From fc0477a67641b9ba344de595b7fec2431208f8e6 Mon Sep 17 00:00:00 2001 From: Rickard Green Date: Tue, 24 Jan 2017 19:50:25 +0100 Subject: Atomic reference count of binaries also in non-SMP NIF resources was not handled in a thread-safe manner in the runtime system without SMP support. As a consequence of this fix, the following driver functions are now thread-safe also in the runtime system without SMP support: - driver_free_binary() - driver_realloc_binary() - driver_binary_get_refc() - driver_binary_inc_refc() - driver_binary_dec_refc() --- erts/emulator/beam/dist.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'erts/emulator/beam/dist.c') diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index d79245e0e6..52b2174609 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -2081,7 +2081,7 @@ erts_dist_command(Port *prt, int reds_limit) ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt)); - erts_refc_inc(&dep->refc, 1); /* Otherwise dist_entry might be + erts_smp_refc_inc(&dep->refc, 1); /* Otherwise dist_entry might be removed if port command fails */ erts_smp_atomic_set_mb(&dep->dist_cmd_scheduled, 0); @@ -2514,7 +2514,7 @@ info_dist_entry(fmtfn_t to, void *arg, DistEntry *dep, int visible, int connecte erts_print(to, arg, "Name: %T", dep->sysname); #ifdef DEBUG - erts_print(to, arg, " (refc=%d)", erts_refc_read(&dep->refc, 0)); + erts_print(to, arg, " (refc=%d)", erts_smp_refc_read(&dep->refc, 0)); #endif erts_print(to, arg, "\n"); if (!connected && is_nil(dep->cid)) { -- cgit v1.2.3