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-rw-r--r--erts/doc/src/erl_driver.xml5
-rw-r--r--erts/doc/src/erl_nif.xml25
-rw-r--r--erts/emulator/beam/erl_driver.h2
-rw-r--r--erts/emulator/beam/erl_drv_nif.h1
-rw-r--r--erts/emulator/beam/erl_nif.c10
-rw-r--r--erts/emulator/beam/erl_nif_api_funcs.h2
-rw-r--r--erts/emulator/beam/io.c12
-rw-r--r--erts/emulator/test/driver_SUITE.erl38
-rw-r--r--erts/emulator/test/driver_SUITE_data/sys_info_base_drv.c9
-rw-r--r--erts/emulator/test/driver_SUITE_data/sys_info_curr_drv.c11
-rw-r--r--erts/emulator/test/driver_SUITE_data/sys_info_prev_drv.c9
-rw-r--r--erts/emulator/test/nif_SUITE_data/nif_SUITE.c12
12 files changed, 85 insertions, 51 deletions
diff --git a/erts/doc/src/erl_driver.xml b/erts/doc/src/erl_driver.xml
index ad37813ac0..4a1aab75c7 100644
--- a/erts/doc/src/erl_driver.xml
+++ b/erts/doc/src/erl_driver.xml
@@ -546,6 +546,7 @@ typedef struct ErlDrvSysInfo {
int scheduler_threads;
int nif_major_version;
int nif_minor_version;
+ int dirty_scheduler_support;
} ErlDrvSysInfo;
</code>
@@ -610,6 +611,10 @@ typedef struct ErlDrvSysInfo {
<tag><c>nif_minor_version</c></tag>
<item>The value of <c>ERL_NIF_MINOR_VERSION</c> when the runtime system was compiled.
</item>
+ <tag><c>dirty_scheduler_support</c></tag>
+ <item>A value <c>!= 0</c> if the runtime system has support for dirty scheduler threads;
+ otherwise <c>0</c>.
+ </item>
</taglist>
</item>
<tag><marker id="ErlDrvBinary"/>ErlDrvBinary</tag>
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index 1d33b334bb..3de94be9ff 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -374,9 +374,8 @@ ok
the dirty NIF API is available, native code can check to see if the C preprocessor macro
<c>ERL_NIF_DIRTY_SCHEDULER_SUPPORT</c> is defined. Also, if the Erlang runtime was built
without threading support, dirty schedulers are disabled. To check at runtime for the presence
- of dirty scheduler threads, code can call the <seealso marker="#enif_have_dirty_schedulers"><c>
- enif_have_dirty_schedulers()</c></seealso> API function, which returns true if dirty
- scheduler threads are present, false otherwise.</p></note>
+ of dirty scheduler threads, code can use the <seealso marker="#enif_system_info"><c>
+ enif_system_info()</c></seealso> API function.</p></note>
</item>
</taglist>
</section>
@@ -807,22 +806,6 @@ typedef enum {
and return true, or return false if <c>term</c> is not an unsigned integer or is
outside the bounds of type <c>unsigned long</c>.</p></desc>
</func>
- <func><name><ret>int</ret><nametext>enif_have_dirty_schedulers()</nametext></name>
- <fsummary>Runtime check for the presence of dirty scheduler threads</fsummary>
- <desc>
- <p>Check at runtime for the presence of dirty scheduler threads. If the emulator is
- built with threading support, dirty scheduler threads are available and
- <c>enif_have_dirty_schedulers()</c> returns true. If the emulator was built without
- threading support, <c>enif_have_dirty_schedulers()</c> returns false.</p>
- <p>If dirty scheduler threads are not available in the emulator, a call to
- <c>enif_schedule_nif</c> with its <c>flags</c> argument set to indicate that the specified
- NIF is to be executed on a dirty scheduler thread results in a <c>badarg</c> exception.</p>
- <note><p>This function is available only when the emulator is configured with dirty
- schedulers enabled. This feature is currently disabled by default. To determine whether
- the dirty NIF API is available, native code can check to see if the C preprocessor macro
- <c>ERL_NIF_DIRTY_SCHEDULER_SUPPORT</c> is defined.</p></note>
- </desc>
- </func>
<func><name><ret>int</ret><nametext>enif_inspect_binary(ErlNifEnv* env, ERL_NIF_TERM bin_term, ErlNifBinary* bin)</nametext></name>
<fsummary>Inspect the content of a binary</fsummary>
<desc><p>Initialize the structure pointed to by <c>bin</c> with
