GCOV - Varnish Cache


/*-
 * Copyright (c) 2006 Verdens Gang AS
 * Copyright (c) 2006-2015 Varnish Software AS
 * All rights reserved.
 *
 * Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
 * Author: Martin Blix Grydeland <martin@varnish-software.com>
 *
 * 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 <sys/stat.h>

#include <fnmatch.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "vdef.h"
#include "vas.h"
#include "miniobj.h"
#include "vqueue.h"
#include "vjsn.h"
#include "vsb.h"
#include "vsc_priv.h"
#include "vmb.h"

#include "vapi/vsc.h"
#include "vapi/vsm.h"

struct vsc_sf_mode {
        const char              *name;
        unsigned                include;
        unsigned                fail;
        unsigned                append;
};

static const struct vsc_sf_mode VSC_SF_INCLUDE[1] = {{"include", 1, 1, 1}};
static const struct vsc_sf_mode VSC_SF_EXCLUDE[1] = {{"exclude", 0, 0, 1}};
static const struct vsc_sf_mode VSC_SF_REQUIRE[1] = {{"require", 1, 0, 0}};

struct vsc_sf {
        unsigned                        magic;
#define VSC_SF_MAGIC                    0x558478dd
        VTAILQ_ENTRY(vsc_sf)            list;
        char                            *pattern;
        const struct vsc_sf_mode        *mode;
};

VTAILQ_HEAD(vsc_sf_head, vsc_sf);

struct vsc_pt {
        struct VSC_point        point;
        char                    *name;
};

struct vsc_seg {
        unsigned                magic;
#define VSC_SEG_MAGIC           0x801177d4
        VTAILQ_ENTRY(vsc_seg)   list;
        struct vsm_fantom       fantom[1];
        struct vsc_head         *head;
        char                    *body;

        struct vjsn             *vj;

        unsigned                npoints;
        struct vsc_pt           *points;
        int                     exposed;
};

struct vsc {
        unsigned                magic;
#define VSC_MAGIC               0x3373554a

        unsigned                raw;
        struct vsc_sf_head      sf_list;
        VTAILQ_HEAD(,vsc_seg)   segs;

        VSC_new_f               *fnew;
        VSC_destroy_f           *fdestroy;
        void                    *priv;
};

/*--------------------------------------------------------------------
 * Build the static level, type and point descriptions
 */

enum vsc_levels {
#define VSC_LEVEL_F(v,l,e,d) v,
#include "tbl/vsc_levels.h"
};

static const struct VSC_level_desc levels[] = {
#define VSC_LEVEL_F(v,l,e,d) [v] = {#v, l, e, d},
#include "tbl/vsc_levels.h"
};

static const ssize_t nlevels = sizeof(levels)/sizeof(*levels);

/*--------------------------------------------------------------------*/

struct vsc *
VSC_New(void)
{
        struct vsc *vsc;

        ALLOC_OBJ(vsc, VSC_MAGIC);
        if (vsc == NULL)
                return (vsc);
        VTAILQ_INIT(&vsc->sf_list);
        VTAILQ_INIT(&vsc->segs);
        return (vsc);
}

/*--------------------------------------------------------------------*/

static int
vsc_sf_arg(struct vsc *vsc, const char *glob, const struct vsc_sf_mode *mode)
{
        struct vsc_sf *sf;

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
        AN(glob);
        AN(mode);

        ALLOC_OBJ(sf, VSC_SF_MAGIC);
        AN(sf);
        REPLACE(sf->pattern, glob);
        sf->mode = mode;
        AN(mode->name);
        if (mode->append)
                VTAILQ_INSERT_TAIL(&vsc->sf_list, sf, list);
        else
                VTAILQ_INSERT_HEAD(&vsc->sf_list, sf, list);
        return (1);
}

static int
vsc_f_arg(struct vsc *vsc, const char *opt)
{

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
        AN(opt);

        if (opt[0] == '^')
                return (vsc_sf_arg(vsc, opt + 1, VSC_SF_EXCLUDE));
        return (vsc_sf_arg(vsc, opt, VSC_SF_INCLUDE));
}

