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authorSverker Eriksson <[email protected]>2010-11-09 17:02:31 +0100
committerSverker Eriksson <[email protected]>2010-11-09 17:02:31 +0100
commit033584eab11944fa8e3c2b55747cce887cd98877 (patch)
tree4a17a4d87e330cd8277118aa2908dc2713030968 /erts/doc/src/driver_entry.xml
parentf26528bbea0a24674e797a58b97117c1f8cf163f (diff)
parent24524dbd7867a27ba0550dbfd2c3fafed5ae0ca5 (diff)
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Merge branch 'sverker/doc-fixes/OTP-8880' into dev
* sverker/doc-fixes/OTP-8880: Documentation update to ETS and drivers
Diffstat (limited to 'erts/doc/src/driver_entry.xml')
-rw-r--r--erts/doc/src/driver_entry.xml6
1 files changed, 4 insertions, 2 deletions
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>