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-rw-r--r--depends/pack200/src/bytes.h284
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diff --git a/depends/pack200/src/bytes.h b/depends/pack200/src/bytes.h
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+/*
+ * Copyright (c) 2001, 2008, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+struct bytes
+{
+ int8_t *ptr;
+ size_t len;
+ int8_t *limit()
+ {
+ return ptr + len;
+ }
+
+ void set(int8_t *ptr_, size_t len_)
+ {
+ ptr = ptr_;
+ len = len_;
+ }
+ void set(const char *str)
+ {
+ ptr = (int8_t *)str;
+ len = strlen(str);
+ }
+ bool inBounds(const void *p); // p in [ptr, limit)
+ void malloc(size_t len_);
+ void realloc(size_t len_);
+ void free();
+ void copyFrom(const void *ptr_, size_t len_, size_t offset = 0);
+ void saveFrom(const void *ptr_, size_t len_);
+ void saveFrom(const char *str)
+ {
+ saveFrom(str, strlen(str));
+ }
+ void copyFrom(bytes &other, size_t offset = 0)
+ {
+ copyFrom(other.ptr, other.len, offset);
+ }
+ void saveFrom(bytes &other)
+ {
+ saveFrom(other.ptr, other.len);
+ }
+ void clear(int fill_byte = 0)
+ {
+ memset(ptr, fill_byte, len);
+ }
+ int8_t *writeTo(int8_t *bp);
+ bool equals(bytes &other)
+ {
+ return 0 == compareTo(other);
+ }
+ int compareTo(bytes &other);
+ bool contains(int8_t c)
+ {
+ return indexOf(c) >= 0;
+ }
+ int indexOf(int8_t c);
+ // substrings:
+ static bytes of(int8_t *ptr, size_t len)
+ {
+ bytes res;
+ res.set(ptr, len);
+ return res;
+ }
+ bytes slice(size_t beg, size_t end)
+ {
+ bytes res;
+ res.ptr = ptr + beg;
+ res.len = end - beg;
+ assert(res.len == 0 || inBounds(res.ptr) && inBounds(res.limit() - 1));
+ return res;
+ }
+ // building C strings inside byte buffers:
+ bytes &strcat(const char *str)
+ {
+ ::strcat((char *)ptr, str);
+ return *this;
+ }
+ bytes &strcat(bytes &other)
+ {
+ ::strncat((char *)ptr, (char *)other.ptr, other.len);
+ return *this;
+ }
+ char *strval()
+ {
+ assert(strlen((char *)ptr) == len);
+ return (char *)ptr;
+ }
+};
+#define BYTES_OF(var) (bytes::of((int8_t *)&(var), sizeof(var)))
+
+struct fillbytes
+{
+ bytes b;
+ size_t allocated;
+
+ int8_t *base()
+ {
+ return b.ptr;
+ }
+ size_t size()
+ {
+ return b.len;
+ }
+ int8_t *limit()
+ {
+ return b.limit();
+ } // logical limit
+ void setLimit(int8_t *lp)
+ {
+ assert(isAllocated(lp));
+ b.len = lp - b.ptr;
+ }
+ int8_t *end()
+ {
+ return b.ptr + allocated;
+ } // physical limit
+ int8_t *loc(size_t o)
+ {
+ assert(o < b.len);
+ return b.ptr + o;
+ }
+ void init()
+ {
+ allocated = 0;
+ b.set(nullptr, 0);
+ }
+ void init(size_t s)
+ {
+ init();
+ ensureSize(s);
+ }
+ void free()
+ {
+ if (allocated != 0)
+ b.free();
+ allocated = 0;
+ }
+ void empty()
+ {
+ b.len = 0;
+ }
+ int8_t *grow(size_t s); // grow so that limit() += s
+ int getByte(uint i)
+ {
+ return *loc(i) & 0xFF;
+ }
+ void addByte(int8_t x)
+ {
+ *grow(1) = x;
+ }
+ void ensureSize(size_t s); // make sure allocated >= s
+ void trimToSize()
+ {
+ if (allocated > size())
+ b.realloc(allocated = size());
+ }
+ bool canAppend(size_t s)
+ {
+ return allocated > b.len + s;
+ }
+ bool isAllocated(int8_t *p)
+ {
+ return p >= base() && p <= end();
+ } // asserts
+ void set(bytes &src)
+ {
+ set(src.ptr, src.len);
+ }
+
+ void set(int8_t *ptr, size_t len)
+ {
+ b.set(ptr, len);
+ allocated = 0; // mark as not reallocatable
+ }
+
+ // block operations on resizing byte buffer:
+ fillbytes &append(const void *ptr_, size_t len_)
+ {
+ memcpy(grow(len_), ptr_, len_);
+ return (*this);
+ }
+ fillbytes &append(bytes &other)
+ {
+ return append(other.ptr, other.len);
+ }
+ fillbytes &append(const char *str)
+ {
+ return append(str, strlen(str));
+ }
+};
+
+struct ptrlist : fillbytes
+{
+ typedef const void *cvptr;
+ int length()
+ {
+ return (int)(size() / sizeof(cvptr));
+ }
+ cvptr *base()
+ {
+ return (cvptr *)fillbytes::base();
+ }
+ cvptr &get(int i)
+ {
+ return *(cvptr *)loc(i * sizeof(cvptr));
+ }
+ cvptr *limit()
+ {
+ return (cvptr *)fillbytes::limit();
+ }
+ void add(cvptr x)
+ {
+ *(cvptr *)grow(sizeof(x)) = x;
+ }
+ void popTo(int l)
+ {
+ assert(l <= length());
+ b.len = l * sizeof(cvptr);
+ }
+ int indexOf(cvptr x);
+ bool contains(cvptr x)
+ {
+ return indexOf(x) >= 0;
+ }
+ void freeAll(); // frees every ptr on the list, plus the list itself
+};
+// Use a macro rather than mess with subtle mismatches
+// between member and non-member function pointers.
+#define PTRLIST_QSORT(ptrls, fn) ::qsort((ptrls).base(), (ptrls).length(), sizeof(void *), fn)
+
+struct intlist : fillbytes
+{
+ int length()
+ {
+ return (int)(size() / sizeof(int));
+ }
+ int *base()
+ {
+ return (int *)fillbytes::base();
+ }
+ int &get(int i)
+ {
+ return *(int *)loc(i * sizeof(int));
+ }
+ int *limit()
+ {
+ return (int *)fillbytes::limit();
+ }
+ void add(int x)
+ {
+ *(int *)grow(sizeof(x)) = x;
+ }
+ void popTo(int l)
+ {
+ assert(l <= length());
+ b.len = l * sizeof(int);
+ }
+ int indexOf(int x);
+ bool contains(int x)
+ {
+ return indexOf(x) >= 0;
+ }
+};