Commit 189b0f09 authored by Konrad Sztyber's avatar Konrad Sztyber Committed by Tomasz Zawadzki
Browse files

lib/trace_parser: method for retrieving entry count 



Signed-off-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
Change-Id: If5f1b1bea0d30419be46e704ddd7c2f9556b4627
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9498


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: default avatarKrzysztof Karas <krzysztof.karas@intel.com>
Reviewed-by: default avatarAleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
parent ffaec5f9

include/spdk/trace_parser.h

+10 −0
Original line number Diff line number Diff line
@@ -135,6 +135,16 @@ struct spdk_trace_parser_entry { 
bool spdk_trace_parser_next_entry(struct spdk_trace_parser *parser,

				  struct spdk_trace_parser_entry *entry);



/**

 * Return the number of entries recorded on a given core.

 *

 * \param parser Parser object to be used.

 * \param lcore Logical core number.

 *

 * \return Number of entries.

 */

uint64_t spdk_trace_parser_get_entry_count(const struct spdk_trace_parser *parser, uint16_t lcore);



#ifdef __cplusplus

}

#endif

lib/trace_parser/spdk_trace_parser.map

+1 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
	spdk_trace_parser_get_flags;

	spdk_trace_parser_get_tsc_offset;

	spdk_trace_parser_next_entry;

	spdk_trace_parser_get_entry_count;



	local: *;

};

lib/trace_parser/trace.cpp

+22 −0
Original line number Diff line number Diff line
@@ -89,6 +89,7 @@ struct spdk_trace_parser { 
	const spdk_trace_flags *flags() const { return &_histories->flags; }

	uint64_t tsc_offset() const { return _tsc_offset; }

	bool next_entry(spdk_trace_parser_entry *entry);

	uint64_t entry_count(uint16_t lcore) const;

private:

	spdk_trace_entry_buffer *get_next_buffer(spdk_trace_entry_buffer *buf, uint16_t lcore);

	bool build_arg(argument_context *argctx, const spdk_trace_argument *arg, int argid,
@@ -105,6 +106,21 @@ private: 
	entry_map::iterator	_iter;

};



uint64_t

spdk_trace_parser::entry_count(uint16_t lcore) const

{

	spdk_trace_history *history;



	if (lcore >= SPDK_TRACE_MAX_LCORE) {

		return 0;

	}



	history = spdk_get_per_lcore_history(_histories, lcore);

	assert(history);



	return history->num_entries;

}



spdk_trace_entry_buffer *

spdk_trace_parser::get_next_buffer(spdk_trace_entry_buffer *buf, uint16_t lcore)

{
@@ -380,3 +396,9 @@ spdk_trace_parser_next_entry(struct spdk_trace_parser *parser, 
{

	return parser->next_entry(entry);

}



uint64_t

spdk_trace_parser_get_entry_count(const struct spdk_trace_parser *parser, uint16_t lcore)

{

	return parser->entry_count(lcore);

}