Track total memory usage using a 64-bit integer on 64-bit systems. Add

the sqlite3_status64() interface.  Make the sqlite3_status() and
sqlite3_status64() interfaces atomic using mutexes and verify correct
mutex operation using assert() statements.

FossilOrigin-Name: 6fc4e79a2350295a15ac464593ad39d904953041

1 files changed, 21 insertions, 2 deletions

diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 9e174d6f4..2b1d7ebc6 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -595,6 +595,20 @@ typedef INT8_TYPE i8;              /* 1-byte signed integer */
 typedef INT16_TYPE LogEst;
 
 /*
+** Set the SQLITE_PTRSIZE macro to the number of bytes in a pointer
+*/
+#ifndef SQLITE_PTRSIZE
+# if defined(__SIZEOF_POINTER__)
+#   define SQLITE_PTRSIZE __SIZEOF_POINTER__
+# elif defined(i386)     || defined(__i386__)   || defined(_M_IX86) ||    \
+       defined(_M_ARM)   || defined(__arm__)    || defined(__x86)
+#   define SQLITE_PTRSIZE 4
+# else
+#   define SQLITE_PTRSIZE 8
+# endif
+#endif
+
+/*
 ** Macros to determine whether the machine is big or little endian,
 ** and whether or not that determination is run-time or compile-time.
 **
@@ -3097,10 +3111,15 @@ const sqlite3_mem_methods *sqlite3MemGetMemsys5(void);
   int sqlite3MutexEnd(void);
 #endif
 
-int sqlite3StatusValue(int);
-void sqlite3StatusAdd(int, int);
+sqlite3_int64 sqlite3StatusValue(int);
+void sqlite3StatusUp(int, int);
+void sqlite3StatusDown(int, int);
 void sqlite3StatusSet(int, int);
 
+/* Access to mutexes used by sqlite3_status() */
+sqlite3_mutex *sqlite3Pcache1Mutex(void);
+sqlite3_mutex *sqlite3MallocMutex(void);
+
 #ifndef SQLITE_OMIT_FLOATING_POINT
   int sqlite3IsNaN(double);
 #else