*/
typedef void (*channel_poll_cb_t)(mesh *mesh, channel *channel, size_t len);
-/// A callback for cleaning up buffers submitted for asynchronous I/O.
-/** This callbacks signals that MeshLink has finished using this buffer.
- * The ownership of the buffer is now back into the application's hands.
- *
- * @param mesh A handle which represents an instance of MeshLink.
- * @param channel A handle for the channel which used this buffer.
- * @param data A pointer to a buffer containing the enqueued data.
- * @param len The length of the buffer.
- * @param priv A private pointer which was set by the application when submitting the buffer.
- */
-typedef void (*aio_cb_t)(mesh *mesh, channel *channel, const void *data, size_t len, void *priv);
-
-/// A callback for asynchronous I/O to and from filedescriptors.
-/** This callbacks signals that MeshLink has finished using this filedescriptor.
- *
- * @param mesh A handle which represents an instance of MeshLink.
- * @param channel A handle for the channel which used this filedescriptor.
- * @param fd The filedescriptor that was used.
- * @param len The length of the data that was successfully sent or received.
- * @param priv A private pointer which was set by the application when submitting the buffer.
- */
-typedef void (*aio_fd_cb_t)(mesh *mesh, channel *channel, int fd, size_t len, void *priv);
-
/// A class describing a MeshLink node.
class node: public meshlink_node_t {
};
return meshlink_forget_node(handle, node);
}
- /// Set the poll callback.
- /** This functions sets the callback that is called whenever data can be sent to another node.
- * The callback is run in MeshLink's own thread.
- * It is therefore important that the callback uses apprioriate methods (queues, pipes, locking, etc.)
- * to pass data to or from the application's thread.
- * The callback should also not block itself and return as quickly as possible.
- *
- * @param channel A handle for the channel.
- * @param cb A pointer to the function which will be called when data can be sent to another node.
- * If a NULL pointer is given, the callback will be disabled.
- */
- void set_channel_poll_cb(channel *channel, channel_poll_cb_t cb) {
- meshlink_set_channel_poll_cb(handle, channel, (meshlink_channel_poll_cb_t)cb);
- }
-
/// Set the send buffer size of a channel.
/** This function sets the desired size of the send buffer.
* The default size is 128 kB.
*/
channel *channel_open(node *node, uint16_t port, channel_receive_cb_t cb, const void *data, size_t len, uint32_t flags = channel::TCP) {
channel *ch = (channel *)meshlink_channel_open_ex(handle, node, port, (meshlink_channel_receive_cb_t)cb, data, len, flags);
- meshlink_set_channel_poll_cb(handle, ch, &channel_poll_trampoline);
return ch;
}
*/
channel *channel_open(node *node, uint16_t port, const void *data, size_t len, uint32_t flags = channel::TCP) {
channel *ch = (channel *)meshlink_channel_open_ex(handle, node, port, &channel_receive_trampoline, data, len, flags);
- meshlink_set_channel_poll_cb(handle, ch, &channel_poll_trampoline);
return ch;
}
return meshlink_channel_send(handle, channel, data, len);
}
- /// Transmit data on a channel asynchronously
- /** This registers a buffer that will be used to send data to the remote node.
- * Multiple buffers can be registered, in which case data will be sent in the order the buffers were registered.
- * While there are still buffers with unsent data, the poll callback will not be called.
- *
- * @param channel A handle for the channel.
- * @param data A pointer to a buffer containing data sent by the source, or NULL if there is no data to send.
- * After meshlink_channel_aio_send() returns, the buffer may not be modified or freed by the application
- * until the callback routine is called.
- * @param len The length of the data, or 0 if there is no data to send.
- * @param cb A pointer to the function which will be called when MeshLink has finished using the buffer.
- * @param priv A private pointer which was set by the application when submitting the buffer.
- *
- * @return True if the buffer was enqueued, false otherwise.
- */
- bool channel_aio_send(channel *channel, const void *data, size_t len, meshlink_aio_cb_t cb, void *priv) {
- return meshlink_channel_aio_send(handle, channel, data, len, cb, priv);
- }
-
- /// Transmit data on a channel asynchronously from a filedescriptor
- /** This will read up to the specified length number of bytes from the given filedescriptor, and send it over the channel.
- * The callback may be returned early if there is an error reading from the filedescriptor.
- * While there is still with unsent data, the poll callback will not be called.
- *
- * @param channel A handle for the channel.
- * @param fd A file descriptor from which data will be read.
- * @param len The length of the data, or 0 if there is no data to send.
- * @param cb A pointer to the function which will be called when MeshLink has finished using the filedescriptor.
- * @param priv A private pointer which was set by the application when submitting the buffer.
- *
- * @return True if the buffer was enqueued, false otherwise.
- */
- bool channel_aio_fd_send(channel *channel, int fd, size_t len, meshlink_aio_fd_cb_t cb, void *priv) {
- return meshlink_channel_aio_fd_send(handle, channel, fd, len, cb, priv);
- }
-
- /// Receive data on a channel asynchronously
- /** This registers a buffer that will be filled with incoming channel data.
- * Multiple buffers can be registered, in which case data will be received in the order the buffers were registered.
- * While there are still buffers that have not been filled, the receive callback will not be called.
- *
- * @param channel A handle for the channel.
- * @param data A pointer to a buffer that will be filled with incoming data.
- * After meshlink_channel_aio_receive() returns, the buffer may not be modified or freed by the application
- * until the callback routine is called.
- * @param len The length of the data.
- * @param cb A pointer to the function which will be called when MeshLink has finished using the buffer.
- * @param priv A private pointer which was set by the application when submitting the buffer.
- *
- * @return True if the buffer was enqueued, false otherwise.
- */
- bool channel_aio_receive(channel *channel, const void *data, size_t len, meshlink_aio_cb_t cb, void *priv) {
- return meshlink_channel_aio_receive(handle, channel, data, len, cb, priv);
- }
-
- /// Receive data on a channel asynchronously and send it to a filedescriptor
- /** This will read up to the specified length number of bytes from the channel, and send it to the filedescriptor.
- * The callback may be returned early if there is an error writing to the filedescriptor.
- * While there is still unread data, the receive callback will not be called.
- *
- * @param channel A handle for the channel.
- * @param fd A file descriptor to which data will be written.
- * @param len The length of the data.
- * @param cb A pointer to the function which will be called when MeshLink has finished using the filedescriptor.
- * @param priv A private pointer which was set by the application when submitting the buffer.
- *
- * @return True if the buffer was enqueued, false otherwise.
- */
- bool channel_aio_fd_receive(channel *channel, int fd, size_t len, meshlink_aio_fd_cb_t cb, void *priv) {
- return meshlink_channel_aio_fd_receive(handle, channel, fd, len, cb, priv);
- }
-
/// Get the amount of bytes in the send buffer.
/** This returns the amount of bytes in the send buffer.
* These bytes have not been received by the peer yet.
if(accepted) {
meshlink_set_channel_receive_cb(handle, channel, &channel_receive_trampoline);
- meshlink_set_channel_poll_cb(handle, channel, &channel_poll_trampoline);
}
return accepted;
projects / meshlink-tiny / blobdiff