Use send/recv for socket stream instead of read/write.
Use event handle for polling on socket stream.
Check windows specific return code.
Signed-off-by: Linda Sun <lsun@vmware.com>
Signed-off-by: Gurucharan Shetty <gshetty@nicira.com>
lib/sset.h \
lib/stp.c \
lib/stp.h \
- lib/stream-fd.c \
lib/stream-fd.h \
lib/stream-provider.h \
lib/stream-ssl.h \
lib_libopenvswitch_la_SOURCES += \
lib/daemon-windows.c \
lib/getopt_long.c \
- lib/latch-windows.c
+ lib/latch-windows.c \
+ lib/stream-fd-windows.c
else
lib_libopenvswitch_la_SOURCES += \
lib/daemon.c \
- lib/latch.c \
+ lib/latch-unix.c \
+ lib/stream-fd-unix.c \
lib/stream-unix.c
endif
--- /dev/null
+/*
+ * Copyright (c) 2013 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <config.h>
+
+#include "latch.h"
+#include <errno.h>
+#include <poll.h>
+#include <unistd.h>
+#include "poll-loop.h"
+#include "socket-util.h"
+
+/* Initializes 'latch' as initially unset. */
+void
+latch_init(struct latch *latch)
+{
+ xpipe_nonblocking(latch->fds);
+}
+
+/* Destroys 'latch'. */
+void
+latch_destroy(struct latch *latch)
+{
+ close(latch->fds[0]);
+ close(latch->fds[1]);
+}
+
+/* Resets 'latch' to the unset state. Returns true if 'latch' was previously
+ * set, false otherwise. */
+bool
+latch_poll(struct latch *latch)
+{
+ char buffer[_POSIX_PIPE_BUF];
+
+ return read(latch->fds[0], buffer, sizeof buffer) > 0;
+}
+
+/* Sets 'latch'.
+ *
+ * Calls are not additive: a single latch_poll() clears out any number of
+ * latch_set(). */
+void
+latch_set(struct latch *latch)
+{
+ ignore(write(latch->fds[1], "", 1));
+}
+
+/* Returns true if 'latch' is set, false otherwise. Does not reset 'latch'
+ * to the unset state. */
+bool
+latch_is_set(const struct latch *latch)
+{
+ struct pollfd pfd;
+ int retval;
+
+ pfd.fd = latch->fds[0];
+ pfd.events = POLLIN;
+ do {
+ retval = poll(&pfd, 1, 0);
+ } while (retval < 0 && errno == EINTR);
+
+ return pfd.revents & POLLIN;
+}
+
+/* Causes the next poll_block() to wake up when 'latch' is set.
+ *
+ * ('where' is used in debug logging. Commonly one would use latch_wait() to
+ * automatically provide the caller's source file and line number for
+ * 'where'.) */
+void
+latch_wait_at(const struct latch *latch, const char *where)
+{
+ poll_fd_wait_at(latch->fds[0], 0, POLLIN, where);
+}
+++ /dev/null
-/*
- * Copyright (c) 2013 Nicira, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <config.h>
-
-#include "latch.h"
-#include <errno.h>
-#include <poll.h>
-#include <unistd.h>
-#include "poll-loop.h"
-#include "socket-util.h"
-
-/* Initializes 'latch' as initially unset. */
-void
-latch_init(struct latch *latch)
-{
- xpipe_nonblocking(latch->fds);
-}
-
-/* Destroys 'latch'. */
-void
-latch_destroy(struct latch *latch)
-{
- close(latch->fds[0]);
- close(latch->fds[1]);
-}
-
-/* Resets 'latch' to the unset state. Returns true if 'latch' was previously
- * set, false otherwise. */
-bool
-latch_poll(struct latch *latch)
-{
- char buffer[_POSIX_PIPE_BUF];
-
- return read(latch->fds[0], buffer, sizeof buffer) > 0;
-}
-
-/* Sets 'latch'.
