1 /* Java bindings of the file API. */
3 /* Copyright (c) 2012-2020. The SimGrid Team. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "jxbt_utilities.hpp"
10 #include <xbt/asserts.h>
12 void jfile_bind(JNIEnv *env, jobject jfile, msg_file_t fd) {
13 env->SetLongField(jfile, jfile_field_bind, reinterpret_cast<std::intptr_t>(fd));
16 msg_file_t jfile_get_native(JNIEnv *env, jobject jfile) {
17 return reinterpret_cast<msg_file_t>(env->GetLongField(jfile, jfile_field_bind));
20 JNIEXPORT void JNICALL Java_org_simgrid_msg_File_nativeInit(JNIEnv *env, jclass cls) {
21 jclass class_File = env->FindClass("org/simgrid/msg/File");
22 jfile_field_bind = jxbt_get_jfield(env , class_File, "bind", "J");
23 xbt_assert((jfile_field_bind != nullptr), "Can't find 'bind' field in File class.");
26 JNIEXPORT void JNICALL Java_org_simgrid_msg_File_open(JNIEnv *env, jobject jfile, jobject jpath) {
27 const char* path = env->GetStringUTFChars((jstring)jpath, nullptr);
28 sg_file_t file = sg_file_open(path, nullptr);
29 jfile_bind(env, jfile, file);
31 env->ReleaseStringUTFChars(static_cast<jstring>(jpath), path);
34 JNIEXPORT jlong JNICALL Java_org_simgrid_msg_File_read(JNIEnv *env, jobject jfile, jlong jsize) {
35 sg_file_t file = jfile_get_native(env, jfile);
36 return static_cast<jlong>(sg_file_read(file, static_cast<sg_size_t>(jsize)));
39 JNIEXPORT jlong JNICALL Java_org_simgrid_msg_File_write(JNIEnv *env, jobject jfile, jlong jsize) {
40 sg_file_t file = jfile_get_native(env, jfile);
41 return static_cast<jlong>(sg_file_write(file, static_cast<sg_size_t>(jsize)));
44 JNIEXPORT void JNICALL Java_org_simgrid_msg_File_seek(JNIEnv *env, jobject jfile, jlong offset, jlong origin) {
45 sg_file_t file = jfile_get_native(env, jfile);
46 sg_file_seek(file, static_cast<sg_offset_t>(offset), static_cast<int>(origin));
49 JNIEXPORT void JNICALL Java_org_simgrid_msg_File_close(JNIEnv *env, jobject jfile) {
50 const_sg_file_t file = jfile_get_native(env, jfile);
53 jfile_bind(env, jfile, nullptr);