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-rw-r--r--erts/configure.in20
-rw-r--r--erts/doc/src/epmd.xml41
-rw-r--r--erts/emulator/beam/big.c6
-rw-r--r--erts/emulator/beam/erl_lock_check.c17
-rw-r--r--erts/emulator/beam/erl_lock_count.c12
-rw-r--r--erts/emulator/beam/erl_port_task.c9
-rw-r--r--erts/emulator/beam/erl_process.c6
-rw-r--r--erts/emulator/beam/io.c2
-rw-r--r--erts/emulator/beam/utils.c3
-rw-r--r--erts/emulator/test/Makefile1
-rw-r--r--erts/emulator/test/async_ports_SUITE.erl118
-rw-r--r--erts/emulator/test/async_ports_SUITE_data/Makefile.src15
-rw-r--r--erts/emulator/test/async_ports_SUITE_data/cport.c81
-rw-r--r--erts/emulator/test/driver_SUITE.erl3
14 files changed, 295 insertions, 39 deletions
diff --git a/erts/configure.in b/erts/configure.in
index f66110b98b..40b335849c 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -4821,6 +4821,26 @@ if test "x$GCC" = xyes; then
fi
dnl ----------------------------------------------------------------------
+dnl Enable -fsanitize= flags.
+dnl ----------------------------------------------------------------------
+
+m4_define(DEFAULT_SANITIZERS, [address,undefined])
+AC_ARG_ENABLE(
+ sanitizers,
+ AS_HELP_STRING(
+ [--enable-sanitizers@<:@=comma-separated list of sanitizers@:>@],
+ [Default=DEFAULT_SANITIZERS]),
+[
+case "$enableval" in
+ no) sanitizers= ;;
+ yes) sanitizers="-fsanitize=DEFAULT_SANITIZERS" ;;
+ *) sanitizers="-fsanitize=$enableval" ;;
+esac
+CFLAGS="$CFLAGS $sanitizers"
+LDFLAGS="$LDFLAGS $sanitizers"
+])
+
+dnl ----------------------------------------------------------------------
dnl Output the result.
dnl ----------------------------------------------------------------------
diff --git a/erts/doc/src/epmd.xml b/erts/doc/src/epmd.xml
index 963d35c3c8..25f819ab50 100644
--- a/erts/doc/src/epmd.xml
+++ b/erts/doc/src/epmd.xml
@@ -58,12 +58,12 @@
of the IP address and a port number. The name of the node is
an atom on the form of <c><![CDATA[Name@Node]]></c>.
The job of the <c><![CDATA[epmd]]></c> daemon is to keep track of which
- node name listens on which address. Hence, <c><![CDATA[epmd]]></c> map
+ node name listens on which address. Hence, <c><![CDATA[epmd]]></c> maps
symbolic node names to machine addresses.</p>
<p>The TCP/IP <c>epmd</c> daemon actually only keeps track of
- the <c>Name</c> (first) part of an Erlang node name, the <c>Host</c>
- part (whatever is after the <c><![CDATA[@]]></c> is implicit in the
+ the <c>Name</c> (first) part of an Erlang node name. The <c>Host</c>
+ part (whatever is after the <c><![CDATA[@]]></c>) is implicit in the
node name where the <c>epmd</c> daemon was actually contacted,
as is the IP address where the Erlang node can be
reached. Consistent and correct TCP naming services are
@@ -77,12 +77,12 @@
<p>The daemon is started automatically by the <c>erl</c>
command if the node is to be distributed and there is no
running instance present. If automatically launched,
- environment variables has to be used to alter the behavior of
+ environment variables have to be used to alter the behavior of
the daemon. See the <seealso
marker="#environment_variables">Environment
variables</seealso> section below.</p>
- <p>If the -daemon argument is not given, the
+ <p>If the -daemon argument is not given,
<c><![CDATA[epmd]]></c> runs as a normal program with the
