add hashing to event header lookup

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10227 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_apr.h

@@ -202,6 +202,8 @@ SWITCH_DECLARE(switch_memory_pool_t *) switch_hash_pool_get(switch_hash_t *ht);
  */
 SWITCH_DECLARE(unsigned int) switch_hashfunc_default(const char *key, switch_ssize_t *klen);
 
+SWITCH_DECLARE(unsigned int) switch_ci_hashfunc_default(const char *char_key, switch_ssize_t *klen);
+
 
  /**
  * @defgroup switch_time Time Routines

src/include/switch_event.h

@@ -67,6 +67,8 @@ SWITCH_BEGIN_EXTERN_C
 	char *name;
 	/*! the header value */
 	char *value;
+	/*! hash of the header name */
+	unsigned long hash;
 	struct switch_event_header *next;
 };
 

src/include/switch_utils.h

@@ -295,6 +295,40 @@ static inline char *switch_safe_strdup(const char *it)
 }
 
 
+static inline char *switch_lc_strdup(const char *it) 
+{
+	char *dup;
+	char *p;
+
+	if (it) {
+		dup = strdup(it);
+		for(p = dup; p && *p; p++) {
+			*p = tolower(*p);
+		}
+		return dup;
+	}
+
+	return NULL;
+}
+
+
+static inline char *switch_uc_strdup(const char *it) 
+{
+	char *dup;
+	char *p;
+
+	if (it) {
+		dup = strdup(it);
+		for(p = dup; p && *p; p++) {
+			*p = toupper(*p);
+		}
+		return dup;
+	}
+
+	return NULL;
+}
+
+
 /*!
   \brief Test if one string is inside another with extra case checking
   \param s the inner string