/*--------------------------------------------------------------------*/

int
VSC_Arg(struct vsc *vsc, char arg, const char *opt)
{

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);

        switch (arg) {
        case 'I': return (vsc_sf_arg(vsc, opt, VSC_SF_INCLUDE));
        case 'X': return (vsc_sf_arg(vsc, opt, VSC_SF_EXCLUDE));
        case 'R': return (vsc_sf_arg(vsc, opt, VSC_SF_REQUIRE));
        case 'f': return (vsc_f_arg(vsc, opt));
        case 'r': vsc->raw = !vsc->raw; return (1);
        default: return (0);
        }
}

unsigned
VSC_IsRaw(const struct vsc *vsc)
{

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
        return (vsc->raw);
}

/*--------------------------------------------------------------------
 */

static int
vsc_filter(const struct vsc *vsc, const char *nm)
{
        struct vsc_sf *sf;
        unsigned res = 0;

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
        VTAILQ_FOREACH(sf, &vsc->sf_list, list) {
                if (!fnmatch(sf->pattern, nm, 0))
                        return (!sf->mode->include);
                res |= sf->mode->fail;
        }
        return (res);
}

/*--------------------------------------------------------------------
 */

static void
vsc_clean_point(struct vsc_pt *point)
{
        REPLACE(point->name, NULL);
}

static void
vsc_fill_point(const struct vsc *vsc, const struct vsc_seg *seg,
    const struct vjsn_val *vv, struct vsb *vsb, struct vsc_pt *point)
{
        struct vjsn_val *vt;

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
        memset(point, 0, sizeof *point);

        vt = vjsn_child(vv, "name");
        AN(vt);
        assert(vjsn_is_string(vt));

        VSB_clear(vsb);
        VSB_printf(vsb, "%s.%s", seg->fantom->ident, vt->value);
        AZ(VSB_finish(vsb));

        if (vsc_filter(vsc, VSB_data(vsb)))
                return;

        point->name = strdup(VSB_data(vsb));
        AN(point->name);
        point->point.name = point->name;

#define DOF(n, k)                               \
        vt = vjsn_child(vv, k);                 \
        AN(vt);                                 \
        assert(vjsn_is_string(vt));             \
        point->point.n = vt->value;

        DOF(ctype, "ctype");
        DOF(sdesc, "oneliner");
        DOF(ldesc, "docs");
#undef DOF
        vt = vjsn_child(vv, "type");
        AN(vt);
        assert(vjsn_is_string(vt));

        if (!strcmp(vt->value, "counter")) {
                point->point.semantics = 'c';
        } else if (!strcmp(vt->value, "gauge")) {
                point->point.semantics = 'g';
        } else if (!strcmp(vt->value, "bitmap")) {
                point->point.semantics = 'b';
        } else {
                point->point.semantics = '?';
        }

        vt = vjsn_child(vv, "format");
        AN(vt);
        assert(vjsn_is_string(vt));

        if (!strcmp(vt->value, "integer")) {
                point->point.format = 'i';
        } else if (!strcmp(vt->value, "bytes")) {
                point->point.format = 'B';
        } else if (!strcmp(vt->value, "bitmap")) {
                point->point.format = 'b';
        } else if (!strcmp(vt->value, "duration")) {
                point->point.format = 'd';
        } else {
                point->point.format = '?';
        }

        vt = vjsn_child(vv, "level");
        AN(vt);
        assert(vjsn_is_string(vt));

        if (!strcmp(vt->value, "info"))  {
                point->point.level = &levels[info];
        } else if (!strcmp(vt->value, "diag")) {
                point->point.level = &levels[diag];
        } else if (!strcmp(vt->value, "debug")) {
                point->point.level = &levels[debug];
        } else {
                WRONG("Illegal level");
        }

        vt = vjsn_child(vv, "index");
        AN(vt);

        point->point.ptr = (volatile void*)(seg->body + atoi(vt->value));
        point->point.raw = vsc->raw;
}

static void
vsc_del_seg(const struct vsc *vsc, struct vsm *vsm, struct vsc_seg **spp)
{
        unsigned u;
        struct vsc_pt *pp;
        struct vsc_seg *sp;

