Signed-off-by: Alejandro Colomar <colomar.6.4.3@xxxxxxxxx> --- man3/list.3 | 149 +++++++++++++++++++++++++++++++++++++++++++++++++++ man3/queue.3 | 149 --------------------------------------------------- 2 files changed, 149 insertions(+), 149 deletions(-) diff --git a/man3/list.3 b/man3/list.3 index 39c1d4b4d..3c25b3e55 100644 --- a/man3/list.3 +++ b/man3/list.3 @@ -102,6 +102,155 @@ The argument is the name of a user defined structure that must be declared using the macro .BR LIST_HEAD (). +.Ss Lists +A list is headed by a structure defined by the +.Nm LIST_HEAD +macro. +This structure contains a single pointer to the first element +on the list. +The elements are doubly linked so that an arbitrary element can be +removed without traversing the list. +New elements can be added to the list after an existing element, +before an existing element, or at the head of the list. +A +.Fa LIST_HEAD +structure is declared as follows: +.Bd -literal -offset indent +LIST_HEAD(HEADNAME, TYPE) head; +.Ed +.Pp +where +.Fa HEADNAME +is the name of the structure to be defined, and +.Fa TYPE +is the type of the elements to be linked into the list. +A pointer to the head of the list can later be declared as: +.Bd -literal -offset indent +struct HEADNAME *headp; +.Ed +.Pp +(The names +.Li head +and +.Li headp +are user selectable.) +.Pp +The macro +.Nm LIST_HEAD_INITIALIZER +evaluates to an initializer for the list +.Fa head . +.Pp +The macro +.Nm LIST_EMPTY +evaluates to true if there are no elements in the list. +.Pp +The macro +.Nm LIST_ENTRY +declares a structure that connects the elements in +the list. +.Pp +The macro +.Nm LIST_FIRST +returns the first element in the list or NULL if the list +is empty. +.Pp +The macro +.Nm LIST_FOREACH +traverses the list referenced by +.Fa head +in the forward direction, assigning each element in turn to +.Fa var . +.\" .Pp +.\" The macro +.\" .Nm LIST_FOREACH_FROM +.\" behaves identically to +.\" .Nm LIST_FOREACH +.\" when +.\" .Fa var +.\" is NULL, else it treats +.\" .Fa var +.\" as a previously found LIST element and begins the loop at +.\" .Fa var +.\" instead of the first element in the LIST referenced by +.\" .Fa head . +.\" .Pp +.\" The macro +.\" .Nm LIST_FOREACH_SAFE +.\" traverses the list referenced by +.\" .Fa head +.\" in the forward direction, assigning each element in turn to +.\" .Fa var . +.\" However, unlike +.\" .Fn LIST_FOREACH +.\" here it is permitted to both remove +.\" .Fa var +.\" as well as free it from within the loop safely without interfering with the +.\" traversal. +.\" .Pp +.\" The macro +.\" .Nm LIST_FOREACH_FROM_SAFE +.\" behaves identically to +.\" .Nm LIST_FOREACH_SAFE +.\" when +.\" .Fa var +.\" is NULL, else it treats +.\" .Fa var +.\" as a previously found LIST element and begins the loop at +.\" .Fa var +.\" instead of the first element in the LIST referenced by +.\" .Fa head . +.Pp +The macro +.Nm LIST_INIT +initializes the list referenced by +.Fa head . +.Pp +The macro +.Nm LIST_INSERT_HEAD +inserts the new element +.Fa elm +at the head of the list. +.Pp +The macro +.Nm LIST_INSERT_AFTER +inserts the new element +.Fa elm +after the element +.Fa listelm . +.Pp +The macro +.Nm LIST_INSERT_BEFORE +inserts the new element +.Fa elm +before the element +.Fa listelm . +.Pp +The macro +.Nm LIST_NEXT +returns the next element in the list, or NULL if this is the last. +.\" .Pp +.\" The macro +.\" .Nm LIST_PREV +.\" returns the previous element in the list, or NULL if this is the first. +.\" List +.\" .Fa head +.\" must contain element +.\" .Fa elm . +.Pp +The macro +.Nm LIST_REMOVE +removes the element +.Fa elm +from the list. +.\" .Pp +.\" The macro +.\" .Nm LIST_SWAP +.\" swaps the contents of +.\" .Fa head1 +.\" and +.