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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2008-09-13 09:52:02 +0000
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2008-09-13 09:52:02 +0000
commit0a3fc5be05c3f19eaa637628c20ab49640ae1faf (patch)
tree4175fa54fef7bfedb1def557dc8cd995b4fc24ad /transcode.c
parentd4c74738415fcc9f2d7941d4a03ddf2904b955ce (diff)
* transcode.c (rb_transcoding): align state field.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19326 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'transcode.c')
-rw-r--r--transcode.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/transcode.c b/transcode.c
index 8bb5f7bede..4d1107ddc4 100644
--- a/transcode.c
+++ b/transcode.c
@@ -67,7 +67,10 @@ typedef struct rb_transcoding {
unsigned char *ptr; /* length: max_output */
} writebuf;
- void *state; /* opaque data for stateful encoding */
+ union rb_transcoding_state_t { /* opaque data for stateful encoding */
+ void *ptr;
+ double dummy_for_alignment;
+ } state;
} rb_transcoding;
#define TRANSCODING_READBUF(tc) \
((tc)->transcoder->max_input <= sizeof((tc)->readbuf.ary) ? \
@@ -77,11 +80,11 @@ typedef struct rb_transcoding {
((tc)->transcoder->max_output <= sizeof((tc)->writebuf.ary) ? \
(tc)->writebuf.ary : \
(tc)->writebuf.ptr)
-#define TRANSCODING_STATE_EMBED_MAX sizeof(void *)
+#define TRANSCODING_STATE_EMBED_MAX sizeof(union rb_transcoding_state_t)
#define TRANSCODING_STATE(tc) \
((tc)->transcoder->state_size <= sizeof((tc)->state) ? \
(void *)&(tc)->state : \
- (tc)->state)
+ (tc)->state.ptr)
typedef struct {
struct rb_transcoding *tc;
@@ -728,7 +731,7 @@ rb_transcoding_open_by_transcoder(const rb_transcoder *tr, int flags)
tc->transcoder = tr;
tc->flags = flags;
if (TRANSCODING_STATE_EMBED_MAX < tr->state_size)
- tc->state = xmalloc(tr->state_size);
+ tc->state.ptr = xmalloc(tr->state_size);
if (tr->state_init_func) {
(tr->state_init_func)(TRANSCODING_STATE(tc)); /* xxx: check return value */
}
@@ -766,7 +769,7 @@ rb_transcoding_close(rb_transcoding *tc)
(tr->state_fini_func)(TRANSCODING_STATE(tc)); /* check return value? */
}
if (TRANSCODING_STATE_EMBED_MAX < tr->state_size)
- xfree(tc->state);
+ xfree(tc->state.ptr);
if (sizeof(tc->readbuf.ary) < tr->max_input)
xfree(tc->readbuf.ptr);
if (sizeof(tc->writebuf.ary) < tr->max_output)