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Date: Fri, 14 Mar 2014 18:30:03 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Namhyung Kim <namhyung@...nel.org>,
Andi Kleen <andi@...stfloor.org>,
David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...hat.com>,
Namhyung Kim <namhyung.kim@....com>,
Paul Mackerras <paulus@...ba.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 09/16] perf ui/hists: Pass struct hpp to print functions
From: Namhyung Kim <namhyung@...nel.org>
Instead of the pointer to buffer and its size so that it can also get
private argument passed along with hpp.
This is a preparation of further change.
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
Cc: Andi Kleen <andi@...stfloor.org>
Cc: David Ahern <dsahern@...il.com>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung.kim@....com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1393809254-4480-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/ui/gtk/hists.c | 4 ++-
tools/perf/ui/hist.c | 87 +++++++++++++++++++++++++++++++++++-----------
tools/perf/ui/stdio/hist.c | 6 ----
tools/perf/util/hist.h | 8 ++++-
4 files changed, 76 insertions(+), 29 deletions(-)
diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 3dab00e748f2..430fd555b161 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -8,12 +8,14 @@
#define MAX_COLUMNS 32
-static int __percent_color_snprintf(char *buf, size_t size, const char *fmt, ...)
+static int __percent_color_snprintf(struct perf_hpp *hpp, const char *fmt, ...)
{
int ret = 0;
va_list args;
double percent;
const char *markup;
+ char *buf = hpp->buf;
+ size_t size = hpp->size;
va_start(args, fmt);
percent = va_arg(args, double);
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 085353435f07..0c427e5d37c7 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -8,6 +8,13 @@
/* hist period print (hpp) functions */
+#define hpp__call_print_fn(hpp, fn, fmt, ...) \
+({ \
+ int __ret = fn(hpp, fmt, ##__VA_ARGS__); \
+ advance_hpp(hpp, __ret); \
+ __ret; \
+})
+
int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
u64 (*get_field)(struct hist_entry *),
const char *fmt, hpp_snprint_fn print_fn, bool fmt_percent)
@@ -15,6 +22,8 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
int ret;
struct hists *hists = he->hists;
struct perf_evsel *evsel = hists_to_evsel(hists);
+ char *buf = hpp->buf;
+ size_t size = hpp->size;
if (fmt_percent) {
double percent = 0.0;
@@ -23,9 +32,9 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
percent = 100.0 * get_field(he) /
hists->stats.total_period;
- ret = print_fn(hpp->buf, hpp->size, fmt, percent);
+ ret = hpp__call_print_fn(hpp, print_fn, fmt, percent);
} else
- ret = print_fn(hpp->buf, hpp->size, fmt, get_field(he));
+ ret = hpp__call_print_fn(hpp, print_fn, fmt, get_field(he));
if (perf_evsel__is_group_event(evsel)) {
int prev_idx, idx_delta;
@@ -50,22 +59,21 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
* have no sample
*/
if (fmt_percent) {
- ret += print_fn(hpp->buf + ret,
- hpp->size - ret,
- fmt, 0.0);
+ ret += hpp__call_print_fn(hpp, print_fn,
+ fmt, 0.0);
} else {
- ret += print_fn(hpp->buf + ret,
- hpp->size - ret,
- fmt, 0ULL);
+ ret += hpp__call_print_fn(hpp, print_fn,
+ fmt, 0ULL);
}
}
- if (fmt_percent)
- ret += print_fn(hpp->buf + ret, hpp->size - ret,
- fmt, 100.0 * period / total);
- else
- ret += print_fn(hpp->buf + ret, hpp->size - ret,
- fmt, period);
+ if (fmt_percent) {
+ ret += hpp__call_print_fn(hpp, print_fn, fmt,
+ 100.0 * period / total);
+ } else {
+ ret += hpp__call_print_fn(hpp, print_fn, fmt,
+ period);
+ }
prev_idx = perf_evsel__group_idx(evsel);
}
@@ -77,14 +85,22 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
* zero-fill group members at last which have no sample
*/
if (fmt_percent) {
- ret += print_fn(hpp->buf + ret, hpp->size - ret,
- fmt, 0.0);
+ ret += hpp__call_print_fn(hpp, print_fn,
+ fmt, 0.0);
} else {
- ret += print_fn(hpp->buf + ret, hpp->size - ret,
- fmt, 0ULL);
+ ret += hpp__call_print_fn(hpp, print_fn,
+ fmt, 0ULL);
}
}
}
+
+ /*
+ * Restore original buf and size as it's where caller expects
+ * the result will be saved.
