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

extern char *whoami;
char *malloc();

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 login, CHAR(uid), shell, last, first, middle, 
	    CHAR(status), clearid, type
	  INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
	    :barg7, :barg8
	  FROM users WHERE :qual;
	beforec = 9;
    } else if (!strcmp(table, "machine")) {
	EXEC SQL SELECT name, type INTO :barg0, :barg1 FROM machine
	  WHERE :qual;
	beforec = 2;
    } else if (!strcmp(table, "cluster")) {
	EXEC SQL SELECT name, description, location 
	  INTO :barg0, :barg1, :barg2
	  FROM cluster 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 label, type, CHAR(mach_id), name, mount, access,
	    comments, CHAR(owner), CHAR(owners), CHAR(createflg), lockertype
	  INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6, 
            :barg7, :barg8, :barg9, :barg10
	  FROM filesys WHERE :qual;
	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 q.quota, fs.name INTO :barg3, :barg4
	  FROM quota q, filesys fs WHERE :qual;
	beforec = 5;
    } else if (!strcmp(table, "list")) {
	EXEC SQL SELECT name, CHAR(active), CHAR(publicflg), CHAR(hidden),
	    CHAR(maillist), CHAR(grouplist), CHAR(gid), acl_type,
	    CHAR(acl_id), description
	  INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
	     :barg7, :barg8, :barg9
	  FROM list WHERE :qual;
	beforec = 10;
    } else if (!strcmp(table, "members")) {
	id = (int) argv[0];
	EXEC SQL SELECT CHAR(grouplist) INTO :barg3 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];
	if (!strcmp(barg1, "USER")) {
	    id_to_name(id, barg1, &name);
	} 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);
	beforec = 4;
    } /* 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 login, CHAR(uid), shell, last, first, middle,
	    CHAR(status), clearid, type
	  INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5,
	    :aarg6, :aarg7, :aarg8
	  FROM users WHERE :qual;
	afterc = 9;
    } else if (!strcmp(table, "machine")) {
	EXEC SQL SELECT name, type INTO :aarg0, :aarg1
	  FROM machine WHERE :qual;
	afterc = 2;
    } else if (!strcmp(table, "cluster")) {
	EXEC SQL SELECT name, description, location 
	  INTO :aarg0, :aarg1, :aarg2
	  FROM cluster 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(label), type, CHAR(mach_id), name, mount, access,
	    comments, CHAR(owner), CHAR(owners), CHAR(createflg), lockertype
          INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6,
	      :aarg7, :aarg8, :aarg9, :aarg10
          FROM filesys fs WHERE :qual;
	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", qual);
	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 name, CHAR(active), CHAR(publicflg), CHAR(hidden),
	    CHAR(maillist), CHAR(grouplist), CHAR(gid), acl_type,
	    CHAR(acl_id), description
	  INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6,
	     :aarg7, :aarg8, :aarg9
	  FROM list WHERE :qual;
	afterc = 10;
    } else if (!strcmp(table, "members")) {
	id = (int) argv[0];
	EXEC SQL SELECT CHAR(grouplist) INTO :aarg3 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];
	if (!strcmp(aarg1, "USER")) {
	    id_to_name(id, aarg1, &name);
	} 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);
	afterc = 4;
    } 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;
    }

    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
	16	#include <mit-copyright.h>
	17	#include <moira.h>
	18	#include "query.h"
	19	#include "mr_server.h"
45bf7573	20	EXEC SQL INCLUDE sqlca;
32cfe906	21
	22	extern char *whoami;
	23	char *malloc();