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
        TAKE_OBJ_NOTNULL(sp, spp, VSC_SEG_MAGIC);
        AZ(VSM_Unmap(vsm, sp->fantom));
        if (sp->vj != NULL) {
                vjsn_delete(&sp->vj);
        } else {
                pp = sp->points;
                for (u = 0; u < sp->npoints; u++, pp++)
                        vsc_clean_point(pp);
                free(sp->points);
        }
        FREE_OBJ(sp);
}

static struct vsc_seg *
vsc_add_seg(const struct vsc *vsc, struct vsm *vsm, const struct vsm_fantom *fp)
{
        struct vsc_seg *sp, *spd;
        const char *e;
        struct vjsn_val *vv, *vve;
        struct vsb *vsb;
        struct vsc_pt *pp;

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);

        ALLOC_OBJ(sp, VSC_SEG_MAGIC);
        AN(sp);
        *sp->fantom = *fp;
        if (VSM_Map(vsm, sp->fantom)) {
                /*
                 * If the seg was removed between our call to VSM_Status()
                 * and now, we won't be able to map it.
                 */
                FREE_OBJ(sp);
                return (NULL);
        }
        sp->head = sp->fantom->b;
        if (sp->head->ready == 0) {
                VRMB();
                usleep(100000);
        }
        assert(sp->head->ready > 0);
        sp->body = (char*)sp->fantom->b + sp->head->body_offset;

        if (!strcmp(fp->category, VSC_CLASS)) {
                VTAILQ_FOREACH(spd, &vsc->segs, list)
                        if (spd->head->doc_id == sp->head->doc_id)
                                break;
                AN(spd);
                // XXX: Refcount ?
                vve = vjsn_child(spd->vj->value, "elements");
                AN(vve);
                sp->npoints = strtoul(vve->value, NULL, 0);
                sp->points = calloc(sp->npoints, sizeof *sp->points);
                AN(sp->points);
                vsb = VSB_new_auto();
                AN(vsb);
                vve = vjsn_child(spd->vj->value, "elem");
                AN(vve);
                pp = sp->points;
                VTAILQ_FOREACH(vv, &vve->children, list) {
                        vsc_fill_point(vsc, sp, vv, vsb, pp);
                        pp++;
                }
                VSB_destroy(&vsb);
                return (sp);
        }
        assert(!strcmp(fp->category, VSC_DOC_CLASS));
        sp->vj = vjsn_parse(sp->body, &e);
        XXXAZ(e);
        AN(sp->vj);
        return (sp);
}

/*--------------------------------------------------------------------
 */

static void
vsc_expose(const struct vsc *vsc, struct vsc_seg *sp, int del)
{
        struct vsc_pt *pp;
        unsigned u;
        int expose;

        if (vsc->fnew != NULL && !sp->exposed &&
            !del && sp->head->ready == 1)
                expose = 1;
        else if (vsc->fdestroy != NULL && sp->exposed &&
            (del || sp->head->ready == 2))
                expose = 0;
        else
                return;

        pp = sp->points;
        for (u = 0; u < sp->npoints; u++, pp++) {
                if (pp->name == NULL)
                        continue;
                if (expose)
                        pp->point.priv = vsc->fnew(vsc->priv, &pp->point);
                else
                        vsc->fdestroy(vsc->priv, &pp->point);
        }
        sp->exposed = expose;
}

/*--------------------------------------------------------------------
 */

static int
vsc_iter_seg(const struct vsc *vsc, const struct vsc_seg *sp,
    VSC_iter_f *fiter, void *priv)
{
        unsigned u;
        int i = 0;
        struct vsc_pt *pp;

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
        CHECK_OBJ_NOTNULL(sp, VSC_SEG_MAGIC);
        AN(fiter);
        pp = sp->points;
        for (u = 0; u < sp->npoints && i == 0; u++, pp++) {
                if (pp->name != NULL)
                        i = fiter(priv, &pp->point);
        }
        return (i);
}

int
VSC_Iter(struct vsc *vsc, struct vsm *vsm, VSC_iter_f *fiter, void *priv)
{
        struct vsm_fantom ifantom;
        struct vsc_seg *sp, *sp2;
        int i = 0;

