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authorMike Gabriel <mike.gabriel@das-netzwerkteam.de>2016-06-27 12:12:31 +0200
committerMike Gabriel <mike.gabriel@das-netzwerkteam.de>2016-07-02 14:05:31 +0200
commitf779b2e3c4eba5c15d20cc13ebd08276a66ac012 (patch)
tree2f5eb42ec0768a9f738d057ce6fbf3a89194ef10 /nx-X11/programs/Xserver/os
parentce40aec08aef6aebd1d25728a1d0dc4b2bc8db09 (diff)
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os: Remove deprecated malloc/free wrappers, clean {X,XNF}{alloc,calloc,realloc,free,strdup} from pre-C89 baggage
Backported from X.org: commit cad9b053d52f62432dfd70e42e0240de77027cae Author: Adam Jackson <ajax@redhat.com> Date: Tue Jul 8 13:24:25 2014 -0400 os: Remove deprecated malloc/free wrappers Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Adam Jackson <ajax@redhat.com> commit e983848ab44b0769f97f6207f1aa8b4f127be6a9 Author: Mikhail Gusarov <dottedmag@dottedmag.net> Date: Thu May 6 00:16:24 2010 +0700 Clean {X,XNF}{alloc,calloc,realloc,free,strdup} from pre-C89 baggage C89 guarantees alignment of pointers returned from malloc/calloc/realloc, so stop fiddling with alignment manually and just pass the arguments to library functions. Also convert silent error when negative size is passed into function into warning in log file. Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net> Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net> Backport to nx-libs: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
Diffstat (limited to 'nx-X11/programs/Xserver/os')
-rw-r--r--nx-X11/programs/Xserver/os/utils.c149
1 files changed, 17 insertions, 132 deletions
diff --git a/nx-X11/programs/Xserver/os/utils.c b/nx-X11/programs/Xserver/os/utils.c
index 63dd920b3..f5f09c320 100644
--- a/nx-X11/programs/Xserver/os/utils.c
+++ b/nx-X11/programs/Xserver/os/utils.c
@@ -1336,80 +1336,20 @@ set_font_authorizations(char **authorizations, int *authlen, void * client)
#endif /* TCPCONN */
}
-/* XALLOC -- X's internal memory allocator. Why does it return unsigned
- * long * instead of the more common char *? Well, if you read K&R you'll
- * see they say that alloc must return a pointer "suitable for conversion"
- * to whatever type you really want. In a full-blown generic allocator
- * there's no way to solve the alignment problems without potentially
- * wasting lots of space. But we have a more limited problem. We know
- * we're only ever returning pointers to structures which will have to
- * be long word aligned. So we are making a stronger guarantee. It might
- * have made sense to make Xalloc return char * to conform with people's
- * expectations of malloc, but this makes lint happier.
- */
-
-#ifndef INTERNAL_MALLOC
-
-void *
-Xalloc(unsigned long amount)
-{
- register void * ptr;
-
- if ((long)amount <= 0) {
- return (unsigned long *)NULL;
- }
- /* aligned extra on long word boundary */
- amount = (amount + (sizeof(long) - 1)) & ~(sizeof(long) - 1);
-#ifdef MEMBUG
- if (!Must_have_memory && Memory_fail &&
- ((random() % MEM_FAIL_SCALE) < Memory_fail))
- return (unsigned long *)NULL;
-#endif
- if ((ptr = (void *)malloc(amount))) {
- return (unsigned long *)ptr;
- }
- if (Must_have_memory)
- FatalError("Out of memory");
- return (unsigned long *)NULL;
-}
-
/*****************
* XNFalloc
- * "no failure" realloc, alternate interface to Xalloc w/o Must_have_memory
+ * "no failure" alloc
*****************/
void *
XNFalloc(unsigned long amount)
{
- register void * ptr;
-
- if ((long)amount <= 0)
- {
- return (unsigned long *)NULL;
- }
- /* aligned extra on long word boundary */
- amount = (amount + (sizeof(long) - 1)) & ~(sizeof(long) - 1);
- ptr = (void *)malloc(amount);
+ void *ptr = malloc(amount);
if (!ptr)
{
FatalError("Out of memory");
}
- return ((unsigned long *)ptr);
-}
-
-/*****************
- * Xcalloc
- *****************/
-
-void *
-Xcalloc(unsigned long amount)
-{
- unsigned long *ret;
-
- ret = Xalloc (amount);
- if (ret)
- bzero ((char *) ret, (int) amount);
- return ret;
+ return ptr;
}
/*****************
@@ -1419,72 +1359,24 @@ Xcalloc(unsigned long amount)
void *
XNFcalloc(unsigned long amount)
{
- unsigned long *ret;
-
- ret = Xalloc (amount);
- if (ret)
- bzero ((char *) ret, (int) amount);
- else if ((long)amount > 0)
- FatalError("Out of memory");
+ void *ret = calloc(1, amount);
+ if (!ret)
+ FatalError("XNFcalloc: Out of memory");
return ret;
}
/*****************
- * Xrealloc
- *****************/
-
-void *
-Xrealloc(void * ptr, unsigned long amount)
-{
-#ifdef MEMBUG
- if (!Must_have_memory && Memory_fail &&
- ((random() % MEM_FAIL_SCALE) < Memory_fail))
- return (unsigned long *)NULL;
-#endif
- if ((long)amount <= 0)
- {
- if (ptr && !amount)
- free(ptr);
- return (unsigned long *)NULL;
- }
- amount = (amount + (sizeof(long) - 1)) & ~(sizeof(long) - 1);
- if (ptr)
- ptr = (void *)realloc((char *)ptr, amount);
- else
- ptr = (void *)malloc(amount);
- if (ptr)
- return (unsigned long *)ptr;
- if (Must_have_memory)
- FatalError("Out of memory");
- return (unsigned long *)NULL;
-}
-
-/*****************
* XNFrealloc
- * "no failure" realloc, alternate interface to Xrealloc w/o Must_have_memory
+ * "no failure" realloc
*****************/
void *
XNFrealloc(void * ptr, unsigned long amount)
{
- if (( ptr = (void *)Xrealloc( ptr, amount ) ) == NULL)
- {
- if ((long)amount > 0)
- FatalError( "Out of memory" );
- }
- return ((unsigned long *)ptr);
-}
-
-/*****************
- * Xfree
- * calls free
- *****************/
-
-void
-Xfree(void * ptr)
-{
- if (ptr)
- free((char *)ptr);
+ void *ret = realloc(ptr, amount);
+ if (!ret)
+ FatalError("XNFrealloc: Out of memory");
+ return ret;
}
void
@@ -1500,35 +1392,28 @@ OsInitAllocator (void)
been_here = 1;
#endif
}
-#endif /* !INTERNAL_MALLOC */
-
char *
Xstrdup(const char *s)
{
- char *sd;
-
if (s == NULL)
return NULL;
-
- sd = (char *)malloc(strlen(s) + 1);
- if (sd != NULL)
- strcpy(sd, s);
- return sd;
+ return strdup(s);
}
char *
XNFstrdup(const char *s)
{
- char *sd;
+ char *ret;
if (s == NULL)
return NULL;
- sd = (char *)XNFalloc(strlen(s) + 1);
- strcpy(sd, s);
- return sd;
+ ret = strdup(s);
+ if (!ret)
+ FatalError("XNFstrdup: Out of memory");
+ return ret;
}
#ifdef SMART_SCHEDULE