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comparison src/share/vm/classfile/javaClasses.hpp @ 2418:352622fd140a

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7032129: Native memory usage grow unexpectedly for vm/oom/*InternedString tests Reviewed-by: kvn, kamg, jcoomes
author never
date Thu, 31 Mar 2011 14:00:41 -0700
parents c7f3d0b4570f
children 01147d8aac1d
comparison
equal deleted inserted replaced
2416:38fea01eb669 2418:352622fd140a
106 static char* as_utf8_string(oop java_string); 106 static char* as_utf8_string(oop java_string);
107 static char* as_utf8_string(oop java_string, char* buf, int buflen); 107 static char* as_utf8_string(oop java_string, char* buf, int buflen);
108 static char* as_utf8_string(oop java_string, int start, int len); 108 static char* as_utf8_string(oop java_string, int start, int len);
109 static char* as_platform_dependent_str(Handle java_string, TRAPS); 109 static char* as_platform_dependent_str(Handle java_string, TRAPS);
110 static jchar* as_unicode_string(oop java_string, int& length); 110 static jchar* as_unicode_string(oop java_string, int& length);
111
112 // Compute the hash value for a java.lang.String object which would
113 // contain the characters passed in. This hash value is used for at
114 // least two purposes.
115 //
116 // (a) As the hash value used by the StringTable for bucket selection
117 // and comparison (stored in the HashtableEntry structures). This
118 // is used in the String.intern() method.
119 //
120 // (b) As the hash value used by the String object itself, in
121 // String.hashCode(). This value is normally calculate in Java code
122 // in the String.hashCode method(), but is precomputed for String
123 // objects in the shared archive file.
124 //
125 // For this reason, THIS ALGORITHM MUST MATCH String.hashCode().
126 static unsigned int hash_string(jchar* s, int len) {
127 unsigned int h = 0;
128 while (len-- > 0) {
129 h = 31*h + (unsigned int) *s;
130 s++;
131 }
132 return h;
133 }
134 static unsigned int hash_string(oop java_string);
111 135
112 static bool equals(oop java_string, jchar* chars, int len); 136 static bool equals(oop java_string, jchar* chars, int len);
113 137
114 // Conversion between '.' and '/' formats 138 // Conversion between '.' and '/' formats
115 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } 139 static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); }