	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")) {
45bf7573	128	EXEC SQL SELECT login, CHAR(uid), shell, last, first, middle,
45bf7573	129	CHAR(status), clearid, type
a313cad2	130	INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
a313cad2	131	:barg7, :barg8
32cfe906	132	FROM users WHERE :qual;
	133	beforec = 9;
	134	} else if (!strcmp(table, "machine")) {
a313cad2	135	EXEC SQL SELECT name, type INTO :barg0, :barg1 FROM machine
a313cad2	136	WHERE :qual;
32cfe906	137	beforec = 2;
32cfe906	138	} else if (!strcmp(table, "cluster")) {
45bf7573	139	EXEC SQL SELECT name, description, location
45bf7573	140	INTO :barg0, :barg1, :barg2
a313cad2	141	FROM cluster 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")) {
45bf7573	153	EXEC SQL SELECT label, type, CHAR(mach_id), name, mount, access,
99e09b48	154	comments, CHAR(owner), CHAR(owners), CHAR(createflg), lockertype
a313cad2	155	INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
	156	:barg7, :barg8, :barg9, :barg10
	157	FROM filesys WHERE :qual;
32cfe906	158	beforec = 11;
	159	} else if (!strcmp(table, "quota")) {
	160	strcpy(barg0, "?");
	161	strcpy(barg1, argv[1]);
	162	strcpy(barg2, "?");
a313cad2	163	sprintf(buffer, "%s and fs.filsys_id = q.filsys_id", qual);
32cfe906	164	qual = buffer;
a313cad2	165	EXEC SQL SELECT q.quota, fs.name INTO :barg3, :barg4
a313cad2	166	FROM quota q, filesys fs WHERE :qual;
32cfe906	167	beforec = 5;
32cfe906	168	} else if (!strcmp(table, "list")) {
45bf7573	169	EXEC SQL SELECT name, CHAR(active), CHAR(publicflg), CHAR(hidden),
	170	CHAR(maillist), CHAR(grouplist), CHAR(gid), acl_type,
	171	CHAR(acl_id), description
a313cad2	172	INTO :barg0, :barg1, :barg2, :barg3, :barg4, :barg5, :barg6,
	173	:barg7, :barg8, :barg9
	174	FROM list WHERE :qual;
32cfe906	175	beforec = 10;
	176	} else if (!strcmp(table, "members")) {
	177	id = (int) argv[0];
45bf7573	178	EXEC SQL SELECT CHAR(grouplist) INTO :barg3 FROM list
a313cad2	179	WHERE list_id = :id;
32cfe906	180	name = malloc(0);
	181	id_to_name(id, "LIST", &name);
	182	strcpy(barg0, name);
	183	strcpy(barg1, argv[1]);
	184	id = (int) argv[2];
	185	if (!strcmp(barg1, "USER")) {
	186	id_to_name(id, barg1, &name);
	187	} else if (!strcmp(barg1, "LIST")) {
	188	id_to_name(id, barg1, &name);
	189	} else if (!strcmp(barg1, "STRING")) {
	190	id_to_name(id, barg1, &name);
	191	} else if (!strcmp(barg1, "KERBEROS")) {
	192	id_to_name(id, "STRING", &name);
	193	}
	194	strcpy(barg2, name);
	195	free(name);
	196	beforec = 4;
	197	} /* else
	198	com_err(whoami, 0, "unknown table in incremental_before"); */
a313cad2	199	}
32cfe906	200
	201
	202	incremental_clear_before()
	203	{
	204	beforec = 0;
	205	}
	206
	207	incremental_clear_after()
	208	{
	209	incremental_after("clear", 0);
	210	}
	211
	212
	213
a313cad2	214	incremental_after(table, qual, argv)
a313cad2	215	char *table;
45bf7573	216	EXEC SQL BEGIN DECLARE SECTION;
a313cad2	217	char *qual;
a313cad2	218	EXEC SQL END DECLARE SECTION;
32cfe906	219	char **argv;
a313cad2	220	{
32cfe906	221	char buffer[2048], *name;
a313cad2	222	EXEC SQL BEGIN DECLARE SECTION;
	223	int id, i;
	224	EXEC SQL END DECLARE SECTION;
32cfe906	225	struct iupdate *iu;
	226	char **copy_argv();
	227
	228	if (!strcmp(table, "users")) {
45bf7573	229	EXEC SQL SELECT login, CHAR(uid), shell, last, first, middle,
45bf7573	230	CHAR(status), clearid, type
a313cad2	231	INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5,
	232	:aarg6, :aarg7, :aarg8
	233	FROM users WHERE :qual;
32cfe906	234	afterc = 9;
32cfe906	235	} else if (!strcmp(table, "machine")) {
a313cad2	236	EXEC SQL SELECT name, type INTO :aarg0, :aarg1
