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/*
 * @(#)hprof_b_spec.h	1.4 05/11/17
 * 
 * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * -Redistribution of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 * 
 * -Redistribution in binary form must reproduce the above copyright notice, 
 *  this list of conditions and the following disclaimer in the documentation
 *  and/or other materials provided with the distribution.
 * 
 * Neither the name of Sun Microsystems, Inc. or the names of contributors may 
 * be used to endorse or promote products derived from this software without 
 * specific prior written permission.
 * 
 * This software is provided "AS IS," without a warranty of any kind. ALL 
 * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
 * ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
 * OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
 * AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
 * AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST 
 * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, 
 * INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY 
 * OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, 
 * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 * 
 * You acknowledge that this software is not designed, licensed or intended
 * for use in the design, construction, operation or maintenance of any
 * nuclear facility.
 */

#ifndef HPROF_B_SPEC_H
#define HPROF_B_SPEC_H

/* Hprof binary format enums and spec. */

/* Need to #define or typedef HprofId before including this file. 
 *    hprof used ObjectIndex or 4 bytes, but it can be 4 or 8 byte type.
 */

/* -------------------------------------------------------------------- */
/* -------------------------------------------------------------------- */
/* -------------------------------------------------------------------- */

/*
 * hprof binary format: (result either written to a file or sent over
 * the network).
 * 
 * WARNING: This format is still under development, and is subject to
 * change without notice.
 *
 *  header    "JAVA PROFILE 1.0.1" or "JAVA PROFILE 1.0.2" (0-terminated)
 *  u4        size of identifiers. Identifiers are used to represent
 *            UTF8 strings, objects, stack traces, etc. They usually
 *            have the same size as host pointers. For example, on
 *            Solaris and Win32, the size is 4.
 * u4         high word 
 * u4         low word    number of milliseconds since 0:00 GMT, 1/1/70
 * [record]*  a sequence of records.
 */

/*
 * Record format:
 *
 * u1         a TAG denoting the type of the record
 * u4         number of *microseconds* since the time stamp in the
 *            header. (wraps around in a little more than an hour)
 * u4         number of bytes *remaining* in the record. Note that
 *            this number excludes the tag and the length field itself.
 * [u1]*      BODY of the record (a sequence of bytes)
 */

