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snmp: fixed ugly inheritance implementation by aggregating the "base class" (struct mib_node) in all derived node classes to get more type-safe code

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This commit is contained in:
Dirk Ziegelmeier
2015-09-30 17:54:25 +02:00
committed by goldsimon
parent 59002d5081
commit 7962b21c00
3 changed files with 447 additions and 410 deletions
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32
src/include/lwip/snmp_structs.h
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@@ -128,13 +128,7 @@ typedef struct mib_node mib_scalar_node;
struct mib_array_node
{
/* inherited "base class" members */
void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
void (*get_value)(struct obj_def *od, u16_t len, void *value);
u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
void (*set_value)(struct obj_def *od, u16_t len, void *value);
u8_t node_type;
u16_t maxlength;
struct mib_node node;
/* additional struct members */
const s32_t *objid;
@@ -146,13 +140,7 @@ struct mib_array_node
struct mib_ram_array_node
{
/* inherited "base class" members */
void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
void (*get_value)(struct obj_def *od, u16_t len, void *value);
u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
void (*set_value)(struct obj_def *od, u16_t len, void *value);
u8_t node_type;
u16_t maxlength;
struct mib_node node;
/* aditional struct members */
s32_t *objid;
@@ -172,13 +160,7 @@ struct mib_list_node
struct mib_list_rootnode
{
/* inherited "base class" members */
void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
void (*get_value)(struct obj_def *od, u16_t len, void *value);
u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
void (*set_value)(struct obj_def *od, u16_t len, void *value);
u8_t node_type;
u16_t maxlength;
struct mib_node node;
/* additional struct members */
struct mib_list_node *head;
@@ -192,13 +174,7 @@ struct mib_list_rootnode
struct mib_external_node
{
/* inherited "base class" members */
void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
void (*get_value)(struct obj_def *od, u16_t len, void *value);
u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
void (*set_value)(struct obj_def *od, u16_t len, void *value);
u8_t node_type;
u16_t maxlength;
struct mib_node node;
/* additional struct members */
/** points to an external (in memory) record of some sort of addressing