Mobile API implementation

api for mobile client
support for openssl 1.1.0+

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "external/unbound"]
+	path = external/unbound
+	url = https://github.com/monero-project/unbound
+	branch = monero

CMakeLists.txt

@@ -620,7 +620,7 @@ endif()
 include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
 if(MINGW)
   set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Wa,-mbig-obj")
-  set(EXTRA_LIBRARIES mswsock;ws2_32;iphlpapi)
+  set(EXTRA_LIBRARIES mswsock;ws2_32;crypt32;iphlpapi)
 elseif(APPLE OR FREEBSD OR OPENBSD OR ANDROID)
   set(EXTRA_LIBRARIES "")
 elseif(NOT MSVC)

README.md

@@ -20,7 +20,7 @@ BixBite inherited all the best from Sumocoin and intends to organize a faster pa
 ## Coin Supply & Emission
 
 - **Total supply**: **688 009 000** Bixbite. About ~5% was premined to reserve for future development 
-- **Coin symbol**: **BXB**
+- **Coin symbol**: **bixbite**
 - **Hash algorithm**: CryptoNight Heavy (Proof-Of-Work)
 
 ## About this Project

cmake/test-static-assert.c

@@ -1,4 +1,5 @@
 // Copyright (c) 2014-2016, The Monero Project
+// Copyright (c) 2017-2018, The Bixbite Project
 // 
 // All rights reserved.
 // 

external/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Copyright (c) 2014-2016, The Monero Project
+# Copyright (c) 2014-2017, The Monero Project
 # 
 # All rights reserved.
 # 
@@ -34,11 +34,12 @@
 # We always compile if we are building statically to reduce static dependency issues...
 # ...except for FreeBSD, because FreeBSD is a special case that doesn't play well with
 # others.
-
-find_package(Miniupnpc QUIET)
+if(NOT IOS)
+    find_package(Miniupnpc QUIET)
+endif()
 
 # If we have the correct shared version and we're not building static, use it
-if(STATIC)
+if(STATIC OR IOS)
  set(USE_SHARED_MINIUPNPC false)
 elseif(MINIUPNP_FOUND AND MINIUPNPC_VERSION_1_7_OR_HIGHER)
  set(USE_SHARED_MINIUPNPC true)
@@ -98,3 +99,4 @@ else()
 endif()
 
 add_subdirectory(db_drivers)
+add_subdirectory(easylogging++)

external/boost/archive/portable_binary_oarchive.hpp

@@ -41,19 +41,24 @@ class portable_binary_oarchive_exception :
     public boost::archive::archive_exception
 {
 public:
-    typedef enum {
+    enum exception_code {
         invalid_flags 
-    } exception_code;
-    portable_binary_oarchive_exception(exception_code c = invalid_flags )
+    } m_exception_code ;
+    portable_binary_oarchive_exception(exception_code c = invalid_flags ) :
+        boost::archive::archive_exception(boost::archive::archive_exception::other_exception),
+        m_exception_code(c)
     {}
     virtual const char *what( ) const throw( )
     {
         const char *msg = "programmer error";
-        switch(code){
+        switch(m_exception_code){
         case invalid_flags:
             msg = "cannot be both big and little endian";
+            break;
         default:
-            boost::archive::archive_exception::what();
+            msg = boost::archive::archive_exception::what();
+            assert(false);
+            break;
         }
         return msg;
     }

external/db_drivers/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Copyright (c) 2014-2016, The Monero Project
+# Copyright (c) 2014-2017, The Monero Project
 # 
 # All rights reserved.
 # 

external/db_drivers/liblmdb/.gitignore

@@ -0,0 +1,23 @@
+mtest
+mtest[23456]
+testdb
+mdb_copy
+mdb_stat
+mdb_dump
+mdb_load
+*.lo
+*.[ao]
+*.so
+*.exe
+*[~#]
+*.bak
+*.orig
+*.rej
+*.gcov
+*.gcda
+*.gcno
+core
+core.*
+valgrind.*
+man/
+html/

external/db_drivers/liblmdb/CMakeLists.txt

@@ -1,21 +1,21 @@
-# Copyright (c) 2014-2016, The Monero Project
-#
+# Copyright (c) 2014-2017, The Monero Project
+# 
 # All rights reserved.
-#
+# 
 # Redistribution and use in source and binary forms, with or without modification, are
 # permitted provided that the following conditions are met:
-#
+# 
 # 1. Redistributions of source code must retain the above copyright notice, this list of
 #    conditions and the following disclaimer.
-#
+# 
 # 2. Redistributions 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.
-#
+# 
 # 3. Neither the name of the copyright holder nor the names of its contributors may be
 #    used to endorse or promote products derived from this software without specific
 #    prior written permission.
-#
+# 
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
@@ -34,6 +34,7 @@ if(ANDROID)
   add_definitions("-DANDROID=1")
 endif()
 
+
 set (lmdb_sources
 mdb.c
 midl.c)

external/db_drivers/liblmdb/lmdb.h

@@ -311,6 +311,8 @@ typedef void (MDB_rel_func)(MDB_val *item, void *oldptr, void *newptr, void *rel
 #define MDB_NORDAHEAD	0x800000
 	/** don't initialize malloc'd memory before writing to datafile */
 #define MDB_NOMEMINIT	0x1000000
+	/** use the previous snapshot rather than the latest one */
+#define MDB_PREVSNAPSHOT	0x2000000
 /** @} */
 
 /**	@defgroup	mdb_dbi_open	Database Flags
@@ -622,6 +624,12 @@ int  mdb_env_create(MDB_env **env);
 	 *		caller is expected to overwrite all of the memory that was
 	 *		reserved in that case.
 	 *		This flag may be changed at any time using #mdb_env_set_flags().
+	 *	<li>#MDB_PREVSNAPSHOT
+	 *		Open the environment with the previous snapshot rather than the latest
+	 *		one. This loses the latest transaction, but may help work around some
+	 *		types of corruption. If opened with write access, this must be the
+	 *		only process using the environment. This flag is automatically reset
+	 *		after a write transaction is successfully committed.
 	 * </ul>
 	 * @param[in] mode The UNIX permissions to set on created files and semaphores.
 	 * This parameter is ignored on Windows.

external/db_drivers/liblmdb/mdb.c

@@ -809,6 +809,16 @@ typedef struct MDB_txbody {
 	uint32_t	mtb_magic;
 		/** Format of this lock file. Must be set to #MDB_LOCK_FORMAT. */
 	uint32_t	mtb_format;
+		/**	The ID of the last transaction committed to the database.
+		 *	This is recorded here only for convenience; the value can always
+		 *	be determined by reading the main database meta pages.
+		 */
+	volatile txnid_t		mtb_txnid;
+		/** The number of slots that have been used in the reader table.
+		 *	This always records the maximum count, it is not decremented
+		 *	when readers release their slots.
+		 */
+	volatile unsigned	mtb_numreaders;
 #if defined(_WIN32) || defined(MDB_USE_POSIX_SEM)
 	char	mtb_rmname[MNAME_LEN];
 #elif defined(MDB_USE_SYSV_SEM)
@@ -820,16 +830,6 @@ typedef struct MDB_txbody {
 		 */
 	mdb_mutex_t	mtb_rmutex;
 #endif
-		/**	The ID of the last transaction committed to the database.
-		 *	This is recorded here only for convenience; the value can always
-		 *	be determined by reading the main database meta pages.
-		 */
-	volatile txnid_t		mtb_txnid;
-		/** The number of slots that have been used in the reader table.
-		 *	This always records the maximum count, it is not decremented
-		 *	when readers release their slots.
-		 */
-	volatile unsigned	mtb_numreaders;
 } MDB_txbody;
 
 	/** The actual reader table definition. */
@@ -1468,7 +1468,7 @@ static int	mdb_page_merge(MDB_cursor *csrc, MDB_cursor *cdst);
 static int	mdb_page_split(MDB_cursor *mc, MDB_val *newkey, MDB_val *newdata,
 				pgno_t newpgno, unsigned int nflags);
 
