xmog_jvm_options Class Reference
[Runtime Configuration]

A class abstracting the maintenance and initialization of JVM configuration options. More...

#include <xmog_jvm_options.h>

Inheritance diagram for xmog_jvm_options:


Public Member Functions
virtual void	appendToAppendBootClassPath (const char *cp)
	Appends a classpath root to the current value of the `-Xbootclasspath/a:` option.
virtual void	appendToBootClassPath (const char *cp)
	Appends a new classpath root to the value of the `-Xbootclasspath:` option.
virtual void	appendToClassPath (const char *cp)
	Appends a string to the system classpath.
virtual void	appendToDisabledAssertions (const char *da)
virtual void	appendToEnabledAssertions (const char *ea)
virtual void	appendToExtensionsDirectories (const char *ed)
	Appends a directory to the extensions path.
virtual void	appendToLibraryPath (const char *lp)
	Appends a string to the library search path.
virtual void	appendToPrependBootClassPath (const char *cp)
	Appends a classpath root to the current value of the `-Xbootclasspath/p:` option.
virtual XMOG_ABORT	getAbort ()
	Returns the `abort` callback that the JVM calls before aborting.
virtual char *	getAppendBootClassPath ()
	Returns the value of the `-Xbootclasspath/a:` option.
virtual bool	getBatchMode ()
	Returns `true` if the `-Xbatch` option is set, `false` otherwise.
virtual char *	getBootClassPath ()
	Returns the value of the `-Xbootclasspath:` option.
virtual bool	getCheckJni ()
	Returns `true` if the `-Xcheck`:jni option is set, `false` otherwise.
virtual bool	getCheckSource ()
virtual char *	getClassPath ()
	Returns the configured system classpath.
virtual char *	getDashDOption (const char *name)
	Returns the value of a `-D` option (a system property) or `NULL` if the option is undefined.
virtual char *	getDashXOption (const char *name)
	Returns the value of a `-X` option (a generic JVM option) or `NULL` if the option is undefined.
virtual bool	getDebug ()
	Returns `true` if the `-Xdebug` option is set, `false` otherwise.
virtual bool	getDisableAsyncGC ()
virtual bool	getDisableClassGC ()
	Returns the value of the `-Xnoclassgc` option.
virtual char *	getDisabledAssertions ()
virtual bool	getDisableSystemAssertions ()
virtual bool	getEnableClassGC ()
	Returns the opposite of the value of the `-Xnoclassgc` option.
virtual char *	getEnabledAssertions ()
virtual bool	getEnableSystemAssertions ()
virtual bool	getEnableVerboseGC ()
virtual XMOG_EXIT	getExit ()
	Returns the `exit` callback that the JVM calls before exiting.
virtual char *	getExtensionsDirectories ()
	Returns the configured extensions directories.
virtual bool	getFuture ()
	Returns `true` if the `-Xfuture` option is set, `false` otherwise.
virtual bool	getIgnoreUnrecognized ()
	Returns whether or not unrecognized initialization options are ignored or not.
virtual bool	getIncrementalGC ()
	Returns the value of the incremental garbage collection option.
virtual void *	getInitArgs (jint jniVersion)
	Returns a pointer to an object that can be used to initialize a JVM.
virtual jint	getInitialHeapSizeInMB ()
	Returns the initial heapsize in MB.
virtual bool	getInterpretedMode ()
	Returns the value of the `-Xint` option.
virtual jint	getJniVersion ()
	Returns the configured JNI version.
virtual char *	getLibraryPath ()
	Returns the configured library search path.
virtual char *	getLogGCFile ()
	Returns the value of the garbage collection log file option.
virtual jint	getMaximumHeapSizeInMB ()
	Returns the configured maximum heap size in MB or `0` if none is configured.
virtual bool	getMixedMode ()
	Returns the value of the `-Xmixed` option.
virtual jint	getNativeStackSizeInKB ()
virtual bool	getNoagent ()
	Returns `true` if the `-Xnoagent` option is set, `false` otherwise.
virtual void *	getOtherOption (const char *name)
	Allows the querying of a JVM option that is neither a -D nor a -X option.
virtual char *	getPrependBootClassPath ()
