jvm.h

This is a resource based on j2me embedded,if you dont understand,you can connection with me .

JNIEXPORT jobject JNICALL
JVM_NewInstance(JNIEnv *env, jclass cls);

/*
 * java.security.*
 */

JNIEXPORT jobject JNICALL
JVM_DoPrivileged(JNIEnv *env, jclass cls, 
		 jobject action, jobject context, jboolean wrapException);

JNIEXPORT jobject JNICALL
JVM_GetInheritedAccessControlContext(JNIEnv *env, jclass cls);

JNIEXPORT jobject JNICALL
JVM_GetStackAccessControlContext(JNIEnv *env, jclass cls);

/*
 * sun.misc.Signal stuff. Not a standard Java API. Don't need to implement
 * them on all VMs.
 */

JNIEXPORT void * JNICALL
JVM_RegisterSignal(jint sig, void *handler);

JNIEXPORT jboolean JNICALL
JVM_RaiseSignal(jint sig);

JNIEXPORT jint JNICALL
JVM_FindSignal(const char *name);

#ifndef CDC_10
/*
 * Retrieve the assertion directives for the specified class.
 */
JNIEXPORT jboolean JNICALL
JVM_DesiredAssertionStatus(JNIEnv *env, jclass unused, jclass cls);

/*
 * Retrieve the assertion directives from the VM.
 */
JNIEXPORT jobject JNICALL
JVM_AssertionStatusDirectives(JNIEnv *env, jclass unused);
#endif

/* Constants in class files */

#define JVM_ACC_PUBLIC        0x0001  /* visible to everyone */
#define JVM_ACC_PRIVATE       0x0002  /* visible only to the defining class */
#define JVM_ACC_PROTECTED     0x0004  /* visible to subclasses */
#define JVM_ACC_STATIC        0x0008  /* instance variable is static */
#define JVM_ACC_FINAL         0x0010  /* no further subclassing, overriding */
#define JVM_ACC_SYNCHRONIZED  0x0020  /* wrap method call in monitor lock */
#define JVM_ACC_SUPER         0x0020  /* funky handling of invokespecial */
#define JVM_ACC_VOLATILE      0x0040  /* can not cache in registers */
#define JVM_ACC_BRIDGE        0x0040  /* bridge method generated by compiler */
#define JVM_ACC_TRANSIENT     0x0080  /* not persistant */
#define JVM_ACC_VARARGS       0x0080  /* method declared with variable number of args */
#define JVM_ACC_NATIVE        0x0100  /* implemented in C */
#define JVM_ACC_INTERFACE     0x0200  /* class is an interface */
#define JVM_ACC_ABSTRACT      0x0400  /* no definition provided */
#define JVM_ACC_STRICT	      0x0800  /* strict floating point */
#define JVM_ACC_SYNTHETIC     0x1000  /* compiler-generated class, method or field */

#define JVM_ACC_ANNOTATION    0x2000  /* annotation type */
#define JVM_ACC_ENUM          0x4000  /* field is declared as element of enum */

#define JVM_ACC_PUBLIC_BIT        0
#define JVM_ACC_PRIVATE_BIT       1
#define JVM_ACC_PROTECTED_BIT     2
#define JVM_ACC_STATIC_BIT        3
#define JVM_ACC_FINAL_BIT         4
#define JVM_ACC_SYNCHRONIZED_BIT  5
#define JVM_ACC_SUPER_BIT         5
#define JVM_ACC_VOLATILE_BIT      6
#define JVM_ACC_BRIDGE_BIT        6
#define JVM_ACC_TRANSIENT_BIT     7
#define JVM_ACC_VARARGS_BIT       7
#define JVM_ACC_NATIVE_BIT        8
#define JVM_ACC_INTERFACE_BIT     9
#define JVM_ACC_ABSTRACT_BIT      10
#define JVM_ACC_STRICT_BIT        11
#define JVM_ACC_SYNTHETIC_BIT     12
#define JVM_ACC_ANNOTATION_BIT    13
#define JVM_ACC_ENUM_BIT          14

enum {
    JVM_CONSTANT_Utf8 = 1,
    JVM_CONSTANT_Unicode,		/* unused */
    JVM_CONSTANT_Integer,
    JVM_CONSTANT_Float,
    JVM_CONSTANT_Long,      
    JVM_CONSTANT_Double,
    JVM_CONSTANT_Class,
    JVM_CONSTANT_String,
    JVM_CONSTANT_Fieldref,
    JVM_CONSTANT_Methodref,
    JVM_CONSTANT_InterfaceMethodref,
    JVM_CONSTANT_NameAndType
};

