test the big ydb lock with multiple put threads. closes #7

git-svn-id: file:///svn/tokudb@1697 c7de825b-a66e-492c-adef-691d508d4ae1

src/tests/Makefile

@@ -24,8 +24,9 @@ else
  UNSETTOKUENV=
  LIBEXT=so
  ifdef BDBDIR
-  BDB_LDFLAGS += -Wl,-rpath,$(BDBDIR)/lib -lpthread
+  BDB_LDFLAGS += -Wl,-rpath,$(BDBDIR)/lib
  endif
+ BDB_LDFLAGS += -lpthread
  TDB_LOADLIBES = -L../ -ldb -Wl,-rpath,.. -lpthread
  VGRIND=valgrind --quiet --error-exitcode=1 --leak-check=yes
 endif

src/tests/test_db_thread_insert.c

+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <assert.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <arpa/inet.h>
+#include <db.h>
+#include <pthread.h>
+#include "test.h"
+
+typedef unsigned int my_t;
+
+struct db_inserter {
+    pthread_t tid;
+    DB *db;
+    my_t startno, endno;
+};
+
+int db_put(DB *db, my_t k, my_t v) {
+    DBT key, val;
+    int r = db->put(db, 0, dbt_init(&key, &k, sizeof k), dbt_init(&val, &v, sizeof v), DB_YESOVERWRITE);
+    return r;
+}
+
+void *do_inserts(void *arg) {
+    struct db_inserter *mywork = (struct db_inserter *) arg;
+    printf("%lu:do_inserts:start:%d-%d\n", pthread_self(), mywork->startno, mywork->endno);
+    my_t i;
+    for (i=mywork->startno; i < mywork->endno; i++) {
+        int r = db_put(mywork->db, htonl(i), i); assert(r == 0);
+    }
+    
+    printf("%lu:do_inserts:end\n", pthread_self());
+    pthread_exit(0);
+    return 0;
+}
+
+int usage() {
+    fprintf(stderr, "test [-n NTUPLES] [-p NTHREADS]\n");
+    fprintf(stderr, "default NTUPLES=1000000\n");
+    fprintf(stderr, "default NTHREADS=2\n");
+    return 1;
+}
+
+int main(int argc, char *argv[]) {
+    const char *dbfile = "test.db";
+    const char *dbname = "main";
+    int nthreads = 2;
+    my_t n = 1000000;
+
+    system("rm -rf " DIR);
+    mkdir(DIR, 0777);
+
+    int i;
+    for (i=1; i<argc; i++) {
+        char *arg = argv[i];
+        if (0 == strcmp(arg, "-h") || 0 == strcmp(arg, "--help")) {
+            return usage();
+        }
+        if (0 == strcmp(arg, "-v") || 0 == strcmp(arg, "--verbose")) {
+            verbose = 1; 
+            continue;
+        }
+        if (0 == strcmp(arg, "-p")) {
+            if (i+1 >= argc) return usage();
+            nthreads = atoi(argv[++i]);
+            continue;
+        }
+        if (0 == strcmp(arg, "-n")) {
+            if (i+1 >= argc) return usage();
+            n = atoi(argv[++i]);
+            continue;
+        }
+    }
+
+    int r;
+    DB_ENV *env;
+
+    r = db_env_create(&env, 0); assert(r == 0);
+    r = env->set_cachesize(env, 0, 128000000, 1); assert(r == 0);
+    r = env->open(env, DIR, DB_CREATE + DB_THREAD + DB_PRIVATE + DB_INIT_MPOOL + DB_INIT_LOCK, 0777); assert(r == 0);
+
+    DB *db;
+
+    r = db_create(&db, env, 0); assert(r == 0);
+    r = db->open(db, 0, dbfile, dbname, DB_BTREE, DB_CREATE + DB_THREAD, 0777); assert(r == 0);
+
+    struct db_inserter work[nthreads];
+
+    for (i=0; i<nthreads; i++) {
+        work[i].db = db;
+        work[i].startno = i*n/nthreads;
+        work[i].endno = work[i].startno + n/nthreads;
+        if (i+1 == nthreads) 
+            work[i].endno = n;
+    }
+
+    for (i=0; i<nthreads; i++) {
+        r = pthread_create(&work[i].tid, 0, do_inserts, &work[i]); assert(r == 0);
+    }
+
+    for (i=0; i<nthreads; i++) {
+        void *ret;
+        r = pthread_join(work[i].tid, &ret); assert(r == 0);
+    }
+
+    r = db->close(db, 0); assert(r == 0);
+    r = env->close(env, 0); assert(r == 0);
+
+    return 0;
+}