	Returns the value of the `-Xbootclasspath/p:` option.
virtual bool	getProf ()
	Returns `true` if the `-Xprof` options is used.
virtual bool	getReduceSignals ()
	Returns `true` if the `-Xrs` option is set, `false` otherwise.
virtual char *	getRun ()
	Returns the value of the `-Xrun` option.
virtual char *	getSecurityManager ()
	Returns the classname of the application's security manager.
virtual char *	getSecurityPolicy ()
	Returns the filename of the application's security policy.
virtual jint	getStackSizeInKB ()
	Returns the stack size for Java threads in kB.
virtual xmog_jvm_verbosity	getVerbosity ()
	Returns the configured JVM verbosity.
virtual xmog_bytecode_verification	getVerifyMode ()
virtual XMOG_VFPRINTF	getVfprintf ()
	Returns the `vfprintf` callback that the JVM uses for reporting JVM information.
virtual void	mergeWithDefaults (JDK1_1InitArgs &iargs11)
virtual void	prependToClassPath (const char *cp)
	Prepends a string to the system classpath.
virtual int	readJvmOptions (const char *file, XMOGVERSION vers=NULL, XMOGCONFIG conf=NULL, XMOGVERSION reserved0=NULL)
	Reads the JVM initialization options from a configuration file or the Windows registry.
virtual void	removeDashDOption (const char *name)
	Removes a `-D` option (a system property) from the configuration.
virtual void	removeDashXOption (const char *name)
	Removes a `-X` option (a generic JVM option) from the configuration.
virtual void	removeOtherOption (const char *name)
	Removes a JVM option that is neither a -D nor a -X option.
virtual void	reset ()
	Reestablishes the default (uninitialized) values.
virtual void	setAbort (const char *ab)
	Sets the callback that the JVM calls before aborting.
virtual void	setAbort (XMOG_ABORT ab)
	Sets the callback that the JVM calls before aborting.
virtual void	setAppendBootClassPath (const char *cp)
	Sets the value of the `-Xbootclasspath/a:` option.
virtual void	setBatchMode (const char *b)
	Sets or clears the `-Xbatch` option.
virtual void	setBatchMode (bool b)
	Sets or clears the `-Xbatch` option.
virtual void	setBootClassPath (const char *cp)
	Sets the value of the `-Xbootclasspath:` option.
virtual void	setCheckJni (const char *cjni)
	Sets or clears the `-Xcheck`:jni option.
virtual void	setCheckJni (bool cjni)
	Sets or clears the `-Xcheck`:jni option.
virtual void	setCheckSource (bool cs)
virtual void	setClassPath (const char *cp)
	Sets the system classpath.
virtual void	setDashDOption (const char name, const char value=0)
	Sets a `-D` option (a system property).
virtual void	setDashXOption (const char name, const char value=0)
	Sets a `-X` option (a generic JVM option).
virtual void	setDebug (const char *d)
	Sets or clears the `-Xdebug` option.
virtual void	setDebug (bool d)
	Sets or clears the `-Xdebug` option.
virtual void	setDisableAsyncGC (bool dagc)
virtual void	setDisableClassGC (const char *dcgc)
	Sets the value of the `-Xnoclassgc` option.
virtual void	setDisableClassGC (bool dcgc)
	Sets the value of the `-Xnoclassgc` option.
virtual void	setDisabledAssertions (const char *da)
virtual void	setDisableSystemAssertions (const char *dsa)
virtual void	setDisableSystemAssertions (bool dsa)
virtual void	setEnableClassGC (const char *ecgc)
	Sets the opposite of the value of the `-Xnoclassgc` option.
virtual void	setEnableClassGC (bool ecgc)
	Sets the opposite of the value of the `-Xnoclassgc` option.
virtual void	setEnabledAssertions (const char *ea)
virtual void	setEnableSystemAssertions (const char *esa)
virtual void	setEnableSystemAssertions (bool esa)
virtual void	setEnableVerboseGC (const char *evgc)
virtual void	setEnableVerboseGC (bool evgc)
virtual void	setExit (const char *ex)
	Sets the callback that the JVM calls before exiting.
virtual void	setExit (XMOG_EXIT ex)
	Sets the callback that the JVM calls before exiting.
virtual void	setExtensionsDirectories (const char *ed)
