assorted-commits

[Assorted-commits] SF.net SVN: assorted: [702] configs/trunk/src/contestapplet.conf

[<yan...@us...>]

Revision: 702
          http://assorted.svn.sourceforge.net/assorted/?rev=702&view=rev
Author:   yangzhang
Date:     2008-05-04 10:46:02 -0700 (Sun, 04 May 2008)

Log Message:
-----------
fixed indentation

Modified Paths:
--------------
    configs/trunk/src/contestapplet.conf

Modified: configs/trunk/src/contestapplet.conf
===================================================================
--- configs/trunk/src/contestapplet.conf	2008-05-04 17:45:26 UTC (rev 701)
+++ configs/trunk/src/contestapplet.conf	2008-05-04 17:46:02 UTC (rev 702)
@@ -1,4 +1,4 @@
-// vim:noet:sw=2:ts=2
+// vim:et:sw=2:ts=2
 
 // TODO
 // - strip out all comments


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[Assorted-commits] SF.net SVN: assorted: [701] configs/trunk/README

[<yan...@us...>]

Revision: 701
          http://assorted.svn.sourceforge.net/assorted/?rev=701&view=rev
Author:   yangzhang
Date:     2008-05-04 10:45:26 -0700 (Sun, 04 May 2008)

Log Message:
-----------
added some more to the readme

Modified Paths:
--------------
    configs/trunk/README

Modified: configs/trunk/README
===================================================================
--- configs/trunk/README	2008-05-04 17:44:31 UTC (rev 700)
+++ configs/trunk/README	2008-05-04 17:45:26 UTC (rev 701)
@@ -24,3 +24,17 @@
 ~`. These are separate because I too often need custom bash/emacs/vim
 configurations (refer to the default.* files to see how to source the globally
 installed configurations).
+
+To set up the author's topcoder environment, run `src/topcoder/setup.bash`.
+
+Features
+--------
+
+=== Vim ===
+
+- search parent directories for project-wide settings
+
+=== screen ===
+
+- sensible control key (ctrl-\)
+- informative status string


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[Assorted-commits] SF.net SVN: assorted: [700] configs/trunk

[<yan...@us...>]

Revision: 700
          http://assorted.svn.sourceforge.net/assorted/?rev=700&view=rev
Author:   yangzhang
Date:     2008-05-04 10:44:31 -0700 (Sun, 04 May 2008)

Log Message:
-----------
added signature

Modified Paths:
--------------
    configs/trunk/setup-yang.bash

Added Paths:
-----------
    configs/trunk/src/signature

Modified: configs/trunk/setup-yang.bash
===================================================================
--- configs/trunk/setup-yang.bash	2008-05-04 07:51:01 UTC (rev 699)
+++ configs/trunk/setup-yang.bash	2008-05-04 17:44:31 UTC (rev 700)
@@ -19,4 +19,5 @@
 install .Xdefaults Xdefaults
 install .synergy.conf synergy.conf
 install .unison unison
+install .signature signature
 # TODO figure out a place to put the .profile

Added: configs/trunk/src/signature
===================================================================
--- configs/trunk/src/signature	                        (rev 0)
+++ configs/trunk/src/signature	2008-05-04 17:44:31 UTC (rev 700)
@@ -0,0 +1,2 @@
+Yang Zhang
+http://www.mit.edu/~y_z/


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[Assorted-commits] SF.net SVN: assorted: [699] sandbox/trunk/src/c/vaargs.c

[<yan...@us...>]

Revision: 699
          http://assorted.svn.sourceforge.net/assorted/?rev=699&view=rev
Author:   yangzhang
Date:     2008-05-04 00:51:01 -0700 (Sun, 04 May 2008)

Log Message:
-----------
added clarifying note

Modified Paths:
--------------
    sandbox/trunk/src/c/vaargs.c

Modified: sandbox/trunk/src/c/vaargs.c
===================================================================
--- sandbox/trunk/src/c/vaargs.c	2008-05-04 07:50:13 UTC (rev 698)
+++ sandbox/trunk/src/c/vaargs.c	2008-05-04 07:51:01 UTC (rev 699)
@@ -38,6 +38,8 @@
 // This is how you pass a suffix of the va_list to a another function.  Here we
 // have h passing everything but garbage on to g. This requires h to extract
 // out the first argument and pass that as a normal arg.
+// XXX: although this seems to work on Linux, check that this is the right
+// (portable) way to do this.
 void
 h(int garbage, ...)
 {


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[Assorted-commits] SF.net SVN: assorted: [698] sandbox/trunk/src/c/blocks.c

[<yan...@us...>]

Revision: 698
          http://assorted.svn.sourceforge.net/assorted/?rev=698&view=rev
Author:   yangzhang
Date:     2008-05-04 00:50:13 -0700 (Sun, 04 May 2008)

Log Message:
-----------
polishing blocks.c

Modified Paths:
--------------
    sandbox/trunk/src/c/blocks.c

Modified: sandbox/trunk/src/c/blocks.c
===================================================================
--- sandbox/trunk/src/c/blocks.c	2008-05-04 07:27:22 UTC (rev 697)
+++ sandbox/trunk/src/c/blocks.c	2008-05-04 07:50:13 UTC (rev 698)
@@ -6,17 +6,39 @@
 enum { blk = 10 };
 enum { datlen = 2 * blk };
 
+/**
+ * Calculate the number of blocks in a segment of length \a i.
+ * Mathematically, this is \code ceil(i / blk) \endcode.
+ * Equivalent to \code (i - 1) / blk + 1 \endcode, but without the
+ * arithmetic underflow.
+ *
+ * E.g., with a block size of 10:
+ *
+ * \code
+ * nblocks( 0) == 0 &&
+ * nblocks( 1) == 1 && nblocks(10) == 1 &&
+ * nblocks(11) == 2 && ...
+ * \endcode
+ */
+inline uint32_t
+nblocks(uint32_t i)
+{
+  return (i + blk - 1) / blk;
+}
+
 void
 f(uint32_t off, uint32_t len)
 {
   uint32_t end = off + len;
-  uint32_t fstblk = off / blk, lstblk = (end + blk - 1) / blk;
-  printf("f(off %4d, len %4d), fstblk %2d, lstblk %2d\n", off, len, fstblk, lstblk);
+  uint32_t fstblk = off / blk, lstblk = nblocks(end);
+  printf("f(off %4d, len %4d), fstblk %2d, lstblk %2d\n",
+         off, len, fstblk, lstblk);
   char *p = 0;
   for (uint32_t i = fstblk; i < lstblk; i++) {
     uint32_t blkoff = i == fstblk ? off % blk : 0;
     uint32_t blklen = min(end - i * blk, blk) - blkoff;
-    printf("  i %2d | blkoff %4d | blklen %4d | p %04p\n", i, blkoff, blklen, p);
+    printf("  i %2d | blkoff %4d | blklen %4d | p %04p\n",
+           i, blkoff, blklen, p);
     p += blklen;
   }
   printf("\n");


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[Assorted-commits] SF.net SVN: assorted: [697] sandbox/trunk/src/c/subprocs.c

[<yan...@us...>]

Revision: 697
          http://assorted.svn.sourceforge.net/assorted/?rev=697&view=rev
Author:   yangzhang
Date:     2008-05-04 00:27:22 -0700 (Sun, 04 May 2008)

Log Message:
-----------
added subprocess

Added Paths:
-----------
    sandbox/trunk/src/c/subprocs.c

Added: sandbox/trunk/src/c/subprocs.c
===================================================================
--- sandbox/trunk/src/c/subprocs.c	                        (rev 0)
+++ sandbox/trunk/src/c/subprocs.c	2008-05-04 07:27:22 UTC (rev 697)
@@ -0,0 +1,14 @@
+// Performing ctrl-c from the shell actually sends a sigint to the entire
+// process group, i.e. the top process plus any subprocesses.  You can get the
+// same effect by running this command as a background shell job and killing
+// the job with `kill %%` or `kill %+`.
+
+#include <unistd.h>
+
+int
+main()
+{
+  pid_t pid = fork();
+  sleep(30);
+  return 0;
+}


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[Assorted-commits] SF.net SVN: assorted: [696] sandbox/trunk/src/cc

[<yan...@us...>]

Revision: 696
          http://assorted.svn.sourceforge.net/assorted/?rev=696&view=rev
Author:   yangzhang
Date:     2008-05-01 20:13:14 -0700 (Thu, 01 May 2008)

Log Message:
-----------
added basic tamer demo

Added Paths:
-----------
    sandbox/trunk/src/cc/tamer/
    sandbox/trunk/src/cc/tamer/basics.tt

Added: sandbox/trunk/src/cc/tamer/basics.tt
===================================================================
--- sandbox/trunk/src/cc/tamer/basics.tt	                        (rev 0)
+++ sandbox/trunk/src/cc/tamer/basics.tt	2008-05-02 03:13:14 UTC (rev 696)
@@ -0,0 +1,42 @@
+#include <iostream>
+#include <boost/scoped_array.hpp>
+#include <commons/check.h>
+#include <commons/die.h>
+#include <tamer/tamer.hh>
+#include <tamer/fd.hh>
+#include <tamer/bufferedio.hh>
+
+using namespace std;
+using namespace boost;
+using namespace commons;
+using namespace tamer;
+using namespace tamer::fdx;
+
+const int port = 8989;
+
+class C
+{
+  tamed void f() { return 0; }
+};
+
+tamed void
+go()
+{
+  tvars { fd listener, conn; }
+  twait { tcp_listen(port, make_event(listener)); }
+  checkdie(listener, "listen");
+  while (1) {
+    twait { listener.accept(0, 0, make_event(conn)); }
+    checkdie(conn, "accept");
+    cout << "handling" << endl;
+  }
+}
+
+int
+main()
+{
+  initialize();
+  go();
+  loop();
+  return 0;
+}


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[Assorted-commits] SF.net SVN: assorted: [695] sandbox/trunk/src/cc

[<yan...@us...>]

