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authorRickard Green <[email protected]>2016-05-11 17:16:07 +0200
committerRickard Green <[email protected]>2016-05-11 17:16:07 +0200
commit8b544b523d915d1a54d505ec34182676f183a5e0 (patch)
tree92ccb9a32a8fed32a19fabda8cbbb85887bca93d /erts/emulator/beam/erl_port.h
parente1ad5319f0b76460d9147ef04640c469f5a180d6 (diff)
parent4aea719054a594a06aceb34afca0ea3df65ead77 (diff)
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Merge branch 'rickard/ds-proc-exit/OTP-13123'
* rickard/ds-proc-exit/OTP-13123: Add dirty_heap_access test case Add dirty_call_while_terminated test case Move dirty nif test cases into dirty_nif_SUITE Add better support for communication with a process executing dirty NIF Remove conditional dirty schedulers API
Diffstat (limited to 'erts/emulator/beam/erl_port.h')
-rw-r--r--erts/emulator/beam/erl_port.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_port.h b/erts/emulator/beam/erl_port.h
index c2588e718d..f0075ca2b9 100644
--- a/erts/emulator/beam/erl_port.h
+++ b/erts/emulator/beam/erl_port.h
@@ -487,6 +487,7 @@ ERTS_GLB_INLINE Port*erts_id2port(Eterm id);
ERTS_GLB_INLINE Port *erts_id2port_sflgs(Eterm, Process *, ErtsProcLocks, Uint32);
ERTS_GLB_INLINE void erts_port_release(Port *);
#ifdef ERTS_SMP
+ERTS_GLB_INLINE Port *erts_thr_port_lookup(Eterm id, Uint32 invalid_sflgs);
ERTS_GLB_INLINE Port *erts_thr_id2port_sflgs(Eterm id, Uint32 invalid_sflgs);
ERTS_GLB_INLINE void erts_thr_port_release(Port *prt);
#endif
@@ -626,6 +627,44 @@ erts_port_release(Port *prt)
}
#ifdef ERTS_SMP
+/*
+ * erts_thr_id2port_sflgs() and erts_port_dec_refc(prt) can
+ * be used by unmanaged threads in the SMP case.
+ */
+ERTS_GLB_INLINE Port *
+erts_thr_port_lookup(Eterm id, Uint32 invalid_sflgs)
+{
+ Port *prt;
+ ErtsThrPrgrDelayHandle dhndl;
+
+ if (is_not_internal_port(id))
+ return NULL;
+
+ dhndl = erts_thr_progress_unmanaged_delay();
+
+ prt = (Port *) erts_ptab_pix2intptr_ddrb(&erts_port,
+ internal_port_index(id));
+
+ if (!prt || prt->common.id != id) {
+ erts_thr_progress_unmanaged_continue(dhndl);
+ return NULL;
+ }
+ else {
+ erts_aint32_t state;
+ erts_port_inc_refc(prt);
+
+ if (dhndl != ERTS_THR_PRGR_DHANDLE_MANAGED)
+ erts_thr_progress_unmanaged_continue(dhndl);
+
+ state = erts_atomic32_read_acqb(&prt->state);
+ if (state & invalid_sflgs) {
+ erts_port_dec_refc(prt);
+ return NULL;
+ }
+
+ return prt;
+ }
+}
/*
* erts_thr_id2port_sflgs() and erts_thr_port_release() can