aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam/erl_port_task.c
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator/beam/erl_port_task.c')
-rw-r--r--erts/emulator/beam/erl_port_task.c98
1 files changed, 75 insertions, 23 deletions
diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c
index 2aa0a27197..3102e44c11 100644
--- a/erts/emulator/beam/erl_port_task.c
+++ b/erts/emulator/beam/erl_port_task.c
@@ -1,18 +1,19 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2006-2013. All Rights Reserved.
+ * Copyright Ericsson AB 2006-2016. All Rights Reserved.
*
- * The contents of this file are subject to the Erlang Public License,
- * Version 1.1, (the "License"); you may not use this file except in
- * compliance with the License. You should have received a copy of the
- * Erlang Public License along with this software. If not, it can be
- * retrieved online at http://www.erlang.org/.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
*
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*
* %CopyrightEnd%
*/
@@ -34,6 +35,7 @@
#include "dist.h"
#include "erl_check_io.h"
#include "dtrace-wrapper.h"
+#include "lttng-wrapper.h"
#include <stdarg.h>
/*
@@ -68,6 +70,18 @@ static void chk_task_queues(Port *pp, ErtsPortTask *execq, int processing_busy_q
#else
#define DTRACE_DRIVER(PROBE_NAME, PP) do {} while(0)
#endif
+#ifdef USE_LTTNG_VM_TRACEPOINTS
+#define LTTNG_DRIVER(TRACEPOINT, PP) \
+ if (LTTNG_ENABLED(TRACEPOINT)) { \
+ lttng_decl_portbuf(port_str); \
+ lttng_decl_procbuf(proc_str); \
+ lttng_pid_to_str(ERTS_PORT_GET_CONNECTED(PP), proc_str); \
+ lttng_port_to_str((PP), port_str); \
+ LTTNG3(TRACEPOINT, proc_str, port_str, (PP)->name); \
+ }
+#else
+#define LTTNG_DRIVER(TRACEPOINT, PP) do {} while(0)
+#endif
#define ERTS_SMP_LC_VERIFY_RQ(RQ, PP) \
do { \
@@ -179,10 +193,9 @@ p2p_sig_data_to_task(ErtsProc2PortSigData *sigdp)
return ptp;
}
-ErtsProc2PortSigData *
-erts_port_task_alloc_p2p_sig_data(void)
+static ERTS_INLINE ErtsProc2PortSigData *
+p2p_sig_data_init(ErtsPortTask *ptp)
{
- ErtsPortTask *ptp = port_task_alloc();
ptp->type = ERTS_PORT_TASK_PROC_SIG;
ptp->u.alive.flags = ERTS_PT_FLG_SIG_DEP;
@@ -193,6 +206,31 @@ erts_port_task_alloc_p2p_sig_data(void)
return &ptp->u.alive.td.psig.data;
}
+ErtsProc2PortSigData *
+erts_port_task_alloc_p2p_sig_data(void)
+{
+ ErtsPortTask *ptp = port_task_alloc();
+
+ return p2p_sig_data_init(ptp);
+}
+
+ErtsProc2PortSigData *
+erts_port_task_alloc_p2p_sig_data_extra(size_t extra, void **extra_ptr)
+{
+ ErtsPortTask *ptp = erts_alloc(ERTS_ALC_T_PORT_TASK,
+ sizeof(ErtsPortTask) + extra);
+
+ *extra_ptr = ptp+1;
+
+ return p2p_sig_data_init(ptp);
+}
+
+void
+erts_port_task_free_p2p_sig_data(ErtsProc2PortSigData *sigdp)
+{
+ schedule_port_task_free(p2p_sig_data_to_task(sigdp));
+}
+
static ERTS_INLINE Eterm
task_caller(ErtsPortTask *ptp)
{
@@ -1646,6 +1684,8 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
erts_aint32_t state;
int active;
Uint64 start_time = 0;
+ ErtsSchedulerData *esdp = runq->scheduler;
+ ERTS_MSACC_PUSH_STATE_M();
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
@@ -1662,7 +1702,6 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
