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+*.o
+
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+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
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+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+   limitations under the License.

packededge/account_data.cc

+/*
+   Copyright 2011 Andrea Nall
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#include <packededge/account_data.h>
+#include <packededge/edge_data.h>
+
+#include <deque>
+
+namespace packededge {
+    void AccountData::rewriteAccounts(AccountData *acct,r_off_t cur) {
+        std::deque<AccountData *> pending;
+        pending.push_front( acct );
+
+        while( ! pending.empty() ) {
+            AccountData *cand = pending.front();
+            pending.pop_front();
+
+            _pe_swap((r_off_t&)cand->_left);
+            _pe_swap((r_off_t&)cand->_right);
+            _pe_swap((r_off_t&)cand->_edges);
+
+            if ( cand->_left != 0 ) {
+                cand->_left = (AccountData*)( cur + (r_off_t)(cand->_left) );
+                pending.push_back(cand->_left);
+            }
+            if ( cand->_right != 0 ) {
+                cand->_right = (AccountData*)( cur + (r_off_t)(cand->_right) );
+                pending.push_back(cand->_right);
+            }
+            if ( cand->_edges != 0 ) {
+                cand->_edges = (EdgeData*)( cur + (r_off_t)(cand->_edges) );
+                cand->_edges->rewrite(cur);
+            }
+        }
+    }
+
+    const AccountData *AccountData::find(const char *what, const AccountData *where) {
+        while ( where != 0 ) {
+            int cmp = strcmp(what,where->_name);
+
+            if ( cmp == 0 )
+                return where;
+            else if ( cmp < 0 )
+                where = where->left();
+            else if ( cmp > 0 )
+                where = where->right();
+        }
+        return 0;
+    }
+
+    bool AccountData::isIndividual() const {
+        return _journalType == 'P' || _journalType == 'I';
+    }
+    
+    bool AccountData::isCommunity() const {
+        return _journalType == 'C';
+    }
+}

packededge/account_data.h

+/*
+   Copyright 2011 Andrea Nall
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#ifndef ACCOUNT_DATA_H_GH2JMQIX
+#define ACCOUNT_DATA_H_GH2JMQIX
+#include <packededge/shared.h>
+#include <stdint.h>
+
+namespace packededge {
+
+class EdgeData;
+class PackedFile;
+
+class AccountData {
+private:
+    struct {
+        AccountData *_left; _pe_32bit_spacer( __sp_a );
+        AccountData *_right; _pe_32bit_spacer( __sp_b );
+        EdgeData *_edges; _pe_32bit_spacer( __sp_c );
+        char _journalType;
+        uint32_t _uid;
+        const char _name[];
+    } __attribute__((__packed__));
+private:
+    AccountData();
+
+    static void rewriteAccounts(AccountData *acct,r_off_t cur);
+public:
+    uint32_t userid() const { return _uid; }
+    const char *name() const { return _name; }
+
+    const EdgeData *edges() const { return _edges; }
+    const AccountData *left() const { return _left; };
+    const AccountData *right() const { return _right; };
+
+    static const AccountData *find(const char *what, const AccountData *root);
+
+    bool isIndividual() const;
+    bool isCommunity() const;
+    friend class PackedFile;
+};
+
+}
+
+#endif /* end of include guard: ACCOUNT_DATA_H_GH2JMQIX */

packededge/edge_data.cc

+/*
+   Copyright 2011 Andrea Nall
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#include <packededge/edge_data.h>
+
+#include <packededge/account_data.h>
+
+namespace packededge {
+    void EdgeData::rewrite(r_off_t cur) {
+        _trusted    = rewrite( cur, _trusted );
+        _trusted_by = rewrite( cur, _trusted_by );
+
+        _watched    = rewrite( cur, _watched );
+        _watched_by = rewrite( cur, _watched_by );
+
+        _member     = rewrite( cur, _member );
+        _member_of  = rewrite( cur, _member_of );
+
+        _maintainer = rewrite( cur, _maintainer );
+    }
+
+    AccountList* EdgeData::rewrite(r_off_t cur, AccountList *orig) {
+        if ( orig == 0 ) return 0;
+
+        _pe_swap( (r_off_t&)orig );
+        AccountList *rv = (AccountList *)( cur + (r_off_t)orig );
+
+        if ( orig == 0 ) return 0;
+
+        _pe_swap( rv->count );
+        for ( int i = 0; i < rv->count; i++ ) {
+            _pe_swap( (r_off_t&)rv->accts[i].acct );
+            rv->accts[i].acct = (AccountData*)( cur + (r_off_t)(rv->accts[i].acct) );
+        }
+
+        return rv;
+    }
+}

packededge/edge_data.h

+/*
+   Copyright 2011 Andrea Nall
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#ifndef EDGE_DATA_H_YETO1ANO
+#define EDGE_DATA_H_YETO1ANO
+#include <packededge/shared.h>
+#include <stdint.h>
+
+namespace packededge {
+
+class AccountData;
+
+struct AccountList {
+    uint32_t count;
+    struct {
+        AccountData *acct;
+        _pe_32bit_spacer( __sp );
+    } accts[];
+} __attribute__((__packed__));
+
+class EdgeData {
+private:
+    struct {
+        AccountList *_trusted; _pe_32bit_spacer( __sp_a );
+        AccountList *_trusted_by; _pe_32bit_spacer( __sp_b );
+        AccountList *_watched; _pe_32bit_spacer( __sp_c );
+        AccountList *_watched_by; _pe_32bit_spacer( __sp_d );
+        AccountList *_member; _pe_32bit_spacer( __sp_e );
+        AccountList *_member_of; _pe_32bit_spacer( __sp_f );
+        AccountList *_maintainer; _pe_32bit_spacer( __sp_g );
+    } __attribute__((__packed__));
+
+    EdgeData();
+
+    void rewrite(r_off_t cur);
+    AccountList *rewrite(r_off_t cur, AccountList *orig);
+public:
+    const AccountList *trusted() const { return _trusted; }
+    const AccountList *trusted_by() const { return _trusted_by; }
+
+    const AccountList *watched() const { return _watched; }
+    const AccountList *watched_by() const { return _watched_by; }
+
+    const AccountList *member() const { return _member; }
+    const AccountList *member_of() const { return _member_of; }
+    const AccountList *maintainer() const { return _maintainer; }
+
+    friend class AccountData;
+};
+
+}
+
+#endif /* end of include guard: EDGE_DATA_H_YETO1ANO */

packededge/packed_file.cc

+/*
+   Copyright 2011 Andrea Nall
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#include <packededge/shared.h>
+#include <packededge/packed_file.h>
+#include <packededge/account_data.h>
+#include <packededge/edge_data.h>
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#ifdef SYS_32BIT
+typedef uint32_t _my_ptr_size;
+#else
+typedef uint64_t _my_ptr_size;
+#endif
+
+namespace packededge {
+    
+
+    class __DummyClass {
+    public:
+        __DummyClass() {
+            if ( sizeof(_my_ptr_size) != sizeof(void*) ) {
+                fprintf(stderr,"ERROR! `packedege` library compiled with improper defines\n");
+                fprintf(stderr,"Pointer is %li bytes, compiled for %li bytes\n",sizeof(void*),sizeof(_my_ptr_size));
+                abort();
+            }
+            union {
+                char x[2];
+                uint16_t y;
+            } foo;
+            foo.y = 0x1234;
+            _pe_swap( foo.y );
+            if ( foo.x[0] != 0x34 ) {
+                fprintf(stderr,"ERROR! `packedege` library compiled for incorrect endianness\n");
+                abort();
+            }
+        };
+    };
+
+    static __DummyClass dummy;
+    
+    
+    PackedFile::PackedFile() {
+        _header = 0;
+    }
+
+    void PackedFile::gotData(void *ptr) {
+        _header = (_HeaderData*)ptr;
+
+        _pe_swap(_header->_version);
+        _pe_swap(_header->_datecode);
+        _pe_swap((r_off_t&)_header->acct);
+        _pe_swap((r_off_t&)_header->extension_offset);
+
+        _header->acct = (AccountData*)( (r_off_t)ptr + (r_off_t)(_header->acct) );
+
+        AccountData::rewriteAccounts( _header->acct, (r_off_t)ptr );
+    }
+
+    const AccountData *PackedFile::getAccount(const char *what) const {
+        return AccountData::find(what,_header->acct);
+    }
+}