- *
- * Calls are not additive: a single latch_poll() clears out any number of
- * latch_set(). */
-void
-latch_set(struct latch *latch)
-{
- ignore(write(latch->fds[1], "", 1));
-}
-
-/* Returns true if 'latch' is set, false otherwise. Does not reset 'latch'
- * to the unset state. */
-bool
-latch_is_set(const struct latch *latch)
-{
- struct pollfd pfd;
- int retval;
-
- pfd.fd = latch->fds[0];
- pfd.events = POLLIN;
- do {
- retval = poll(&pfd, 1, 0);
- } while (retval < 0 && errno == EINTR);
-
- return pfd.revents & POLLIN;
-}
-
-/* Causes the next poll_block() to wake up when 'latch' is set.
- *
- * ('where' is used in debug logging. Commonly one would use latch_wait() to
- * automatically provide the caller's source file and line number for
- * 'where'.) */
-void
-latch_wait_at(const struct latch *latch, const char *where)
-{
- poll_fd_wait_at(latch->fds[0], 0, POLLIN, where);
-}
--- /dev/null
+/*
+ * Copyright (c) 2008, 2009, 2010, 2012, 2013, 2014 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <config.h>
+#include "stream-fd.h"
+#include <errno.h>
+#include <poll.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include "fatal-signal.h"
+#include "poll-loop.h"
+#include "socket-util.h"
+#include "util.h"
+#include "stream-provider.h"
+#include "stream.h"
+#include "vlog.h"
+
+VLOG_DEFINE_THIS_MODULE(stream_fd);
+
+/* Active file descriptor stream. */
+
+struct stream_fd
+{
+ struct stream stream;
+ int fd;
+};
+
+static const struct stream_class stream_fd_class;
+
+static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 25);
+
+static void maybe_unlink_and_free(char *path);
+
+/* Creates a new stream named 'name' that will send and receive data on 'fd'
+ * and stores a pointer to the stream in '*streamp'. Initial connection status
+ * 'connect_status' is interpreted as described for stream_init().
+ *
+ * Returns 0 if successful, otherwise a positive errno value. (The current
+ * implementation never fails.) */
+int
+new_fd_stream(const char *name, int fd, int connect_status,
+ struct stream **streamp)
+{
+ struct stream_fd *s;
+
+ s = xmalloc(sizeof *s);
+ stream_init(&s->stream, &stream_fd_class, connect_status, name);
+ s->fd = fd;
+ *streamp = &s->stream;
+ return 0;
+}
+
+static struct stream_fd *
+stream_fd_cast(struct stream *stream)
+{
+ stream_assert_class(stream, &stream_fd_class);
+ return CONTAINER_OF(stream, struct stream_fd, stream);
+}
+
+static void
+fd_close(struct stream *stream)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ close(s->fd);
+ free(s);
+}
+
+static int
+fd_connect(struct stream *stream)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ return check_connection_completion(s->fd);
+}
+
+static ssize_t
+fd_recv(struct stream *stream, void *buffer, size_t n)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ ssize_t retval;
+
+ retval = read(s->fd, buffer, n);
+ return retval >= 0 ? retval : -errno;
+}
+
+static ssize_t
+fd_send(struct stream *stream, const void *buffer, size_t n)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ ssize_t retval;
+
+ retval = write(s->fd, buffer, n);
+ return (retval > 0 ? retval
+ : retval == 0 ? -EAGAIN
+ : -errno);
+}
+
+static void
+fd_wait(struct stream *stream, enum stream_wait_type wait)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ switch (wait) {
+ case STREAM_CONNECT:
+ case STREAM_SEND:
+ poll_fd_wait(s->fd, POLLOUT);
+ break;
+
+ case STREAM_RECV:
+ poll_fd_wait(s->fd, POLLIN);
+ break;
+
+ default:
+ OVS_NOT_REACHED();
+ }
+}
+
+static const struct stream_class stream_fd_class = {
+ "fd", /* name */
+ false, /* needs_probes */
+ NULL, /* open */
+ fd_close, /* close */
+ fd_connect, /* connect */
+ fd_recv, /* recv */
+ fd_send, /* send */
+ NULL, /* run */
+ NULL, /* run_wait */
+ fd_wait, /* wait */
+};
+\f
+/* Passive file descriptor stream. */
+
+struct fd_pstream
+{
+ struct pstream pstream;
+ int fd;
+ int (*accept_cb)(int fd, const struct sockaddr_storage *, size_t ss_len,
+ struct stream **);
+ int (*set_dscp_cb)(int fd, uint8_t dscp);
+ char *unlink_path;
+};
+
+static const struct pstream_class fd_pstream_class;
+
+static struct fd_pstream *
+fd_pstream_cast(struct pstream *pstream)
+{
+ pstream_assert_class(pstream, &fd_pstream_class);
+ return CONTAINER_OF(pstream, struct fd_pstream, pstream);
+}
+
+/* Creates a new pstream named 'name' that will accept new socket connections
+ * on 'fd' and stores a pointer to the stream in '*pstreamp'.
