From c7b211b18466c69df976a6d71f1c8ba30145f14c Mon Sep 17 00:00:00 2001 From: Gerhard Sittig Date: Wed, 15 Aug 2018 23:09:11 +0200 Subject: log: add a public srd_log_callback_get() API routine Allow applications to query the currently registered log callback. So they can either restore the previously registered routine, or register another routine _and_ log to the previously registered routine as well. --- log.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'log.c') diff --git a/log.c b/log.c index 459a5c1..b5402f8 100644 --- a/log.c +++ b/log.c @@ -129,6 +129,28 @@ SRD_API int srd_log_callback_set(srd_log_callback cb, void *cb_data) return SRD_OK; } +/** + * Get the libsigrokdecode log callback routine and callback data. + * + * @param[out] cb Pointer to a function pointer to receive the log callback + * function. Optional, can be NULL. + * @param[out] cb_data Pointer to a void pointer to receive the log callback's + * additional arguments. Optional, can be NULL. + * + * @return SRD_OK upon success. + * + * @since 0.6.0 + */ +SRD_API int srd_log_callback_get(srd_log_callback *cb, void **cb_data) +{ + if (cb) + *cb = srd_log_cb; + if (cb_data) + *cb_data = srd_log_cb_data; + + return SRD_OK; +} + /** * Set the libsigrokdecode log callback to the default built-in one. * -- cgit v1.2.3-70-g09d2