[moira.git] / server / increment.dc

/*
 *	$Source$
 *	$Author$
 *	$Header$
 *
 *	Copyright (C) 1989 by the Massachusetts Institute of Technology
 *	For copying and distribution information, please see the file
 *	<mit-copyright.h>.
 * 
 */

#ifndef lint
static char *rcsid_increment_dc = "$Header$";
#endif lint

#include <fcntl.h>
#include <mit-copyright.h>
#include <moira.h>
#include "query.h"
#include "mr_server.h"
EXEC SQL INCLUDE sqlca;

extern char *whoami;

int inc_pid = 0;
int inc_running = 0;
time_t inc_started;

#define MAXARGC 15

EXEC SQL WHENEVER SQLERROR CALL ingerr;

/* structures to save before args */
static char beforeb[MAXARGC][ARGLEN];
static char *before[MAXARGC];
EXEC SQL BEGIN DECLARE SECTION;
char *barg0, *barg1, *barg2, *barg3, *barg4;
char *barg5, *barg6, *barg7, *barg8, *barg9;
char *barg10, *barg11, *barg12, *barg13, *barg14;
EXEC SQL END DECLARE SECTION;
static int beforec;
static char *beforetable;

/* structures to save after args */
static char afterb[MAXARGC][ARGLEN];
static char *after[MAXARGC];
EXEC SQL BEGIN DECLARE SECTION;
char *aarg0, *aarg1, *aarg2, *aarg3, *aarg4;
char *aarg5, *aarg6, *aarg7, *aarg8, *aarg9;
char *aarg10, *aarg11, *aarg12, *aarg13, *aarg14;
EXEC SQL END DECLARE SECTION;
static int afterc;

/* structures to save entire sets of incremental changes */
struct save_queue *incremental_sq = NULL;
struct save_queue *incremental_exec = NULL;
struct iupdate {
    char *table;
    int beforec;
    char **before;
    int afterc;
    char **after;
    char *service;
};


incremental_init()
{
    int i;

    for (i = 0; i < MAXARGC; i++) {
	before[i] = &beforeb[i][0];
	after[i] = &afterb[i][0];
    }
    barg0 = before[0];
    barg1 = before[1];
    barg2 = before[2];
    barg3 = before[3];
    barg4 = before[4];
    barg5 = before[5];
    barg6 = before[6];
    barg7 = before[7];
    barg8 = before[8];
    barg9 = before[9];
    barg10 = before[10];
    barg11 = before[11];
    barg12 = before[12];
    barg13 = before[13];
    barg14 = before[14];
    aarg0 = after[0];
    aarg1 = after[1];
    aarg2 = after[2];
    aarg3 = after[3];
    aarg4 = after[4];
    aarg5 = after[5];
    aarg6 = after[6];
    aarg7 = after[7];
    aarg8 = after[8];
    aarg9 = after[9];
    aarg10 = after[10];
    aarg11 = after[11];
    aarg12 = after[12];
    aarg13 = after[13];
    aarg14 = after[14];
    if (incremental_sq == NULL)
      incremental_sq = sq_create();
    if (incremental_exec == NULL)
      incremental_exec = sq_create();
}


incremental_before(table, qual, argv)
char *table;
EXEC SQL BEGIN DECLARE SECTION; 
char *qual;
EXEC SQL END DECLARE SECTION; 
char **argv;
{
    EXEC SQL BEGIN DECLARE SECTION;
    int id;
    EXEC SQL END DECLARE SECTION;

    char buffer[512], *name;

    beforetable = table;