Revision: 695
          http://assorted.svn.sourceforge.net/assorted/?rev=695&view=rev
Author:   yangzhang
Date:     2008-05-01 20:12:51 -0700 (Thu, 01 May 2008)

Log Message:
-----------
added basic st demo

Added Paths:
-----------
    sandbox/trunk/src/cc/st/
    sandbox/trunk/src/cc/st/basics.cc

Added: sandbox/trunk/src/cc/st/basics.cc
===================================================================
--- sandbox/trunk/src/cc/st/basics.cc	                        (rev 0)
+++ sandbox/trunk/src/cc/st/basics.cc	2008-05-02 03:12:51 UTC (rev 695)
@@ -0,0 +1,42 @@
+#include <cstdio>
+#include <iostream>
+
+#include <commons/check.h>
+#include <commons/closing.h>
+#include <commons/sockets.h>
+#include <commons/st/st.h>
+
+using namespace std;
+using namespace commons;
+
+void*
+f(void *p)
+{
+  stfd s = tcp_connect("www.google.com", 80);
+  return NULL;
+}
+
+void*
+g(void *p)
+{
+  st_thread_t t = (st_thread_t) p;
+  st_sleep(1);
+  printf("interrupting!\n");
+  st_thread_interrupt(t);
+  printf("interrupted!\n");
+  st_sleep(1);
+  printf("waited\n");
+  return NULL;
+}
+
+int
+main()
+{
+  check0(st_init());
+  st_thread_t t1 = checkpass(st_thread_create(&f, (void*)"abc", 0, 0));
+  checkpass(st_thread_create(&f, (void*)"abc", 0, 0));
+  checkpass(st_thread_create(&g, (void*)t1, 0, 0));
+  //check0(st_thread_join(t, NULL));
+  st_thread_exit(NULL);
+  return 1;
+}


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[Assorted-commits] SF.net SVN: assorted: [694] python-commons/tags/0.3/

[<yan...@us...>]

Revision: 694
          http://assorted.svn.sourceforge.net/assorted/?rev=694&view=rev
Author:   yangzhang
Date:     2008-04-30 14:33:37 -0700 (Wed, 30 Apr 2008)

Log Message:
-----------
python commons 0.3 release

Added Paths:
-----------
    python-commons/tags/0.3/

Copied: python-commons/tags/0.3 (from rev 692, python-commons/trunk)


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[Assorted-commits] SF.net SVN: assorted: [693] python-commons/trunk

[<yan...@us...>]

Revision: 693
          http://assorted.svn.sourceforge.net/assorted/?rev=693&view=rev
Author:   yangzhang
Date:     2008-04-30 10:42:00 -0700 (Wed, 30 Apr 2008)

Log Message:
-----------
removed extraneous prints, minor upgrade release

Modified Paths:
--------------
    python-commons/trunk/publish.bash
    python-commons/trunk/setup.py
    python-commons/trunk/src/commons/files.py

Modified: python-commons/trunk/publish.bash
===================================================================
--- python-commons/trunk/publish.bash	2008-04-30 07:06:19 UTC (rev 692)
+++ python-commons/trunk/publish.bash	2008-04-30 17:42:00 UTC (rev 693)
@@ -5,7 +5,7 @@
 }
 
 fullname='Python Commons'
-version=0.3
+version=0.3.1
 license=psf
 websrcs=( README )
 rels=( pypi: )

Modified: python-commons/trunk/setup.py
===================================================================
--- python-commons/trunk/setup.py	2008-04-30 07:06:19 UTC (rev 692)
+++ python-commons/trunk/setup.py	2008-04-30 17:42:00 UTC (rev 693)
@@ -9,7 +9,7 @@
 pkg_info_text = """
 Metadata-Version: 1.1
 Name: python-commons
-Version: 0.3
+Version: 0.3.1
 Author: Yang Zhang
 Author-email: yaaang NOSPAM at REMOVECAPS gmail
 Home-page: http://assorted.sourceforge.net/python-commons

Modified: python-commons/trunk/src/commons/files.py
===================================================================
--- python-commons/trunk/src/commons/files.py	2008-04-30 07:06:19 UTC (rev 692)
+++ python-commons/trunk/src/commons/files.py	2008-04-30 17:42:00 UTC (rev 693)
@@ -135,7 +135,6 @@
         with file( path ) as f: cache_version = load(f)
     except IOError, (errno, errstr):
         if errno != 2: raise
-    print cache_version, fresh_version
     if cache_version is None or fresh_version > cache_version:
         with file( path, 'w' ) as f: dump(fresh_version, f)
         return True
@@ -164,11 +163,9 @@
     """
     if versioned_guard( version_path, fresh_version ):
         # cache obsolete, force-fetch new data
-        print 'here'
         result = cache_func()
         with file(cache_path, 'w') as f: dump(result, f)
         return result
     else:
         # cache up-to-date (should be available since dlcs-timestamp exists!)
-        print 'there'
         with file(cache_path) as f: return load(f)


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[Assorted-commits] SF.net SVN: assorted: [692] python-commons/trunk/setup.py

[<yan...@us...>]

Revision: 692
          http://assorted.svn.sourceforge.net/assorted/?rev=692&view=rev
Author:   yangzhang
Date:     2008-04-30 00:06:19 -0700 (Wed, 30 Apr 2008)

Log Message:
-----------
new version!

