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Add the sqlite3_os_routine_set()/get() functions. (CVS 2818)

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FossilOrigin-Name: c1ed79f594fb85009c2e9e5e281cbe66a9d2fa17
This commit is contained in:
danielk1977
2005-12-15 10:11:30 +00:00
parent af9a7c22b5
commit 13a68c3f61
14 changed files with 198 additions and 45 deletions
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43
src/util.c
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@@ -14,9 +14,10 @@
** This file contains functions for allocating memory, comparing
** strings, and stuff like that.
**
** $Id: util.c,v 1.152 2005/12/12 06:53:05 danielk1977 Exp $
** $Id: util.c,v 1.153 2005/12/15 10:11:32 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <stdarg.h>
#include <ctype.h>
@@ -107,6 +108,10 @@ int sqlite3OsAllocationSize(void *p){
** Begin code for memory allocation system test layer.
**
** Memory debugging is turned on by defining the SQLITE_MEMDEBUG macro.
**
** SQLITE_MEMDEBUG==1 -> Fence-posting only (thread safe)
** SQLITE_MEMDEBUG==2 -> Fence-posting + linked list of allocations (not ts)
** SQLITE_MEMDEBUG==3 -> Above + backtraces (not thread safe, req. glibc)
*/
/* Figure out whether or not to store backtrace() information for each malloc.
@@ -114,7 +119,7 @@ int sqlite3OsAllocationSize(void *p){
** greater and glibc is in use. If we don't want to use backtrace(), then just
** define it as an empty macro and set the amount of space reserved to 0.
*/
#if defined(__GLIBC__) && SQLITE_MEMDEBUG>1
#if defined(__GLIBC__) && SQLITE_MEMDEBUG>2
extern int backtrace(void **, int);
#define TESTALLOC_STACKSIZE 128
#define TESTALLOC_STACKFRAMES ((TESTALLOC_STACKSIZE-8)/sizeof(void*))
@@ -302,6 +307,8 @@ static void *getOsPointer(void *p)
return (void *)(&z[-1 * TESTALLOC_OFFSET_DATA(p)]);
}
#if SQLITE_MEMDEBUG>1
/*
** The argument points to an Os level allocation. Link it into the threads list
** of allocations.
@@ -363,6 +370,11 @@ static void relinkAlloc(void *p)
((void **)(pp[1]))[0] = p;
}
}
#else
#define linkAlloc(x)
#define relinkAlloc(x)
#define unlinkAlloc(x)
#endif
/*
** This function sets the result of the Tcl interpreter passed as an argument
@@ -1248,26 +1260,17 @@ void *sqlite3TextToPtr(const char *z){
/*
** Return a pointer to the SqliteTsd associated with the calling thread.
** TODO: Actually return thread-specific-data instead of this global pointer.
*/
SqliteTsd *sqlite3Tsd(){
static SqliteTsd tsd = {
0 /* mallocFailed flag */
#ifndef SQLITE_OMIT_SOFTHEAPLIMIT
, 0xFFFFFFFF /* nSoftHeapLimit */
, 0 /* nAlloc */
#endif
#ifndef NDEBUG
, 1 /* mallocAllowed flag */
#endif
#ifdef SQLITE_MEMDEBUG
, 0
, 0
, 0
, 0
#endif
};
return &tsd;
SqliteTsd *pTsd = sqlite3Os.xThreadSpecificData(sizeof(SqliteTsd));
if( pTsd && !pTsd->isInit ){
pTsd->nSoftHeapLimit = 0xFFFFFFFF;
#ifndef NDEBUG
pTsd->mallocAllowed = 1;
#endif
pTsd->isInit = 1;
}
return pTsd;
}
/*