controlling terminal of the shell in which it is
started. Normally, it should run as a daemon.</p>
@@ -122,7 +122,7 @@
comma-separated list of IP addresses and on the loopback address
(which is implicitly added to the list if it has not been
specified). This can also be set using the
- <c><![CDATA[ERL_EPMD_ADDRESS]]></c> environment variable, see the
+ <c><![CDATA[ERL_EPMD_ADDRESS]]></c> environment variable. See the
section <seealso marker="#environment_variables">Environment
variables</seealso> below.</p>
</item>
@@ -130,7 +130,7 @@
<item>
<p>Let this instance of epmd listen to another TCP port than
default 4369. This can also be set using the
- <c><![CDATA[ERL_EPMD_PORT]]></c> environment variable, see the
+ <c><![CDATA[ERL_EPMD_PORT]]></c> environment variable. See the
section <seealso marker="#environment_variables">Environment
variables</seealso> below</p>
</item>
@@ -153,7 +153,7 @@
<p>With relaxed command checking, the <c>epmd</c> daemon can be killed from the localhost with i.e. <c>epmd -kill</c> even if there are active nodes registered. Normally only daemons with an empty node database can be killed with the <c>epmd -kill</c> command.</p>
</item>
<item>
- <p>The <c>epmd -stop</c> command (and the corresponding messages to epmd, as can be given using <c>erl_interface/ei</c>) is normally always ignored, as it opens up for strange situation when two nodes of the same name can be alive at the same time. A node unregisters itself by just closing the connection to epmd, why the <c>stop</c> command was only intended for use in debugging situations.</p>
+ <p>The <c>epmd -stop</c> command (and the corresponding messages to epmd, as can be given using <c>erl_interface/ei</c>) is normally always ignored, as it opens up the possibility of a strange situation where two nodes of the same name can be alive at the same time. A node unregisters itself by just closing the connection to epmd, which is why the <c>stop</c> command was only intended for use in debugging situations.</p>
<p>With relaxed command checking enabled, you can forcibly unregister live nodes.</p>
</item>
</list>
@@ -166,7 +166,7 @@
<section>
<marker id="debug_flags"></marker>
<title>DbgExtra options</title>
- <p>These options are purely for debugging and testing epmd clients, they should not be used in normal operation.</p>
+ <p>These options are purely for debugging and testing epmd clients. They should not be used in normal operation.</p>
<taglist>
<tag><c><![CDATA[-packet_timeout Seconds]]></c></tag>
@@ -177,9 +177,9 @@
</item>
<tag><c><![CDATA[-delay_accept Seconds]]></c></tag>
<item>
- <p>To simulate a busy server you can insert a delay between epmd
- gets notified about that a new connection is requested and
- when the connections gets accepted.</p>
+ <p>To simulate a busy server you can insert a delay between when epmd
+ gets notified that a new connection is requested and
+ when the connection gets accepted.</p>
</item>
<tag><c><![CDATA[-delay_write Seconds]]></c></tag>
<item>
@@ -191,15 +191,15 @@
<section>
<marker id="interactive_flags"></marker>
<title>Interactive options</title>