\" .Fa head2 . +.Pp +See the EXAMPLES section below for an example program using a linked list. .SH RETURN VALUE .SH CONFORMING TO .SH BUGS diff --git a/man3/queue.3 b/man3/queue.3 index a3a2eb2b0..6ee793e25 100644 --- a/man3/queue.3 +++ b/man3/queue.3 @@ -689,155 +689,6 @@ from the tail queue. .Pp See the EXAMPLES section below for an example program using a singly-linked tail queue. -.Ss Lists -A list is headed by a structure defined by the -.Nm LIST_HEAD -macro. -This structure contains a single pointer to the first element -on the list. -The elements are doubly linked so that an arbitrary element can be -removed without traversing the list. -New elements can be added to the list after an existing element, -before an existing element, or at the head of the list. -A -.Fa LIST_HEAD -structure is declared as follows: -.Bd -literal -offset indent -LIST_HEAD(HEADNAME, TYPE) head; -.Ed -.Pp -where -.Fa HEADNAME -is the name of the structure to be defined, and -.Fa TYPE -is the type of the elements to be linked into the list. -A pointer to the head of the list can later be declared as: -.Bd -literal -offset indent -struct HEADNAME *headp; -.Ed -.Pp -(The names -.Li head -and -.Li headp -are user selectable.) -.Pp -The macro -.Nm LIST_HEAD_INITIALIZER -evaluates to an initializer for the list -.Fa head . -.Pp -The macro -.Nm LIST_EMPTY -evaluates to true if there are no elements in the list. -.Pp -The macro -.Nm LIST_ENTRY -declares a structure that connects the elements in -the list. -.Pp -The macro -.Nm LIST_FIRST -returns the first element in the list or NULL if the list -is empty. -.Pp -The macro -.Nm LIST_FOREACH -traverses the list referenced by -.Fa head -in the forward direction, assigning each element in turn to -.Fa var . -.\" .Pp -.\" The macro -.\" .Nm LIST_FOREACH_FROM -.\" behaves identically to -.\" .Nm LIST_FOREACH -.\" when -.\" .Fa var -.\" is NULL, else it treats -.\" .Fa var -.\" as a previously found LIST element and begins the loop at -.\" .Fa var -.\" instead of the first element in the LIST referenced by -.\" .Fa head . -.\" .Pp -.\" The macro -.\" .Nm LIST_FOREACH_SAFE -.\" traverses the list referenced by -.\" .Fa head -.\" in the forward direction, assigning each element in turn to -.\" .Fa var . -.\" However, unlike -.\" .Fn LIST_FOREACH -.\" here it is permitted to both remove -.\" .Fa var -.\" as well as free it from within the loop safely without interfering with the -.\" traversal. -.\" .Pp -.\" The macro -.\" .Nm LIST_FOREACH_FROM_SAFE -.\" behaves identically to -.\" .Nm LIST_FOREACH_SAFE -.\" when -.\" .Fa var -.\" is NULL, else it treats -.\" .Fa var -.\" as a previously found LIST element and begins the loop at -.\" .Fa var -.\" instead of the first element in the LIST referenced by -.\" .Fa head . -.Pp -The macro -.Nm LIST_INIT -initializes the list referenced by -.Fa head . -.Pp -The macro -.Nm LIST_INSERT_HEAD -inserts the new element -.Fa elm -at the head of the list. -.Pp -The macro -.Nm LIST_INSERT_AFTER -inserts the new element -.Fa elm -after the element -.Fa listelm . -.Pp -The macro -.Nm LIST_INSERT_BEFORE -inserts the new element -.Fa elm -before the element -.Fa listelm . -.Pp -The macro -.Nm LIST_NEXT -returns the next element in the list, or NULL if this is the last. -.\" .Pp -.\" The macro -.\" .Nm LIST_PREV -.\" returns the previous element in the list, or NULL if this is the first. -.\" List -.\" .Fa head -.\" must contain element -.\" .Fa elm . -.Pp -The macro -.Nm LIST_REMOVE -removes the element -.Fa elm -from the list. -.\" .Pp -.\" The macro -.\" .Nm LIST_SWAP -.\" swaps the contents of -.\" .Fa head1 -.\" and -.\" .Fa head2 . -.Pp -See the EXAMPLES section below for an example program using a linked list. .Ss Tail queues A tail queue is headed by a structure defined by the .Nm TAILQ_HEAD -- 2.28.0
