Extract fbuffer and use it in parser and generator

1 files changed, 1 insertions, 116 deletions

diff --git a/ext/json/ext/generator/generator.c b/ext/json/ext/generator/generator.c
index b878984..cc313bc 100644
--- a/ext/json/ext/generator/generator.c
+++ b/ext/json/ext/generator/generator.c
@@ -1,3 +1,4 @@
+#include "fbuffer.h"
 #include "generator.h"
 
 #ifdef HAVE_RUBY_ENCODING_H
@@ -293,114 +294,6 @@ static char *fstrndup(const char *ptr, unsigned long len) {
   return result;
 }
 
-/* fbuffer implementation */
-
-static FBuffer *fbuffer_alloc(unsigned long initial_length)
-{
-    FBuffer *fb;
-    if (initial_length <= 0) initial_length = FBUFFER_INITIAL_LENGTH_DEFAULT;
-    fb = ALLOC(FBuffer);
-    memset((void *) fb, 0, sizeof(FBuffer));
-    fb->initial_length = initial_length;
-    return fb;
-}
-
-static void fbuffer_free(FBuffer *fb)
-{
-    if (fb->ptr) ruby_xfree(fb->ptr);
-    ruby_xfree(fb);
-}
-
-static void fbuffer_clear(FBuffer *fb)
-{
-    fb->len = 0;
-}
-
-static void fbuffer_inc_capa(FBuffer *fb, unsigned long requested)
-{
-    unsigned long required;
-
-    if (!fb->ptr) {
-        fb->ptr = ALLOC_N(char, fb->initial_length);
-        fb->capa = fb->initial_length;
-    }
-
-    for (required = fb->capa; requested > required - fb->len; required <<= 1);
-
-    if (required > fb->capa) {
-        REALLOC_N(fb->ptr, char, required);
-        fb->capa = required;
-    }
-}
-
-static void fbuffer_append(FBuffer *fb, const char *newstr, unsigned long len)
-{
-    if (len > 0) {
-        fbuffer_inc_capa(fb, len);
-        MEMCPY(fb->ptr + fb->len, newstr, char, len);
-        fb->len += len;
-    }
-}
-
-static void fbuffer_append_str(FBuffer *fb, VALUE str)
-{
-    const char *newstr = StringValuePtr(str);
-    unsigned long len = RSTRING_LEN(str);
-
-    RB_GC_GUARD(str);
-
-    fbuffer_append(fb, newstr, len);
-}
-
-static void fbuffer_append_char(FBuffer *fb, char newchr)
-{
-    fbuffer_inc_capa(fb, 1);
-    *(fb->ptr + fb->len) = newchr;
-    fb->len++;
-}
-
-static void freverse(char *start, char *end)
-{
-    char c;
-
-    while (end > start) {
-        c = *end, *end-- = *start, *start++ = c;
-    }
-}
-
-static long fltoa(long number, char *buf)
-{
-    static char digits[] = "0123456789";
-    long sign = number;
-    char* tmp = buf;
-
-    if (sign < 0) number = -number;
-    do *tmp++ = digits[number % 10]; while (number /= 10);
-    if (sign < 0) *tmp++ = '-';
-    freverse(buf, tmp - 1);
-    return tmp - buf;
-}
-
-static void fbuffer_append_long(FBuffer *fb, long number)
-{
-    char buf[20];
-    unsigned long len = fltoa(number, buf);
-    fbuffer_append(fb, buf, len);
-}
-
-static FBuffer *fbuffer_dup(FBuffer *fb)
-{
-    unsigned long len = fb->len;
-    FBuffer *result;
-
-    assert(len > 0);
-    if (len > 0) {
-        result = fbuffer_alloc(len);
-        fbuffer_append(result, FBUFFER_PAIR(fb));
-    }
-    return result;
-}
-
 /*
  * Document-module: JSON::Ext::Generator
  *
@@ -951,14 +844,6 @@ static FBuffer *cState_prepare_buffer(VALUE self)
     return buffer;
 }
 
-static VALUE fbuffer_to_s(FBuffer *fb)
-{
-    VALUE result = rb_str_new(FBUFFER_PAIR(fb));
-    fbuffer_free(fb);
-    FORCE_UTF8(result);
-    return result;
-}
-
 static VALUE cState_partial_generate(VALUE self, VALUE obj)
 {
     FBuffer *buffer = cState_prepare_buffer(self);