JNIEXPORT void JNICALL Java_jtux_UClock_nanosleep(JNIEnv *env, jclass obj,
jobject nsecs, jobject remain)
{
jclass cls_timespec = (*env)->FindClass(env, "jtux/UProcess$s_timespec");
struct timespec nsecs_c, remain_buf, *remain_c = &remain_buf;
int r;
long sec;
if (remain == NULL)
remain_c = NULL;
if (!field_jtoc_long(env, cls_timespec, "tv_sec", nsecs, &sec))
return;
nsecs_c.tv_sec = (time_t)sec;
if (!field_jtoc_long(env, cls_timespec, "tv_nsec", nsecs, &nsecs_c.tv_nsec))
return;
r = nanosleep(&nsecs_c, remain_c);
if (r != 0 && remain_c != NULL) {
if (!field_ctoj_long(env, cls_timespec, "tv_sec", remain, remain_c->tv_sec))
return;
if (!field_ctoj_long(env, cls_timespec, "tv_nsec", remain, remain_c->tv_nsec))
return;
}
if (r == -1)
JTHROW_neg1(-1);
}
static bool field_jtoc_perm(JNIEnv *env, jclass cls, const char *field, jobject obj,
struct ipc_perm *perm)
{
jfieldID fid;
jclass clsperm = (*env)->FindClass(env, "jtux/USysVIPC$s_ipc_perm");
jobject objperm;
int mode;
if (cls == NULL || clsperm == NULL)
return false;
if ((fid = (*env)->GetFieldID(env, cls, field, "Ljtux/USysVIPC$s_ipc_perm;")) == NULL)
return false;
if ((objperm = (*env)->GetObjectField(env, obj, fid)) == NULL) {
JNU_ThrowByName(env, "NullPointerException", "s_ipc_perm field not initialized");
return false;
}
if (!field_jtoc_long(env, clsperm, "uid", objperm, &perm->uid))
return false;
if (!field_jtoc_long(env, clsperm, "gid", objperm, &perm->gid))
return false;
if (!field_jtoc_long(env, clsperm, "cuid", objperm, &perm->cuid))
return false;
if (!field_jtoc_long(env, clsperm, "cgid", objperm, &perm->cgid))
return false;
if (!field_jtoc_int(env, clsperm, "mode", objperm, &mode))
return false;
perm->mode = mode;
return true;
}
