1 /* nat/Runtime.c - java/lang/Runtime
3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
4 R. Grafl, A. Krall, C. Kruegel, C. Oates, R. Obermaisser,
5 M. Probst, S. Ring, E. Steiner, C. Thalinger, D. Thuernbeck,
6 P. Tomsich, J. Wenninger
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
25 Contact: cacao@complang.tuwien.ac.at
27 Authors: Roman Obermaiser
29 Changes: Joseph Wenninger
32 $Id: VMRuntime.c 1344 2004-07-21 17:12:53Z twisti $
40 #include <sys/utsname.h>
44 #include "exceptions.h"
50 #include "toolbox/logging.h"
51 #include "toolbox/memory.h"
52 #include "java_io_File.h"
53 #include "java_lang_String.h"
54 #include "java_lang_Process.h"
55 #include "java_util_Properties.h" /* needed for java_lang_Runtime.h */
56 #include "java_lang_VMRuntime.h"
61 /* should we run all finalizers on exit? */
62 static s4 finalizeOnExit = false;
65 static bool shouldFinalizersBeRunOnExit=false;
66 static int activeprops = 19;
68 static char *proplist[MAXPROPS][2] = {
69 { "java.class.path", NULL },
70 { "java.home", NULL },
71 { "user.home", NULL },
72 { "user.name", NULL },
77 { "os.version", NULL },
79 { "java.class.version", "45.3" },
80 { "java.version", PACKAGE":"VERSION },
81 { "java.vendor", "CACAO Team" },
82 { "java.vendor.url", "http://www.complang.tuwien.ac.at/java/cacao/" },
83 { "java.vm.name", "CACAO"},
84 { "java.tmpdir", "/tmp/"},
85 { "java.io.tmpdir", "/tmp/"},
87 { "path.separator", ":" },
88 { "file.separator", "/" },
89 { "line.separator", "\n" },
90 { "java.protocol.handler.pkgs", "gnu.java.net.protocol"}
93 void attach_property(char *name, char *value)
95 if (activeprops >= MAXPROPS) panic("Too many properties defined");
96 proplist[activeprops][0] = name;
97 proplist[activeprops][1] = value;
101 * Class: java_lang_VMRuntime
102 * Method: execInternal
103 * Signature: ([Ljava/lang/String;[Ljava/lang/String;Ljava/io/File;)Ljava/lang/Process;
105 JNIEXPORT java_lang_Process* JNICALL Java_java_lang_VMRuntime_execInternal(JNIEnv *env, jclass clazz, java_objectarray *cmd, java_objectarray *shellenv, java_io_File *workingdir)
107 log_text("Java_java_lang_Runtime_execInternal called");
114 * Class: java/lang/VMRuntime
115 * Method: exitInternal
118 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_exit(JNIEnv *env, jclass clazz, s4 par1)
123 cacao_shutdown(par1);
128 * Class: java/lang/Runtime
132 JNIEXPORT s8 JNICALL Java_java_lang_VMRuntime_freeMemory(JNIEnv *env, jclass clazz)
134 return gc_get_free_bytes();
139 * Class: java/lang/Runtime
143 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_gc(JNIEnv *env, jclass clazz)
150 * Class: java/lang/Runtime
151 * Method: runFinalization
154 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_runFinalization(JNIEnv *env, jclass clazz)
156 gc_invoke_finalizers();
161 * Class: java/lang/Runtime
162 * Method: runFinalizersOnExit
165 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_runFinalizersOnExit(JNIEnv *env, jclass clazz, s4 par1)
170 shouldFinalizersBeRunOnExit=par1;
174 * Class: java/lang/Runtime
175 * Method: runFinalizationsForExit
178 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_runFinalizationForExit(JNIEnv *env, jclass clazz)
180 if (shouldFinalizersBeRunOnExit) {
182 // gc_finalize_all();
184 log_text("Java_java_lang_VMRuntime_runFinalizationForExit called");
190 * Class: java/lang/Runtime
191 * Method: totalMemory
194 JNIEXPORT s8 JNICALL Java_java_lang_VMRuntime_totalMemory(JNIEnv *env, jclass clazz)
196 return gc_get_heap_size();
201 * Class: java/lang/Runtime
202 * Method: traceInstructions
