Merge remote-tracking branch 'origin/mdb.RE/0.9'

This commit is contained in:
Quanah Gibson-Mount 2015-04-23 12:49:31 -05:00
commit bd1068204d
2 changed files with 20 additions and 1 deletions

View file

@ -6,6 +6,8 @@ LMDB 0.9.15 Release Engineering
Fix compact of empty env (ITS#7956)
Fix mdb_rebalance collapsing root (ITS#8062)
Fix mdb_load with large values (ITS#8066)
Fix to retry writes on EINTR (ITS#8106)
Fix mdb_cursor_del on empty DB (ITS#8109)
Added workaround for fdatasync bug in ext3fs
Build
Don't use -fPIC for static lib

View file

@ -3133,6 +3133,7 @@ mdb_page_flush(MDB_txn *txn, int keep)
/* Write up to MDB_COMMIT_PAGES dirty pages at a time. */
if (pos!=next_pos || n==MDB_COMMIT_PAGES || wsize+size>MAX_WRITE) {
if (n) {
retry_write:
/* Write previous page(s) */
#ifdef MDB_USE_PWRITEV
wres = pwritev(env->me_fd, iov, n, wpos);
@ -3140,8 +3141,11 @@ mdb_page_flush(MDB_txn *txn, int keep)
if (n == 1) {
wres = pwrite(env->me_fd, iov[0].iov_base, wsize, wpos);
} else {
retry_seek:
if (lseek(env->me_fd, wpos, SEEK_SET) == -1) {
rc = ErrCode();
if (rc == EINTR)
goto retry_seek;
DPRINTF(("lseek: %s", strerror(rc)));
return rc;
}
@ -3151,6 +3155,8 @@ mdb_page_flush(MDB_txn *txn, int keep)
if (wres != wsize) {
if (wres < 0) {
rc = ErrCode();
if (rc == EINTR)
goto retry_write;
DPRINTF(("Write error: %s", strerror(rc)));
} else {
rc = EIO; /* TODO: Use which error code? */
@ -3520,7 +3526,8 @@ mdb_env_init_meta(MDB_env *env, MDB_meta *meta)
int len;
#define DO_PWRITE(rc, fd, ptr, size, len, pos) do { \
len = pwrite(fd, ptr, size, pos); \
rc = (len >= 0); } while(0)
if (len == -1 && ErrCode() == EINTR) continue; \
rc = (len >= 0); break; } while(1)
#endif
DPUTS("writing new meta page");
@ -3625,6 +3632,7 @@ mdb_env_write_meta(MDB_txn *txn)
/* Write to the SYNC fd */
mfd = env->me_flags & (MDB_NOSYNC|MDB_NOMETASYNC) ?
env->me_fd : env->me_mfd;
retry_write:
#ifdef _WIN32
{
memset(&ov, 0, sizeof(ov));
@ -3637,6 +3645,8 @@ mdb_env_write_meta(MDB_txn *txn)
#endif
if (rc != len) {
rc = rc < 0 ? ErrCode() : EIO;
if (rc == EINTR)
goto retry_write;
DPUTS("write failed, disk error?");
/* On a failure, the pagecache still contains the new data.
* Write some old data back, to prevent it from being used.
@ -7835,6 +7845,13 @@ mdb_cursor_del0(MDB_cursor *mc)
MDB_cursor *m2, *m3;
MDB_dbi dbi = mc->mc_dbi;
/* DB is totally empty now, just bail out.
* Other cursors adjustments were already done
* by mdb_rebalance and aren't needed here.
*/
if (!mc->mc_snum)
return rc;
mp = mc->mc_pg[mc->mc_top];
nkeys = NUMKEYS(mp);