*curr_port_pp = pp;
if (erts_sched_stat.enabled) {
- ErtsSchedulerData *esdp = erts_get_scheduler_data();
Uint old = ERTS_PORT_SCHED_ID(pp, esdp->no);
int migrated = old && old != esdp->no;
@@ -1689,6 +1728,7 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
state = erts_atomic32_read_nob(&pp->state);
pp->reds = ERTS_PORT_REDS_EXECUTE;
+ ERTS_MSACC_SET_STATE_CACHED_M(ERTS_MSACC_STATE_PORT);
goto begin_handle_tasks;
while (1) {
@@ -1718,17 +1758,26 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
switch (ptp->type) {
case ERTS_PORT_TASK_TIMEOUT:
reset_handle(ptp);
- reds = ERTS_PORT_REDS_TIMEOUT;
- if (!(state & ERTS_PORT_SFLGS_DEAD)) {
- DTRACE_DRIVER(driver_timeout, pp);
- (*pp->drv_ptr->timeout)((ErlDrvData) pp->drv_data);
- }
+ if (!ERTS_PTMR_IS_TIMED_OUT(pp))
+ reds = 0;
+ else {
+ ERTS_PTMR_CLEAR(pp);
+ reds = ERTS_PORT_REDS_TIMEOUT;
+ if (!(state & ERTS_PORT_SFLGS_DEAD)) {
+ DTRACE_DRIVER(driver_timeout, pp);
+ LTTNG_DRIVER(driver_timeout, pp);
+ if (IS_TRACED_FL(pp, F_TRACE_RECEIVE))
+ trace_port(pp, am_receive, am_timeout);
+ (*pp->drv_ptr->timeout)((ErlDrvData) pp->drv_data);
+ }
+ }
break;
case ERTS_PORT_TASK_INPUT:
reds = ERTS_PORT_REDS_INPUT;
ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0);
DTRACE_DRIVER(driver_ready_input, pp);
- /* NOTE some windows/ose drivers use ->ready_input
+ LTTNG_DRIVER(driver_ready_input, pp);
+ /* NOTE some windows drivers use ->ready_input
for input and output */
(*pp->drv_ptr->ready_input)((ErlDrvData) pp->drv_data,
ptp->u.alive.td.io.event);
@@ -1739,6 +1788,7 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
reds = ERTS_PORT_REDS_OUTPUT;
ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0);
DTRACE_DRIVER(driver_ready_output, pp);
+ LTTNG_DRIVER(driver_ready_output, pp);
(*pp->drv_ptr->ready_output)((ErlDrvData) pp->drv_data,
ptp->u.alive.td.io.event);
reset_executed_io_task_handle(ptp);
@@ -1748,6 +1798,7 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
reds = ERTS_PORT_REDS_EVENT;
ASSERT((state & ERTS_PORT_SFLGS_DEAD) == 0);
DTRACE_DRIVER(driver_event, pp);
+ LTTNG_DRIVER(driver_event, pp);
(*pp->drv_ptr->event)((ErlDrvData) pp->drv_data,
ptp->u.alive.td.io.event,
ptp->u.alive.td.io.event_data);
@@ -1778,7 +1829,7 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
reds = erts_dist_command(pp, CONTEXT_REDS - pp->reds);
break;
default:
- erl_exit(ERTS_ABORT_EXIT,
+ erts_exit(ERTS_ABORT_EXIT,
"Invalid port task type: %d\n",
(int) ptp->type);
break;
@@ -1816,6 +1867,7 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
}
erts_unblock_fpe(fpe_was_unmasked);
+ ERTS_MSACC_POP_STATE_M();
if (io_tasks_executed) {
@@ -1879,7 +1931,7 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
runq->scheduler->reductions += reds;
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- ERTS_PORT_REDUCTIONS_EXECUTED(runq, reds);
+ ERTS_PORT_REDUCTIONS_EXECUTED(esdp, runq, reds);
return res;
}
@@ -2042,7 +2094,7 @@ begin_port_cleanup(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p)
break;
}
default:
- erl_exit(ERTS_ABORT_EXIT,
+ erts_exit(ERTS_ABORT_EXIT,
"Invalid port task type: %d\n",
(int) ptp->type);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-12 02:35:13 +0000