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/*
simple_lock_test.c
Initializes two contexts in two different threads and tries to get read locks on both at the same time.
Hangs at line 24.
*/
#include <stdio.h>
#include <stdarg.h>
#include "test_ccapi_log.h"
#if defined(macintosh) || (defined(__MACH__) && defined(__APPLE__))
#include <TargetConditionals.h>
#endif
#ifdef TARGET_OS_MAC
#include <stdlib.h>
#include <pthread.h>
#include <Kerberos/CredentialsCache.h>
#else
#include "CredentialsCache.h"
#endif
void *other_thread (void) {
cc_int32 err;
cc_context_t context = NULL;
err = cc_initialize(&context, ccapi_version_7, NULL, NULL);
log_error("thread: attempting lock. may hang. err == %d", err);
if (!err) {
// hangs with cc_lock_read which should succeed immediately, but does not hang with write, upgrade, and downgrade, which fail immediately
err = cc_context_lock(context, cc_lock_read, cc_lock_noblock);
}
if (context) {
cc_context_unlock(context);
cc_context_release(context);
context = NULL;
}
log_error("thread: return. err == %d", err);
}
int main (int argc, char *argv[]) {
cc_int32 err;
int status;
cc_context_t context = NULL;
#ifdef TARGET_OS_MAC
pthread_t thread_id;
#endif
err = cc_initialize(&context, ccapi_version_7, NULL, NULL);
if (!err) {
err = cc_context_lock(context, cc_lock_read, cc_lock_noblock);
}
log_error("main: initialized and read locked context. err == %d", err);
#ifdef TARGET_OS_MAC
status = pthread_create (&thread_id, NULL, (void *) other_thread, NULL);
if (status != 0) {
log_error("pthread_create() returned %d", status);
exit(-1);
}
pthread_join(thread_id, NULL);
#else
#endif
log_error("main: unlocking and releasing context. err == %d", err);
if (context) {
log_error("main: calling cc_context_unlock");
cc_context_unlock(context);
log_error("main: calling cc_context_release");
cc_context_release(context);
context = NULL;
}
log_error("main: return. err == %d", err);
#if defined(_WIN32)
UNREFERENCED_PARAMETER(status); // no whining!
#endif
return 0;
}
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