	Sets the path on which the JVM searches for jarfiles that are treated like system types.
virtual void	setFuture (const char *future)
	Sets or clears the `-Xfuture` option.
virtual void	setFuture (bool future)
	Sets or clears the `-Xfuture` option.
virtual void	setIgnoreUnrecognized (const char *ignore)
	Sets whether or not unrecognized initialization options should be ignored or not.
virtual void	setIgnoreUnrecognized (bool ignore)
	Sets whether or not unrecognized initialization options should be ignored or not.
virtual void	setIncrementalGC (const char *i)
	Enables or disables incremental garbage collection.
virtual void	setIncrementalGC (bool i)
	Enables or disables incremental garbage collection.
virtual void	setInitialHeapSize (const char *ihs)
	Sets the initial heap size.
virtual void	setInitialHeapSizeInMB (jint ihs)
	Sets the initial heap size for Java threads in MB.
virtual void	setInterpretedMode (const char *i)
	Sets the value of the `-Xint` option.
virtual void	setInterpretedMode (bool i)
	Sets the value of the `-Xint` option.
virtual void	setJniVersion (const char *version)
	Sets the JNI version that is going to be used (in JRE 1.2.x or higher only).
virtual void	setJniVersion (jint version)
	Sets the JNI version that is going to be used (in JRE 1.2.x or higher only).
virtual void	setLibraryPath (const char *lp)
	Sets the path on which the JVM searches for native libraries.
virtual void	setLogGCFile (const char *file)
	Sets the log file used by the JVM.
virtual void	setMaximumHeapSize (const char *mhs)
	Sets the maximum heap size.
virtual void	setMaximumHeapSizeInMB (jint mhs)
	Sets the maximum heap size in MB.
virtual void	setMixedMode (const char *m)
	Sets the value of the `-Xmixed` option.
virtual void	setMixedMode (bool m)
	Sets the value of the `-Xmixed` option.
virtual void	setNativeStackSizeInKB (jint nss)
virtual void	setNoagent (const char *na)
	Sets or clears the `-Xnoagent` option.
virtual void	setNoagent (bool na)
	Sets or clears the `-Xnoagent` option.
virtual void	setOtherOption (const char namevalue, void ptr=0)
	Allows the specification of a JVM option that is neither a -D nor a -X option.
virtual void	setPrependBootClassPath (const char *cp)
	Sets the value of the `-Xbootclasspath/p:` option.
virtual void	setProf (const char *p)
	Sets the `-Xprof` option if `"true"`.
virtual void	setProf (bool p)
	Sets the `-Xprof` option if `true`.
virtual void	setReduceSignals (const char *rs)
	Sets or clears the `-Xrs` option.
virtual void	setReduceSignals (bool rs)
	Sets or clears the `-Xrs` option.
virtual void	setRun (const char *runopts)
	Sets the `-Xrun` option.
virtual void	setSecurityManager (const char *sm)
	Sets the class that is the security manager for the application.
virtual void	setSecurityPolicy (const char *policyFile)
	Sets the policy file containing security settings for the application.
virtual void	setStackSize (const char *ss)
	Sets the stack size for Java threads.
virtual void	setStackSizeInKB (jint ss)
	Sets the stack size for Java threads in kB.
virtual void	setVerbosity (xmog_jvm_verbosity v)
virtual void	setVerbosity (const char *v)
virtual void	setVerbosity (int v)
virtual void	setVerifyMode (xmog_bytecode_verification ver)
virtual void	setVfprintf (const char *vfp)
	Sets the `vfprintf` callback that the JVM uses for reporting JVM information.
virtual void	setVfprintf (XMOG_VFPRINTF vfp)
	Sets the `vfprintf` callback that the JVM uses for reporting JVM information.
	xmog_jvm_options (const char *filename, XMOGVERSION vers, XMOGCONFIG conf, XMOGVERSION reserved0, bool bEnvOverrides=true)
	Creates an options object.
Protected Member Functions
void	env_override ()
	xmog_jvm_options (int argc, char *argv[], bool bEnvOverrides=true)
	xmog_jvm_options (XMOGVERSION vers, XMOGCONFIG conf, XMOGVERSION reserved0, bool bEnvOverrides=true)
	xmog_jvm_options (const char *filename, bool bEnvOverrides=true)
	xmog_jvm_options (bool bEnvOverrides=true)

