pod: handle NULL

This commit is contained in:
Wim Taymans 2017-03-23 16:08:50 +01:00
parent e28b5f91b8
commit 3dba9f0fd4
10 changed files with 121 additions and 111 deletions

View file

@ -24,6 +24,7 @@
extern "C" {
#endif
#include <stdio.h>
#include <stdarg.h>
#include <spa/pod.h>
@ -90,61 +91,78 @@ spa_pod_object_find_prop (const SpaPODObject *obj, uint32_t key)
return spa_pod_contents_find_prop (&obj->pod, sizeof (SpaPODObject), key);
}
#define SPA_POD_COLLECT(pod,type,args) \
switch (type) { \
case SPA_POD_TYPE_BOOL: \
case SPA_POD_TYPE_URI: \
case SPA_POD_TYPE_INT: \
*(va_arg (args, int32_t*)) = SPA_POD_VALUE(SpaPODInt, pod); \
break; \
case SPA_POD_TYPE_LONG: \
*(va_arg (args, int64_t*)) = SPA_POD_VALUE (SpaPODLong, pod); \
break; \
case SPA_POD_TYPE_FLOAT: \
*(va_arg (args, float*)) = SPA_POD_VALUE (SpaPODFloat, pod); \
break; \
case SPA_POD_TYPE_DOUBLE: \
*(va_arg (args, double*)) = SPA_POD_VALUE (SpaPODDouble, pod); \
break; \
case SPA_POD_TYPE_STRING: \
*(va_arg (args, char **)) = SPA_POD_CONTENTS (SpaPODString, pod); \
break; \
case -SPA_POD_TYPE_STRING: \
{ \
char *dest = va_arg (args, char *); \
uint32_t maxlen = va_arg (args, uint32_t); \
strncpy (dest, SPA_POD_CONTENTS (SpaPODString, pod), maxlen-1); \
break; \
#define SPA_POD_COLLECT(pod,type,args,error) \
do { \
if (type == SPA_POD_TYPE_POD) { \
*(va_arg (args, SpaPOD **)) = pod; \
} else if ((pod)->type == SPA_POD_TYPE_NONE) { \
switch (type) { \
case SPA_POD_TYPE_ARRAY: \
case SPA_POD_TYPE_STRUCT: \
case SPA_POD_TYPE_OBJECT: \
case SPA_POD_TYPE_PROP: \
*(va_arg (args, SpaPOD **)) = NULL; \
break; \
default: \
goto error; \
} \
case SPA_POD_TYPE_BYTES: \
*(va_arg (args, void **)) = SPA_POD_CONTENTS (SpaPODBytes, pod); \
*(va_arg (args, uint32_t *)) = SPA_POD_BODY_SIZE (pod); \
break; \
case SPA_POD_TYPE_POINTER: \
{ \
SpaPODPointerBody *b = SPA_POD_BODY (pod); \
*(va_arg (args, void **)) = b->value; \
break; \
} else if ((pod)->type == type) { \
switch (type) { \
case SPA_POD_TYPE_BOOL: \
case SPA_POD_TYPE_URI: \
case SPA_POD_TYPE_INT: \
*(va_arg (args, int32_t*)) = SPA_POD_VALUE(SpaPODInt, pod); \
break; \
case SPA_POD_TYPE_LONG: \
*(va_arg (args, int64_t*)) = SPA_POD_VALUE (SpaPODLong, pod); \
break; \
case SPA_POD_TYPE_FLOAT: \
*(va_arg (args, float*)) = SPA_POD_VALUE (SpaPODFloat, pod); \
break; \
case SPA_POD_TYPE_DOUBLE: \
*(va_arg (args, double*)) = SPA_POD_VALUE (SpaPODDouble, pod); \
break; \
case SPA_POD_TYPE_STRING: \
*(va_arg (args, char **)) = SPA_POD_CONTENTS (SpaPODString, pod); \
break; \
case -SPA_POD_TYPE_STRING: \
{ \
char *dest = va_arg (args, char *); \
uint32_t maxlen = va_arg (args, uint32_t); \
strncpy (dest, SPA_POD_CONTENTS (SpaPODString, pod), maxlen-1); \
break; \
} \
case SPA_POD_TYPE_BYTES: \
*(va_arg (args, void **)) = SPA_POD_CONTENTS (SpaPODBytes, pod); \
*(va_arg (args, uint32_t *)) = SPA_POD_BODY_SIZE (pod); \
break; \
case SPA_POD_TYPE_POINTER: \
{ \
SpaPODPointerBody *b = SPA_POD_BODY (pod); \
*(va_arg (args, void **)) = b->value; \
break; \
} \
case SPA_POD_TYPE_RECTANGLE: \
*(va_arg (args, SpaRectangle *)) = SPA_POD_VALUE (SpaPODRectangle, pod); \
break; \
case SPA_POD_TYPE_FRACTION: \
*(va_arg (args, SpaFraction *)) = SPA_POD_VALUE (SpaPODFraction, pod); \
break; \
case SPA_POD_TYPE_BITMASK: \
*(va_arg (args, uint32_t **)) = SPA_POD_CONTENTS (SpaPOD, pod); \
break; \
case SPA_POD_TYPE_ARRAY: \
case SPA_POD_TYPE_STRUCT: \
case SPA_POD_TYPE_OBJECT: \
case SPA_POD_TYPE_PROP: \
*(va_arg (args, SpaPOD **)) = pod; \
break; \
default: \
goto error; \
} \
case SPA_POD_TYPE_RECTANGLE: \
*(va_arg (args, SpaRectangle *)) = SPA_POD_VALUE (SpaPODRectangle, pod); \
break; \
case SPA_POD_TYPE_FRACTION: \
*(va_arg (args, SpaFraction *)) = SPA_POD_VALUE (SpaPODFraction, pod); \
break; \
case SPA_POD_TYPE_BITMASK: \
*(va_arg (args, uint32_t **)) = SPA_POD_CONTENTS (SpaPOD, pod); \
break; \
case SPA_POD_TYPE_ARRAY: \
case SPA_POD_TYPE_STRUCT: \
case SPA_POD_TYPE_OBJECT: \
case SPA_POD_TYPE_PROP: \
case SPA_POD_TYPE_POD: \
*(va_arg (args, SpaPOD **)) = pod; \
break; \
default: \
break; \
} \
} else \
goto error; \
} while (false); \
#define SPA_POD_COLLECT_SKIP(type,args) \
switch (type) { \
@ -184,13 +202,13 @@ spa_pod_contents_queryv (const SpaPOD *pod, uint32_t offset, uint32_t key, va_li
type = va_arg (args, uint32_t);
if (prop && prop->body.key == key &&
(type == SPA_POD_TYPE_POD || prop->body.value.type == type) &&
!(prop->body.flags & SPA_POD_PROP_FLAG_UNSET)) {
SPA_POD_COLLECT (&prop->body.value, type, args);
SPA_POD_COLLECT (&prop->body.value, type, args, next);
count++;
} else {
SPA_POD_COLLECT_SKIP (type, args);
}
next:
key = va_arg (args, uint32_t);
}
return count;