diff options
Diffstat (limited to 'erts/doc')
| -rw-r--r-- | erts/doc/src/driver.xml | 7 | ||||
| -rw-r--r-- | erts/doc/src/driver_entry.xml | 6 | ||||
| -rw-r--r-- | erts/doc/src/erl.xml | 19 | ||||
| -rw-r--r-- | erts/doc/src/erlang.xml | 7 |
4 files changed, 35 insertions, 4 deletions
diff --git a/erts/doc/src/driver.xml b/erts/doc/src/driver.xml index 006a6160de..db455312ec 100644 --- a/erts/doc/src/driver.xml +++ b/erts/doc/src/driver.xml @@ -196,11 +196,14 @@ static ErlDrvData start(ErlDrvPort port, char *command) <p>We call disconnect to log out from the database. (This should have been done from Erlang, but just in case.)</p> <code type="none"><![CDATA[ - static int do_disconnect(our_data_t* data, ei_x_buff* x); +static int do_disconnect(our_data_t* data, ei_x_buff* x); static void stop(ErlDrvData drv_data) { - do_disconnect((our_data_t*)drv_data, NULL); + our_data_t* data = (our_data_t*)drv_data; + + do_disconnect(data, NULL); + driver_free(data); } ]]></code> <p>We use the binary format only to return data to the emulator; diff --git a/erts/doc/src/driver_entry.xml b/erts/doc/src/driver_entry.xml index e71b48bd92..dd949d4048 100644 --- a/erts/doc/src/driver_entry.xml +++ b/erts/doc/src/driver_entry.xml @@ -172,7 +172,7 @@ typedef struct erl_drv_entry { added to the driver list.) The driver should return 0, or if the driver can't initialize, -1.</p> </item> - <tag><marker id="start"/>int (*start)(ErlDrvPort port, char* command)</tag> + <tag><marker id="start"/>ErlDrvData (*start)(ErlDrvPort port, char* command)</tag> <item> <p>This is called when the driver is instantiated, when <c>open_port/2</c> is called. The driver should return a @@ -188,7 +188,9 @@ typedef struct erl_drv_entry { <p>This is called when the port is closed, with <c>port_close/1</c> or <c>Port ! {self(), close}</c>. Note that terminating the port owner process also closes the - port.</p> + port. If <c>drv_data</c> is a pointer to memory allocated in + <c>start</c>, then <c>stop</c> is the place to deallocate that + memory.</p> </item> <tag><marker id="output"/>void (*output)(ErlDrvData drv_data, char *buf, int len)</tag> <item> diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml index e36d0adb0d..09c9cf6812 100644 --- a/erts/doc/src/erl.xml +++ b/erts/doc/src/erl.xml @@ -906,6 +906,25 @@ <seealso marker="kernel:error_logger#warning_map/0">error_logger(3)</seealso> for further information.</p> </item> + <tag><c><![CDATA[+zFlag Value]]></c></tag> + <item> + <p>Miscellaneous flags.</p> + <taglist> + <tag><marker id="+zdbbl"><c>+zdbbl size</c></marker></tag> + <item> + <p>Set the distribution buffer busy limit + (<seealso marker="erlang#system_info_dist_buf_busy_limit">dist_buf_busy_limit</seealso>) + in kilobytes. Valid range is 1-2097151. Default is 128.</p> + <p>A larger buffer limit will allow processes to buffer + more outgoing messages over the distribution. When the + buffer limit has been reached, sending processes will be + suspended until the buffer size has shrunk. The buffer + limit is per distribution channel. A higher limit will + give lower latency and higher throughput at the expense + of higher memory usage.</p> + </item> + </taglist> + </item> </taglist> </section> diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml index 59ac3dc66c..25c92bdbb7 100644 --- a/erts/doc/src/erlang.xml +++ b/erts/doc/src/erlang.xml @@ -5624,6 +5624,13 @@ true</pre> The return value will always be <c>false</c> since the elib_malloc allocator has been removed.</p> </item> + <tag><marker id="system_info_dist_buf_busy_limit"><c>dist_buf_busy_limit</c></marker></tag> + <item> + <p>Returns the value of the distribution buffer busy limit + in bytes. This limit can be set on startup by passing the + <seealso marker="erl#+zdbbl">+zdbbl</seealso> command line + flag to <c>erl</c>.</p> + </item> <tag><c>fullsweep_after</c></tag> <item> <p>Returns <c>{fullsweep_after, int()}</c> which is the |