Detailed Description

A class abstracting the maintenance and initialization of JVM configuration options.

This class is usually used via inheritance, through the xmog_jvm_loader type, which acts as a factory for an xmog_jvm instance. The derived type inherits all the methods for getting and setting JVM initialization settings like system properties or memory options. This type supports the following settings:

Setting File or Registry CLI Environment Description

Abort callback Abort -abort XMOG_ABORT The abort callback function.

AppendBootclasspath AppendBootClasspath -bootclasspath/a: XMOG_BOOT_CLASS_PATH The append bootclasspath to be used. This corresponds with the -Xbootclasspath/a: option.

Bootclasspath BootClasspath -bootclasspath: XMOG_BOOT_CLASS_PATH The bootclasspath to be used. This corresponds with the -Xbootclasspath: option.

Check JNI CheckJni -check:jni XMOG_CHECK_JNI Run extra validation code on JNI arguments and calls. Much slower than normal operation; should only be used in debugging scenarios. This corresponds with the -Xcheck:jni option.

Classpath Classpath -classpath CLASSPATH The classpath to be used. This corresponds with the Java -cp option.

-D Options Add a generic -D option. This corresponds with the Java -D option.

Debug Debug -debug XMOG_DEBUG Run the JVM in debug mode. This corresponds with the Java -Xdebug option.

Ignore unrecognized IgnoreUnrecognized Boolean value which specifies whether we're ignoring unrecognized JNI options or whether we're failing JVM initialization in such a case.

Initial heapsize InitialHeapSize XMOG_INITIAL_HEAPSIZE Corresponds with the Java -Xms option.

JNI version JNIVersion Set the version number of the JNIEnv that we're requesting.

Maximum heapsize MaximumHeapSize XMOG_MAXIMUM_HEAPSIZE Corresponds with the Java -Xmx option.

Profiling Prof -prof XMOG_PROF Add "prof" options, for example for profiling or debugging. This corresponds with the Java -Xprof option.

Run option Run -run XMOG_RUN Add "run" options, for example for profiling or debugging. This corresponds with the Java -Xrun option.

Stack size StackSize XMOG_STACKSIZE Corresponds with the Java -Xss option.

-X Options Add a generic -X option. This corresponds with the Java -X option.

Constructor & Destructor Documentation

xmog_jvm_options::xmog_jvm_options ( const char * filename,

XMOGVERSION vers,

XMOGCONFIG conf,

XMOGVERSION reserved0,

bool bEnvOverrides = true

)

Creates an options object.

Parameters:

filename the name of the file containing the configuration data. May be NULL to signal the registry on Windows.

vers the version number. May be NULL if old-style file format is not used.

conf the configuration name. May be NULL if old-style file format is not used.

reserved0 Unused.

bEnvOverride true if environment variables can be used to override settings. Defaults to true.

Member Function Documentation

virtual void xmog_jvm_options::appendToAppendBootClassPath ( const char * cp ) [virtual]

Appends a classpath root to the current value of the -Xbootclasspath/a: option.

Parameters:

cp the classpath root to append to the append-bootclasspath.

virtual void xmog_jvm_options::appendToBootClassPath ( const char * cp ) [virtual]

Appends a new classpath root to the value of the -Xbootclasspath: option.

Parameters:

cp the new classpath root that is appended to the bootclasspath.

virtual void xmog_jvm_options::appendToClassPath ( const char * cp ) [virtual]

Appends a string to the system classpath.

Parameters:

cp an additional classpath root for the system classpath.

virtual void xmog_jvm_options::appendToExtensionsDirectories ( const char * ed ) [virtual]

Appends a directory to the extensions path.

Parameters:

ed an additional root for the extensions path.

virtual void xmog_jvm_options::appendToLibraryPath ( const char * lp ) [virtual]

Appends a string to the library search path.