-static int  mdb_env_read_header(MDB_env *env, MDB_meta *meta);
+static int  mdb_env_read_header(MDB_env *env, int prev, MDB_meta *meta);
 static MDB_meta *mdb_env_pick_meta(const MDB_env *env);
 static int  mdb_env_write_meta(MDB_txn *txn);
 #ifdef MDB_USE_POSIX_MUTEX /* Drop unused excl arg */
@@ -1953,13 +1953,15 @@ static void
 mdb_cursor_unref(MDB_cursor *mc)
 {
 	int i;
-	if (!mc->mc_snum || !mc->mc_pg[0] || IS_SUBP(mc->mc_pg[0]))
-		return;
-	for (i=0; i<mc->mc_snum; i++)
-		mdb_page_unref(mc->mc_txn, mc->mc_pg[i]);
-	if (mc->mc_ovpg) {
-		mdb_page_unref(mc->mc_txn, mc->mc_ovpg);
-		mc->mc_ovpg = 0;
+	if (mc->mc_txn->mt_rpages[0].mid) {
+		if (!mc->mc_snum || !mc->mc_pg[0] || IS_SUBP(mc->mc_pg[0]))
+			return;
+		for (i=0; i<mc->mc_snum; i++)
+			mdb_page_unref(mc->mc_txn, mc->mc_pg[i]);
+		if (mc->mc_ovpg) {
+			mdb_page_unref(mc->mc_txn, mc->mc_ovpg);
+			mc->mc_ovpg = 0;
+		}
 	}
 	mc->mc_snum = mc->mc_top = 0;
 	mc->mc_pg[0] = NULL;
@@ -3630,6 +3632,8 @@ mdb_page_flush(MDB_txn *txn, int keep)
 	return MDB_SUCCESS;
 }
 
+static int ESECT mdb_env_share_locks(MDB_env *env, int *excl);
+
 int
 mdb_txn_commit(MDB_txn *txn)
 {
@@ -3852,6 +3856,15 @@ mdb_txn_commit(MDB_txn *txn)
 	if ((rc = mdb_env_write_meta(txn)))
 		goto fail;
 	end_mode = MDB_END_COMMITTED|MDB_END_UPDATE;
+	if (env->me_flags & MDB_PREVSNAPSHOT) {
+		if (!(env->me_flags & MDB_NOLOCK)) {
+			int excl;
+			rc = mdb_env_share_locks(env, &excl);
+			if (rc)
+				goto fail;
+		}
+		env->me_flags ^= MDB_PREVSNAPSHOT;
+	}
 
 done:
 	mdb_txn_end(txn, end_mode);
@@ -3865,11 +3878,12 @@ mdb_txn_commit(MDB_txn *txn)
 /** Read the environment parameters of a DB environment before
  * mapping it into memory.
  * @param[in] env the environment handle
+ * @param[in] prev whether to read the backup meta page
  * @param[out] meta address of where to store the meta information
  * @return 0 on success, non-zero on failure.
  */
 static int ESECT
-mdb_env_read_header(MDB_env *env, MDB_meta *meta)
+mdb_env_read_header(MDB_env *env, int prev, MDB_meta *meta)
 {
 	MDB_metabuf	pbuf;
 	MDB_page	*p;
@@ -3920,7 +3934,7 @@ mdb_env_read_header(MDB_env *env, MDB_meta *meta)
 			return MDB_VERSION_MISMATCH;
 		}
 
-		if (off == 0 || m->mm_txnid > meta->mm_txnid)
+		if (off == 0 || (prev ? m->mm_txnid < meta->mm_txnid : m->mm_txnid > meta->mm_txnid))
 			*meta = *m;
 	}
 	return 0;
@@ -4129,7 +4143,8 @@ static MDB_meta *
 mdb_env_pick_meta(const MDB_env *env)
 {
 	MDB_meta *const *metas = env->me_metas;
-	return metas[ metas[0]->mm_txnid < metas[1]->mm_txnid ];
+	return metas[ (metas[0]->mm_txnid < metas[1]->mm_txnid) ^
+		((env->me_flags & MDB_PREVSNAPSHOT) != 0) ];
 }
 
 int ESECT
@@ -4364,7 +4379,7 @@ mdb_fsize(HANDLE fd, mdb_size_t *size)
 /** Further setup required for opening an LMDB environment
  */
 static int ESECT
-mdb_env_open2(MDB_env *env)
+mdb_env_open2(MDB_env *env, int prev)
 {
 	unsigned int flags = env->me_flags;
 	int i, newenv = 0, rc;
@@ -4427,7 +4442,7 @@ mdb_env_open2(MDB_env *env)
 	}
 #endif
 