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
        AN(vsm);
        sp = VTAILQ_FIRST(&vsc->segs);
        VSM_FOREACH(&ifantom, vsm) {
                AN(ifantom.category);
                if (strcmp(ifantom.category, VSC_CLASS) &&
                    strcmp(ifantom.category, VSC_DOC_CLASS))
                        continue;
                while (sp != NULL &&
                    (strcmp(ifantom.ident, sp->fantom->ident) ||
                    VSM_StillValid(vsm, sp->fantom) != VSM_valid)) {
                        sp2 = sp;
                        sp = VTAILQ_NEXT(sp, list);
                        VTAILQ_REMOVE(&vsc->segs, sp2, list);
                        vsc_expose(vsc, sp2, 1);
                        vsc_del_seg(vsc, vsm, &sp2);
                }
                if (sp == NULL) {
                        sp = vsc_add_seg(vsc, vsm, &ifantom);
                        if (sp != NULL) {
                                VTAILQ_INSERT_TAIL(&vsc->segs, sp, list);
                                vsc_expose(vsc, sp, 0);
                        }
                } else {
                        vsc_expose(vsc, sp, 0);
                }
                if (sp != NULL) {
                        if (fiter != NULL && sp->head->ready < 2)
                                i = vsc_iter_seg(vsc, sp, fiter, priv);
                        sp = VTAILQ_NEXT(sp, list);
                }

                if (i)
                        break;
        }
        while (sp != NULL) {
                sp2 = sp;
                sp = VTAILQ_NEXT(sp, list);
                VTAILQ_REMOVE(&vsc->segs, sp2, list);
                vsc_expose(vsc, sp2, 1);
                vsc_del_seg(vsc, vsm, &sp2);
        }
        return (i);
}

/*--------------------------------------------------------------------
 */

void
VSC_State(struct vsc *vsc, VSC_new_f *fn, VSC_destroy_f *fd, void *priv)
{
        struct vsc_seg *sp;

        CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
        assert((fn == NULL && fd == NULL) || (fn != NULL && fd != NULL));
        if (fd == NULL) {
                VTAILQ_FOREACH(sp, &vsc->segs, list)
                        vsc_expose(vsc, sp, 1);
        }
        vsc->fnew = fn;
        vsc->fdestroy = fd;
        vsc->priv = priv;
}

/*--------------------------------------------------------------------
 */

const struct VSC_level_desc *
VSC_ChangeLevel(const struct VSC_level_desc *old, int chg)
{
        int i;

        if (old == NULL)
                old = &levels[0];
        for (i = 0; i < nlevels; i++)
                if (old == &levels[i])
                        break;
        if (i == nlevels)
                i = 0;

        i += chg;
        if (i >= nlevels)
                i = nlevels - 1;
        if (i < 0)
                i = 0;
        return (&levels[i]);
}

/*--------------------------------------------------------------------*/

void
VSC_Destroy(struct vsc **vscp, struct vsm *vsm)
{
        struct vsc *vsc;
        struct vsc_sf *sf, *sf2;
        struct vsc_seg *sp, *sp2;

        TAKE_OBJ_NOTNULL(vsc, vscp, VSC_MAGIC);

        VTAILQ_FOREACH_SAFE(sf, &vsc->sf_list, list, sf2) {
                CHECK_OBJ_NOTNULL(sf, VSC_SF_MAGIC);
                VTAILQ_REMOVE(&vsc->sf_list, sf, list);
                free(sf->pattern);
                FREE_OBJ(sf);
        }
        VTAILQ_FOREACH_SAFE(sp, &vsc->segs, list, sp2) {
                VTAILQ_REMOVE(&vsc->segs, sp, list);
                vsc_expose(vsc, sp, 1);
                vsc_del_seg(vsc, vsm, &sp);
        }
        FREE_OBJ(vsc);
}


