GCOV - Varnish Cache


/*-
 * Copyright (c) 2016 Varnish Software AS
 * All rights reserved.
 *
 * Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 */

#include "config.h"

#include <stdint.h>

#include "cache/cache_varnishd.h"

#include "cache/cache_transport.h"
#include "http2/cache_http2.h"

static const char *
h2_panic_error(const struct h2_error_s *e)
{
        if (e == NULL)
                return ("(null)");
        else
                return (e->name);
}

static void
h2_panic_settings(struct vsb *vsb, const struct h2_settings *s)
{
        int cont = 0;

#define H2_SETTING(U,l,...)                     \
        do {                                    \
                if (cont)                       \
                        VSB_printf(vsb, ", ");  \
                cont = 1;                       \
                VSB_printf(vsb, "0x%x", s->l);  \
        } while (0);
#include "tbl/h2_settings.h"
#undef H2_SETTING
}

void
h2_sess_panic(struct vsb *vsb, const struct sess *sp)
{
        uintptr_t *up;
        struct h2_sess *h2;
        struct h2_req *r2;

        AZ(SES_Get_proto_priv(sp, &up));

        AN(up);
        h2 = (void*)*up;
        if (PAN_dump_struct(vsb, h2, H2_SESS_MAGIC, "h2_sess"))
                return;
        VSB_printf(vsb, "refcnt = %d, bogosity = %d, error = %s\n",
            h2->refcnt, h2->bogosity, h2_panic_error(h2->error));
        VSB_printf(vsb,
            "open_streams = %u, highest_stream = %u,"
            " goaway_last_stream = %u,\n",
            h2->open_streams, h2->highest_stream, h2->goaway_last_stream);
        VSB_cat(vsb, "local_settings = {");
        h2_panic_settings(vsb, &h2->local_settings);
        VSB_cat(vsb, "},\n");
        VSB_cat(vsb, "remote_settings = {");
        h2_panic_settings(vsb, &h2->remote_settings);
        VSB_cat(vsb, "},\n");
        VSB_printf(vsb,
            "{rxf_len, rxf_type, rxf_flags, rxf_stream} ="
            " {%u, %u, 0x%x, %u},\n",
            h2->rxf_len, h2->rxf_type, h2->rxf_flags, h2->rxf_stream);
        VTAILQ_FOREACH(r2, &h2->streams, list) {
                if (PAN_dump_struct(vsb, r2, H2_REQ_MAGIC, "stream"))
                        continue;
                VSB_printf(vsb, "id = %u, state = ", r2->stream);
                switch (r2->state) {
#define H2_STREAM(U,sd,d) case H2_S_##U: VSB_printf(vsb, "%s", sd); break;
#include <tbl/h2_stream.h>
                default:
                        VSB_printf(vsb, " 0x%x", r2->state);
                        break;
                }
                VSB_cat(vsb, ",\n");

                VSB_printf(vsb, "h2_sess = %p, scheduled = %d, error = %s,\n",
                    r2->h2sess, r2->scheduled, h2_panic_error(r2->error));
                VSB_printf(vsb, "t_send = %f, t_winupd = %f,\n",
                    r2->t_send, r2->t_winupd);
                VSB_printf(vsb, "t_window = %jd, r_window = %jd,\n",
                    (intmax_t)r2->t_window, (intmax_t)r2->r_window);

                if (!PAN_dump_struct(vsb, r2->rxbuf, H2_RXBUF_MAGIC, "rxbuf")) {
                        VSB_printf(vsb, "stvbuf = %p,\n", r2->rxbuf->stvbuf);
                        VSB_printf(vsb,
                            "{size, tail, head} = {%u, %ju, %ju},\n",
                            r2->rxbuf->size, (uintmax_t)r2->rxbuf->tail,
                            (uintmax_t)r2->rxbuf->head);
                        VSB_indent(vsb, -2);
                        VSB_cat(vsb, "},\n");
                }

                VSB_indent(vsb, -2);
                VSB_cat(vsb, "},\n");
        }
        VSB_indent(vsb, -2);
}

