/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
+#include <xbt/sysdep.h>
+
#include "jmsg_rngstream.h"
#include "jxbt_utilities.h"
JNIEXPORT jboolean JNICALL
Java_org_simgrid_msg_RngStream_setPackageSeed(JNIEnv *env, jobject jrngstream, jintArray jseed) {
- jint buffer[6];
-
- env->GetIntArrayRegion(jseed, 0, 6, buffer);
- RngStream rngstream = jrngstream_to_native(env, jrngstream);
- if (!rngstream)
+ if (jseed == nullptr) {
+ jxbt_throw_null(env, xbt_strdup("seed argument is null"));
return JNI_FALSE;
+ }
- int result = RngStream_SetPackageSeed((unsigned long*)buffer);
+ jint buffer[6];
+ env->GetIntArrayRegion(jseed, 0, 6, buffer);
+ // The C API expects unsigned long which are wider than int on LP64.
+ // We need to convert:
+ unsigned long seed[6];
+ for (int i = 0; i != 6; ++i)
+ seed[i] = buffer[i];
+
+ int result = RngStream_SetPackageSeed(seed);
return result == -1 ? JNI_FALSE : JNI_TRUE;
}
if (!rngstream)
return JNI_FALSE;
- int result = RngStream_SetSeed(rngstream, (unsigned long*)buffer);
+ // The C API expects unsigned long which are wider than int on LP64.
+ // We need to convert:
+ unsigned long seed[6];
+ for (int i = 0; i != 6; ++i)
+ seed[i] = buffer[i];
+
+ int result = RngStream_SetSeed(rngstream, seed);
return result == -1 ? JNI_FALSE : JNI_TRUE;
}