Some *_free functions threw asserts when passed NULL. Now all of them
accept NULL as input and perform no action when called that way.

This gains us consistence for our free functions, and allows some
code simplifications where an explicit null check is no longer necessary.

On this OSX version, there is a stub mlockall() function
that doesn't work, *and* the declaration for it is hidden by
an '#ifdef _P1003_1B_VISIBLE'.  This would make autoconf
successfully find the function, but our code fail to build
when no declaration was found.

This patch adds an additional test for the declaration.

Jacob Appelbaum authored Nov 14, 2009 and Nick Mathewson committed Nov 14, 2009

This fixes bug 1147:

 bionic doesn't have an actual implementation of mlockall();
 mlockall() is merely in the headers but not actually in the library.
 This prevents Tor compilation with the bionic libc for Android handsets.

Jacob Appelbaum authored Oct 21, 2009 and Roger Dingledine committed Oct 27, 2009

This commit implements a new config option: 'DisableAllSwap'
This option probably only works properly when Tor is started as root.
We added two new functions: tor_mlockall() and tor_set_max_memlock().
tor_mlockall() attempts to mlock() all current and all future memory pages.
For tor_mlockall() to work properly we set the process rlimits for memory to
RLIM_INFINITY (and beyond) inside of tor_set_max_memlock().
We behave differently from mlockall() by only allowing tor_mlockall() to be
called one single time. All other calls will result in a return code of 1.
It is not possible to change DisableAllSwap while running.
A sample configuration item was added to the torrc.complete.in config file.
A new item in the man page for DisableAllSwap was added.
Thanks to Moxie Marlinspike and Chris Palmer for their feedback on this patch.

Please note that we make no guarantees about the quality of your OS and its
mlock/mlockall implementation. It is possible that this will do nothing at all.
It is also possible that you can ulimit the mlock properties of a given user
such that root is not required. This has not been extensively tested and is
unsupported. I have included some comments for possible ways we can handle
this on win32.

Sebastian Hahn authored Sep 03, 2009 and Roger Dingledine committed Sep 15, 2009

documentation fix for get_uint64
remove extra "." from a log line
fix a long line

I don't think we actually use (or plan to use) strtok_r in a reentrant
way anywhere in our code, but would be nice not to have to think about
whether we're doing it.

This patch adds a function to determine whether we're in the main
thread, and changes control_event_logmsg() to return immediately if
we're in a subthread.  This is necessary because otherwise we will
call connection_write_to_buf, which modifies non-locked data
structures.

Bugfix on 0.2.0.x; fix for at least one of the things currently
called "bug 977".

This matters because a cpuworker can close its socket when it
finishes.  Cpuworker typically runs in another thread, so without a
lock here, we can have a race condition and get confused about how
many sockets are open.  Possible fix for bug 939.

svn:r18761

It seems that 64-bit Sparc Solaris demands 64-bit-aligned access to
uint64_t, but does not 64-bit-align the stack-allocated char array we
use for cpuworker tags.  So this patch adds a set/get_uint64 pair, and
uses them to access the conn_id field in the tag.

svn:r18743

svn:r18449

svn:r18422

svn:r18203

Add a better (non-locale-having) ctypes implementation to avoid protocol and parsing mismatches on different platforms.

svn:r18189

svn:r17887

The subversion $Id$ fields made every commit force a rebuild of
whatever file got committed.  They were not actually useful for
telling the version of Tor files in the wild.

svn:r17867

svn:r17827

svn:r17741

svn:r17739

svn:r17734

Add DOCDOC comments for all undocumented functions.  Add missing *s to other comments so that they will get recognized as doxygen.

svn:r17729

Lower sprintf buffer max to ~SSIZE_T_MAX from SIZE_T_CEILING, since we need to compare it to a signed int.

svn:r17600

svn:r17543

svn:r17522

svn:r17493

svn:r17490

svn:r17484

svn:r17457

Add two lseek wrappers to compat.[ch]: one to return current fd position, and one to move the fd to the end of the file.

svn:r17454

svn:r17392

svn:r17391

apply sebastian's fix for bug 859. Apparently on win32 one must lock at least one byte when locking, but locking a nonexistant byte is okay. ) 

svn:r17244

svn:r17239

svn:r17233

hopefully will address bug 857.


svn:r17232

svn:r17228