diff options
Diffstat (limited to 'erts/emulator/sys')
-rw-r--r-- | erts/emulator/sys/common/erl_check_io.c | 701 | ||||
-rw-r--r-- | erts/emulator/sys/common/erl_check_io.h | 45 | ||||
-rw-r--r-- | erts/emulator/sys/common/erl_poll.c | 2 | ||||
-rw-r--r-- | erts/emulator/sys/common/erl_sys_common_misc.c | 8 | ||||
-rw-r--r-- | erts/emulator/sys/ose/beam.lmconf (renamed from erts/emulator/sys/ose/default.lmconf) | 3 | ||||
-rw-r--r-- | erts/emulator/sys/ose/erl_main.c | 2 | ||||
-rw-r--r-- | erts/emulator/sys/ose/erl_poll.c | 8 | ||||
-rw-r--r-- | erts/emulator/sys/ose/sys.c | 353 | ||||
-rw-r--r-- | erts/emulator/sys/unix/erl_child_setup.c | 39 | ||||
-rw-r--r-- | erts/emulator/sys/unix/erl_unix_sys.h | 27 | ||||
-rw-r--r-- | erts/emulator/sys/unix/erl_unix_sys_ddll.c | 4 | ||||
-rw-r--r-- | erts/emulator/sys/unix/sys.c | 77 | ||||
-rw-r--r-- | erts/emulator/sys/win32/erl_poll.c | 2 | ||||
-rw-r--r-- | erts/emulator/sys/win32/erl_win_sys.h | 24 | ||||
-rw-r--r--[-rwxr-xr-x] | erts/emulator/sys/win32/sys.c | 0 |
15 files changed, 1003 insertions, 292 deletions
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c index 245841a768..0051b45b31 100644 --- a/erts/emulator/sys/common/erl_check_io.c +++ b/erts/emulator/sys/common/erl_check_io.c @@ -52,8 +52,17 @@ typedef char EventStateType; #define ERTS_EV_TYPE_STOP_USE ((EventStateType) 3) /* pending stop_select */ typedef char EventStateFlags; -#define ERTS_EV_FLAG_USED ((EventStateFlags) 1) /* ERL_DRV_USE has been turned on */ +#define ERTS_EV_FLAG_USED ((EventStateFlags) 1) /* ERL_DRV_USE has been turned on */ +#define ERTS_EV_FLAG_DEFER_IN_EV ((EventStateFlags) 2) +#define ERTS_EV_FLAG_DEFER_OUT_EV ((EventStateFlags) 4) +#ifdef DEBUG +# define ERTS_ACTIVE_FD_INC 2 +#else +# define ERTS_ACTIVE_FD_INC 128 +#endif + +#define ERTS_CHECK_IO_POLL_RES_LEN 512 #if defined(ERTS_KERNEL_POLL_VERSION) # define ERTS_CIO_EXPORT(FUNC) FUNC ## _kp @@ -67,6 +76,7 @@ typedef char EventStateFlags; (ERTS_POLL_USE_POLL && !ERTS_POLL_USE_KERNEL_POLL) #define ERTS_CIO_POLL_CTL ERTS_POLL_EXPORT(erts_poll_control) +#define ERTS_CIO_POLL_CTLV ERTS_POLL_EXPORT(erts_poll_controlv) #define ERTS_CIO_POLL_WAIT ERTS_POLL_EXPORT(erts_poll_wait) #ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT #define ERTS_CIO_POLL_AS_INTR ERTS_POLL_EXPORT(erts_poll_async_sig_interrupt) @@ -85,6 +95,13 @@ static struct pollset_info { ErtsPollSet ps; erts_smp_atomic_t in_poll_wait; /* set while doing poll */ + struct { + int six; /* start index */ + int eix; /* end index */ + erts_smp_atomic32_t no; + int size; + ErtsSysFdType *array; + } active_fd; #ifdef ERTS_SMP struct removed_fd* removed_list; /* list of deselected fd's*/ erts_smp_spinlock_t removed_list_lock; @@ -97,9 +114,11 @@ typedef struct { SafeHashBucket hb; #endif ErtsSysFdType fd; - union { - ErtsDrvEventDataState *event; /* ERTS_EV_TYPE_DRV_EV */ + struct { ErtsDrvSelectDataState *select; /* ERTS_EV_TYPE_DRV_SEL */ +#if ERTS_CIO_HAVE_DRV_EVENT + ErtsDrvEventDataState *event; /* ERTS_EV_TYPE_DRV_EV */ +#endif erts_driver_t* drv_ptr; /* ERTS_EV_TYPE_STOP_USE */ } driver; ErtsPollEvents events; @@ -169,6 +188,10 @@ static ERTS_INLINE ErtsDrvEventState* hash_new_drv_ev_state(ErtsSysFdType fd) ErtsDrvEventState tmpl; tmpl.fd = fd; tmpl.driver.select = NULL; +#if ERTS_CIO_HAVE_DRV_EVENT + tmpl.driver.event = NULL; +#endif + tmpl.driver.drv_ptr = NULL; tmpl.events = 0; tmpl.remove_cnt = 0; tmpl.type = ERTS_EV_TYPE_NONE; @@ -209,6 +232,69 @@ ERTS_SCHED_PREF_QUICK_ALLOC_IMPL(removed_fd, struct removed_fd, 64, ERTS_ALC_T_F #endif static ERTS_INLINE void +init_iotask(ErtsIoTask *io_task) +{ + erts_port_task_handle_init(&io_task->task); + erts_smp_atomic_init_nob(&io_task->executed_time, ~((erts_aint_t) 0)); +} + +static ERTS_INLINE int +is_iotask_active(ErtsIoTask *io_task, erts_aint_t current_cio_time) +{ + if (erts_port_task_is_scheduled(&io_task->task)) + return 1; + if (erts_smp_atomic_read_nob(&io_task->executed_time) == current_cio_time) + return 1; + return 0; +} + +static ERTS_INLINE ErtsDrvSelectDataState * +alloc_drv_select_data(void) +{ + ErtsDrvSelectDataState *dsp = erts_alloc(ERTS_ALC_T_DRV_SEL_D_STATE, + sizeof(ErtsDrvSelectDataState)); + dsp->inport = NIL; + dsp->outport = NIL; + init_iotask(&dsp->iniotask); + init_iotask(&dsp->outiotask); + return dsp; +} + +static ERTS_INLINE void +free_drv_select_data(ErtsDrvSelectDataState *dsp) +{ + ASSERT(!erts_port_task_is_scheduled(&dsp->iniotask.task)); + ASSERT(!erts_port_task_is_scheduled(&dsp->outiotask.task)); + erts_free(ERTS_ALC_T_DRV_SEL_D_STATE, dsp); +} + +#if ERTS_CIO_HAVE_DRV_EVENT + +static ERTS_INLINE ErtsDrvEventDataState * +alloc_drv_event_data(void) +{ + ErtsDrvEventDataState *dep = erts_alloc(ERTS_ALC_T_DRV_EV_D_STATE, + sizeof(ErtsDrvEventDataState)); + dep->port = NIL; + dep->data = NULL; + dep->removed_events = 0; +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + dep->deferred_events = 0; +#endif + init_iotask(&dep->iotask); + return dep; +} + +static ERTS_INLINE void +free_drv_event_data(ErtsDrvEventDataState *dep) +{ + ASSERT(!erts_port_task_is_scheduled(&dep->iotask.task)); + erts_free(ERTS_ALC_T_DRV_EV_D_STATE, dep); +} + +#endif /* ERTS_CIO_HAVE_DRV_EVENT */ + +static ERTS_INLINE void remember_removed(ErtsDrvEventState *state, struct pollset_info* psi) { #ifdef ERTS_SMP @@ -288,7 +374,7 @@ forget_removed(struct pollset_info* psi) drv_ptr = state->driver.drv_ptr; ASSERT(drv_ptr); state->type = ERTS_EV_TYPE_NONE; - state->flags = 0; + state->flags &= ~ERTS_EV_FLAG_USED; state->driver.drv_ptr = NULL; /* Fall through */ case ERTS_EV_TYPE_NONE: @@ -345,6 +431,10 @@ grow_drv_ev_state(int min_ix) for (i = erts_smp_atomic_read_nob(&drv_ev_state_len); i < new_len; i++) { drv_ev_state[i].fd = (ErtsSysFdType) i; drv_ev_state[i].driver.select = NULL; +#if ERTS_CIO_HAVE_DRV_EVENT + drv_ev_state[i].driver.event = NULL; +#endif + drv_ev_state[i].driver.drv_ptr = NULL; drv_ev_state[i].events = 0; drv_ev_state[i].remove_cnt = 0; drv_ev_state[i].type = ERTS_EV_TYPE_NONE; @@ -365,11 +455,7 @@ grow_drv_ev_state(int min_ix) static ERTS_INLINE void abort_task(Eterm id, ErtsPortTaskHandle *pthp, EventStateType type) { - if (is_nil(id)) { - ASSERT(type == ERTS_EV_TYPE_NONE - || !erts_port_task_is_scheduled(pthp)); - } - else if (erts_port_task_is_scheduled(pthp)) { + if (is_not_nil(id) && erts_port_task_is_scheduled(pthp)) { erts_port_task_abort(pthp); ASSERT(erts_is_port_alive(id)); } @@ -384,7 +470,7 @@ abort_tasks(ErtsDrvEventState *state, int mode) #if ERTS_CIO_HAVE_DRV_EVENT case ERTS_EV_TYPE_DRV_EV: abort_task(state->driver.event->port, - &state->driver.event->task, + &state->driver.event->iotask.task, ERTS_EV_TYPE_DRV_EV); return; #endif @@ -398,14 +484,14 @@ abort_tasks(ErtsDrvEventState *state, int mode) case ERL_DRV_WRITE: ASSERT(state->type == ERTS_EV_TYPE_DRV_SEL); abort_task(state->driver.select->outport, - &state->driver.select->outtask, + &state->driver.select->outiotask.task, state->type); if (mode == ERL_DRV_WRITE) break; case ERL_DRV_READ: ASSERT(state->type == ERTS_EV_TYPE_DRV_SEL); abort_task(state->driver.select->inport, - &state->driver.select->intask, + &state->driver.select->iniotask.task, state->type); break; default: @@ -443,16 +529,14 @@ deselect(ErtsDrvEventState *state, int mode) if (!