hcq/MaxScale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MXS-1392 Remove remnats of DCB reference counting

Browse Source
This commit is contained in:
Johan Wikman
2017-09-08 11:27:30 +03:00
parent 70a4ad6532
commit 402b27ad01
5 changed files with 0 additions and 104 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
server/core/maxscale/dcb.h
View File

@ -19,58 +19,4 @@ MXS_BEGIN_DECLS
void dcb_free_all_memory(DCB *dcb);
void dcb_final_close(DCB *dcb);
/**
* @brief Increase the reference count of the DCB
*
* @param dcb The dcb whose reference count should be increased.
*/
static inline void dcb_inc_ref(DCB* dcb)
{
// A DCB starts out with a refcount of 1.
ss_dassert(dcb->poll.refcount >= 1);
poll_inc_ref(&dcb->poll);
}
/**
* @brief Decrease the reference count of the DCB. If it reaches 0,
* the DCB will be freed.
*
* @param dcb The dcb whose reference count should be decreased.
*
* @return True, if the dcb is still usable after the call, otherwise false.
*
* @note If the function returns false, the caller cannot use the dcb
* for anything.
*/
static inline bool dcb_dec_ref(DCB* dcb)
{
// A DCB starts out with a refcount of 1.
ss_dassert(dcb->poll.refcount >= 1);
bool rv = true;
if (poll_dec_ref(&dcb->poll) == 1)
{
dcb_free_all_memory(dcb);
rv = false;
}
return rv;
}
/**
* @brief Increase the reference count of the DCB.
*
* Convenience function for the situation where a received dcb is stored
* and the reference count needs to be increased.
*
* @param dcb The dcb whose reference count should be increased.
*
* @return The dcb provided as argument.
*/
static inline DCB* dcb_get_ref(DCB* dcb)
{
dcb_inc_ref(dcb);
return dcb;
}
MXS_END_DECLS