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authorRichard Levitte <levitte@openssl.org>2000-12-13 17:15:03 +0000
committerRichard Levitte <levitte@openssl.org>2000-12-13 17:15:03 +0000
commit8d28d5f81b81f68a69db1c67e24bcfc092614346 (patch)
tree3391f9ea36d1b9655ffd8e9065de14a5284c5556 /crypto/lhash
parent53b407da84909dffb54c44dc8a1106723a23a546 (diff)
Constification of the data of a hash table. This means the callback
functions need to be constified, and therefore meant a number of easy changes a little everywhere. Now, if someone could explain to me why OBJ_dup() cheats...
Diffstat (limited to 'crypto/lhash')
-rw-r--r--crypto/lhash/lhash.c24
-rw-r--r--crypto/lhash/lhash.h26
2 files changed, 25 insertions, 25 deletions
diff --git a/crypto/lhash/lhash.c b/crypto/lhash/lhash.c
index 60699f45cc..874647af6b 100644
--- a/crypto/lhash/lhash.c
+++ b/crypto/lhash/lhash.c
@@ -109,7 +109,7 @@ const char *lh_version="lhash" OPENSSL_VERSION_PTEXT;
static void expand(LHASH *lh);
static void contract(LHASH *lh);
-static LHASH_NODE **getrn(LHASH *lh, void *data, unsigned long *rhash);
+static LHASH_NODE **getrn(LHASH *lh, const void *data, unsigned long *rhash);
LHASH *lh_new(LHASH_HASH_FN_TYPE h, LHASH_COMP_FN_TYPE c)
{
@@ -176,11 +176,11 @@ void lh_free(LHASH *lh)
OPENSSL_free(lh);
}
-void *lh_insert(LHASH *lh, void *data)
+void *lh_insert(LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
- void *ret;
+ const void *ret;
lh->error=0;
if (lh->up_load <= (lh->num_items*LH_LOAD_MULT/lh->num_nodes))
@@ -211,14 +211,14 @@ void *lh_insert(LHASH *lh, void *data)
(*rn)->data=data;
lh->num_replace++;
}
- return(ret);
+ return((void *)ret);
}
-void *lh_delete(LHASH *lh, void *data)
+void *lh_delete(LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE *nn,**rn;
- void *ret;
+ const void *ret;
lh->error=0;
rn=getrn(lh,data,&hash);
@@ -242,14 +242,14 @@ void *lh_delete(LHASH *lh, void *data)
(lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))
contract(lh);
- return(ret);
+ return((void *)ret);
}
-void *lh_retrieve(LHASH *lh, void *data)
+void *lh_retrieve(LHASH *lh, const void *data)
{
unsigned long hash;
LHASH_NODE **rn;
- void *ret;
+ const void *ret;
lh->error=0;
rn=getrn(lh,data,&hash);
@@ -264,7 +264,7 @@ void *lh_retrieve(LHASH *lh, void *data)
ret= (*rn)->data;
lh->num_retrieve++;
}
- return(ret);
+ return((void *)ret);
}
void lh_doall(LHASH *lh, LHASH_DOALL_FN_TYPE func)
@@ -279,7 +279,7 @@ void lh_doall(LHASH *lh, LHASH_DOALL_FN_TYPE func)
lh_doall_arg(lh, (LHASH_DOALL_ARG_FN_TYPE)func, NULL);
}
-void lh_doall_arg(LHASH *lh, LHASH_DOALL_ARG_FN_TYPE func, void *arg)
+void lh_doall_arg(LHASH *lh, LHASH_DOALL_ARG_FN_TYPE func, const void *arg)
{
int i;
LHASH_NODE *a,*n;
@@ -395,7 +395,7 @@ static void contract(LHASH *lh)
}
}
-static LHASH_NODE **getrn(LHASH *lh, void *data, unsigned long *rhash)
+static LHASH_NODE **getrn(LHASH *lh, const void *data, unsigned long *rhash)
{
LHASH_NODE **ret,*n1;
unsigned long hash,nn;
diff --git a/crypto/lhash/lhash.h b/crypto/lhash/lhash.h
index 6420512079..3c5355885f 100644
--- a/crypto/lhash/lhash.h
+++ b/crypto/lhash/lhash.h
@@ -77,17 +77,17 @@ extern "C" {
typedef struct lhash_node_st
{
- void *data;
+ const void *data;
struct lhash_node_st *next;
#ifndef NO_HASH_COMP
unsigned long hash;
#endif
} LHASH_NODE;
-typedef int (*LHASH_COMP_FN_TYPE)(void *, void *);
-typedef unsigned long (*LHASH_HASH_FN_TYPE)(void *);
-typedef void (*LHASH_DOALL_FN_TYPE)(void *);
-typedef void (*LHASH_DOALL_ARG_FN_TYPE)(void *, void *);
+typedef int (*LHASH_COMP_FN_TYPE)(const void *, const void *);
+typedef unsigned long (*LHASH_HASH_FN_TYPE)(const void *);
+typedef void (*LHASH_DOALL_FN_TYPE)(const void *);
+typedef void (*LHASH_DOALL_ARG_FN_TYPE)(const void *, const void *);
/* Macros for declaring and implementing type-safe wrappers for LHASH callbacks.
* This way, callbacks can be provided to LHASH structures without function
@@ -98,18 +98,18 @@ typedef void (*LHASH_DOALL_ARG_FN_TYPE)(void *, void *);
/* First: "hash" functions */
#define DECLARE_LHASH_HASH_FN(f_name,o_type) \
- unsigned long f_name##_LHASH_HASH(void *);
+ unsigned long f_name##_LHASH_HASH(const void *);
#define IMPLEMENT_LHASH_HASH_FN(f_name,o_type) \
- unsigned long f_name##_LHASH_HASH(void *arg) { \
+ unsigned long f_name##_LHASH_HASH(const void *arg) { \
o_type a = (o_type)arg; \
return f_name(a); }
#define LHASH_HASH_FN(f_name) f_name##_LHASH_HASH
/* Second: "compare" functions */
#define DECLARE_LHASH_COMP_FN(f_name,o_type) \
- int f_name##_LHASH_COMP(void *, void *);
+ int f_name##_LHASH_COMP(const void *, const void *);
#define IMPLEMENT_LHASH_COMP_FN(f_name,o_type) \
- int f_name##_LHASH_COMP(void *arg1, void *arg2) { \
+ int f_name##_LHASH_COMP(const void *arg1, const void *arg2) { \
o_type a = (o_type)arg1; \
o_type b = (o_type)arg2; \
return f_name(a,b); }
@@ -153,11 +153,11 @@ typedef struct lhash_st
LHASH *lh_new(LHASH_HASH_FN_TYPE h, LHASH_COMP_FN_TYPE c);
void lh_free(LHASH *lh);
-void *lh_insert(LHASH *lh, void *data);
-void *lh_delete(LHASH *lh, void *data);
-void *lh_retrieve(LHASH *lh, void *data);
+void *lh_insert(LHASH *lh, const void *data);
+void *lh_delete(LHASH *lh, const void *data);
+void *lh_retrieve(LHASH *lh, const void *data);
void lh_doall(LHASH *lh, LHASH_DOALL_FN_TYPE func);
-void lh_doall_arg(LHASH *lh, LHASH_DOALL_ARG_FN_TYPE func, void *arg);
+void lh_doall_arg(LHASH *lh, LHASH_DOALL_ARG_FN_TYPE func, const void *arg);
unsigned long lh_strhash(const char *c);
unsigned long lh_num_items(const LHASH *lh);