Faster FileAccess::get_line()
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1c0007ba71
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1 changed files with 54 additions and 1 deletions
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@ -273,9 +273,62 @@ String FileAccess::get_token() const {
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return String::utf8(token.get_data());
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}
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class CharBuffer {
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Vector<char> vector;
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char stack_buffer[256];
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char *buffer;
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int capacity;
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int written;
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bool grow() {
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if (vector.resize(next_power_of_2(1 + written)) != OK) {
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return false;
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}
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if (buffer == stack_buffer) { // first chunk?
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for (int i = 0; i < written; i++) {
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vector[i] = stack_buffer[i];
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}
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}
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buffer = vector.ptrw();
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capacity = vector.size();
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ERR_FAIL_COND_V(written >= capacity, false);
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return true;
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}
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public:
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_FORCE_INLINE_ CharBuffer() :
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buffer(stack_buffer),
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capacity(sizeof(stack_buffer) / sizeof(char)),
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written(0) {
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}
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_FORCE_INLINE_ void push_back(char c) {
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if (written >= capacity) {
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ERR_FAIL_COND(!grow());
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}
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buffer[written++] = c;
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}
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_FORCE_INLINE_ const char *get_data() const {
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return buffer;
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}
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};
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String FileAccess::get_line() const {
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CharString line;
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CharBuffer line;
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CharType c = get_8();
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