- <p>These options make <c>epmd</c> run as an interactive command displaying the results of sending queries ta an already running instance of <c>epmd</c>. The epmd contacted is always on the local node, but the <c>-port</c> option can be used to select between instances if several are running using different port on the host.</p>
+ <p>These options make <c>epmd</c> run as an interactive command, displaying the results of sending queries to an already running instance of <c>epmd</c>. The epmd contacted is always on the local node, but the <c>-port</c> option can be used to select between instances if several are running using different ports on the host.</p>
<taglist>
<tag><c><![CDATA[-port No]]></c></tag>
<item>
<p>Contacts the <c>epmd</c> listening on the given TCP port number
(default 4369). This can also be set using the
- <c><![CDATA[ERL_EPMD_PORT]]></c> environment variable, see the
+ <c><![CDATA[ERL_EPMD_PORT]]></c> environment variable. See the
section <seealso marker="#environment_variables">Environment
- variables</seealso> below</p>
+ variables</seealso> below.</p>
</item>
<tag><c><![CDATA[-names]]></c></tag>
<item>
@@ -210,7 +210,7 @@
<p>Kill the currently running <c>epmd</c>.</p>
<p>Killing the running <c>epmd</c> is only allowed if <c>epmd
- -names</c> show an empty database or
+ -names</c> shows an empty database or
<c>-relaxed_command_check</c> was given when the running
instance of <c>epmd</c> was started. Note that
<c>-relaxed_command_check</c> is given when starting the
@@ -228,7 +228,7 @@
<p>This command can only be used when contacting <c>epmd</c>
instances started with the <c>-relaxed_command_check</c>
flag. Note that relaxed command checking has to be enabled for
- the <c>epmd</c> daemon contacted, When running epmd
+ the <c>epmd</c> daemon contacted. When running epmd
interactively,
<c>-relaxed_command_check</c> has no effect.</p>
</item>
@@ -259,7 +259,7 @@
<item>
<p>If set prior to start, the <c>epmd</c> daemon will behave
as if the <c>-relaxed_command_check</c> option was given at
- start-up. If consequently setting this option before starting
+ start-up. Consequently, if this option is set before starting
the Erlang virtual machine, the automatically started
<c>epmd</c> will accept the <c>-kill</c> and <c>-stop</c>
commands without restrictions.</p>
@@ -287,8 +287,8 @@
remote hosts. However, only the query commands are answered (and
acted upon) if the query comes from a remote host. It is always an
error to try to register a nodename if the client is not a process
- located on the same host as the <c>epmd</c> instance is running on,
- why such requests are considered hostile and the connection is
+ located on the same host as the <c>epmd</c> instance is running on-
+ such requests are considered hostile and the connection is
immediately closed.</p>
<p>The queries accepted from remote nodes are:</p>
@@ -307,3 +307,4 @@
</comref>
+
diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c
index 520034d68a..e62caa6b22 100644
--- a/erts/emulator/beam/big.c
+++ b/erts/emulator/beam/big.c
@@ -1509,13 +1509,15 @@ Eterm uword_to_big(UWord x, Eterm *y)
*/
Eterm small_to_big(Sint x, Eterm *y)
{
+ Uint xu;
if (x >= 0) {
+ xu = x;
*y = make_pos_bignum_header(1);
} else {
- x = -x;
+ xu = -(Uint)x;
*y = make_neg_bignum_header(1);
}
- BIG_DIGIT(y, 0) = x;
+ BIG_DIGIT(y, 0) = xu;
return make_big(y);
}
diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c
index c13eb87012..c665aa51a2 100644