		varnish-cache/bin/varnishd/http2/cache_http2_panic.c
0		/*-
1		* Copyright (c) 2016 Varnish Software AS
2		* All rights reserved.
3		*
4		* Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
5		*
6		* SPDX-License-Identifier: BSD-2-Clause
7		*
8		* Redistribution and use in source and binary forms, with or without
9		* modification, are permitted provided that the following conditions
10		* are met:
11		* 1. Redistributions of source code must retain the above copyright
12		* notice, this list of conditions and the following disclaimer.
13		* 2. Redistributions in binary form must reproduce the above copyright
14		* notice, this list of conditions and the following disclaimer in the
15		* documentation and/or other materials provided with the distribution.
16		*
17		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18		* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20		* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
21		* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22		* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23		* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25		* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26		* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27		* SUCH DAMAGE.
28		*
29		*/
30
31		#include "config.h"
32
33		#include <stdint.h>
34	25
35	0	#include "cache/cache_varnishd.h"
36	0
37	0	#include "cache/cache_transport.h"
38	0	#include "http2/cache_http2.h"
39	25
40	0	static const char *
41	75	h2_panic_error(const struct h2_error_s *e)
42	50	{
43	75	if (e == NULL)
44	75	return ("(null)");
45		else
46	0	return (e->name);
47	75	}
48
49		static void
50	50	h2_panic_settings(struct vsb vsb, const struct h2_settings s)
51		{
52	50	int cont = 0;
53	50
54		#define H2_SETTING(U,l,...) \
55		do { \
56		if (cont) \
57		VSB_printf(vsb, ", "); \
58		cont = 1; \
59		VSB_printf(vsb, "0x%x", s->l); \
60		} while (0);
61		#include "tbl/h2_settings.h"
62		#undef H2_SETTING
63	50	}
64	50
65		void
66	25	h2_sess_panic(struct vsb vsb, const struct sess sp)
67		{
68		uintptr_t *up;
69		struct h2_sess *h2;
70		struct h2_req *r2;
71
72	25	AZ(SES_Get_proto_priv(sp, &up));
73
74	75	AN(up);
75	25	h2 = (void)up;
76	25	if (PAN_dump_struct(vsb, h2, H2_SESS_MAGIC, "h2_sess"))
77	0	return;
78	50	VSB_printf(vsb, "refcnt = %d, bogosity = %d, error = %s\n",
79	25	h2->refcnt, h2->bogosity, h2_panic_error(h2->error));
80	50	VSB_printf(vsb,
81		"open_streams = %u, highest_stream = %u,"
82		" goaway_last_stream = %u,\n",
83	25	h2->open_streams, h2->highest_stream, h2->goaway_last_stream);
84	75	VSB_cat(vsb, "local_settings = {");
85	25	h2_panic_settings(vsb, &h2->local_settings);
86	25	VSB_cat(vsb, "},\n");
87	25	VSB_cat(vsb, "remote_settings = {");
88	25	h2_panic_settings(vsb, &h2->remote_settings);
89	25	VSB_cat(vsb, "},\n");
90	50	VSB_printf(vsb,
91		"{rxf_len, rxf_type, rxf_flags, rxf_stream} ="
92		" {%u, %u, 0x%x, %u},\n",
93	25	h2->rxf_len, h2->rxf_type, h2->rxf_flags, h2->rxf_stream);
94	125	VTAILQ_FOREACH(r2, &h2->streams, list) {
95	50	if (PAN_dump_struct(vsb, r2, H2_REQ_MAGIC, "stream"))
96	0	continue;
97	50	VSB_printf(vsb, "id = %u, state = ", r2->stream);
98	50	switch (r2->state) {
99		#define H2_STREAM(U,sd,d) case H2_S_##U: VSB_printf(vsb, "%s", sd); break;
100		#include <tbl/h2_stream.h>
101		default:
102	0	VSB_printf(vsb, " 0x%x", r2->state);
103	0	break;
104		}
105	50	VSB_cat(vsb, ",\n");
106
107	100	VSB_printf(vsb, "h2_sess = %p, scheduled = %d, error = %s,\n",
108	50	r2->h2sess, r2->scheduled, h2_panic_error(r2->error));
109	100	VSB_printf(vsb, "t_send = %f, t_winupd = %f,\n",
110	50	r2->t_send, r2->t_winupd);
111	100	VSB_printf(vsb, "t_window = %jd, r_window = %jd,\n",
112	50	(intmax_t)r2->t_window, (intmax_t)r2->r_window);
113
114	50	if (!PAN_dump_struct(vsb, r2->rxbuf, H2_RXBUF_MAGIC, "rxbuf")) {
115	0	VSB_printf(vsb, "stvbuf = %p,\n", r2->rxbuf->stvbuf);
116	0	VSB_printf(vsb,
117		"{size, tail, head} = {%u, %ju, %ju},\n",
118	0	r2->rxbuf->size, (uintmax_t)r2->rxbuf->tail,
119	0	(uintmax_t)r2->rxbuf->head);
120	0	VSB_indent(vsb, -2);
121	0	VSB_cat(vsb, "},\n");
122	0	}
123
124	50	VSB_indent(vsb, -2);
125	50	VSB_cat(vsb, "},\n");
126	50	}
127	25	VSB_indent(vsb, -2);
128	25	}