+ *
+ * When a connection has been accepted, 'accept_cb' will be called with the new
+ * socket fd 'fd' and the remote address of the connection 'sa' and 'sa_len'.
+ * accept_cb must return 0 if the connection is successful, in which case it
+ * must initialize '*streamp' to the new stream, or a positive errno value on
+ * error. In either case accept_cb takes ownership of the 'fd' passed in.
+ *
+ * When '*pstreamp' is closed, then 'unlink_path' (if nonnull) will be passed
+ * to fatal_signal_unlink_file_now() and freed with free().
+ *
+ * Returns 0 if successful, otherwise a positive errno value. (The current
+ * implementation never fails.) */
+int
+new_fd_pstream(const char *name, int fd,
+ int (*accept_cb)(int fd, const struct sockaddr_storage *ss,
+ size_t ss_len, struct stream **streamp),
+ int (*set_dscp_cb)(int fd, uint8_t dscp),
+ char *unlink_path, struct pstream **pstreamp)
+{
+ struct fd_pstream *ps = xmalloc(sizeof *ps);
+ pstream_init(&ps->pstream, &fd_pstream_class, name);
+ ps->fd = fd;
+ ps->accept_cb = accept_cb;
+ ps->set_dscp_cb = set_dscp_cb;
+ ps->unlink_path = unlink_path;
+ *pstreamp = &ps->pstream;
+ return 0;
+}
+
+static void
+pfd_close(struct pstream *pstream)
+{
+ struct fd_pstream *ps = fd_pstream_cast(pstream);
+ close(ps->fd);
+ maybe_unlink_and_free(ps->unlink_path);
+ free(ps);
+}
+
+static int
+pfd_accept(struct pstream *pstream, struct stream **new_streamp)
+{
+ struct fd_pstream *ps = fd_pstream_cast(pstream);
+ struct sockaddr_storage ss;
+ socklen_t ss_len = sizeof ss;
+ int new_fd;
+ int retval;
+
+ new_fd = accept(ps->fd, (struct sockaddr *) &ss, &ss_len);
+ if (new_fd < 0) {
+ retval = errno;
+ if (retval != EAGAIN) {
+ VLOG_DBG_RL(&rl, "accept: %s", ovs_strerror(retval));
+ }
+ return retval;
+ }
+
+ retval = set_nonblocking(new_fd);
+ if (retval) {
+ close(new_fd);
+ return retval;
+ }
+
+ return ps->accept_cb(new_fd, &ss, ss_len, new_streamp);
+}
+
+static void
+pfd_wait(struct pstream *pstream)
+{
+ struct fd_pstream *ps = fd_pstream_cast(pstream);
+ poll_fd_wait(ps->fd, POLLIN);
+}
+
+static int
+pfd_set_dscp(struct pstream *pstream, uint8_t dscp)
+{
+ struct fd_pstream *ps = fd_pstream_cast(pstream);
+ if (ps->set_dscp_cb) {
+ return ps->set_dscp_cb(ps->fd, dscp);
+ }
+ return 0;
+}
+
+static const struct pstream_class fd_pstream_class = {
+ "pstream",
+ false,
+ NULL,
+ pfd_close,
+ pfd_accept,
+ pfd_wait,
+ pfd_set_dscp,
+};
+\f
+/* Helper functions. */
+static void
+maybe_unlink_and_free(char *path)
+{
+ if (path) {
+ fatal_signal_unlink_file_now(path);
+ free(path);
+ }
+}
--- /dev/null
+/*
+ * Copyright (c) 2014 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <config.h>
+#include "stream-fd.h"
+#include <errno.h>
+#include <poll.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <winsock2.h>
+#include "fatal-signal.h"
+#include "poll-loop.h"
+#include "socket-util.h"
+#include "stream.h"
+#include "stream-provider.h"
+#include "util.h"
+#include "vlog.h"
+
+VLOG_DEFINE_THIS_MODULE(stream_fd_windows);
+
+/* Active file descriptor stream. */
+
+struct stream_fd
+{
+ struct stream stream;
+ int fd;
+ HANDLE wevent;
+};
+
+static const struct stream_class stream_fd_class;
+
+static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 25);
+
+/* Creates a new stream named 'name' that will send and receive data on 'fd'
+ * and stores a pointer to the stream in '*streamp'. Initial connection status
+ * 'connect_status' is interpreted as described for stream_init().