--- a/erts/emulator/beam/erl_lock_check.c
+++ b/erts/emulator/beam/erl_lock_check.c
@@ -227,8 +227,7 @@ rw_op_str(Uint16 flags)
case ERTS_LC_FLG_LO_READ:
return " (r)";
case ERTS_LC_FLG_LO_WRITE:
- erts_fprintf(stderr, "\nInternal error\n");
- lc_abort();
+ ERTS_INTERNAL_ERROR("Only write flag present");
default:
break;
}
@@ -311,8 +310,7 @@ static ERTS_INLINE void lc_free(void *p)
static void *lc_core_alloc(void)
{
lc_unlock();
- erts_fprintf(stderr, "Lock checker out of memory!\n");
- lc_abort();
+ ERTS_INTERNAL_ERROR("Lock checker out of memory!\n");
}
#else
@@ -325,8 +323,7 @@ static void *lc_core_alloc(void)
fbs = (erts_lc_free_block_t *) malloc(sizeof(erts_lc_free_block_t)
* ERTS_LC_FB_CHUNK_SIZE);
if (!fbs) {
- erts_fprintf(stderr, "Lock checker failed to allocate memory!\n");
- lc_abort();
+ ERTS_INTERNAL_ERROR("Lock checker failed to allocate memory!");
}
for (i = 1; i < ERTS_LC_FB_CHUNK_SIZE - 1; i++) {
#ifdef DEBUG
@@ -366,11 +363,11 @@ create_locked_locks(char *thread_name)
{
erts_lc_locked_locks_t *l_lcks = malloc(sizeof(erts_lc_locked_locks_t));
if (!l_lcks)
- lc_abort();
+ ERTS_INTERNAL_ERROR("Lock checker failed to allocate memory!");
l_lcks->thread_name = strdup(thread_name ? thread_name : "unknown");
if (!l_lcks->thread_name)
- lc_abort();
+ ERTS_INTERNAL_ERROR("Lock checker failed to allocate memory!");
l_lcks->emu_thread = 0;
l_lcks->tid = erts_thr_self();
@@ -691,7 +688,7 @@ erts_lc_set_thread_name(char *thread_name)
free((void *) l_lcks->thread_name);
l_lcks->thread_name = strdup(thread_name ? thread_name : "unknown");
if (!l_lcks->thread_name)
- lc_abort();
+ ERTS_INTERNAL_ERROR("strdup failed");
}
l_lcks->emu_thread = 1;
}
@@ -1330,7 +1327,7 @@ erts_lc_init(void)
#endif /* #ifdef ERTS_LC_STATIC_ALLOC */
if (ethr_spinlock_init(&free_blocks_lock) != 0)
- lc_abort();
+ ERTS_INTERNAL_ERROR("spinlock_init failed");
erts_tsd_key_create(&locks_key,"erts_lock_check_key");
}
diff --git a/erts/emulator/beam/erl_lock_count.c b/erts/emulator/beam/erl_lock_count.c
index 17ddfdc8ae..cf6996ea06 100644
--- a/erts/emulator/beam/erl_lock_count.c
+++ b/erts/emulator/beam/erl_lock_count.c
@@ -151,6 +151,9 @@ static erts_lcnt_thread_data_t *lcnt_thread_data_alloc(void) {
erts_lcnt_thread_data_t *eltd;
eltd = (erts_lcnt_thread_data_t*)malloc(sizeof(erts_lcnt_thread_data_t));
+ if (!eltd) {
+ ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!");
+ }
eltd->timer_set = 0;
eltd->lock_in_conflict = 0;
@@ -272,6 +275,9 @@ void erts_lcnt_init() {
/* init lcnt structure */
erts_lcnt_data = (erts_lcnt_data_t*)malloc(sizeof(erts_lcnt_data_t));
+ if (!erts_lcnt_data) {
+ ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!");
+ }
erts_lcnt_data->current_locks = erts_lcnt_list_init();
erts_lcnt_data->deleted_locks = erts_lcnt_list_init();
@@ -293,6 +299,9 @@ erts_lcnt_lock_list_t *erts_lcnt_list_init(void) {
erts_lcnt_lock_list_t *list;
list = (erts_lcnt_lock_list_t*)malloc(sizeof(erts_lcnt_lock_list_t));
+ if (!list) {
+ ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!");
+ }
list->head = NULL;
list->tail = NULL;
list->n = 0;
@@ -399,6 +408,9 @@ void erts_lcnt_destroy_lock(erts_lcnt_lock_t *lock) {
/* copy structure and insert the copy */
deleted_lock = (erts_lcnt_lock_t*)malloc(sizeof(erts_lcnt_lock_t));
+ if (!deleted_lock) {
