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Commit 97deb299 authored by Tom Cherry's avatar Tom Cherry
Browse files

liblog: include all structures in README.protocol.md 

We are stating that these structures will be stable, so include them
in the documentation directly.

Bug: 152466437
Test: n/a
Change-Id: I52a05f61163aa35b99869d722284ff3f98d7f010
parent 79f3d26b

liblog/README.protocol.md

+43 −0
Original line number Diff line number Diff line
@@ -17,6 +17,49 @@ The data that liblog sends to logd is represented below. 
        };

    };



where the embedded structs are defined as:



    struct android_log_header_t {

        uint8_t id;

        uint16_t tid;

        log_time realtime;

    };



    struct log_time {

        uint32_t tv_sec = 0;

        uint32_t tv_nsec = 0;

    }



    struct android_event_header_t {

        int32_t tag;

    };



    struct android_event_list_t {

        int8_t type;  // EVENT_TYPE_LIST

        int8_t element_count;

    };



    struct android_event_float_t {

        int8_t type;  // EVENT_TYPE_FLOAT

        float data;

    };



    struct android_event_int_t {

        int8_t type;   // EVENT_TYPE_INT

        int32_t data;

    } android_event_int_t;



    struct android_event_long_t {

        int8_t type;   // EVENT_TYPE_LONG

        int64_t data;

    };



    struct android_event_string_t {

        int8_t type;     // EVENT_TYPE_STRING;

        int32_t length;

        char data[];

    };



The payload, excluding the header, has a max size of LOGGER_ENTRY_MAX_PAYLOAD.



## header