(state->events)) { switch (state->type) { case ERTS_EV_TYPE_DRV_SEL: - ASSERT(!erts_port_task_is_scheduled(&state->driver.select->intask)); - ASSERT(!erts_port_task_is_scheduled(&state->driver.select->outtask)); - erts_free(ERTS_ALC_T_DRV_SEL_D_STATE, - state->driver.select); + state->driver.select->inport = NIL; + state->driver.select->outport = NIL; break; #if ERTS_CIO_HAVE_DRV_EVENT case ERTS_EV_TYPE_DRV_EV: - ASSERT(!erts_port_task_is_scheduled(&state->driver.event->task)); - erts_free(ERTS_ALC_T_DRV_EV_D_STATE, - state->driver.event); + state->driver.event->port = NIL; + state->driver.event->data = NULL; + state->driver.event->removed_events = (ErtsPollEvents) 0; break; #endif case ERTS_EV_TYPE_NONE: @@ -462,20 +546,297 @@ deselect(ErtsDrvEventState *state, int mode) break; } - state->driver.select = NULL; state->type = ERTS_EV_TYPE_NONE; - state->flags = 0; + state->flags &= ~ERTS_EV_FLAG_USED; remember_removed(state, &pollset); } } - #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS # define IS_FD_UNKNOWN(state) ((state)->type == ERTS_EV_TYPE_NONE && (state)->remove_cnt == 0) #else # define IS_FD_UNKNOWN(state) ((state) == NULL) #endif +static ERTS_INLINE void +check_fd_cleanup(ErtsDrvEventState *state, +#if ERTS_CIO_HAVE_DRV_EVENT + ErtsDrvEventDataState **free_event, +#endif + ErtsDrvSelectDataState **free_select) +{ + erts_aint_t current_cio_time; + + ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(fd_mtx(state->fd))); + + current_cio_time = erts_smp_atomic_read_acqb(&erts_check_io_time); + *free_select = NULL; + if (state->driver.select + && (state->type != ERTS_EV_TYPE_DRV_SEL) + && !is_iotask_active(&state->driver.select->iniotask, current_cio_time) + && !is_iotask_active(&state->driver.select->outiotask, current_cio_time)) { + + *free_select = state->driver.select; + state->driver.select = NULL; + } + +#if ERTS_CIO_HAVE_DRV_EVENT + *free_event = NULL; + if (state->driver.event + && (state->type != ERTS_EV_TYPE_DRV_EV) + && !is_iotask_active(&state->driver.event->iotask, current_cio_time)) { + + *free_event = state->driver.event; + state->driver.event = NULL; + } +#endif + +#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS + if (((state->type != ERTS_EV_TYPE_NONE) + | state->remove_cnt +#if ERTS_CIO_HAVE_DRV_EVENT + | (state->driver.event != NULL) +#endif + | (state->driver.select != NULL)) == 0) { + + hash_erase_drv_ev_state(state); + + } +#endif +} + +static ERTS_INLINE int +check_cleanup_active_fd(ErtsSysFdType fd, +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + ErtsPollControlEntry *pce, + int *pce_ix, +#endif + erts_aint_t current_cio_time) +{ + ErtsDrvEventState *state; + int active = 0; + erts_smp_mtx_t *mtx = fd_mtx(fd); + void *free_select = NULL; +#if ERTS_CIO_HAVE_DRV_EVENT + void *free_event = NULL; +#endif +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + ErtsPollEvents evon = 0, evoff = 0; +#endif + + erts_smp_mtx_lock(mtx); + +#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS + state = &drv_ev_state[(int) fd]; +#else + state = hash_get_drv_ev_state(fd); /* may be NULL! */ + if (state) +#endif + { + if (state->driver.select) { +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + if (is_iotask_active(&state->driver.select->iniotask, current_cio_time)) { + active = 1; + if ((state->events & ERTS_POLL_EV_IN) + && !(state->flags & ERTS_EV_FLAG_DEFER_IN_EV)) { + evoff |= ERTS_POLL_EV_IN; + state->flags |= ERTS_EV_FLAG_DEFER_IN_EV; + } + } + else if (state->flags & ERTS_EV_FLAG_DEFER_IN_EV) { + if (state->events & ERTS_POLL_EV_IN) + evon |= ERTS_POLL_EV_IN; + state->flags &= ~ERTS_EV_FLAG_DEFER_IN_EV; + } + if (is_iotask_active(&state->driver.select->outiotask, current_cio_time)) { + active = 1; + if ((state->events & ERTS_POLL_EV_OUT) + && !(state->flags & ERTS_EV_FLAG_DEFER_OUT_EV)) { + evoff |= ERTS_POLL_EV_OUT; + state->flags |= ERTS_EV_FLAG_DEFER_OUT_EV; + } + } + else if (state->flags & ERTS_EV_FLAG_DEFER_OUT_EV) { + if (state->events & ERTS_POLL_EV_OUT) + evon |= ERTS_POLL_EV_OUT; + state->flags &= ~ERTS_EV_FLAG_DEFER_OUT_EV; + } + if (active) + (void) 0; + else +#else + if (is_iotask_active(&state->driver.select->iniotask, current_cio_time) + || is_iotask_active(&state->driver.select->outiotask, current_cio_time)) + active = 1; + else +#endif + if (state->type != ERTS_EV_TYPE_DRV_SEL) { + free_select = state->driver.select; + state->driver.select = NULL; + } + } + +#if ERTS_CIO_HAVE_DRV_EVENT + if (state->driver.event) { + if (is_iotask_active(&state->driver.event->iotask, current_cio_time)) { +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + ErtsPollEvents evs = state->events & ~state->driver.event->deferred_events; + if (evs) { + evoff |= evs; + state->driver.event->deferred_events |= evs; + } +#endif + active = 1; + } + else if (state->type != ERTS_EV_TYPE_DRV_EV) { + free_event = state->driver.event; + state->driver.event = NULL; + } +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + else { + ErtsPollEvents evs = state->events & state->driver.event->deferred_events; + if (evs) { + evon |= evs; + state->driver.event->deferred_events = 0; + } + } +#endif + + } +#endif + +#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS + if (((state->type != ERTS_EV_TYPE_NONE) | state->remove_cnt | active) == 0) + hash_erase_drv_ev_state(state); +#endif + + } + + erts_smp_mtx_unlock(mtx); + + if (free_select) + free_drv_select_data(free_select); +#if ERTS_CIO_HAVE_DRV_EVENT + if (free_event) + free_drv_event_data(free_event); +#endif + +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + if (evoff) { + ErtsPollControlEntry *pcep = &pce[(*pce_ix)++]; + pcep->fd = fd; + pcep->events = evoff; + pcep->on = 0; + } + if (evon) { + ErtsPollControlEntry *pcep = &pce[(*pce_ix)++]; + pcep->fd = fd; + pcep->events = evon; + pcep->on = 1; + } +#endif + + return active; +} + +static void +check_cleanup_active_fds(erts_aint_t current_cio_time) +{ + int six = pollset.active_fd.six; + int eix = pollset.active_fd.eix; + erts_aint32_t no = erts_smp_atomic32_read_dirty(&pollset.active_fd.no); + int size = pollset.active_fd.size; + int ix = six; +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + /* every fd might add two entries */ + Uint pce_sz = 2*sizeof(ErtsPollControlEntry)*no; + ErtsPollControlEntry *pctrl_entries = (pce_sz + ? erts_alloc(ERTS_ALC_T_TMP, pce_sz) + : NULL); + int pctrl_ix = 0; +#endif + + while (ix != eix) { + ErtsSysFdType fd = pollset.active_fd.array[ix]; + int nix = ix + 1; + if (nix >= size) + nix = 0; + ASSERT(fd != ERTS_SYS_FD_INVALID); + if (!check_cleanup_active_fd(fd, +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + pctrl_entries, + &pctrl_ix, +#endif + current_cio_time)) { + no--; + if (ix == six) { +#ifdef DEBUG + pollset.active_fd.array[ix] = ERTS_SYS_FD_INVALID; +#endif + six = nix; + } + else { + pollset.active_fd.array[ix] = pollset.active_fd.array[six]; +#ifdef DEBUG + pollset.active_fd.array[six] = ERTS_SYS_FD_INVALID; +#endif + six++; + if (six >= size) + six = 0; + } + } + ix = nix; + } + +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + ASSERT(pctrl_ix <= pce_sz/sizeof(ErtsPollControlEntry)); + if (pctrl_ix) + ERTS_CIO_POLL_CTLV(pollset.ps, pctrl_entries, pctrl_ix); + if (pctrl_entries) + erts_free(ERTS_ALC_T_TMP, pctrl_entries); +#endif + + pollset.active_fd.six = six; + pollset.active_fd.eix = eix; + erts_smp_atomic32_set_relb(&pollset.active_fd.no, no); +} + +static ERTS_INLINE void +add_active_fd(ErtsSysFdType fd) +{ + int eix = pollset.active_fd.eix; + int size = pollset.active_fd.size; + + + pollset.active_fd.array[eix] = fd; + + erts_smp_atomic32_set_relb(&pollset.active_fd.no, + (erts_smp_atomic32_read_dirty(&pollset.active_fd.no) + + 1)); + + eix++; + if (eix >= size) + eix = 0; + if (pollset.active_fd.six == eix) { + pollset.active_fd.six = 0; + eix = size; + size += ERTS_ACTIVE_FD_INC; + pollset.active_fd.array = erts_realloc(ERTS_ALC_T_ACTIVE_FD_ARR, + pollset.active_fd.array, + sizeof(ErtsSysFdType)*size); + pollset.active_fd.size = size; +#ifdef DEBUG + { + int i; + for (i = eix + 1; i < size; i++) + pollset.active_fd.array[i] = ERTS_SYS_FD_INVALID; + } +#endif + + } + + pollset.active_fd.eix = eix; +} int ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix, @@ -492,6 +853,10 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix, ErtsDrvEventState *state; int wake_poller; int ret; +#if ERTS_CIO_HAVE_DRV_EVENT + ErtsDrvEventDataState *free_event = NULL; +#endif + ErtsDrvSelectDataState *free_select = NULL; #ifdef USE_VM_PROBES DTRACE_CHARBUF(name, 64); #endif @@ -527,7 +892,8 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix, /* fast track to stop_select callback */ stop_select_fn = prt->drv_ptr->stop_select; #ifdef USE_VM_PROBES - strncpy(name, prt->drv_ptr->name, sizeof(name)-1); + strncpy(name, prt->drv_ptr->name, + sizeof(DTRACE_CHARBUF_NAME(name))-1); name[sizeof(name)-1] = '\0'; #endif ret = 0; @@ -592,9 +958,9 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix, if (new_events & (ERTS_POLL_EV_ERR|ERTS_POLL_EV_NVAL)) { if (state->type == ERTS_EV_TYPE_DRV_SEL && !state->events) { state->type = ERTS_EV_TYPE_NONE; - state->flags = 0; - erts_free(ERTS_ALC_T_DRV_SEL_D_STATE, state->driver.select); - state->driver.select = NULL; + state->flags &= ~ERTS_EV_FLAG_USED; + state->driver.select->inport = NIL; + state->driver.select->outport = NIL; } ret = -1; goto done; @@ -612,18 +978,10 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix, state->events = new_events; if (ctl_events) { if (on) { - if (state->type == ERTS_EV_TYPE_NONE) { - ErtsDrvSelectDataState *dsdsp - = erts_alloc(ERTS_ALC_T_DRV_SEL_D_STATE, - sizeof(ErtsDrvSelectDataState)); - dsdsp->inport = NIL; - dsdsp->outport = NIL; - erts_port_task_handle_init(&dsdsp->intask); - erts_port_task_handle_init(&dsdsp->outtask); - ASSERT(state->driver.select == NULL); - state->driver.select = dsdsp; + if (!state->driver.select) + state->driver.select = alloc_drv_select_data(); + if (state->type == ERTS_EV_TYPE_NONE) state->type = ERTS_EV_TYPE_DRV_SEL; - } ASSERT(state->type == ERTS_EV_TYPE_DRV_SEL); if (ctl_events & ERTS_POLL_EV_IN) state->driver.select->inport = id; @@ -644,17 +1002,12 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix, state->driver.select->outport = NIL; } if (new_events == 0) { - ASSERT(!erts_port_task_is_scheduled(&state->driver.select->intask)); - ASSERT(!erts_port_task_is_scheduled(&state->driver.select->outtask)); if (old_events != 0) { remember_removed(state, &pollset); } if ((mode & ERL_DRV_USE) || !(state->flags & ERTS_EV_FLAG_USED)) { state->type = ERTS_EV_TYPE_NONE; - state->flags = 0; - erts_free(ERTS_ALC_T_DRV_SEL_D_STATE, - state->driver.select); - state->driver.select = NULL; + state->flags &= ~ERTS_EV_FLAG_USED; } /*else keep it, as fd will probably be selected upon again */ } @@ -685,13 +1038,15 @@ ERTS_CIO_EXPORT(driver_select)(ErlDrvPort ix, ret = 0; -done:; -#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS - if (state->type == ERTS_EV_TYPE_NONE && state->remove_cnt == 0) { - hash_erase_drv_ev_state(state); - } +done: + + check_fd_cleanup(state, +#if ERTS_CIO_HAVE_DRV_EVENT + &free_event, #endif -done_unknown: + &free_select); + +done_unknown: erts_smp_mtx_unlock(fd_mtx(fd)); if (stop_select_fn) { int was_unmasked = erts_block_fpe(); @@ -699,6 +1054,12 @@ done_unknown: (*stop_select_fn)(e, NULL); erts_unblock_fpe(was_unmasked); } + if (free_select) + free_drv_select_data(free_select); +#if ERTS_CIO_HAVE_DRV_EVENT + if (free_event) + free_drv_event_data(free_event); +#endif return ret; } @@ -718,6 +1079,10 @@ ERTS_CIO_EXPORT(driver_event)(ErlDrvPort ix, ErtsDrvEventState *state; int do_wake = 0; int ret; +#if ERTS_CIO_HAVE_DRV_EVENT + ErtsDrvEventDataState *free_event; +#endif + ErtsDrvSelectDataState *free_select; Port *prt = erts_drvport2port(ix); if (prt == ERTS_INVALID_ERL_DRV_PORT) @@ -798,10 +1163,8 @@ ERTS_CIO_EXPORT(driver_event)(ErlDrvPort ix, state->driver.event->removed_events |= remove_events; } else { - state->driver.event - = erts_alloc(ERTS_ALC_T_DRV_EV_D_STATE, - sizeof(ErtsDrvEventDataState)); - erts_port_task_handle_init(&state->driver.event->task); + if (!state->driver.event) + state->driver.event = alloc_drv_event_data(); state->driver.event->port = id; state->driver.event->removed_events = (ErtsPollEvents) 0; state->type = ERTS_EV_TYPE_DRV_EV; @@ -811,10 +1174,10 @@ ERTS_CIO_EXPORT(driver_event)(ErlDrvPort ix, else { if (state->type == ERTS_EV_TYPE_DRV_EV) { abort_tasks(state, 0); - erts_free(ERTS_ALC_T_DRV_EV_D_STATE, - state->driver.event); + state->driver.event->port = NIL; + state->driver.event->data = NULL; + state->driver.event->removed_events = (ErtsPollEvents) 0; } - state->driver.select = NULL; state->type = ERTS_EV_TYPE_NONE; remember_removed(state, &pollset); } @@ -824,12 +1187,22 @@ ERTS_CIO_EXPORT(driver_event)(ErlDrvPort ix, ret = 0; done: -#ifndef ERTS_SYS_CONTINOUS_FD_NUMBERS - if (state->type == ERTS_EV_TYPE_NONE && state->remove_cnt == 0) { - hash_erase_drv_ev_state(state); - } + + check_fd_cleanup(state, +#if ERTS_CIO_HAVE_DRV_EVENT + &free_event, #endif + &free_select); + erts_smp_mtx_unlock(fd_mtx(fd)); + + if (free_select) + free_drv_select_data(free_select); +#if ERTS_CIO_HAVE_DRV_EVENT + if (free_event) + free_drv_event_data(free_event); +#endif + return ret; #endif } @@ -1026,7 +1399,7 @@ steal_pending_stop_select(erts_dsprintf_buf_t *dsbufp, ErlDrvPort ix, * In either case stop_select should not be called. */ state->type = ERTS_EV_TYPE_NONE; - state->flags = 0; + state->flags &= ~ERTS_EV_FLAG_USED; if (state->driver.drv_ptr->handle) { erts_ddll_dereference_driver(state->driver.drv_ptr->handle); } @@ -1098,38 +1471,103 @@ event_large_fd_error(ErlDrvPort ix, ErtsSysFdType fd, ErlDrvEventData event_data #endif #endif +static ERTS_INLINE int +io_task_schedule_allowed(ErtsDrvEventState *state, + ErtsPortTaskType type, + erts_aint_t current_cio_time) +{ + ErtsIoTask *io_task; + + switch (type) { + case ERTS_PORT_TASK_INPUT: + if (!state->driver.select) + return 0; +#if ERTS_CIO_HAVE_DRV_EVENT + if (state->driver.event) + return 0; +#endif + io_task = &state->driver.select->iniotask; + break; + case ERTS_PORT_TASK_OUTPUT: + if (!state->driver.select) + return 0; +#if ERTS_CIO_HAVE_DRV_EVENT + if (state->driver.event) + return 0; +#endif + io_task = &state->driver.select->outiotask; + break; +#if ERTS_CIO_HAVE_DRV_EVENT + case ERTS_PORT_TASK_EVENT: + if (!state->driver.event) + return 0; + if (state->driver.select) + return 0; + io_task = &state->driver.event->iotask; + break; +#endif + default: + ERTS_INTERNAL_ERROR("Invalid I/O-task type"); + return 0; + } + + return !is_iotask_active(io_task, current_cio_time); +} + static ERTS_INLINE void -iready(Eterm id, ErtsDrvEventState *state) +iready(Eterm id, ErtsDrvEventState *state, erts_aint_t current_cio_time) { - if (erts_port_task_schedule(id, - &state->driver.select->intask, - ERTS_PORT_TASK_INPUT, - (ErlDrvEvent) state->fd) != 0) { - stale_drv_select(id, state, ERL_DRV_READ); + if (io_task_schedule_allowed(state, + ERTS_PORT_TASK_INPUT, + current_cio_time)) { + ErtsIoTask *iotask = &state->driver.select->iniotask; + erts_smp_atomic_set_nob(&iotask->executed_time, current_cio_time); + if (erts_port_task_schedule(id, + &iotask->task, + ERTS_PORT_TASK_INPUT, + (ErlDrvEvent) state->fd) != 0) { + stale_drv_select(id, state, ERL_DRV_READ); + } + add_active_fd(state->fd); } } static ERTS_INLINE void -oready(Eterm id, ErtsDrvEventState *state) +oready(Eterm id, ErtsDrvEventState *state, erts_aint_t current_cio_time) { - if (erts_port_task_schedule(id, - &state->driver.select->outtask, - ERTS_PORT_TASK_OUTPUT, - (ErlDrvEvent) state->fd) != 0) { - stale_drv_select(id, state, ERL_DRV_WRITE); + if (io_task_schedule_allowed(state, + ERTS_PORT_TASK_OUTPUT, + current_cio_time)) { + ErtsIoTask *iotask = &state->driver.select->outiotask; + erts_smp_atomic_set_nob(&iotask->executed_time, current_cio_time); + if (erts_port_task_schedule(id, + &iotask->task, + ERTS_PORT_TASK_OUTPUT, + (ErlDrvEvent) state->fd) != 0) { + stale_drv_select(id, state, ERL_DRV_WRITE); + } + add_active_fd(state->fd); } } #if ERTS_CIO_HAVE_DRV_EVENT static ERTS_INLINE void -eready(Eterm id, ErtsDrvEventState *state, ErlDrvEventData event_data) +eready(Eterm id, ErtsDrvEventState *state, ErlDrvEventData event_data, + erts_aint_t current_cio_time) { - if (erts_port_task_schedule(id, - &state->driver.event->task, - ERTS_PORT_TASK_EVENT, - (ErlDrvEvent) state->fd, - event_data) != 0) { - stale_drv_select(id, state, 0); + if (io_task_schedule_allowed(state, + ERTS_PORT_TASK_EVENT, + current_cio_time)) { + ErtsIoTask *iotask = &state->driver.event->iotask; + erts_smp_atomic_set_nob(&iotask->executed_time, current_cio_time); + if (erts_port_task_schedule(id, + &iotask->task, + ERTS_PORT_TASK_EVENT, + (ErlDrvEvent) state->fd, + event_data) != 0) { + stale_drv_select(id, state, 0); + } + add_active_fd(state->fd); } } #endif @@ -1160,10 +1598,11 @@ ERTS_CIO_EXPORT(erts_check_io_interrupt_timed)(int set, void ERTS_CIO_EXPORT(erts_check_io)(int do_wait) { - ErtsPollResFd pollres[256]; + ErtsPollResFd *pollres; int pollres_len; SysTimeval wait_time; int poll_ret, i; + erts_aint_t current_cio_time; restart: @@ -1180,10 +1619,24 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) wait_time.tv_usec = 0; } + /* + * No need for an atomic inc op when incrementing + * erts_check_io_time, since only one thread can + * check io at a time. + */ + current_cio_time = erts_smp_atomic_read_dirty(&erts_check_io_time); + current_cio_time++; + erts_smp_atomic_set_relb(&erts_check_io_time, current_cio_time); + + check_cleanup_active_fds(current_cio_time); + #ifdef ERTS_ENABLE_LOCK_CHECK erts_lc_check_exact(NULL, 0); /* No locks should be locked */ #endif - pollres_len = sizeof(pollres)/sizeof(ErtsPollResFd); + + pollres_len = erts_smp_atomic32_read_dirty(&pollset.active_fd.no) + ERTS_CHECK_IO_POLL_RES_LEN; + + pollres = erts_alloc(ERTS_ALC_T_TMP, sizeof(ErtsPollResFd)*pollres_len); erts_smp_atomic_set_nob(&pollset.in_poll_wait, 1); @@ -1203,6 +1656,7 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) if (poll_ret != 0) { erts_smp_atomic_set_nob(&pollset.in_poll_wait, 0); forget_removed(&pollset); + erts_free(ERTS_ALC_T_TMP, pollres); if (poll_ret == EAGAIN) { goto restart; } @@ -1262,15 +1716,15 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) if ((revents & ERTS_POLL_EV_IN) || (!(revents & ERTS_POLL_EV_OUT) && state->events & ERTS_POLL_EV_IN)) { - iready(state->driver.select->inport, state); + iready(state->driver.select->inport, state, current_cio_time); } else if (state->events & ERTS_POLL_EV_OUT) { - oready(state->driver.select->outport, state); + oready(state->driver.select->outport, state, current_cio_time); } } else if (revents & (ERTS_POLL_EV_IN|ERTS_POLL_EV_OUT)) { if (revents & ERTS_POLL_EV_OUT) { - oready(state->driver.select->outport, state); + oready(state->driver.select->outport, state, current_cio_time); } /* Someone might have deselected input since revents was read (true also on the non-smp emulator since @@ -1278,7 +1732,7 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) revents... */ revents &= ~(~state->events & ERTS_POLL_EV_IN); if (revents & ERTS_POLL_EV_IN) { - iready(state->driver.select->inport, state); + iready(state->driver.select->inport, state, current_cio_time); } } else if (revents & ERTS_POLL_EV_NVAL) { @@ -1286,6 +1740,7 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) state->driver.select->inport, state->driver.select->outport, state->events); + add_active_fd(state->fd); } break; } @@ -1303,8 +1758,7 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) if (revents) { event_data->events = state->events; event_data->revents = revents; - - eready(state->driver.event->port, state, event_data); + eready(state->driver.event->port, state, event_data, current_cio_time); } break; } @@ -1322,6 +1776,7 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) (int) state->type); ASSERT(0); deselect(state, 0); + add_active_fd(state->fd); break; } } @@ -1333,6 +1788,7 @@ ERTS_CIO_EXPORT(erts_check_io)(int do_wait) } erts_smp_atomic_set_nob(&pollset.in_poll_wait, 0); + erts_free(ERTS_ALC_T_TMP, pollres); forget_removed(&pollset); } @@ -1468,10 +1924,27 @@ static void drv_ev_state_free(void *des) void ERTS_CIO_EXPORT(erts_init_check_io)(void) { + erts_smp_atomic_init_nob(&erts_check_io_time, 0); erts_smp_atomic_init_nob(&pollset.in_poll_wait, 0); + ERTS_CIO_POLL_INIT(); pollset.ps = ERTS_CIO_NEW_POLLSET(); + pollset.active_fd.six = 0; + pollset.active_fd.eix = 0; + erts_smp_atomic32_init_nob(&pollset.active_fd.no, 0); + pollset.active_fd.size = ERTS_ACTIVE_FD_INC; + pollset.active_fd.array = erts_alloc(ERTS_ALC_T_ACTIVE_FD_ARR, + sizeof(ErtsSysFdType)*ERTS_ACTIVE_FD_INC); +#ifdef DEBUG + { + int i; + for (i = 0; i < ERTS_ACTIVE_FD_INC; i++) + pollset.active_fd.array[i] = ERTS_SYS_FD_INVALID; + } +#endif + + #ifdef ERTS_SMP init_removed_fd_alloc(); pollset.removed_list = NULL; @@ -1547,12 +2020,27 @@ Eterm ERTS_CIO_EXPORT(erts_check_io_info)(void *proc) { Process *p = (Process *) proc; - Eterm tags[15], values[15], res; + Eterm tags[16], values[16], res; Uint sz, *szp, *hp, **hpp, memory_size; Sint i; ErtsPollInfo pi; - - ERTS_CIO_POLL_INFO(pollset.ps, &pi); + erts_aint_t cio_time = erts_smp_atomic_read_acqb(&erts_check_io_time); + int active_fds = (int) erts_smp_atomic32_read_acqb(&pollset.active_fd.no); + + while (1) { + erts_aint_t post_cio_time; + int post_active_fds; + + ERTS_CIO_POLL_INFO(pollset.ps, &pi); + + post_cio_time = erts_smp_atomic_read_mb(&erts_check_io_time); + post_active_fds = (int) erts_smp_atomic32_read_acqb(&pollset.active_fd.no); + if (cio_time == post_cio_time && active_fds == post_active_fds) + break; + cio_time = post_cio_time; + active_fds = post_active_fds; + } + memory_size = pi.memory_size; #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS memory_size += sizeof(ErtsDrvEventState) * erts_smp_atomic_read_nob(&drv_ev_state_len); @@ -1616,6 +2104,9 @@ ERTS_CIO_EXPORT(erts_check_io_info)(void *proc) tags[i] = erts_bld_atom(hpp, szp, "max_fds"); values[i++] = erts_bld_uint(hpp, szp, (Uint) pi.max_fds); + tags[i] = erts_bld_atom(hpp, szp, "active_fds"); + values[i++] = erts_bld_uint(hpp, szp, (Uint) active_fds); + #ifdef ERTS_POLL_COUNT_AVOIDED_WAKEUPS tags[i] = erts_bld_atom(hpp, szp, "no_avoided_wakeups"); values[i++] = erts_bld_uint(hpp, szp, (Uint) pi.no_avoided_wakeups); @@ -1670,6 +2161,8 @@ print_events(ErtsPollEvents ev) typedef struct { int used_fds; int num_errors; + int no_driver_select_structs; + int no_driver_event_structs; #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS int internal_fds; ErtsPollEvents *epep; @@ -1692,6 +2185,13 @@ static void doit_erts_check_io_debug(void *vstate, void *vcounters) struct stat stat_buf; #endif + if (state->driver.select) + counters->no_driver_select_structs++; +#if ERTS_CIO_HAVE_DRV_EVENT + if (state->driver.event) + counters->no_driver_event_structs++; +#endif + #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS if (state->events || ep_events) { if (ep_events & ERTS_POLL_EV_NVAL) { @@ -1830,6 +2330,7 @@ static void doit_erts_check_io_debug(void *vstate, void *vcounters) } } } +#if ERTS_CIO_HAVE_DRV_EVENT else if (state->type == ERTS_EV_TYPE_DRV_EV) { Eterm id; erts_printf("driver_event "); @@ -1865,6 +2366,7 @@ static void doit_erts_check_io_debug(void *vstate, void *vcounters) erts_free_port_names(pnp); } } +#endif #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS else if (internal) { erts_printf("internal "); @@ -1904,7 +2406,7 @@ static void doit_erts_check_io_debug(void *vstate, void *vcounters) } int -ERTS_CIO_EXPORT(erts_check_io_debug)(void) +ERTS_CIO_EXPORT(erts_check_io_debug)(ErtsCheckIoDebugInfo *ciodip) { #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS int fd, len; @@ -1914,6 +2416,10 @@ ERTS_CIO_EXPORT(erts_check_io_debug)(void) ErtsDrvEventState null_des; null_des.driver.select = NULL; +#if ERTS_CIO_HAVE_DRV_EVENT + null_des.driver.event = NULL; +#endif + null_des.driver.drv_ptr = NULL; null_des.events = 0; null_des.remove_cnt = 0; null_des.type = ERTS_EV_TYPE_NONE; @@ -1934,6 +2440,8 @@ ERTS_CIO_EXPORT(erts_check_io_debug)(void) #endif counters.used_fds = 0; counters.num_errors = 0; + counters.no_driver_select_structs = 0; + counters.no_driver_event_structs = 0; #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS len = erts_smp_atomic_read_nob(&drv_ev_state_len); @@ -1950,8 +2458,16 @@ ERTS_CIO_EXPORT(erts_check_io_debug)(void) erts_smp_thr_progress_unblock(); + ciodip->no_used_fds = counters.used_fds; + ciodip->no_driver_select_structs = counters.no_driver_select_structs; + ciodip->no_driver_event_structs = counters.no_driver_event_structs; + erts_printf("\n"); erts_printf("used fds=%d\n", counters.used_fds); + erts_printf("Number of driver_select() structures=%d\n", counters.no_driver_select_structs); +#if ERTS_CIO_HAVE_DRV_EVENT + erts_printf("Number of driver_event() structures=%d\n", counters.no_driver_event_structs); +#endif #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS erts_printf("internal fds=%d\n", counters.internal_fds); #endif @@ -1960,6 +2476,7 @@ ERTS_CIO_EXPORT(erts_check_io_debug)(void) #ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS erts_free(ERTS_ALC_T_TMP, (void *) counters.epep); #endif + return counters.num_errors; } diff --git a/erts/emulator/sys/common/erl_check_io.h b/erts/emulator/sys/common/erl_check_io.h index edab7947ba..d01297d55c 100644 --- a/erts/emulator/sys/common/erl_check_io.h +++ b/erts/emulator/sys/common/erl_check_io.h @@ -26,6 +26,7 @@ #ifndef ERL_CHECK_IO_H__ #define ERL_CHECK_IO_H__ +#include "sys.h" #include "erl_sys_driver.h" #ifdef ERTS_ENABLE_KERNEL_POLL @@ -52,8 +53,8 @@ void erts_check_io_kp(int); void erts_check_io_nkp(int); void erts_init_check_io_kp(void); void erts_init_check_io_nkp(void); -int erts_check_io_debug_kp(void); -int erts_check_io_debug_nkp(void); +int erts_check_io_debug_kp(ErtsCheckIoDebugInfo *); +int erts_check_io_debug_nkp(ErtsCheckIoDebugInfo *); #else /* !ERTS_ENABLE_KERNEL_POLL */ @@ -70,6 +71,27 @@ void erts_init_check_io(void); #endif +extern erts_smp_atomic_t erts_check_io_time; + +typedef struct { + ErtsPortTaskHandle task; + erts_smp_atomic_t executed_time; +} ErtsIoTask; + +ERTS_GLB_INLINE void erts_io_notify_port_task_executed(ErtsPortTaskHandle *pthp); + +#if ERTS_GLB_INLINE_INCL_FUNC_DEF + +ERTS_GLB_INLINE void +erts_io_notify_port_task_executed(ErtsPortTaskHandle *pthp) +{ + ErtsIoTask *itp = (ErtsIoTask *) (((char *) pthp) - offsetof(ErtsIoTask, task)); + erts_aint_t ci_time = erts_smp_atomic_read_acqb(&erts_check_io_time); + erts_smp_atomic_set_relb(&itp->executed_time, ci_time); +} + +#endif + #endif /* ERL_CHECK_IO_H__ */ #if !defined(ERL_CHECK_IO_C__) && !defined(ERTS_ALLOC_C__) @@ -81,6 +103,16 @@ void erts_init_check_io(void); #include "erl_poll.h" #include "erl_port_task.h" +#ifdef __WIN32__ +/* + * Current erts_poll implementation for Windows cannot handle + * active events in the set of events polled. + */ +# define ERTS_CIO_DEFER_ACTIVE_EVENTS 1 +#else +# define ERTS_CIO_DEFER_ACTIVE_EVENTS 0 +#endif + /* * ErtsDrvEventDataState is used by driver_event() which is almost never * used. We allocate ErtsDrvEventDataState separate since we dont wan't @@ -91,13 +123,16 @@ typedef struct { Eterm port; ErlDrvEventData data; ErtsPollEvents removed_events; - ErtsPortTaskHandle task; +#if ERTS_CIO_DEFER_ACTIVE_EVENTS + ErtsPollEvents deferred_events; +#endif + ErtsIoTask iotask; } ErtsDrvEventDataState; typedef struct { Eterm inport; Eterm outport; - ErtsPortTaskHandle intask; - ErtsPortTaskHandle outtask; + ErtsIoTask iniotask; + ErtsIoTask outiotask; } ErtsDrvSelectDataState; #endif /* #ifndef ERL_CHECK_IO_INTERNAL__ */ diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c index 0a58a625b2..aa412a20c8 100644 --- a/erts/emulator/sys/common/erl_poll.c +++ b/erts/emulator/sys/common/erl_poll.c @@ -2157,7 +2157,7 @@ ERTS_POLL_EXPORT(erts_poll_wait)(ErtsPollSet ps, #ifdef ERTS_POLL_DEBUG_PRINT erts_printf("Entering erts_poll_wait(), timeout=%d\n", - (int) tv->tv_sec*1000 + tv->tv_usec/1000); + (int) tvp->tv_sec*1000 + tvp->tv_usec/1000); #endif if (ERTS_POLLSET_SET_POLLED_CHK(ps)) { diff --git a/erts/emulator/sys/common/erl_sys_common_misc.c b/erts/emulator/sys/common/erl_sys_common_misc.c index e3ba741058..e63f0bda54 100644 --- a/erts/emulator/sys/common/erl_sys_common_misc.c +++ b/erts/emulator/sys/common/erl_sys_common_misc.c @@ -44,6 +44,14 @@ #endif #endif +/* + * erts_check_io_time is used by the erl_check_io implementation. The + * global erts_check_io_time variable is declared here since there + * (often) exist two versions of erl_check_io (kernel-poll and + * non-kernel-poll), and we dont want two versions of this variable. + */ +erts_smp_atomic_t erts_check_io_time; + /* Written once and only once */ static int filename_encoding = ERL_FILENAME_UNKNOWN; diff --git a/erts/emulator/sys/ose/default.lmconf b/erts/emulator/sys/ose/beam.lmconf index a66b0ece56..4ad46b01d9 100644 --- a/erts/emulator/sys/ose/default.lmconf +++ b/erts/emulator/sys/ose/beam.lmconf @@ -4,12 +4,13 @@ OSE_LM_POOL_SIZE=0x200000 OSE_LM_MAIN_NAME=main OSE_LM_MAIN_STACK_SIZE=0xF000 OSE_LM_MAIN_PRIORITY=20 +## Has to be of a type that allows MAM OSE_LM_PROGRAM_TYPE=APP_RAM OSE_LM_DATA_INIT=YES OSE_LM_BSS_INIT=YES OSE_LM_EXEC_MODEL=SHARED HEAP_MAX_SIZE=1000000000 -HEAP_SMALL_BUF_INIT_SIZE=64000000 +HEAP_SMALL_BUF_INIT_SIZE=20971520 HEAP_LARGE_BUF_THRESHOLD=16000000 HEAP_LOCK_TYPE=2 diff --git a/erts/emulator/sys/ose/erl_main.c b/erts/emulator/sys/ose/erl_main.c index 03119c3fec..23a9bc93a4 100644 --- a/erts/emulator/sys/ose/erl_main.c +++ b/erts/emulator/sys/ose/erl_main.c @@ -30,6 +30,8 @@ int main(int argc, char **argv) { + (void)stdin;(void)stdout;(void)stderr; + /* When starting using pm_create -c ARGV="-- -root ..", argv[0] is the first part of ARGV and not the name of the executable. So we shuffle some pointers here to make erl_start happy. */ diff --git a/erts/emulator/sys/ose/erl_poll.c b/erts/emulator/sys/ose/erl_poll.c index ca1ed6e53a..7d2a3d1e0b 100644 --- a/erts/emulator/sys/ose/erl_poll.c +++ b/erts/emulator/sys/ose/erl_poll.c @@ -551,7 +551,12 @@ int erts_poll_wait(ErtsPollSet ps, fd.id, fd.signo, current_process()); erts_send_error_to_logger_nogl(dsbufp); timeout = 0; - ASSERT(0); + /* Under normal circumstances the signal is deallocated by the + * driver that issued the select operation. But in this case + * there's no driver waiting for such signal so we have to + * deallocate it here */ + if (sig) + free_buf(&sig); } else { int i; struct erts_sys_fd_type *fd = NULL; @@ -737,6 +742,7 @@ union SIGNAL *erl_drv_ose_get_signal(ErlDrvEvent drv_ev) { ev->msgs = msg->next; ethr_mutex_unlock(&ev->mtx); erts_free(ERTS_ALC_T_FD_SIG_LIST,msg); + restore(sig); return sig; } } diff --git a/erts/emulator/sys/ose/sys.c b/erts/emulator/sys/ose/sys.c index c892cc69c7..5b950a7dae 100644 --- a/erts/emulator/sys/ose/sys.c +++ b/erts/emulator/sys/ose/sys.c @@ -195,7 +195,9 @@ static volatile int children_died; write_buff += sizeof(struct aiocb *); \ memcpy(write_buff,BUFF,SIZE+1); \ SET_AIO(*write_req,FD,SIZE,write_buff); \ - aio_write(write_req); \ + if (aio_write(write_req)) \ + ramlog_printf("%s:%d: write failed with %d\n", \ + __FILE__,__LINE__,errno); \ } \ } while(0) @@ -210,13 +212,13 @@ static volatile int children_died; driver_free(buffer_ptr); \ } while(0) -/* When we have several schedulers, we need to make sure - * that scheduler issuing aio_dispatch() is the owner on the signal */ #define DISPATCH_AIO(sig) do { \ - restore(sig); \ - aio_dispatch(sig); \ + if (aio_dispatch(sig)) \ + ramlog_printf("%s:%d: dispatch failed with %d\n", \ + __FILE__,__LINE__,errno); \ } while(0) +#define AIO_PIPE_SIZE 1024 /* debug print macros */ #define DEBUG_RES 0 @@ -371,6 +373,63 @@ thr_create_prepare_child(void *vtcdp) #endif /* #ifdef USE_THREADS */ +/* The two functions below are stolen from win_con.c + They have to use malloc/free/realloc directly becasue + we want to do able to do erts_printf very early on. + */ +#define VPRINTF_BUF_INC_SIZE 128 +static erts_dsprintf_buf_t * +grow_vprintf_buf(erts_dsprintf_buf_t *dsbufp, size_t need) +{ + char *buf; + size_t size; + + ASSERT(dsbufp); + + if (!dsbufp->str) { + size = (((need + VPRINTF_BUF_INC_SIZE - 1) + / VPRINTF_BUF_INC_SIZE) + * VPRINTF_BUF_INC_SIZE); + buf = (char *) malloc(size * sizeof(char)); + } + else { + size_t free_size = dsbufp->size - dsbufp->str_len; + + if (need <= free_size) + return dsbufp; + + size = need - free_size + VPRINTF_BUF_INC_SIZE; + size = (((size + VPRINTF_BUF_INC_SIZE - 1) + / VPRINTF_BUF_INC_SIZE) + * VPRINTF_BUF_INC_SIZE); + size += dsbufp->size; + buf = (char *) realloc((void *) dsbufp->str, + size * sizeof(char)); + } + if (!buf) + return NULL; + if (buf != dsbufp->str) + dsbufp->str = buf; + dsbufp->size = size; + return dsbufp; +} + +static int erts_sys_ramlog_printf(char *format, va_list arg_list) +{ + int res,i; + erts_dsprintf_buf_t dsbuf = ERTS_DSPRINTF_BUF_INITER(grow_vprintf_buf); + res = erts_vdsprintf(&dsbuf, format, arg_list); + if (res >= 0) { + for (i = 0; i < dsbuf.str_len; i+= 50) + /* We print 50 characters at a time because otherwise + the ramlog looks broken */ + ramlog_printf("%.