/*
 * The following TAGs are supported:
 *
 * TAG           BODY       notes
 *----------------------------------------------------------
 * HPROF_UTF8               a UTF8-encoded name  
 *
 *               id         name ID
 *               [u1]*      UTF8 characters (no trailing zero)
 *
 * HPROF_LOAD_CLASS         a newly loaded class
 *
 *                u4        class serial number (> 0)
 *                id        class object ID
 *                u4        stack trace serial number
 *                id        class name ID
 *
 * HPROF_UNLOAD_CLASS       an unloading class
 *
 *                u4        class serial_number
 *
 * HPROF_FRAME              a Java stack frame
 *
 *                id        stack frame ID
 *                id        method name ID
 *                id        method signature ID
 *                id        source file name ID
 *                u4        class serial number
 *                i4        line number. >0: normal
 *                                       -1: unknown
 *                                       -2: compiled method
 *                                       -3: native method
 *
 * HPROF_TRACE              a Java stack trace
 *
 *               u4         stack trace serial number
 *               u4         thread serial number
 *               u4         number of frames
 *               [id]*      stack frame IDs
 *
 *
 * HPROF_ALLOC_SITES        a set of heap allocation sites, obtained after GC
 *
 *               u2         flags 0x0001: incremental vs. complete
 *                                0x0002: sorted by allocation vs. live
 *                                0x0004: whether to force a GC
 *               u4         cutoff ratio
 *               u4         total live bytes
 *               u4         total live instances
 *               u8         total bytes allocated
 *               u8         total instances allocated
 *               u4         number of sites that follow
 *               [u1        is_array: 0:  normal object
 *                                    2:  object array
 *                                    4:  boolean array
 *                                    5:  char array
 *                                    6:  float array
 *                                    7:  double array
 *                                    8:  byte array
 *                                    9:  short array
 *                                    10: int array
 *                                    11: long array
 *                u4        class serial number (may be zero during startup)
 *                u4        stack trace serial number
 *                u4        number of bytes alive
 *                u4        number of instances alive
 *                u4        number of bytes allocated
 *                u4]*      number of instance allocated
 *
 * HPROF_START_THREAD       a newly started thread.
 *
 *               u4         thread serial number (> 0)
 *               id         thread object ID
 *               u4         stack trace serial number
 *               id         thread name ID
 *               id         thread group name ID
 *               id         thread group parent name ID
 *
 * HPROF_END_THREAD         a terminating thread. 
 *
 *               u4         thread serial number
 *
 * HPROF_HEAP_SUMMARY       heap summary
 *
 *               u4         total live bytes
 *               u4         total live instances
 *               u8         total bytes allocated
 *               u8         total instances allocated
 *
 * HPROF_HEAP_DUMP or HPROF_HEAP_DUMP_SEGMENT          denote a heap dump
 *
 *               [heap dump sub-records]*
 *
 *                          There are four kinds of heap dump sub-records:
 *
 *               u1         sub-record type
 *
 *               HPROF_GC_ROOT_UNKNOWN         unknown root
 *
 *                          id         object ID
 *
 *               HPROF_GC_ROOT_THREAD_OBJ      thread object
 *
 *                          id         thread object ID  (may be 0 for a
 *                                     thread newly attached through JNI)
 *                          u4         thread sequence number
 *                          u4         stack trace sequence number
 *
 *               HPROF_GC_ROOT_JNI_GLOBAL      JNI global ref root
 *
 *                          id         object ID
 *                          id         JNI global ref ID
 *
 *               HPROF_GC_ROOT_JNI_LOCAL       JNI local ref
 *
 *                          id         object ID
 *                          u4         thread serial number
 *                          u4         frame # in stack trace (-1 for empty)
 *
 *               HPROF_GC_ROOT_JAVA_FRAME      Java stack frame
 *
 *                          id         object ID
 *                          u4         thread serial number
 *                          u4         frame # in stack trace (-1 for empty)
 *
 *               HPROF_GC_ROOT_NATIVE_STACK    Native stack
 *
 *                          id         object ID
 *                          u4         thread serial number
 *
 *               HPROF_GC_ROOT_STICKY_CLASS    System class
 *
 *                          id         object ID
 *
 *               HPROF_GC_ROOT_THREAD_BLOCK    Reference from thread block
 *
 *                          id         object ID
 *                          u4         thread serial number
 *
 *               HPROF_GC_ROOT_MONITOR_USED    Busy monitor
 *
 *                          id         object ID
 *
 *               HPROF_GC_CLASS_DUMP           dump of a class object
 *
 *                          id         class object ID
 *                          u4         stack trace serial number
 *                          id         super class object ID
 *                          id         class loader object ID
 *                          id         signers object ID
 *                          id         protection domain object ID
 *                          id         reserved
 *                          id         reserved
 *
 *                          u4         instance size (in bytes)
 *
 *                          u2         size of constant pool
 *                          [u2,       constant pool index,
 *                           ty,       type 
 *                                     2:  object
 *                                     4:  boolean
 *                                     5:  char
 *                                     6:  float
 *                                     7:  double
 *                                     8:  byte
 *                                     9:  short
 *                                     10: int
 *                                     11: long
 *                           vl]*      and value
 *
 *                          u2         number of static fields
 *                          [id,       static field name,
 *                           ty,       type,
 *                           vl]*      and value
 *
 *                          u2         number of inst. fields (not inc. super)
 *                          [id,       instance field name,
 *                           ty]*      type
 *
 *               HPROF_GC_INSTANCE_DUMP        dump of a normal object
 *
 *                          id         object ID
 *                          u4         stack trace serial number
 *                          id         class object ID
 *                          u4         number of bytes that follow
 *                          [vl]*      instance field values (class, followed
 *                                     by super, super's super ...)
 *
 *               HPROF_GC_OBJ_ARRAY_DUMP       dump of an object array
 *
 *                          id         array object ID
 *                          u4         stack trace serial number
 *                          u4         number of elements
 *                          id         array class ID
 *                          [id]*      elements
 *
 *               HPROF_GC_PRIM_ARRAY_DUMP      dump of a primitive array
 *
 *                          id         array object ID
 *                          u4         stack trace serial number
 *                          u4         number of elements
 *                          u1         element type
 *                                     4:  boolean array
 *                                     5:  char array
 *                                     6:  float array
 *                                     7:  double array
 *                                     8:  byte array
 *                                     9:  short array
 *                                     10: int array
 *                                     11: long array
 *                          [u1]*      elements
 *
 * HPROF_HEAP_DUMP_END      terminates series of heap dump segments
 *
 * HPROF_CPU_SAMPLES        a set of sample traces of running threads
 *
 *                u4        total number of samples
 *                u4        # of traces
 *               [u4        # of samples
 *                u4]*      stack trace serial number
 *
 * HPROF_CONTROL_SETTINGS   the settings of on/off switches
 *
 *                u4        0x00000001: alloc traces on/off
 *                          0x00000002: cpu sampling on/off
 *                u2        stack trace depth
 *
 */

