Move malloc(), free(), realloc() and allocationSize() into the Os vtbl. (CVS 2819)

FossilOrigin-Name: 81a41f66370ea7f6810dfb323ba5cea60f240edd

manifest

@@ -1,5 +1,5 @@
-C Add\sthe\ssqlite3_os_routine_set()/get()\sfunctions.\s(CVS\s2818)
+C Move\smalloc(),\sfree(),\srealloc()\sand\sallocationSize()\sinto\sthe\sOs\svtbl.\s(CVS\s2819)
-D 2005-12-15T10:11:31
+D 2005-12-15T10:50:54
 F Makefile.in e3c6b3a38d734d41574c04f2fc90d18de2b87102
 F Makefile.linux-gcc aee18d8a05546dcf1888bd4547e442008a49a092
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -51,13 +51,13 @@ F src/legacy.c 59757d857ab95fcbb0ac27692d3201e35f093dd7
 F src/main.c a12aa72335036bb22249418e222124abfc581b85
 F src/md5.c c5fdfa5c2593eaee2e32a5ce6c6927c986eaf217
 F src/os.c 7b4a002d9c9421580276db55d2329636a604e8ef
-F src/os.h df6babd4fd74bb659470c31fa5a27de31b1c474e
+F src/os.h e941992043b127fdb1bd114f0b4319ae1c4562a7
-F src/os_common.h d74a11728ad2444b6b695b94c28c06881f049e49
+F src/os_common.h a4ad0448f112bb124e5df9eb41c377e770aee7b2
 F src/os_test.c 49833426101f99aee4bb5f6a44b7c4b2029fda1c
 F src/os_test.h 903c93554c23d88f34f667f1979e4a1cee792af3
-F src/os_unix.c df6e4972099aa5263183009fb947083633236dd3
+F src/os_unix.c 6394d2fa3a8bfbceb227579b44b4b343b5b54a8f
 F src/os_unix.h 5768d56d28240d3fe4537fac08cc85e4fb52279e
-F src/os_win.c 2da77ddc03de8c51688cca648ced766b5dad8a6a
+F src/os_win.c 9feb97f49b93d451f8ef7c5dd388e05a44647dc6
 F src/os_win.h 41a946bea10f61c158ce8645e7646b29d44f122b
 F src/pager.c 49f63a54b57164a70df0b1539141003fd27856c6
 F src/pager.h e7b41ce8e7b5f629d456708b7ad9a8c8ede37140
@@ -82,7 +82,7 @@ F src/tokenize.c 7a3a3d3cc734f684a77c4dfd09eb46fcee25394c
 F src/trigger.c 2925ba96d964d9b717e74006bf7e64b8a6b70d97
 F src/update.c ec8e540617b116725b5a55c8d6b4db8bc67fdd7d
 F src/utf.c d2360f55ecd666f3e472738191f8dae717b95e5e
-F src/util.c 06ab728430ae55191076cdf4075be36f621a7183
+F src/util.c 8bb5e0553692d36c769d6cd033eb7f68a7586648
 F src/vacuum.c fbfdd3967fd34e2f260fafed88dcbf3c10856b94
 F src/vdbe.c d09c185f4badac6c79f2a919cbf661e7b5618293
 F src/vdbe.h 8729a4ee16ff9aeab2af9667df3cf300ff978e13
@@ -327,7 +327,7 @@ F www/tclsqlite.tcl ddcf912ea48695603c8ed7efb29f0812ef8d1b49
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P ad292e27336b8c5afc0acdf111944a456bd23c32
+P c1ed79f594fb85009c2e9e5e281cbe66a9d2fa17
-R 079783b8421fc6a8eada9a4aa8fe00c7
+R e31df3de6303938f8025bb0d1c87c829
 U danielk1977
-Z 21e315959d3bb7c348f1a6f926708fc0
+Z d08eb08fd8a87ac6ccdc5f99bd5ce249

manifest.uuid

@@ -1 +1 @@
-c1ed79f594fb85009c2e9e5e281cbe66a9d2fa17
+81a41f66370ea7f6810dfb323ba5cea60f240edd

src/os.h

@@ -220,9 +220,15 @@ extern struct sqlite3OsVtbl {
   int  (*xRandomSeed)(char*);
   int  (*xSleep)(int ms);
   int  (*xCurrentTime)(double*);
+
   void (*xEnterMutex)(void);
   void (*xLeaveMutex)(void);
   void *(*xThreadSpecificData)(int);
+
+  void *(*xMalloc)(int);
+  void *(*xRealloc)(void *, int);
+  void (*xFree)(void *);
+  int (*xAllocationSize)(void *);
 } sqlite3Os;
 