*s",dsbuf.str_len-50 < 0?dsbuf.str_len:50,dsbuf.str+i); + } + if (dsbuf.str) + free((void *) dsbuf.str); + return res; +} + void erts_sys_pre_init(void) { @@ -409,6 +468,9 @@ erts_sys_pre_init(void) children_died = 0; #endif #endif /* USE_THREADS */ + + erts_printf_stdout_func = erts_sys_ramlog_printf; + erts_smp_atomic_init_nob(&sys_misc_mem_sz, 0); } @@ -650,7 +712,7 @@ static void stop_select(ErlDrvEvent, void*); static PROCESS get_signal_proxy_pid(void) { union SIGNAL *sig; - SIGSELECT any_sig[] = {0}; + SIGSELECT any_sig[] = {1,ERTS_SIGNAL_OSE_DRV_ATTACH}; if (!sig_proxy_pid) { sig = alloc(sizeof(union SIGNAL), ERTS_SIGNAL_OSE_DRV_ATTACH); @@ -685,7 +747,7 @@ resolve_signal(union SIGNAL* sig) { struct erl_drv_entry spawn_driver_entry = { spawn_init, spawn_start, - erl_stop, + NULL, /* erl_stop, */ output, ready_input, ready_output, @@ -784,7 +846,11 @@ set_driver_data(ErlDrvPort port_num, /* READ */ if (read_write & DO_READ) { - efs_examine_fd(ifd, FLIB_FD_HANDLE, &driver_data[ifd].handle, 0); + EfsStatus res = efs_examine_fd(ifd, FLIB_FD_HANDLE, + &driver_data[ifd].handle, 0); + if (res != EFS_SUCCESS) + ramlog_printf("%s:%d: efs_examine_fd(%d) failed with %d\n", + __FILE__,__LINE__,ifd,errno); driver_data[ifd].ifd = ifd; driver_data[ifd].packet_bytes = packet_bytes; driver_data[ifd].port_num = port_num; @@ -792,10 +858,9 @@ set_driver_data(ErlDrvPort port_num, /* async read struct */ memset(&driver_data[ifd].aiocb, 0, sizeof(struct aiocb)); - driver_data[ifd].aiocb.aio_buf = driver_alloc(255); + driver_data[ifd].aiocb.aio_buf = driver_alloc(AIO_PIPE_SIZE); driver_data[ifd].aiocb.aio_fildes = ifd; - driver_data[ifd].aiocb.aio_nbytes = 255; - + driver_data[ifd].aiocb.aio_nbytes = (packet_bytes?packet_bytes:AIO_PIPE_SIZE); driver_data[ifd].alive = 1; driver_data[ifd].status = 0; driver_data[ifd].input_event = @@ -826,7 +891,9 @@ set_driver_data(ErlDrvPort port_num, (void) driver_select(port_num, driver_data[ifd].input_event, (ERL_DRV_READ | ERL_DRV_USE), 1); - aio_read(&driver_data[ifd].aiocb); + if (aio_read(&driver_data[ifd].aiocb)) + ramlog_printf("%s:%d: aio_read(%d) failed with %d\n", + __FILE__,__LINE__,ifd,errno); } else { /* WRITE ONLY */ efs_examine_fd(ofd, FLIB_FD_HANDLE, &driver_data[ofd].handle, 0); @@ -926,7 +993,7 @@ spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* opts) { int ifd[2]; int ofd[2]; - static uint32_t ticker = 0; + static uint32_t ticker = 1; PmStatus pm_status; OSDOMAIN domain = PM_NEW_DOMAIN; PROCESS progpid, mainbid, mainpid; @@ -938,39 +1005,53 @@ spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* opts) int handle_size; char *ptr; - /* handle arguments */ - ptr = strchr(name, ' '); - if (ptr != NULL) { - *ptr ='\0'; - ptr++; - args = ptr; + + args = driver_alloc(strlen(name)+1); + strcpy(args, name); + /* We need to handle name in three parts + * - install handle (must be unique) + * - install binary (needed for ose_pm_install_load_module()) + * - full path (as argument to the spawned applications env.var + */ + + /* full path including arguments */ + args = driver_alloc(strlen(name)+1); + strcpy(args, name); + + /* handle path */ + tmp_handle = strrchr(name, '/'); + if (tmp_handle == NULL) { + tmp_handle = name; } else { - args = NULL; + tmp_handle++; } - /* create an install handle */ - ptr = strrchr(name, '/'); + /* handle args */ + ptr = strchr(tmp_handle, ' '); if (ptr != NULL) { - ptr++; - tmp_handle = ptr; + *ptr = '\0'; + handle_size = ptr - tmp_handle; } else { - tmp_handle = name; + handle_size = strlen(name)+1; } - handle_size = strlen(tmp_handle)+1; - handle_size += (ticker<10)?3:((ticker<100)?4:5); + /* make room for ticker */ + handle_size += (ticker<10)?3:((ticker<100)?4:5); handle = driver_alloc(handle_size); - snprintf(handle, handle_size, "%s_%d", tmp_handle, ticker); - + do { - snprintf(handle, handle_size, "%s_%d", tmp_handle, ticker++); + snprintf(handle, handle_size, "%s_%d", tmp_handle, ticker); pm_status = ose_pm_install_load_module(0, "ELF", name, handle, 0, 0, NULL); - + ticker++; } while (pm_status == PM_EINSTALL_HANDLE_ALREADY_INSTALLED); - DEBUG_CHECK_RES(pm_status, PM_SUCCESS); + + if (pm_status != PM_SUCCESS) { + errno = ENOSYS; /* FIXME add comment */ + return ERL_DRV_ERROR_ERRNO; + } /* Create Program */ pm_status = ose_pm_create_program(&domain, handle, 0, 0, @@ -1143,17 +1224,13 @@ static void erl_stop(ErlDrvData drv_data) if (data->ifd != data->ofd) { /* read and write */ nbio_stop_fd(data->port_num, data->input_event); nbio_stop_fd(data->port_num, data->output_event); - driver_select(data->port_num, data->input_event, ERL_DRV_USE, 0); - driver_select(data->port_num, data->output_event, ERL_DRV_USE, 0); } else { /* write only */ nbio_stop_fd(data->port_num, data->output_event); - driver_select(data->port_num, data->output_event, ERL_DRV_USE, 0); } } else { /* read only */ nbio_stop_fd(data->port_num, data->input_event); - driver_select(data->port_num, data->input_event, ERL_DRV_USE, 0); } close(data->ifd); close(data->ofd); @@ -1177,18 +1254,31 @@ static void output(ErlDrvData drv_data, char* buf, ErlDrvSizeT len) lbp = lb + (4-(data->packet_bytes)); if ((sz = driver_sizeq(data->port_num)) > 0) { - driver_enq(data->port_num, lbp, data->packet_bytes); - driver_enq(data->port_num, buf, len); - if (sz + len + data->packet_bytes >= (1 << 13)) + if (data->packet_bytes != 0) { + driver_enq(data->port_num, lbp, data->packet_bytes); + } + driver_enq(data->port_num, buf, len); + + if (sz + len + data->packet_bytes >= (1 << 13)) set_busy_port(data->port_num, 1); } else { - driver_enq(data->port_num, buf, len); /* n is the skip value */ - + char *pbbuf; + if (data->packet_bytes != 0) { + pbbuf = malloc(len + data->packet_bytes); + int i; + for (i = 0; i < data->packet_bytes; i++) { + *pbbuf++ = *lbp++; + } + strncpy(pbbuf, buf, len); + pbbuf -= data->packet_bytes; + } driver_select(data->port_num, data->output_event, ERL_DRV_WRITE|ERL_DRV_USE, 1); - - WRITE_AIO(data->ofd, len, buf); + WRITE_AIO(data->ofd, + (data->packet_bytes ? len+data->packet_bytes : len), + (data->packet_bytes ? pbbuf : buf)); + if (data->packet_bytes != 0) free(pbbuf); } return; /* 0; */ } @@ -1204,12 +1294,12 @@ static int port_inp_failure(ErlDrvPort port_num, ErlDrvEvent ready_fd, int res) ASSERT(res <= 0); erl_drv_ose_event_fetch(ready_fd,&sig_no, NULL, (void **)&fd); - /* As we need to handle two signals, we do this in two steps */ if (driver_data[*fd].alive) { report_exit_status(driver_data[*fd].report_exit, 0); /* status? */ } else { + driver_select(port_num,ready_fd,DO_READ|DO_WRITE,0); clear_fd_data(*fd); driver_report_exit(driver_data[*fd].port_num, driver_data[*fd].status); /* As we do not really know if the spawn has crashed or exited nicely @@ -1248,6 +1338,10 @@ static void ready_input(ErlDrvData drv_data, ErlDrvEvent ready_fd) } else { res = sig->fm_read_reply.actual; + if (res == 0) { + port_inp_failure(data->port_num, ready_fd, res); + break; + } if (data->packet_bytes == 0) { if (res < 0) { @@ -1258,6 +1352,7 @@ static void ready_input(ErlDrvData drv_data, ErlDrvEvent ready_fd) else if (res == 0) { /* read of 0 bytes, eof, otherside of pipe is assumed dead */ port_inp_failure(data->port_num, ready_fd, res); + break; } else { buf = driver_alloc(res); @@ -1267,100 +1362,91 @@ static void ready_input(ErlDrvData drv_data, ErlDrvEvent ready_fd) driver_output(data->port_num, (char*) buf, res); driver_free(buf); } + /* clear the previous read */ + memset(data->aiocb.aio_buf, 0, res); + + /* issue a new read */ + DISPATCH_AIO(sig); + aio_read(&data->aiocb); } - /* We try to read the remainder */ - else if (fd_data[data->ifd].remain > 0) { - if (res < 0) { - if ((errno != EINTR) && (errno != ERRNO_BLOCK)) { - port_inp_failure(data->port_num, ready_fd, res); + else if (data->packet_bytes && fd_data[data->ifd].remain > 0) { + /* we've read a partial package, or a header */ + + if (res == fd_data[data->ifd].remain) { /* we are done! */ + char *buf = data->aiocb.aio_buf; + int i; + + /* do we have anything buffered? */ + if (fd_data[data->ifd].buf != NULL) { + memcpy(fd_data[data->ifd].buf + fd_data[data->ifd].sz, + buf, res); + buf = fd_data[data->ifd].buf; } - } - else if (res == 0) { - port_inp_failure(data->port_num, ready_fd, res); - } - else if (res == fd_data[data->ifd].remain) { /* we're done */ - driver_output(data->port_num, - fd_data[data->ifd].buf, - fd_data[data->ifd].sz); + + fd_data[data->ifd].sz += res; + driver_output(data->port_num, buf, (fd_data[data->ifd].sz>0?fd_data[data->ifd].sz:res)); clear_fd_data(data->ifd); - } - else { /* if (res < fd_data[fd].remain) */ - fd_data[data->ifd].cpos += res; - fd_data[data->ifd].remain -= res; - } - } - else if (fd_data[data->ifd].remain == 0) { /* clean fd */ - if (res < 0) { - if ((errno != EINTR) && (errno != ERRNO_BLOCK)) { - port_inp_failure(data->port_num, ready_fd, res); + + /* clear the previous read */ + memset(data->aiocb.aio_buf, 0, res); + + /* issue a new read */ + DISPATCH_AIO(sig); + data->aiocb.aio_nbytes = data->packet_bytes; + + if (data->aiocb.aio_buf == NULL) { + port_inp_failure(data->port_num, ready_fd, -1); } + aio_read(&data->aiocb); } - else if (res == 0) { /* eof */ - port_inp_failure(data->port_num, ready_fd, res); - } - else if (res < data->packet_bytes - fd_data[data->ifd].psz) { - memcpy(fd_data[data->ifd].pbuf+fd_data[data->ifd].psz, - (void *)data->aiocb.aio_buf, res); - fd_data[data->ifd].psz += res; - } - else { /* if (res >= packet_bytes) */ - unsigned char* cpos = (unsigned char*)data->aiocb.aio_buf; - int bytes_left = res; - - while (1) { - int psz = fd_data[data->ifd].psz; - char* pbp = fd_data[data->ifd].pbuf + psz; - - while (bytes_left && (psz < data->packet_bytes)) { - *pbp++ = *cpos++; - bytes_left--; - psz++; - } - - if (psz < data->packet_bytes) { - fd_data[data->ifd].psz = psz; - break; - } - fd_data[data->ifd].psz = 0; - - switch (data->packet_bytes) { - case 1: h = get_int8(fd_data[data->ifd].pbuf); break; - case 2: h = get_int16(fd_data[data->ifd].pbuf); break; - case 4: h = get_int32(fd_data[data->ifd].pbuf); break; - default: ASSERT(0); return; /* -1; */ - } - - if (h <= (bytes_left)) { - driver_output(data->port_num, (char*) cpos, h); - cpos += h; - bytes_left -= h; - continue; - } - else { /* The last message we got was split */ - char *buf = erts_alloc_fnf(ERTS_ALC_T_FD_ENTRY_BUF, h); - if (!buf) { - errno = ENOMEM; - port_inp_failure(data->port_num, ready_fd, -1); - } - else { - erts_smp_atomic_add_nob(&sys_misc_mem_sz, h); - sys_memcpy(buf, cpos, bytes_left); - fd_data[data->ifd].buf = buf; - fd_data[data->ifd].sz = h; - fd_data[data->ifd].remain = h - bytes_left; - fd_data[data->ifd].cpos = buf + bytes_left; - } - break; - } + else if(res < fd_data[data->ifd].remain) { /* received part of a package */ + if (fd_data[data->ifd].sz == 0) { + + fd_data[data->ifd].sz += res; + memcpy(fd_data[data->ifd].buf, data->aiocb.aio_buf, res); + fd_data[data->ifd].remain -= res; + } + else { + memcpy(fd_data[data->ifd].buf + fd_data[data->ifd].sz, + data->aiocb.aio_buf, res); + fd_data[data->ifd].sz += res; + fd_data[data->ifd].remain -= res; + } + /* clear the previous read */ + memset(data->aiocb.aio_buf, 0, res); + + /* issue a new read */ + DISPATCH_AIO(sig); + data->aiocb.aio_nbytes = fd_data[data->ifd].remain; + + if (data->aiocb.aio_buf == NULL) { + port_inp_failure(data->port_num, ready_fd, -1); } + aio_read(&data->aiocb); } } + else if (data->packet_bytes && fd_data[data->ifd].remain == 0) { /* we've recieved a header */ + + /* analyze the header FIXME */ + switch (data->packet_bytes) { + case 1: h = get_int8(data->aiocb.aio_buf); break; + case 2: h = get_int16(data->aiocb.aio_buf); break; + case 4: h = get_int32(data->aiocb.aio_buf); break; + } - /* reset the read buffer and init next asynch read */ - DISPATCH_AIO(sig); - memset((void *)data->aiocb.aio_buf, 0, 255); + fd_data[data->ifd].buf = erts_alloc_fnf(ERTS_ALC_T_FD_ENTRY_BUF, h + data->packet_bytes); + fd_data[data->ifd].remain = ((h + data->packet_bytes) - res); - if (res > 0) { + /* clear the previous read */ + memset(data->aiocb.aio_buf, 0, data->packet_bytes); + + /* issue a new read */ + DISPATCH_AIO(sig); + data->aiocb.aio_nbytes = h; + + if (data->aiocb.aio_buf == NULL) { + port_inp_failure(data->port_num, ready_fd, -1); + } aio_read(&data->aiocb); } } @@ -1400,11 +1486,16 @@ static void ready_output(ErlDrvData drv_data, ErlDrvEvent ready_fd) DISPATCH_AIO(sig); FREE_AIO(sig->fm_write_reply.buffer); res = driver_deq(data->port_num, iov[0].iov_len); - if (res > 0) { + if (res > 0) { iov = driver_peekq(data->port_num, &vlen); WRITE_AIO(data->ofd, iov[0].iov_len, iov[0].iov_base); } } + else if (vlen == 0) { + DISPATCH_AIO(sig); + FREE_AIO(sig->fm_write_reply.buffer); + } + } sig = erl_drv_ose_get_signal(ready_fd); } @@ -1650,10 +1741,10 @@ erl_assert_error(const char* expr, const char* func, { fflush(stdout); fprintf(stderr, "%s:%d:%s() Assertion failed: %s\n", - file, func, line, expr); + file, line, func, expr); fflush(stderr); ramlog_printf("%s:%d:%s() Assertion failed: %s\n", - file, func, line, expr); + file, line, func, expr); abort(); } diff --git a/erts/emulator/sys/unix/erl_child_setup.c b/erts/emulator/sys/unix/erl_child_setup.c index 7c6e4a2f37..5ad92dad02 100644 --- a/erts/emulator/sys/unix/erl_child_setup.c +++ b/erts/emulator/sys/unix/erl_child_setup.c @@ -54,6 +54,17 @@ void sys_sigrelease(int sig) #endif /* !SIG_SIGNAL */ #endif /* !SIG_SIGSET */ +#if defined(__ANDROID__) +int __system_properties_fd(void); +#endif /* __ANDROID__ */ + +#if defined(__ANDROID__) +#define SHELL "/system/bin/sh" +#else +#define SHELL "/bin/sh" +#endif /* __ANDROID__ */ + + int main(int argc, char *argv[]) { @@ -89,8 +100,18 @@ main(int argc, char *argv[]) if (sscanf(argv[CS_ARGV_FD_CR_IX], "%d:%d", &from, &to) != 2) return 1; + +#if defined(HAVE_CLOSEFROM) + closefrom(from); +#elif defined(__ANDROID__) + for (i = from; i <= to; i++) { + if (i!=__system_properties_fd) + (void) close(i); + } +#else for (i = from; i <= to; i++) (void) close(i); +#endif if (!(argv[CS_ARGV_WD_IX][0] == '.' && argv[CS_ARGV_WD_IX][1] == '\0') && chdir(argv[CS_ARGV_WD_IX]) < 0) @@ -116,7 +137,23 @@ main(int argc, char *argv[]) execv(argv[CS_ARGV_NO_OF_ARGS],&(argv[CS_ARGV_NO_OF_ARGS + 1])); } } else { - execl("/bin/sh", "sh", "-c", argv[CS_ARGV_CMD_IX], (char *) NULL); + execl(SHELL, "sh", "-c", argv[CS_ARGV_CMD_IX], (char *) NULL); } return 1; } + +#if defined(__ANDROID__) +int __system_properties_fd(void) +{ + int s, fd; + char *env; + + env = getenv("ANDROID_PROPERTY_WORKSPACE"); + if (!env) { + return -1; + } + fd = atoi(env); + return fd; +} +#endif /* __ANDROID__ */ + diff --git a/erts/emulator/sys/unix/erl_unix_sys.h b/erts/emulator/sys/unix/erl_unix_sys.h index 176fc049a7..26ed2fb558 100644 --- a/erts/emulator/sys/unix/erl_unix_sys.h +++ b/erts/emulator/sys/unix/erl_unix_sys.h @@ -135,9 +135,6 @@ /* File descriptors are numbers anc consecutively allocated on Unix */ #define ERTS_SYS_CONTINOUS_FD_NUMBERS -#define HAVE_ERTS_CHECK_IO_DEBUG -int erts_check_io_debug(void); - #ifndef ERTS_SMP # undef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT # define ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT @@ -230,8 +227,24 @@ extern void sys_stop_cat(void); */ #ifdef USE_ISINF_ISNAN /* simulate finite() */ -# define finite(f) (!isinf(f) && !isnan(f)) -# define HAVE_FINITE +# define isfinite(f) (!isinf(f) && !isnan(f)) +# define HAVE_ISFINITE +#elif (defined(__GNUC__) && !defined(__llvm__)) && defined(HAVE_FINITE) +/* We use finite in gcc as it emits assembler instead of + the function call that isfinite emits. The assembler is + significantly faster. */ +# ifdef isfinite +# undef isfinite +# endif +# define isfinite finite +# ifndef HAVE_ISFINITE +# define HAVE_ISFINITE +# endif +#elif defined(isfinite) && !defined(HAVE_ISFINITE) +# define HAVE_ISFINITE +#elif !defined(HAVE_ISFINITE) && defined(HAVE_FINITE) +# define isfinite finite +# define HAVE_ISFINITE #endif #ifdef NO_FPE_SIGNALS @@ -241,7 +254,7 @@ extern void sys_stop_cat(void); #define erts_thread_init_fp_exception() do{}while(0) #endif # define __ERTS_FP_CHECK_INIT(fpexnp) do {} while (0) -# define __ERTS_FP_ERROR(fpexnp, f, Action) if (!finite(f)) { Action; } else {} +# define __ERTS_FP_ERROR(fpexnp, f, Action) if (!isfinite(f)) { Action; } else {} # define __ERTS_FP_ERROR_THOROUGH(fpexnp, f, Action) __ERTS_FP_ERROR(fpexnp, f, Action) # define __ERTS_SAVE_FP_EXCEPTION(fpexnp) # define __ERTS_RESTORE_FP_EXCEPTION(fpexnp) @@ -305,7 +318,7 @@ static __inline__ void __ERTS_FP_CHECK_INIT(volatile unsigned long *fp_exception code to always throw floating-point exceptions on errors. */ static __inline__ int erts_check_fpe_thorough(volatile unsigned long *fp_exception, double f) { - return erts_check_fpe(fp_exception, f) || !finite(f); + return erts_check_fpe(fp_exception, f) || !isfinite(f); } # define __ERTS_FP_ERROR_THOROUGH(fpexnp, f, Action) \ do { if (erts_check_fpe_thorough((fpexnp),(f))) { Action; } } while (0) diff --git a/erts/emulator/sys/unix/erl_unix_sys_ddll.c b/erts/emulator/sys/unix/erl_unix_sys_ddll.c index 8760b58839..2659d623c7 100644 --- a/erts/emulator/sys/unix/erl_unix_sys_ddll.c +++ b/erts/emulator/sys/unix/erl_unix_sys_ddll.c @@ -123,6 +123,7 @@ int erts_sys_ddll_open(const char *full_name, void **handle, ErtsSysDdllError* e int erts_sys_ddll_open_noext(char *dlname, void **handle, ErtsSysDdllError* err) { +#if defined(HAVE_DLOPEN) int ret = ERL_DE_NO_ERROR; char *str; dlerror(); @@ -148,6 +149,9 @@ int erts_sys_ddll_open_noext(char *dlname, void **handle, ErtsSysDdllError* err) ret = ERL_DE_DYNAMIC_ERROR_OFFSET - find_errcode(str, err); } return ret; +#else + return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY; +#endif } /* diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c index 865cb50a56..cd87b320e2 100644 --- a/erts/emulator/sys/unix/sys.c +++ b/erts/emulator/sys/unix/sys.c @@ -149,6 +149,13 @@ extern void erl_crash_dump(char* file, int line, char* fmt, ...); #define DIR_SEPARATOR_CHAR '/' +#if defined(__ANDROID__) +#define SHELL "/system/bin/sh" +#else +#define SHELL "/bin/sh" +#endif /* __ANDROID__ */ + + #if defined(DEBUG) #define ERL_BUILD_TYPE_MARKER ".debug" #elif defined(PURIFY) @@ -195,8 +202,6 @@ static erts_smp_atomic_t sys_misc_mem_sz; #if defined(ERTS_SMP) static void smp_sig_notify(char c); static int sig_notify_fds[2] = {-1, -1}; -#elif defined(USE_THREADS) -static int async_fd[2]; #endif #if CHLDWTHR || defined(ERTS_SMP) @@ -239,6 +244,8 @@ static void note_child_death(int, int); static void* child_waiter(void *); #endif +static int crashdump_companion_cube_fd = -1; + /********************* General functions ****************************/ /* This is used by both the drivers and general I/O, must be set early */ @@ -277,7 +284,7 @@ struct { void (*check_io)(int); Uint (*size)(void); Eterm (*info)(void *); - int (*check_io_debug)(void); + int (*check_io_debug)(ErtsCheckIoDebugInfo *); } io_func = {0}; @@ -299,9 +306,9 @@ Eterm erts_check_io_info(void *p) } int -erts_check_io_debug(void) +erts_check_io_debug(ErtsCheckIoDebugInfo *ip) { - return (*io_func.check_io_debug)(); + return (*io_func.check_io_debug)(ip); } @@ -568,6 +575,14 @@ erts_sys_pre_init(void) close(fd); } + /* We need a file descriptor to close in the crashdump creation. + * We close this one to be sure we can get a fd for our real file ... + * so, we create one here ... a stone to carry all the way home. + */ + + crashdump_companion_cube_fd = open("/dev/null", O_RDONLY); + + /* don't lose it, there will be cake */ } void @@ -712,14 +727,13 @@ static ERTS_INLINE int prepare_crash_dump(int secs) { #define NUFBUF (3) - int i, max; + int i; char env[21]; /* enough to hold any 64-bit integer */ size_t envsz; DeclareTmpHeapNoproc(heap,NUFBUF); Port *heart_port; Eterm *hp = heap; Eterm list = NIL; - int heart_fd[2] = {-1,-1}; int has_heart = 0; UseTmpHeapNoproc(NUFBUF); @@ -742,43 +756,22 @@ prepare_crash_dump(int secs) alarm((unsigned int)secs); } - if (heart_port) { - /* hearts input fd - * We "know" drv_data is the in_fd since the port is started with read|write - */ - heart_fd[0] = (int)heart_port->drv_data; - heart_fd[1] = (int)driver_data[heart_fd[0]].ofd; - has_heart = 1; + /* close all viable sockets via emergency close callbacks. + * Specifically we want to close epmd sockets. + */ - list = CONS(hp, make_small(8), list); hp += 2; + erts_emergency_close_ports(); + if (heart_port) { + has_heart = 1; + list = CONS(hp, make_small(8), list); hp += 2; /* send to heart port, CMD = 8, i.e. prepare crash dump =o */ erts_port_output(NULL, ERTS_PORT_SIG_FLG_FORCE_IMM_CALL, heart_port, heart_port->common.id, list, NULL); } - /* Make sure we unregister at epmd (unknown fd) and get at least - one free filedescriptor (for erl_crash.dump) */ - - max = max_files; - if (max < 1024) - max = 1024; - for (i = 3; i < max; i++) { -#if defined(ERTS_SMP) - /* We don't want to close the signal notification pipe... */ - if (i == sig_notify_fds[0] || i == sig_notify_fds[1]) - continue; -#elif defined(USE_THREADS) - /* We don't want to close the async notification pipe... */ - if (i == async_fd[0] || i == async_fd[1]) - continue; -#endif - /* We don't want to close our heart yet ... */ - if (i == heart_fd[0] || i == heart_fd[1]) - continue; - - close(i); - } + /* Make sure we have a fd for our crashdump file. */ + close(crashdump_companion_cube_fd); envsz = sizeof(env); i = erts_sys_getenv__("ERL_CRASH_DUMP_NICE", env, &envsz); @@ -1567,9 +1560,13 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op goto child_error; } +#if defined(HAVE_CLOSEFROM) + closefrom(opts->use_stdio ? 3 : 5); +#else for (i = opts->use_stdio ? 3 : 5; i < max_files; i++) (void) close(i); - +#endif + if (opts->wd && chdir(opts->wd) < 0) goto child_error; @@ -1596,7 +1593,7 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op } } } else { - execle("/bin/sh", "sh", "-c", cmd_line, (char *) NULL, new_environ); + execle(SHELL, "sh", "-c", cmd_line, (char *) NULL, new_environ); } child_error: _exit(1); @@ -1717,7 +1714,7 @@ static ErlDrvData spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* op fcntl(i, F_SETFD, 1); qnx_spawn_options.flags = _SPAWN_SETSID; - if ((pid = spawnl(P_NOWAIT, "/bin/sh", "/bin/sh", "-c", cmd_line, + if ((pid = spawnl(P_NOWAIT, SHELL, SHELL, "-c", cmd_line, (char *) 0)) < 0) { erts_free(ERTS_ALC_T_TMP, (void *) cmd_line); reset_qnx_spawn(); diff --git a/erts/emulator/sys/win32/erl_poll.c b/erts/emulator/sys/win32/erl_poll.c index 7a1d129cd5..972170d465 100644 --- a/erts/emulator/sys/win32/erl_poll.c +++ b/erts/emulator/sys/win32/erl_poll.c @@ -1085,7 +1085,7 @@ void erts_poll_controlv(ErtsPollSet ps, pcev[i].events, pcev[i].on); } - ERTS_POLLSET_LOCK(ps); + ERTS_POLLSET_UNLOCK(ps); HARDTRACEF(("Out erts_poll_controlv")); } diff --git a/erts/emulator/sys/win32/erl_win_sys.h b/erts/emulator/sys/win32/erl_win_sys.h index 8015e8f378..838f0c61eb 100644 --- a/erts/emulator/sys/win32/erl_win_sys.h +++ b/erts/emulator/sys/win32/erl_win_sys.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1997-2012. All Rights Reserved. + * Copyright Ericsson AB 1997-2014. 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 @@ -60,16 +60,18 @@ #include <windows.h> #undef WIN32_LEAN_AND_MEAN -/* - * Define MAXPATHLEN in terms of MAXPATH if available. - */ - -#ifndef MAXPATH -#define MAXPATH MAX_PATH -#endif /* MAXPATH */ #ifndef MAXPATHLEN -#define MAXPATHLEN MAXPATH +#define MAXPATHLEN 4096 +/* + erts-6.0 (OTP 17.0): + We now accept windows paths longer than 260 (MAX_PATH) by conversion to + UNC path format. In order to also return long paths from the driver we + increased MAXPATHLEN from 260 to larger (but arbitrary) value 4096. + It would of course be nicer to instead dynamically allocate large enough + tmp buffers when efile_drv needs to return really long paths, and do that + for unix as well. + */ #endif /* MAXPATHLEN */ /* @@ -111,12 +113,10 @@ /* * Our own type of "FD's" */ +#define ERTS_SYS_FD_INVALID INVALID_HANDLE_VALUE #define ERTS_SYS_FD_TYPE HANDLE #define NO_FSTAT_ON_SYS_FD_TYPE 1 /* They are events, not files */ -#define HAVE_ERTS_CHECK_IO_DEBUG -int erts_check_io_debug(void); - /* * For erl_time_sup */ diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c index 0ded6b274e..0ded6b274e 100755..100644 --- a/erts/emulator/sys/win32/sys.c +++ b/erts/emulator/sys/win32/sys.c |