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litespeed-quic/tests/test_di_nocopy.c
Dmitri Tikhonov 06b2a2363e Release 2.27.1 
- [API] New knob to set outgoing packet batch size.
- Aborted connection now become tickable immediately.
- Abort connection when HTTP/3 frame cannot be opened (can only happen
  when malloc fails).
2021-01-06 09:00:05 -05:00

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/* Copyright (c) 2017 - 2021 LiteSpeed Technologies Inc. See LICENSE. */
/*
* Test the "nocopy" data in stream
*/
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <sys/queue.h>
#ifdef WIN32
#include "getopt.h"
#else
#include <unistd.h>
#endif
#include "lsquic.h"
#include "lsquic_int_types.h"
#include "lsquic_sfcw.h"
#include "lsquic_rtt.h"
#include "lsquic_conn_flow.h"
#include "lsquic_varint.h"
#include "lsquic_hq.h"
#include "lsquic_hash.h"
#include "lsquic_stream.h"
#include "lsquic_conn.h"
#include "lsquic_conn_public.h"
#include "lsquic_malo.h"
#include "lsquic_packet_common.h"
#include "lsquic_packet_in.h"
#include "lsquic_packet_out.h"
#include "lsquic_mm.h"
#include "lsquic_logger.h"
#include "lsquic_data_in_if.h"
struct nocopy_test
{
int lineno;
/* Setup: initial set of frames to insert and read until some offset */
unsigned n_init_frames;
struct data_frame initial_frames[5];
unsigned read_until;
/* Test: data frame to insert and expected insert result */
struct data_frame data_frame;
enum ins_frame ins;
};
#define F(off, size, fin) { .df_offset = (off), .df_fin = (fin), .df_size = (size), }
static const struct nocopy_test tests[] =
{
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 300, 0), },
.read_until = 300,
.data_frame = F(200, 100, 0),
.ins = INS_FRAME_DUP,
},
{ .lineno = __LINE__,
.n_init_frames = 2,
.initial_frames = { F(0, 300, 0), F(300, 100, 0), },
.read_until = 300,
.data_frame = F(200, 100, 0),
.ins = INS_FRAME_DUP,
},
{ .lineno = __LINE__,
.n_init_frames = 2,
.initial_frames = { F(0, 300, 0), F(300, 0, 1), },
.read_until = 300,
.data_frame = F(200, 100, 1),
.ins = INS_FRAME_DUP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 301, 0), },
.read_until = 301,
.data_frame = F(200, 100, 1),
.ins = INS_FRAME_ERR,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 400, 0), },
.read_until = 301,
.data_frame = F(200, 100, 0),
.ins = INS_FRAME_DUP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(200, 100, 1), },
.read_until = 0,
.data_frame = F(200, 50, 1),
.ins = INS_FRAME_ERR,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(200, 100, 1), },
.read_until = 0,
.data_frame = F(200, 150, 1),
.ins = INS_FRAME_ERR,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(200, 100, 1), },
.read_until = 0,
.data_frame = F(200, 101, 0),
.ins = INS_FRAME_ERR,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(200, 100, 1), },
.read_until = 0,
.data_frame = F(500, 1, 0),
.ins = INS_FRAME_ERR,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 100, 0), },
.read_until = 100,
.data_frame = F(0, 100, 1),
.ins = INS_FRAME_OVERLAP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 100, 1), },
.read_until = 100,
.data_frame = F(0, 100, 1),
.ins = INS_FRAME_DUP,
},
/* TODO: Case 'F' and 'L' -- remove "case 'F'" */
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 100, 0), },
.read_until = 100,
.data_frame = F(0, 100, 0),
.ins = INS_FRAME_DUP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 100, 1), },
.read_until = 10,
.data_frame = F(0, 100, 0),
.ins = INS_FRAME_DUP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 100, 0), },
.read_until = 10,
.data_frame = F(0, 100, 1),
.ins = INS_FRAME_OVERLAP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 100, 0), },
.read_until = 100,
.data_frame = F(100, 0, 0),
.ins = INS_FRAME_DUP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 100, 0), },
.read_until = 0,
.data_frame = F(50, 100, 0),
.ins = INS_FRAME_OVERLAP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 100, 1), },
.read_until = 0,
.data_frame = F(50, 100, 0),
.ins = INS_FRAME_ERR,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(100, 100, 0), },
.read_until = 0,
.data_frame = F(50, 100, 0),
.ins = INS_FRAME_OVERLAP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(100, 100, 0), },
.read_until = 0,
.data_frame = F(50, 100, 1),
.ins = INS_FRAME_OVERLAP, /* This is really an error,
* but we ignore it.
