MINOR: channel: make the channel be a const in all {ci,co}_get* functions
There's no point having the channel marked writable as these functions
only extract data from the channel. The code was retrieved from their
ci/co ancestors.
diff --git a/include/proto/channel.h b/include/proto/channel.h
index 51c6976..9e12b5e 100644
--- a/include/proto/channel.h
+++ b/include/proto/channel.h
@@ -48,13 +48,13 @@
int ci_putblk(struct channel *chn, const char *str, int len);
struct buffer *ci_swpbuf(struct channel *chn, struct buffer *buf);
int ci_putchr(struct channel *chn, char c);
-int ci_getline_nc(struct channel *chn, char **blk1, int *len1, char **blk2, int *len2);
-int ci_getblk_nc(struct channel *chn, char **blk1, int *len1, char **blk2, int *len2);
+int ci_getline_nc(const struct channel *chn, char **blk1, int *len1, char **blk2, int *len2);
+int ci_getblk_nc(const struct channel *chn, char **blk1, int *len1, char **blk2, int *len2);
int co_inject(struct channel *chn, const char *msg, int len);
-int co_getline(struct channel *chn, char *str, int len);
-int co_getblk(struct channel *chn, char *blk, int len, int offset);
-int co_getline_nc(struct channel *chn, char **blk1, int *len1, char **blk2, int *len2);
-int co_getblk_nc(struct channel *chn, char **blk1, int *len1, char **blk2, int *len2);
+int co_getline(const struct channel *chn, char *str, int len);
+int co_getblk(const struct channel *chn, char *blk, int len, int offset);
+int co_getline_nc(const struct channel *chn, char **blk1, int *len1, char **blk2, int *len2);
+int co_getblk_nc(const struct channel *chn, char **blk1, int *len1, char **blk2, int *len2);
/* returns a pointer to the stream the channel belongs to */
@@ -139,7 +139,7 @@
* jump-less and much more efficient on both 32 and 64-bit than
* the boolean test.
*/
-static inline unsigned int channel_is_empty(struct channel *c)
+static inline unsigned int channel_is_empty(const struct channel *c)
{
return !(c->buf->o | (long)c->pipe);
}