Hi,
I am wondering what is the most effective way of writing a JS binary
string (array of numbers-bytes) into a file. My first attempt folows:
v8::Handle<v8::Array> arr =
v8::Handle<v8::Array>::Cast(args[0]);
int len = arr->Length();
int max = 4096;
int current = 0;
char buf[max];
for (int i=0;i<len;i++) {
v8::Handle<v8::Integer> a = v8::Integer::New(arr-
>Get(v8::Integer::New(i))->IntegerValue());
buf[current++] = (char) a->Int32Value();
if (current == max) {
fwrite(buf, sizeof(char), current, f);
current = 0;
}
}
if (current) { fwrite(buf, sizeof(char), current, f); }
This code writes a 10mbyte file to disk in about 2.2 seconds on a
typical system. Can someone suggest an improvement please?
Sincerely,
Ondrej Zara
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