31 #include <stdarg.h>
32 #include <string.h>
33 #include <sys/types.h>
34 #include <sys/stat.h>
35 #include <wtypes.h>
36 #include <commctrl.h>
37
38 #include <jni.h>
39 #include "java.h"
40
41 #define JVM_DLL "jvm.dll"
42 #define JAVA_DLL "java.dll"
43
44 /*
45 * Prototypes.
46 */
47 static jboolean GetJVMPath(const char *jrepath, const char *jvmtype,
48 char *jvmpath, jint jvmpathsize);
49 static jboolean GetJREPath(char *path, jint pathsize);
50
51 /* We supports warmup for UI stack that is performed in parallel
52 * to VM initialization.
53 * This helps to improve startup of UI application as warmup phase
54 * might be long due to initialization of OS or hardware resources.
55 * It is not CPU bound and therefore it does not interfere with VM init.
56 * Obviously such warmup only has sense for UI apps and therefore it needs
57 * to be explicitly requested by passing -Dsun.awt.warmup=true property
58 * (this is always the case for plugin/javaws).
59 *
60 * Implementation launches new thread after VM starts and use it to perform
61 * warmup code (platform dependent).
62 * This thread is later reused as AWT toolkit thread as graphics toolkit
63 * often assume that they are used from the same thread they were launched on.
64 *
65 * At the moment we only support warmup for D3D. It only possible on windows
66 * and only if other flags do not prohibit this (e.g. OpenGL support requested).
67 */
68 #undef ENABLE_AWT_PRELOAD
69 #ifndef JAVA_ARGS /* turn off AWT preloading for javac, jar, etc */
70 /* CR6999872: fastdebug crashes if awt library is loaded before JVM is
329 return JNI_FALSE;
330 }
331 /* Does this app ship a private JRE in <apphome>\jre directory? */
332 JLI_Snprintf(javadll, sizeof (javadll), "%s\\jre\\bin\\" JAVA_DLL, path);
333 if (stat(javadll, &s) == 0) {
334 JLI_StrCat(path, "\\jre");
335 JLI_TraceLauncher("JRE path is %s\n", path);
336 return JNI_TRUE;
337 }
338 }
339
340 /* Try getting path to JRE from path to JLI.DLL */
341 if (GetApplicationHomeFromDll(path, pathsize)) {
342 JLI_Snprintf(javadll, sizeof(javadll), "%s\\bin\\" JAVA_DLL, path);
343 if (stat(javadll, &s) == 0) {
344 JLI_TraceLauncher("JRE path is %s\n", path);
345 return JNI_TRUE;
346 }
347 }
348
349 JLI_ReportErrorMessage(JRE_ERROR8 JAVA_DLL);
350 return JNI_FALSE;
351 }
352
353 /*
354 * Given a JRE location and a JVM type, construct what the name the
355 * JVM shared library will be. Return true, if such a library
356 * exists, false otherwise.
357 */
358 static jboolean
359 GetJVMPath(const char *jrepath, const char *jvmtype,
360 char *jvmpath, jint jvmpathsize)
361 {
362 struct stat s;
363 if (JLI_StrChr(jvmtype, '/') || JLI_StrChr(jvmtype, '\\')) {
364 JLI_Snprintf(jvmpath, jvmpathsize, "%s\\" JVM_DLL, jvmtype);
365 } else {
366 JLI_Snprintf(jvmpath, jvmpathsize, "%s\\bin\\%s\\" JVM_DLL,
367 jrepath, jvmtype);
368 }
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31 #include <stdarg.h>
32 #include <string.h>
33 #include <sys/types.h>
34 #include <sys/stat.h>
35 #include <wtypes.h>
36 #include <commctrl.h>
37
38 #include <jni.h>
39 #include "java.h"
40
41 #define JVM_DLL "jvm.dll"
42 #define JAVA_DLL "java.dll"
43
44 /*
45 * Prototypes.
46 */
47 static jboolean GetJVMPath(const char *jrepath, const char *jvmtype,
48 char *jvmpath, jint jvmpathsize);
49 static jboolean GetJREPath(char *path, jint pathsize);
50
51 #ifdef USE_REGISTRY_LOOKUP
52 jboolean GetPublicJREHome(char *buf, jint bufsize);
53 #endif
54
55 /* We supports warmup for UI stack that is performed in parallel
56 * to VM initialization.
57 * This helps to improve startup of UI application as warmup phase
58 * might be long due to initialization of OS or hardware resources.
59 * It is not CPU bound and therefore it does not interfere with VM init.
60 * Obviously such warmup only has sense for UI apps and therefore it needs
61 * to be explicitly requested by passing -Dsun.awt.warmup=true property
62 * (this is always the case for plugin/javaws).
63 *
64 * Implementation launches new thread after VM starts and use it to perform
65 * warmup code (platform dependent).
66 * This thread is later reused as AWT toolkit thread as graphics toolkit
67 * often assume that they are used from the same thread they were launched on.
68 *
69 * At the moment we only support warmup for D3D. It only possible on windows
70 * and only if other flags do not prohibit this (e.g. OpenGL support requested).
71 */
72 #undef ENABLE_AWT_PRELOAD
73 #ifndef JAVA_ARGS /* turn off AWT preloading for javac, jar, etc */
74 /* CR6999872: fastdebug crashes if awt library is loaded before JVM is
333 return JNI_FALSE;
334 }
335 /* Does this app ship a private JRE in <apphome>\jre directory? */
336 JLI_Snprintf(javadll, sizeof (javadll), "%s\\jre\\bin\\" JAVA_DLL, path);
337 if (stat(javadll, &s) == 0) {
338 JLI_StrCat(path, "\\jre");
339 JLI_TraceLauncher("JRE path is %s\n", path);
340 return JNI_TRUE;
341 }
342 }
343
344 /* Try getting path to JRE from path to JLI.DLL */
345 if (GetApplicationHomeFromDll(path, pathsize)) {
346 JLI_Snprintf(javadll, sizeof(javadll), "%s\\bin\\" JAVA_DLL, path);
347 if (stat(javadll, &s) == 0) {
348 JLI_TraceLauncher("JRE path is %s\n", path);
349 return JNI_TRUE;
350 }
351 }
352
353 #ifdef USE_REGISTRY_LOOKUP
354 /* Lookup public JRE using Windows registry. */
355 if (GetPublicJREHome(path, pathsize)) {
356 JLI_TraceLauncher("JRE path is %s\n", path);
357 return JNI_TRUE;
358 }
359 #endif
360
361 JLI_ReportErrorMessage(JRE_ERROR8 JAVA_DLL);
362 return JNI_FALSE;
363 }
364
365 /*
366 * Given a JRE location and a JVM type, construct what the name the
367 * JVM shared library will be. Return true, if such a library
368 * exists, false otherwise.
369 */
370 static jboolean
371 GetJVMPath(const char *jrepath, const char *jvmtype,
372 char *jvmpath, jint jvmpathsize)
373 {
374 struct stat s;
375 if (JLI_StrChr(jvmtype, '/') || JLI_StrChr(jvmtype, '\\')) {
376 JLI_Snprintf(jvmpath, jvmpathsize, "%s\\" JVM_DLL, jvmtype);
377 } else {
378 JLI_Snprintf(jvmpath, jvmpathsize, "%s\\bin\\%s\\" JVM_DLL,
379 jrepath, jvmtype);
380 }
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