-	if ((i = mdb_env_read_header(env, &meta)) != 0) {
+	if ((i = mdb_env_read_header(env, prev, &meta)) != 0) {
 		if (i != ENOENT)
 			return i;
 		DPUTS("new mdbenv");
@@ -4503,6 +4518,9 @@ mdb_env_open2(MDB_env *env)
 #endif
 	env->me_maxpg = env->me_mapsize / env->me_psize;
 
+	if (env->me_txns)
+		env->me_txns->mti_txnid = meta.mm_txnid;
+
 #if MDB_DEBUG
 	{
 		MDB_meta *meta = mdb_env_pick_meta(env);
@@ -4598,9 +4616,6 @@ static int ESECT
 mdb_env_share_locks(MDB_env *env, int *excl)
 {
 	int rc = 0;
-	MDB_meta *meta = mdb_env_pick_meta(env);
-
-	env->me_txns->mti_txnid = meta->mm_txnid;
 
 #ifdef _WIN32
 	{
@@ -5054,7 +5069,7 @@ mdb_env_setup_locks(MDB_env *env, char *lpath, int mode, int *excl)
 	 */
 #define	CHANGEABLE	(MDB_NOSYNC|MDB_NOMETASYNC|MDB_MAPASYNC|MDB_NOMEMINIT)
 #define	CHANGELESS	(MDB_FIXEDMAP|MDB_NOSUBDIR|MDB_RDONLY| \
-	MDB_WRITEMAP|MDB_NOTLS|MDB_NOLOCK|MDB_NORDAHEAD)
+	MDB_WRITEMAP|MDB_NOTLS|MDB_NOLOCK|MDB_NORDAHEAD|MDB_PREVSNAPSHOT)
 
 #if VALID_FLAGS & PERSISTENT_FLAGS & (CHANGEABLE|CHANGELESS)
 # error "Persistent DB flags & env flags overlap, but both go in mm_flags"
@@ -5176,9 +5191,13 @@ mdb_env_open(MDB_env *env, const char *path, unsigned int flags, mdb_mode_t mode
 		rc = mdb_env_setup_locks(env, lpath, mode, &excl);
 		if (rc)
 			goto leave;
+		if ((flags & MDB_PREVSNAPSHOT) && !excl) {
+			rc = EAGAIN;
+			goto leave;
+		}
 	}
 
-	if ((rc = mdb_env_open2(env)) == MDB_SUCCESS) {
+	if ((rc = mdb_env_open2(env, flags & MDB_PREVSNAPSHOT)) == MDB_SUCCESS) {
 		if (flags & (MDB_RDONLY|MDB_WRITEMAP)) {
 			env->me_mfd = env->me_fd;
 		} else {
@@ -5204,7 +5223,7 @@ mdb_env_open(MDB_env *env, const char *path, unsigned int flags, mdb_mode_t mode
 			}
 		}
 		DPRINTF(("opened dbenv %p", (void *) env));
-		if (excl > 0) {
+		if (excl > 0 && !(flags & MDB_PREVSNAPSHOT)) {
 			rc = mdb_env_share_locks(env, &excl);
 			if (rc)
 				goto leave;
@@ -6269,6 +6288,10 @@ mdb_ovpage_free(MDB_cursor *mc, MDB_page *mp)
 		if (rc)
 			return rc;
 	}
+#ifdef MDB_VL32
+	if (mc->mc_ovpg == mp)
+		mc->mc_ovpg = NULL;
+#endif
 	mc->mc_db->md_overflow_pages -= ovpages;
 	return 0;
 }