From 2078eb35ec58db6cf2e62f6e75ba1e8b7f9ddb21 Mon Sep 17 00:00:00 2001
From: akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 3 Sep 2008 14:34:09 +0000
Subject: * transcode.c (rb_transcoding): moved from transcode_data.h.  
 (TRANSCODING_READBUF): ditto.   (TRANSCODING_WRITEBUF): ditto.  
 (TRANSCODING_STATE_EMBED_MAX): ditto.   (TRANSCODING_STATE): ditto.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@19097 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 transcode.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

(limited to 'transcode.c')

diff --git a/transcode.c b/transcode.c
index ca772ce84..aa605f830 100644
--- a/transcode.c
+++ b/transcode.c
@@ -31,6 +31,48 @@ static VALUE sym_finished;
 static VALUE sym_output_followed_by_input;
 static VALUE sym_incomplete_input;
 
+/* dynamic structure, one per conversion (similar to iconv_t) */
+/* may carry conversion state (e.g. for iso-2022-jp) */
+typedef struct rb_transcoding {
+    const rb_transcoder *transcoder;
+
+    int flags;
+
+    int resume_position;
+    unsigned int next_table;
+    VALUE next_info;
+    unsigned char next_byte;
+
+    int recognized_len; /* already interpreted */
+    int readagain_len; /* not yet interpreted */
+    union {
+        unsigned char ary[8]; /* max_input <= sizeof(ary) */
+        unsigned char *ptr; /* length: max_input */
+    } readbuf; /* recognized_len + readagain_len used */
+
+    int writebuf_off;
+    int writebuf_len;
+    union {
+        unsigned char ary[8]; /* max_output <= sizeof(ary) */
+        unsigned char *ptr; /* length: max_output */
+    } writebuf;
+
+    void *state; /* opaque data for stateful encoding */
+} rb_transcoding;
+#define TRANSCODING_READBUF(tc) \
+    ((tc)->transcoder->max_input <= sizeof((tc)->readbuf.ary) ? \
+     (tc)->readbuf.ary : \
+     (tc)->readbuf.ptr)
+#define TRANSCODING_WRITEBUF(tc) \
+    ((tc)->transcoder->max_output <= sizeof((tc)->writebuf.ary) ? \
+     (tc)->writebuf.ary : \
+     (tc)->writebuf.ptr)
+#define TRANSCODING_STATE_EMBED_MAX sizeof(void *)
+#define TRANSCODING_STATE(tc) \
+    ((tc)->transcoder->state_size <= sizeof((tc)->state) ? \
+     (void *)&(tc)->state : \
+     (tc)->state)
+
 typedef struct {
     struct rb_transcoding *tc;
     unsigned char *out_buf_start;
-- 
cgit