The R13B03 release.OTP_R13B03

1 files changed, 75 insertions, 0 deletions

diff --git a/erts/etc/win32/port_entry.c b/erts/etc/win32/port_entry.c
new file mode 100644
index 0000000000..49b5ad2f34
--- /dev/null
+++ b/erts/etc/win32/port_entry.c
@@ -0,0 +1,75 @@
+/*
+ * %CopyrightBegin%
+ * 
+ * Copyright Ericsson AB 1998-2009. All Rights Reserved.
+ * 
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ * 
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * %CopyrightEnd%
+ */
+/* 
+** This is an entry point for port programs,
+** it is used to set the console control handler of the process when
+** erlang process is run as a service.
+** Note that this entry point is only for 
+** Console programs, Windowing programs can just route the WM_QUERYENDSESSION
+** and WM_ENDSESSION to the default window procedure to aquire the same 
+** functionality.
+**
+** Creator Patrik Nyblom
+**
+** Notes:
+** You would really not want to use ANY of the standard library in this 
+** routine, the standard library is not yet initiated...
+*/
+#include <windows.h>
+
+/* 
+** The runtime libraries startup routine in the Microsoft Visual C CRT
+*/
+extern void mainCRTStartup(void);
+
+/* 
+** A Console control handler that ignores the logoff events,
+** and lets the default handler take care of other events.
+*/   
+BOOL WINAPI erl_port_default_handler(DWORD ctrl){
+    if(ctrl == CTRL_LOGOFF_EVENT)
+	return TRUE;
+    return FALSE;
+}
+
+/*
+** This is the entry point, it takes no parameters and never returns.
+*/
+void erl_port_entry(void){
+    char buffer[2];
+    /* 
+     * We assume we're running as a service if this environment variable
+     * is defined
+     */
+    if(GetEnvironmentVariable("ERLSRV_SERVICE_NAME",buffer,(DWORD) 2)){
+#ifdef HARDDEBUG
+	DWORD dummy;
+	WriteFile(GetStdHandle(STD_OUTPUT_HANDLE),
+		  "Setting handler\r\n",17,&dummy, NULL);
+#endif /* HARDDEBUG */ 
+	/*
+	** Actually set the control handler
+	*/
+	SetConsoleCtrlHandler(&erl_port_default_handler, TRUE);
+    }
+    /* 
+    ** Call the CRT's real startup routine.
+    */
+    mainCRTStartup();
+}