--- Coro/Coro.pm	2007/10/02 23:16:24	1.142
+++ Coro/Coro.pm	2007/12/05 11:32:58	1.161
@@ -8,15 +8,22 @@
 
  async {
     # some asynchronous thread of execution
+    print "2\n";
+    cede; # yield back to main
+    print "4\n";
  };
-
- # alternatively create an async coroutine like this:
-
- sub some_func : Coro {
-    # some more async code
- }
-
- cede;
+ print "1\n";
+ cede; # yield to coroutine
+ print "3\n";
+ cede; # and again
+
+ # use locking
+ my $lock = new Coro::Semaphore;
+ my $locked;
+
+ $lock->down;
+ $locked = 1;
+ $lock->up;
 
 =head1 DESCRIPTION
 
@@ -35,7 +42,7 @@
 In this module, coroutines are defined as "callchain + lexical variables +
 @_ + $_ + $@ + $/ + C stack), that is, a coroutine has its own callchain,
 its own set of lexicals and its own set of perls most important global
-variables.
+variables (see L<Coro::State> for more configuration).
 
 =cut
 
@@ -52,7 +59,7 @@
 our $main;    # main coroutine
 our $current; # current coroutine
 
-our $VERSION = '3.8';
+our $VERSION = '4.31';
 
 our @EXPORT = qw(async async_pool cede schedule terminate current unblock_sub);
 our %EXPORT_TAGS = (
@@ -136,7 +143,7 @@
 coroutine so the scheduler can run it.
 
 Please note that if your callback recursively invokes perl (e.g. for event
-handlers), then it must be prepared to be called recursively.
+handlers), then it must be prepared to be called recursively itself.
 
 =cut
 
@@ -189,6 +196,9 @@
 (usually unused). When the sub returns the new coroutine is automatically
 terminated.
 
+See the C<Coro::State::new> constructor for info about the coroutine
+environment in which coroutines run.
+
 Calling C<exit> in a coroutine will do the same as calling exit outside
 the coroutine. Likewise, when the coroutine dies, the program will exit,
 just as it would in the main program.
@@ -218,8 +228,12 @@
 will not work in the expected way, unless you call terminate or cancel,
 which somehow defeats the purpose of pooling.
 
-The priority will be reset to C<0> after each job, otherwise the coroutine
-will be re-used "as-is".
+The priority will be reset to C<0> after each job, tracing will be
+disabled, the description will be reset and the default output filehandle
+gets restored, so you can change alkl these. Otherwise the coroutine will
+be re-used "as-is": most notably if you change other per-coroutine global
+stuff such as C<$/> you need to revert that change, which is most simply
+done by using local as in C< local $/ >.
 
 The pool size is limited to 8 idle coroutines (this can be adjusted by
 changing $Coro::POOL_SIZE), and there can be as many non-idle coros as
@@ -250,7 +264,7 @@
          }
       };
 
-      last if $@ eq "\3terminate\2\n";
+      last if $@ eq "\3async_pool terminate\2\n";
       warn $@ if $@;
    }
 }
@@ -297,15 +311,11 @@
 ready queue and calls C<schedule>, which has the effect of giving up the
 current "timeslice" to other coroutines of the same or higher priority.
 
-Returns true if at least one coroutine switch has happened.
-
 =item Coro::cede_notself
 
 Works like cede, but is not exported by default and will cede to any
 coroutine, regardless of priority, once.
 
-Returns true if at least one coroutine switch has happened.
-
 =item terminate [arg...]
 
 Terminates the current coroutine with the given status values (see L<cancel>).
@@ -346,7 +356,8 @@
 called. To make the coroutine run you must first put it into the ready queue
 by calling the ready method.
 
-See C<async> for additional discussion.
+See C<async> and C<Coro::State::new> for additional info about the
+coroutine environment.
 
 =cut
 
@@ -394,8 +405,8 @@
 =item $coroutine->join
 
 Wait until the coroutine terminates and return any values given to the
-C<terminate> or C<cancel> functions. C<join> can be called multiple times
-from multiple coroutine.
+C<terminate> or C<cancel> functions. C<join> can be called concurrently
+from multiple coroutines.
 
 =cut
 
@@ -465,6 +476,22 @@
 This method simply sets the C<< $coroutine->{desc} >> member to the given string. You
 can modify this member directly if you wish.
 
+=item $coroutine->throw ([$scalar])
+
+If C<$throw> is specified and defined, it will be thrown as an exception
+inside the coroutine at the next convinient point in time (usually after
+it gains control at the next schedule/transfer/cede). Otherwise clears the
+exception object.
+
+The exception object will be thrown "as is" with the specified scalar in
+C<$@>, i.e. if it is a string, no line number or newline will be appended
+(unlike with C<die>).
+
+This can be used as a softer means than C<cancel> to ask a coroutine to
+end itself, although there is no guarentee that the exception will lead to
+termination, and if the exception isn't caught it might well end the whole
+program.
+
 =cut
 
 sub desc {
@@ -591,13 +618,19 @@
 
 =head1 SEE ALSO
 
-Support/Utility: L<Coro::Cont>, L<Coro::Specific>, L<Coro::State>, L<Coro::Util>.
+Lower level Configuration, Coroutine Environment: L<Coro::State>.
+
+Debugging: L<Coro::Debug>.
+
+Support/Utility: L<Coro::Specific>, L<Coro::Util>.
 
 Locking/IPC: L<Coro::Signal>, L<Coro::Channel>, L<Coro::Semaphore>, L<Coro::SemaphoreSet>, L<Coro::RWLock>.
 
-Event/IO: L<Coro::Timer>, L<Coro::Event>, L<Coro::Handle>, L<Coro::Socket>, L<Coro::Select>.
+Event/IO: L<Coro::Timer>, L<Coro::Event>, L<Coro::Handle>, L<Coro::Socket>.
+
+Compatibility: L<Coro::LWP>, L<Coro::Storable>, L<Coro::Select>.
 
-Embedding: L<Coro:MakeMaker>
+Embedding: L<Coro:MakeMaker>.
 
 =head1 AUTHOR