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node_type: improve documentation

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Steffen Vogel 2020-01-21 14:29:05 +01:00 • committed by Steffen Vogel
parent 18ebd41249
commit 5b3829b317
1 changed files with 25 additions and 12 deletions
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37
include/villas/node_type.h
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@ -43,7 +43,7 @@ enum class NodeFlags {
/** C++ like vtable construct for node_types */
struct node_type {
unsigned vectorize; /**< Maximal vector length supported by this node type. Zero is unlimited. */
unsigned vectorize; /**< Maximal vector length supported by this node type. Zero is unlimited. */
int flags;
enum State state; /**< State of this node-type. */
@ -57,7 +57,7 @@ struct node_type {
/** Global initialization per node type.
*
* This callback is invoked once per node-type.
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* @retval 0 Success. Everything went well.
* @retval <0 Error. Something went wrong.
@ -67,7 +67,7 @@ struct node_type {
/** Global de-initialization per node type.
*
* This callback is invoked once per node-type.
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* @retval 0 Success. Everything went well.
* @retval <0 Error. Something went wrong.
@ -76,6 +76,8 @@ struct node_type {
} type;
/** Initialize a new node instance.
*
* This callback is optional. It will only be called if non-null.
*
* @retval 0 Success. Everything went well.
* @retval <0 Error. Something went wrong.
@ -83,12 +85,16 @@ struct node_type {
int (*init)(struct node *n);
/** Free memory of an instance of this type.
*
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
*/
int (*destroy)(struct node *n);
/** Parse node connection details.
*
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
* @param cfg A JSON object containing the configuration of the node.
@ -99,7 +105,7 @@ struct node_type {
/** Check the current node configuration for plausability and errors.
*
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
* @retval 0 Success. Node configuration is good.
@ -110,6 +116,8 @@ struct node_type {
int (*prepare)(struct node *);
/** Returns a string with a textual represenation of this node.
*
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
* @return A pointer to a dynamically allocated string. Must be freed().
@ -117,6 +125,8 @@ struct node_type {
char * (*print)(struct node *n);
/** Start this node.
*
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
* @retval 0 Success. Everything went well.
@ -126,7 +136,7 @@ struct node_type {
/** Restart this node.
*
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
* @retval 0 Success. Everything went well.
@ -135,6 +145,8 @@ struct node_type {
int (*restart)(struct node *n);
/** Stop this node.
*
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
* @retval 0 Success. Everything went well.
@ -144,7 +156,7 @@ struct node_type {
/** Pause this node.
*
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
* @retval 0 Success. Everything went well.
@ -154,7 +166,7 @@ struct node_type {
/** Resume this node.
*
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
* @retval 0 Success. Everything went well.
@ -164,7 +176,7 @@ struct node_type {
/** Receive multiple messages at once.
*
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* Messages are received with a single recvmsg() syscall by
* using gathering techniques (struct iovec).
@ -182,7 +194,7 @@ struct node_type {
/** Send multiple messages in a single datagram / packet.
*
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* Messages are sent with a single sendmsg() syscall by
* using gathering techniques (struct iovec).
@ -199,7 +211,7 @@ struct node_type {
/** Reverse source and destination of a node.
*
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* @param n A pointer to the node object.
*/
@ -207,7 +219,7 @@ struct node_type {
/** Get list of file descriptors which can be used by poll/select to detect the availability of new data.
*
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* @return The number of file descriptors which have been put into \p fds.
*/
@ -215,7 +227,8 @@ struct node_type {
/** Get list of socket file descriptors for configuring network emulation.
*
* This callback is optional.
* This callback is optional. It will only be called if non-null.
*
* @return The number of file descriptors which have been put into \p sds.
*/
int (*netem_fds)(struct node *n, int sds[]);