From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Wed, 10 Mar 2021 21:23:13 +0000 (-0500)
Subject: counters: add coalesce_hits to ABI
X-Git-Url: http://git.efficios.com/?p=deliverable%2Flttng-modules.git;a=commitdiff_plain;h=dd1ee9589c12b053ede875f28d6f235187dd8c4f

counters: add coalesce_hits to ABI

This will be required by an upcoming feature in a subsequent release, so
plan ahead with a coalesce_hits field. It is currently unused by
lttng-modules.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I0dd3a5c00a89c59111b723db8e39390a16764133
---

diff --git a/include/lttng/abi.h b/include/lttng/abi.h
index 86c0a3cf..0cdd6534 100644
--- a/include/lttng/abi.h
+++ b/include/lttng/abi.h
@@ -146,6 +146,8 @@ struct lttng_kernel_event_notifier {
 	char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING];
 } __attribute__((packed));
 
+#define LTTNG_KERNEL_COUNTER_DIMENSION_MAX	4
+
 enum lttng_kernel_counter_arithmetic {
 	LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR = 0,
 };
@@ -163,13 +165,15 @@ struct lttng_kernel_counter_dimension {
 	uint8_t has_overflow;
 } __attribute__((packed));
 
-#define LTTNG_KERNEL_COUNTER_DIMENSION_MAX 4
+#define LTTNG_KERNEL_COUNTER_CONF_PADDING1	67
 struct lttng_kernel_counter_conf {
 	uint32_t arithmetic;	/* enum lttng_kernel_counter_arithmetic */
 	uint32_t bitness;	/* enum lttng_kernel_counter_bitness */
 	uint32_t number_dimensions;
 	int64_t global_sum_step;
 	struct lttng_kernel_counter_dimension dimensions[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
+	uint8_t coalesce_hits;
+	char padding[LTTNG_KERNEL_COUNTER_CONF_PADDING1];
 } __attribute__((packed));
 
 struct lttng_kernel_counter_index {