typedef enum HprofTag {
    HPROF_UTF8                    = 0x01,
    HPROF_LOAD_CLASS              = 0x02,
    HPROF_UNLOAD_CLASS            = 0x03,
    HPROF_FRAME                   = 0x04,
    HPROF_TRACE                   = 0x05,
    HPROF_ALLOC_SITES             = 0x06,
    HPROF_HEAP_SUMMARY            = 0x07,
    HPROF_START_THREAD            = 0x0A,
    HPROF_END_THREAD              = 0x0B,
    HPROF_HEAP_DUMP               = 0x0C,
    HPROF_HEAP_DUMP_SEGMENT       = 0x1C, /* 1.0.2 only */
    HPROF_HEAP_DUMP_END           = 0x2C, /* 1.0.2 only */
    HPROF_CPU_SAMPLES             = 0x0D,
    HPROF_CONTROL_SETTINGS        = 0x0E
} HprofTag;

/* 
 * Heap dump constants
 */

typedef enum HprofGcTag {
    HPROF_GC_ROOT_UNKNOWN       = 0xFF,
    HPROF_GC_ROOT_JNI_GLOBAL    = 0x01,
    HPROF_GC_ROOT_JNI_LOCAL     = 0x02,
    HPROF_GC_ROOT_JAVA_FRAME    = 0x03,
    HPROF_GC_ROOT_NATIVE_STACK  = 0x04,
    HPROF_GC_ROOT_STICKY_CLASS  = 0x05,
    HPROF_GC_ROOT_THREAD_BLOCK  = 0x06,
    HPROF_GC_ROOT_MONITOR_USED  = 0x07,
    HPROF_GC_ROOT_THREAD_OBJ    = 0x08,
    HPROF_GC_CLASS_DUMP         = 0x20,
    HPROF_GC_INSTANCE_DUMP      = 0x21,
    HPROF_GC_OBJ_ARRAY_DUMP     = 0x22,
    HPROF_GC_PRIM_ARRAY_DUMP    = 0x23
} HprofGcTag;

enum HprofType {
	HPROF_ARRAY_OBJECT 	= 1,
	HPROF_NORMAL_OBJECT 	= 2,
	HPROF_BOOLEAN 		= 4,
	HPROF_CHAR 		= 5,
	HPROF_FLOAT 		= 6,
	HPROF_DOUBLE 		= 7,
	HPROF_BYTE 		= 8,
	HPROF_SHORT 		= 9,
	HPROF_INT 		= 10,
	HPROF_LONG 		= 11
};
typedef unsigned char HprofType;

#define HPROF_TYPE_SIZES 			\
    {						\
        /*Object?*/	sizeof(HprofId), 	\
        /*Object?*/	sizeof(HprofId), 	\
        /*Array*/	sizeof(HprofId), 	\
        /*Object?*/	sizeof(HprofId), 	\
        /*jboolean*/ 	1, 			\
        /*jchar*/ 	2, 			\
        /*jfloat*/ 	4, 			\
        /*jdouble*/ 	8, 			\
        /*jbyte*/	1, 			\
        /*jshort*/	2, 			\
        /*jint*/	4, 			\
        /*jlong*/	8 			\
    }

#define HPROF_TYPE_IS_PRIMITIVE(ty)  ((ty)>=HPROF_BOOLEAN)

#endif


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