summaryrefslogtreecommitdiff
path: root/dependencies/uthash/tests/threads/test2.c
diff options
context:
space:
mode:
Diffstat (limited to 'dependencies/uthash/tests/threads/test2.c')
-rw-r--r--dependencies/uthash/tests/threads/test2.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/dependencies/uthash/tests/threads/test2.c b/dependencies/uthash/tests/threads/test2.c
new file mode 100644
index 000000000..316b7e699
--- /dev/null
+++ b/dependencies/uthash/tests/threads/test2.c
@@ -0,0 +1,75 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include "uthash.h"
+
+#undef uthash_noexpand_fyi
+#define uthash_noexpand_fyi(tbl) fprintf(stderr,"warning: bucket expansion inhibited\n");
+
+#define LOOPS 100000
+#define NTHREADS 2
+
+typedef struct {
+ int i;
+ int v;
+ UT_hash_handle hh;
+} elt;
+
+elt *elts=NULL; /* this is our hash table which two threads will use */
+pthread_rwlock_t lock;
+
+void *thread_routine( void *arg ) {
+ int keepgoing=0;
+ /* TODO write me */
+ return NULL;
+}
+
+int main() {
+ unsigned i;
+ long num_added=0;
+ int status;
+ pthread_t thread[NTHREADS];
+ void *thread_result;
+ elt tmp, *e;
+
+ if (pthread_rwlock_init(&lock,NULL) != 0) {
+ fprintf(stderr,"lock init failed\n");
+ exit(-1);
+ }
+
+ /* populate it to start */
+ for(i=0; i<LOOPS; i++) {
+ e = malloc(sizeof(elt));
+ if (!e) exit(-1);
+ e->i = i;
+ e->v = 0;
+ HASH_ADD_INT(elts, i, e);
+ }
+
+ for(i=0; i<NTHREADS; i++) {
+ if (( status = pthread_create( &thread[i], NULL, thread_routine, NULL) )) {
+ printf("failure: status %d\n", status);
+ exit(-1);
+ }
+ }
+
+ for(i=0; i<NTHREADS; i++) {
+ status = pthread_join( thread[i], &thread_result );
+ printf("thread result: %d %ld\n", status, (long)thread_result);
+ }
+
+ i = HASH_COUNT(elts);
+ printf("final count of items in hash: %u\n", i);
+
+ if (pthread_rwlock_destroy(&lock) != 0) {
+ fprintf(stderr,"lock destroy failed\n");
+ exit(-1);
+ }
+}