Changeset: 80b8c3420d24 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=80b8c3420d24
Modified Files:
monetdb5/mal/mal_instruction.c
Branch: default
Log Message:
The upper layers of the code base assume that this routine will always produce
a structure.
Furthermore, failure to allocate such a small data structure indicates we are
in serious trouble.
The only way out is declare it a fatal error, terminate the system to avoid
crashes in all kind of places.
diffs (64 lines):
diff --git a/monetdb5/mal/mal_instruction.c b/monetdb5/mal/mal_instruction.c
--- a/monetdb5/mal/mal_instruction.c
+++ b/monetdb5/mal/mal_instruction.c
@@ -448,16 +448,16 @@ newInstructionArgs(MalBlkPtr mb, str mod
{
InstrPtr p = NULL;
+ (void) mb;
+
p = GDKzalloc(args * sizeof(p->argv[0]) + offsetof(InstrRecord, argv));
if (p == NULL) {
/* We are facing an hard problem.
- * The hack is to re-use an already allocated instruction.
- * The marking of the block as containing errors should protect
further actions.
+ * The upper layers of the code base assume that this routine
will always produce a structure.
+ * Furthermore, failure to allocate such a small data structure
indicates we are in serious trouble.
+ * The only way out is declare it a fatal error, terminate the
system to avoid crashes in all kind of places.
*/
- if( mb){
- mb->errors = createMalException(mb,0, TYPE,
SQLSTATE(HY013) MAL_MALLOC_FAIL);
- }
- return NULL;
+ GDKfatal("newInstruction:" SQLSTATE(HY013) MAL_MALLOC_FAIL);
}
p->maxarg = args;
p->typechk = TYPE_UNKNOWN;
@@ -470,35 +470,12 @@ newInstructionArgs(MalBlkPtr mb, str mod
* with modifier */
p->token = ASSIGNsymbol;
return p;
+}
-}
InstrPtr
newInstruction(MalBlkPtr mb, str modnme, str fcnnme)
{
- InstrPtr p = NULL;
-
- p = GDKzalloc(MAXARG * sizeof(p->argv[0]) + offsetof(InstrRecord,
argv));
- if (p == NULL) {
- /* We are facing an hard problem.
- * The hack is to re-use an already allocated instruction.
- * The marking of the block as containing errors should protect
further actions.
- */
- if( mb){
- mb->errors = createMalException(mb,0, TYPE,
SQLSTATE(HY013) MAL_MALLOC_FAIL);
- }
- return NULL;
- }
- p->maxarg = MAXARG;
- p->typechk = TYPE_UNKNOWN;
- setModuleId(p, modnme);
- setFunctionId(p, fcnnme);
- p->argc = 1;
- p->retc = 1;
- p->argv[0] = -1; /* watch out for direct use in
variable table */
- /* Flow of control instructions are always marked as an assignment
- * with modifier */
- p->token = ASSIGNsymbol;
- return p;
+ return newInstructionArgs(mb, modnme, fcnnme, MAXARG);
}
/* Copying an instruction is space conservative. */
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