a313cad2	237	FROM machine WHERE :qual;
32cfe906	238	afterc = 2;
32cfe906	239	} else if (!strcmp(table, "cluster")) {
45bf7573	240	EXEC SQL SELECT name, description, location
45bf7573	241	INTO :aarg0, :aarg1, :aarg2
a313cad2	242	FROM cluster WHERE :qual;
32cfe906	243	afterc = 3;
	244	} else if (!strcmp(table, "mcmap")) {
	245	strcpy(aarg0, argv[0]);
	246	strcpy(aarg1, argv[1]);
	247	afterc = 2;
	248	} else if (!strcmp(table, "svc")) {
	249	strcpy(aarg0, argv[0]);
	250	strcpy(aarg1, argv[1]);
	251	strcpy(aarg2, argv[2]);
	252	afterc = 3;
	253	} else if (!strcmp(table, "filesys")) {
99e09b48	254	EXEC SQL SELECT CHAR(label), type, CHAR(mach_id), name, mount, access,
99e09b48	255	comments, CHAR(owner), CHAR(owners), CHAR(createflg), lockertype
a313cad2	256	INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6,
	257	:aarg7, :aarg8, :aarg9, :aarg10
	258	FROM filesys fs WHERE :qual;
32cfe906	259	afterc = 11;
	260	} else if (!strcmp(table, "quota")) {
	261	strcpy(aarg0, "?");
	262	strcpy(aarg1, argv[1]);
	263	strcpy(aarg2, "?");
a313cad2	264	sprintf(buffer, "%s and fs.filsys_id = q.filsys_id", qual);
32cfe906	265	qual = buffer;
45bf7573	266	EXEC SQL SELECT CHAR(q.quota), fs.name INTO :aarg3, :aarg4
a313cad2	267	FROM quota q, filesys fs WHERE :qual;
32cfe906	268	afterc = 5;
32cfe906	269	} else if (!strcmp(table, "list")) {
45bf7573	270	EXEC SQL SELECT name, CHAR(active), CHAR(publicflg), CHAR(hidden),
	271	CHAR(maillist), CHAR(grouplist), CHAR(gid), acl_type,
	272	CHAR(acl_id), description
a313cad2	273	INTO :aarg0, :aarg1, :aarg2, :aarg3, :aarg4, :aarg5, :aarg6,
	274	:aarg7, :aarg8, :aarg9
	275	FROM list WHERE :qual;
32cfe906	276	afterc = 10;
	277	} else if (!strcmp(table, "members")) {
	278	id = (int) argv[0];
45bf7573	279	EXEC SQL SELECT CHAR(grouplist) INTO :aarg3 FROM list
a313cad2	280	WHERE list_id = :id;
32cfe906	281	name = malloc(0);
	282	id_to_name(id, "LIST", &name);
	283	strcpy(aarg0, name);
	284	strcpy(aarg1, argv[1]);
	285	id = (int) argv[2];
	286	if (!strcmp(aarg1, "USER")) {
	287	id_to_name(id, aarg1, &name);
	288	} else if (!strcmp(aarg1, "LIST")) {
	289	id_to_name(id, aarg1, &name);
	290	} else if (!strcmp(aarg1, "STRING")) {
	291	id_to_name(id, aarg1, &name);
	292	} else if (!strcmp(aarg1, "KERBEROS")) {
	293	id_to_name(id, "STRING", &name);
	294	}
	295	strcpy(aarg2, name);
	296	free(name);
	297	afterc = 4;
	298	} else if (!strcmp(table, "clear")) {
	299	afterc = 0;
	300	table = beforetable;
	301	} /* else
	302	com_err(whoami, 0, "unknown table in incremental_after"); */
	303
	304	iu = (struct iupdate *) malloc(sizeof(struct iupdate));
	305	iu->table = strsave(table);
	306	iu->beforec = beforec;
	307	iu->before = copy_argv(before, beforec);
	308	iu->afterc = afterc;
	309	iu->after = copy_argv(after, afterc);
	310	sq_save_data(incremental_sq, iu);
	311
	312	#ifdef DEBUG
	313	sprintf(buffer, "INCREMENTAL(%s, [", table);
	314	for (i = 0; i < beforec; i++) {
	315	if (i == 0)
	316	strcat(buffer, strtrim(before[0]));
	317	else {
	318	strcat(buffer, ", ");
	319	strcat(buffer, strtrim(before[i]));
	320	}
	321	}
	322	strcat(buffer, "], [");
	323	for (i = 0; i < afterc; i++) {
	324	if (i == 0)
	325	strcat(buffer, strtrim(after[0]));
	326	else {
	327	strcat(buffer, ", ");
	328	strcat(buffer, strtrim(after[i]));
	329	}
	330	}
	331	strcat(buffer, "])");
	332	com_err(whoami, 0, buffer);
	333	#endif DEBUG
a313cad2	334	}
32cfe906	335
	336
	337	/* Called when the current transaction is committed to start any queued
	338	* incremental updates. This caches the update table the first time it
	339	* is called.
