Module: FastLZ
- Defined in:
- ext/fastlz-ruby.c
Class Method Summary collapse
Class Method Details
.compress(*args) ⇒ Object
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# File 'ext/fastlz-ruby.c', line 20
static VALUE rb_fastlz_compress(int argc, VALUE *argv, VALUE self) {
VALUE v_src, v_level;
char *src, *dst;
int slen, dlen, level;
rb_scan_args(argc, argv, "11", &v_src, &v_level);
Check_Type(v_src, T_STRING);
if (NIL_P(v_level)) {
level = 0;
} else {
level = NUM2INT(v_level);
if (level != 1 || level != 2) {
rb_raise(rb_eRuntimeError, "only level 1 and level 2 are supported");
}
}
src = RSTRING_PTR(v_src);
slen = RSTRING_LEN(v_src);
dst = alloca(slen * 2);
if (level) {
dlen = fastlz_compress_level(level, src, slen, dst);
} else {
dlen = fastlz_compress(src, slen, dst);
}
return rb_str_new(dst, dlen);
}
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.decompress(*args) ⇒ Object
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# File 'ext/fastlz-ruby.c', line 53
static VALUE rb_fastlz_decompress(int argc, VALUE *argv, VALUE self) {
VALUE v_src, v_max;
char *src, *dst;
int slen, dlen, max;
rb_scan_args(argc, argv, "11", &v_src, &v_max);
Check_Type(v_src, T_STRING);
src = RSTRING_PTR(v_src);
slen = RSTRING_LEN(v_src);
if (NIL_P(v_max)) {
max = slen * 4;
} else {
max = NUM2INT(v_max);
}
dst = alloca(max + 1);
dlen = fastlz_decompress(src, slen, dst, max);
return rb_str_new(dst, dlen);
}
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