    if (!strcmp(table, "users")) {
	EXEC SQL SELECT u.login, CHAR(u.uid), u.shell, u.last, u.first, u.middle, 
	    CHAR(u.status), u.clearid, u.type
	  INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
	    :barg7, :barg8
	  FROM users u WHERE :qual;
	beforec = 9;
    } else if (!strcmp(table, "machine")) {
	EXEC SQL SELECT m.name, m.vendor INTO :barg0, :barg1 FROM machine m
	  WHERE :qual;
	beforec = 2;
    } else if (!strcmp(table, "cluster")) {
	EXEC SQL SELECT c.name, c.description, c.location 
	  INTO :barg0, :barg1, :barg2
	  FROM cluster c WHERE :qual;
	beforec = 3;
    } else if (!strcmp(table, "mcmap")) {
	strcpy(barg0, argv[0]);
	strcpy(barg1, argv[1]);
	beforec = 2;
    } else if (!strcmp(table, "svc")) {
	strcpy(barg0, argv[0]);
	strcpy(barg1, argv[1]);
	strcpy(barg2, argv[2]);
	beforec = 3;
    } else if (!strcmp(table, "filesys")) {
	EXEC SQL SELECT fs.label, fs.type, CHAR(fs.mach_id), fs.name, 
	    fs.mount, fs.access, fs.comments, CHAR(fs.owner), CHAR(fs.owners),
            CHAR(fs.createflg), fs.lockertype
	  INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6, 
            :barg7, :barg8, :barg9, :barg10
	  FROM filesys fs WHERE :qual;
        name = malloc(0);
        id = atoi(barg2);
        id_to_name(id, "MACHINE", &name);
        strcpy(barg2, name);
        id = atoi(barg7);
        id_to_name(id, "USER", &name);
        strcpy(barg7, name);
        id = atoi(barg8);
        id_to_name(id, "LIST", &name);
        strcpy(barg8, name);
        free(name);
	beforec = 11;
    } else if (!strcmp(table, "quota")) {
	strcpy(barg0, "?");
	strcpy(barg1, argv[1]);
	strcpy(barg2, "?");
	sprintf(buffer, "%s AND fs.filsys_id = q.filsys_id", qual);
	qual = buffer;
	EXEC SQL SELECT CHAR(q.quota), fs.name INTO :barg3, :barg4
	  FROM quota q, filesys fs WHERE :qual;
	beforec = 5;
    } else if (!strcmp(table, "list")) {
	EXEC SQL SELECT l.name, CHAR(l.active), CHAR(l.publicflg), 
	    CHAR(l.hidden), CHAR(l.maillist), CHAR(l.grouplist), CHAR(l.gid), 
	    l.acl_type, CHAR(l.acl_id), l.description
	  INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
	    :barg7, :barg8, :barg9
	  FROM list l WHERE :qual;
	beforec = 10;
    } else if (!strcmp(table, "members")) {
	id = (int) argv[0];
 	EXEC SQL SELECT CHAR(active), CHAR(publicflg), CHAR(hidden),
		CHAR(maillist), CHAR(grouplist), CHAR(gid)
		INTO :barg3, :barg4, :barg5, :barg6, :barg7, :barg8
		FROM list WHERE list_id = :id;
	name = malloc(0);
	id_to_name(id, "LIST", &name);
	strcpy(barg0, name);
	strcpy(barg1, argv[1]);
	id = (int) argv[2];
	beforec = 9;
	if (!strcmp(barg1, "USER")) {
	    id_to_name(id, barg1, &name);
	    EXEC SQL SELECT CHAR(status) INTO :barg9 FROM users 
		WHERE users_id=:id;
	    beforec = 10;
	} else if (!strcmp(barg1, "LIST")) {
	    id_to_name(id, barg1, &name);
	} else if (!strcmp(barg1, "STRING")) {
	    id_to_name(id, barg1, &name);
	} else if (!strcmp(barg1, "KERBEROS")) {
	    id_to_name(id, "STRING", &name);
	}
	strcpy(barg2, name);
	free(name);
    } /* else
      com_err(whoami, 0, "unknown table in incremental_before"); */
}


incremental_clear_before()
{
    beforec = 0;
}

incremental_clear_after()
{
    incremental_after("clear", 0);
}


incremental_after(table, qual, argv)
char *table;
EXEC SQL BEGIN DECLARE SECTION; 
char *qual;
EXEC SQL END DECLARE SECTION; 
char **argv;
{
    char buffer[2048], *name;
EXEC SQL BEGIN DECLARE SECTION; 
    int id, i;
EXEC SQL END DECLARE SECTION; 
    struct iupdate *iu;
    char **copy_argv();

