From ebfd93b6803acef1a799ef6c755500087e37496e Mon Sep 17 00:00:00 2001 From: "Daniel P. Berrange" Date: Fri, 30 Sep 2016 15:45:26 +0100 Subject: qapi: add trace events for visitor Allow tracing of the operation of visitors Signed-off-by: Daniel P. Berrange Message-Id: <1475246744-29302-4-git-send-email-berrange@redhat.com> Reviewed-by: Eric Blake Reviewed-by: Kevin Wolf Reviewed-by: Markus Armbruster [visit_type_uint8() & friends rearranged slightly for clarity] Signed-off-by: Markus Armbruster --- qapi/qapi-visit-core.c | 51 ++++++++++++++++++++++++++++++++++++++++++++------ qapi/trace-events | 33 ++++++++++++++++++++++++++++++++ 2 files changed, 78 insertions(+), 6 deletions(-) create mode 100644 qapi/trace-events (limited to 'qapi') diff --git a/qapi/qapi-visit-core.c b/qapi/qapi-visit-core.c index 55f5876dc0..63bd97b341 100644 --- a/qapi/qapi-visit-core.c +++ b/qapi/qapi-visit-core.c @@ -19,10 +19,12 @@ #include "qapi/qmp/qerror.h" #include "qapi/visitor.h" #include "qapi/visitor-impl.h" +#include "trace.h" void visit_complete(Visitor *v, void *opaque) { assert(v->type != VISITOR_OUTPUT || v->complete); + trace_visit_complete(v, opaque); if (v->complete) { v->complete(v, opaque); } @@ -30,6 +32,7 @@ void visit_complete(Visitor *v, void *opaque) void visit_free(Visitor *v) { + trace_visit_free(v); if (v) { v->free(v); } @@ -40,6 +43,7 @@ void visit_start_struct(Visitor *v, const char *name, void **obj, { Error *err = NULL; + trace_visit_start_struct(v, name, obj, size); if (obj) { assert(size); assert(!(v->type & VISITOR_OUTPUT) || *obj); @@ -53,6 +57,7 @@ void visit_start_struct(Visitor *v, const char *name, void **obj, void visit_check_struct(Visitor *v, Error **errp) { + trace_visit_check_struct(v); if (v->check_struct) { v->check_struct(v, errp); } @@ -60,6 +65,7 @@ void visit_check_struct(Visitor *v, Error **errp) void visit_end_struct(Visitor *v, void **obj) { + trace_visit_end_struct(v, obj); v->end_struct(v, obj); } @@ -69,6 +75,7 @@ void visit_start_list(Visitor *v, const char *name, GenericList **list, Error *err = NULL; assert(!list || size >= sizeof(GenericList)); + trace_visit_start_list(v, name, list, size); v->start_list(v, name, list, size, &err); if (list && (v->type & VISITOR_INPUT)) { assert(!(err && *list)); @@ -79,11 +86,13 @@ void visit_start_list(Visitor *v, const char *name, GenericList **list, GenericList *visit_next_list(Visitor *v, GenericList *tail, size_t size) { assert(tail && size >= sizeof(GenericList)); + trace_visit_next_list(v, tail, size); return v->next_list(v, tail, size); } void visit_end_list(Visitor *v, void **obj) { + trace_visit_end_list(v, obj); v->end_list(v, obj); } @@ -95,6 +104,7 @@ void visit_start_alternate(Visitor *v, const char *name, assert(obj && size >= sizeof(GenericAlternate)); assert(!(v->type & VISITOR_OUTPUT) || *obj); + trace_visit_start_alternate(v, name, obj, size, promote_int); if (v->start_alternate) { v->start_alternate(v, name, obj, size, promote_int, &err); } @@ -106,6 +116,7 @@ void visit_start_alternate(Visitor *v, const char *name, void visit_end_alternate(Visitor *v, void **obj) { + trace_visit_end_alternate(v, obj); if (v->end_alternate) { v->end_alternate(v, obj); } @@ -113,6 +124,7 @@ void visit_end_alternate(Visitor *v, void **obj) bool visit_optional(Visitor *v, const char *name, bool *present) { + trace_visit_optional(v, name, present); if (v->optional) { v->optional(v, name, present); } @@ -127,6 +139,7 @@ bool visit_is_input(Visitor *v) void visit_type_int(Visitor *v, const char *name, int64_t *obj, Error **errp) { assert(obj); + trace_visit_type_int(v, name, obj); v->type_int64(v, name, obj, errp); } @@ -150,7 +163,10 @@ static void visit_type_uintN(Visitor *v, uint64_t *obj, const char *name, void visit_type_uint8(Visitor *v, const char *name, uint8_t *obj, Error **errp) { - uint64_t value = *obj; + uint64_t value; + + trace_visit_type_uint8(v, name, obj); + value = *obj; visit_type_uintN(v, &value, name, UINT8_MAX, "uint8_t", errp); *obj = value; } @@ -158,7 +174,10 @@ void visit_type_uint8(Visitor *v, const char *name, uint8_t *obj, void visit_type_uint16(Visitor *v, const char *name, uint16_t *obj, Error **errp) { - uint64_t value = *obj; + uint64_t value; + + trace_visit_type_uint16(v, name, obj); + value = *obj; visit_type_uintN(v, &value, name, UINT16_MAX, "uint16_t", errp); *obj = value; } @@ -166,7 +185,10 @@ void visit_type_uint16(Visitor *v, const char *name, uint16_t *obj, void visit_type_uint32(Visitor *v, const char *name, uint32_t *obj, Error **errp) { - uint64_t value = *obj; + uint64_t value; + + trace_visit_type_uint32(v, name, obj); + value = *obj; visit_type_uintN(v, &value, name, UINT32_MAX, "uint32_t", errp); *obj = value; } @@ -175,6 +197,7 @@ void visit_type_uint64(Visitor *v, const char *name, uint64_t *obj, Error **errp) { assert(obj); + trace_visit_type_uint64(v, name, obj); v->type_uint64(v, name, obj, errp); } @@ -198,7 +221,10 @@ static void visit_type_intN(Visitor *v, int64_t *obj, const char *name, void visit_type_int8(Visitor *v, const char *name, int8_t *obj, Error **errp) { - int64_t value = *obj; + int64_t value; + + trace_visit_type_int8(v, name, obj); + value = *obj; visit_type_intN(v, &value, name, INT8_MIN, INT8_MAX, "int8_t", errp); *obj = value; } @@ -206,7 +232,10 @@ void visit_type_int8(Visitor *v, const char *name, int8_t *obj, Error **errp) void visit_type_int16(Visitor *v, const char *name, int16_t *obj, Error **errp) { - int64_t value = *obj; + int64_t value; + + trace_visit_type_int16(v, name, obj); + value = *obj; visit_type_intN(v, &value, name, INT16_MIN, INT16_MAX, "int16_t", errp); *obj = value; } @@ -214,7 +243,10 @@ void visit_type_int16(Visitor *v, const char *name, int16_t *obj, void visit_type_int32(Visitor *v, const char *name, int32_t *obj, Error **errp) { - int64_t value = *obj; + int64_t value; + + trace_visit_type_int32(v, name, obj); + value = *obj; visit_type_intN(v, &value, name, INT32_MIN, INT32_MAX, "int32_t", errp); *obj = value; } @@ -223,6 +255,7 @@ void visit_type_int64(Visitor *v, const char *name, int64_t *obj, Error **errp) { assert(obj); + trace_visit_type_int64(v, name, obj); v->type_int64(v, name, obj, errp); } @@ -230,6 +263,7 @@ void visit_type_size(Visitor *v, const char *name, uint64_t *obj, Error **errp) { assert(obj); + trace_visit_type_size(v, name, obj); if (v->type_size) { v->type_size(v, name, obj, errp); } else { @@ -240,6 +274,7 @@ void visit_type_size(Visitor *v, const char *name, uint64_t *obj, void visit_type_bool(Visitor *v, const char *name, bool *obj, Error **errp) { assert(obj); + trace_visit_type_bool(v, name, obj); v->type_bool(v, name, obj, errp); } @@ -252,6 +287,7 @@ void visit_type_str(Visitor *v, const char *name, char **obj, Error **errp) * can enable: assert(!