packededge/packed_file.h

+/*
+   Copyright 2011 Andrea Nall
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#ifndef PACKED_FILE_H_1G18HYB9
+#define PACKED_FILE_H_1G18HYB9
+#include <packededge/shared.h>
+
+namespace packededge {
+
+class AccountData;
+class EdgeData;
+
+class PackedFile {
+private:
+    struct _HeaderData {
+        uint16_t _version;
+        uint32_t _datecode;
+        AccountData *acct; _pe_32bit_spacer( __sp_a );
+        r_off_t extension_offset;  _pe_32bit_spacer( __sp_b );
+    } __attribute__((__packed__));
+
+    _HeaderData *_header;
+protected:
+    PackedFile();
+    void gotData(void *);
+
+    virtual ~PackedFile() {}
+public:
+    uint16_t version() const { return _header->_version; }
+    uint32_t datecode() const { return _header->_datecode; }
+
+    const AccountData *getAccount(const char *what) const;
+};
+
+}
+
+#endif /* end of include guard: PACKED_FILE_H_1G18HYB9 */

packededge/raw_data_file.cc

+/*
+   Copyright 2011 Andrea Nall
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#include <packededge/raw_data_file.h>
+#include <stdio.h>
+
+namespace packededge {
+    RawDataFile::RawDataFile(void *ptr) {
+        gotData(ptr);
+    }
+
+    RawDataFile::~RawDataFile() {
+        printf("Should free!\n");
+    }
+}

packededge/raw_data_file.h

+/*
+   Copyright 2011 Andrea Nall
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#ifndef RAW_DATA_FILE_H_JQBV1R0X
+#define RAW_DATA_FILE_H_JQBV1R0X
+#include <packededge/packed_file.h>
+
+namespace packededge {
+
+class RawDataFile : public PackedFile {
+private:
+public:
+    RawDataFile(void *ptr);
+
+    virtual ~RawDataFile();
+};
+}
+
+#endif /* end of include guard: RAW_DATA_FILE_H_JQBV1R0X */

packededge/shared.h

+/*
+   Copyright 2011 Andrea Nall
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#ifndef SHARED_H_OM8GIBOM
+#define SHARED_H_OM8GIBOM
+#include <stdint.h>
+
+namespace packededge {
+
+#ifdef SYS_32BIT
+#   define _pe_32bit_spacer(x) uint32_t x
+typedef uint32_t r_off_t;
+#else
+#   define _pe_32bit_spacer(x)
+typedef uint64_t r_off_t;
+#endif
+
+inline void endian_swap(uint16_t& x) {
+    x = (x>>8) | 
+        (x<<8);
+}
+
+inline void endian_swap(uint32_t& x) {
+    x = (x>>24) | 
+        ((x<<8) & 0x00FF0000) |
+        ((x>>8) & 0x0000FF00) |
+        (x<<24);
+}
+
+// __int64 for MSVC, "long long" for gcc
+inline void endian_swap(uint64_t& x) {
+    x = (x>>56) | 
+        ((x<<40) & 0x00FF000000000000) |
+        ((x<<24) & 0x0000FF0000000000) |
+        ((x<<8)  & 0x000000FF00000000) |
+        ((x>>8)  & 0x00000000FF000000) |
+        ((x>>24) & 0x0000000000FF0000) |
+        ((x>>40) & 0x000000000000FF00) |
+        (x<<56);
+}
+
+#ifdef BIG_ENDIAN
+#   define _pe_swap(x) endian_swap(x)
+#else
+#   define _pe_swap(x)
+#endif
+
+}
+
+#endif /* end of include guard: SHARED_H_OM8GIBOM */
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