struct trace_context
Defined at line 52 of file ../../zircon/system/ulib/trace-engine/context_impl.h
Maintains state for a single trace session.
This structure is accessed concurrently from many threads which hold trace
context references.
Implements the opaque type declared in
<trace
-engine/context.h>.
Public Methods
void get_header (trace_buffer_header * dest)Copy the current header state into dest
Defined at line 59 of file ../../zircon/system/ulib/trace-engine/context_impl.h
size_t min_buffer_size ()Defined at line 64 of file ../../zircon/system/ulib/trace-engine/context_impl.h
size_t max_buffer_size ()Defined at line 66 of file ../../zircon/system/ulib/trace-engine/context_impl.h
uint32_t generation ()Defined at line 68 of file ../../zircon/system/ulib/trace-engine/context_impl.h
trace_handler_t * handler ()Defined at line 70 of file ../../zircon/system/ulib/trace-engine/context_impl.h
trace_buffering_mode_t buffering_mode ()Defined at line 72 of file ../../zircon/system/ulib/trace-engine/context_impl.h
uint64_t num_records_dropped ()Defined at line 74 of file ../../zircon/system/ulib/trace-engine/context_impl.h
bool UsingDurableBuffer ()Defined at line 78 of file ../../zircon/system/ulib/trace-engine/context_impl.h
bool WasRecordDropped ()Return true if at least one record was dropped.
Defined at line 81 of file ../../zircon/system/ulib/trace-engine/context_impl.h
void trace_context (void * buffer, size_t buffer_num_bytes, trace_buffering_mode_t buffering_mode, trace_handler_t * handler)Defined at line 98 of file ../../zircon/system/ulib/trace-engine/context.cc
void ~trace_context ()Defined at line 112 of file ../../zircon/system/ulib/trace-engine/context.cc
void ResetRollingBufferPointers ()void ResetBufferPointers ()Defined at line 245 of file ../../zircon/system/ulib/trace-engine/context.cc
void InitBufferHeader ()Defined at line 250 of file ../../zircon/system/ulib/trace-engine/context.cc
void ClearEntireBuffer ()Defined at line 263 of file ../../zircon/system/ulib/trace-engine/context.cc
void ClearRollingBuffers ()Defined at line 268 of file ../../zircon/system/ulib/trace-engine/context.cc
void UpdateBufferHeaderAfterStopped ()Defined at line 270 of file ../../zircon/system/ulib/trace-engine/context.cc
void ServiceBuffers ()Defined at line 281 of file ../../zircon/system/ulib/trace-engine/context.cc
uint64_t * AllocRecord (size_t num_bytes)Defined at line 114 of file ../../zircon/system/ulib/trace-engine/context.cc
uint64_t * AllocDurableRecord (size_t num_bytes)Defined at line 154 of file ../../zircon/system/ulib/trace-engine/context.cc
bool AllocThreadIndex (trace_thread_index_t * out_index)Defined at line 168 of file ../../zircon/system/ulib/trace-engine/context.cc
bool AllocStringIndex (trace_string_index_t * out_index)Defined at line 179 of file ../../zircon/system/ulib/trace-engine/context.cc
void MarkRollingBufferSaved (uint32_t wrapped_count, uint64_t durable_data_end)This is called by the handler when it has been notified that a buffer
has been saved.
|wrapped_count| is the wrapped count at the time the buffer save request
was made. Similarly for |durable_data_end|.
Defined at line 345 of file ../../zircon/system/ulib/trace-engine/context.cc
void HandleSaveRollingBufferRequest (uint32_t wrapped_count, uint64_t durable_data_end)This is only called from the engine to initiate a buffer save.
Defined at line 333 of file ../../zircon/system/ulib/trace-engine/context.cc