Modified Paths:
--------------
    python-commons/trunk/setup.py

Modified: python-commons/trunk/setup.py
===================================================================
--- python-commons/trunk/setup.py	2008-04-30 07:05:01 UTC (rev 691)
+++ python-commons/trunk/setup.py	2008-04-30 07:06:19 UTC (rev 692)
@@ -9,7 +9,7 @@
 pkg_info_text = """
 Metadata-Version: 1.1
 Name: python-commons
-Version: 0.2
+Version: 0.3
 Author: Yang Zhang
 Author-email: yaaang NOSPAM at REMOVECAPS gmail
 Home-page: http://assorted.sourceforge.net/python-commons


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[Assorted-commits] SF.net SVN: assorted: [691] python-commons/trunk/publish.bash

[<yan...@us...>]

Revision: 691
          http://assorted.svn.sourceforge.net/assorted/?rev=691&view=rev
Author:   yangzhang
Date:     2008-04-30 00:05:01 -0700 (Wed, 30 Apr 2008)

Log Message:
-----------
new version!

Modified Paths:
--------------
    python-commons/trunk/publish.bash

Modified: python-commons/trunk/publish.bash
===================================================================
--- python-commons/trunk/publish.bash	2008-04-29 23:03:05 UTC (rev 690)
+++ python-commons/trunk/publish.bash	2008-04-30 07:05:01 UTC (rev 691)
@@ -5,7 +5,7 @@
 }
 
 fullname='Python Commons'
-version=0.2
+version=0.3
 license=psf
 websrcs=( README )
 rels=( pypi: )


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[Assorted-commits] SF.net SVN: assorted: [690] python-commons/trunk/src/commons/files.py

[<yan...@us...>]

Revision: 690
          http://assorted.svn.sourceforge.net/assorted/?rev=690&view=rev
Author:   yangzhang
Date:     2008-04-29 16:03:05 -0700 (Tue, 29 Apr 2008)

Log Message:
-----------
fixed bug in versioned_guard; clarified docstring on versioned_cache

Modified Paths:
--------------
    python-commons/trunk/src/commons/files.py

Modified: python-commons/trunk/src/commons/files.py
===================================================================
--- python-commons/trunk/src/commons/files.py	2008-04-29 23:00:50 UTC (rev 689)
+++ python-commons/trunk/src/commons/files.py	2008-04-29 23:03:05 UTC (rev 690)
@@ -130,23 +130,26 @@
     version or doesn't exist).
     @rtype: bool
     """
+    cache_version = None
     try:
         with file( path ) as f: cache_version = load(f)
     except IOError, (errno, errstr):
         if errno != 2: raise
+    print cache_version, fresh_version
+    if cache_version is None or fresh_version > cache_version:
+        with file( path, 'w' ) as f: dump(fresh_version, f)
         return True
     else:
-        if fresh_version > cache_version:
-            with file( path, 'w' ) as f: dump(fresh_version, f)
-            return True
-        else:
-            return False
+        return False
 
 def versioned_cache(version_path, fresh_version, cache_path, cache_func):
     """
     If fresh_version is newer than the version in version_path, then invoke
     cache_func and cache the result in cache_path (using pickle).
 
+    Note the design flaw with L{versioned_guard}: the updated version value is
+    stored immediately, rather than after updating the cache.
+
     @param version_path: The path to the file version.
     @type version_path: str
 


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[Assorted-commits] SF.net SVN: assorted: [689] python-commons/trunk/src/commons/networking.py

[<yan...@us...>]

Revision: 689
          http://assorted.svn.sourceforge.net/assorted/?rev=689&view=rev
Author:   yangzhang
Date:     2008-04-29 16:00:50 -0700 (Tue, 29 Apr 2008)

Log Message:
-----------
added retry_exp_backoff()

Modified Paths:
--------------
    python-commons/trunk/src/commons/networking.py

Modified: python-commons/trunk/src/commons/networking.py
===================================================================
--- python-commons/trunk/src/commons/networking.py	2008-04-29 05:18:57 UTC (rev 688)
+++ python-commons/trunk/src/commons/networking.py	2008-04-29 23:00:50 UTC (rev 689)
@@ -6,6 +6,7 @@
 """
 
 import os, sys
+from time import *
 
 class NoMacAddrError( Exception ): pass
 
@@ -37,3 +38,28 @@
         raise NoMacAddrError
     return mac
 
+def retry_exp_backoff(initial_backoff, multiplier, func):
+    """
+    Repeatedly invoke L{func} until it succeeds (returns non-None), with
+    exponentially growing backoff delay between each try.
+
+    @param initial_backoff: The initial backoff.
+    @type initial_backoff: float
+
+    @param multiplier: The amount by which the backoff is multiplied on each
+    failure.
+    @type multiplier: float
+
+    @param func: The zero-argument function to be invoked that returns True on
+    success and False on failure.
+    @type func: function
+
+    @return: The result of the function
+    """
+    backoff = initial_backoff
+    while True:
+        res = func()
+        if res is not None: return res
+        print 'backing off for', backoff
+        sleep(backoff)
+        backoff = multiplier * backoff


