From e3069103f1db73076b0ce8b645729a9744648dd7 Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph@amissah.com>
Date: Sat, 4 Aug 2018 23:53:50 -0400
Subject: nested parallelisation, output task scheduler

- default off, --pp2 to use
---
 src/sdp/output/hub.d | 77 ++++++++++++++++++++++++++--------------------------
 1 file changed, 38 insertions(+), 39 deletions(-)

(limited to 'src/sdp/output')

diff --git a/src/sdp/output/hub.d b/src/sdp/output/hub.d
index 75be424..832cda8 100644
--- a/src/sdp/output/hub.d
+++ b/src/sdp/output/hub.d
@@ -12,55 +12,54 @@ template outputHub() {
     sdp.output.source_sisupod,
     sdp.output.create_zip_file,
     sdp.output.paths_output;
+  import std.parallelism;
   void outputHub(D,I)(D doc_abstraction, I doc_matters) {
     mixin SiSUoutputRgxInit;
     mixin Msg;
     auto msg = Msg!()(doc_matters);
     static auto rgx = Rgx();
-    if (doc_matters.opt.action.verbose) {
-      writeln(doc_matters.xml.keys_seq.seg);
-    }
-    if ((doc_matters.opt.action.source)
-    || (doc_matters.opt.action.sisupod)) {
-      if (doc_matters.opt.action.source) {
-        msg.v("sisu source processing...");
+    enum outTask { sisupod, source, sqlite, sqlite_multi, epub, html_scroll, html_seg, html_stuff }
+    void Scheduled(D,I)(int sched, D doc_abstraction, I doc_matters) {
+      auto msg = Msg!()(doc_matters);
+      if (sched == outTask.sisupod) {
+        msg.v("sisu source processing... ");
+        SiSUpod!()(doc_matters);
+        msg.vv("sisu source done");
       }
-      if (doc_matters.opt.action.sisupod) {
-        msg.v("sisupod source processing...");
+      if (sched == outTask.sqlite) {
+        msg.v("sqlite processing... ");
+        SQLiteHubDiscreteBuildTablesAndPopulate!()(doc_abstraction, doc_matters);
+        msg.vv("sqlite done");
       }
-      SiSUpod!()(doc_matters);
-      if (doc_matters.opt.action.source) {
-        msg.vv("sisu source done");
+      if (sched == outTask.epub) {
+        msg.v("epub3 processing... ");
+        outputEPub3!()(doc_abstraction, doc_matters);
+        msg.vv("epub3 done");
       }
-      if (doc_matters.opt.action.sisupod) {
-        msg.v("sisupod source done");
+      if (sched == outTask.html_scroll) {
+        msg.v("html scroll processing... ");
+        outputHTML!().scroll(doc_abstraction, doc_matters);
+        msg.vv("html scroll done");
+      }
+      if (sched == outTask.html_seg) {
+        msg.v("html seg processing... ");
+        outputHTML!().seg(doc_abstraction, doc_matters);
+        msg.vv("html seg done");
+      }
+      if (sched == outTask.html_stuff) {
+        outputHTML!().css(doc_matters);
+        outputHTML!().images_cp(doc_matters);
+        msg.vv("html css & images done");
       }
     }
-    if (doc_matters.opt.action.html_seg) {
-      msg.v("html seg source processing...");
-      outputHTML!().seg(doc_abstraction, doc_matters);
-      msg.vv("html seg done");
-    }
-    if (doc_matters.opt.action.html_scroll) {
-      msg.v("html scroll source processing...");
-      outputHTML!().scroll(doc_abstraction, doc_matters);
-      msg.vv("html scroll done");
-    }
-    if (doc_matters.opt.action.html_stuff) {
-      msg.v("html copying images & css...");
-      outputHTML!().css(doc_matters);
-      outputHTML!().images_cp(doc_matters);
-      msg.vv("html css & images done");
-    }
-    if (doc_matters.opt.action.epub) {
-      msg.v("epub3 source processing...");
-      outputEPub3!()(doc_abstraction, doc_matters);
-      msg.vv("epub3 done");
-    }
-    if (doc_matters.opt.action.sqlite_discrete) {
-      msg.v("sqlite processing...");
-      SQLiteHubDiscreteBuildTablesAndPopulate!()(doc_abstraction, doc_matters);
-      msg.vv("sqlite done");
+    if (!(doc_matters.opt.action.pp2)) {
+      foreach(schedule; doc_matters.opt.action.output_task_scheduler) {
+        Scheduled!()(schedule, doc_abstraction, doc_matters);
+      }
+    } else {
+      foreach(schedule; parallel(doc_matters.opt.action.output_task_scheduler)) {
+        Scheduled!()(schedule, doc_abstraction, doc_matters);
+      }
     }
     if (doc_matters.opt.action.sqlite_insert
       || doc_matters.opt.action.sqlite_update
-- 
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