diff options
Diffstat (limited to 'ev.pod')
| -rw-r--r-- | ev.pod | 25 |
1 files changed, 14 insertions, 11 deletions
@@ -4533,9 +4533,10 @@ OpenGL drivers. The kqueue syscall is broken in all known versions - most versions support only sockets, many support pipes. -Libev tries to work around this by not using C<kqueue> by default on -this rotten platform, but of course you can still ask for it when creating -a loop. +Libev tries to work around this by not using C<kqueue> by default on this +rotten platform, but of course you can still ask for it when creating a +loop - embedding a socket-only kqueue loop into a select-based one is +probably going to work well. =head3 C<poll> is buggy @@ -4564,19 +4565,21 @@ work on OS/X. The default compile environment on Solaris is unfortunately so thread-unsafe that you can't even use components/libraries compiled -without C<-D_REENTRANT> (as long as they use C<errno>), which, of course, -isn't defined by default. +without C<-D_REENTRANT> in a threaded program, which, of course, isn't +defined by default. A valid, if stupid, implementation choice. If you want to use libev in threaded environments you have to make sure it's compiled with C<_REENTRANT> defined. =head3 Event port backend -The scalable event interface for Solaris is called "event ports". Unfortunately, -this mechanism is very buggy. If you run into high CPU usage, your program -freezes or you get a large number of spurious wakeups, make sure you have -all the relevant and latest kernel patches applied. No, I don't know which -ones, but there are multiple ones. +The scalable event interface for Solaris is called "event +ports". Unfortunately, this mechanism is very buggy in all major +releases. If you run into high CPU usage, your program freezes or you get +a large number of spurious wakeups, make sure you have all the relevant +and latest kernel patches applied. No, I don't know which ones, but there +are multiple ones to apply, and afterwards, event ports actually work +great. If you can't get it to work, you can try running the program by setting the environment variable C<LIBEV_FLAGS=3> to only allow C<poll> and @@ -4587,7 +4590,7 @@ C<select> backends. AIX unfortunately has a broken C<poll.h> header. Libev works around this by trying to avoid the poll backend altogether (i.e. it's not even compiled in), which normally isn't a big problem as C<select> works fine -with large bitsets, and AIX is dead anyway. +with large bitsets on AIX, and AIX is dead anyway. =head2 WIN32 PLATFORM LIMITATIONS AND WORKAROUNDS |