*/
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(100, 100, 1), },
.read_until = 0,
.data_frame = F(50, 100, 0),
.ins = INS_FRAME_OVERLAP,
},
{ .lineno = __LINE__,
.n_init_frames = 1,
.initial_frames = { F(0, 100, 1), },
.read_until = 60,
.data_frame = F(50, 2, 0),
.ins = INS_FRAME_DUP,
},
{ .lineno = __LINE__,
.n_init_frames = 2,
.initial_frames = { F(0, 100, 0), F(200, 100, 0), },
.read_until = 0,
.data_frame = F(50, 200, 0),
.ins = INS_FRAME_OVERLAP,
},
{ .lineno = __LINE__,
.n_init_frames = 2,
.initial_frames = { F(0, 100, 0), F(200, 100, 0), },
.read_until = 0,
.data_frame = F(100, 100, 0),
.ins = INS_FRAME_OK,
},
{ .lineno = __LINE__,
.n_init_frames = 2,
.initial_frames = { F(0, 100, 0), F(200, 100, 0), },
.read_until = 0,
.data_frame = F(100, 100, 1),
.ins = INS_FRAME_OK, /* Ignore another error */
},
{ .lineno = __LINE__,
.n_init_frames = 2,
.initial_frames = { F(0, 60, 0), F(60, 60, 0), },
.read_until = 120,
.data_frame = F(0, 180, 0),
.ins = INS_FRAME_OVERLAP,
},
{ .lineno = __LINE__,
.n_init_frames = 3,
.initial_frames = { F(0, 60, 0), F(60, 60, 0), F(180, 60, 0), },
.read_until = 120,
.data_frame = F(0, 180, 0),
.ins = INS_FRAME_OVERLAP,
},
};
static void
run_di_nocopy_test (const struct nocopy_test *test)
{
struct lsquic_mm mm;
struct lsquic_conn_public conn_pub;
struct lsquic_conn conn;
struct stream_frame *frame;
struct data_in *di;
struct data_frame *data_frame;
enum ins_frame ins;
unsigned i;
unsigned nread, n_to_read;
LSQ_NOTICE("running test on line %d", test->lineno);
lsquic_mm_init(&mm);
memset(&conn, 0, sizeof(conn));
conn_pub.lconn = &conn;
conn_pub.mm = &mm;
di = lsquic_data_in_nocopy_new(&conn_pub, 3);
for (i = 0; i < test->n_init_frames; ++i)
{
frame = lsquic_malo_get(mm.malo.stream_frame);
frame->packet_in = lsquic_mm_get_packet_in(&mm);
frame->packet_in->pi_refcnt = 1;
frame->data_frame = test->initial_frames[i];
ins = di->di_if->di_insert_frame(di, frame, 0);
assert(INS_FRAME_OK == ins); /* Self-test */
}
nread = 0;
while (nread < test->read_until)
{
data_frame = di->di_if->di_get_frame(di, nread);
assert(data_frame); /* Self-check */
n_to_read = test->read_until - nread > (unsigned) data_frame->df_size - data_frame->df_read_off
? (unsigned) data_frame->df_size - data_frame->df_read_off : test->read_until - nread;
data_frame->df_read_off += n_to_read;
nread += n_to_read;
if (data_frame->df_read_off == data_frame->df_size)
di->di_if->di_frame_done(di, data_frame);
else
{
assert(nread == test->read_until);
break;
}
}
frame = lsquic_malo_get(mm.malo.stream_frame);
frame->packet_in = lsquic_mm_get_packet_in(&mm);
frame->packet_in->pi_refcnt = 1;
frame->data_frame = test->data_frame;
ins = di->di_if->di_insert_frame(di, frame, test->read_until);
assert(test->ins == ins);
di->di_if->di_destroy(di);
lsquic_mm_cleanup(&mm);
}
int
main (int argc, char **argv)
{
const struct nocopy_test *test;
int opt;
lsquic_log_to_fstream(stderr, LLTS_NONE);
while (-1 != (opt = getopt(argc, argv, "l:")))
{
switch (opt)
{
case 'l':
lsquic_logger_lopt(optarg);
break;
default:
return 1;
}
}
for (test = tests; test < tests + sizeof(tests) / sizeof(tests[0]); ++test)
run_di_nocopy_test(test);
return 0;
}
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