From 9705032618217991c88c135b8229bcc84197dd7c Mon Sep 17 00:00:00 2001 From: hyc Date: Mon, 2 Apr 2018 18:01:19 +0100 Subject: [PATCH 1/2] ITS#8831 move flag init into readhdr Avoid stomping on flags from 1st readhdr invocation --- external/db_drivers/liblmdb/mdb_load.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/external/db_drivers/liblmdb/mdb_load.c b/external/db_drivers/liblmdb/mdb_load.c index 797c2f979..58a663fda 100644 --- a/external/db_drivers/liblmdb/mdb_load.c +++ b/external/db_drivers/liblmdb/mdb_load.c @@ -78,6 +78,7 @@ static void readhdr(void) { char *ptr; + flags = 0; while (fgets(dbuf.mv_data, dbuf.mv_size, stdin) != NULL) { lineno++; if (!strncmp(dbuf.mv_data, "VERSION=", STRLENOF("VERSION="))) { @@ -397,7 +398,6 @@ int main(int argc, char *argv[]) while(!Eof) { MDB_val key, data; int batch = 0; - flags = 0; int appflag; if (!dohdr) { From 18cd6837b632dda74c7b2f8da4a5ce188a3cb235 Mon Sep 17 00:00:00 2001 From: hyc Date: Tue, 8 May 2018 06:14:39 +0100 Subject: [PATCH 2/2] Fix mdb_load append option Use MDB_CURRENT to avoid seeking to new key when appending DUPs. Reinit cursor on new batch, if appending DUPs. --- external/db_drivers/liblmdb/mdb.c | 4 ++-- external/db_drivers/liblmdb/mdb_load.c | 10 +++++++--- 2 files changed, 9 insertions(+), 5 deletions(-) diff --git a/external/db_drivers/liblmdb/mdb.c b/external/db_drivers/liblmdb/mdb.c index dde428c43..8e2b1eca1 100644 --- a/external/db_drivers/liblmdb/mdb.c +++ b/external/db_drivers/liblmdb/mdb.c @@ -7231,7 +7231,7 @@ mdb_cursor_put(MDB_cursor *mc, MDB_val *key, MDB_val *data, dkey.mv_size = 0; - if (flags == MDB_CURRENT) { + if (flags & MDB_CURRENT) { if (!(mc->mc_flags & C_INITIALIZED)) return EINVAL; rc = MDB_SUCCESS; @@ -7624,7 +7624,7 @@ put_sub: xdata.mv_size = 0; xdata.mv_data = ""; leaf = NODEPTR(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top]); - if (flags & MDB_CURRENT) { + if (flags == MDB_CURRENT) { xflags = MDB_CURRENT|MDB_NOSPILL; } else { mdb_xcursor_init1(mc, leaf); diff --git a/external/db_drivers/liblmdb/mdb_load.c b/external/db_drivers/liblmdb/mdb_load.c index 58a663fda..c74ce81c9 100644 --- a/external/db_drivers/liblmdb/mdb_load.c +++ b/external/db_drivers/liblmdb/mdb_load.c @@ -304,7 +304,7 @@ int main(int argc, char *argv[]) MDB_cursor *mc; MDB_dbi dbi; char *envname; - int envflags = 0, putflags = 0; + int envflags = MDB_NOSYNC, putflags = 0; int dohdr = 0, append = 0; MDB_val prevk; @@ -392,7 +392,6 @@ int main(int argc, char *argv[]) kbuf.mv_data = malloc(kbuf.mv_size * 2); k0buf.mv_size = kbuf.mv_size; k0buf.mv_data = (char *)kbuf.mv_data + kbuf.mv_size; - prevk.mv_size = 0; prevk.mv_data = k0buf.mv_data; while(!Eof) { @@ -416,6 +415,7 @@ int main(int argc, char *argv[]) fprintf(stderr, "mdb_open failed, error %d %s\n", rc, mdb_strerror(rc)); goto txn_abort; } + prevk.mv_size = 0; if (append) { mdb_set_compare(txn, dbi, greater); if (flags & MDB_DUPSORT) @@ -443,7 +443,7 @@ int main(int argc, char *argv[]) appflag = MDB_APPEND; if (flags & MDB_DUPSORT) { if (prevk.mv_size == key.mv_size && !memcmp(prevk.mv_data, key.mv_data, key.mv_size)) - appflag = MDB_APPENDDUP; + appflag = MDB_CURRENT|MDB_APPENDDUP; else { memcpy(prevk.mv_data, key.mv_data, key.mv_size); prevk.mv_size = key.mv_size; @@ -477,6 +477,10 @@ int main(int argc, char *argv[]) fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc)); goto txn_abort; } + if (appflag & MDB_APPENDDUP) { + MDB_val k, d; + mdb_cursor_get(mc, &k, &d, MDB_LAST); + } batch = 0; } }