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Diffstat (limited to 'erts/emulator/beam/erl_process.h')
-rw-r--r--erts/emulator/beam/erl_process.h34
1 files changed, 24 insertions, 10 deletions
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index a72c5b8ad4..71065d875a 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -1141,14 +1141,15 @@ void erts_check_for_holes(Process* p);
#define ERTS_PSFLG_PROXY ERTS_PSFLG_BIT(16)
#define ERTS_PSFLG_DELAYED_SYS ERTS_PSFLG_BIT(17)
#define ERTS_PSFLG_OFF_HEAP_MSGQ ERTS_PSFLG_BIT(18)
+#define ERTS_PSFLG_ON_HEAP_MSGQ ERTS_PSFLG_BIT(19)
#ifdef ERTS_DIRTY_SCHEDULERS
-#define ERTS_PSFLG_DIRTY_CPU_PROC ERTS_PSFLG_BIT(19)
-#define ERTS_PSFLG_DIRTY_IO_PROC ERTS_PSFLG_BIT(20)
-#define ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q ERTS_PSFLG_BIT(21)
-#define ERTS_PSFLG_DIRTY_IO_PROC_IN_Q ERTS_PSFLG_BIT(22)
-#define ERTS_PSFLG_MAX (ERTS_PSFLGS_ZERO_BIT_OFFSET + 23)
+#define ERTS_PSFLG_DIRTY_CPU_PROC ERTS_PSFLG_BIT(20)
+#define ERTS_PSFLG_DIRTY_IO_PROC ERTS_PSFLG_BIT(21)
+#define ERTS_PSFLG_DIRTY_CPU_PROC_IN_Q ERTS_PSFLG_BIT(22)
+#define ERTS_PSFLG_DIRTY_IO_PROC_IN_Q ERTS_PSFLG_BIT(23)
+#define ERTS_PSFLG_MAX (ERTS_PSFLGS_ZERO_BIT_OFFSET + 24)
#else
-#define ERTS_PSFLG_MAX (ERTS_PSFLGS_ZERO_BIT_OFFSET + 19)
+#define ERTS_PSFLG_MAX (ERTS_PSFLGS_ZERO_BIT_OFFSET + 20)
#endif
#define ERTS_PSFLGS_IN_PRQ_MASK (ERTS_PSFLG_IN_PRQ_MAX \
@@ -1197,6 +1198,7 @@ void erts_check_for_holes(Process* p);
#define SPO_MONITOR 4
#define SPO_SYSTEM_PROC 8
#define SPO_OFF_HEAP_MSGQ 16
+#define SPO_ON_HEAP_MSGQ 32
extern int erts_default_spo_flags;
@@ -1244,7 +1246,6 @@ Eterm* erts_heap_alloc(Process* p, Uint need, Uint xtra);
Eterm* erts_set_hole_marker(Eterm* ptr, Uint sz);
#endif
-extern Uint erts_default_process_flags;
extern erts_smp_rwmtx_t erts_cpu_bind_rwmtx;
/* If any of the erts_system_monitor_* variables are set (enabled),
** erts_system_monitor must be != NIL, to allow testing on just
@@ -1285,10 +1286,23 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags;
#define F_HAVE_BLCKD_MSCHED (1 << 8) /* Process has blocked multi-scheduling */
#define F_P2PNR_RESCHED (1 << 9) /* Process has been rescheduled via erts_pid2proc_not_running() */
#define F_FORCE_GC (1 << 10) /* Force gc at process in-scheduling */
-#define F_DISABLE_GC (1 << 11) /* Disable GC */
+#define F_DISABLE_GC (1 << 11) /* Disable GC (see below) */
#define F_OFF_HEAP_MSGQ (1 << 12) /* Off heap msg queue */
-#define F_OFF_HEAP_MSGQ_CHNG (1 << 13) /* Off heap msg queue changing */
-#define F_ABANDONED_HEAP_USE (1 << 14) /* Have usage of abandoned heap */
+#define F_ON_HEAP_MSGQ (1 << 13) /* Off heap msg queue */
+#define F_OFF_HEAP_MSGQ_CHNG (1 << 14) /* Off heap msg queue changing */
+#define F_ABANDONED_HEAP_USE (1 << 15) /* Have usage of abandoned heap */
+#define F_DELAY_GC (1 << 16) /* Similar to disable GC (see below) */
+
+/*
+ * F_DISABLE_GC and F_DELAY_GC are similar. Both will prevent
+ * GC of the process, but it is important to use the right
+ * one:
+ * - F_DISABLE_GC should *only* be used by BIFs. This when
+ * the BIF needs to yield while preventig a GC.
+ * - F_DELAY_GC should only be used when GC is temporarily
+ * disabled while the process is scheduled. A process must
+ * not be scheduled out while F_DELAY_GC is set.
+ */
/* process trace_flags */
#define F_SENSITIVE (1 << 0)