mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 10:35:08 +07:00
266b851cc2
In order to make libtraceevent into a proper library, all its APIs should be defined in corresponding header files. This patch splits trace-seq related APIs in a separate header file: trace-seq.h Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/20180828185038.2dcb2743@gandalf.local.home Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
// SPDX-License-Identifier: LGPL-2.1
|
|
/*
|
|
* Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com>
|
|
*
|
|
*/
|
|
|
|
#ifndef _TRACE_SEQ_H
|
|
#define _TRACE_SEQ_H
|
|
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
|
|
/* ----------------------- trace_seq ----------------------- */
|
|
|
|
#ifndef TRACE_SEQ_BUF_SIZE
|
|
#define TRACE_SEQ_BUF_SIZE 4096
|
|
#endif
|
|
|
|
enum trace_seq_fail {
|
|
TRACE_SEQ__GOOD,
|
|
TRACE_SEQ__BUFFER_POISONED,
|
|
TRACE_SEQ__MEM_ALLOC_FAILED,
|
|
};
|
|
|
|
/*
|
|
* Trace sequences are used to allow a function to call several other functions
|
|
* to create a string of data to use (up to a max of PAGE_SIZE).
|
|
*/
|
|
|
|
struct trace_seq {
|
|
char *buffer;
|
|
unsigned int buffer_size;
|
|
unsigned int len;
|
|
unsigned int readpos;
|
|
enum trace_seq_fail state;
|
|
};
|
|
|
|
void trace_seq_init(struct trace_seq *s);
|
|
void trace_seq_reset(struct trace_seq *s);
|
|
void trace_seq_destroy(struct trace_seq *s);
|
|
|
|
extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
|
|
__attribute__ ((format (printf, 2, 3)));
|
|
extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args)
|
|
__attribute__ ((format (printf, 2, 0)));
|
|
|
|
extern int trace_seq_puts(struct trace_seq *s, const char *str);
|
|
extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
|
|
|
|
extern void trace_seq_terminate(struct trace_seq *s);
|
|
|
|
extern int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp);
|
|
extern int trace_seq_do_printf(struct trace_seq *s);
|
|
|
|
#endif /* _TRACE_SEQ_H */
|