--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/xml/cxmllibrary/src/utils/src/cxml_mem.c Tue Aug 31 17:02:56 2010 +0300
@@ -0,0 +1,296 @@
+/*
+* Copyright (c) 2003 - 2004 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+
+/***************************************************************************
+** File: cxml_mem.c
+** Purpose: Provides the implementation to memory management
+**************************************************************************/
+
+#include "cxml_internal.h"
+
+#ifdef FEATURE_MEMORY_PROFILE
+typedef struct _MemProfile
+{
+ struct _MemProfile *next; // ptr to next mem block
+ struct _MemProfile *prev; // ptr to previous mem block
+ char *file; // filename of memory allocator
+ CXML_Int32 line; // line # in filename of memory allocator
+ CXML_Int32 size; // size of requested memory
+ CXML_Int32 seq; // sequence number for allocation
+} MemProfile;
+#endif
+
+/*
+**-------------------------------------------------------------------------
+** External Public (Exported) Functions
+**-------------------------------------------------------------------------
+*/
+
+void *CXML_Mem_memset(void *s, CXML_Uint32 c, CXML_Uint32 n)
+{
+ unsigned char *myPtr = (unsigned char *)s;
+ unsigned char fill = (unsigned char)c;
+ while (n > 0) {
+ *myPtr = fill;
+ myPtr++;
+ n--;
+ }
+ return s;
+}
+
+
+void *CXML_Mem_memcpy(void *s1, const void *s2, CXML_Uint32 n)
+{
+ unsigned char *myDest = (unsigned char *)s1;
+ unsigned char *mySource = (unsigned char *)s2;
+
+ if (n==0) return NULL;
+
+ while (n > 0) {
+ *myDest = *mySource;
+ n--;
+ myDest++;
+ mySource++;
+ }
+ return s1;
+}
+
+
+void *CXML_Mem_memmove(void *s1, const void *s2, CXML_Uint32 n)
+{
+ unsigned char *myDest;
+ unsigned char *mySource;
+
+ if (n == 0) return NULL;
+
+ if (s1 <= s2) {
+ /* We can always copy from higher address to */
+ /* lower address, even if buffer overlaps */
+ myDest = (unsigned char *)s1;
+ mySource = (unsigned char *)s2;
+ while (n > 0) {
+ *myDest = *mySource;
+ myDest++;
+ mySource++;
+ n--;
+ }
+
+ } else {
+ /* We can always copy in reverse order from */
+ /* lower address to higher address, even if */
+ /* buffer overlaps */
+ myDest = (unsigned char *)s1 + n;
+ mySource = (unsigned char *)s2 + n;
+ while (n > 0) {
+ n--;
+ myDest--;
+ mySource--;
+ *myDest = *mySource;
+ }
+
+ }
+
+ return s1;
+}
+
+
+CXML_Int32 CXML_Mem_memcmp(const void *s1, const void *s2, CXML_Uint32 n)
+{
+ unsigned char *myDest = (unsigned char *)s1;
+ unsigned char *mySource = (unsigned char *)s2;
+
+ /* If s1 == s2, then immediately return 0. */
+ if ( s1 == s2 )
+ return 0 ;
+
+ while (n > 0) {
+ if (*myDest != *mySource) {
+ return (*myDest - *mySource);
+ }
+ myDest++;
+ mySource++;
+ n--;
+ }
+
+ return 0;
+}
+
+/*********************************************************
+** Name: CXML_Mem_Malloc
+** Description: Allocates memory.
+** Parameters: nbytes - number of bytes to allocate
+** Return Value: pointer to the allocated memory or NULL
+**********************************************************/
+void *CXML_Mem_Malloc(CXML_Uint32 nbytes)
+{
+ return malloc(nbytes);
+}
+
+/************************************************************************
+** Name: CXML_Mem_Free
+** Description: Frees allocated memory.