(v->type & VISITOR_OUTPUT) || *obj); */ + trace_visit_type_str(v, name, obj); v->type_str(v, name, obj, &err); if (v->type & VISITOR_INPUT) { assert(!err != !*obj); @@ -263,6 +299,7 @@ void visit_type_number(Visitor *v, const char *name, double *obj, Error **errp) { assert(obj); + trace_visit_type_number(v, name, obj); v->type_number(v, name, obj, errp); } @@ -272,6 +309,7 @@ void visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp) assert(obj); assert(v->type != VISITOR_OUTPUT || *obj); + trace_visit_type_any(v, name, obj); v->type_any(v, name, obj, &err); if (v->type == VISITOR_INPUT) { assert(!err != !*obj); @@ -281,6 +319,7 @@ void visit_type_any(Visitor *v, const char *name, QObject **obj, Error **errp) void visit_type_null(Visitor *v, const char *name, Error **errp) { + trace_visit_type_null(v, name); v->type_null(v, name, errp); } diff --git a/qapi/trace-events b/qapi/trace-events new file mode 100644 index 0000000000..2c5d3bc7d7 --- /dev/null +++ b/qapi/trace-events @@ -0,0 +1,33 @@ +# qapi-visit-core.c +visit_free(void *v) "v=%p" +visit_complete(void *v, void *opaque) "v=%p opaque=%p" + +visit_start_struct(void *v, const char *name, void *obj, size_t size) "v=%p name=%s obj=%p size=%zu" +visit_check_struct(void *v) "v=%p" +visit_end_struct(void *v, void *obj) "v=%p obj=%p" + +visit_start_list(void *v, const char *name, void *obj, size_t size) "v=%p name=%s obj=%p size=%zu" +visit_next_list(void *v, void *tail, size_t size) "v=%p tail=%p size=%zu" +visit_end_list(void *v, void *obj) "v=%p obj=%p" + +visit_start_alternate(void *v, const char *name, void *obj, size_t size, bool promote_int) "v=%p name=%s obj=%p size=%zu promote_int=%d" +visit_end_alternate(void *v, void *obj) "v=%p obj=%p" + +visit_optional(void *v, const char *name, bool *present) "v=%p name=%s present=%p" + +visit_type_enum(void *v, const char *name, int *obj) "v=%p name=%s obj=%p" +visit_type_int(void *v, const char *name, int64_t *obj) "v=%p name=%s obj=%p" +visit_type_uint8(void *v, const char *name, uint8_t *obj) "v=%p name=%s obj=%p" +visit_type_uint16(void *v, const char *name, uint16_t *obj) "v=%p name=%s obj=%p" +visit_type_uint32(void *v, const char *name, uint32_t *obj) "v=%p name=%s obj=%p" +visit_type_uint64(void *v, const char *name, uint64_t *obj) "v=%p name=%s obj=%p" +visit_type_int8(void *v, const char *name, int8_t *obj) "v=%p name=%s obj=%p" +visit_type_int16(void *v, const char *name, int16_t *obj) "v=%p name=%s obj=%p" +visit_type_int32(void *v, const char *name, int32_t *obj) "v=%p name=%s obj=%p" +visit_type_int64(void *v, const char *name, int64_t *obj) "v=%p name=%s obj=%p" +visit_type_size(void *v, const char *name, uint64_t *obj) "v=%p name=%s obj=%p" +visit_type_bool(void *v, const char *name, bool *obj) "v=%p name=%s obj=%p" +visit_type_str(void *v, const char *name, char **obj) "v=%p name=%s obj=%p" +visit_type_number(void *v, const char *name, double *obj) "v=%p name=%s obj=%p" +visit_type_any(void *v, const char *name, void *obj) "v=%p name=%s obj=%p" +visit_type_null(void *v, const char *name) "v=%p name=%s" -- cgit v1.2.3