/* Used in the newarray instruction. */

#define JVM_T_BOOLEAN 4
#define JVM_T_CHAR    5
#define JVM_T_FLOAT   6
#define JVM_T_DOUBLE  7
#define JVM_T_BYTE    8
#define JVM_T_SHORT   9
#define JVM_T_INT    10
#define JVM_T_LONG   11

/* JVM method signatures */

#define JVM_SIGNATURE_ARRAY		'['
#define JVM_SIGNATURE_BYTE		'B'
#define JVM_SIGNATURE_CHAR		'C'
#define JVM_SIGNATURE_CLASS		'L'
#define JVM_SIGNATURE_ENDCLASS	        ';'
#define JVM_SIGNATURE_ENUM		'E'
#define JVM_SIGNATURE_FLOAT		'F'
#define JVM_SIGNATURE_DOUBLE            'D'
#define JVM_SIGNATURE_FUNC		'('
#define JVM_SIGNATURE_ENDFUNC	        ')'
#define JVM_SIGNATURE_INT		'I'
#define JVM_SIGNATURE_LONG		'J'
#define JVM_SIGNATURE_SHORT		'S'
#define JVM_SIGNATURE_VOID		'V'
#define JVM_SIGNATURE_BOOLEAN	        'Z'

/*
 * StackMap type tags. Used in the CLDC StackMap attribute
 * as well as the JDK StackMapTable attribute.
 */
enum {
    JVM_STACKMAP_TOP = 0,
    JVM_STACKMAP_INT,
    JVM_STACKMAP_FLOAT,
    JVM_STACKMAP_DOUBLE,
    JVM_STACKMAP_LONG,
    JVM_STACKMAP_NULL,
    JVM_STACKMAP_UNINIT_THIS,
    JVM_STACKMAP_OBJECT,
    JVM_STACKMAP_UNINIT_OBJECT,
};

/* 
 * A function defined by the byte-code verifier and called by the VM.
 * This is not a function implemented in the VM.
 *
 * Returns JNI_FALSE if verification fails. A detailed error message
 * will be places in msg_buf, whose length is specified by buf_len.
 */ 
typedef jboolean (*verifier_fn_t)(JNIEnv *env, 
				  jclass cb,
				  char * msg_buf, 
				  jint buf_len);


/*
 * Support for a VM-independent class format checker.
 */ 
typedef struct {
    unsigned long code;    /* byte code */
    unsigned long excs;    /* exceptions */
    unsigned long etab;    /* catch table */
    unsigned long lnum;    /* line number */
    unsigned long lvar;    /* local vars */
} method_size_info;

typedef struct {
    unsigned int constants;    /* constant pool */
    unsigned int fields;
    unsigned int methods;
    unsigned int interfaces;
    unsigned int fields2;      /* number of static 2-word fields */
    unsigned int innerclasses; /* # of records in InnerClasses attr */

    method_size_info clinit;   /* memory used in clinit */
    method_size_info main;     /* used everywhere else */
} class_size_info;

/* 
 * Functions defined in libjava.so to perform string conversions.
 * 
 */

typedef jstring (*to_java_string_fn_t)(JNIEnv *env, char *str);

typedef char *(*to_c_string_fn_t)(JNIEnv *env, jstring s, jboolean *b);

/* This is the function defined in libjava.so that performs class
 * format checks. This functions fills in size information about
 * the class file and returns:
 *  
 *   0: good
 *  -1: out of memory
 *  -2: bad format
 *  -3: unsupported version
 *  -4: bad class name
 */

typedef jint (*check_format_fn_t)(char *class_name,
				  unsigned char *data,
				  unsigned int data_size,
				  class_size_info *class_size,
				  char *message_buffer,
				  jint buffer_length,
				  jboolean measure_only,
				  jboolean check_relaxed);

#define JVM_RECOGNIZED_CLASS_MODIFIERS (JVM_ACC_PUBLIC | \
					JVM_ACC_FINAL | \
					JVM_ACC_SUPER | \
					JVM_ACC_INTERFACE | \
					JVM_ACC_ABSTRACT | \
                                        JVM_ACC_ANNOTATION | \
					JVM_ACC_SYNTHETIC | \
					JVM_ACC_ENUM)    
       
#define JVM_RECOGNIZED_FIELD_MODIFIERS (JVM_ACC_PUBLIC | \
					JVM_ACC_PRIVATE | \
					JVM_ACC_PROTECTED | \
					JVM_ACC_STATIC | \
					JVM_ACC_FINAL | \
					JVM_ACC_VOLATILE | \
					JVM_ACC_TRANSIENT | \
					JVM_ACC_ENUM | \
					JVM_ACC_SYNTHETIC)