+ *
+ * Returns 0 if successful, otherwise a positive errno value. (The current
+ * implementation never fails.) */
+int
+new_fd_stream(const char *name, int fd, int connect_status,
+ struct stream **streamp)
+{
+ struct stream_fd *s;
+
+ s = xmalloc(sizeof *s);
+ stream_init(&s->stream, &stream_fd_class, connect_status, name);
+ s->fd = fd;
+ s->wevent = CreateEvent(NULL, FALSE, FALSE, NULL);
+ *streamp = &s->stream;
+ return 0;
+}
+
+static struct stream_fd *
+stream_fd_cast(struct stream *stream)
+{
+ stream_assert_class(stream, &stream_fd_class);
+ return CONTAINER_OF(stream, struct stream_fd, stream);
+}
+
+static void
+fd_close(struct stream *stream)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ WSAEventSelect(s->fd, NULL, 0);
+ CloseHandle(s->wevent);
+ closesocket(s->fd);
+ free(s);
+}
+
+static int
+fd_connect(struct stream *stream)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ return check_connection_completion(s->fd);
+}
+
+static ssize_t
+fd_recv(struct stream *stream, void *buffer, size_t n)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ ssize_t retval;
+
+ retval = recv(s->fd, buffer, n, 0);
+ if (retval < 0) {
+ retval = -sock_errno();
+ }
+ if (retval == -WSAEWOULDBLOCK) {
+ return -EAGAIN;
+ }
+ return retval;
+}
+
+static ssize_t
+fd_send(struct stream *stream, const void *buffer, size_t n)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ ssize_t retval;
+
+ retval = send(s->fd, buffer, n, 0);
+ if (retval < 0) {
+ retval = -sock_errno();
+ }
+ if (retval == -WSAEWOULDBLOCK) {
+ return -EAGAIN;
+ }
+
+ return retval;
+}
+
+static void
+fd_wait(struct stream *stream, enum stream_wait_type wait)
+{
+ struct stream_fd *s = stream_fd_cast(stream);
+ switch (wait) {
+ case STREAM_CONNECT:
+ case STREAM_SEND:
+ poll_fd_wait_event(s->fd, s->wevent, POLLOUT);
+ break;
+
+ case STREAM_RECV:
+ poll_fd_wait_event(s->fd, s->wevent, POLLIN);
+ break;
+
+ default:
+ NOT_REACHED();
+ }
+}
+
+static const struct stream_class stream_fd_class = {
+ "fd", /* name */
+ false, /* needs_probes */
+ NULL, /* open */
+ fd_close, /* close */
+ fd_connect, /* connect */
+ fd_recv, /* recv */
+ fd_send, /* send */
+ NULL, /* run */
+ NULL, /* run_wait */
+ fd_wait, /* wait */
+};
+\f
+/* Passive file descriptor stream. */
+
+struct fd_pstream
+{
+ struct pstream pstream;
+ int fd;
+ HANDLE wevent;
+ int (*accept_cb)(int fd, const struct sockaddr_storage *, size_t ss_len,
+ struct stream **);
+ int (*set_dscp_cb)(int fd, uint8_t dscp);
+ char *unlink_path;
+};
+
+static const struct pstream_class fd_pstream_class;
+
+static struct fd_pstream *
+fd_pstream_cast(struct pstream *pstream)
+{
+ pstream_assert_class(pstream, &fd_pstream_class);
+ return CONTAINER_OF(pstream, struct fd_pstream, pstream);
+}
+
+/* Creates a new pstream named 'name' that will accept new socket connections
+ * on 'fd' and stores a pointer to the stream in '*pstreamp'.
