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| author | Peter Lemenkov <[email protected]> | 2014-11-02 19:49:55 +0300 |
|---|---|---|
| committer | Peter Lemenkov <[email protected]> | 2014-11-02 19:52:00 +0300 |
| commit | 1bc59d68f5d22650fa18aa064ed8e50fc9a6a216 (patch) | |
| tree | bf0a5463c3ba1c84fa91e392cd8e9ca98b84d528 /erts | |
| parent | 4e969748e47566c974ce526ade50c34ab62e3b26 (diff) | |
| download | otp-1bc59d68f5d22650fa18aa064ed8e50fc9a6a216.tar.gz otp-1bc59d68f5d22650fa18aa064ed8e50fc9a6a216.tar.bz2 otp-1bc59d68f5d22650fa18aa064ed8e50fc9a6a216.zip | |
Expose NIF version
This patch allows checking for NIF API version in a way similar to
driver version. E.g. by calling erlang:system_info(nif_version).
Signed-off-by: Peter Lemenkov <[email protected]>
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/doc/src/erlang.xml | 5 | ||||
| -rw-r--r-- | erts/emulator/beam/erl_bif_info.c | 8 | ||||
| -rw-r--r-- | erts/emulator/test/driver_SUITE.erl | 4 | ||||
| -rw-r--r-- | erts/preloaded/src/erlang.erl | 1 |
4 files changed, 16 insertions, 2 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml index 111756407f..483d81cfb6 100644 --- a/erts/doc/src/erlang.xml +++ b/erts/doc/src/erlang.xml @@ -6144,6 +6144,11 @@ ok <seealso marker="#system_info_multi_scheduling">erlang:system_info(multi_scheduling)</seealso>, and <seealso marker="#system_info_schedulers">erlang:system_info(schedulers)</seealso>.</p> </item> + <tag><c>nif_version</c></tag> + <item> + <p>Returns a string containing the erlang NIF version + used by the runtime system. It will be on the form "<major ver>.<minor ver>".</p> + </item> <tag><marker id="system_info_otp_release"><c>otp_release</c></marker></tag> <item> <p>Returns a string containing the OTP release number of the diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index 61e4469600..2c00a5860e 100644 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -27,6 +27,7 @@ #include "erl_process.h" #include "error.h" #include "erl_driver.h" +#include "erl_nif.h" #include "bif.h" #include "big.h" #include "erl_version.h" @@ -2459,6 +2460,13 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) ERL_DRV_EXTENDED_MINOR_VERSION); hp = HAlloc(BIF_P, 2*n); BIF_RET(buf_to_intlist(&hp, buf, n, NIL)); + } else if (ERTS_IS_ATOM_STR("nif_version", BIF_ARG_1)) { + char buf[42]; + int n = erts_snprintf(buf, 42, "%d.%d", + ERL_NIF_MAJOR_VERSION, + ERL_NIF_MINOR_VERSION); + hp = HAlloc(BIF_P, 2*n); + BIF_RET(buf_to_intlist(&hp, buf, n, NIL)); } else if (ERTS_IS_ATOM_STR("smp_support", BIF_ARG_1)) { #ifdef ERTS_SMP BIF_RET(am_true); diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl index 8d2c620be0..623d62f876 100644 --- a/erts/emulator/test/driver_SUITE.erl +++ b/erts/emulator/test/driver_SUITE.erl @@ -1204,8 +1204,8 @@ check_si_res(["sched_thrs", Value]) -> ?line Value = integer_to_list(erlang:system_info(schedulers)); %% Data added in 3rd version of driver_system_info() (driver version 1.5) -check_si_res(["emu_nif_vsn", _Value]) -> - true; +check_si_res(["emu_nif_vsn", Value]) -> + ?line Value = erlang:system_info(nif_version); %% Data added in 4th version of driver_system_info() (driver version 3.1) check_si_res(["dirty_sched", _Value]) -> diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl index 4ba623d921..611a568014 100644 --- a/erts/preloaded/src/erlang.erl +++ b/erts/preloaded/src/erlang.erl @@ -2252,6 +2252,7 @@ tuple_to_list(_Tuple) -> (modified_timing_level) -> integer() | undefined; (multi_scheduling) -> disabled | blocked | enabled; (multi_scheduling_blockers) -> [PID :: pid()]; + (nif_version) -> string(); (otp_release) -> string(); (port_count) -> non_neg_integer(); (port_limit) -> pos_integer(); |