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Added trace_seq_terminate that zeros out the buffer if the buffer
is not full. This is useful when data being returned may be used
in a printf directly or more data will be added to the trace_seq.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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The trace_seq buffer might fill up, and right now
one needs to check the return value of each printf
into the buffer to check for that.
Instead, have the buffer keep track of whether it
is full or not, and reject more input if it is full
or would have overflowed with an input that wasn't
added.
Also simplify the buffer output function and have
it print [truncated] when that is the case.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
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The functions for trace-seq are moving into the parse-events library.
We need to keep the headers more consolidated.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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trace_seq_putmem* and trace_seq_reserve are not used by the parser.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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The trace-seq is a nice utility I wrote for Linux. It makes a page size
buffer that that can be written to with a printf,puts,putc interface.
This is perfect for having the same routine write the same type of
output, and used separately.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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