abroekhuis commented on a change in pull request #274:
URL: https://github.com/apache/celix/pull/274#discussion_r470752378



##########
File path: libs/etcdlib/src/etcd.c
##########
@@ -647,40 +666,58 @@ static size_t WriteHeaderCallback(void *contents, size_t 
size, size_t nmemb, voi
 
 
 
-static int performRequest(char* url, request_t request, void* reqData, void* 
repData) {
-       CURL *curl = NULL;
+static int performRequest(CURL **curl, pthread_mutex_t *mutex, char* url, 
request_t request, void* reqData, void* repData) {
        CURLcode res = 0;
-       curl = curl_easy_init();
-       curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
-       curl_easy_setopt(curl, CURLOPT_TIMEOUT, DEFAULT_CURL_TIMEOUT);
-       curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 
DEFAULT_CURL_CONNECT_TIMEOUT);
-       curl_easy_setopt(curl, CURLOPT_URL, url);
-       curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
-       curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
-       curl_easy_setopt(curl, CURLOPT_WRITEDATA, repData);
+       if(mutex != NULL) {
+        pthread_mutex_lock(mutex);
+    }
+       if(*curl == NULL) {
+        *curl = curl_easy_init();
+        curl_easy_setopt(*curl, CURLOPT_NOSIGNAL, 1);
+        curl_easy_setopt(*curl, CURLOPT_TIMEOUT, DEFAULT_CURL_TIMEOUT);
+        curl_easy_setopt(*curl, CURLOPT_CONNECTTIMEOUT, 
DEFAULT_CURL_CONNECT_TIMEOUT);
+        curl_easy_setopt(*curl, CURLOPT_FOLLOWLOCATION, 1L);
+        curl_easy_setopt(*curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
+        //curl_easy_setopt(*curl, CURLOPT_VERBOSE, 1L);
+    }
+
+    curl_easy_setopt(*curl, CURLOPT_URL, url);
+    curl_easy_setopt(*curl, CURLOPT_WRITEDATA, repData);
     if (((struct MemoryStruct*)repData)->header) {
-        curl_easy_setopt(curl, CURLOPT_HEADERDATA, repData);
-        curl_easy_setopt(curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+        curl_easy_setopt(*curl, CURLOPT_HEADERDATA, repData);
+        curl_easy_setopt(*curl, CURLOPT_HEADERFUNCTION, WriteHeaderCallback);
+    } else {
+        curl_easy_setopt(*curl, CURLOPT_HEADERDATA, NULL);
+        curl_easy_setopt(*curl, CURLOPT_HEADERFUNCTION, NULL);
     }
 
-       if (request == PUT) {
-               curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
-               curl_easy_setopt(curl, CURLOPT_POST, 1L);
-               curl_easy_setopt(curl, CURLOPT_POSTFIELDS, reqData);
-       } else if (request == DELETE) {
-               curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
-       } else if (request == GET) {
-               curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "GET");
-       }
+    if (request == PUT) {
+        curl_easy_setopt(*curl, CURLOPT_CUSTOMREQUEST, "PUT");
+        curl_easy_setopt(*curl, CURLOPT_POST, 1L);
+        curl_easy_setopt(*curl, CURLOPT_POSTFIELDS, reqData);
+    } else if (request == DELETE) {
+        curl_easy_setopt(*curl, CURLOPT_CUSTOMREQUEST, "DELETE");
+        curl_easy_setopt(*curl, CURLOPT_POST, 0);

Review comment:
       Just curious, are these explicitly unset since they might be retained by 
the reused handle?

##########
File path: libs/etcdlib/test/etcdlib_test.c
##########
@@ -98,6 +97,7 @@ int waitforchangetest() {
        sleep(1);
        etcdlib_set(etcdlib, "hier/ar/chi/cal", "testvalue3", 5, false);
        void *resVal = NULL;
+       printf("joining\n");

Review comment:
       Can be removed I think?




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