#define JVM_RECOGNIZED_METHOD_MODIFIERS (JVM_ACC_PUBLIC | \
					 JVM_ACC_PRIVATE | \
					 JVM_ACC_PROTECTED | \
					 JVM_ACC_STATIC | \
					 JVM_ACC_FINAL | \
					 JVM_ACC_SYNCHRONIZED | \
					 JVM_ACC_BRIDGE | \
					 JVM_ACC_VARARGS | \
					 JVM_ACC_NATIVE | \
					 JVM_ACC_ABSTRACT | \
					 JVM_ACC_STRICT | \
					 JVM_ACC_SYNTHETIC)


/*************************************************************************
 PART 3: I/O and Network Support
 ************************************************************************/

/* Note that the JVM IO functions are expected to return JVM_IO_ERR
 * when there is any kind of error. The caller can then use the
 * platform specific support (e.g., errno) to get the detailed 
 * error info.  The JVM_GetLastErrorString procedure may also be used
 * to obtain a descriptive error string.
 */
#define JVM_IO_ERR  (-1)

/* For interruptible IO. Returning JVM_IO_INTR indicates that an IO
 * operation has been disrupted by Thread.interrupt. There are a 
 * number of technical difficulties related to interruptible IO that
 * need to be solved. For example, most existing programs do not handle
 * InterruptedIOExceptions specially, they simply treat those as any 
 * IOExceptions, which typically indicate fatal errors.
 *
 * There are also two modes of operation for interruptible IO. In the
 * resumption mode, an interrupted IO operation is guaranteed not to
 * have any side-effects, and can be restarted. In the termination mode,
 * an interrupted IO operation corrupts the underlying IO stream, so
 * that the only reasonable operation on an interrupted stream is to
 * close that stream. The resumption mode seems to be impossible to
 * implement on Win32 and Solaris. Implementing the termination mode is
 * easier, but it's not clear that's the right semantics.
 *
 * Interruptible IO is not supported on Win32.It can be enabled/disabled
 * using a compile-time flag on Solaris. Third-party JVM ports do not 
 * need to implement interruptible IO.
 */
#define JVM_IO_INTR (-2)

/* Write a string into the given buffer, in the platform's local encoding,
 * that describes the most recent system-level error to occur in this thread.
 * Return the length of the string or zero if no error occurred.
 */
JNIEXPORT jint JNICALL
JVM_GetLastErrorString(char *buf, int len);

/*
 * Convert a pathname into native format.  This function does syntactic
 * cleanup, such as removing redundant separator characters.  It modifies
 * the given pathname string in place.
 */
JNIEXPORT char * JNICALL
JVM_NativePath(char *);

/*
 * JVM I/O error codes
 */
#define JVM_EEXIST       -100

/*
 * Open a file descriptor. This function returns a negative error code
 * on error, and a non-negative integer that is the file descriptor on
 * success.  
 */
JNIEXPORT jint JNICALL
JVM_Open(const char *fname, jint flags, jint mode);

/*
 * Close a file descriptor. This function returns -1 on error, and 0
 * on success.
 *
 * fd        the file descriptor to close.
 */
JNIEXPORT jint JNICALL
JVM_Close(jint fd);

/*
 * Read data from a file decriptor into a char array.
 *
 * fd        the file descriptor to read from.
 * buf       the buffer where to put the read data.
 * nbytes    the number of bytes to read.
 *
 * This function returns -1 on error, and 0 on success.
 */
JNIEXPORT jint JNICALL
JVM_Read(jint fd, char *buf, jint nbytes);

/*
 * Write data from a char array to a file decriptor.
 *
 * fd        the file descriptor to read from.
 * buf       the buffer from which to fetch the data.
 * nbytes    the number of bytes to write.
 *
 * This function returns -1 on error, and 0 on success.
 */
JNIEXPORT jint JNICALL
JVM_Write(jint fd, char *buf, jint nbytes);

/*
 * Returns the number of bytes available for reading from a given file
 * descriptor
 */
JNIEXPORT jint JNICALL
JVM_Available(jint fd, jlong *pbytes);

/*
 * Move the file descriptor pointer from whence by offset.
 *
 * fd        the file descriptor to move.
 * offset    the number of bytes to move it by.
 * whence    the start from where to move it.
 *
 * This function returns the resulting pointer location.
 */
JNIEXPORT jlong JNICALL
JVM_Lseek(jint fd, jlong offset, jint whence);

