Add function to free an allocated context

hiredis.c

@@ -586,6 +586,17 @@ static redisContext *redisContextInit(redisReplyFunctions *fn) {
     return c;
 }
 
+void redisFree(redisContext *c) {
+    if (c->error != NULL)
+        sdsfree(c->error);
+    if (c->obuf != NULL)
+        sdsfree(c->obuf);
+    if (c->clen > 0)
+        free(c->callbacks);
+    redisReplyReaderFree(c->reader);
+    free(c);
+}
+
 /* Connect to a Redis instance. On error the field error in the returned
  * context will be set to the return value of the error function.
  * When no set of reply functions is given, the default set will be used. */

hiredis.h

@@ -103,6 +103,7 @@ int redisReplyReaderGetReply(void *reader, void **reply);
 
 redisContext *redisConnect(const char *ip, int port, redisReplyFunctions *fn);
 redisContext *redisConnectNonBlock(const char *ip, int port, redisReplyFunctions *fn);
+void redisFree(redisContext *c);
 int redisBufferRead(redisContext *c);
 int redisBufferWrite(redisContext *c, int *done);
 int redisGetReply(redisContext *c, void **reply);

test.c

@@ -28,16 +28,17 @@ int main(void) {
     int i, ret, tests = 0, fails = 0;
     long long t1, t2;
     redisContext *c;
-    redisReply *reply;
+    redisReply *reply, **replies;
     void *reader;
     char *err;
-    __connect(&c);
 
+    __connect(&c);
     test("Returns I/O error when the connection is lost: ");
     test_cond(redisCommand(c,"QUIT") == NULL &&
         strcmp(c->error,"Server closed the connection") == 0);
-    __connect(&c); /* reconnect */
+    redisFree(c);
 
+    __connect(&c); /* reconnect */
     test("Is able to deliver commands: ");
     reply = redisCommand(c,"PING");
     test_cond(reply->type == REDIS_REPLY_STRING &&
@@ -170,5 +171,6 @@ int main(void) {
         printf("*** %d TESTS FAILED ***\n", fails);
     }
 
+    redisFree(c);
     return 0;
 }