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perf inject: Handle output file via perf_data_file object 

Using the perf_data_file object to handle output file processing.

No functional change intended.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-01j9ophd7tntmgrxa40uqjjm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2013-10-29 19:04:57 +01:00 committed by Arnaldo Carvalho de Melo
parent 73db8f8261
commit 3406912cc1
1 changed files with 27 additions and 38 deletions
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65
tools/perf/builtin-inject.c
View File

@ -22,14 +22,13 @@
#include <linux/list.h>
struct perf_inject {
struct perf_tool tool;
bool build_ids;
bool sched_stat;
const char *input_name;
int pipe_output,
output;
u64 bytes_written;
struct list_head samples;
struct perf_tool tool;
bool build_ids;
bool sched_stat;
const char *input_name;
struct perf_data_file output;
u64 bytes_written;
struct list_head samples;
};
struct event_entry {
@ -42,21 +41,14 @@ static int perf_event__repipe_synth(struct perf_tool *tool,
union perf_event *event)
{
struct perf_inject *inject = container_of(tool, struct perf_inject, tool);
uint32_t size;
void *buf = event;
ssize_t size;
size = event->header.size;
while (size) {
int ret = write(inject->output, buf, size);
if (ret < 0)
return -errno;
size -= ret;
buf += ret;
inject->bytes_written += ret;
}
size = perf_data_file__write(&inject->output, event,
event->header.size);
if (size < 0)
return -errno;
inject->bytes_written += size;
return 0;
}
@ -80,7 +72,7 @@ static int perf_event__repipe_attr(struct perf_tool *tool,
if (ret)
return ret;
if (!inject->pipe_output)
if (&inject->output.is_pipe)
return 0;
return perf_event__repipe_synth(tool, event);
@ -355,6 +347,7 @@ static int __cmd_inject(struct perf_inject *inject)
.path = inject->input_name,
.mode = PERF_DATA_MODE_READ,
};
struct perf_data_file *file_out = &inject->output;
signal(SIGINT, sig_handler);
@ -391,14 +384,14 @@ static int __cmd_inject(struct perf_inject *inject)
}
}
if (!inject->pipe_output)
lseek(inject->output, session->header.data_offset, SEEK_SET);
if (!file_out->is_pipe)
lseek(file_out->fd, session->header.data_offset, SEEK_SET);
ret = perf_session__process_events(session, &inject->tool);
if (!inject->pipe_output) {
if (!file_out->is_pipe) {
session->header.data_size = inject->bytes_written;
perf_session__write_header(session, session->evlist, inject->output, true);
perf_session__write_header(session, session->evlist, file_out->fd, true);
}
perf_session__delete(session);
@ -427,14 +420,17 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
},
.input_name = "-",
.samples = LIST_HEAD_INIT(inject.samples),
.output = {
.path = "-",
.mode = PERF_DATA_MODE_WRITE,
},
};
const char *output_name = "-";
const struct option options[] = {
OPT_BOOLEAN('b', "build-ids", &inject.build_ids,
"Inject build-ids into the output stream"),
OPT_STRING('i', "input", &inject.input_name, "file",
"input file name"),
OPT_STRING('o', "output", &output_name, "file",
OPT_STRING('o', "output", &inject.output.path, "file",
"output file name"),
OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat,
"Merge sched-stat and sched-switch for getting events "
@ -456,16 +452,9 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
if (argc)
usage_with_options(inject_usage, options);
if (!strcmp(output_name, "-")) {
inject.pipe_output = 1;
inject.output = STDOUT_FILENO;
} else {
inject.output = open(output_name, O_CREAT | O_WRONLY | O_TRUNC,
S_IRUSR | S_IWUSR);
if (inject.output < 0) {
perror("failed to create output file");
return -1;
}
if (perf_data_file__open(&inject.output)) {
perror("failed to create output file");
return -1;
}
if (symbol__init() < 0)