    if (!strcmp(table, "users")) {
	EXEC SQL SELECT u.login, CHAR(u.uid), u.shell, u.last, u.first, 
	    u.middle, CHAR(u.status), u.clearid, u.type
	  INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5,
	    :aarg6, :aarg7, :aarg8
	  FROM users u WHERE :qual;
	afterc = 9;
    } else if (!strcmp(table, "machine")) {
	EXEC SQL SELECT m.name, m.vendor INTO :aarg0, :aarg1
	  FROM machine m WHERE :qual;
	afterc = 2;
    } else if (!strcmp(table, "cluster")) {
	EXEC SQL SELECT c.name, c.description, c.location 
	  INTO :aarg0, :aarg1, :aarg2
	  FROM cluster c WHERE :qual;
	afterc = 3;
    } else if (!strcmp(table, "mcmap")) {
	strcpy(aarg0, argv[0]);
	strcpy(aarg1, argv[1]);
	afterc = 2;
    } else if (!strcmp(table, "svc")) {
	strcpy(aarg0, argv[0]);
	strcpy(aarg1, argv[1]);
	strcpy(aarg2, argv[2]);
	afterc = 3;
    } else if (!strcmp(table, "filesys")) {
        EXEC SQL SELECT CHAR(fs.label), fs.type, CHAR(fs.mach_id), fs.name, 
	    fs.mount, fs.access, fs.comments, CHAR(fs.owner), CHAR(fs.owners),
	    CHAR(fs.createflg), fs.lockertype
          INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6,
	      :aarg7, :aarg8, :aarg9, :aarg10
          FROM filesys fs WHERE :qual;
        name = malloc(0);
        id = atoi(aarg2);
        id_to_name(id, "MACHINE", &name);
        strcpy(aarg2, name);
        id = atoi(aarg7);
        id_to_name(id, "USER", &name);
        strcpy(aarg7, name);
        id = atoi(aarg8);
        id_to_name(id, "LIST", &name);
        strcpy(aarg8, name);
        free(name);
	afterc = 11;
    } else if (!strcmp(table, "quota")) {
	strcpy(aarg0, "?");
	strcpy(aarg1, argv[1]);
	strcpy(aarg2, "?");
	sprintf(buffer, "%s and fs.filsys_id = q.filsys_id and q.type = '%s'",
		qual, argv[1]);
	qual = buffer;
	EXEC SQL SELECT CHAR(q.quota), fs.name INTO :aarg3, :aarg4
	  FROM quota q, filesys fs WHERE :qual;
	afterc = 5;
    } else if (!strcmp(table, "list")) {
	EXEC SQL SELECT l.name, CHAR(l.active), CHAR(l.publicflg), 
	    CHAR(l.hidden), CHAR(l.maillist), CHAR(l.grouplist), CHAR(l.gid), 
            l.acl_type, CHAR(l.acl_id), l.description
	  INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6,
	     :aarg7, :aarg8, :aarg9
	  FROM list l WHERE :qual;
	afterc = 10;
    } else if (!strcmp(table, "members")) {
	id = (int) argv[0];
 	EXEC SQL SELECT CHAR(active), CHAR(publicflg), CHAR(hidden),
		CHAR(maillist), CHAR(grouplist), CHAR(gid)
		INTO :aarg3, :aarg4, :aarg5, :aarg6, :aarg7, :aarg8
		FROM list WHERE list_id = :id;
	name = malloc(0);
	id_to_name(id, "LIST", &name);
	strcpy(aarg0, name);
	strcpy(aarg1, argv[1]);
	id = (int) argv[2];
	afterc = 9;
	if (!strcmp(aarg1, "USER")) {
	    id_to_name(id, aarg1, &name);
	    EXEC SQL SELECT CHAR(status) INTO :aarg9 FROM users 
		WHERE users_id=:id;
	    afterc = 10;
	} else if (!strcmp(aarg1, "LIST")) {
	    id_to_name(id, aarg1, &name);
	} else if (!strcmp(aarg1, "STRING")) {
	    id_to_name(id, aarg1, &name);
	} else if (!strcmp(aarg1, "KERBEROS")) {
	    id_to_name(id, "STRING", &name);
	}
	strcpy(aarg2, name);
	free(name);
    } else if (!strcmp(table, "clear")) {
	afterc = 0;
	table = beforetable;
    } /* else
      com_err(whoami, 0, "unknown table in incremental_after"); */

    iu = (struct iupdate *) malloc(sizeof(struct iupdate));
    iu->table = strsave(table);
    iu->beforec = beforec;
    iu->before = copy_argv(before, beforec);
    iu->afterc = afterc;
    iu->after = copy_argv(after, afterc);
    sq_save_data(incremental_sq, iu);

#ifdef DEBUG
    sprintf(buffer, "INCREMENTAL(%s, [", table);
    for (i = 0; i < beforec; i++) {
	if (i == 0)
	  strcat(buffer, strtrim(before[0]));
	else {
	    strcat(buffer, ", ");
	    strcat(buffer, strtrim(before[i]));
	}
    }
    strcat(buffer, "], [");
    for (i = 0; i < afterc; i++) {
	if (i == 0)
	  strcat(buffer, strtrim(after[0]));
	else {
	    strcat(buffer, ", ");
	    strcat(buffer, strtrim(after[i]));
	}
    }
    strcat(buffer, "])");
    com_err(whoami, 0, buffer);
#endif DEBUG
}


/* Called when the current transaction is committed to start any queued
 * incremental updates.  This caches the update table the first time it
 * is called.
 */

struct inc_cache {
    struct inc_cache *next;
    char *table;
    char *service;
};


incremental_update()
{
    static int inited = 0;
    static struct inc_cache *cache;
    struct inc_cache *c;
    EXEC SQL BEGIN DECLARE SECTION;
    char tab[17], serv[17];
    EXEC SQL END DECLARE SECTION;
    struct iupdate *iu;

    if (!inited) {
	inited++;

	EXEC SQL DECLARE inc CURSOR FOR SELECT tablename, service FROM incremental;
	EXEC SQL OPEN inc;
	while (1) {
	    EXEC SQL FETCH inc INTO :tab, :serv;
	    if (sqlca.sqlcode != 0) break;
    	    c = (struct inc_cache *)malloc(sizeof(struct inc_cache));
	    c->next = cache;
	    c->table = strsave(strtrim(tab));
	    c->service = strsave(strtrim(serv));
	    cache = c;
	}
	EXEC SQL CLOSE inc;
	EXEC SQL COMMIT WORK;
    }

    while (sq_remove_data(incremental_sq, &iu)) {
	for (c = cache; c; c = c->next) {
	    if (!strcmp(c->table, iu->table)) {
		iu->service = c->service;
		sq_save_data(incremental_exec, iu);
	    }
	}
    }
    if (inc_running == 0)
      next_incremental();
}


next_incremental()
{
    struct iupdate *iu;
    char *argv[MAXARGC * 2 + 4], cafter[3], cbefore[3], prog[BUFSIZ];
    int i;

    if (incremental_exec == NULL)
      incremental_init();

    if (sq_empty(incremental_exec) ||
	(inc_running && now - inc_started < INC_TIMEOUT))
      return;

    if (inc_running)
      com_err(whoami, 0, "incremental timeout on pid %d", inc_pid);

    sq_remove_data(incremental_exec, &iu);
    argv[1] = iu->table;
    sprintf(cbefore, "%d", iu->beforec);
    argv[2] = cbefore;
    sprintf(cafter, "%d", iu->afterc);
    argv[3] = cafter;
    for (i = 0; i < iu->beforec; i++)
      argv[4 + i] = iu->before[i];
    for (i = 0; i < iu->afterc; i++)
      argv[4 + iu->beforec + i] = iu->after[i];

    sprintf(prog, "%s/%s.incr", BIN_DIR, iu->service);
#ifdef DEBUG
    com_err(whoami, 0, "forking %s", prog);
#endif
    argv[0] = prog;
    argv[4 + iu->beforec + iu->afterc] = 0;
    inc_pid = vfork();
    switch (inc_pid) {
    case 0:
	execv(prog, argv);
	_exit(1);
    case -1:
	com_err(whoami, 0, "Failed to start incremental update");
	break;
    default:
	inc_running = 1;
	inc_started = now;
    }

    free_argv(iu->before, iu->beforec);
    free_argv(iu->after, iu->afterc);
    free(iu->table);
    free(iu);

}


/* Called when the current transaction is aborted to throw away any queued
 * incremental updates
 */

incremental_flush()
{
    struct iupdate *iu;

    while (sq_get_data(incremental_sq, &iu)) {
	free_argv(iu->before, iu->beforec);
	free_argv(iu->after, iu->afterc);
	free(iu->table);
	free(iu);
    }
    sq_destroy(incremental_sq);
    incremental_sq = sq_create();
}


char **copy_argv(argv, argc)
char **argv;
int argc;
{
    char **ret = (char **)malloc(sizeof(char *) * argc);
    while (--argc >= 0)
      ret[argc] = strsave(strtrim(argv[argc]));
    return(ret);
}

