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Make addReplyError...() family functions able to get error codes.

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Now you can use:

    addReplyError("-MYERRORCODE some message");

If the error code is omitted, the behavior is like in the past,
the generic -ERR will be used.
This commit is contained in:
antirez 2018-02-16 16:18:01 +01:00
parent 54b9a0e612
commit 00a29b1a81
1 changed files with 11 additions and 1 deletions
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12
src/networking.c
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@ -385,8 +385,18 @@ void addReplyString(client *c, const char *s, size_t len) {
_addReplyStringToList(c,s,len); _addReplyStringToList(c,s,len);
} }
/* Low level function called by the addReplyError...() functions.
* It emits the protocol for a Redis error, in the form:
*
* -ERRORCODE Error Message<CR><LF>
*
* If the error code is already passed in the string 's', the error
* code provided is used, otherwise the string "-ERR " for the generic
* error code is automatically added. */
void addReplyErrorLength(client *c, const char *s, size_t len) { void addReplyErrorLength(client *c, const char *s, size_t len) {
addReplyString(c,"-ERR ",5); /* If the string already starts with "-..." then the error code
* is provided by the caller. Otherwise we use "-ERR". */
if (!len || s[0] != '-') addReplyString(c,"-ERR ",5);
addReplyString(c,s,len); addReplyString(c,s,len);
addReplyString(c,"\r\n",2); addReplyString(c,"\r\n",2);
if (c->flags & CLIENT_MASTER) { if (c->flags & CLIENT_MASTER) {