 

src/os_common.h

@@ -122,3 +122,40 @@ int sqlite3_open_file_count = 0;
 #else
 #define OpenCounter(X)
 #endif
+
+/*
+** genericMalloc
+** genericRealloc
+** genericOsFree
+** genericAllocationSize
+**
+** Implementation of the os level dynamic memory allocation interface in terms
+** of the standard malloc(), realloc() and free() found in many operating
+** systems. No rocket science here.
+*/
+static void *genericMalloc(int n){
+  char *p = (char *)malloc(n+8);
+  assert(n>0);
+  assert(sizeof(int)<=8);
+  if( p ){
+    *(int *)p = n;
+  }
+  return (void *)(p + 8);
+}
+static void *genericRealloc(void *p, int n){
+  char *p2 = ((char *)p - 8);
+  assert(n>0);
+  p2 = realloc(p2, n+8);
+  if( p2 ){
+    *(int *)p2 = n;
+  }
+  return (void *)((char *)p2 + 8);
+}
+static void genericFree(void *p){
+  assert(p);
+  free((void *)((char *)p - 8));
+}
+static int genericAllocationSize(void *p){
+  return *(int *)((char *)p - 8);
+}
+

src/os_unix.c

@@ -1594,9 +1594,11 @@ static void unixLeaveMutex(){
 ** such as sqliteMalloc() we use OsFree() and OsMalloc() directly to
 ** allocate the thread specific data.
 */
+#ifdef SQLITE_UNIX_THREADS
 static void deleteTsd(void *pTsd){
-  sqlite3OsFree(pTsd);
+  sqlite3Os.xFree(pTsd);
 }
+#endif
 
 /* 
 ** The first time this function is called from a specific thread, nByte 
@@ -1627,7 +1629,7 @@ static void *unixThreadSpecificData(int nByte){
 
   pTsd = (SqliteTsd *)pthread_getspecific(key);
   if( !pTsd ){
-    pTsd = sqlite3OsMalloc(sizeof(SqliteTsd));
+    pTsd = sqlite3Os.xMalloc(sizeof(SqliteTsd));
     if( pTsd ){
       memset(pTsd, 0, sizeof(SqliteTsd));
       pthread_setspecific(key, pTsd);
@@ -1636,7 +1638,7 @@ static void *unixThreadSpecificData(int nByte){
   return pTsd;
 #else
   static char tsd[sizeof(SqliteTsd)];
-  static isInit = 0;
+  static int isInit = 0;
   assert( nByte==sizeof(SqliteTsd) );
   if( !isInit ){
     memset(tsd, 0, sizeof(SqliteTsd));
@@ -1704,7 +1706,11 @@ struct sqlite3OsVtbl sqlite3Os = {
   unixCurrentTime,
   unixEnterMutex,
   unixLeaveMutex,
-  unixThreadSpecificData
+  unixThreadSpecificData,
+  genericMalloc,
+  genericRealloc,
+  genericFree,
+  genericAllocationSize
 };
 
 

src/os_win.c

@@ -1062,7 +1062,11 @@ struct sqlite3OsVtbl sqlite3Os = {
   winCurrentTime,
   winEnterMutex,
   winLeaveMutex,
-  winThreadSpecificData
+  winThreadSpecificData,
+  genericMalloc,
+  genericRealloc,
+  genericFree,
+  genericAllocationSize
 };
 