free_argv(argv, argc)
char **argv;
int argc;
{
    while (--argc >= 0)
      free(argv[argc]);
    free(argv);
}
Commit	Line	Data
32cfe906	1	/*
	2	* $Source$
	3	* $Author$
	4	* $Header$
	5	*
	6	* Copyright (C) 1989 by the Massachusetts Institute of Technology
	7	* For copying and distribution information, please see the file
	8	* <mit-copyright.h>.
	9	*
	10	*/
	11
	12	#ifndef lint
	13	static char *rcsid_increment_dc = "$Header$";
	14	#endif lint
	15
af0171d9	16	#include <fcntl.h>
32cfe906	17	#include <mit-copyright.h>
	18	#include <moira.h>
	19	#include "query.h"
	20	#include "mr_server.h"
45bf7573	21	EXEC SQL INCLUDE sqlca;
32cfe906	22
32cfe906	23	extern char *whoami;
32cfe906	24
	25	int inc_pid = 0;
	26	int inc_running = 0;
	27	time_t inc_started;
	28
	29	#define MAXARGC 15
	30
45bf7573	31	EXEC SQL WHENEVER SQLERROR CALL ingerr;
45bf7573	32
32cfe906	33	/* structures to save before args */
	34	static char beforeb[MAXARGC][ARGLEN];
	35	static char *before[MAXARGC];
	36	EXEC SQL BEGIN DECLARE SECTION;
	37	char barg0, barg1, barg2, barg3, *barg4;
	38	char barg5, barg6, barg7, barg8, *barg9;
	39	char barg10, barg11, barg12, barg13, *barg14;
	40	EXEC SQL END DECLARE SECTION;
	41	static int beforec;
	42	static char *beforetable;
	43
	44	/* structures to save after args */
	45	static char afterb[MAXARGC][ARGLEN];
	46	static char *after[MAXARGC];
	47	EXEC SQL BEGIN DECLARE SECTION;
	48	char aarg0, aarg1, aarg2, aarg3, *aarg4;
	49	char aarg5, aarg6, aarg7, aarg8, *aarg9;
	50	char aarg10, aarg11, aarg12, aarg13, *aarg14;
	51	EXEC SQL END DECLARE SECTION;
	52	static int afterc;
	53
	54	/* structures to save entire sets of incremental changes */
	55	struct save_queue *incremental_sq = NULL;
	56	struct save_queue *incremental_exec = NULL;
	57	struct iupdate {
	58	char *table;
	59	int beforec;
	60	char **before;
	61	int afterc;
	62	char **after;
	63	char *service;
	64	};
	65
	66
	67	incremental_init()
	68	{
	69	int i;
	70
	71	for (i = 0; i < MAXARGC; i++) {
	72	before[i] = &beforeb[i][0];
	73	after[i] = &afterb[i][0];
	74	}
	75	barg0 = before[0];
	76	barg1 = before[1];
	77	barg2 = before[2];
	78	barg3 = before[3];
	79	barg4 = before[4];
	80	barg5 = before[5];
	81	barg6 = before[6];
	82	barg7 = before[7];
	83	barg8 = before[8];
	84	barg9 = before[9];
	85	barg10 = before[10];
	86	barg11 = before[11];
	87	barg12 = before[12];
	88	barg13 = before[13];
	89	barg14 = before[14];
	90	aarg0 = after[0];
	91	aarg1 = after[1];
	92	aarg2 = after[2];
	93	aarg3 = after[3];
	94	aarg4 = after[4];
	95	aarg5 = after[5];
	96	aarg6 = after[6];
97	aarg7 = after[7];
98	aarg8 = after[8];
99	aarg9 = after[9];
100	aarg10 = after[10];
101	aarg11 = after[11];
102	aarg12 = after[12];
103	aarg13 = after[13];
104	aarg14 = after[14];
105	if (incremental_sq == NULL)
106	incremental_sq = sq_create();
107	if (incremental_exec == NULL)
108	incremental_exec = sq_create();
109	}
110
111
112	incremental_before(table, qual, argv)
113	char *table;
45bf7573	114	EXEC SQL BEGIN DECLARE SECTION;
32cfe906	115	char *qual;
45bf7573	116	EXEC SQL END DECLARE SECTION;
32cfe906	117	char **argv;
	118	{
	119	EXEC SQL BEGIN DECLARE SECTION;
	120	int id;
	121	EXEC SQL END DECLARE SECTION;
	122
	123	char buffer[512], *name;
	124
	125	beforetable = table;
	126
	127	if (!strcmp(table, "users")) {
0c345c78	128	EXEC SQL SELECT u.login, CHAR(u.uid), u.shell, u.last, u.first, u.middle,
0c345c78	129	CHAR(u.status), u.clearid, u.type
a313cad2	130	INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
a313cad2	131	:barg7, :barg8
0c345c78	132	FROM users u WHERE :qual;
32cfe906	133	beforec = 9;
32cfe906	134	} else if (!strcmp(table, "machine")) {
2eb0fc99	135	EXEC SQL SELECT m.name, m.vendor INTO :barg0, :barg1 FROM machine m
a313cad2	136	WHERE :qual;
32cfe906	137	beforec = 2;
32cfe906	138	} else if (!strcmp(table, "cluster")) {
0c345c78	139	EXEC SQL SELECT c.name, c.description, c.location
