Commit 6322010e authored by Cedric Roux's avatar Cedric Roux

T: add a tracer: extract

This tracer extracts the content of a buffer field of an event
that was previously saved using the tracer 'record'.

For example, to extract the channel estimation done in
frame 924 and subframe 2 as saved in the file input_record.raw
and to store it in the file output.raw, do:

./extract -d ../T_messages.txt -o output.raw input_record.raw ENB_PHY_UL_CHANNEL_ESTIMATE chest_t -f frame 924 -f subframe 2
parent 6da42658
......@@ -10,4 +10,5 @@ tracer/replay
tracer/textlog
tracer/vcd
tracer/macpdu2wireshark
tracer/extract
tracee/tracee
......@@ -6,7 +6,7 @@ CFLAGS=-Wall -g -pthread -DT_TRACER -I.
LIBS=-lX11 -lm -lpng -lXft
all: record replay extract_config textlog enb ue vcd macpdu2wireshark \
extract_input_subframe
extract_input_subframe extract
record: utils.o record.o database.o config.o
$(CC) $(CFLAGS) -o record $^ $(LIBS)
......@@ -21,6 +21,9 @@ extract_input_subframe: extract_input_subframe.o database.o event.o utils.o \
config.o
$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
extract: extract.o database.o event.o utils.o config.o
$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
textlog: utils.o textlog.o database.o event.o handler.o config.o \
event_selector.o view/view.a gui/gui.a logger/logger.a \
filter/filter.a
......@@ -64,7 +67,7 @@ filter/filter.a:
clean:
rm -f *.o core tracer_remote textlog enb ue vcd record replay
rm -f extract_config macpdu2wireshark extract_input_subframe
rm -f extract_config macpdu2wireshark extract_input_subframe extract
cd gui && make clean
cd view && make clean
cd logger && make clean
......
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include "database.h"
#include "event.h"
#include "config.h"
void usage(void)
{
printf(
"usage: [options] <file> <event> <buffer name>\n"
"options:\n"
" -d <database file> this option is mandatory\n"
" -o <output file> this option is mandatory\n"
" -f <name> <value> field 'name' of 'event' has to match 'value'\n"
" type of 'name' must be int\n"
" (you can use several -f options)\n"
);
exit(1);
}
int get_filter_arg(database_event_format *f, char *field, char *type)
{
int i;
for (i = 0; i < f->count; i++)
if (!strcmp(f->name[i], field)) {
if (strcmp(f->type[i], type)) break;
return i;
}
printf("bad field %s, check that it exists and has type '%s'\n",field,type);
exit(1);
}
int main(int n, char **v)
{
char *database_filename = NULL;
void *database;
int i;
int input_event_id;
database_event_format f;
char *file = NULL;
char *output_file = NULL;
FILE *out;
int fd;
char *event_name = NULL;
char *buffer_name = NULL;
char *filter[n];
int filter_arg[n];
int filter_value[n];
int filter_count = 0;
int buffer_arg;
int found;
for (i = 1; i < n; i++) {
if (!strcmp(v[i], "-h") || !strcmp(v[i], "--help")) usage();
if (!strcmp(v[i], "-d"))
{ if (i > n-2) usage(); database_filename = v[++i]; continue; }
if (!strcmp(v[i], "-o"))
{ if (i > n-2) usage(); output_file = v[++i]; continue; }
if (!strcmp(v[i], "-f")) { if (i>n-3) usage();
filter[filter_count] = v[++i];
filter_value[filter_count++] = atoi(v[++i]);
continue;
}
if (file == NULL) { file = v[i]; continue; }
if (event_name == NULL) { event_name = v[i]; continue; }
if (buffer_name == NULL) { buffer_name = v[i]; continue; }
usage();
}
if (file == NULL || event_name == NULL || buffer_name == NULL) usage();
if (database_filename == NULL) {
printf("ERROR: provide a database file (-d)\n");
exit(1);
}
if (output_file == NULL) {
printf("gimme -o <output file>, thanks\n");
exit(1);
}
out = fopen(output_file, "w"); if(out==NULL){perror(output_file);exit(1);}
database = parse_database(database_filename);
load_config_file(database_filename);
input_event_id = event_id_from_name(database, event_name);
f = get_format(database, input_event_id);
buffer_arg = get_filter_arg(&f, buffer_name, "buffer");
for (i = 0; i < filter_count; i++)
filter_arg[i] = get_filter_arg(&f, filter[i], "int");
fd = open(file, O_RDONLY);
if (fd == -1) { perror(file); exit(1); }
found = 0;
while (1) {
char v[T_BUFFER_MAX];
event e;
e = get_event(fd, v, database);
if (e.type == -1) break;
if (e.type != input_event_id) continue;
for (i = 0; i < filter_count; i++)
if (filter_value[i] != e.e[filter_arg[i]].i)
break;
if (i != filter_count)
continue;
if (fwrite(e.e[buffer_arg].b, e.e[buffer_arg].bsize, 1, out) != 1)
{ perror(output_file); exit(1); }
found = 1;
break;
}
if (found == 0) printf("ERROR: event not found\n");
fclose(out);
return 0;
}
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment