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 1173 2004-06-16 14:56:18Z jowenn $
40 #include <sys/utsname.h>
49 #include "toolbox/logging.h"
50 #include "toolbox/memory.h"
51 #include "java_io_File.h"
52 #include "java_lang_String.h"
53 #include "java_lang_Process.h"
54 #include "java_util_Properties.h" /* needed for java_lang_Runtime.h */
55 #include "java_lang_VMRuntime.h"
60 /* should we run all finalizers on exit? */
61 static s4 finalizeOnExit = false;
64 static bool shouldFinalizersBeRunOnExit=false;
65 static int activeprops = 19;
67 static char *proplist[MAXPROPS][2] = {
68 { "java.class.path", NULL },
69 { "java.home", NULL },
70 { "user.home", NULL },
71 { "user.name", NULL },
76 { "os.version", NULL },
78 { "java.class.version", "45.3" },
79 { "java.version", PACKAGE":"VERSION },
80 { "java.vendor", "CACAO Team" },
81 { "java.vendor.url", "http://www.complang.tuwien.ac.at/java/cacao/" },
82 { "java.vm.name", "CACAO"},
83 { "java.tmpdir", "/tmp/"},
84 { "java.io.tmpdir", "/tmp/"},
86 { "path.separator", ":" },
87 { "file.separator", "/" },
88 { "line.separator", "\n" },
89 { "java.protocol.handler.pkgs", "gnu.java.net.protocol"}
92 void attach_property(char *name, char *value)
94 if (activeprops >= MAXPROPS) panic("Too many properties defined");
95 proplist[activeprops][0] = name;
96 proplist[activeprops][1] = value;
100 * Class: java_lang_VMRuntime
101 * Method: execInternal
102 * Signature: ([Ljava/lang/String;[Ljava/lang/String;Ljava/io/File;)Ljava/lang/Process;
104 JNIEXPORT java_lang_Process* JNICALL Java_java_lang_VMRuntime_execInternal(JNIEnv *env, jclass clazz, java_objectarray *cmd, java_objectarray *shellenv, java_io_File *workingdir)
106 log_text("Java_java_lang_Runtime_execInternal called");
113 * Class: java/lang/VMRuntime
114 * Method: exitInternal
117 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_exit(JNIEnv *env, jclass clazz, s4 par1)
122 cacao_shutdown(par1);
127 * Class: java/lang/Runtime
131 JNIEXPORT s8 JNICALL Java_java_lang_VMRuntime_freeMemory(JNIEnv *env, jclass clazz)
133 return gc_get_free_bytes();
138 * Class: java/lang/Runtime
142 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_gc(JNIEnv *env, jclass clazz)
149 * Class: java/lang/Runtime
150 * Method: runFinalization
153 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_runFinalization(JNIEnv *env, jclass clazz)
155 gc_invoke_finalizers();
160 * Class: java/lang/Runtime
161 * Method: runFinalizersOnExit
164 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_runFinalizersOnExit(JNIEnv *env, jclass clazz, s4 par1)
167 shouldFinalizersBeRunOnExit=par1;
171 * Class: java/lang/Runtime
172 * Method: runFinalizationsForExit
175 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_runFinalizationForExit(JNIEnv *env, jclass clazz)
177 if (shouldFinalizersBeRunOnExit) {
179 // gc_finalize_all();
181 log_text("Java_java_lang_VMRuntime_runFinalizationForExit called");
187 * Class: java/lang/Runtime
188 * Method: totalMemory
191 JNIEXPORT s8 JNICALL Java_java_lang_VMRuntime_totalMemory(JNIEnv *env, jclass clazz)
193 return gc_get_heap_size();
198 * Class: java/lang/Runtime
199 * Method: traceInstructions
202 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_traceInstructions(JNIEnv *env, jclass clazz, s4 par1)
209 * Class: java/lang/Runtime
210 * Method: traceMethodCalls
213 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_traceMethodCalls(JNIEnv *env, jclass clazz, s4 par1)
220 * Class: java_lang_Runtime
221 * Method: availableProcessors
224 JNIEXPORT s4 JNICALL Java_java_lang_VMRuntime_availableProcessors(JNIEnv *env, jclass clazz)
226 #if defined(_SC_NPROC_ONLN)
227 return (s4) sysconf(_SC_NPROC_ONLN);
229 #elif defined(_SC_NPROCESSORS_ONLN)
230 return (s4) sysconf(_SC_NPROCESSORS_ONLN);
239 * Class: java_lang_Runtime
241 * Signature: (Ljava/lang/String;)I
243 JNIEXPORT s4 JNICALL Java_java_lang_VMRuntime_nativeLoad(JNIEnv *env, jclass clazz, java_lang_String *par1)
250 data = javastring_toutf(par1, 0);
253 log_text("nativeLoad: Error: empty string");
257 buffer_len = utf_strlen(data) + 40;
260 buffer = MNEW(char, buffer_len);
262 strcpy(buffer, "Java_java_lang_VMRuntime_nativeLoad:");
263 utf_sprint(buffer + strlen((char *) data), data);
266 MFREE(buffer, char, buffer_len);
268 log_text("Java_java_lang_VMRuntime_nativeLoad");
275 * Class: java_lang_VMRuntime
276 * Method: nativeGetLibname
277 * Signature: (Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
279 JNIEXPORT java_lang_String* JNICALL Java_java_lang_VMRuntime_nativeGetLibname(JNIEnv *env, jclass clazz, java_lang_String *par1, java_lang_String *par2)
284 java_lang_String *resultString;
285 data = javastring_toutf(par2, 0);
288 log_text("nativeGetLibName: Error: empty string");
292 buffer_len = utf_strlen(data) + 6/*lib .so*/ +1 /*0*/;
293 buffer = MNEW(char, buffer_len);
294 sprintf(buffer,"lib");
295 utf_sprint(buffer+3,data);
296 strcat(buffer,".so");
300 resultString=javastring_new_char(buffer);
302 MFREE(buffer, char, buffer_len);
309 * Class: java_lang_VMRuntime
310 * Method: insertSystemProperties
311 * Signature: (Ljava/util/Properties;)V
313 JNIEXPORT void JNICALL Java_java_lang_VMRuntime_insertSystemProperties(JNIEnv *env, jclass clazz, java_util_Properties *p)
316 #define BUFFERSIZE 200
319 char buffer[BUFFERSIZE];
320 struct utsname utsnamebuf;
322 proplist[0][1] = classpath;
323 proplist[1][1] = getenv("JAVA_HOME");
324 proplist[2][1] = getenv("HOME");
325 proplist[3][1] = getenv("USER");
326 proplist[4][1] = getcwd(buffer, BUFFERSIZE);
328 /* get properties from system */
330 proplist[5][1] = utsnamebuf.machine;
331 proplist[6][1] = utsnamebuf.sysname;
332 proplist[7][1] = utsnamebuf.release;
335 *exceptionptr = new_exception(string_java_lang_NullPointerException);
339 /* search for method to add properties */
340 m = class_resolvemethod(p->header.vftbl->class,
342 utf_new_char("(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;")
346 *exceptionptr = new_exception_message(string_java_lang_NoSuchMethodError,
347 "java.lang.Properties.put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;)");
351 /* add the properties */
352 for (i = 0; i < activeprops; i++) {
354 if (proplist[i][1] == NULL) proplist[i][1] = "";
356 asm_calljavafunction(m,
358 javastring_new_char(proplist[i][0]),
359 javastring_new_char(proplist[i][1]),
369 * Class: java_lang_VMRuntime
373 JNIEXPORT s8 JNICALL Java_java_lang_VMRuntime_maxMemory(JNIEnv *env, jclass clazz)
375 return gc_get_max_heap_size();
380 * These are local overrides for various environment variables in Emacs.
381 * Please do not remove this and leave it at the end of the file, where
382 * Emacs will automagically detect them.
383 * ---------------------------------------------------------------------
386 * indent-tabs-mode: t