		varnish-cache/lib/libvarnishapi/vsc.c
0		/*-
1		* Copyright (c) 2006 Verdens Gang AS
2		* Copyright (c) 2006-2015 Varnish Software AS
3		* All rights reserved.
4		*
5		* Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
6		* Author: Martin Blix Grydeland <martin@varnish-software.com>
7		*
8		* SPDX-License-Identifier: BSD-2-Clause
9		*
10		* Redistribution and use in source and binary forms, with or without
11		* modification, are permitted provided that the following conditions
12		* are met:
13		* 1. Redistributions of source code must retain the above copyright
14		* notice, this list of conditions and the following disclaimer.
15		* 2. Redistributions in binary form must reproduce the above copyright
16		* notice, this list of conditions and the following disclaimer in the
17		* documentation and/or other materials provided with the distribution.
18		*
19		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20		* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22		* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
23		* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24		* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25		* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27		* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28		* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29		* SUCH DAMAGE.
30		*/
31
32		#include "config.h"
33
34		#include <sys/stat.h>
35
36		#include <fnmatch.h>
37		#include <stdint.h>
38		#include <stdio.h>
39		#include <stdlib.h>
40		#include <string.h>
41		#include <unistd.h>
42
43		#include "vdef.h"
44		#include "vas.h"
45		#include "miniobj.h"
46		#include "vqueue.h"
47		#include "vjsn.h"
48		#include "vsb.h"
49		#include "vsc_priv.h"
50		#include "vmb.h"
51
52		#include "vapi/vsc.h"
53		#include "vapi/vsm.h"
54
55		struct vsc_sf_mode {
56		const char *name;
57		unsigned include;
58		unsigned fail;
59		unsigned append;
60		};
61
62		static const struct vsc_sf_mode VSC_SF_INCLUDE[1] = {{"include", 1, 1, 1}};
63		static const struct vsc_sf_mode VSC_SF_EXCLUDE[1] = {{"exclude", 0, 0, 1}};
64		static const struct vsc_sf_mode VSC_SF_REQUIRE[1] = {{"require", 1, 0, 0}};
65
66		struct vsc_sf {
67		unsigned magic;
68		#define VSC_SF_MAGIC 0x558478dd
69		VTAILQ_ENTRY(vsc_sf) list;
70		char *pattern;
71		const struct vsc_sf_mode *mode;
72		};
73
74		VTAILQ_HEAD(vsc_sf_head, vsc_sf);
75
76		struct vsc_pt {
77		struct VSC_point point;
78		char *name;
79		};
80
81		struct vsc_seg {
82		unsigned magic;
83		#define VSC_SEG_MAGIC 0x801177d4
84		VTAILQ_ENTRY(vsc_seg) list;
85		struct vsm_fantom fantom[1];
86		struct vsc_head *head;
87		char *body;
88
89		struct vjsn *vj;
90
91		unsigned npoints;
92		struct vsc_pt *points;
93		int exposed;
94		};
95
96		struct vsc {
97		unsigned magic;
98		#define VSC_MAGIC 0x3373554a
99
100		unsigned raw;
101		struct vsc_sf_head sf_list;
102		VTAILQ_HEAD(,vsc_seg) segs;
103
104		VSC_new_f *fnew;
105		VSC_destroy_f *fdestroy;
106		void *priv;
107		};
108
109		/*--------------------------------------------------------------------
110		* Build the static level, type and point descriptions
111		*/
112
113		enum vsc_levels {
114		#define VSC_LEVEL_F(v,l,e,d) v,
115		#include "tbl/vsc_levels.h"
116		};
117
118		static const struct VSC_level_desc levels[] = {
119		#define VSC_LEVEL_F(v,l,e,d) [v] = {#v, l, e, d},
120		#include "tbl/vsc_levels.h"
121		};
122
123		static const ssize_t nlevels = sizeof(levels)/sizeof(*levels);
124
125		/--------------------------------------------------------------------/
126
127		struct vsc *
128	23550	VSC_New(void)
129		{
130		struct vsc *vsc;