 #endif /* OS_WIN */

src/util.c

@@ -14,7 +14,7 @@
 ** This file contains functions for allocating memory, comparing
 ** strings, and stuff like that.
 **
-** $Id: util.c,v 1.153 2005/12/15 10:11:32 danielk1977 Exp $
+** $Id: util.c,v 1.154 2005/12/15 10:50:54 danielk1977 Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -40,14 +40,14 @@
 ** level (not in this file). The Os level interface is never accessed directly
 ** by code outside of this file.
 **
-**     sqlite3OsMalloc()
+**     sqlite3Os.xMalloc()
-**     sqlite3OsRealloc()
+**     sqlite3Os.xRealloc()
-**     sqlite3OsFree()
+**     sqlite3Os.xFree()
-**     sqlite3OsAllocationSize()
+**     sqlite3Os.xAllocationSize()
 **
 ** Functions sqlite3MallocRaw() and sqlite3Realloc() may invoke 
-** sqlite3_release_memory() if a call to sqlite3OsMalloc() or
+** sqlite3_release_memory() if a call to sqlite3Os.xMalloc() or
-** sqlite3OsRealloc() fails. Function sqlite3Malloc() usually invokes
+** sqlite3Os.xRealloc() fails. Function sqlite3Malloc() usually invokes
 ** sqlite3MallocRaw().
 **
 ** MALLOC TEST WRAPPER ARCHITECTURE
@@ -62,42 +62,6 @@
 **     * Audit outstanding memory allocations (i.e check for leaks).
 */
 
-/*
-** sqlite3OsMalloc
-** sqlite3OsRealloc
-** sqlite3OsOsFree
-** sqlite3OsAllocationSize
-**
-** Implementation of the os level dynamic memory allocation interface in terms
-** of the standard malloc(), realloc() and free() found in many operating
-** systems. No rocket science here.
-*/
-void *sqlite3OsMalloc(int n){
-  char *p = (char *)malloc(n+8);
-  assert(n>0);
-  assert(sizeof(int)<=8);
-  if( p ){
-    *(int *)p = n;
-  }
-  return (void *)(p + 8);
-}
-void *sqlite3OsRealloc(void *p, int n){
-  char *p2 = ((char *)p - 8);
-  assert(n>0);
-  p2 = realloc(p2, n+8);
-  if( p2 ){
-    *(int *)p2 = n;
-  }
-  return (void *)((char *)p2 + 8);
-}
-void sqlite3OsFree(void *p){
-  assert(p);
-  free((void *)((char *)p - 8));
-}
-int sqlite3OsAllocationSize(void *p){
-  return *(int *)((char *)p - 8);
-}
-
 /*
 ** TODO!
 */
@@ -167,7 +131,7 @@ const char *sqlite3_malloc_id = 0;
   TESTALLOC_OFFSET_GUARD1(p) + sizeof(u32) * TESTALLOC_NGUARD \
 )
 #define TESTALLOC_OFFSET_GUARD2(p) ( \
-  TESTALLOC_OFFSET_DATA(p) + sqlite3OsAllocationSize(p) - TESTALLOC_OVERHEAD \
+  TESTALLOC_OFFSET_DATA(p) + sqlite3Os.xAllocationSize(p) - TESTALLOC_OVERHEAD \
 )
 #define TESTALLOC_OFFSET_LINENUMBER(p) ( \
   TESTALLOC_OFFSET_GUARD2(p) + sizeof(u32) * TESTALLOC_NGUARD \
@@ -226,7 +190,7 @@ static int failMalloc(){
 }
 
 /*
-** The argument is a pointer returned by sqlite3OsMalloc() or Realloc().
+** The argument is a pointer returned by sqlite3Os.xMalloc() or xRealloc().
 ** assert() that the first and last (TESTALLOC_NGUARD*4) bytes are set to the
 ** values set by the applyGuards() function.
 */
@@ -252,7 +216,7 @@ static void checkGuards(u32 *p)
 }
 
 /*
-** The argument is a pointer returned by sqlite3OsMalloc() or Realloc(). The
+** The argument is a pointer returned by sqlite3Os.xMalloc() or Realloc(). The
 ** first and last (TESTALLOC_NGUARD*4) bytes are set to known values for use as 
 ** guard-posts.
 */
@@ -404,7 +368,7 @@ int sqlite3OutstandingMallocs(Tcl_Interp *interp){
     Tcl_Obj *pStack = Tcl_NewObj();
     char *z;
     u32 iLine;
-    int nBytes = sqlite3OsAllocationSize(p) - TESTALLOC_OVERHEAD;
+    int nBytes = sqlite3Os.xAllocationSize(p) - TESTALLOC_OVERHEAD;
     char *zAlloc = (char *)p;
     int i;
 
