Added a config option that allows nix users to fork when sending mail, can drastically speed up mail sending on some boxes

Changes

@@ -6,6 +6,7 @@ Anope Version 1.8 - SVN
 05/22  A Added an internal event called when a nick is ghosted           [  #00]
 05/22  A Added an internal event called when a nick is recovered         [  #00]
 05/23  A Added old nick parameter to EVENT_CHANGE_NICK                   [  #00]
+08/13  A Added forking for mail sending on supporting operating systems  [  #00]
 04/15  F Fixed os_info to backup its database on Windows                 [  #00]
 04/15  F Fixed a potential crash in cs_clear ops when using UnrealIRCd   [#1154]
 04/16  F Fixed missing TS6SID on FJOIN in inspircd12                     [  #00]

Changes.conf

@@ -2,6 +2,13 @@ Anope Version 1.8 - SVN
 -----------------------
 ** ADDED    CONFIGURATION DIRECTIVES **
 
+# ForkForMail [OPTIONAL]
+#
+# When enabled, services will fork when sending mail, which means there is no
+# services lag from mail. This is only supported on operating systems that allow
+# the use of forking (eg, not Windows).
+#
+
 ** MODIFIED CONFIGURATION DIRECTIVES **
 
 # DefSessionLimit <limit>  [REQUIRED]

data/example.conf

@@ -701,6 +701,15 @@ MailDelay 5m
 
 #DontQuoteAddresses
 
+# ForkForMail [OPTIONAL]
+#
+# When enabled, services will fork when sending mail, which means there is no
+# services lag from mail. This is only supported on operating systems that allow
+# the use of forking (eg, not Windows).
+#
+
+#ForkForMail
+
 ###########################################################################
 #
 # NickServ configuration

include/extern.h

@@ -370,6 +370,7 @@ E char *SendFrom;
 E int   RestrictMail;
 E int   MailDelay;
 E int  DontQuoteAddresses;
+E int  ForkForMail;
 
 E int   NSDefFlags;
 E int   NSDefLanguage;

src/config.c

@@ -127,6 +127,7 @@ char *SendFrom;
 int RestrictMail;
 int MailDelay;
 int DontQuoteAddresses;
+int ForkForMail;
 
 static int NSDefNone;
 char *NSGuestNickPrefix;
@@ -429,6 +430,7 @@ Directive directives[] = {
     {"DisableRaw", {{PARAM_SET, PARAM_RELOAD, &DisableRaw}}},
     {"DontQuoteAddresses",
      {{PARAM_SET, PARAM_RELOAD, &DontQuoteAddresses}}},
+    {"ForkForMail", {{PARAM_SET, PARAM_RELOAD, &ForkForMail}}},
     {"DumpCore", {{PARAM_SET, 0, &DumpCore}}},
     {"DefConLevel", {{PARAM_INT, PARAM_RELOAD, &DefConLevel}}},
     {"DefCon1", {{PARAM_INT, PARAM_RELOAD, &DefCon1}}},

src/mail.c

@@ -175,6 +175,7 @@ MailInfo *MailMemoBegin(NickCore * nc)
  */
 void MailEnd(MailInfo * mail)
 {
+   int pid = -1;
     /*  - param checking modified because we don't
        have an user sending this mail.
        Certus, 02.04.2004 */
@@ -187,7 +188,15 @@ void MailEnd(MailInfo * mail)
         return;
     }
 
-    pclose(mail->pipe);
+#ifdef HAVE_FORK
+    if (ForkForMail && !(pid = fork()))
+    {
+        pclose(mail->pipe);
+        exit(EXIT_SUCCESS);
+    }
+    else if (pid < 0)
+#endif
+        pclose(mail->pipe);
 
     if (mail->sender)           /* added sender check */
         mail->sender->lastmail = time(NULL);

version.log

@@ -8,13 +8,12 @@ VERSION_MAJOR="1"
 VERSION_MINOR="8"
 VERSION_PATCH="4"
 VERSION_EXTRA="-git"
-VERSION_BUILD="3023"
+VERSION_BUILD="3025"
 
 # $Log$ # Changes since the 1.8.4 Release
-#Revision 3023 - Fixed minor wording error, and bumped version log from last 
-commit
-#Revision 3022 - Removed \'s that appeared in kick message when BSGentleBWReason 
-isn't used
+#Revision 3025 - Added in mail forking for operating systems that support it
+#Revision 3023 - Fixed minor wording error, and bumped version log from last commit
+#Revision 3022 - Removed \'s that appeared in kick message when BSGentleBWReason isn't used
 #Revision 3021 - Removed Example.confs DefSessionLimit's reference to accepting 0, it doesn't.
 #Revision 3020 - Fixed bug #1180 - Fixed tracking of internal clients when they change nicks on TS6 IRCds
 #Revision 3019 - Properly track users hosts when a user is -x and has a vhost via chghost