131
132	23550	ALLOC_OBJ(vsc, VSC_MAGIC);
133	23550	if (vsc == NULL)
134	0	return (vsc);
135	23550	VTAILQ_INIT(&vsc->sf_list);
136	23550	VTAILQ_INIT(&vsc->segs);
137	23550	return (vsc);
138	23550	}
139
140		/--------------------------------------------------------------------/
141
142		static int
143	900	vsc_sf_arg(struct vsc vsc, const char glob, const struct vsc_sf_mode *mode)
144		{
145		struct vsc_sf *sf;
146
147	900	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
148	900	AN(glob);
149	900	AN(mode);
150
151	900	ALLOC_OBJ(sf, VSC_SF_MAGIC);
152	900	AN(sf);
153	900	REPLACE(sf->pattern, glob);
154	900	sf->mode = mode;
155	900	AN(mode->name);
156	900	if (mode->append)
157	700	VTAILQ_INSERT_TAIL(&vsc->sf_list, sf, list);
158		else
159	200	VTAILQ_INSERT_HEAD(&vsc->sf_list, sf, list);
160	900	return (1);
161		}
162
163		static int
164	500	vsc_f_arg(struct vsc vsc, const char opt)
165		{
166
167	500	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
168	500	AN(opt);
169
170	500	if (opt[0] == '^')
171	125	return (vsc_sf_arg(vsc, opt + 1, VSC_SF_EXCLUDE));
172	375	return (vsc_sf_arg(vsc, opt, VSC_SF_INCLUDE));
173	500	}
174
175		/--------------------------------------------------------------------/
176
177		int
178	900	VSC_Arg(struct vsc vsc, char arg, const char opt)
179		{
180
181	900	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
182
183	900	switch (arg) {
184	175	case 'I': return (vsc_sf_arg(vsc, opt, VSC_SF_INCLUDE));
185	25	case 'X': return (vsc_sf_arg(vsc, opt, VSC_SF_EXCLUDE));
186	200	case 'R': return (vsc_sf_arg(vsc, opt, VSC_SF_REQUIRE));
187	500	case 'f': return (vsc_f_arg(vsc, opt));
188	0	case 'r': vsc->raw = !vsc->raw; return (1);
189	0	default: return (0);
190		}
191	900	}
192
193		unsigned
194	150	VSC_IsRaw(const struct vsc *vsc)
195		{
196
197	150	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
198	150	return (vsc->raw);
199		}
200
201		/*--------------------------------------------------------------------
202		*/
203
204		static int
205	1355708	vsc_filter(const struct vsc vsc, const char nm)
206		{
207		struct vsc_sf *sf;
208	1355708	unsigned res = 0;
209
210	1355708	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
211	1620783	VTAILQ_FOREACH(sf, &vsc->sf_list, list) {
212	270025	if (!fnmatch(sf->pattern, nm, 0))
213	4950	return (!sf->mode->include);
214	265075	res \|= sf->mode->fail;
215	265075	}
216	1350758	return (res);
217	1355708	}
218
219		/*--------------------------------------------------------------------
220		*/
221
222		static void
223	1173458	vsc_clean_point(struct vsc_pt *point)
224		{
225	1173458	REPLACE(point->name, NULL);
226	1173458	}
227
228		static void
229	1355708	vsc_fill_point(const struct vsc vsc, const struct vsc_seg seg,
230		const struct vjsn_val vv, struct vsb vsb, struct vsc_pt *point)
231		{
232		struct vjsn_val *vt;
233
234	1355708	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
235	1355708	memset(point, 0, sizeof *point);
236
237	1355708	vt = vjsn_child(vv, "name");
238	1355708	AN(vt);
239	1355708	assert(vjsn_is_string(vt));
240
241	1355708	VSB_clear(vsb);
242	1355708	VSB_printf(vsb, "%s.%s", seg->fantom->ident, vt->value);
243	1355708	AZ(VSB_finish(vsb));
244
245	1355708	if (vsc_filter(vsc, VSB_data(vsb)))
246	90100	return;
247
248	1265608	point->name = strdup(VSB_data(vsb));
249	1265608	AN(point->name);
250	1265608	point->point.name = point->name;
251
252		#define DOF(n, k) \
253		vt = vjsn_child(vv, k); \
254		AN(vt); \
255		assert(vjsn_is_string(vt)); \
256		point->point.n = vt->value;
257
258	1265608	DOF(ctype, "ctype");
259	1265608	DOF(sdesc, "oneliner");
