diff options
Diffstat (limited to 'src/include/utils/wait_event.h')
| -rw-r--r-- | src/include/utils/wait_event.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/include/utils/wait_event.h b/src/include/utils/wait_event.h index aad8bc08fa0..3eebdfad38b 100644 --- a/src/include/utils/wait_event.h +++ b/src/include/utils/wait_event.h @@ -44,12 +44,14 @@ extern PGDLLIMPORT uint32 *my_wait_event_info; * Use this category when the server process is waiting for some condition * defined by an extension module. * - * Extensions can define their own wait events in this category. First, - * they should call WaitEventExtensionNew() to get one or more wait event - * IDs that are allocated from a shared counter. These can be used directly - * with pgstat_report_wait_start() or equivalent. Next, each individual - * process should call WaitEventExtensionRegisterName() to associate a wait - * event string to the number allocated previously. + * Extensions can define their own wait events in this category. They should + * call WaitEventExtensionNew() with a wait event string. If the wait event + * associated to a string is already allocated, it returns the wait event + * information to use. If not, it gets one wait event ID allocated from + * a shared counter, associates the string to the ID in the shared dynamic + * hash and returns the wait event information. + * + * The ID retrieved can be used with pgstat_report_wait_start() or equivalent. */ typedef enum { @@ -60,9 +62,7 @@ typedef enum extern void WaitEventExtensionShmemInit(void); extern Size WaitEventExtensionShmemSize(void); -extern uint32 WaitEventExtensionNew(void); -extern void WaitEventExtensionRegisterName(uint32 wait_event_info, - const char *wait_event_name); +extern uint32 WaitEventExtensionNew(const char *wait_event_name); /* ---------- * pgstat_report_wait_start() - |