Parameters:

lp an additional root for the library search path.

virtual void xmog_jvm_options::appendToPrependBootClassPath ( const char * cp ) [virtual]

Appends a classpath root to the current value of the -Xbootclasspath/p: option.

Parameters:

cp the classpath root to append to the prepend-bootclasspath.

virtual char* xmog_jvm_options::getAppendBootClassPath ( ) [virtual]

Returns the value of the -Xbootclasspath/a: option.

Returns:
the configured path or NULL if none is configured.

virtual char* xmog_jvm_options::getBootClassPath ( ) [virtual]

Returns the value of the -Xbootclasspath: option.

Returns:
the configured path or NULL if none is configured.

virtual char* xmog_jvm_options::getDashDOption ( const char * name ) [virtual]

Returns the value of a -D option (a system property) or NULL if the option is undefined.

Parameters:

name the property's name.

virtual char* xmog_jvm_options::getDashXOption ( const char * name ) [virtual]

Returns the value of a -X option (a generic JVM option) or NULL if the option is undefined.

Parameters:

name the option's name.

virtual bool xmog_jvm_options::getDisableClassGC ( ) [virtual]

Returns the value of the -Xnoclassgc option.

Returns:
true if the JVM will be configured to disable garbage collection of classes.

virtual bool xmog_jvm_options::getEnableClassGC ( ) [virtual]

Returns the opposite of the value of the -Xnoclassgc option.

Returns:
true if the JVM will not be configured to disable garbage collection of classes.

virtual bool xmog_jvm_options::getIgnoreUnrecognized ( ) [virtual]

Returns whether or not unrecognized initialization options are ignored or not.

See also:
setIgnoreUnrecognized()

virtual bool xmog_jvm_options::getIncrementalGC ( ) [virtual]

Returns the value of the incremental garbage collection option.
This method returns true if the -Xincgc commandline option would be used.

Returns:
true if the -Xincgc options would be used.

virtual void* xmog_jvm_options::getInitArgs ( jint jniVersion ) [virtual]

Returns a pointer to an object that can be used to initialize a JVM.
The caller does not have to delete the returned value because the instance is maintained internally.
Parameters:

jniVersion the JNI version for which we want an initializing object. Different versions of JREs require different types of initialization types. The JNI version number is used to distinguish between the different requirements. Use 0x00010001 for JRE 1.1.x, 0x00010002 for JRE 1.2 and higher, 0x00010004 for JRE 1.4.x or higher. Using an unnecesarily small value will work, but it will restrict the runtime's ability to use more advanced JNI features.

Returns:
an internally maintained instance of a JVM initialization object. The caller does not have to perform any cleanup.

virtual bool xmog_jvm_options::getInterpretedMode ( ) [virtual]

Returns the value of the -Xint option.

Returns:
true if the JVM will be configured to only support interpreted mode execution.

virtual jint xmog_jvm_options::getJniVersion ( ) [virtual]

Returns the configured JNI version.
The default value is 0x00010002 (65538), representing JRE 1.2.

virtual char* xmog_jvm_options::getLogGCFile ( ) [virtual]

Returns the value of the garbage collection log file option.
This method returns the value of the -Xloggc commandline option (null if the setting is not being used.)

Returns:
NULL or the name of the log file.

virtual bool xmog_jvm_options::getMixedMode ( ) [virtual]

Returns the value of the -Xmixed option.

Returns:
true if the JVM will be configured to support mixed mode execution.

virtual void* xmog_jvm_options::getOtherOption ( const char * name ) [virtual]

Allows the querying of a JVM option that is neither a -D nor a -X option.

Parameters:

name the entire option, name and value together.

virtual char* xmog_jvm_options::getPrependBootClassPath ( ) [virtual]

Returns the value of the -Xbootclasspath/p: option.

Returns:
the configured path or NULL if none is configured.

virtual xmog_jvm_verbosity xmog_jvm_options::getVerbosity ( ) [virtual]

Returns the configured JVM verbosity.

Returns:
the configured JVM verbosity.

virtual void xmog_jvm_options::prependToClassPath ( const char * cp ) [virtual]

Prepends a string to the system classpath.
Prepending is implemented as appending the original classpath to the given path. This is an unimportant implementation detail but it might confuse you if you look at the tracing output of this method.

Parameters:

cp an additional classpath root for the system classpath.

virtual int xmog_jvm_options::readJvmOptions ( const char * file,

XMOGVERSION vers = NULL,

XMOGCONFIG conf = NULL,

XMOGVERSION reserved0 = NULL

) [virtual]

Reads the JVM initialization options from a configuration file or the Windows registry.
This method is used to load the JVM initialization options from a file or from the Windows registry. Currently, old-style JunC++ion configuration files are supported as well as .NET-style configuration files.
Parameters:

file the configuration file that is to be read. This value may be NULL on Windows, but then the optional vers and conf arguments need to be provided. In the NULL case, the runtime is going to attempt reading the initialization values from the registry. In the non-NULL case, the configuration file may either be an old-style JunC++ion configuration file or a new-style .NET configuration file. The runtime is going to pick one based on the first character of the configuration file. If it is an '<', the .NET XML format is going to be expected, otherwise the old JunC++ion format is going to be expected.

vers an optional argument providing the old-style JunC++ion version number. This argument is required for registry-based and old-style JunC++ion based configuration. Always use "2.0" here.

conf an optional argument providing the old-style JunC++ion configuration name. This argument is required for registry-based and old-style JunC++ion based configuration. It represents your application's unique configuration identifier that allows multiple JunC++ion-enabled applications to co-reside on one host.

reserved0 an optional argument that should always be NULL.

virtual void xmog_jvm_options::removeDashDOption ( const char * name ) [virtual]

Removes a -D option (a system property) from the configuration.

Parameters:

name the property's name.

virtual void xmog_jvm_options::removeDashXOption ( const char * name ) [virtual]

Removes a -X option (a generic JVM option) from the configuration.

Parameters:

name the option's name.

virtual void xmog_jvm_options::removeOtherOption ( const char * name ) [virtual]

Removes a JVM option that is neither a -D nor a -X option.
Using this method, you can only remove exactly matching options, i.e. name and value of the option have to be identical.

Parameters:

name the entire option, name and value together.

virtual void xmog_jvm_options::reset ( ) [virtual]

Reestablishes the default (uninitialized) values.
This method may be useful if you started to configure the options before discovering that you need to start over with different values.

virtual void xmog_jvm_options::setAbort ( const char * ab ) [virtual]

Sets the callback that the JVM calls before aborting.

Parameters:

ab a persisted function pointer.

virtual void xmog_jvm_options::setAbort ( XMOG_ABORT ab ) [virtual]

Sets the callback that the JVM calls before aborting.

Parameters:

ab a function pointer of type XMOG_ABORT.

virtual void xmog_jvm_options::setAppendBootClassPath ( const char * cp ) [virtual]

Sets the value of the -Xbootclasspath/a: option.

Parameters:

cp the new append-bootclasspath.

virtual void xmog_jvm_options::setBatchMode ( const char * b ) [virtual]

Sets or clears the -Xbatch option.

Parameters:

b "true" if the -Xbatch option is to be used, "false" if not.

virtual void xmog_jvm_options::setBatchMode ( bool b ) [virtual]

Sets or clears the -Xbatch option.

Parameters:

b true if the -Xbatch option is to be used, false if not.

virtual void xmog_jvm_options::setBootClassPath ( const char * cp ) [virtual]

Sets the value of the -Xbootclasspath: option.

Parameters:

cp the new bootclasspath.

virtual void xmog_jvm_options::setCheckJni ( const char * cjni ) [virtual]

Sets or clears the -Xcheck:jni option.
You usually won't need this option unless you're debugging your application and want to rule out JNI errors. Setting this option can dramatically slow down your application.

Parameters:

cjni "true" if the -Xcheck:jni option is to be used, "false" if not.

virtual void xmog_jvm_options::setCheckJni ( bool cjni ) [virtual]

Sets or clears the -Xcheck:jni option.
You usually won't need this option unless you're debugging your application and want to rule out JNI errors. Setting this option can dramatically slow down your application.

