Allocate a new console for stdin.

[nssm.git] / README.txt

diff --git a/README.txt b/README.txt
index 830ca67..aa1fc9f 100644 (file)
--- a/README.txt
+++ b/README.txt
@@ -314,6 +314,25 @@ Rotation is independent of the CreateFile() parameters used to open the files.
 They will be rotated regardless of whether NSSM would otherwise have appended\r
 or replaced them.\r
 \r
+NSSM can also rotate files which hit the configured size threshold while the\r
+service is running.  Additionally, you can trigger an on-demand rotation by\r
+running the command\r
+\r
+    nssm rotate <servicename>\r
+\r
+On-demand rotations will happen after the next line of data is read from\r
+the managed application, regardless of the value of AppRotateBytes. Be aware\r
+that if the application is not particularly verbose the rotation may not\r
+happen for some time.\r
+\r
+To enable online and on-demand rotation, set AppRotateOnline to a non-zero\r
+value.\r
+\r
+Note that online rotation requires NSSM to intercept the application's I/O\r
+and create the output files on its behalf.  This is more complex and\r
+error-prone than simply redirecting the I/O streams before launching the\r
+application.  Therefore online rotation is not enabled by default.\r
+\r
 \r
 Environment variables\r
 ---------------------\r
@@ -328,7 +347,33 @@ environment variables which will be added to the service's environment.
 Each entry in the list should be of the form KEY=VALUE.  It is possible to\r
 omit the VALUE but the = symbol is mandatory.\r
 \r
-srvany only supports AppEnvironment.\r
+Environment variables listed in both AppEnvironment and AppEnvironmentExtra\r
+are subject to normal expansion, so it is possible, for example, to update the\r
+system path by setting "PATH=C:\bin;%PATH%" in AppEnvironmentExtra.  Variables\r
+are expanded in the order in which they appear, so if you want to include the\r
+value of one variable in another variable you should declare the dependency\r
+first.\r
+\r
+Because variables defined in AppEnvironment override the existing\r
+environment it is not possible to refer to any variables which were previously\r
+defined.\r
+\r
+For example, the following AppEnvironment block:\r
+\r
+      PATH=C:\Windows\System32;C:\Windows\r
+      PATH=C:\bin;%PATH%\r
+\r
+Would result in a PATH of "C:\bin;C:\Windows\System32;C:\Windows" as expected.\r
+\r
+Whereas the following AppEnvironment block:\r
+\r
+      PATH=C:\bin;%PATH%\r
+\r
+Would result in a path containing only C:\bin and probably cause the\r
+application to fail to start.\r
+\r
+Most people will want to use AppEnvironmentExtra exclusively.  srvany only\r
+supports AppEnvironment.\r
 \r
 \r
 Managing services using the GUI\r
@@ -495,6 +540,8 @@ NSSM offers rudimentary service control features.
 \r
     nssm start <servicename>\r
 \r
+    nssm restart <servicename>\r
+\r
     nssm stop <servicename>\r
 \r
     nssm status <servicename>\r
@@ -603,6 +650,8 @@ Thanks to Арслан Сайдуганов for suggesting setting process prior
 Thanks to Robert Middleton for suggestion and draft implementation of process\r
 affinity support.\r
 Thanks to Andrew RedzMax for suggesting an unconditional restart delay.\r
+Thanks to Bryan Senseman for noticing that applications with redirected stdout\r
+and/or stderr which attempt to read from stdin would fail.\r
 \r
 Licence\r
 -------\r