/*
 * Set the length of the file associated with the given descriptor to the given
 * length.  If the new length is longer than the current length then the file
 * is extended; the contents of the extended portion are not defined.  The
 * value of the file pointer is undefined after this procedure returns.
 */
JNIEXPORT jint JNICALL
JVM_SetLength(jint fd, jlong length);

/*
 * Synchronize the file descriptor's in memory state with that of the
 * physical device.  Return of -1 is an error, 0 is OK.
 */
JNIEXPORT jint JNICALL
JVM_Sync(jint fd);

/*
 * Networking library support
 */

JNIEXPORT jint JNICALL
JVM_InitializeSocketLibrary(void);

struct sockaddr;

JNIEXPORT jint JNICALL
JVM_Socket(jint domain, jint type, jint protocol);

JNIEXPORT jint JNICALL
JVM_SocketClose(jint fd);

JNIEXPORT jint JNICALL
JVM_SocketShutdown(jint fd, jint howto);

JNIEXPORT jint JNICALL
JVM_Recv(jint fd, char *buf, jint nBytes, jint flags);

JNIEXPORT jint JNICALL
JVM_Send(jint fd, char *buf, jint nBytes, jint flags);

JNIEXPORT jint JNICALL
JVM_Timeout(int fd, long timeout);

JNIEXPORT jint JNICALL
JVM_Listen(jint fd, jint count);

JNIEXPORT jint JNICALL
JVM_Connect(jint fd, struct sockaddr *him, jint len);

JNIEXPORT jint JNICALL
JVM_Bind(jint fd, struct sockaddr *him, jint len);

JNIEXPORT jint JNICALL
JVM_Accept(jint fd, struct sockaddr *him, jint *len);

JNIEXPORT jint JNICALL
JVM_RecvFrom(jint fd, char *buf, int nBytes,
                  int flags, struct sockaddr *from, int *fromlen);

JNIEXPORT jint JNICALL
JVM_SendTo(jint fd, char *buf, int len,
                int flags, struct sockaddr *to, int tolen);

JNIEXPORT jint JNICALL
JVM_SocketAvailable(jint fd, jint *result);


JNIEXPORT jint JNICALL
JVM_GetSockName(jint fd, struct sockaddr *him, int *len);

JNIEXPORT jint JNICALL
JVM_GetSockOpt(jint fd, int level, int optname, char *optval, int *optlen);

JNIEXPORT jint JNICALL
JVM_SetSockOpt(jint fd, int level, int optname, const char *optval, int optlen);

JNIEXPORT struct protoent * JNICALL
JVM_GetProtoByName(char* name);

JNIEXPORT struct hostent* JNICALL
JVM_GetHostByAddr(const char* name, int len, int type);

JNIEXPORT struct hostent* JNICALL
JVM_GetHostByName(char* name);

JNIEXPORT int JNICALL
JVM_GetHostName(char* name, int namelen);

/* 
 * The standard printing functions supported by the Java VM. (Should they
 * be renamed to JVM_* in the future?  
 */

/* 
 * BE CAREFUL! The following functions do not implement the
 * full feature set of standard C printf formats.
 */
int
jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args);

int
jio_snprintf(char *str, size_t count, const char *fmt, ...);

int
jio_fprintf(FILE *, const char *fmt, ...);

int
jio_vfprintf(FILE *, const char *fmt, va_list args);


JNIEXPORT void * JNICALL
JVM_RawMonitorCreate(void);

JNIEXPORT void JNICALL
JVM_RawMonitorDestroy(void *mon);

JNIEXPORT jint JNICALL
JVM_RawMonitorEnter(void *mon);

JNIEXPORT void JNICALL
JVM_RawMonitorExit(void *mon);

#ifdef JAVASE
/*
 * java.lang.management support
 */
JNIEXPORT void* JNICALL
JVM_GetManagement(jint version);

/* Generics reflection support.
 *
 * Returns information about the given class's EnclosingMethod
 * attribute, if present, or null if the class had no enclosing
 * method.
 *
 * If non-null, the returned array contains three elements. Element 0
 * is the java.lang.Class of which the enclosing method is a member,
 * and elements 1 and 2 are the java.lang.Strings for the enclosing
 * method's name and descriptor, respectively.
 */
JNIEXPORT jobjectArray JNICALL
JVM_GetEnclosingMethodInfo(JNIEnv* env, jclass ofClass);

#endif /* JAVASE */

#ifdef __cplusplus
} /* extern "C" */
#endif /* __cplusplus */

#endif /* !_JAVASOFT_JVM_H_ */