+** Parameters: mem - pointer to the memory to free
+** Return Value: void
+**************************************************************************/
+void CXML_Mem_Free(void *buffer)
+{
+ if (buffer != NULL) {
+ /* Note: os_block_dealloc() will free both heap and block-table memory */
+ free(buffer);
+ }
+ return;
+}
+
+
+#ifdef FEATURE_MEMORY_PROFILE
+CXML_Uint32 Asc_strlen(const char *s)
+{
+ CXML_Uint32 i = 0;
+ while (*s != '\0')
+ {
+ s++;
+ i++;
+ }
+ return i;
+}
+
+/*****************************************************************
+** Name: Asc_strcpy
+** Description: Copies ascii string
+** Parameters: s1 destination string
+** s2 source string
+** Return Value: pointer to s1
+******************************************************************/
+char *Asc_strcpy(char *s1, const char *s2)
+{
+ while (*s2 != '\0') {
+ *s1 = *s2;
+ s1++;
+ s2++;
+ }
+ *s1 = *s2;
+ return s1;
+}
+
+/*********************************************************
+** Name: CXML_Mem_Malloc
+** Description: Allocates memory.
+** Parameters: nbytes - number of bytes to allocate
+** Return Value: pointer to the allocated memory or NULL
+**********************************************************/
+void *CXML_Mem_Malloc_Pro(CXML_Uint32 nbytes, char *file, CXML_Uint32 line)
+{
+ void *buf;
+ MemProfile *pblock, *last;
+ CXML_Int32 len = nbytes + sizeof(MemProfile);
+ CXML_Int32 seqno;
+
+ pblock = malloc(len);
+
+ // Store profile block data
+
+ if ((CXML_Uint32) file > 0xf000)
+ {
+ pblock->file = (char*)malloc(Asc_strlen(file) + 1);
+ Asc_strcpy(pblock->file, file);
+ }
+ else
+ {
+ // no filename since this may be called via a function ptr
+ pblock->file = NULL;
+ }
+ pblock->line = line;
+ pblock->size = nbytes;
+
+ // Set List Pointers
+ // Get last ptr
+ last = (MemProfile *) NW_Ctx_Get(NW_CTX_MEM_PRO_LAST_PTR, 0);
+
+ if (last == NULL)
+ {
+ pblock->prev = NULL;
+ pblock->seq = 0;
+ }
+ else
+ {
+ pblock->prev = last;
+ last->next = pblock;
+ // can't use last-> because free my remove block (along with
+ // seq numbers, need a context
+ seqno = (CXML_Uint32) NW_Ctx_Get(NW_CTX_MEM_PRO_SEQ_NO, 0);
+ seqno += 1;
+ pblock->seq = seqno;
+ NW_Ctx_Set(NW_CTX_MEM_PRO_SEQ_NO, 0, seqno);
+ }
+ pblock->next = NULL;
+
+ // last = pblock
+ last = pblock;
+ NW_Ctx_Set(NW_CTX_MEM_PRO_LAST_PTR, 0, last);
+
+
+ // return mem block to caller
+ buf = (void *) ((CXML_Byte *) pblock + sizeof(MemProfile));
+ return (buf);
+}
+
+/************************************************************************
+** Name: CXML_Mem_Free
+** Description: Frees allocated memory.
+** Parameters: mem - pointer to the memory to free
+** Return Value: void
+**************************************************************************/
+void CXML_Mem_Free_Pro(void *buffer, char *file, CXML_Uint32 line)
+{
+ MemProfile *pblock, *last, *prevp, *nextp;
+
+ if (buffer == NULL)
+ {
+ return;
+ }
+
+ pblock = (MemProfile *) ((CXML_Byte *) buffer - sizeof(MemProfile));
+
+ // Get last ptr
+ last = (MemProfile *) NW_Ctx_Get(NW_CTX_MEM_PRO_LAST_PTR, 0);
+
+ if ( pblock == last )
+ {
+ last = last->prev;
+ NW_Ctx_Set(NW_CTX_MEM_PRO_LAST_PTR, 0, last);
+ }
+ else
+ {
+ prevp = pblock->prev;
+ nextp = pblock->next;
+ if (prevp)
+ {
+ prevp->next = nextp;
+ }
+ if (nextp)
+ {
+ nextp->prev = prevp;
+ }
+ }
+
+ // Free Filename pointer and memory block
+ free(pblock->file);
+ free(pblock);
+ return;
+}
+#endif