ISAR/libmdbx
3
0
Fork 0
mirror of https://github.com/isar/libmdbx.git synced 2025-11-07 07:18:56 +08:00
Code Issues Packages Projects Releases Wiki Activity

lmdb-test: workaround for MDB_FIXEDMAP to avoid sporadic failures.

Browse Source 
Change-Id: I6ba993ff50956d328fd76326c67aa83dff20ce48
This commit is contained in:
Leo Yuriev
2015-08-23 15:20:01 +03:00
parent 537fc0fe1a
commit 6a3efb82eb
9 changed files with 170 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
mtest1.c
View File

@@ -23,6 +23,9 @@
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <sys/stat.h>
#include "lmdb.h"
#define E(expr) CHECK((rc = (expr)) == MDB_SUCCESS, #expr)
@@ -30,6 +33,10 @@
#define CHECK(test, msg) ((test) ? (void)0 : ((void)fprintf(stderr, \
"%s:%d: %s: %s\n", __FILE__, __LINE__, msg, mdb_strerror(rc)), abort()))
#ifndef DBPATH
# define DBPATH "./testdb"
#endif
int main(int argc,char * argv[])
{
int i = 0, j = 0, rc;
@@ -42,6 +49,8 @@ int main(int argc,char * argv[])
int count;
int *values;
char sval[32] = "";
int env_oflags;
struct stat db_stat, exe_stat;
srand(time(NULL));
@@ -53,11 +62,25 @@ int main(int argc,char * argv[])
}
E(mdb_env_create(&env));
E(mdb_env_set_maxreaders(env, 1));
E(mdb_env_set_mapsize(env, 10485760));
E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(stat("/proc/self/exe", &exe_stat)?errno:0);
E(stat(DBPATH "/.", &db_stat)?errno:0);
env_oflags = MDB_FIXEDMAP | MDB_NOSYNC;
if (major(db_stat.st_dev) != major(exe_stat.st_dev)) {
/* LY: Assume running inside a CI-environment:
* 1) don't use FIXEDMAP to avoid EBUSY in case collision,
* which could be inspired by address space randomisation feature.
* 2) drop MDB_NOSYNC expecting that DBPATH is at a tmpfs or some dedicated storage.
*/
env_oflags = 0;
}
/* LY: especially here we always needs MDB_NOSYNC
* for testing mdb_env_close_ex() and "redo-to-steady" on open. */
env_oflags |= MDB_NOSYNC;
E(mdb_env_open(env, DBPATH, env_oflags, 0664));
E(mdb_txn_begin(env, NULL, 0, &txn));
if (mdb_dbi_open(txn, "id1", MDB_CREATE, &dbi) == MDB_SUCCESS)
@@ -144,7 +167,7 @@ int main(int argc,char * argv[])
mdb_env_close_ex(env, 1);
E(mdb_env_create(&env));
E(mdb_env_set_maxdbs(env, 4));
E(mdb_env_open(env, "./testdb", MDB_FIXEDMAP|MDB_NOSYNC, 0664));
E(mdb_env_open(env, DBPATH, env_oflags, 0664));
printf("check-preset-c.cursor-next\n");
E(mdb_env_stat(env, &mst));