core
/
process_shared
6
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Rdoc formatting.

This commit is contained in:
Patrick Mahoney 2012-03-04 10:29:43 -06:00
parent b7d26ebd12
commit b6a6c2f241
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
README.rdoc
View File

@ -8,7 +8,7 @@ Mac. Atop these semaphores are implemented ProcessShared::Semaphore,
ProcessShared::Mutex. POSIX shared memory is used to implement
ProcessShared::SharedMemory.
On Linux, POSIX semaphores support +sem_timedwait()+ which can wait on
On Linux, POSIX semaphores support <tt>sem_timedwait()</tt> which can wait on
a semaphore but stop waiting after a timeout.
Mac OS X's implementation of POSIX semaphores does not support
@ -16,9 +16,9 @@ timeouts. But, the Mach layer in Mac OS X has its own semaphores that
do support timeouts. Thus, process_shared implements a moderate
subset of the Mach API, which is quite a bit different from POSIX.
Namely, semaphores created in one process are not available in child
processes created via +fork()+. Mach does provide the means to copy
processes created via <tt>fork()</tt>. Mach does provide the means to copy
capabilities between tasks (Mach equivalent to processes).
process_shared overrides Ruby's +fork+ methods so that semaphores are
process_shared overrides Ruby's <tt>fork</tt> methods so that semaphores are
copied from parent to child to emulate the POSIX behavior.
This is an incomplete work in progress.