletions
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22
src/machine.cpp
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@ -3016,16 +3016,20 @@ popResources(Thread* t)
object
makeByteArray(Thread* t, const char* format, va_list a)
{
const int Size = 256;
char buffer[Size];
int size = 256;
while (true) {
THREAD_RUNTIME_ARRAY(t, char, buffer, size);
int r = vm::vsnprintf(buffer, Size - 1, format, a);
expect(t, r >= 0 and r < Size - 1);
object s = makeByteArray(t, strlen(buffer) + 1);
memcpy(&byteArrayBody(t, s, 0), buffer, byteArrayLength(t, s));
return s;
int r = vm::vsnprintf(RUNTIME_ARRAY_BODY(buffer), size - 1, format, a);
if (r >= 0 and r < size - 1) {
object s = makeByteArray(t, strlen(RUNTIME_ARRAY_BODY(buffer)) + 1);
memcpy(&byteArrayBody(t, s, 0), RUNTIME_ARRAY_BODY(buffer),
byteArrayLength(t, s));
return s;
} else {
size *= 2;
}
}
}
object