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-rw-r--r--erts/doc/src/driver.xml7
-rw-r--r--erts/doc/src/driver_entry.xml6
-rw-r--r--erts/doc/src/epmd.xml4
-rw-r--r--erts/doc/src/erl.xml21
-rw-r--r--erts/doc/src/erlang.xml11
5 files changed, 40 insertions, 9 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/epmd.xml b/erts/doc/src/epmd.xml
index f01cf90a36..474230cb38 100644
--- a/erts/doc/src/epmd.xml
+++ b/erts/doc/src/epmd.xml
@@ -119,7 +119,7 @@
<tag><c><![CDATA[-port No]]></c></tag>
<item>
<p>Let this instance of epmd listen to another TCP port than
- default 4369. This can be also be set using the
+ default 4369. This can also be set using the
<c><![CDATA[ERL_EPMD_PORT]]></c> environment variable, see the
section <seealso marker="#environment_variables">Environment
variables</seealso> below</p>
@@ -186,7 +186,7 @@
<tag><c><![CDATA[-port No]]></c></tag>
<item>
<p>Contacts the <c>epmd</c> listening on the given TCP port number
- (default 4369). This can be also be set using the
+ (default 4369). This can also be set using the
<c><![CDATA[ERL_EPMD_PORT]]></c> environment variable, see the
section <seealso marker="#environment_variables">Environment
variables</seealso> below</p>
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index e36d0adb0d..a1d73fb698 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -686,7 +686,7 @@
</p></item>
</taglist>
<p>Binding of schedulers is currently only supported on newer
- Linux, Solaris, and Windows systems.</p>
+ Linux, Solaris, FreeBSD, and Windows systems.</p>
<p>If no CPU topology is available when the <c>+sbt</c> flag
is processed and <c>BindType</c> is any other type than
<c>u</c>, the runtime system will fail to start. CPU
@@ -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 1024.</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..638f7eef10 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -5178,7 +5178,7 @@ true</pre>
<seealso marker="#system_info_scheduler_bindings">erlang:system_info(scheduler_bindings)</seealso>.
</p>
<p>Schedulers can currently only be bound on newer Linux,
- Solaris, and Windows systems, but more systems will be
+ Solaris, FreeBSD, and Windows systems, but more systems will be
supported in the future.
</p>
<p>In order for the runtime system to be able to bind schedulers,
@@ -5559,7 +5559,7 @@ true</pre>
<item>
<p>Returns the automatically detected <c>CpuTopology</c>. The
emulator currently only detects the CPU topology on some newer
- Linux, Solaris, and Windows systems. On Windows system with
+ Linux, Solaris, FreeBSD, and Windows systems. On Windows system with
more than 32 logical processors the CPU topology is not detected.
</p>
<p>For more information see the documentation of the
@@ -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