mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-02-01 19:41:47 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

refs #5730, make cachefiles list a doubly linked list for more efficient close, helps shutdown

Browse source 
git-svn-id: file:///svn/toku/tokudb@50881 c7de825b-a66e-492c-adef-691d508d4ae1
This commit is contained in:
Zardosht Kasheff 2013-04-17 00:01:22 -04:00 • committed by Yoni Fogel
parent 5a95388095
commit d605f812fb
2 changed files with 13 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
ft/cachetable-internal.h
View file

@ -94,6 +94,7 @@ class pair_list;
//
struct cachefile {
CACHEFILE next;
CACHEFILE prev;
bool for_checkpoint; //True if part of the in-progress checkpoint
// If set and the cachefile closes, the file will be removed.

21
ft/cachetable.cc
View file

@ -353,6 +353,10 @@ int toku_cachetable_openfd_with_filenum (CACHEFILE *cfptr, CACHETABLE ct, int fd
newcf->filenum = filenum;
cachefile_init_filenum(newcf, fd, fname_in_env, fileid);
newcf->next = ct->cf_list.m_head;
newcf->prev = NULL;
if (ct->cf_list.m_head) {
ct->cf_list.m_head->prev = newcf;
}
ct->cf_list.m_head = newcf;
bjm_init(&newcf->bjm);
@ -425,16 +429,15 @@ static void remove_cf_from_cachefiles_list (CACHEFILE cf) {
CACHETABLE ct = cf->cachetable;
ct->cf_list.write_lock();
invariant(ct->cf_list.m_head != NULL);
if (cf == ct->cf_list.m_head) {
ct->cf_list.m_head = cf->next;
if (cf->next) {
cf->next->prev = cf->prev;
}
else {
CACHEFILE curr_cf = ct->cf_list.m_head;
while (curr_cf->next != cf) {
curr_cf = curr_cf->next;
}
// at this point, curr_cf->next is pointing to cf
curr_cf->next = cf->next;
if (cf->prev) {
cf->prev->next = cf->next;
}
if (cf == ct->cf_list.m_head) {
invariant(cf->prev == NULL);
ct->cf_list.m_head = cf->next;
}
ct->cf_list.write_unlock();
}