search for: plugin_rb_zero

...VALUE set_error(VALUE self, VALUE arg) @@ -58,6 +60,7 @@ set_error(VALUE self, VALUE arg) } else { err = NUM2INT(arg); } + last_error = err; nbdkit_set_error(err); return Qnil; } @@ -367,6 +370,30 @@ plugin_rb_trim (void *handle, uint32_t count, uint64_t offset) } static int +plugin_rb_zero (void *handle, uint32_t count, uint64_t offset, int may_trim) +{ + volatile VALUE argv[4]; + + argv[0] = (VALUE) handle; + argv[1] = ULL2NUM (count); + argv[2] = ULL2NUM (offset); + argv[3] = may_trim ? Qtrue : Qfalse; + exception_happened = 0; + last_error = 0; + (void) funcall2 (Qnil, rb_...

Similar to python and perl. But MUCH easier (especially considering that this is the first time I've every tried to run Ruby). I even had fun making set_error() polymorphic. Eric Blake (2): ruby: Expose nbdkit_set_error to ruby script ruby: Support zero callback plugins/ruby/example.rb | 11 ++++++++ plugins/ruby/nbdkit-ruby-plugin.pod | 54

...ests this particular error, we want to gracefully fall back, and to accomodate both a normal return and an exception. */ diff --git a/plugins/ruby/ruby.c b/plugins/ruby/ruby.c index b31f6a4e..ff7932c4 100644 --- a/plugins/ruby/ruby.c +++ b/plugins/ruby/ruby.c @@ -420,7 +420,7 @@ plugin_rb_zero (void *handle, uint32_t count, uint64_t offset, int may_trim) argv[3] = may_trim ? Qtrue : Qfalse; last_error = 0; (void) funcall2 (Qnil, rb_intern ("zero"), 4, argv, &exception_happened); - if (last_error == EOPNOTSUPP || + if (last_error == EOPNOTSUPP || last_error == ENO...

I ran into these while trying to prepare patches to add NBD_CMD_FLAG_FAST_ZERO, which will expose a new NBD_ENOTSUP wire value. Eric Blake (2): plugins: Don't lose original error when emulating FUA plugins: Permit ENOTSUP as synonym for EOPNOTSUPP docs/nbdkit-filter.pod | 11 ++++++----- docs/nbdkit-plugin.pod | 12 +++++++----- plugins/file/file.c | 16 +++++++++++-----

...;FILENAME> (required) The Ruby plugin to run.\n" \ "[other arguments may be used by the plugin that you load]" @@ -511,8 +501,6 @@ static struct nbdkit_plugin plugin = { .flush = plugin_rb_flush, .trim = plugin_rb_trim, .zero = plugin_rb_zero, - - .errno_is_reliable = plugin_rb_errno_is_reliable, }; NBDKIT_REGISTER_PLUGIN(plugin) diff --git a/src/connections.c b/src/connections.c index cf06ac5..a0d689a 100644 --- a/src/connections.c +++ b/src/connections.c @@ -498,10 +498,7 @@ negotiate_handshake (struct connection *conn) int r;...

See patch 1 for rationale.