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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2009-03-19 11:40:38 +0000
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2009-03-19 11:40:38 +0000
commitc4049f4cb6d27ffdfe9f15f4a9ddc5a48271ecf3 (patch)
tree98df695950d4ad9be608b21479593d4825e293d9 /ext/socket/udpsocket.c
parentb7800329d3070a4fb9f9dbdbe8b411c5f628f942 (diff)
* io.c (rb_mWaitReadable): defined.
(rb_mWaitWritable): defined. (io_getpartial): extend IO::WaitReadable on EWOULDBLOCK and EAGAIN. (rb_io_write_nonblock): extend IO::WaitWritable on EWOULDBLOCK and EAGAIN. * error.c (make_errno_exc): extracted from rb_sys_fail. (rb_mod_sys_fail): new function. * include/ruby/ruby.h (rb_mod_sys_fail): declared. (rb_mWaitReadable): declared. (rb_mWaitWritable): declared. * ext/socket/init.c (rsock_s_recvfrom_nonblock): extend IO::WaitReadable on EWOULDBLOCK and EAGAIN. (rsock_s_accept_nonblock): extend IO::WaitReadable on EWOULDBLOCK, EAGAIN, ECONNABORTED and EPROTO. * ext/socket/socket.c (sock_connect_nonblock): extend IO::WaitWritable on EINPROGRESS. * ext/socket/ancdata.c (bsock_sendmsg_internal): extend IO::WaitWritable on EWOULDBLOCK and EAGAIN. (bsock_recvmsg_internal): extend IO::WaitReadable on EWOULDBLOCK and EAGAIN. * ext/openssl/ossl_ssl.c (ossl_ssl_read_internal): raise SSLError extended by IO::WaitReadable/IO::WaitWritable on SSL_ERROR_WANT_READ/SSL_ERROR_WANT_WRITE. * ext/openssl/ossl.c (ossl_make_error): extracted from ossl_raise. (ossl_exc_new): new function. * ext/openssl/ossl.h (ossl_exc_new): declared. * lib/net/protocol.rb (rbuf_fill): rescue IO::WaitReadable and IO::WaitWritable. [ruby-core:22539], [ruby-dev:38140] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23006 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/socket/udpsocket.c')
-rw-r--r--ext/socket/udpsocket.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/ext/socket/udpsocket.c b/ext/socket/udpsocket.c
index 2463c83..ae1f70e 100644
--- a/ext/socket/udpsocket.c
+++ b/ext/socket/udpsocket.c
@@ -218,8 +218,12 @@ udp_send(int argc, VALUE *argv, VALUE sock)
* s2.connect(*s1.addr.values_at(3,1))
* s1.connect(*s2.addr.values_at(3,1))
* s1.send "aaa", 0
- * IO.select([s2]) # emulate blocking recvfrom
- * p s2.recvfrom_nonblock(10) #=> ["aaa", ["AF_INET", 33302, "localhost.localdomain", "127.0.0.1"]]
+ * begin # emulate blocking recvfrom
+ * p s2.recvfrom_nonblock(10) #=> ["aaa", ["AF_INET", 33302, "localhost.localdomain", "127.0.0.1"]]
+ * rescue IO::WaitReadable
+ * IO.select([s2])
+ * retry
+ * end
*
* Refer to Socket#recvfrom for the exceptions that may be thrown if the call
* to _recvfrom_nonblock_ fails.
@@ -227,6 +231,10 @@ udp_send(int argc, VALUE *argv, VALUE sock)
* UDPSocket#recvfrom_nonblock may raise any error corresponding to recvfrom(2) failure,
* including Errno::EWOULDBLOCK.
*
+ * If the exception is Errno::EWOULDBLOCK or Errno::AGAIN,
+ * it is extended by IO::WaitReadable.
+ * So IO::WaitReadable can be used to rescue the exceptions for retrying recvfrom_nonblock.
+ *
* === See
* * Socket#recvfrom
*/