@@ -439,12 +403,12 @@ int sqlite3OutstandingMallocs(Tcl_Interp *interp){
 #endif
 
 /*
-** This is the test layer's wrapper around sqlite3OsMalloc().
+** This is the test layer's wrapper around sqlite3Os.xMalloc().
 */
 static void * OSMALLOC(int n){
   if( !failMalloc() ){
     u32 *p;
-    p = (u32 *)sqlite3OsMalloc(n + TESTALLOC_OVERHEAD);
+    p = (u32 *)sqlite3Os.xMalloc(n + TESTALLOC_OVERHEAD);
     assert(p);
     sqlite3_nMalloc++;
     applyGuards(p);
@@ -455,25 +419,25 @@ static void * OSMALLOC(int n){
 }
 
 /*
-** This is the test layer's wrapper around sqlite3OsFree(). The argument is a
+** This is the test layer's wrapper around sqlite3Os.xFree(). The argument is a
 ** pointer to the space allocated for the application to use.
 */
 void OSFREE(void *pFree){
   u32 *p = (u32 *)getOsPointer(pFree);   /* p points to Os level allocation */
   checkGuards(p);
   unlinkAlloc(p);
-  sqlite3OsFree(p);
+  sqlite3Os.xFree(p);
   sqlite3_nFree++;
 }
 
 /*
-** This is the test layer's wrapper around sqlite3OsRealloc().
+** This is the test layer's wrapper around sqlite3Os.xRealloc().
 */
 void * OSREALLOC(void *pRealloc, int n){
   if( !failMalloc() ){
     u32 *p = (u32 *)getOsPointer(pRealloc);
     checkGuards(p);
-    p = sqlite3OsRealloc(p, n + TESTALLOC_OVERHEAD);
+    p = sqlite3Os.xRealloc(p, n + TESTALLOC_OVERHEAD);
     applyGuards(p);
     relinkAlloc(p);
     return (void *)(&p[TESTALLOC_NGUARD + 2*sizeof(void *)/sizeof(u32)]);
@@ -487,16 +451,16 @@ void OSMALLOC_FAILED(){
 
 int OSSIZEOF(void *p){
   if( p ){
-    return sqlite3OsAllocationSize(p) - TESTALLOC_OVERHEAD;
+    return sqlite3Os.xAllocationSize(p) - TESTALLOC_OVERHEAD;
   }
   return 0;
 }
 
 #else
-#define OSMALLOC(x) sqlite3OsMalloc(x)
+#define OSMALLOC(x) sqlite3Os.xMalloc(x)
-#define OSREALLOC(x,y) sqlite3OsRealloc(x,y)
+#define OSREALLOC(x,y) sqlite3Os.xRealloc(x,y)
-#define OSFREE(x) sqlite3OsFree(x)
+#define OSFREE(x) sqlite3Os.xFree(x)
-#define OSSIZEOF(x) sqlite3OsAllocationSize(x)
+#define OSSIZEOF(x) sqlite3Os.xAllocationSize(x)
 #define OSMALLOC_FAILED()
 #endif
 /*
@@ -505,7 +469,7 @@ int OSSIZEOF(void *p){
 
 /*
 ** The handleSoftLimit() function is called before each call to 
-** sqlite3OsMalloc() or sqlite3OsRealloc(). The parameter 'n' is the number of
+** sqlite3Os.xMalloc() or xRealloc(). The parameter 'n' is the number of
 ** extra bytes about to be allocated (for Realloc() this means the size of the
 ** new allocation less the size of the old allocation). If the extra allocation
 ** means that the total memory allocated to SQLite in this thread would exceed
@@ -527,7 +491,7 @@ static void handleSoftLimit(int n){
 
 /*
 ** Allocate and return N bytes of uninitialised memory by calling
-** sqlite3OsMalloc(). If the Malloc() call fails, attempt to free memory 
+** sqlite3Os.xMalloc(). If the Malloc() call fails, attempt to free memory 
 ** by calling sqlite3_release_memory().
 */
 void *sqlite3MallocRaw(int n){
@@ -545,7 +509,7 @@ void *sqlite3MallocRaw(int n){
 }
 
 /*
-** Resize the allocation at p to n bytes by calling sqlite3OsRealloc(). The
+** Resize the allocation at p to n bytes by calling sqlite3Os.xRealloc(). The
 ** pointer to the new allocation is returned.  If the Realloc() call fails,
 ** attempt to free memory by calling sqlite3_release_memory().
 */