@@ -1261,7 +1244,9 @@ typedef enum {
<p>The <c>flags</c> argument must be set to 0 for a regular NIF, or if the emulator was built the
experimental dirty scheduler support enabled, <c>flags</c> can be set to either <c>ERL_NIF_DIRTY_JOB_CPU_BOUND</c>
if the job is expected to be primarily CPU-bound, or <c>ERL_NIF_DIRTY_JOB_IO_BOUND</c> for jobs that will
- be I/O-bound.</p>
+ be I/O-bound. If dirty scheduler threads are not available in the emulator, a try to schedule such a job
+ will result in a <c>badarg</c> exception.</p>
+
<p>The <c>argc</c> and <c>argv</c> arguments can either be the originals passed into the calling NIF, or
they can be values created by the calling NIF.</p>
<p>The calling NIF must use the return value of <c>enif_schedule_nif</c> as its own return value.</p>
diff --git a/erts/emulator/beam/erl_driver.h b/erts/emulator/beam/erl_driver.h
index 5ced8c5ca0..f9938fc66c 100644
--- a/erts/emulator/beam/erl_driver.h
+++ b/erts/emulator/beam/erl_driver.h
@@ -133,7 +133,7 @@ typedef struct {
#define ERL_DRV_EXTENDED_MARKER (0xfeeeeeed)
#define ERL_DRV_EXTENDED_MAJOR_VERSION 3
-#define ERL_DRV_EXTENDED_MINOR_VERSION 0
+#define ERL_DRV_EXTENDED_MINOR_VERSION 1
/*
* The emulator will refuse to load a driver with a major version
diff --git a/erts/emulator/beam/erl_drv_nif.h b/erts/emulator/beam/erl_drv_nif.h
index 3f829ea7ea..4e8c6dc68b 100644
--- a/erts/emulator/beam/erl_drv_nif.h
+++ b/erts/emulator/beam/erl_drv_nif.h
@@ -35,6 +35,7 @@ typedef struct {
int scheduler_threads;
int nif_major_version;
int nif_minor_version;
+ int dirty_scheduler_support;
} ErlDrvSysInfo;
typedef struct {
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 44914d3681..ede5f335dc 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -1901,16 +1901,6 @@ enif_is_on_dirty_scheduler(ErlNifEnv* env)
return ERTS_SCHEDULER_IS_DIRTY(env->proc->scheduler_data);
}
-int
-enif_have_dirty_schedulers()
-{
-#ifdef USE_THREADS
- return 1;
-#else
- return 0;
-#endif
-}
-
#endif /* ERL_NIF_DIRTY_SCHEDULER_SUPPORT */
/* Maps */
diff --git a/erts/emulator/beam/erl_nif_api_funcs.h b/erts/emulator/beam/erl_nif_api_funcs.h
index e99cd36153..630cefae93 100644
--- a/erts/emulator/beam/erl_nif_api_funcs.h
+++ b/erts/emulator/beam/erl_nif_api_funcs.h
@@ -169,7 +169,6 @@ ERL_NIF_API_FUNC_DECL(ERL_NIF_TERM,enif_schedule_nif,(ErlNifEnv*,const char*,int
*/
#ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT
ERL_NIF_API_FUNC_DECL(int,enif_is_on_dirty_scheduler,(ErlNifEnv*));
-ERL_NIF_API_FUNC_DECL(int,enif_have_dirty_schedulers,(void));
#endif
#endif /* ERL_NIF_API_FUNC_DECL */
@@ -318,7 +317,6 @@ ERL_NIF_API_FUNC_DECL(int,enif_have_dirty_schedulers,(void));
*/
#ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT
# define enif_is_on_dirty_scheduler ERL_NIF_API_FUNC_MACRO(enif_is_on_dirty_scheduler)
-# define enif_have_dirty_schedulers ERL_NIF_API_FUNC_MACRO(enif_have_dirty_schedulers)
#endif
#endif /* ERL_NIF_API_FUNC_MACRO */
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index ae053fc191..9ae973e108 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -7274,6 +7274,18 @@ driver_system_info(ErlDrvSysInfo *sip, size_t si_size)
sip->nif_major_version = ERL_NIF_MAJOR_VERSION;
sip->nif_minor_version = ERL_NIF_MINOR_VERSION;
}
+ /*
+ * 'dirty_scheduler_support' is the last field in the 4th version
+ * (driver version 3.1, NIF version 2.7)
+ */
+ if (si_size >= ERL_DRV_SYS_INFO_SIZE(dirty_scheduler_support)) {
+#if defined(ERL_NIF_DIRTY_SCHEDULER_SUPPORT) && defined(USE_THREADS)
+ sip->dirty_scheduler_support = 1;
+#else
+ sip->dirty_scheduler_support = 0;
+#endif
+ }
+
}
diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl
index 344bde7c91..336b6188f6 100644
--- a/erts/emulator/test/driver_SUITE.erl
+++ b/erts/emulator/test/driver_SUITE.erl
@@ -1084,7 +1084,15 @@ otp_6602(Config) when is_list(Config) ->
["async_thrs",
"sched_thrs"])).
