Signed-off-by: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxxxxxxxx>
---
lib/igt_core.c | 24 ++++++++++++++++++++++++
lib/igt_core.h | 3 +++
2 files changed, 27 insertions(+)
diff --git a/lib/igt_core.c b/lib/igt_core.c
index 8a7ba0d..e80a32a 100644
--- a/lib/igt_core.c
+++ b/lib/igt_core.c
@@ -329,6 +329,30 @@ static void _igt_log_buffer_dump(void)
pthread_mutex_unlock(&log_buffer_mutex);
}
+/**
+ * igt_log_buffer_inspect:
+ *
+ * Provides a way to replay the internal igt log buffer for inspection.
+ * @check: A user-specified handler that gets invoked for each line of
+ the log buffer. The handler should return true to stop
+ inspecting the rest of the buffer.
+ * @data: passed as a user argument to the inspection function.
+ */
+void igt_log_buffer_inspect(igt_buffer_log_handler_t check, void *data)
+{
+ uint8_t i;
+ pthread_mutex_lock(&log_buffer_mutex);
+
+ i = log_buffer.start;
+ do {
+ if (check(log_buffer.entries[i], data))
+ break;
+ i++;
+ } while (i != log_buffer.start && i != log_buffer.end);
+
+ pthread_mutex_unlock(&log_buffer_mutex);
+}
+
__attribute__((format(printf, 1, 2)))
static void kmsg(const char *format, ...)
#define KERN_EMER "<0>"
diff --git a/lib/igt_core.h b/lib/igt_core.h
index 6d4cf60..3e0d3c3 100644
--- a/lib/igt_core.h
+++ b/lib/igt_core.h
@@ -817,6 +817,9 @@ void igt_vlog(const char *domain, enum igt_log_level level, const char *format,
*/
#define igt_critical(f...) igt_log(IGT_LOG_DOMAIN, IGT_LOG_CRITICAL, f)
+typedef bool (*igt_buffer_log_handler_t)(const char *line, void *data);
+void igt_log_buffer_inspect(igt_buffer_log_handler_t check, void *data);
+
extern enum igt_log_level igt_log_level;
/**
--
2.7.4
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