260	1265608	DOF(ldesc, "docs");
261		#undef DOF
262	1265608	vt = vjsn_child(vv, "type");
263	1265608	AN(vt);
264	1265608	assert(vjsn_is_string(vt));
265
266	1265608	if (!strcmp(vt->value, "counter")) {
267	1101349	point->point.semantics = 'c';
268	1265608	} else if (!strcmp(vt->value, "gauge")) {
269	160033	point->point.semantics = 'g';
270	164259	} else if (!strcmp(vt->value, "bitmap")) {
271	4226	point->point.semantics = 'b';
272	4226	} else {
273	0	point->point.semantics = '?';
274		}
275
276	1265608	vt = vjsn_child(vv, "format");
277	1265608	AN(vt);
278	1265608	assert(vjsn_is_string(vt));
279
280	1265608	if (!strcmp(vt->value, "integer")) {
281	1125434	point->point.format = 'i';
282	1265608	} else if (!strcmp(vt->value, "bytes")) {
283	125048	point->point.format = 'B';
284	140174	} else if (!strcmp(vt->value, "bitmap")) {
285	4226	point->point.format = 'b';
286	15126	} else if (!strcmp(vt->value, "duration")) {
287	10900	point->point.format = 'd';
288	10900	} else {
289	0	point->point.format = '?';
290		}
291
292	1265608	vt = vjsn_child(vv, "level");
293	1265608	AN(vt);
294	1265608	assert(vjsn_is_string(vt));
295
296	1265608	if (!strcmp(vt->value, "info")) {
297	585288	point->point.level = &levels[info];
298	1265608	} else if (!strcmp(vt->value, "diag")) {
299	359182	point->point.level = &levels[diag];
300	680320	} else if (!strcmp(vt->value, "debug")) {
301	321138	point->point.level = &levels[debug];
302	321138	} else {
303	0	WRONG("Illegal level");
304		}
305
306	1265608	vt = vjsn_child(vv, "index");
307	1265608	AN(vt);
308
309	1265608	point->point.ptr = (volatile void*)(seg->body + atoi(vt->value));
310	1265608	point->point.raw = vsc->raw;
311	1355708	}
312
313		static void
314	78585	vsc_del_seg(const struct vsc vsc, struct vsm vsm, struct vsc_seg **spp)
315		{
316		unsigned u;
317		struct vsc_pt *pp;
318		struct vsc_seg *sp;
319
320	78585	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
321	78585	TAKE_OBJ_NOTNULL(sp, spp, VSC_SEG_MAGIC);
322	78585	AZ(VSM_Unmap(vsm, sp->fantom));
323	78585	if (sp->vj != NULL) {
324	17626	vjsn_delete(&sp->vj);
325	17626	} else {
326	60959	pp = sp->points;
327	1234417	for (u = 0; u < sp->npoints; u++, pp++)
328	1173458	vsc_clean_point(pp);
329	60959	free(sp->points);
330		}
331	78585	FREE_OBJ(sp);
332	78585	}
333
334		static struct vsc_seg *
335	95310	vsc_add_seg(const struct vsc vsc, struct vsm vsm, const struct vsm_fantom *fp)
336		{
337		struct vsc_seg sp, spd;
338		const char *e;
339		struct vjsn_val vv, vve;
340		struct vsb *vsb;
341		struct vsc_pt *pp;
342
343	95310	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
344
345	95310	ALLOC_OBJ(sp, VSC_SEG_MAGIC);
346	95310	AN(sp);
347	95310	sp->fantom = fp;
348	95310	if (VSM_Map(vsm, sp->fantom)) {
349		/*
350		* If the seg was removed between our call to VSM_Status()
351		* and now, we won't be able to map it.
352		*/
353	0	FREE_OBJ(sp);
354	0	return (NULL);
355		}
356	95310	sp->head = sp->fantom->b;
357	95310	if (sp->head->ready == 0) {
358	0	VRMB();
359	0	usleep(100000);
360	0	}
361	95310	assert(sp->head->ready > 0);
362	95310	sp->body = (char*)sp->fantom->b + sp->head->body_offset;
363
364	95310	if (!strcmp(fp->category, VSC_CLASS)) {
365	852995	VTAILQ_FOREACH(spd, &vsc->segs, list)
366	852995	if (spd->head->doc_id == sp->head->doc_id)
367	75434	break;
368	75434	AN(spd);
369		// XXX: Refcount ?
370	75434	vve = vjsn_child(spd->vj->value, "elements");
371	75434	AN(vve);
372	75434	sp->npoints = strtoul(vve->value, NULL, 0);
373	75434	sp->points = calloc(sp->npoints, sizeof *sp->points);
374	75434	AN(sp->points);
375	75434	vsb = VSB_new_auto();
