Added operation_timeout as a new configuration (#1685)

* Added operation_timeout as a new configuration

docs/USAGE.md

@@ -26,6 +26,7 @@
     + [skip_symlinks](#skip_symlinks)
     + [monitor_interval](#monitor_interval)
     + [min_notify_changes](#min_notify_changes)
+    + [operation_timeout](#operation_timeout)
     + [Selective sync via 'sync_list' file](#selective-sync-via-sync_list-file)
   * [Configuring the client for 'single tenant application' use](#configuring-the-client-for-single-tenant-application-use)
   * [Configuring the client to use older 'skilion' application identifier](#configuring-the-client-to-use-older-skilion-application-identifier)
@@ -351,6 +352,7 @@ See the [config](https://raw.githubusercontent.com/abraunegg/onedrive/master/con
 # sync_dir_permissions = "700"
 # sync_file_permissions = "600"
 # rate_limit = "131072"
+# operation_timeout = "3600"
 ```
 
 
@@ -510,6 +512,15 @@ min_notify_changes = "50"
 ```
 This option defines the minimum number of pending incoming changes necessary to trigger a desktop notification. This allows controlling the frequency of notifications.
 
+#### operation_timeout
+Example:
+```text
+# sync_file_permissions = "600"
+# rate_limit = "131072"
+operation_timeout = "3600"
+```
+Operation Timeout is the maximum amount of time (seconds) a file operation is allowed to take. This includes DNS resolution, connecting, data transfer, etc.
+
 #### Selective sync via 'sync_list' file
 Selective sync allows you to sync only specific files and directories.
 To enable selective sync create a file named `sync_list` in `~/.config/onedrive`.

src/config.d

@@ -132,6 +132,10 @@ final class Config
 		// - It may be desirable to see what options are being passed in to performSync() without enabling the full verbose debug logging
 		boolValues["display_sync_options"] = false;
 
+		// maximum time an operation is allowed to take
+		// This includes dns resolution, connecting, data transfer, etc.
+		longValues["operation_timeout"] = 3600;
+
 		// Determine the users home directory. 
 		// Need to avoid using ~ here as expandTilde() below does not interpret correctly when running under init.d or systemd scripts
 		// Check for HOME environment variable

src/onedrive.d

@@ -131,7 +131,7 @@ final class OneDriveApi
 		http.dataTimeout = (dur!"seconds"(600));
 		// maximum time an operation is allowed to take
 		// This includes dns resolution, connecting, data transfer, etc.
-		http.operationTimeout = (dur!"seconds"(3600));
+		http.operationTimeout = (dur!"seconds"(cfg.getValueLong("operation_timeout")));
 		
 		// Specify how many redirects should be allowed
 		http.maxRedirects(5);