	340	*/
	341
	342	struct inc_cache {
	343	struct inc_cache *next;
	344	char *table;
	345	char *service;
	346	};
	347
	348
	349	incremental_update()
	350	{
	351	static int inited = 0;
	352	static struct inc_cache *cache;
	353	struct inc_cache *c;
	354	EXEC SQL BEGIN DECLARE SECTION;
	355	char tab[17], serv[17];
	356	EXEC SQL END DECLARE SECTION;
	357	struct iupdate *iu;
	358
	359	if (!inited) {
	360	inited++;
	361
45bf7573	362	EXEC SQL DECLARE inc CURSOR FOR SELECT tablename, service FROM incremental;
32cfe906	363	EXEC SQL OPEN inc;
	364	while (1) {
	365	EXEC SQL FETCH inc INTO :tab, :serv;
	366	if (sqlca.sqlcode != 0) break;
	367	c = (struct inc_cache *)malloc(sizeof(struct inc_cache));
	368	c->next = cache;
	369	c->table = strsave(strtrim(tab));
	370	c->service = strsave(strtrim(serv));
	371	cache = c;
	372	}
	373	EXEC SQL CLOSE inc;
	374	}
	375
	376	while (sq_remove_data(incremental_sq, &iu)) {
	377	for (c = cache; c; c = c->next) {
	378	if (!strcmp(c->table, iu->table)) {
	379	iu->service = c->service;
	380	sq_save_data(incremental_exec, iu);
	381	}
	382	}
	383	}
	384	if (inc_running == 0)
	385	next_incremental();
	386	}
	387
	388
	389	next_incremental()
	390	{
	391	struct iupdate *iu;
	392	char argv[MAXARGC 2 + 4], cafter[3], cbefore[3], prog[BUFSIZ];
	393	int i;
	394
	395	if (incremental_exec == NULL)
	396	incremental_init();
	397
	398	if (sq_empty(incremental_exec) \|\|
	399	(inc_running && now - inc_started < INC_TIMEOUT))
	400	return;
	401
	402	if (inc_running)
	403	com_err(whoami, 0, "incremental timeout on pid %d", inc_pid);
	404
	405	sq_remove_data(incremental_exec, &iu);
	406	argv[1] = iu->table;
	407	sprintf(cbefore, "%d", iu->beforec);
	408	argv[2] = cbefore;
	409	sprintf(cafter, "%d", iu->afterc);
	410	argv[3] = cafter;
	411	for (i = 0; i < iu->beforec; i++)
	412	argv[4 + i] = iu->before[i];
	413	for (i = 0; i < iu->afterc; i++)
	414	argv[4 + iu->beforec + i] = iu->after[i];
	415
	416	sprintf(prog, "%s/%s.incr", BIN_DIR, iu->service);
	417	#ifdef DEBUG
	418	com_err(whoami, 0, "forking %s", prog);
	419	#endif
	420	argv[0] = prog;
	421	argv[4 + iu->beforec + iu->afterc] = 0;
	422	inc_pid = vfork();
	423	switch (inc_pid) {
	424	case 0:
	425	execv(prog, argv);
	426	exit(1);
427	case -1:
428	com_err(whoami, 0, "Failed to start incremental update");
429	break;
430	default:
431	inc_running = 1;
432	inc_started = now;
433	}
434
435	free_argv(iu->before, iu->beforec);
436	free_argv(iu->after, iu->afterc);
437	free(iu->table);
438	free(iu);
439
440	}
441
442
443	/* Called when the current transaction is aborted to throw away any queued
444	* incremental updates
445	*/
446
447	incremental_flush()
448	{
449	struct iupdate *iu;
450
451	while (sq_get_data(incremental_sq, &iu)) {
452	free_argv(iu->before, iu->beforec);
453	free_argv(iu->after, iu->afterc);
454	free(iu->table);
455	free(iu);
456	}
457	sq_destroy(incremental_sq);
458	incremental_sq = sq_create();
459	}
460
461
462	char **copy_argv(argv, argc)
463	char **argv;
464	int argc;
465	{
466	char ret = (char )malloc(sizeof(char ) argc);
467	while (--argc >= 0)
468	ret[argc] = strsave(strtrim(argv[argc]));
469	return(ret);
470	}
471
472	free_argv(argv, argc)
473	char **argv;
474	int argc;
475	{
476	while (--argc >= 0)
477	free(argv[argc]);
478	free(argv);
479	}