Parameters:

cjni true if the -Xcheck:jni option is to be used, false if not.

virtual void xmog_jvm_options::setClassPath ( const char * cp ) [virtual]

Sets the system classpath.
This method should be avoided in deference to appendToClassPath() in order to avoid path separator portability issues and to allow configuration hooks to contribute to the classpath configuration.
This method corresponds with the -cp commandline option.

Parameters:

cp the system classpath.

virtual void xmog_jvm_options::setDashDOption ( const char * name,

const char * value = 0

) [virtual]

Sets a -D option (a system property).

Parameters:

name the property's name.

value the optional property value. Not every property has to have a value, some properties are useful just by virtue of being defined.

virtual void xmog_jvm_options::setDashXOption ( const char * name,

const char * value = 0

) [virtual]

Sets a -X option (a generic JVM option).
Most commonly used JVM options are available via more convenient wrapper functions, but you can use the option's raw name as well.

Parameters:

name the option's name.

value the optional option value. If specified, the value is concatenated to the name to form the complete setting. Breaking the option into a name and a value allows the correct overriding of -X options with new values.

virtual void xmog_jvm_options::setDebug ( const char * d ) [virtual]

Sets or clears the -Xdebug option.

Parameters:

d "true" if the -Xdebug option is to be used, "false" if not.

virtual void xmog_jvm_options::setDebug ( bool d ) [virtual]

Sets or clears the -Xdebug option.

Parameters:

d true if the -Xdebug option is to be used, false if not.

virtual void xmog_jvm_options::setDisableClassGC ( const char * dcgc ) [virtual]

Sets the value of the -Xnoclassgc option.

Parameters:

dcgc "true" if the JVM will be configured to disable garbage collection of classes.

virtual void xmog_jvm_options::setDisableClassGC ( bool dcgc ) [virtual]

Sets the value of the -Xnoclassgc option.

Parameters:

dcgc true if the JVM will be configured to disable garbage collection of classes.

virtual void xmog_jvm_options::setEnableClassGC ( const char * ecgc ) [virtual]

Sets the opposite of the value of the -Xnoclassgc option.

Parameters:

ecgc "true" if the JVM will not be configured to disable garbage collection of classes.

virtual void xmog_jvm_options::setEnableClassGC ( bool ecgc ) [virtual]

Sets the opposite of the value of the -Xnoclassgc option.

Parameters:

ecgc true if the JVM will not be configured to disable garbage collection of classes.

virtual void xmog_jvm_options::setExit ( const char * ex ) [virtual]

Sets the callback that the JVM calls before exiting.

Parameters:

ex a persisted function pointer.

virtual void xmog_jvm_options::setExit ( XMOG_EXIT ex ) [virtual]

Sets the callback that the JVM calls before exiting.

Parameters:

ex a function pointer of type XMOG_EXIT.

virtual void xmog_jvm_options::setExtensionsDirectories ( const char * ed ) [virtual]

Sets the path on which the JVM searches for jarfiles that are treated like system types.
This method should be avoided in deference to appendToExtensionsDirectories() in order to avoid path separator portability issues and to allow configuration hooks to contribute to the configuration.
This method corresponds with the -Djava.ext.dirs commandline option.

Parameters:

ed the native library searchpath.

virtual void xmog_jvm_options::setFuture ( const char * future ) [virtual]

Sets or clears the -Xfuture option.

Parameters:

future "true" if the -Xfuture option is to be used, "false" if not.

virtual void xmog_jvm_options::setFuture ( bool future ) [virtual]

Sets or clears the -Xfuture option.

Parameters:

future true if the -Xfuture option is to be used, false if not.

virtual void xmog_jvm_options::setIgnoreUnrecognized ( const char * ignore ) [virtual]

Sets whether or not unrecognized initialization options should be ignored or not.
If this is set to false, an illegal configuration option will prevent the JVM from loading successfully. The default is "true" .
Parameters:

ignore legal values are "true" or "false" .

