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authorPietro Cerutti <gahr@FreeBSD.org>2014-07-10 13:08:51 +0000
committerPietro Cerutti <gahr@FreeBSD.org>2014-07-10 13:08:51 +0000
commit7150b86bfe2474cebd10c863c1c57f089684f8bc (patch)
tree0c4dc8a9d1f44507f1648cc9f8160425257f7eeb /sys/sys/sbuf.h
parent4472d6e1df6bdf98c5bf3f692296e6b2de5cbd55 (diff)
downloadsrc-7150b86bfe2474cebd10c863c1c57f089684f8bc.tar.gz
src-7150b86bfe2474cebd10c863c1c57f089684f8bc.zip
Implement Short/Small String Optimization in SBUF(9) and change lengths and
positions in the API from ssize_t and int to size_t. CR: D388 Approved by: des, bapt
Notes
Notes: svn path=/head/; revision=268494
Diffstat (limited to 'sys/sys/sbuf.h')
-rw-r--r--sys/sys/sbuf.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/sys/sys/sbuf.h b/sys/sys/sbuf.h
index 9816a4cd6c54..9c794c830543 100644
--- a/sys/sys/sbuf.h
+++ b/sys/sys/sbuf.h
@@ -44,8 +44,8 @@ struct sbuf {
sbuf_drain_func *s_drain_func; /* drain function */
void *s_drain_arg; /* user-supplied drain argument */
int s_error; /* current error code */
- ssize_t s_size; /* size of storage buffer */
- ssize_t s_len; /* current length of string */
+ size_t s_size; /* size of storage buffer */
+ size_t s_len; /* current length of string */
#define SBUF_FIXEDLEN 0x00000000 /* fixed length buffer (default) */
#define SBUF_AUTOEXTEND 0x00000001 /* automatically extend buffer */
#define SBUF_USRFLAGMSK 0x0000ffff /* mask of flags the user may specify */
@@ -55,6 +55,9 @@ struct sbuf {
#define SBUF_INSECTION 0x00100000 /* set by sbuf_start_section() */
int s_flags; /* flags */
ssize_t s_sect_len; /* current length of section */
+#define SBUF_STATIC_LEN 64 /* static storage buffer length */
+ char s_static_buf[SBUF_STATIC_LEN];
+ /* static storage buffer */
};
__BEGIN_DECLS
@@ -65,7 +68,7 @@ struct sbuf *sbuf_new(struct sbuf *, char *, int, int);
#define sbuf_new_auto() \
sbuf_new(NULL, NULL, 0, SBUF_AUTOEXTEND)
void sbuf_clear(struct sbuf *);
-int sbuf_setpos(struct sbuf *, ssize_t);
+int sbuf_setpos(struct sbuf *, size_t);
int sbuf_bcat(struct sbuf *, const void *, size_t);
int sbuf_bcpy(struct sbuf *, const void *, size_t);
int sbuf_cat(struct sbuf *, const char *);