45bf7573	140	INTO :barg0, :barg1, :barg2
0c345c78	141	FROM cluster c WHERE :qual;
32cfe906	142	beforec = 3;
	143	} else if (!strcmp(table, "mcmap")) {
	144	strcpy(barg0, argv[0]);
	145	strcpy(barg1, argv[1]);
	146	beforec = 2;
	147	} else if (!strcmp(table, "svc")) {
	148	strcpy(barg0, argv[0]);
	149	strcpy(barg1, argv[1]);
	150	strcpy(barg2, argv[2]);
	151	beforec = 3;
	152	} else if (!strcmp(table, "filesys")) {
0c345c78	153	EXEC SQL SELECT fs.label, fs.type, CHAR(fs.mach_id), fs.name,
	154	fs.mount, fs.access, fs.comments, CHAR(fs.owner), CHAR(fs.owners),
	155	CHAR(fs.createflg), fs.lockertype
a313cad2	156	INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
a313cad2	157	:barg7, :barg8, :barg9, :barg10
0c345c78	158	FROM filesys fs WHERE :qual;
bc5e9d66	159	name = malloc(0);
	160	id = atoi(barg2);
	161	id_to_name(id, "MACHINE", &name);
	162	strcpy(barg2, name);
	163	id = atoi(barg7);
	164	id_to_name(id, "USER", &name);
	165	strcpy(barg7, name);
	166	id = atoi(barg8);
	167	id_to_name(id, "LIST", &name);
	168	strcpy(barg8, name);
	169	free(name);
32cfe906	170	beforec = 11;
	171	} else if (!strcmp(table, "quota")) {
	172	strcpy(barg0, "?");
	173	strcpy(barg1, argv[1]);
	174	strcpy(barg2, "?");
0c345c78	175	sprintf(buffer, "%s AND fs.filsys_id = q.filsys_id", qual);
32cfe906	176	qual = buffer;
0c345c78	177	EXEC SQL SELECT CHAR(q.quota), fs.name INTO :barg3, :barg4
0c345c78	178	FROM quota q, filesys fs WHERE :qual;
32cfe906	179	beforec = 5;
32cfe906	180	} else if (!strcmp(table, "list")) {
0c345c78	181	EXEC SQL SELECT l.name, CHAR(l.active), CHAR(l.publicflg),
	182	CHAR(l.hidden), CHAR(l.maillist), CHAR(l.grouplist), CHAR(l.gid),
	183	l.acl_type, CHAR(l.acl_id), l.description
a313cad2	184	INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
0c345c78	185	:barg7, :barg8, :barg9
0c345c78	186	FROM list l WHERE :qual;
32cfe906	187	beforec = 10;
	188	} else if (!strcmp(table, "members")) {
	189	id = (int) argv[0];
5be1b7fc	190	EXEC SQL SELECT CHAR(active), CHAR(publicflg), CHAR(hidden),
	191	CHAR(maillist), CHAR(grouplist), CHAR(gid)
	192	INTO :barg3, :barg4, :barg5, :barg6, :barg7, :barg8
	193	FROM list WHERE list_id = :id;
32cfe906	194	name = malloc(0);
	195	id_to_name(id, "LIST", &name);
	196	strcpy(barg0, name);
	197	strcpy(barg1, argv[1]);
	198	id = (int) argv[2];
edf38460	199	beforec = 9;
32cfe906	200	if (!strcmp(barg1, "USER")) {
32cfe906	201	id_to_name(id, barg1, &name);
edf38460	202	EXEC SQL SELECT CHAR(status) INTO :barg9 FROM users
	203	WHERE users_id=:id;
	204	beforec = 10;
32cfe906	205	} else if (!strcmp(barg1, "LIST")) {
	206	id_to_name(id, barg1, &name);
	207	} else if (!strcmp(barg1, "STRING")) {
	208	id_to_name(id, barg1, &name);
	209	} else if (!strcmp(barg1, "KERBEROS")) {
	210	id_to_name(id, "STRING", &name);
	211	}
	212	strcpy(barg2, name);
	213	free(name);
32cfe906	214	} /* else
32cfe906	215	com_err(whoami, 0, "unknown table in incremental_before"); */
a313cad2	216	}
32cfe906	217
	218
	219	incremental_clear_before()
	220	{
	221	beforec = 0;
	222	}
	223
	224	incremental_clear_after()
	225	{
	226	incremental_after("clear", 0);
	227	}
	228
	229
	230
a313cad2	231	incremental_after(table, qual, argv)
a313cad2	232	char *table;
45bf7573	233	EXEC SQL BEGIN DECLARE SECTION;
a313cad2	234	char *qual;
a313cad2	235	EXEC SQL END DECLARE SECTION;
32cfe906	236	char **argv;
a313cad2	237	{
32cfe906	238	char buffer[2048], *name;
a313cad2	239	EXEC SQL BEGIN DECLARE SECTION;
	240	int id, i;
	241	EXEC SQL END DECLARE SECTION;
32cfe906	242	struct iupdate *iu;
	243	char **copy_argv();
	244
	245	if (!strcmp(table, "users")) {
0c345c78	246	EXEC SQL SELECT u.login, CHAR(u.uid), u.shell, u.last, u.first,
0c345c78	247	u.middle, CHAR(u.status), u.clearid, u.type
a313cad2	248	INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5,
a313cad2	249	:aarg6, :aarg7, :aarg8
0c345c78	250	FROM users u WHERE :qual;
32cfe906	251	afterc = 9;
