Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

[mirror_qemu.git] / trace / control.h

diff --git a/trace/control.h b/trace/control.h
index 1f81c491b693d88f6268c22094304803b5e0c758..23b8393b297e379bb64e504f99a4606d705be768 100644 (file)
--- a/trace/control.h
+++ b/trace/control.h
@@ -13,22 +13,44 @@
 #include "event-internal.h"
 
 typedef struct TraceEventIter {
+    /* iter state */
     size_t event;
     size_t group;
+    /* filter conditions */
+    size_t group_id;
     const char *pattern;
 } TraceEventIter;
 
 
 /**
- * trace_event_iter_init:
+ * trace_event_iter_init_all:
  * @iter: the event iterator struct
- * @pattern: optional pattern to filter events on name
  *
  * Initialize the event iterator struct @iter,
- * optionally using @pattern to filter out events
+ * for all events.
+ */
+void trace_event_iter_init_all(TraceEventIter *iter);
+
+/**
+ * trace_event_iter_init_pattern:
+ * @iter: the event iterator struct
+ * @pattern: pattern to filter events on name
+ *
+ * Initialize the event iterator struct @iter,
+ * using @pattern to filter out events
  * with non-matching names.
  */
-void trace_event_iter_init(TraceEventIter *iter, const char *pattern);
+void trace_event_iter_init_pattern(TraceEventIter *iter, const char *pattern);
+
+/**
+ * trace_event_iter_init_group:
+ * @iter: the event iterator struct
+ * @group_id: group_id to filter events by group.
+ *
+ * Initialize the event iterator struct @iter,
+ * using @group_id to filter for events in the group.
+ */
+void trace_event_iter_init_group(TraceEventIter *iter, size_t group_id);
 
 /**
  * trace_event_iter_next:
@@ -167,8 +189,6 @@ void trace_event_set_vcpu_state_dynamic(CPUState *vcpu,
 
 /**
  * trace_init_backends:
- * @file:   Name of trace output file; may be NULL.
- *          Corresponds to commandline option "--trace file=...".
  *
  * Initialize the tracing backend.
  *
@@ -178,14 +198,12 @@ bool trace_init_backends(void);
 
 /**
  * trace_init_file:
- * @file:   Name of trace output file; may be NULL.
- *          Corresponds to commandline option "--trace file=...".
  *
  * Record the name of the output file for the tracing backend.
  * Exits if no selected backend does not support specifying the
- * output file, and a non-NULL file was passed.
+ * output file, and a file was specified with "-trace file=...".
  */
-void trace_init_file(const char *file);
+void trace_init_file(void);
 
 /**
  * trace_init_vcpu:
@@ -205,10 +223,11 @@ void trace_fini_vcpu(CPUState *vcpu);
 
 /**
  * trace_list_events:
+ * @f: Where to send output.
  *
  * List all available events.
  */
-void trace_list_events(void);
+void trace_list_events(FILE *f);
 
 /**
  * trace_enable_events:
@@ -229,10 +248,8 @@ extern QemuOptsList qemu_trace_opts;
  * @optarg: A string argument of --trace command line argument
  *
  * Initialize tracing subsystem.
- *
- * Returns the filename to save trace to.  It must be freed with g_free().
  */
-char *trace_opt_parse(const char *optarg);
+void trace_opt_parse(const char *optarg);
 
 /**
  * trace_get_vcpu_event_count: