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Add privdata field to reply reader

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This field is set in the read tasks that are passed to the reply object
functions. This allows to curry arbitrary data to these functions.
This commit is contained in:
Pieter Noordhuis 2010-11-24 12:27:44 +01:00
parent fb49cd1988
commit 1927c643da
2 changed files with 17 additions and 0 deletions
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15
hiredis.c
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@ -48,6 +48,7 @@ typedef struct redisReader {
redisReadTask rstack[3]; /* stack of read tasks */
int ridx; /* index of stack */
void *privdata; /* user-settable arbitrary field */
} redisReader;
static redisReply *createReplyObject(int type);
@ -307,6 +308,7 @@ static int processMultiBulkItem(redisReader *r) {
r->rstack[r->ridx].elements = -1;
r->rstack[r->ridx].parent = obj;
r->rstack[r->ridx].idx = 0;
r->rstack[r->ridx].privdata = r->privdata;
} else {
moveToNextTask(r);
}
@ -393,6 +395,17 @@ int redisReplyReaderSetReplyObjectFunctions(void *reader, redisReplyObjectFuncti
return REDIS_ERR;
}
/* Set the private data field that is used in the read tasks. This argument can
* be used to curry arbitrary data to the custom reply object functions. */
int redisReplyReaderSetPrivdata(void *reader, void *privdata) {
redisReader *r = reader;
if (r->reply == NULL) {
r->privdata = privdata;
return REDIS_OK;
}
return REDIS_ERR;
}
/* External libraries wrapping hiredis might need access to the temporary
* variable while the reply is built up. When the reader contains an
* object in between receiving some bytes to parse, this object might
@ -426,6 +439,7 @@ static void redisSetReplyReaderError(redisReader *r, sds err) {
r->ridx = -1;
r->error = err;
}
int redisReplyReaderSetPrivdata(void *reader, void *privdata);
char *redisReplyReaderGetError(void *reader) {
redisReader *r = reader;
@ -454,6 +468,7 @@ int redisReplyReaderGetReply(void *reader, void **reply) {
r->rstack[0].elements = -1;
r->rstack[0].parent = NULL;
r->rstack[0].idx = -1;
r->rstack[0].privdata = r->privdata;
r->ridx = 0;
}

2
hiredis.h
View File

@ -88,6 +88,7 @@ typedef struct redisReadTask {
int elements; /* number of elements in multibulk container */
void *parent; /* optional pointer to parent object */
int idx; /* index in parent (array) object */
void *privdata; /* user-settable arbitrary field */
} redisReadTask;
typedef struct redisReplyObjectFunctions {
@ -116,6 +117,7 @@ typedef struct redisContext {
void freeReplyObject(void *reply);
void *redisReplyReaderCreate();
int redisReplyReaderSetReplyObjectFunctions(void *reader, redisReplyObjectFunctions *fn);
int redisReplyReaderSetPrivdata(void *reader, void *privdata);
void *redisReplyReaderGetObject(void *reader);
char *redisReplyReaderGetError(void *reader);
void redisReplyReaderFree(void *ptr);