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[Assorted-commits] SF.net SVN: assorted: [688] python-commons/trunk/src/commons/files.py

[<yan...@us...>]

Revision: 688
          http://assorted.svn.sourceforge.net/assorted/?rev=688&view=rev
Author:   yangzhang
Date:     2008-04-28 22:18:57 -0700 (Mon, 28 Apr 2008)

Log Message:
-----------
added versioned_guard, versioned_cache

Modified Paths:
--------------
    python-commons/trunk/src/commons/files.py

Modified: python-commons/trunk/src/commons/files.py
===================================================================
--- python-commons/trunk/src/commons/files.py	2008-04-29 00:32:42 UTC (rev 687)
+++ python-commons/trunk/src/commons/files.py	2008-04-29 05:18:57 UTC (rev 688)
@@ -14,7 +14,7 @@
 from __future__ import with_statement
 
 import os, re, tempfile
-
+from cPickle import *
 from path import path
 
 def soft_makedirs( path ):
@@ -113,3 +113,59 @@
     def close( self ):
         self.reader.close()
         self.writer.close()
+
+def versioned_guard(path, fresh_version):
+    """
+    Maintain a version object.  This is useful for working with versioned
+    caches.
+
+    @param path: The path to the file containing the cached version object.
+    @type path: str
+
+    @param fresh_version: The actual latest version that the cached version
+    should be compared against.
+    @type fresh_version: object (any type that can be compared)
+
+    @return: True iff the cached version is obsolete (less than the fresh
+    version or doesn't exist).
+    @rtype: bool
+    """
+    try:
+        with file( path ) as f: cache_version = load(f)
+    except IOError, (errno, errstr):
+        if errno != 2: raise
+        return True
+    else:
+        if fresh_version > cache_version:
+            with file( path, 'w' ) as f: dump(fresh_version, f)
+            return True
+        else:
+            return False
+
+def versioned_cache(version_path, fresh_version, cache_path, cache_func):
+    """
+    If fresh_version is newer than the version in version_path, then invoke
+    cache_func and cache the result in cache_path (using pickle).
+
+    @param version_path: The path to the file version.
+    @type version_path: str
+
+    @param fresh_version: The actual, up-to-date version value.
+    @type fresh_version: object (any type that can be compared)
+
+    @param cache_path: The path to the cached data.
+    @type cache_path: str
+
+    @param cache_func: The function that produces the fresh data to be cached.
+    @type cache_func: function (no arguments)
+    """
+    if versioned_guard( version_path, fresh_version ):
+        # cache obsolete, force-fetch new data
+        print 'here'
+        result = cache_func()
+        with file(cache_path, 'w') as f: dump(result, f)
+        return result
+    else:
+        # cache up-to-date (should be available since dlcs-timestamp exists!)
+        print 'there'
+        with file(cache_path) as f: return load(f)


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[Assorted-commits] SF.net SVN: assorted: [687] python-commons/trunk/src/commons/decs.py

[<yan...@us...>]

Revision: 687
          http://assorted.svn.sourceforge.net/assorted/?rev=687&view=rev
Author:   yangzhang
Date:     2008-04-28 17:32:42 -0700 (Mon, 28 Apr 2008)

Log Message:
-----------
added file_memoized, file_string_memoized, pickle_memoized

Modified Paths:
--------------
    python-commons/trunk/src/commons/decs.py

Modified: python-commons/trunk/src/commons/decs.py
===================================================================
--- python-commons/trunk/src/commons/decs.py	2008-04-29 00:31:41 UTC (rev 686)
+++ python-commons/trunk/src/commons/decs.py	2008-04-29 00:32:42 UTC (rev 687)
@@ -7,7 +7,9 @@
 @todo: Move the actual decorators to modules based on their topic.
 """
 
+from __future__ import with_statement
 import functools, inspect, xmlrpclib
+from cPickle import *
 
