int32_t _new_managers( struct iolayer * self )
{
uint8_t i = 0;
uint32_t sessions_per_thread = self->nclients/self->nthreads;
// 会话管理器,
// 采用cacheline对齐以提高访问速度
self->managers = calloc( (self->nthreads)<<3, sizeof(void *) );
if ( self->managers == NULL )
{
return -1;
}
for ( i = 0; i < self->nthreads; ++i )
{
uint32_t index = i<<3;
self->managers[index] = session_manager_create( i, sessions_per_thread );
if ( self->managers[index] == NULL )
{
return -2;
}
}
return 0;
}
int main(int argc, char *argv[])
{
libtrace_t *trace;
libtrace_packet_t *packet;
libtrace_filter_t *filter=NULL;
session_manager_t *sm;
uint64_t f;
while(1) {
int option_index;
struct option long_options[] = {
{ "filter", 1, 0, 'f' },
{ "interval", 1, 0, 'i' },
{ "count", 1, 0, 'c' },
{ "exit", 1, 0, 'e' },
{ "relative", 0, 0, 'r' },
{ "help", 0, 0, 'h' },
{ "libtrace-help",0, 0, 'H' },
{ NULL, 0, 0, 0 }
};
int c= getopt_long(argc, argv, "c:e:f:i:hHr",
long_options, &option_index);
if (c==-1)
break;
switch (c) {
case 'f':
filter=trace_create_filter(optarg);
break;
case 'i':
packet_interval=atof(optarg);
break;
case 'c':
packet_count=atoi(optarg);
packet_interval=UINT32_MAX; // make sure only one is defined
break;
case 'e':
report_periods=atoi(optarg);
break;
case 'r':
report_rel_time = 1;
break;
case 'H':
trace_help();
return 1;
default:
fprintf(stderr,"Unknown option: %c\n",c);
/* FALL THRU */
case 'h':
usage(argv[0]);
return 1;
}
}
if (optind>=argc) {
fprintf(stderr,"Missing input uri\n");
usage(argv[0]);
return 1;
}
while (optind<argc) {
// create tcp session manager
sm = session_manager_create();
// create and register the data-ack based RTT module
session_manager_register_module(sm,rtt_n_sequence_module());
fprintf(stderr, "Processing %s\n",argv[optind]);
trace = trace_create(argv[optind]);
++optind;
if (trace_is_err(trace)) {
trace_perror(trace,"Opening trace file");
return 1;
}
if (filter && trace_config(trace,TRACE_OPTION_FILTER,filter)==1) {
trace_perror(trace,"Configuring filter");
}
if (trace_start(trace)) {
trace_perror(trace,"Starting trace");
trace_destroy(trace);
return 1;
}
packet = trace_create_packet();
print_report_hdr();
reset_report();
last_report_ts = 0;
last_packet_ts = 0;
while (trace_read_packet(trace,packet)>0) {
per_packet(packet,session_manager_update(sm,packet));
if (report_periods != UINT64_MAX && reported >= report_periods) {
break;
}
}
// remaining pkts (or all if no period set)
if ((reports[OUT].count+reports[IN].count) > 0 ||
(packet_interval == UINT32_MAX && packet_count == UINT64_MAX)) {
double ts = trace_get_seconds(packet);
if (report_rel_time) {
print_report(ts-last_report_ts);
} else {
print_report(ts);
}
}
trace_destroy_packet(packet);
if (trace_is_err(trace)) {
trace_perror(trace,"Reading packets");
}
// some stats
f=trace_get_received_packets(trace);
if (f!=UINT64_MAX)
fprintf(stderr,"%" PRIu64 " packets on input\n",f);
f=trace_get_filtered_packets(trace);
if (f!=UINT64_MAX)
fprintf(stderr,"%" PRIu64 " packets filtered\n",f);
f=trace_get_dropped_packets(trace);
if (f!=UINT64_MAX)
fprintf(stderr,"%" PRIu64 " packets dropped\n",f);
f=trace_get_accepted_packets(trace);
if (f!=UINT64_MAX)
fprintf(stderr,"%" PRIu64 " packets accepted\n",f);
trace_destroy(trace);
session_manager_destroy(sm);
}
return 0;
}
