From c7ed5279116db060f7c466604f98e700dba21c0a Mon Sep 17 00:00:00 2001
From: Cloud Wu <cloudwu@gmail.com>
Date: Wed, 8 Apr 2015 11:42:06 +0800
Subject: [PATCH] add const to sproto C api

---
 lualib-src/sproto/sproto.c | 16 ++++++++--------
 lualib-src/sproto/sproto.h | 12 ++++++------
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/lualib-src/sproto/sproto.c b/lualib-src/sproto/sproto.c
index ac64bcff..c37fdc1b 100644
--- a/lualib-src/sproto/sproto.c
+++ b/lualib-src/sproto/sproto.c
@@ -510,7 +510,7 @@ sproto_dump(struct sproto *s) {
 
 // query
 int
-sproto_prototag(struct sproto *sp, const char * name) {
+sproto_prototag(const struct sproto *sp, const char * name) {
 	int i;
 	for (i=0;i<sp->protocol_n;i++) {
 		if (strcmp(name, sp->proto[i].name) == 0) {
@@ -521,7 +521,7 @@ sproto_prototag(struct sproto *sp, const char * name) {
 }
 
 static struct protocol *
-query_proto(struct sproto *sp, int tag) {
+query_proto(const struct sproto *sp, int tag) {
 	int begin = 0, end = sp->protocol_n;
 	while(begin<end) {
 		int mid = (begin+end)/2;
@@ -539,7 +539,7 @@ query_proto(struct sproto *sp, int tag) {
 }
 
 struct sproto_type *
-sproto_protoquery(struct sproto *sp, int proto, int what) {
+sproto_protoquery(const struct sproto *sp, int proto, int what) {
 	struct protocol * p;
 	if (what <0 || what >1) {
 		return NULL;
@@ -552,7 +552,7 @@ sproto_protoquery(struct sproto *sp, int proto, int what) {
 }
 
 const char *
-sproto_protoname(struct sproto *sp, int proto) {
+sproto_protoname(const struct sproto *sp, int proto) {
 	struct protocol * p = query_proto(sp, proto);
 	if (p) {
 		return p->name;
@@ -561,7 +561,7 @@ sproto_protoname(struct sproto *sp, int proto) {
 }
 
 struct sproto_type *
-sproto_type(struct sproto *sp, const char * type_name) {
+sproto_type(const struct sproto *sp, const char * type_name) {
 	int i;
 	for (i=0;i<sp->type_n;i++) {
 		if (strcmp(type_name, sp->type[i].name) == 0) {
@@ -577,7 +577,7 @@ sproto_name(struct sproto_type * st) {
 }
 
 static struct field *
-findtag(struct sproto_type *st, int tag) {
+findtag(const struct sproto_type *st, int tag) {
 	int begin, end;
 	if (st->base >=0 ) {
 		tag -= st->base;
@@ -839,7 +839,7 @@ encode_array(sproto_callback cb, struct sproto_arg *args, uint8_t *data, int siz
 }
 
 int
-sproto_encode(struct sproto_type *st, void * buffer, int size, sproto_callback cb, void *ud) {
+sproto_encode(const struct sproto_type *st, void * buffer, int size, sproto_callback cb, void *ud) {
 	struct sproto_arg args;
 	uint8_t * header = buffer;
 	uint8_t * data;
@@ -1035,7 +1035,7 @@ decode_array(sproto_callback cb, struct sproto_arg *args, uint8_t * stream) {
 }
 
 int
-sproto_decode(struct sproto_type *st, const void * data, int size, sproto_callback cb, void *ud) {
+sproto_decode(const struct sproto_type *st, const void * data, int size, sproto_callback cb, void *ud) {
 	struct sproto_arg args;
 	int total = size;
 	uint8_t * stream;
diff --git a/lualib-src/sproto/sproto.h b/lualib-src/sproto/sproto.h
index 934e18f8..0a419c86 100644
--- a/lualib-src/sproto/sproto.h
+++ b/lualib-src/sproto/sproto.h
@@ -17,12 +17,12 @@ struct sproto_type;
 struct sproto * sproto_create(const void * proto, size_t sz);
 void sproto_release(struct sproto *);
 
-int sproto_prototag(struct sproto *, const char * name);
-const char * sproto_protoname(struct sproto *, int proto);
+int sproto_prototag(const struct sproto *, const char * name);
+const char * sproto_protoname(const struct sproto *, int proto);
 // SPROTO_REQUEST(0) : request, SPROTO_RESPONSE(1): response
-struct sproto_type * sproto_protoquery(struct sproto *, int proto, int what);
+struct sproto_type * sproto_protoquery(const struct sproto *, int proto, int what);
 
-struct sproto_type * sproto_type(struct sproto *, const char * type_name);
+struct sproto_type * sproto_type(const struct sproto *, const char * type_name);
 
 int sproto_pack(const void * src, int srcsz, void * buffer, int bufsz);
 int sproto_unpack(const void * src, int srcsz, void * buffer, int bufsz);
@@ -41,8 +41,8 @@ struct sproto_arg {
 
 typedef int (*sproto_callback)(const struct sproto_arg *args);
 
-int sproto_decode(struct sproto_type *, const void * data, int size, sproto_callback cb, void *ud);
-int sproto_encode(struct sproto_type *, void * buffer, int size, sproto_callback cb, void *ud);
+int sproto_decode(const struct sproto_type *, const void * data, int size, sproto_callback cb, void *ud);
+int sproto_encode(const struct sproto_type *, void * buffer, int size, sproto_callback cb, void *ud);
 
 // for debug use
 void sproto_dump(struct sproto *);