--define(EXPECTED_SYSTEM_INFO_NAMES, ?EXPECTED_SYSTEM_INFO_NAMES2).
+-define(EXPECTED_SYSTEM_INFO_NAMES3,
+ (?EXPECTED_SYSTEM_INFO_NAMES2 ++
+ ["emu_nif_vsn"])).
+
+-define(EXPECTED_SYSTEM_INFO_NAMES4,
+ (?EXPECTED_SYSTEM_INFO_NAMES3 ++
+ ["dirty_sched"])).
+
+-define(EXPECTED_SYSTEM_INFO_NAMES, ?EXPECTED_SYSTEM_INFO_NAMES4).
'driver_system_info_base_ver'(doc) ->
[];
@@ -1132,16 +1140,18 @@ check_driver_system_info_result(Result) ->
drv_vsn_str2tup(erlang:system_info(driver_version))} of
{DDVSN, DDVSN} ->
?line [] = Ns;
- {{1, 0}, _} ->
+ %% {{1, 0}, _} ->
+ %% ?line ExpNs = lists:sort(?EXPECTED_SYSTEM_INFO_NAMES
+ %% -- ?EXPECTED_SYSTEM_INFO_NAMES1),
+ %% ?line ExpNs = lists:sort(Ns);
+ %% {{1, 1}, _} ->
+ %% ?line ExpNs = lists:sort(?EXPECTED_SYSTEM_INFO_NAMES
+ %% -- ?EXPECTED_SYSTEM_INFO_NAMES2),
+ %% ?line ExpNs = lists:sort(Ns);
+ {{3, 0}, _} ->
?line ExpNs = lists:sort(?EXPECTED_SYSTEM_INFO_NAMES
- -- ?EXPECTED_SYSTEM_INFO_NAMES1),
- ?line ExpNs = lists:sort(Ns);
- {{1, 1}, _} ->
- ?line ExpNs = lists:sort(?EXPECTED_SYSTEM_INFO_NAMES
- -- ?EXPECTED_SYSTEM_INFO_NAMES2),
- ?line ExpNs = lists:sort(Ns);
- {{2, 0}, _} ->
- ?line [] = Ns
+ -- ?EXPECTED_SYSTEM_INFO_NAMES3),
+ ?line ExpNs = lists:sort(Ns)
end.
chk_sis(SIs, Ns) ->
@@ -1188,6 +1198,14 @@ check_si_res(["async_thrs", Value]) ->
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;
+
+%% Data added in 4th version of driver_system_info() (driver version 3.1)
+check_si_res(["dirty_sched", _Value]) ->
+ true;
+
check_si_res(Unexpected) ->
?line ?t:fail({unexpected_result, Unexpected}).
diff --git a/erts/emulator/test/driver_SUITE_data/sys_info_base_drv.c b/erts/emulator/test/driver_SUITE_data/sys_info_base_drv.c
index e44c7dbd5e..964034f5a6 100644
--- a/erts/emulator/test/driver_SUITE_data/sys_info_base_drv.c
+++ b/erts/emulator/test/driver_SUITE_data/sys_info_base_drv.c
@@ -41,7 +41,9 @@
"thread=%s " \
"smp=%s " \
"async_thrs=%d " \
- "sched_thrs=%d"
+ "sched_thrs=%d " \
+ "emu_nif_vsn=%d.%d"
+
static size_t
sys_info_drv_max_res_len(ErlDrvSysInfo *sip)
@@ -55,6 +57,7 @@ sys_info_drv_max_res_len(ErlDrvSysInfo *sip)
slen += 5; /* smp */
slen += 20; /* async_thrs */
slen += 20; /* sched_thrs */
+ slen += 2*20; /* emu_nif_vsn */
return slen;
}
@@ -72,7 +75,9 @@ sys_info_drv_sprintf_sys_info(ErlDrvSysInfo *sip, char *str)
sip->thread_support ? "true" : "false",
sip->smp_support ? "true" : "false",
sip->async_threads,
- sip->scheduler_threads);
+ sip->scheduler_threads,
+ sip->nif_major_version,
+ sip->nif_minor_version);
}
#include "sys_info_drv_impl.c"
diff --git a/erts/emulator/test/driver_SUITE_data/sys_info_curr_drv.c b/erts/emulator/test/driver_SUITE_data/sys_info_curr_drv.c
index 5bbc966932..6d2c47fdaf 100644
--- a/erts/emulator/test/driver_SUITE_data/sys_info_curr_drv.c
+++ b/erts/emulator/test/driver_SUITE_data/sys_info_curr_drv.c
@@ -40,7 +40,9 @@
"thread=%s " \
"smp=%s " \
"async_thrs=%d " \
- "sched_thrs=%d"