32cfe906	252	} else if (!strcmp(table, "machine")) {
2eb0fc99	253	EXEC SQL SELECT m.name, m.vendor INTO :aarg0, :aarg1
0c345c78	254	FROM machine m WHERE :qual;
32cfe906	255	afterc = 2;
32cfe906	256	} else if (!strcmp(table, "cluster")) {
0c345c78	257	EXEC SQL SELECT c.name, c.description, c.location
45bf7573	258	INTO :aarg0, :aarg1, :aarg2
0c345c78	259	FROM cluster c WHERE :qual;
32cfe906	260	afterc = 3;
	261	} else if (!strcmp(table, "mcmap")) {
	262	strcpy(aarg0, argv[0]);
	263	strcpy(aarg1, argv[1]);
	264	afterc = 2;
	265	} else if (!strcmp(table, "svc")) {
	266	strcpy(aarg0, argv[0]);
	267	strcpy(aarg1, argv[1]);
	268	strcpy(aarg2, argv[2]);
	269	afterc = 3;
	270	} else if (!strcmp(table, "filesys")) {
0c345c78	271	EXEC SQL SELECT CHAR(fs.label), fs.type, CHAR(fs.mach_id), fs.name,
	272	fs.mount, fs.access, fs.comments, CHAR(fs.owner), CHAR(fs.owners),
	273	CHAR(fs.createflg), fs.lockertype
a313cad2	274	INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6,
	275	:aarg7, :aarg8, :aarg9, :aarg10
	276	FROM filesys fs WHERE :qual;
bc5e9d66	277	name = malloc(0);
	278	id = atoi(aarg2);
	279	id_to_name(id, "MACHINE", &name);
	280	strcpy(aarg2, name);
	281	id = atoi(aarg7);
	282	id_to_name(id, "USER", &name);
	283	strcpy(aarg7, name);
	284	id = atoi(aarg8);
	285	id_to_name(id, "LIST", &name);
	286	strcpy(aarg8, name);
	287	free(name);
32cfe906	288	afterc = 11;
	289	} else if (!strcmp(table, "quota")) {
	290	strcpy(aarg0, "?");
	291	strcpy(aarg1, argv[1]);
	292	strcpy(aarg2, "?");
1d4c56d5	293	sprintf(buffer, "%s and fs.filsys_id = q.filsys_id and q.type = '%s'",
962364ec	294	qual, argv[1]);
32cfe906	295	qual = buffer;
0c345c78	296	EXEC SQL SELECT CHAR(q.quota), fs.name INTO :aarg3, :aarg4
0c345c78	297	FROM quota q, filesys fs WHERE :qual;
32cfe906	298	afterc = 5;
32cfe906	299	} else if (!strcmp(table, "list")) {
0c345c78	300	EXEC SQL SELECT l.name, CHAR(l.active), CHAR(l.publicflg),
	301	CHAR(l.hidden), CHAR(l.maillist), CHAR(l.grouplist), CHAR(l.gid),
	302	l.acl_type, CHAR(l.acl_id), l.description
a313cad2	303	INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6,
a313cad2	304	:aarg7, :aarg8, :aarg9
0c345c78	305	FROM list l WHERE :qual;
32cfe906	306	afterc = 10;
	307	} else if (!strcmp(table, "members")) {
	308	id = (int) argv[0];
5be1b7fc	309	EXEC SQL SELECT CHAR(active), CHAR(publicflg), CHAR(hidden),
	310	CHAR(maillist), CHAR(grouplist), CHAR(gid)
	311	INTO :aarg3, :aarg4, :aarg5, :aarg6, :aarg7, :aarg8
	312	FROM list WHERE list_id = :id;
32cfe906	313	name = malloc(0);
	314	id_to_name(id, "LIST", &name);
	315	strcpy(aarg0, name);
	316	strcpy(aarg1, argv[1]);
	317	id = (int) argv[2];
edf38460	318	afterc = 9;
32cfe906	319	if (!strcmp(aarg1, "USER")) {
32cfe906	320	id_to_name(id, aarg1, &name);
edf38460	321	EXEC SQL SELECT CHAR(status) INTO :aarg9 FROM users
	322	WHERE users_id=:id;
	323	afterc = 10;
32cfe906	324	} else if (!strcmp(aarg1, "LIST")) {
	325	id_to_name(id, aarg1, &name);
	326	} else if (!strcmp(aarg1, "STRING")) {
	327	id_to_name(id, aarg1, &name);
	328	} else if (!strcmp(aarg1, "KERBEROS")) {
	329	id_to_name(id, "STRING", &name);
	330	}
	331	strcpy(aarg2, name);
	332	free(name);
32cfe906	333	} else if (!strcmp(table, "clear")) {
	334	afterc = 0;
	335	table = beforetable;
	336	} /* else
	337	com_err(whoami, 0, "unknown table in incremental_after"); */
	338
	339	iu = (struct iupdate *) malloc(sizeof(struct iupdate));
	340	iu->table = strsave(table);
	341	iu->beforec = beforec;
	342	iu->before = copy_argv(before, beforec);
	343	iu->afterc = afterc;
	344	iu->after = copy_argv(after, afterc);
	345	sq_save_data(incremental_sq, iu);
	346
	347	#ifdef DEBUG
	348	sprintf(buffer, "INCREMENTAL(%s, [", table);
	349	for (i = 0; i < beforec; i++) {
	350	if (i == 0)
	351	strcat(buffer, strtrim(before[0]));
	352	else {
	353	strcat(buffer, ", ");
	354	strcat(buffer, strtrim(before[i]));
	355	}
	356	}
