diff options
Diffstat (limited to 'erts/doc/src/driver_entry.xml')
| -rw-r--r-- | erts/doc/src/driver_entry.xml | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/erts/doc/src/driver_entry.xml b/erts/doc/src/driver_entry.xml index 48dfcb09b1..b34ca136f3 100644 --- a/erts/doc/src/driver_entry.xml +++ b/erts/doc/src/driver_entry.xml @@ -245,10 +245,14 @@ typedef struct erl_drv_entry { something that the <c>WaitForMultipleObjects</c> API function understands). (Some trickery in the emulator allows more than the built-in limit of 64 <c>Events</c> to be used.)</p> + <p>On Enea OSE the <c>event</c> is one or more signals that can + be retrieved using <seealso marker="ose:ose_erl_driver#erl_drv_ose_get_signal">erl_drv_ose_get_signal</seealso>.</p> <p>To use this with threads and asynchronous routines, create a - pipe on unix and an Event on Windows. When the routine + pipe on unix, an Event on Windows or a unique signal number on + Enea OSE. When the routine completes, write to the pipe (use <c>SetEvent</c> on - Windows), this will make the emulator call + Windows or send a message to the emulator process on Enea OSE), + this will make the emulator call <c>ready_input</c> or <c>ready_output</c>.</p> <p>Spurious events may happen. That is, calls to <c>ready_input</c> or <c>ready_output</c> even though no real events are signaled. In |