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| author | Eric Wong <normalperson@yhbt.net> | 2010-01-07 00:37:57 -0800 |
|---|---|---|
| committer | Eric Wong <normalperson@yhbt.net> | 2010-01-07 01:15:05 -0800 |
| commit | 40d61f55ac53e3cd2f229d0b032da03032e3d53d (patch) | |
| tree | 4c57be5ba0dd0a9f1dff33bada0635188848e50b /README | |
| parent | d8c8fb4155c1feea454abc3ed3f0a4b26e90be68 (diff) | |
| download | ruby_posix_mq-40d61f55ac53e3cd2f229d0b032da03032e3d53d.tar.gz | |
This is implementation uses both a short-lived POSIX thread and a pre-spawned Ruby Thread in a manner that works properly under both Ruby 1.8 (green threads) and 1.9 (where Ruby Threads are POSIX threads). The short-lived POSIX thread will write a single "\0" byte to a pipe the Ruby Thread waits on. This operation is atomic on all platforms. Once the Ruby Thread is woken up from the pipe, it will execute th block given to it. This dual-thread implementation is inspired by the way glibc implements mq_notify(3) + SIGEV_THREAD under Linux where the kernel itself cannot directly spawn POSIX threads.
Diffstat (limited to 'README')
| -rw-r--r-- | README | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -11,7 +11,8 @@ network-aware message queue implementations. == Features -* Supports message notifications via signals. +* Supports message notifications via signals and block execution + in a separate thread. * Supports portable non-blocking operation. Under Linux 2.6.6+ and FreeBSD 7.2+, POSIX_MQ objects may even be used with event @@ -19,7 +20,8 @@ network-aware message queue implementations. * Optional timeouts may be applied to send and receive operations. -* Thread-safe under Ruby 1.9, releases GVL before blocking operations. +* Thread-safe blocking operations under Ruby 1.9, releases GVL + before blocking operations. * Documented library API |