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json: add const string dispatcher

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This adds json_dispatch_const_string() which is similar to
json_dispatch_string() but doesn't store a strdup()'ed copy of the
string, but a pointer directly into the JSON record.

This should simplify cases where the json variant sticks around long
enough anyway.
This commit is contained in:
Lennart Poettering
2019-12-02 09:47:00 +01:00
parent e4defdc4b0
commit 19a209cc71
2 changed files with 22 additions and 0 deletions
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src/shared/json.h
+1
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@@ -273,6 +273,7 @@ typedef struct JsonDispatch {
int json_dispatch(JsonVariant *v, const JsonDispatch table[], JsonDispatchCallback bad, JsonDispatchFlags flags, void *userdata);
int json_dispatch_string(const char *name, JsonVariant *variant, JsonDispatchFlags flags, void *userdata);
int json_dispatch_const_string(const char *name, JsonVariant *variant, JsonDispatchFlags flags, void *userdata);
int json_dispatch_strv(const char *name, JsonVariant *variant, JsonDispatchFlags flags, void *userdata);
int json_dispatch_boolean(const char *name, JsonVariant *variant, JsonDispatchFlags flags, void *userdata);
int json_dispatch_tristate(const char *name, JsonVariant *variant, JsonDispatchFlags flags, void *userdata);