+ *
+ * When a connection has been accepted, 'accept_cb' will be called with the new
+ * socket fd 'fd' and the remote address of the connection 'sa' and 'sa_len'.
+ * accept_cb must return 0 if the connection is successful, in which case it
+ * must initialize '*streamp' to the new stream, or a positive errno value on
+ * error. In either case accept_cb takes ownership of the 'fd' passed in.
+ *
+ * When '*pstreamp' is closed, then 'unlink_path' (if nonnull) will be passed
+ * to fatal_signal_unlink_file_now() and freed with free().
+ *
+ * Returns 0 if successful, otherwise a positive errno value. (The current
+ * implementation never fails.) */
+int
+new_fd_pstream(const char *name, int fd,
+ int (*accept_cb)(int fd, const struct sockaddr_storage *ss,
+ size_t ss_len, struct stream **streamp),
+ int (*set_dscp_cb)(int fd, uint8_t dscp),
+ char *unlink_path, struct pstream **pstreamp)
+{
+ struct fd_pstream *ps = xmalloc(sizeof *ps);
+ pstream_init(&ps->pstream, &fd_pstream_class, name);
+ ps->fd = fd;
+ ps->wevent = CreateEvent(NULL, FALSE, FALSE, NULL);
+ ps->accept_cb = accept_cb;
+ ps->set_dscp_cb = set_dscp_cb;
+ ps->unlink_path = unlink_path;
+ *pstreamp = &ps->pstream;
+ return 0;
+}
+
+static void
+pfd_close(struct pstream *pstream)
+{
+ struct fd_pstream *ps = fd_pstream_cast(pstream);
+ WSAEventSelect(ps->fd, NULL, 0);
+ CloseHandle(ps->wevent);
+ closesocket(ps->fd);
+ free(ps);
+}
+
+static int
+pfd_accept(struct pstream *pstream, struct stream **new_streamp)
+{
+ struct fd_pstream *ps = fd_pstream_cast(pstream);
+ struct sockaddr_storage ss;
+ socklen_t ss_len = sizeof ss;
+ int new_fd;
+ int retval;
+
+ new_fd = accept(ps->fd, (struct sockaddr *) &ss, &ss_len);
+ if (new_fd < 0) {
+ retval = sock_errno();
+ if (retval == WSAEWOULDBLOCK) {
+ return EAGAIN;
+ }
+ return retval;
+ }
+
+ retval = set_nonblocking(new_fd);
+ if (retval) {
+ closesocket(new_fd);
+ return retval;
+ }
+
+ return ps->accept_cb(new_fd, &ss, ss_len, new_streamp);
+}
+
+static void
+pfd_wait(struct pstream *pstream)
+{
+ struct fd_pstream *ps = fd_pstream_cast(pstream);
+ poll_fd_wait_event(ps->fd, ps->wevent, POLLIN);
+}
+
+static int
+pfd_set_dscp(struct pstream *pstream, uint8_t dscp)
+{
+ struct fd_pstream *ps = fd_pstream_cast(pstream);
+ if (ps->set_dscp_cb) {
+ return ps->set_dscp_cb(ps->fd, dscp);
+ }
+ return 0;
+}
+
+static const struct pstream_class fd_pstream_class = {
+ "pstream",
+ false,
+ NULL,
+ pfd_close,
+ pfd_accept,
+ pfd_wait,
+ pfd_set_dscp,
+};
+++ /dev/null
-/*
- * Copyright (c) 2008, 2009, 2010, 2012, 2013, 2014 Nicira, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <config.h>
-#include "stream-fd.h"
-#include <errno.h>
-#include <poll.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include "fatal-signal.h"
-#include "poll-loop.h"
-#include "socket-util.h"
-#include "util.h"
-#include "stream-provider.h"
-#include "stream.h"
-#include "vlog.h"
-
-VLOG_DEFINE_THIS_MODULE(stream_fd);
-
-/* Active file descriptor stream. */
-
-struct stream_fd
-{
- struct stream stream;
- int fd;
-};
-
-static const struct stream_class stream_fd_class;
-
-static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(10, 25);
-
-static void maybe_unlink_and_free(char *path);
-
-/* Creates a new stream named 'name' that will send and receive data on 'fd'
- * and stores a pointer to the stream in '*streamp'. Initial connection status
- * 'connect_status' is interpreted as described for stream_init().