+ "sched_thrs=%d " \
+ "emu_nif_vsn=%d.%d " \
+ "dirty_sched=%s"
static size_t
sys_info_drv_max_res_len(ErlDrvSysInfo *sip)
@@ -54,6 +56,8 @@ sys_info_drv_max_res_len(ErlDrvSysInfo *sip)
slen += 5; /* smp */
slen += 20; /* async_thrs */
slen += 20; /* sched_thrs */
+ slen += 2*20; /* emu_nif_vsn */
+ slen += 5; /* dirty_sched */
return slen;
}
@@ -71,7 +75,10 @@ sys_info_drv_sprintf_sys_info(ErlDrvSysInfo *sip, char *str)
sip->thread_support ? "true" : "false",
sip->smp_support ? "true" : "false",
sip->async_threads,
- sip->scheduler_threads);
+ sip->scheduler_threads,
+ sip->nif_major_version,
+ sip->nif_minor_version,
+ sip->dirty_scheduler_support ? "true" : "false");
}
#include "sys_info_drv_impl.c"
diff --git a/erts/emulator/test/driver_SUITE_data/sys_info_prev_drv.c b/erts/emulator/test/driver_SUITE_data/sys_info_prev_drv.c
index 63c69f751c..2271d7027b 100644
--- a/erts/emulator/test/driver_SUITE_data/sys_info_prev_drv.c
+++ b/erts/emulator/test/driver_SUITE_data/sys_info_prev_drv.c
@@ -41,7 +41,9 @@
"thread=%s " \
"smp=%s " \
"async_thrs=%d " \
- "sched_thrs=%d"
+ "sched_thrs=%d " \
+ "emu_nif_vsn=%d.%d"
+
static size_t
sys_info_drv_max_res_len(ErlDrvSysInfo *sip)
@@ -55,6 +57,7 @@ sys_info_drv_max_res_len(ErlDrvSysInfo *sip)
slen += 5; /* smp */
slen += 20; /* async_thrs */
slen += 20; /* sched_thrs */
+ slen += 2*20; /* emu_nif_vsn */
return slen;
}
@@ -72,7 +75,9 @@ sys_info_drv_sprintf_sys_info(ErlDrvSysInfo *sip, char *str)
sip->thread_support ? "true" : "false",
sip->smp_support ? "true" : "false",
sip->async_threads,
- sip->scheduler_threads);
+ sip->scheduler_threads,
+ sip->nif_major_version,
+ sip->nif_minor_version);
}
#include "sys_info_drv_impl.c"
diff --git a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
index ff5fb8c5af..291c903947 100644
--- a/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
+++ b/erts/emulator/test/nif_SUITE_data/nif_SUITE.c
@@ -1539,13 +1539,21 @@ static ERL_NIF_TERM call_nif_schedule(ErlNifEnv* env, int argc, const ERL_NIF_TE
}
#ifdef ERL_NIF_DIRTY_SCHEDULER_SUPPORT
+
+static int have_dirty_schedulers(void)
+{
+ ErlNifSysInfo si;
+ enif_system_info(&si, sizeof(si));
+ return si.dirty_scheduler_support;
+}
+
static ERL_NIF_TERM dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
int n;
char s[10];
ErlNifBinary b;
ERL_NIF_TERM result;
- if (enif_have_dirty_schedulers()) {
+ if (have_dirty_schedulers()) {
assert(enif_is_on_dirty_scheduler(env));
}
assert(argc == 3);
@@ -1566,7 +1574,7 @@ static ERL_NIF_TERM call_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
assert(!enif_is_on_dirty_scheduler(env));
if (argc != 3)
return enif_make_badarg(env);
- if (enif_have_dirty_schedulers()) {
+ if (have_dirty_schedulers()) {
if (enif_get_int(env, argv[0], &n) &&
enif_get_string(env, argv[1], s, sizeof s, ERL_NIF_LATIN1) &&
enif_inspect_binary(env, argv[2], &b))
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 07:45:17 +0000