From 709543dec3eaa07f7d2d7da2157d1f9159bad5d8 Mon Sep 17 00:00:00 2001
From: Pixel <Pixel>
Date: Mon, 12 Nov 2001 16:11:04 +0000
Subject: Taskman

---
 lib/Handle.cc  |  2 --
 lib/ReadJob.cc | 10 ++++++----
 lib/Task.cc    | 27 ++++++++++++++++++++++++++-
 lib/TaskMan.cc | 12 +++++++++---
 4 files changed, 41 insertions(+), 10 deletions(-)

(limited to 'lib')

diff --git a/lib/Handle.cc b/lib/Handle.cc
index e5a23a3..da9870f 100644
--- a/lib/Handle.cc
+++ b/lib/Handle.cc
@@ -108,8 +108,6 @@ Handle & operator>>(Handle & h, String & s) {
     char t[BUFSIZ];
     int i = 0, r;
     
-    cerr << "Into 'Handle & >> String &'...\n";
-    
     while ((r = h.read(&(t[i]), 1)) && (i != (BUFSIZ - 1))) {
 	// Il y a souvent des \r\n dans les sockets par exemple,
 	// ou bien en lisant des fichiers au format MS-DOS. On
diff --git a/lib/ReadJob.cc b/lib/ReadJob.cc
index c2a4629..3bab150 100644
--- a/lib/ReadJob.cc
+++ b/lib/ReadJob.cc
@@ -18,17 +18,19 @@ int ReadJob::Do() {
 		*s >> buff;
 	    }
 	    catch (IOAgain e) {
-		return TASK_ON_HOLD;
+		cerr << "Suspending ReadJob to wait for reading...\n";
+		Suspend();
 	    }
-	    current = 0;
+	    cerr << "Read some bytes...\n";
 	}
 	try {
 	    *d << buff << endnl;
 	}
 	catch (IOAgain e) {
-	    current = 1;
-	    return TASK_ON_HOLD;
+	    cerr << "Suspending ReadJob to wait for writing...\n";
+	    Suspend();
 	}
+	cerr << "Wrote some bytes...\n";
 	if (buff == "") return TASK_DONE;
     }
     
diff --git a/lib/Task.cc b/lib/Task.cc
index faaeaf3..42147d3 100644
--- a/lib/Task.cc
+++ b/lib/Task.cc
@@ -2,7 +2,7 @@
 #include "Task.h"
 #include "String.h"
 
-Task::Task() : state(TASK_ON_HOLD) {}
+Task::Task() : state(TASK_ON_HOLD), suspended(false) {}
 Task::~Task() {}
 
 int Task::Do() {
@@ -15,6 +15,7 @@ int Task::Run() {
 	state = Do();
     }
     catch (TaskSwitch) {
+	Resume(1);
 	throw;
     }
     catch (GeneralException e) {
@@ -32,3 +33,27 @@ int Task::GetState() {
 String Task::GetName() {
     return "Unknow Task";
 }
+
+int Task::Suspend() throw (GeneralException) {
+    int r;
+    
+    cerr << "Suspending task " << GetName() << "...\n";
+    
+    suspended = true;
+    
+    r = setjmp(env);
+    
+    if (!r) throw TaskSwitch();
+    
+    return r;
+}
+
+void Task::Resume(int val) throw (GeneralException) {
+    if (suspended) {
+	cerr << "Resuming task " << GetName() << "...\n";
+	suspended = false;
+	longjmp(env, val);
+    } else {
+	throw GeneralException(String("Task ") + GetName() + " was not suspended.");
+    }
+}
diff --git a/lib/TaskMan.cc b/lib/TaskMan.cc
index 9efe890..f8ba303 100644
--- a/lib/TaskMan.cc
+++ b/lib/TaskMan.cc
@@ -1,10 +1,16 @@
 #include <TaskMan.h>
 
-int TaskMan::Inited = 0;
+bool TaskMan::Inited = false;
 
-TaskMan::TaskMan() { }
+TaskMan::TaskMan() throw (GeneralException) {
+    if (Inited) {
+	throw GeneralException("Another Task Manager is already running, aborting.");
+    }
+    
+    Inited = true;
+}
 
-int TaskMan::AddTask(const Task & t) {
+int TaskMan::AddTask(Task * t) {
     
 }
 
-- 
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