- *
- * Returns 0 if successful, otherwise a positive errno value. (The current
- * implementation never fails.) */
-int
-new_fd_stream(const char *name, int fd, int connect_status,
- struct stream **streamp)
-{
- struct stream_fd *s;
-
- s = xmalloc(sizeof *s);
- stream_init(&s->stream, &stream_fd_class, connect_status, name);
- s->fd = fd;
- *streamp = &s->stream;
- return 0;
-}
-
-static struct stream_fd *
-stream_fd_cast(struct stream *stream)
-{
- stream_assert_class(stream, &stream_fd_class);
- return CONTAINER_OF(stream, struct stream_fd, stream);
-}
-
-static void
-fd_close(struct stream *stream)
-{
- struct stream_fd *s = stream_fd_cast(stream);
- close(s->fd);
- free(s);
-}
-
-static int
-fd_connect(struct stream *stream)
-{
- struct stream_fd *s = stream_fd_cast(stream);
- return check_connection_completion(s->fd);
-}
-
-static ssize_t
-fd_recv(struct stream *stream, void *buffer, size_t n)
-{
- struct stream_fd *s = stream_fd_cast(stream);
- ssize_t retval;
-
- retval = read(s->fd, buffer, n);
- return retval >= 0 ? retval : -errno;
-}
-
-static ssize_t
-fd_send(struct stream *stream, const void *buffer, size_t n)
-{
- struct stream_fd *s = stream_fd_cast(stream);
- ssize_t retval;
-
- retval = write(s->fd, buffer, n);
- return (retval > 0 ? retval
- : retval == 0 ? -EAGAIN
- : -errno);
-}
-
-static void
-fd_wait(struct stream *stream, enum stream_wait_type wait)
-{
- struct stream_fd *s = stream_fd_cast(stream);
- switch (wait) {
- case STREAM_CONNECT:
- case STREAM_SEND:
- poll_fd_wait(s->fd, POLLOUT);
- break;
-
- case STREAM_RECV:
- poll_fd_wait(s->fd, POLLIN);
- break;
-
- default:
- OVS_NOT_REACHED();
- }
-}
-
-static const struct stream_class stream_fd_class = {
- "fd", /* name */
- false, /* needs_probes */
- NULL, /* open */
- fd_close, /* close */
- fd_connect, /* connect */
- fd_recv, /* recv */
- fd_send, /* send */
- NULL, /* run */
- NULL, /* run_wait */
- fd_wait, /* wait */
-};
-\f
-/* Passive file descriptor stream. */
-
-struct fd_pstream
-{
- struct pstream pstream;
- int fd;
- int (*accept_cb)(int fd, const struct sockaddr_storage *, size_t ss_len,
- struct stream **);
- int (*set_dscp_cb)(int fd, uint8_t dscp);
- char *unlink_path;
-};
-
-static const struct pstream_class fd_pstream_class;
-
-static struct fd_pstream *
-fd_pstream_cast(struct pstream *pstream)
-{
- pstream_assert_class(pstream, &fd_pstream_class);
- return CONTAINER_OF(pstream, struct fd_pstream, pstream);
-}
-
-/* Creates a new pstream named 'name' that will accept new socket connections
- * on 'fd' and stores a pointer to the stream in '*pstreamp'.
