void
flst_add_first(
/*===========*/
flst_base_node_t* base, /* in: pointer to base node of list */
flst_node_t* node, /* in: node to add */
mtr_t* mtr) /* in: mini-transaction handle */
{
ulint space;
fil_addr_t node_addr;
ulint len;
fil_addr_t first_addr;
flst_node_t* first_node;
ut_ad(mtr && base && node);
ut_ad(base != node);
ut_ad(mtr_memo_contains(mtr, buf_block_align(base),
MTR_MEMO_PAGE_X_FIX));
ut_ad(mtr_memo_contains(mtr, buf_block_align(node),
MTR_MEMO_PAGE_X_FIX));
len = flst_get_len(base, mtr);
first_addr = flst_get_first(base, mtr);
buf_ptr_get_fsp_addr(node, &space, &node_addr);
/* If the list is not empty, call flst_insert_before */
if (len != 0) {
if (first_addr.page == node_addr.page) {
first_node = buf_frame_align(node)
+ first_addr.boffset;
} else {
first_node = fut_get_ptr(space, first_addr,
RW_X_LATCH, mtr);
}
flst_insert_before(base, node, first_node, mtr);
} else {
/* else call flst_add_to_empty */
flst_add_to_empty(base, node, mtr);
}
}
/********************************************************************//**
Adds a node as the last node in a list. */
UNIV_INTERN
void
flst_add_last(
/*==========*/
flst_base_node_t* base, /*!< in: pointer to base node of list */
flst_node_t* node, /*!< in: node to add */
mtr_t* mtr) /*!< in: mini-transaction handle */
{
ulint space;
fil_addr_t node_addr;
ulint len;
fil_addr_t last_addr;
flst_node_t* last_node;
ut_ad(mtr && base && node);
ut_ad(base != node);
ut_ad(mtr_memo_contains_page(mtr, base, MTR_MEMO_PAGE_X_FIX));
ut_ad(mtr_memo_contains_page(mtr, node, MTR_MEMO_PAGE_X_FIX));
len = flst_get_len(base, mtr);
last_addr = flst_get_last(base, mtr);
buf_ptr_get_fsp_addr(node, &space, &node_addr);
/* If the list is not empty, call flst_insert_after */
if (len != 0) {
if (last_addr.page == node_addr.page) {
last_node = page_align(node) + last_addr.boffset;
} else {
ulint zip_size = fil_space_get_zip_size(space);
last_node = fut_get_ptr(space, zip_size, last_addr,
RW_X_LATCH, mtr);
}
flst_insert_after(base, last_node, node, mtr);
} else {
/* else call flst_add_to_empty */
flst_add_to_empty(base, node, mtr);
}
}
