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author | Erlang/OTP <[email protected]> | 2009-11-20 14:54:40 +0000 |
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committer | Erlang/OTP <[email protected]> | 2009-11-20 14:54:40 +0000 |
commit | 84adefa331c4159d432d22840663c38f155cd4c1 (patch) | |
tree | bff9a9c66adda4df2106dfd0e5c053ab182a12bd /erts/emulator/test/ddll_SUITE_data/echo_drv.c | |
download | otp-84adefa331c4159d432d22840663c38f155cd4c1.tar.gz otp-84adefa331c4159d432d22840663c38f155cd4c1.tar.bz2 otp-84adefa331c4159d432d22840663c38f155cd4c1.zip |
The R13B03 release.OTP_R13B03
Diffstat (limited to 'erts/emulator/test/ddll_SUITE_data/echo_drv.c')
-rw-r--r-- | erts/emulator/test/ddll_SUITE_data/echo_drv.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/erts/emulator/test/ddll_SUITE_data/echo_drv.c b/erts/emulator/test/ddll_SUITE_data/echo_drv.c new file mode 100644 index 0000000000..edf78a979d --- /dev/null +++ b/erts/emulator/test/ddll_SUITE_data/echo_drv.c @@ -0,0 +1,52 @@ +#include <stdio.h> +#include "erl_driver.h" + +static ErlDrvPort erlang_port; +static ErlDrvData echo_start(ErlDrvPort, char *); +static void from_erlang(ErlDrvData, char*, int); +static int echo_call(ErlDrvData drv_data, unsigned int command, char *buf, + int len, char **rbuf, int rlen, unsigned *ret_flags); +static ErlDrvEntry echo_driver_entry = { + NULL, /* Init */ + echo_start, + NULL, /* Stop */ + from_erlang, + NULL, /* Ready input */ + NULL, /* Ready output */ + "echo_drv", + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + echo_call +}; + +DRIVER_INIT(echo_drv) +{ + return &echo_driver_entry; +} + +static ErlDrvData +echo_start(ErlDrvPort port, char *buf) +{ + return (ErlDrvData) port; +} + +static void +from_erlang(ErlDrvData data, char *buf, int count) +{ + driver_output((ErlDrvPort) data, buf, count); +} + +static int +echo_call(ErlDrvData drv_data, unsigned int command, char *buf, + int len, char **rbuf, int rlen, unsigned *ret_flags) +{ + *rbuf = buf; + *ret_flags |= DRIVER_CALL_KEEP_BUFFER; + return len; +} + |