Merge pull request #701 from zowe/httpserver-heap-config

configure SLH size for ZSS to handle file size greater than 6mb

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 All notable changes to the ZSS package will be documented in this file.
 
+## `2.17.0`
+- Code to configure the SLH block size of the http server through 'httpRequestHeapMaxBlocks' in the yaml.(#701)
+
 ## `2.16.0`
 - Bugfix: AUX should take leap seconds into account in their log messages' timestamp (#690, #691)
 

c/zss.c

@@ -355,6 +355,27 @@ static void setPrivilegedServerName(HttpServer *server, JsonObject *mvdSettings,
 }
 #endif /* __ZOWE_OS_ZOS */
 
+static void setHttpRequestHeapMaxBlocks(HttpServer *server, ConfigManager *configmgr){
+
+  int maxBlocks = 0;
+  int getStatus = cfgGetIntC(configmgr,ZSS_CFGNAME,&maxBlocks,3,"components","zss","httpHeapMaxBlocks");
+
+  if (getStatus == ZCFG_SUCCESS){
+    if (maxBlocks > HTTP_REQUEST_HEAP_MAX_BLOCKS){
+      zowelog(NULL, LOG_COMP_ID_MVD_SERVER, ZOWE_LOG_INFO, "httpHeapMaxBlocks out of range, max value is %d\n",HTTP_REQUEST_HEAP_MAX_BLOCKS); 
+      maxBlocks = HTTP_REQUEST_HEAP_MAX_BLOCKS;
+     } else if (maxBlocks < HTTP_REQUEST_HEAP_MIN_BLOCKS){
+      zowelog(NULL, LOG_COMP_ID_MVD_SERVER, ZOWE_LOG_INFO, "httpHeapMaxBlocks out of range, min value is %d\n",HTTP_REQUEST_HEAP_MIN_BLOCKS); 
+      maxBlocks = HTTP_REQUEST_HEAP_MIN_BLOCKS;
+     }
+    zowelog(NULL, LOG_COMP_ID_MVD_SERVER, ZOWE_LOG_INFO, "httpHeapMaxBlocks should be between %d and %d\n",HTTP_REQUEST_HEAP_MIN_BLOCKS,HTTP_REQUEST_HEAP_MAX_BLOCKS);
+  } else{
+    zowelog(NULL, LOG_COMP_ID_MVD_SERVER, ZOWE_LOG_INFO, "fallback to default server settings\n");
+    maxBlocks = HTTP_REQUEST_HEAP_DEFAULT_BLOCKS;
+  }
+  server->config->httpRequestHeapMaxBlocks = (unsigned int)maxBlocks;
+}
+
 static void loadWebServerConfigV2(HttpServer *server, 
                                   ConfigManager *configmgr,
                                   hashtable *htUsers,
@@ -370,6 +391,7 @@ static void loadWebServerConfigV2(HttpServer *server,
   server->config->userTimeouts = htUsers;
   server->config->groupTimeouts = htGroups;
   server->config->defaultTimeout = defaultSessionTimeout;
+  setHttpRequestHeapMaxBlocks(server, configmgr);
   registerHttpServiceOfLastResort(server,NULL);
 #ifdef __ZOWE_OS_ZOS
   setPrivilegedServerNameV2(server, configmgr);