Use a rust DLL for logging (#36858)

By moving our logging to a DLL we see a drop in CPU/real time of 2-3 orders of magnitude. This is due to BYOND opening and closing file handles on every write, causing incredible amounts of unneeded overhead. The logging library also handles timestamps for us, further increasing performance gains.

This library will also allow for further offloading in the future, such as completely replacing file2text() and friends.

A pre-compiled DLL is bundled, but Linux users will have to compile manually. Directions can be found at the rust-g repo.

Log output is enhanced with millisecond time stamps:

[2018-04-01 15:56:23.522] blah blah blah

This includes runtimes as well, which benefit from the same timestamp improvements and no longer have hacky splitting code to add their own timestamps.

Log shutdown is handled in a dedicated proc called as late as possible, as rust-g integration expands this will be factored out into a generic native code shutdown proc.

code/modules/admin/admin_verbs.dm

@@ -38,14 +38,12 @@ GLOBAL_LIST_INIT(admin_verbs_admin, world.AVerbsAdmin())
 	/datum/admins/proc/set_admin_notice, /*announcement all clients see when joining the server.*/
 	/client/proc/admin_ghost,			/*allows us to ghost/reenter body at will*/
 	/client/proc/toggle_view_range,		/*changes how far we can see*/
-	/datum/admins/proc/view_txt_log,	/*shows the server log (world_game_log) for today*/
-	/datum/admins/proc/view_atk_log,	/*shows the server combat-log, doesn't do anything presently*/
+	/client/proc/getserverlogs,		/*for accessing server logs*/
 	/client/proc/cmd_admin_subtle_message,	/*send an message to somebody as a 'voice in their head'*/
 	/client/proc/cmd_admin_delete,		/*delete an instance/object/mob/etc*/
 	/client/proc/cmd_admin_check_contents,	/*displays the contents of an instance*/
 	/client/proc/check_antagonists,		/*shows all antags*/
 	/datum/admins/proc/access_news_network,	/*allows access of newscasters*/
-	/client/proc/getserverlog,			/*allows us to fetch server logs (world_game_log) for other days*/
 	/client/proc/jumptocoord,			/*we ghost and jump to a coordinate*/
 	/client/proc/Getmob,				/*teleports a mob to our location*/
 	/client/proc/Getkey,				/*teleports a mob with a certain ckey to our location*/
@@ -181,8 +179,6 @@ GLOBAL_LIST_INIT(admin_verbs_hideable, list(
 	/datum/admins/proc/set_admin_notice,
 	/client/proc/admin_ghost,
 	/client/proc/toggle_view_range,
-	/datum/admins/proc/view_txt_log,
-	/datum/admins/proc/view_atk_log,
 	/client/proc/cmd_admin_subtle_message,
 	/client/proc/cmd_admin_check_contents,
 	/datum/admins/proc/access_news_network,

code/modules/admin/verbs/getlogs.dm

@@ -1,9 +1,8 @@
 //This proc allows download of past server logs saved within the data/logs/ folder.
-//It works similarly to show-server-log.
-/client/proc/getserverlog()
-	set name = ".getserverlog"
-	set desc = "Fetch logfiles from data/logs"
-	set category = null
+/client/proc/getserverlogs()
+	set name = "Get Server Logs"
+	set desc = "View/retrieve logfiles."
+	set category = "Admin"
 
 	var/path = browse_files("data/logs/")
 	if(!path)
@@ -13,9 +12,7 @@
 		return
 
 	message_admins("[key_name_admin(src)] accessed file: [path]")
-	//this is copypasta because making it a proc would mean locking out adminproccalls,
-	//	and that system is buggy enough with false positives that I don't want to risk locking admins out of legit calls.
-	switch(alert("View (in game), Open (in your system's text editor), or Download file [path]?", "Log File Opening", "View", "Open", "Download"))
+	switch(alert("View (in game), Open (in your system's text editor), or Download?", path, "View", "Open", "Download"))
 		if ("View")
 			src << browse("<pre style='word-wrap: break-word;'>[html_encode(file2text(file(path)))]</pre>", list2params(list("window" = "viewfile.[path]")))
 		if ("Open")
@@ -24,52 +21,5 @@
 			src << ftp(file(path))
 		else
 			return
-	to_chat(src, "Attempting to send file, this may take a fair few minutes if the file is very large.")
-	return
-
-
-//Other log stuff put here for the sake of organisation
-
-//Shows today's server log
-/datum/admins/proc/view_txt_log()
-	set category = "Admin"
-	set name = "Show Server Log"
-	set desc = "Shows server log for this round."
-
-	if(fexists("[GLOB.world_game_log]"))
-		switch(alert("View (in game), Open (in your system's text editor), or Download file [GLOB.world_game_log]?", "Log File Opening", "View", "Open", "Download"))
-			if ("View")
-				src << browse("<pre style='word-wrap: break-word;'>[html_encode(file2text(GLOB.world_game_log))]</pre>", list2params(list("window" = "viewfile.[GLOB.world_game_log]")))
-			if ("Open")
-				src << run(GLOB.world_game_log)
-			if ("Download")
-				src << ftp(GLOB.world_game_log)
-			else
-				return
-	else
-		to_chat(src, "<font color='red'>Server log not found, try using .getserverlog.</font>")
-		return
-	SSblackbox.record_feedback("tally", "admin_verb", 1, "Show Server Log") //If you are copy-pasting this, ensure the 2nd parameter is unique to the new proc!
-	return
-
-//Shows today's attack log
-/datum/admins/proc/view_atk_log()
-	set category = "Admin"
-	set name = "Show Server Attack Log"
-	set desc = "Shows server attack log for this round."
-
-	if(fexists("[GLOB.world_attack_log]"))
-		switch(alert("View (in game), Open (in your system's text editor), or Download file [GLOB.world_attack_log]?", "Log File Opening", "View", "Open", "Download"))
-			if ("View")
-				src << browse("<pre style='word-wrap: break-word;'>[html_encode(file2text(GLOB.world_attack_log))]</pre>", list2params(list("window" = "viewfile.[GLOB.world_attack_log]")))
-			if ("Open")
-				src << run(GLOB.world_attack_log)
-			if ("Download")
-				src << ftp(GLOB.world_attack_log)
-			else
-				return
-	else
-		to_chat(src, "<font color='red'>Server attack log not found, try using .getserverlog.</font>")
-		return
-	SSblackbox.record_feedback("tally", "admin_verb", 1, "Show Server Attack log") //If you are copy-pasting this, ensure the 2nd parameter is unique to the new proc!
+	to_chat(src, "Attempting to send [path], this may take a fair few minutes if the file is very large.")
 	return