376	75434	AN(vsb);
377	75434	vve = vjsn_child(spd->vj->value, "elem");
378	75434	AN(vve);
379	75434	pp = sp->points;
380	1431142	VTAILQ_FOREACH(vv, &vve->children, list) {
381	1355708	vsc_fill_point(vsc, sp, vv, vsb, pp);
382	1355708	pp++;
383	1355708	}
384	75434	VSB_destroy(&vsb);
385	75434	return (sp);
386		}
387	19876	assert(!strcmp(fp->category, VSC_DOC_CLASS));
388	19876	sp->vj = vjsn_parse(sp->body, &e);
389	19876	XXXAZ(e);
390	19876	AN(sp->vj);
391	19876	return (sp);
392	95310	}
393
394		/*--------------------------------------------------------------------
395		*/
396
397		static void
398	661560	vsc_expose(const struct vsc vsc, struct vsc_seg sp, int del)
399		{
400		struct vsc_pt *pp;
401		unsigned u;
402		int expose;
403
404	667160	if (vsc->fnew != NULL && !sp->exposed &&
405	5600	!del && sp->head->ready == 1)
406	5600	expose = 1;
407	691848	else if (vsc->fdestroy != NULL && sp->exposed &&
408	41488	(del \|\| sp->head->ready == 2))
409	5600	expose = 0;
410		else
411	650360	return;
412
413	11200	pp = sp->points;
414	115400	for (u = 0; u < sp->npoints; u++, pp++) {
415	104200	if (pp->name == NULL)
416	16450	continue;
417	87750	if (expose)
418	43875	pp->point.priv = vsc->fnew(vsc->priv, &pp->point);
419		else
420	43875	vsc->fdestroy(vsc->priv, &pp->point);
421	87750	}
422	11200	sp->exposed = expose;
423	661560	}
424
425		/*--------------------------------------------------------------------
426		*/
427
428		static int
429	536462	vsc_iter_seg(const struct vsc vsc, const struct vsc_seg sp,
430		VSC_iter_f fiter, void priv)
431		{
432		unsigned u;
433	536462	int i = 0;
434		struct vsc_pt *pp;
435
436	536462	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
437	536462	CHECK_OBJ_NOTNULL(sp, VSC_SEG_MAGIC);
438	536462	AN(fiter);
439	536462	pp = sp->points;
440	6283647	for (u = 0; u < sp->npoints && i == 0; u++, pp++) {
441	5747185	if (pp->name != NULL)
442	5698160	i = fiter(priv, &pp->point);
443	5747185	}
444	536462	return (i);
445		}
446
447		int
448	28904	VSC_Iter(struct vsc vsc, struct vsm vsm, VSC_iter_f fiter, void priv)
449		{
450		struct vsm_fantom ifantom;
451		struct vsc_seg sp, sp2;
452	28904	int i = 0;
453
454	28904	CHECK_OBJ_NOTNULL(vsc, VSC_MAGIC);
455	28904	AN(vsm);
456	28904	sp = VTAILQ_FIRST(&vsc->segs);
457	749307	VSM_FOREACH(&ifantom, vsm) {
458	741331	AN(ifantom.category);
459	741331	if (strcmp(ifantom.category, VSC_CLASS) &&
460	266973	strcmp(ifantom.category, VSC_DOC_CLASS))
461	158356	continue;
462	1076290	while (sp != NULL &&
463	490490	(strcmp(ifantom.ident, sp->fantom->ident) \|\|
464	487990	VSM_StillValid(vsm, sp->fantom) != VSM_valid)) {
465	2825	sp2 = sp;
466	2825	sp = VTAILQ_NEXT(sp, list);
467	2825	VTAILQ_REMOVE(&vsc->segs, sp2, list);
468	2825	vsc_expose(vsc, sp2, 1);
469	2825	vsc_del_seg(vsc, vsm, &sp2);
470		}
471	582975	if (sp == NULL) {
472	95310	sp = vsc_add_seg(vsc, vsm, &ifantom);
473	95310	if (sp != NULL) {
474	95310	VTAILQ_INSERT_TAIL(&vsc->segs, sp, list);
475	95310	vsc_expose(vsc, sp, 0);
476	95310	}
477	95310	} else {
478	487665	vsc_expose(vsc, sp, 0);
479		}
480	582975	if (sp != NULL) {
481	582975	if (fiter != NULL && sp->head->ready < 2)
482	536462	i = vsc_iter_seg(vsc, sp, fiter, priv);
483	582975	sp = VTAILQ_NEXT(sp, list);
484	582975	}
485
486	582975	if (i)
487	20928	break;
488		}
489	52853	while (sp != NULL) {
490	23949	sp2 = sp;
491	23949	sp = VTAILQ_NEXT(sp, list);
492	23949	VTAILQ_REMOVE(&vsc->segs, sp2, list);
493	23949	vsc_expose(vsc, sp2, 1);
494	23949	vsc_del_seg(vsc, vsm, &sp2);
495		}
496	28904	return (i);
497		}
498
499		/*--------------------------------------------------------------------