+ ERTS_INTERNAL_ERROR("Lock counter failed to allocate memory!");
+ }
memcpy(deleted_lock, lock, sizeof(erts_lcnt_lock_t));
deleted_lock->next = NULL;
diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c
index 31d9a1e26e..2fc95ed5d8 100644
--- a/erts/emulator/beam/erl_port_task.c
+++ b/erts/emulator/beam/erl_port_task.c
@@ -798,12 +798,13 @@ schedule_port_task_handle_list_free(ErtsPortTaskHandleList *pthlp)
static ERTS_INLINE void
abort_nosuspend_task(Port *pp,
ErtsPortTaskType type,
- ErtsPortTaskTypeData *tdp)
+ ErtsPortTaskTypeData *tdp,
+ int bpq_data)
{
ASSERT(type == ERTS_PORT_TASK_PROC_SIG);
- if (!pp->sched.taskq.bpq)
+ if (!bpq_data)
tdp->psig.callback(NULL,
ERTS_PORT_SFLG_INVALID,
ERTS_PROC2PORT_SIG_ABORT_NOSUSPEND,
@@ -1345,7 +1346,7 @@ erts_port_task_abort_nosuspend_tasks(Port *pp)
#endif
schedule_port_task_handle_list_free(pthlp);
- abort_nosuspend_task(pp, type, &td);
+ abort_nosuspend_task(pp, type, &td, pp->sched.taskq.bpq != NULL);
}
}
@@ -1525,7 +1526,7 @@ abort_nosuspend:
erts_port_dec_refc(pp);
#endif
- abort_nosuspend_task(pp, ptp->type, &ptp->u.alive.td);
+ abort_nosuspend_task(pp, ptp->type, &ptp->u.alive.td, 0);
ASSERT(ns_pthlp);
erts_free(ERTS_ALC_T_PT_HNDL_LIST, ns_pthlp);
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index b73f9b7f92..1606ad119d 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -2211,6 +2211,9 @@ aux_work_timeout_early_init(int no_schedulers)
p = (UWord) malloc((sizeof(ErtsAuxWorkTmo)
+ sizeof(erts_atomic32_t)*(no_schedulers+1))
+ ERTS_CACHE_LINE_SIZE-1);
+ if (!p) {
+ ERTS_INTERNAL_ERROR("malloc failed to allocate memory!");
+ }
if (p & ERTS_CACHE_LINE_MASK)
p = (p & ~ERTS_CACHE_LINE_MASK) + ERTS_CACHE_LINE_SIZE;
ASSERT((p & ERTS_CACHE_LINE_MASK) == 0);
@@ -7818,6 +7821,9 @@ erts_start_schedulers(void)
#ifdef ETHR_HAVE_THREAD_NAMES
opts.name = malloc(80);
+ if (!opts.name) {
+ ERTS_INTERNAL_ERROR("malloc failed to allocate memory!");
+ }
#endif
#ifdef ERTS_SMP
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index d028737664..0f86d8e41d 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -7166,7 +7166,7 @@ char *driver_dl_error(void)
#define ERL_DRV_SYS_INFO_SIZE(LAST_FIELD) \
- (((size_t) &((ErlDrvSysInfo *) 0)->LAST_FIELD) \
+ (offsetof(ErlDrvSysInfo, LAST_FIELD) \
+ sizeof(((ErlDrvSysInfo *) 0)->LAST_FIELD))
void
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index 72092ec7b0..55f9e68e78 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -3948,6 +3948,9 @@ erts_save_emu_args(int argc, char **argv)
size += sz+1;
}
ptr = (char *) malloc(size);
+ if (!ptr) {
+ ERTS_INTERNAL_ERROR("malloc failed to allocate memory!");
+ }
#ifdef DEBUG
end_ptr = ptr + size;
#endif
diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile
index 0b0568c31a..dfbe47786a 100644
--- a/erts/emulator/test/Makefile
+++ b/erts/emulator/test/Makefile
@@ -31,6 +31,7 @@ MODULES= \
a_SUITE \
after_SUITE \
alloc_SUITE \
+ async_ports_SUITE \
beam_SUITE \
beam_literals_SUITE \
bif_SUITE \
diff --git a/erts/emulator/test/async_ports_SUITE.erl b/erts/emulator/test/async_ports_SUITE.erl
new file mode 100644
index 0000000000..c89b3655ff
--- /dev/null
+++ b/erts/emulator/test/async_ports_SUITE.erl
@@ -0,0 +1,118 @@
+-module(async_ports_SUITE).
+
+-include_lib("common_test/include/ct.hrl").
+
+-compile(export_all).
