Lines Matching refs:trace
33 * The ATRACE_TAG macro can be defined before including this header to trace
35 * following ATRACE_TAG_* macros. The trace tag is used to filter tracing in
40 * has a performance cost even when the trace is not being recorded. Defining
88 #error ATRACE_TAG must be defined to be one of the tags defined in cutils/trace.h
92 * Opens the trace file for writing and reads the property for initial tags.
93 * The atrace.tags.enableflags property sets the tags to trace.
95 * trace function will cause it to be run safely.
119 * Set of ATRACE_TAG flags to trace for, initialized to ATRACE_TAG_NOT_READY.
126 * Handle to the kernel's trace buffer, initialized to -1.
133 * Calling any trace function causes this to be run, so calling it is optional.
134 * This can be explicitly run to avoid setup delay on first trace function.
145 * It can be used as a guard condition around more expensive trace calculations.