libyrmcds
memcached/yrmcds client library for C
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yrmcds_error yrmcds_decr ( yrmcds c,
const char *  key,
size_t  key_len,
uint64_t  value,
int  quiet,
uint32_t *  serial 
)

Send Decrement/DecrementQ command.

Parameters
cA pointer to yrmcds.
keyKey data.
key_lenLength of key.
valueAmount to add.
quiet0 to send Decrement, other values to send DecrementQ.
serialA pointer to uint32_t, or NULL.
Returns
0 if succeeded. Other values indicate an error.

This function sends Decrement/DecrementQ command to the server. If key is not found, the command will fail.

If serial is not NULL, the serial number of the request will be stored if the command was sent successfully.