- *
- * When a connection has been accepted, 'accept_cb' will be called with the new
- * socket fd 'fd' and the remote address of the connection 'sa' and 'sa_len'.
- * accept_cb must return 0 if the connection is successful, in which case it
- * must initialize '*streamp' to the new stream, or a positive errno value on
- * error. In either case accept_cb takes ownership of the 'fd' passed in.
- *
- * When '*pstreamp' is closed, then 'unlink_path' (if nonnull) will be passed
- * to fatal_signal_unlink_file_now() and freed with free().
- *
- * Returns 0 if successful, otherwise a positive errno value. (The current
- * implementation never fails.) */
-int
-new_fd_pstream(const char *name, int fd,
- int (*accept_cb)(int fd, const struct sockaddr_storage *ss,
- size_t ss_len, struct stream **streamp),
- int (*set_dscp_cb)(int fd, uint8_t dscp),
- char *unlink_path, struct pstream **pstreamp)
-{
- struct fd_pstream *ps = xmalloc(sizeof *ps);
- pstream_init(&ps->pstream, &fd_pstream_class, name);
- ps->fd = fd;
- ps->accept_cb = accept_cb;
- ps->set_dscp_cb = set_dscp_cb;
- ps->unlink_path = unlink_path;
- *pstreamp = &ps->pstream;
- return 0;
-}
-
-static void
-pfd_close(struct pstream *pstream)
-{
- struct fd_pstream *ps = fd_pstream_cast(pstream);
- close(ps->fd);
- maybe_unlink_and_free(ps->unlink_path);
- free(ps);
-}
-
-static int
-pfd_accept(struct pstream *pstream, struct stream **new_streamp)
-{
- struct fd_pstream *ps = fd_pstream_cast(pstream);
- struct sockaddr_storage ss;
- socklen_t ss_len = sizeof ss;
- int new_fd;
- int retval;
-
- new_fd = accept(ps->fd, (struct sockaddr *) &ss, &ss_len);
- if (new_fd < 0) {
- retval = errno;
- if (retval != EAGAIN) {
- VLOG_DBG_RL(&rl, "accept: %s", ovs_strerror(retval));
- }
- return retval;
- }
-
- retval = set_nonblocking(new_fd);
- if (retval) {
- close(new_fd);
- return retval;
- }
-
- return ps->accept_cb(new_fd, &ss, ss_len, new_streamp);
-}
-
-static void
-pfd_wait(struct pstream *pstream)
-{
- struct fd_pstream *ps = fd_pstream_cast(pstream);
- poll_fd_wait(ps->fd, POLLIN);
-}
-
-static int
-pfd_set_dscp(struct pstream *pstream, uint8_t dscp)
-{
- struct fd_pstream *ps = fd_pstream_cast(pstream);
- if (ps->set_dscp_cb) {
- return ps->set_dscp_cb(ps->fd, dscp);
- }
- return 0;
-}
-
-static const struct pstream_class fd_pstream_class = {
- "pstream",
- false,
- NULL,
- pfd_close,
- pfd_accept,
- pfd_wait,
- pfd_set_dscp,
-};
-\f
-/* Helper functions. */
-static void
-maybe_unlink_and_free(char *path)
-{
- if (path) {
- fatal_signal_unlink_file_now(path);
- free(path);
- }
-}
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
+ *
+ * Note on windows platform, stream fd can only handle sockets, on unix any
+ * fd is acceptable.
*/
#ifndef STREAM_FD_H
static const struct stream_class *stream_classes[] = {
&tcp_stream_class,
-#ifdef AF_UNIX
+#ifndef _WIN32
&unix_stream_class,
#endif
#ifdef HAVE_OPENSSL
static const struct pstream_class *pstream_classes[] = {
&ptcp_pstream_class,
-#ifdef AF_UNIX
+#ifndef _WIN32
&punix_pstream_class,
#endif
#ifdef HAVE_OPENSSL
projects / cascardo / ovs.git / commitdiff