 def wrap_callable(any_callable, before, after):
     """
@@ -90,3 +92,65 @@
         else:
             return 0
     return wrapper
+
+##########################################################
+
+def file_memoized(serializer, deserializer, pathfunc):
+    """
+    The string result of the given function is saved to the given path.
+
+    Example::
+
+        @file_memoized(lambda x,f: f.write(x),
+                       lambda f: f.read(),
+                       lambda: "/tmp/cache")
+        def foo(): return "hello"
+
+        @file_memoized(pickle.dump,
+                       pickle.load,
+                       lambda x,y: "/tmp/cache-%d-%d" % (x,y))
+        def foo(x,y): return "hello %d %d" % (x,y)
+
+    @param serializer: The function to serialize the return value into a
+                       string.  This should take the return value object and
+                       the file object.
+    @type serializer: function
+
+    @param deserializer: The function te deserialize the cache file contents
+                         into the return value.  This should take the file
+                         object and return a string.
+    type: deserializer: function
+
+    @param pathfunc: Returns the path where the files should be saved.  This
+                     should be able to take the same arguments as the original
+                     function.
+    @type pathfunc: str
+    """
+    def dec(func):
+        @functools.wraps(func)
+        def wrapper(*args, **kwargs):
+            p = pathfunc(*args, **kwargs)
+            try:
+                with file(p) as f:
+                    return deserializer(f)
+            except IOError, (errno, errstr):
+                if errno != 2: raise
+                with file(p, 'w') as f:
+                    x = func(*args, **kwargs)
+                    serializer(x, f)
+                    return x
+        return wrapper
+    return dec
+
+def file_string_memoized(pathfunc):
+    """
+    Wrapper around L{file_memoized} that expects the decorated function to
+    return strings, so the string is written verbatim.
+    """
+    return file_memoized(lambda x,f: f.write(x), lambda f: f.read(), pathfunc)
+
+def pickle_memoized(pathfunc):
+    """
+    Wrapper around L{file_memoized} that uses pickle.
+    """
+    return file_memoized(dump, load, pathfunc)


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[Assorted-commits] SF.net SVN: assorted: [686] python-commons/trunk/src/commons/seqs.py

[<yan...@us...>]

Revision: 686
          http://assorted.svn.sourceforge.net/assorted/?rev=686&view=rev
Author:   yangzhang
Date:     2008-04-28 17:31:41 -0700 (Mon, 28 Apr 2008)

Log Message:
-----------
addec countstep

Modified Paths:
--------------
    python-commons/trunk/src/commons/seqs.py

Modified: python-commons/trunk/src/commons/seqs.py
===================================================================
--- python-commons/trunk/src/commons/seqs.py	2008-04-25 21:38:05 UTC (rev 685)
+++ python-commons/trunk/src/commons/seqs.py	2008-04-29 00:31:41 UTC (rev 686)
@@ -341,6 +341,15 @@
             del chunk[ ( i + 1 ) % n : ]
             yield chunk
 
+def countstep(start, step):
+    """
+    Generate [start, start+step, start+2*step, start+3*step, ...].
+    """
+    i = start
+    while True:
+        yield i
+        i += step
+
 def take(n, seq):
     return list(islice(seq, n))
 


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[Assorted-commits] SF.net SVN: assorted: [685] sandbox/trunk/src/c/printf.c

[<yan...@us...>]

Revision: 685
          http://assorted.svn.sourceforge.net/assorted/?rev=685&view=rev
Author:   yangzhang
Date:     2008-04-25 14:38:05 -0700 (Fri, 25 Apr 2008)

Log Message:
-----------
added printf() demo

Added Paths:
-----------
    sandbox/trunk/src/c/printf.c

Added: sandbox/trunk/src/c/printf.c
===================================================================
--- sandbox/trunk/src/c/printf.c	                        (rev 0)
+++ sandbox/trunk/src/c/printf.c	2008-04-25 21:38:05 UTC (rev 685)
@@ -0,0 +1,12 @@
+// Demo the various printf() flags.
+
+#include <stddef.h>
+#include <stdio.h>
+
+int
+main()
+{
+  size_t x = 3;
+  printf("%zu\n", x);
+  return 0;
+}


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[Assorted-commits] SF.net SVN: assorted: [684] java-reactor/trunk/README

[<yan...@us...>]

Revision: 684
          http://assorted.svn.sourceforge.net/assorted/?rev=684&view=rev
Author:   yangzhang
Date:     2008-04-24 16:57:51 -0700 (Thu, 24 Apr 2008)

Log Message:
-----------
updated readme

Modified Paths:
--------------
    java-reactor/trunk/README

Modified: java-reactor/trunk/README
===================================================================
--- java-reactor/trunk/README	2008-04-24 21:17:26 UTC (rev 683)
+++ java-reactor/trunk/README	2008-04-24 23:57:51 UTC (rev 684)
@@ -4,15 +4,14 @@
 --------
 
 This is a completely minimal implementation of a select-based reactor framework
-for event-based asynchronous IO programming. The reactor core supports
-scheduling of tasks (a la Twisted, asio, etc.). This was written after
-witnessing the inefficiency of various other reactor-based implementations - at
-least for the very particular environment that is PlanetLab. It also helped us
-remove the need for a separate thread for the scheduled executor tasks - these
-are run in-line.
+for event-based asynchronous IO programming.  The reactor core supports
+scheduling of tasks (a la Twisted, asio, etc.).  This was written for the
+constrained-resource environment that is PlanetLab.  It also helped us remove
+the need for a separate thread for the scheduled executor tasks - these are run
+in-line (using timeouts to select).
 
 Aside from its simplicity, efficiency, and support for scheduled tasks, it also
-has no dependencies except for Java 6.
+has no dependencies except for Java 6.  Currently only UDP is supported.
 