+ */
+ hpp->buf = buf;
+ hpp->size = size;
+
return ret;
}
@@ -116,6 +132,34 @@ static int hpp__width_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
return len; \
}
+static int hpp_color_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
+{
+ va_list args;
+ ssize_t ssize = hpp->size;
+ double percent;
+ int ret;
+
+ va_start(args, fmt);
+ percent = va_arg(args, double);
+ ret = value_color_snprintf(hpp->buf, hpp->size, fmt, percent);
+ va_end(args);
+
+ return (ret >= ssize) ? (ssize - 1) : ret;
+}
+
+static int hpp_entry_scnprintf(struct perf_hpp *hpp, const char *fmt, ...)
+{
+ va_list args;
+ ssize_t ssize = hpp->size;
+ int ret;
+
+ va_start(args, fmt);
+ ret = vsnprintf(hpp->buf, hpp->size, fmt, args);
+ va_end(args);
+
+ return (ret >= ssize) ? (ssize - 1) : ret;
+}
+
#define __HPP_COLOR_PERCENT_FN(_type, _field) \
static u64 he_get_##_field(struct hist_entry *he) \
{ \
@@ -126,7 +170,7 @@ static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
struct perf_hpp *hpp, struct hist_entry *he) \
{ \
return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%", \
- percent_color_snprintf, true); \
+ hpp_color_scnprintf, true); \
}
#define __HPP_ENTRY_PERCENT_FN(_type, _field) \
@@ -135,7 +179,7 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \
{ \
const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%"; \
return __hpp__fmt(hpp, he, he_get_##_field, fmt, \
- scnprintf, true); \
+ hpp_entry_scnprintf, true); \
}
#define __HPP_ENTRY_RAW_FN(_type, _field) \
@@ -148,7 +192,8 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused, \
struct perf_hpp *hpp, struct hist_entry *he) \
{ \
const char *fmt = symbol_conf.field_sep ? " %"PRIu64 : " %11"PRIu64; \
- return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt, scnprintf, false); \
+ return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt, \
+ hpp_entry_scnprintf, false); \
}
#define HPP_PERCENT_FNS(_type, _str, _field, _min_width, _unit_width) \
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 831fbb77d1ff..9bad89228472 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -306,12 +306,6 @@ static size_t hist_entry__callchain_fprintf(struct hist_entry *he,
return hist_entry_callchain__fprintf(he, total_period, left_margin, fp);
}
-static inline void advance_hpp(struct perf_hpp *hpp, int inc)
-{
- hpp->buf += inc;
- hpp->size -= inc;
-}
-
static int hist_entry__period_snprintf(struct perf_hpp *hpp,
struct hist_entry *he)
{
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 97f924ec6af9..d51ed9898229 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -166,12 +166,18 @@ void perf_hpp__init(void);
void perf_hpp__column_register(struct perf_hpp_fmt *format);
void perf_hpp__column_enable(unsigned col);
-typedef int (*hpp_snprint_fn)(char *buf, size_t size, const char *fmt, ...);
+typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...);
int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
u64 (*get_field)(struct hist_entry *),
const char *fmt, hpp_snprint_fn print_fn, bool fmt_percent);
+static inline void advance_hpp(struct perf_hpp *hpp, int inc)
+{
+ hpp->buf += inc;
+ hpp->size -= inc;
+}
+
static inline size_t perf_hpp__use_color(void)
{
return !symbol_conf.field_sep;
--
1.8.1.4
--
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