+
+-define(PACKET_SIZE, (10 * 1024 * 8)).
+-define(CPORT_DELAY, 100).
+-define(TEST_LOOPS_COUNT, 100000).
+-define(SLEEP_BEFORE_CHECK, 1000).
+-define(TEST_PROCS_COUNT, 2).
+-define(TC_TIMETRAP_SECONDS, 10).
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+ [
+ permanent_busy_test
+ ].
+
+permanent_busy_test(Config) ->
+ ct:timetrap({seconds, ?TC_TIMETRAP_SECONDS}),
+ ExePath = filename:join(?config(data_dir, Config), "cport"),
+
+ Self = self(),
+ spawn_link(
+ fun() ->
+ Block = <<0:?PACKET_SIZE>>,
+
+ Port = open_port(ExePath),
+
+ Testers =
+ lists:map(
+ fun(_) ->
+ erlang:spawn_link(?MODULE, run_loop,
+ [Self,
+ Port,
+ Block,
+ ?TEST_LOOPS_COUNT,
+ 0])
+ end,
+ lists:seq(1, ?TEST_PROCS_COUNT)),
+ Self ! {test_info, Port, Testers},
+ endless_flush(Port)
+ end),
+
+ receive
+ {test_info, Port, Testers} ->
+ MaxWaitTime = round(0.7 * ?TC_TIMETRAP_SECONDS * 1000),
+ ct:log("wait testers, maximum ~w mcsec~n", [MaxWaitTime]),
+ ok = wait_testers(MaxWaitTime, Testers),
+ timer:sleep(?SLEEP_BEFORE_CHECK),
+ case erlang:port_command(Port, <<"test">>, [nosuspend]) of
+ false ->
+ exit(port_dead);
+ true ->
+ ok
+ end
+ end.
+
+wait_testers(Timeout, Testers) ->
+ lists:foldl(
+ fun(Pid, AccIn) ->
+ StartWait = os:timestamp(),
+ receive
+ {Pid, port_dead} ->
+ recalc_timeout(AccIn, StartWait)
+ after AccIn ->
+ Pid ! stop,
+ recalc_timeout(AccIn, StartWait)
+ end
+ end, Timeout, Testers),
+ ok.
+
+recalc_timeout(TimeoutIn, WaitStart) ->
+ erlang:max(0, TimeoutIn - round(timer:now_diff(os:timestamp(), WaitStart)) div 1000).
+
+open_port(ExePath) ->
+ erlang:open_port({spawn, ExePath ++ " 100"}, [{packet, 4}, eof, exit_status, use_stdio, binary]).
+
+run_loop(RootProc, Port, Block, CheckLimit, BusyCnt) ->
+ receive
+ stop ->
+ ok
+ after 0 ->
+ case erlang:port_command(Port, Block, [nosuspend]) of
+ true ->
+ run_loop(RootProc, Port, Block, CheckLimit, 0);
+ false ->
+ if
+ BusyCnt + 1 > CheckLimit ->
+ check_dead(RootProc, Port, Block, CheckLimit);
+ true ->
+ run_loop(RootProc, Port, Block, CheckLimit, BusyCnt + 1)
+ end
+ end
+ end.
+
+check_dead(RootProc, Port, Block, CheckLimit) ->
+ ct:log("~p: check port dead~n", [self()]),
+ timer:sleep(?SLEEP_BEFORE_CHECK),
+ case erlang:port_command(Port, Block, [nosuspend]) of
+ true ->
+ ct:log("not dead~n"),
+ run_loop(RootProc, Port, Block, CheckLimit, 0);
+ false ->
+ ct:log("port dead: ~p~n", [Port]),
+ RootProc ! {self(), port_dead},
+ ok
+ end.