	357	strcat(buffer, "], [");
	358	for (i = 0; i < afterc; i++) {
	359	if (i == 0)
	360	strcat(buffer, strtrim(after[0]));
	361	else {
	362	strcat(buffer, ", ");
	363	strcat(buffer, strtrim(after[i]));
	364	}
	365	}
	366	strcat(buffer, "])");
	367	com_err(whoami, 0, buffer);
	368	#endif DEBUG
a313cad2	369	}
32cfe906	370
	371
	372	/* Called when the current transaction is committed to start any queued
	373	* incremental updates. This caches the update table the first time it
	374	* is called.
	375	*/
	376
	377	struct inc_cache {
	378	struct inc_cache *next;
	379	char *table;
	380	char *service;
	381	};
	382
	383
	384	incremental_update()
	385	{
	386	static int inited = 0;
	387	static struct inc_cache *cache;
	388	struct inc_cache *c;
	389	EXEC SQL BEGIN DECLARE SECTION;
	390	char tab[17], serv[17];
	391	EXEC SQL END DECLARE SECTION;
	392	struct iupdate *iu;
	393
	394	if (!inited) {
	395	inited++;
	396
45bf7573	397	EXEC SQL DECLARE inc CURSOR FOR SELECT tablename, service FROM incremental;
32cfe906	398	EXEC SQL OPEN inc;
	399	while (1) {
	400	EXEC SQL FETCH inc INTO :tab, :serv;
	401	if (sqlca.sqlcode != 0) break;
	402	c = (struct inc_cache *)malloc(sizeof(struct inc_cache));
	403	c->next = cache;
	404	c->table = strsave(strtrim(tab));
	405	c->service = strsave(strtrim(serv));
	406	cache = c;
	407	}
	408	EXEC SQL CLOSE inc;
de0954da	409	EXEC SQL COMMIT WORK;
32cfe906	410	}
	411
	412	while (sq_remove_data(incremental_sq, &iu)) {
	413	for (c = cache; c; c = c->next) {
	414	if (!strcmp(c->table, iu->table)) {
	415	iu->service = c->service;
	416	sq_save_data(incremental_exec, iu);
	417	}
	418	}
	419	}
	420	if (inc_running == 0)
	421	next_incremental();
	422	}
	423
	424
	425	next_incremental()
	426	{
	427	struct iupdate *iu;
	428	char argv[MAXARGC 2 + 4], cafter[3], cbefore[3], prog[BUFSIZ];
	429	int i;
	430
	431	if (incremental_exec == NULL)
	432	incremental_init();
	433
	434	if (sq_empty(incremental_exec) \|\|
	435	(inc_running && now - inc_started < INC_TIMEOUT))
	436	return;
	437
	438	if (inc_running)
	439	com_err(whoami, 0, "incremental timeout on pid %d", inc_pid);
	440
	441	sq_remove_data(incremental_exec, &iu);
	442	argv[1] = iu->table;
	443	sprintf(cbefore, "%d", iu->beforec);
	444	argv[2] = cbefore;
	445	sprintf(cafter, "%d", iu->afterc);
	446	argv[3] = cafter;
	447	for (i = 0; i < iu->beforec; i++)
	448	argv[4 + i] = iu->before[i];
	449	for (i = 0; i < iu->afterc; i++)
	450	argv[4 + iu->beforec + i] = iu->after[i];
	451
	452	sprintf(prog, "%s/%s.incr", BIN_DIR, iu->service);
	453	#ifdef DEBUG
	454	com_err(whoami, 0, "forking %s", prog);
	455	#endif
	456	argv[0] = prog;
	457	argv[4 + iu->beforec + iu->afterc] = 0;
	458	inc_pid = vfork();
	459	switch (inc_pid) {
	460	case 0:
	461	execv(prog, argv);
af0171d9	462	_exit(1);
32cfe906	463	case -1:
	464	com_err(whoami, 0, "Failed to start incremental update");
	465	break;
	466	default:
	467	inc_running = 1;
	468	inc_started = now;
	469	}
	470
	471	free_argv(iu->before, iu->beforec);
	472	free_argv(iu->after, iu->afterc);
	473	free(iu->table);
	474	free(iu);
	475
	476	}
	477
	478
	479	/* Called when the current transaction is aborted to throw away any queued
	480	* incremental updates
	481	*/
	482
	483	incremental_flush()
	484	{
	485	struct iupdate *iu;
	486
	487	while (sq_get_data(incremental_sq, &iu)) {
	488	free_argv(iu->before, iu->beforec);
	489	free_argv(iu->after, iu->afterc);
	490	free(iu->table);
	491	free(iu);
	492	}
	493	sq_destroy(incremental_sq);
	494	incremental_sq = sq_create();
	495	}
	496
	497
	498	char **copy_argv(argv, argc)
	499	char **argv;
	500	int argc;
	501	{
	502	char ret = (char )malloc(sizeof(char ) argc);
	503	while (--argc >= 0)
	504	ret[argc] = strsave(strtrim(argv[argc]));
	505	return(ret);
	506	}
	507
	508	free_argv(argv, argc)
	509	char **argv;
	510	int argc;
	511	{
	512	while (--argc >= 0)
	513	free(argv[argc]);
	514	free(argv);
	515	}