diff options
Diffstat (limited to 'doc/src')
| -rw-r--r-- | doc/src/sgml/bgworker.sgml | 16 |
1 files changed, 1 insertions, 15 deletions
diff --git a/doc/src/sgml/bgworker.sgml b/doc/src/sgml/bgworker.sgml index 9d9b631ac1a..268e1cd2153 100644 --- a/doc/src/sgml/bgworker.sgml +++ b/doc/src/sgml/bgworker.sgml @@ -48,7 +48,6 @@ The structure <structname>BackgroundWorker</structname> is defined thus: <programlisting> typedef void (*bgworker_main_type)(void *main_arg); -typedef void (*bgworker_sighdlr_type)(SIGNAL_ARGS); typedef struct BackgroundWorker { char bgw_name[BGW_MAXLEN]; @@ -59,8 +58,6 @@ typedef struct BackgroundWorker char bgw_library_name[BGW_MAXLEN]; /* only if bgw_main is NULL */ char bgw_function_name[BGW_MAXLEN]; /* only if bgw_main is NULL */ Datum bgw_main_arg; - bgworker_sighdlr_type bgw_sighup; - bgworker_sighdlr_type bgw_sigterm; } BackgroundWorker; </programlisting> </para> @@ -138,17 +135,6 @@ typedef struct BackgroundWorker <structfield>bgw_main</structfield> is NULL. </para> - <para> - <structfield>bgw_sighup</structfield> and <structfield>bgw_sigterm</> are - pointers to functions that will be installed as signal handlers for the new - process. If <structfield>bgw_sighup</> is NULL, then <literal>SIG_IGN</> - is used; if <structfield>bgw_sigterm</> is NULL, a handler is installed that - will terminate the process after logging a suitable message. These - fields should not be used if <structfield>bgw_main</> is NULL; instead, - the worker process should set its own signal handlers before calling - <function>BackgroundWorkerUnblockSignals()</function>. - </para> - <para>Once running, the process can connect to a database by calling <function>BackgroundWorkerInitializeConnection(<parameter>char *dbname</parameter>, <parameter>char *username</parameter>)</function>. This allows the process to run transactions and queries using the @@ -163,7 +149,7 @@ typedef struct BackgroundWorker <para> Signals are initially blocked when control reaches the <structfield>bgw_main</> function, and must be unblocked by it; this is to - allow the process to further customize its signal handlers, if necessary. + allow the process to customize its signal handlers, if necessary. Signals can be unblocked in the new process by calling <function>BackgroundWorkerUnblockSignals</> and blocked by calling <function>BackgroundWorkerBlockSignals</>. |