From 6d1f1d43aa0a9e0a2cb275ef760339c49518fc69 Mon Sep 17 00:00:00 2001 From: Patrik Nyblom Date: Fri, 16 Aug 2013 17:14:25 +0200 Subject: Create better distribution of files over async threads The actual port id is used to create a key from the pointer value which is the ErlDrvPort. To do this a new driver api function driver_async_port_key is added and the driver API minor version is updated. The documentation is updated and the faulty description of how to spread ports over async threads is updated to use the new API. Testcase also added. --- erts/emulator/sys/win32/erl_win_dyn_driver.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'erts/emulator/sys/win32') diff --git a/erts/emulator/sys/win32/erl_win_dyn_driver.h b/erts/emulator/sys/win32/erl_win_dyn_driver.h index a7c53c904d..b9a9838a36 100644 --- a/erts/emulator/sys/win32/erl_win_dyn_driver.h +++ b/erts/emulator/sys/win32/erl_win_dyn_driver.h @@ -80,6 +80,7 @@ WDD_TYPEDEF(int, erl_drv_output_term, (ErlDrvTermData, ErlDrvTermData*, int)); WDD_TYPEDEF(int, driver_output_term, (ErlDrvPort, ErlDrvTermData*, int)); WDD_TYPEDEF(int, erl_drv_send_term, (ErlDrvTermData, ErlDrvTermData, ErlDrvTermData*, int)); WDD_TYPEDEF(int, driver_send_term, (ErlDrvPort, ErlDrvTermData, ErlDrvTermData*, int)); +WDD_TYPEDEF(unsigned int, driver_async_port_key, (ErlDrvPort)); WDD_TYPEDEF(long, driver_async, (ErlDrvPort,unsigned int*,void (*)(void*),void*,void (*)(void*))); WDD_TYPEDEF(int, driver_async_cancel, (unsigned int)); WDD_TYPEDEF(int, driver_lock_driver, (ErlDrvPort)); @@ -197,6 +198,7 @@ typedef struct { WDD_FTYPE(driver_output_term) *driver_output_term; WDD_FTYPE(erl_drv_send_term) *erl_drv_send_term; WDD_FTYPE(driver_send_term) *driver_send_term; + WDD_FTYPE(driver_async_port_key) *driver_async_port_key; WDD_FTYPE(driver_async) *driver_async; WDD_FTYPE(driver_async_cancel) *driver_async_cancel; WDD_FTYPE(driver_lock_driver) *driver_lock_driver; @@ -308,6 +310,7 @@ extern TWinDynDriverCallbacks WinDynDriverCallbacks; #define driver_output_term (WinDynDriverCallbacks.driver_output_term) #define erl_drv_send_term (WinDynDriverCallbacks.erl_drv_send_term) #define driver_send_term (WinDynDriverCallbacks.driver_send_term) +#define driver_async_port_key (WinDynDriverCallbacks.driver_async_port_key) #define driver_async (WinDynDriverCallbacks.driver_async) #define driver_async_cancel (WinDynDriverCallbacks.driver_async_cancel) #define driver_lock_driver (WinDynDriverCallbacks.driver_lock_driver) @@ -443,6 +446,7 @@ do { \ ((W).driver_output_term) = driver_output_term; \ ((W).erl_drv_send_term) = erl_drv_send_term; \ ((W).driver_send_term) = driver_send_term; \ +((W).driver_async_port_key) = driver_async_port_key; \ ((W).driver_async) = driver_async; \ ((W).driver_async_cancel) = driver_async_cancel; \ ((W).driver_lock_driver) = driver_lock_driver; \ -- cgit v1.2.3