See also:
getIgnoreUnrecognized()

virtual void xmog_jvm_options::setIgnoreUnrecognized ( bool ignore ) [virtual]

Sets whether or not unrecognized initialization options should be ignored or not.
If this is set to false , an illegal configuration option will prevent the JVM from loading successfully. The default is true .
See also:
getIgnoreUnrecognized()

virtual void xmog_jvm_options::setIncrementalGC ( const char * i ) [virtual]

Enables or disables incremental garbage collection.
This method corresponds with the -Xincgc commandline option.

Parameters:

i "true" or "false".

virtual void xmog_jvm_options::setIncrementalGC ( bool i ) [virtual]

Enables or disables incremental garbage collection.
This method corresponds with the -Xincgc commandline option.

Parameters:

i true or false.

virtual void xmog_jvm_options::setInitialHeapSize ( const char * ihs ) [virtual]

Sets the initial heap size.
This method corresponds with the following implicit initialization mechanisms:

Environment variable name: XMOG_INITIAL_HEAPSIZE

Old-style configuration: -Xms in Java2 section of named configuration.

New-style configuration: InitialHeapSize key in JVM settings section.
Parameters:

ihs the initial heap size as a string. The string format supports multipliers like 'm' or 'k', for example
setInitialHeapSize( "4m" );

virtual void xmog_jvm_options::setInitialHeapSizeInMB ( jint ihs ) [virtual]

Sets the initial heap size for Java threads in MB.
This method corresponds with the following implicit initialization mechanisms:

Environment variable name: XMOG_INITIAL_HEAPSIZE

Old-style configuration: -Xms in Java2 section of named configuration.

New-style configuration: InitialHeapSize key in JVM settings section.

virtual void xmog_jvm_options::setInterpretedMode ( const char * i ) [virtual]

Sets the value of the -Xint option.

Parameters:

i "true" if the JVM will be configured to only support interpreted mode execution.

virtual void xmog_jvm_options::setInterpretedMode ( bool i ) [virtual]

Sets the value of the -Xint option.

Parameters:

i true if the JVM will

Setting	File or Registry	CLI	Environment	Description
Abort callback	Abort	-abort	XMOG_ABORT	The abort callback function.
AppendBootclasspath	AppendBootClasspath	-bootclasspath/a:	XMOG_BOOT_CLASS_PATH	The append bootclasspath to be used. This corresponds with the `-Xbootclasspath/a:` option.
Bootclasspath	BootClasspath	-bootclasspath:	XMOG_BOOT_CLASS_PATH	The bootclasspath to be used. This corresponds with the `-Xbootclasspath:` option.
Check JNI	CheckJni	-check:jni	XMOG_CHECK_JNI	Run extra validation code on JNI arguments and calls. Much slower than normal operation; should only be used in debugging scenarios. This corresponds with the `-Xcheck:jni` option.
Classpath	Classpath	-classpath	CLASSPATH	The classpath to be used. This corresponds with the Java `-cp` option.
-D Options				Add a generic -D option. This corresponds with the Java `-D` option.
Debug	Debug	-debug	XMOG_DEBUG	Run the JVM in debug mode. This corresponds with the Java `-Xdebug` option.
Ignore unrecognized	IgnoreUnrecognized			Boolean value which specifies whether we're ignoring unrecognized JNI options or whether we're failing JVM initialization in such a case.
Initial heapsize	InitialHeapSize		XMOG_INITIAL_HEAPSIZE	Corresponds with the Java `-Xms` option.
JNI version	JNIVersion			Set the version number of the JNIEnv that we're requesting.
Maximum heapsize	MaximumHeapSize		XMOG_MAXIMUM_HEAPSIZE	Corresponds with the Java `-Xmx` option.
Profiling	Prof	-prof	XMOG_PROF	Add "prof" options, for example for profiling or debugging. This corresponds with the Java `-Xprof` option.
Run option	Run	-run	XMOG_RUN	Add "run" options, for example for profiling or debugging. This corresponds with the Java `-Xrun` option.
Stack size	StackSize		XMOG_STACKSIZE	Corresponds with the Java `-Xss` option.
-X Options				Add a generic -X option. This corresponds with the Java `-X` option.

xmog_jvm_options Class Reference [Runtime Configuration]

Public Member Functions

Protected Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

xmog_jvm_options Class Reference
[Runtime Configuration]