205 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_traceInstructions(JNIEnv *env, jclass clazz, s4 par1)
212 * Class: java/lang/Runtime
213 * Method: traceMethodCalls
216 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_traceMethodCalls(JNIEnv *env, jclass clazz, s4 par1)
223 * Class: java_lang_Runtime
224 * Method: availableProcessors
227 JNIEXPORT s4 JNICALL Java_java_lang_VMRuntime_availableProcessors(JNIEnv *env, jclass clazz)
229 #if defined(_SC_NPROC_ONLN)
230 return (s4) sysconf(_SC_NPROC_ONLN);
232 #elif defined(_SC_NPROCESSORS_ONLN)
233 return (s4) sysconf(_SC_NPROCESSORS_ONLN);
242 * Class: java_lang_Runtime
244 * Signature: (Ljava/lang/String;)I
246 JNIEXPORT s4 JNICALL Java_java_lang_VMRuntime_nativeLoad(JNIEnv *env, jclass clazz, java_lang_String *par1)
253 data = javastring_toutf(par1, 0);
256 log_text("nativeLoad: Error: empty string");
260 buffer_len = utf_strlen(data) + 40;
263 buffer = MNEW(char, buffer_len);
265 strcpy(buffer, "Java_java_lang_VMRuntime_nativeLoad:");
266 utf_sprint(buffer + strlen((char *) data), data);
269 MFREE(buffer, char, buffer_len);
271 log_text("Java_java_lang_VMRuntime_nativeLoad");
278 * Class: java_lang_VMRuntime
279 * Method: nativeGetLibname
280 * Signature: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
282 JNIEXPORT java_lang_String* JNICALL Java_java_lang_VMRuntime_nativeGetLibname(JNIEnv *env, jclass clazz, java_lang_String *par1, java_lang_String *par2)
287 java_lang_String *resultString;
288 data = javastring_toutf(par2, 0);
291 log_text("nativeGetLibName: Error: empty string");
295 buffer_len = utf_strlen(data) + 6/*lib .so*/ +1 /*0*/;
296 buffer = MNEW(char, buffer_len);
297 sprintf(buffer,"lib");
298 utf_sprint(buffer+3,data);
299 strcat(buffer,".so");
303 resultString=javastring_new_char(buffer);
305 MFREE(buffer, char, buffer_len);
312 * Class: java_lang_VMRuntime
313 * Method: insertSystemProperties
314 * Signature: (Ljava/util/Properties;)V
316 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_insertSystemProperties(JNIEnv *env, jclass clazz, java_util_Properties *p)
319 #define BUFFERSIZE 200
322 char buffer[BUFFERSIZE];
323 struct utsname utsnamebuf;
325 proplist[0][1] = classpath;
326 proplist[1][1] = getenv("JAVA_HOME");
327 proplist[2][1] = getenv("HOME");
328 proplist[3][1] = getenv("USER");
329 proplist[4][1] = getcwd(buffer, BUFFERSIZE);
331 /* get properties from system */
333 proplist[5][1] = utsnamebuf.machine;
334 proplist[6][1] = utsnamebuf.sysname;
335 proplist[7][1] = utsnamebuf.release;
338 *exceptionptr = new_exception(string_java_lang_NullPointerException);
342 /* search for method to add properties */
343 m = class_resolvemethod(p->header.vftbl->class,
345 utf_new_char("(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;")
349 *exceptionptr = new_exception_message(string_java_lang_NoSuchMethodError,
350 "java.lang.Properties.put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;)");
354 /* add the properties */
355 for (i = 0; i < activeprops; i++) {
357 if (proplist[i][1] == NULL) proplist[i][1] = "";
359 asm_calljavafunction(m,
361 javastring_new_char(proplist[i][0]),
362 javastring_new_char(proplist[i][1]),
372 * Class: java_lang_VMRuntime
376 JNIEXPORT s8 JNICALL Java_java_lang_VMRuntime_maxMemory(JNIEnv *env, jclass clazz)
378 return gc_get_max_heap_size();
383 * These are local overrides for various environment variables in Emacs.
384 * Please do not remove this and leave it at the end of the file, where
385 * Emacs will automagically detect them.
386 * ---------------------------------------------------------------------
389 * indent-tabs-mode: t