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msgbuf: add lowlevel interface for building MsgBuf objects

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This commit is contained in:
William Pitcock 2016-02-09 23:19:13 -06:00
parent b830b64106
commit 88b427b61d
1 changed files with 33 additions and 2 deletions
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35
include/msgbuf.h
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@ -48,13 +48,44 @@ struct MsgBuf {
*/ */
int msgbuf_parse(struct MsgBuf *msgbuf, const char *line); int msgbuf_parse(struct MsgBuf *msgbuf, const char *line);
/*
* unparse a pure MsgBuf into a buffer.
* if origin is NULL, me.name will be used.
* cmd may not be NULL.
* returns 0 on success, 1 on error.
*/
int msgbuf_unparse(char *buf, struct MsgBuf *msgbuf);
/* /*
* unparse a MsgBuf header plus payload into a buffer. * unparse a MsgBuf header plus payload into a buffer.
* if origin is NULL, me.name will be used. * if origin is NULL, me.name will be used.
* cmd may not be NULL. * cmd may not be NULL.
* returns 0 on success, 1 on error. * returns 0 on success, 1 on error.
*/ */
int msgbuf_unparse(char *buf, struct MsgBuf *head, const char *fmt, ...) AFP(3, 4); int msgbuf_unparse_fmt(char *buf, struct MsgBuf *head, const char *fmt, ...) AFP(3, 4);
int msgbuf_vunparse(char *buf, struct MsgBuf *head, const char *fmt, va_list va); int msgbuf_vunparse_fmt(char *buf, struct MsgBuf *head, const char *fmt, va_list va);
static inline void
msgbuf_init(struct MsgBuf *msgbuf)
{
msgbuf->n_tags = msgbuf->n_para = msgbuf->parselen = 0;
msgbuf->origin = NULL;
msgbuf->cmd = NULL;
}
static inline void
msgbuf_append_tag(struct MsgBuf *msgbuf, const char *key, const char *value)
{
msgbuf->tags[msgbuf->n_tags].key = key;
msgbuf->tags[msgbuf->n_tags].value = value;
msgbuf->n_tags++;
}
static inline void
msgbuf_append_para(struct MsgBuf *msgbuf, const char *para)
{
msgbuf->para[msgbuf->n_para] = para;
msgbuf->n_para++;
}
#endif #endif