 Related Work
 ------------


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[Assorted-commits] SF.net SVN: assorted: [683] configs/trunk

[<yan...@us...>]

Revision: 683
          http://assorted.svn.sourceforge.net/assorted/?rev=683&view=rev
Author:   yangzhang
Date:     2008-04-24 14:17:26 -0700 (Thu, 24 Apr 2008)

Log Message:
-----------
moved preferred valgrind options to bashrc.bash (xvalgrind) since scripts, etc. using valgrind cannot override these settings

Modified Paths:
--------------
    configs/trunk/setup-yang.bash

Removed Paths:
-------------
    configs/trunk/src/valgrindrc

Modified: configs/trunk/setup-yang.bash
===================================================================
--- configs/trunk/setup-yang.bash	2008-04-24 20:51:27 UTC (rev 682)
+++ configs/trunk/setup-yang.bash	2008-04-24 21:17:26 UTC (rev 683)
@@ -14,7 +14,6 @@
 install .astylerc astylerc
 install .screenrc screenrc
 install .pythonrc.py pythonrc.py
-install .valgrindrc valgrindrc
 install .darcs/ darcs/boring
 install .subversion/ subversion/config
 install .Xdefaults Xdefaults

Deleted: configs/trunk/src/valgrindrc
===================================================================
--- configs/trunk/src/valgrindrc	2008-04-24 20:51:27 UTC (rev 682)
+++ configs/trunk/src/valgrindrc	2008-04-24 21:17:26 UTC (rev 683)
@@ -1,7 +0,0 @@
---track-fds=yes
---db-attach=yes
---verbose
---tool=memcheck
---leak-check=yes
---leak-resolution=high
---show-reachable=yes


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[Assorted-commits] SF.net SVN: assorted: [682] sandbox/trunk/src/cc

[<yan...@us...>]

Revision: 682
          http://assorted.svn.sourceforge.net/assorted/?rev=682&view=rev
Author:   yangzhang
Date:     2008-04-24 13:51:27 -0700 (Thu, 24 Apr 2008)

Log Message:
-----------
added simple valgrind test

Added Paths:
-----------
    sandbox/trunk/src/cc/valgrind/
    sandbox/trunk/src/cc/valgrind/corrupt.cc

Added: sandbox/trunk/src/cc/valgrind/corrupt.cc
===================================================================
--- sandbox/trunk/src/cc/valgrind/corrupt.cc	                        (rev 0)
+++ sandbox/trunk/src/cc/valgrind/corrupt.cc	2008-04-24 20:51:27 UTC (rev 682)
@@ -0,0 +1,12 @@
+// Just so I have something to test out valgrind against.
+
+#include <stdlib.h>
+#include <string.h>
+
+int
+main()
+{
+  void *p = malloc(4);
+  while (1) memset(p, 0, 8);
+  return 0;
+}


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[Assorted-commits] SF.net SVN: assorted: [681] simple-build/trunk/setup.bash

[<yan...@us...>]

Revision: 681
          http://assorted.svn.sourceforge.net/assorted/?rev=681&view=rev
Author:   yangzhang
Date:     2008-04-24 09:27:39 -0700 (Thu, 24 Apr 2008)

Log Message:
-----------
failstop

Modified Paths:
--------------
    simple-build/trunk/setup.bash

Modified: simple-build/trunk/setup.bash
===================================================================
--- simple-build/trunk/setup.bash	2008-04-24 16:26:11 UTC (rev 680)
+++ simple-build/trunk/setup.bash	2008-04-24 16:27:39 UTC (rev 681)
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 pkg=simple-build
-. simple-setup.bash
+. simple-setup.bash || exit 1
 
 install_strip bin/ src/googlecode_upload.py
 install bin/ src/{build.bash,capture-javac-deps,out/simple-build}


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[Assorted-commits] SF.net SVN: assorted: [680] js-beautifier/trunk/README

[<yan...@us...>]

Revision: 680
          http://assorted.svn.sourceforge.net/assorted/?rev=680&view=rev
Author:   yangzhang
Date:     2008-04-24 09:26:11 -0700 (Thu, 24 Apr 2008)

Log Message:
-----------
updated readme

Modified Paths:
--------------
    js-beautifier/trunk/README

Modified: js-beautifier/trunk/README
===================================================================
--- js-beautifier/trunk/README	2008-04-24 16:13:04 UTC (rev 679)
+++ js-beautifier/trunk/README	2008-04-24 16:26:11 UTC (rev 680)
@@ -4,8 +4,22 @@
 Overview
 --------
 
-This is a wrapper for the [elfz Javascript beautifier].  I found this to be the best Javascript beautifier available, but I needed to be able to run it in batch and from shell scripts.  Since I needed also to parse Facebook's monstrous common.js file, I decided to also look into [Tamarin], Adobe's JIT gift to Mozilla.  It provides the minimal file IO facilities needed to run this beautifier tool standalone.
+This is a wrapper for the [elfz Javascript beautifier].  I found this to be the
+best Javascript beautifier available, but I needed to be able to run it in
+batch and from shell scripts.  Since I needed also to parse Facebook's
+monstrous common.js file, I decided to also look into [Tamarin], Adobe's JIT
+gift to Mozilla.  It provides the minimal file IO facilities needed to run this
+beautifier tool standalone, but most importantly, I had to beautify a lot of
+code, so it behooved me to use the fastest JS implementation available.
 