+
+endless_flush(Port) ->
+ receive
+ {Port, {data, _}} ->
+ endless_flush(Port);
+ {Port, SomethingWrong} ->
+ erlang:error({someting_wrong, SomethingWrong})
+ end.
diff --git a/erts/emulator/test/async_ports_SUITE_data/Makefile.src b/erts/emulator/test/async_ports_SUITE_data/Makefile.src
new file mode 100644
index 0000000000..56da3fbe12
--- /dev/null
+++ b/erts/emulator/test/async_ports_SUITE_data/Makefile.src
@@ -0,0 +1,15 @@
+CC = @CC@
+LD = @LD@
+CFLAGS = @CFLAGS@ @DEFS@
+CROSSLDFLAGS = @CROSSLDFLAGS@
+
+PROGS = cport@exe@
+
+
+all: $(PROGS)
+
+cport@exe@: cport@obj@
+ $(LD) $(CROSSLDFLAGS) -o cport cport@obj@ @LIBS@
+
+cport@obj@: cport.c
+ $(CC) -c -o cport@obj@ $(CFLAGS) cport.c
diff --git a/erts/emulator/test/async_ports_SUITE_data/cport.c b/erts/emulator/test/async_ports_SUITE_data/cport.c
new file mode 100644
index 0000000000..033aff382a
--- /dev/null
+++ b/erts/emulator/test/async_ports_SUITE_data/cport.c
@@ -0,0 +1,81 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#ifdef __WIN32__
+# include "windows.h"
+# include "winbase.h"
+#else
+# include <unistd.h>
+#endif
+
+typedef unsigned char byte;
+
+int read_cmd(byte *buf)
+{
+ int len;
+ if (read_exact(buf, 4) != 4)
+ return(-1);
+
+ len = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
+ return read_exact(buf, len);
+}
+
+int write_cmd(byte *buf, int len)
+{
+ byte li[4];
+ li[0] = (len >> 24) & 0xff;
+ li[1] = (len >> 16) & 0xff;
+ li[2] = (len >> 8) & 0xff;
+ li[3] = len & 0xff;
+ write_exact(&li, 4);
+
+ return write_exact(buf, len);
+}
+
+int read_exact(byte *buf, int len)
+{
+ int i, got=0;
+ do {
+ if ((i = read(0, buf+got, len-got)) <= 0)
+ {
+ return(i);
+ }
+ got += i;
+ } while (got<len);
+ return len;
+}
+
+int write_exact(byte *buf, int len)
+{
+ int i, wrote = 0;
+ do {
+ if ((i = write(1, buf+wrote, len-wrote)) < 0)
+ return (i);
+ wrote += i;
+ } while (wrote<len);
+ return len;
+}
+
+byte static_buf[31457280]; // 30 mb
+
+int main(int argc, char **argv) {
+ int sleep_time = atoi(argv[1]);
+ int fn, arg, res;
+ byte *buf = &static_buf[0];
+ int len = 0;
+ if (sleep_time <= 0)
+ sleep_time = 0;
+#ifdef __WIN32__
+ else
+ sleep_time = ((sleep_time - 1) / 1000) + 1; /* Milli seconds */
+#endif
+ while ((len = read_cmd(buf)) > 0) {
+#ifdef __WIN32__
+ Sleep((DWORD) sleep_time);
+#else
+ usleep(sleep_time);
+#endif
+ write_cmd(buf, len);
+ }
+}
diff --git a/erts/emulator/test/driver_SUITE.erl b/erts/emulator/test/driver_SUITE.erl
index c62bc0c454..344bde7c91 100644
--- a/erts/emulator/test/driver_SUITE.erl
+++ b/erts/emulator/test/driver_SUITE.erl
@@ -1062,10 +1062,9 @@ otp_6602(Config) when is_list(Config) ->
%% Inet driver use port locking...
{ok, S} = gen_udp:open(0),
{ok, Fd} = inet:getfd(S),
- {ok, Port} = inet:port(S),
%% Steal fd (lock checker used to
%% trigger here).
- {ok, _S2} = gen_udp:open(Port,[{fd,Fd}]),
+ {ok, _S2} = gen_udp:open(0,[{fd,Fd}]),
Parent ! Done
end),
?line receive Done -> ok end,
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-26 01:56:24 +0000