 [elfz Javascript beautifier]: http://elfz.laacz.lv/beautify/
 [Tamarin]: http://www.mozilla.org/projects/tamarin/
 
+Setup
+-----
+
+To build Tamarin, you need to follow the instructions on the [MDC].  Tamarin is
+a bit different from most JS implementations in that compilation to bytecode is
+performed separately from the execution (javac:java::asc:avmplus).
+
+[MDC]: http://developer.mozilla.org/en/docs/Tamarin_Build_Documentation


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[Assorted-commits] SF.net SVN: assorted: [679] shell-tools/trunk/setup.bash

[<yan...@us...>]

Revision: 679
          http://assorted.svn.sourceforge.net/assorted/?rev=679&view=rev
Author:   yangzhang
Date:     2008-04-24 09:13:04 -0700 (Thu, 24 Apr 2008)

Log Message:
-----------
updated install script

Modified Paths:
--------------
    shell-tools/trunk/setup.bash

Modified: shell-tools/trunk/setup.bash
===================================================================
--- shell-tools/trunk/setup.bash	2008-04-24 16:11:51 UTC (rev 678)
+++ shell-tools/trunk/setup.bash	2008-04-24 16:13:04 UTC (rev 679)
@@ -7,9 +7,15 @@
 . src/bash-commons/simple-setup.bash
 
 for path in "src/bash-commons/"* ; do
-    install bin/ "$path"
+  install bin/ "$path"
 done
 
+for path in "src/"*.hs ; do
+  install bin/ "$path"
+done
+
 for path in "src/"*.* ; do
-    install_strip bin/ "$path"
+  if [[ "$path" == "${path%.hs}" ]]
+  then install_strip bin/ "$path"
+  fi
 done


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[Assorted-commits] SF.net SVN: assorted: [678] shell-tools/trunk/src/bash-commons

[<yan...@us...>]

Revision: 678
          http://assorted.svn.sourceforge.net/assorted/?rev=678&view=rev
Author:   yangzhang
Date:     2008-04-24 09:11:51 -0700 (Thu, 24 Apr 2008)

Log Message:
-----------
added reconf, kreconf, bbfix

Modified Paths:
--------------
    shell-tools/trunk/src/bash-commons/bashrc.bash
    shell-tools/trunk/src/bash-commons/common.bash

Modified: shell-tools/trunk/src/bash-commons/bashrc.bash
===================================================================
--- shell-tools/trunk/src/bash-commons/bashrc.bash	2008-04-23 20:41:17 UTC (rev 677)
+++ shell-tools/trunk/src/bash-commons/bashrc.bash	2008-04-24 16:11:51 UTC (rev 678)
@@ -203,7 +203,7 @@
 }
 
 function ll {
-    l -Al "$@"
+    l -Ahl "$@"
 }
 
 function wgr {
@@ -530,8 +530,39 @@
     done
 }
 
+function kreconf() {
+    reconf -k "$@"
+}
+
+function reconf() {
+    svn -q up
+
+    if svn status | grep -q '^C'
+    then return 1
+    fi
+
+    make -sj2 distclean || true
+    make -sj2 clean || true
+
+    if [[ "$1" == '-k' ]]
+    then shift; cscope -bqRk
+    else cscope -bqR
+    fi
+    ctags-exuberant -R .
+
+    if [[ -f Doxyfile ]]
+    then doxygen
+    fi
+
+    if [[ -x configure ]]
+    then ./configure --quiet
+    fi
+
+    make -sj2
+}
+
 #function set_title() {
-#    if [ $# -eq 0 ] ; then
+#   if [ $# -eq 0 ] ; then
 #       eval set -- "$PWD"
 #   fi
 #

Modified: shell-tools/trunk/src/bash-commons/common.bash
===================================================================
--- shell-tools/trunk/src/bash-commons/common.bash	2008-04-23 20:41:17 UTC (rev 677)
+++ shell-tools/trunk/src/bash-commons/common.bash	2008-04-24 16:11:51 UTC (rev 678)
@@ -406,6 +406,25 @@
   sort -u
 }
 
+bbfix() {
+  # bbfix, by Patrick Reynolds (reynolds .at. cs duke edu)
+  # Too trivial to copyright.  It's in the public domain!
+  #
+  # Usage:
+  #   ./bbfix foo.eps
+
+  if [ $# = 0 ]; then
+    echo "Usage:"
+    echo "  $0 file.eps [file.eps [file.eps [...]]]"
+    exit
+  fi
+
+  for fn in "$@"; do
+    BB=`gs -q -sDEVICE=bbox -dNOPAUSE -dBATCH $fn 2>&1 | grep '^%%BoundingBox'`
+    perl -i -pne 's/^%%BoundingBox.*/'"$BB"'/' $fn
+  done
+}
+
 #if ! is_declared indent ; then
 #    noindent
 #else


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