[moira.git] / server / increment.qc

/*
 *	$Source$
 *	$Author$
 *	$Header$
 *
 *	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_qrtn_qc = "$Header$";
#endif lint

#include <mit-copyright.h>
#include <moira.h>
#include "query.h"
#include "mr_server.h"

extern char *whoami;
char *malloc();

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

#define MAXARGC 15

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

/* structures to save after args */
static char afterb[MAXARGC][ARGLEN];
static char *after[MAXARGC];
##char *aarg0, *aarg1, *aarg2, *aarg3, *aarg4;
##char *aarg5, *aarg6, *aarg7, *aarg8, *aarg9;
##char *aarg10, *aarg11, *aarg12, *aarg13, *aarg14;
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;
##char *qual;
char **argv;
##{
##  int id;
    char buffer[512], *name;

    beforetable = table;

    if (!strcmp(table, "users")) {
##	retrieve (barg0 = u.login, barg1 = text(u.uid),
##		  barg2 = u.shell, barg3 = u.last, barg4 = u.first,
##		  barg5 = u.middle, barg6 = text(u.status),
##		  barg7 = u.mit_id, barg8 = u.mit_year)
##		where qual
	beforec = 9;
    } else if (!strcmp(table, "machine")) {
##	retrieve (barg0 = m.name, barg1 = m.type) where qual
	beforec = 2;
    } else if (!strcmp(table, "cluster")) {
##	retrieve (barg0 = c.name, barg1 = c.desc, barg2 = c.location)
##	  	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")) {
##	range of fs is filesys
##	retrieve (barg0 = fs.label, barg1 = fs.type, barg2 = text(fs.mach_id),
##		  barg3 = fs.name, barg4 = fs.mount, barg5 = fs.access,
##		  barg6 = fs.comments, barg7 = text(fs.owner),
##		  barg8 = text(fs.owners), barg9 = text(fs.createflg),
##		  barg10 = fs.lockertype)
##	  where qual
	beforec = 11;
    } else if (!strcmp(table, "quota")) {
	barg0 = "?";
	barg1 = argv[1];
	barg2 = "?";
	sprintf(buffer, "%s and filesys.filsys_id = q.filsys_id", qual);
	qual = buffer;
##	range of q is quota
##	retrieve (barg3 = text(q.quota), barg4 = filesys.name) where qual
	beforec = 5;
    } else if (!strcmp(table, "list")) {
##	retrieve (barg0 = l.name, barg1 = text(l.active),
##		  barg2 = text(l.public), barg3 = text(l.hidden),
##		  barg4 = text(l.maillist), barg5 = text(l.group),
##		  barg6 = text(l.gid), barg7 = l.acl_type,
##		  barg8 = text(l.acl_id), barg9 = l.desc)
##	  where qual
	beforec = 10;
    } else if (!strcmp(table, "members")) {
	id = (int) argv[0];
	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 = 3;
    } /* 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;
##char *qual;
char **argv;
##{
    char buffer[2048], *name;
##  int id, i;
    struct iupdate *iu;
    char **copy_argv();

    if (!strcmp(table, "users")) {
##	retrieve (aarg0 = u.login, aarg1 = text(u.uid),
##		  aarg2 = u.shell, aarg3 = u.last, aarg4 = u.first,
##		  aarg5 = u.middle, aarg6 = text(u.status),
##		  aarg7 = u.mit_id, aarg8 = u.mit_year)
##		where qual
	afterc = 9;
    } else if (!strcmp(table, "machine")) {
##	retrieve (aarg0 = m.name, aarg1 = m.type) where qual
	afterc = 2;
    } else if (!strcmp(table, "cluster")) {
##	retrieve (aarg0 = c.name, aarg1 = c.desc, aarg2 = c.location)
##	  	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")) {
##	range of fs is filesys
##	retrieve (aarg0 = fs.label, aarg1 = fs.type,
##		  aarg2 = text(fs.mach_id),
##		  aarg3 = fs.name, aarg4 = fs.mount, aarg5 = fs.access,
##		  aarg6 = fs.comments, aarg7 = text(fs.owner),
##		  aarg8 = text(fs.owners), aarg9 = text(fs.createflg),
##		  aarg10 = fs.lockertype)
##	  where qual
	afterc = 11;
    } else if (!strcmp(table, "quota")) {
	strcpy(aarg0, "?");
	strcpy(aarg1, argv[1]);
	strcpy(aarg2, "?");
	sprintf(buffer, "%s and filesys.filsys_id = q.filsys_id", qual);
	qual = buffer;
##	range of q is quota
##	retrieve (aarg3 = text(q.quota), aarg4 = filesys.name) where qual
	afterc = 5;
    } else if (!strcmp(table, "list")) {
##	retrieve (aarg0 = l.name, aarg1 = text(l.active),
##		  aarg2 = text(l.public), aarg3 = text(l.hidden),
##		  aarg4 = text(l.maillist), aarg5 = text(l.group),
##		  aarg6 = text(l.gid), aarg7 = l.acl_type,
##		  aarg8 = text(l.acl_id), aarg9 = l.desc)
##	  where qual
	afterc = 10;
    } else if (!strcmp(table, "members")) {
	id = (int) argv[0];
	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 = 3;
    } 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;
##  char tab[17], serv[17];
    struct iupdate *iu;

    if (!inited) {
	inited++;

##	retrieve (tab = incremental.table, serv = incremental.service) {
    	    c = (struct inc_cache *)malloc(sizeof(struct inc_cache));
	    c->next = cache;
	    c->table = strsave(strtrim(tab));
	    c->service = strsave(strtrim(serv));
	    cache = c;
##	}
    }

    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
7593ae52	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_qrtn_qc = "$Header$";
	14	#endif lint
	15
	16	#include <mit-copyright.h>
d548a4e7	17	#include <moira.h>
7593ae52	18	#include "query.h"
d548a4e7	19	#include "mr_server.h"
7593ae52	20
7593ae52	21	extern char *whoami;
77de3714	22	char *malloc();
	23
	24	int inc_pid = 0;
	25	int inc_running = 0;
	26	time_t inc_started;
7593ae52	27
	28	#define MAXARGC 15
	29
	30	/* structures to save before args */
	31	static char beforeb[MAXARGC][ARGLEN];
	32	static char *before[MAXARGC];
	33	##char barg0, barg1, barg2, barg3, *barg4;
	34	##char barg5, barg6, barg7, barg8, *barg9;
	35	##char barg10, barg11, barg12, barg13, *barg14;
	36	static int beforec;
	37	static char *beforetable;
	38
	39	/* structures to save after args */
	40	static char afterb[MAXARGC][ARGLEN];
	41	static char *after[MAXARGC];
	42	##char aarg0, aarg1, aarg2, aarg3, *aarg4;
	43	##char aarg5, aarg6, aarg7, aarg8, *aarg9;
	44	##char aarg10, aarg11, aarg12, aarg13, *aarg14;
	45	static int afterc;
	46
	47	/* structures to save entire sets of incremental changes */
0ce1f730	48	struct save_queue *incremental_sq = NULL;
77de3714	49	struct save_queue *incremental_exec = NULL;
7593ae52	50	struct iupdate {
	51	char *table;
	52	int beforec;
	53	char **before;
	54	int afterc;
	55	char **after;
77de3714	56	char *service;
7593ae52	57	};
	58
	59
	60	incremental_init()
	61	{
	62	int i;
	63
	64	for (i = 0; i < MAXARGC; i++) {
	65	before[i] = &beforeb[i][0];
	66	after[i] = &afterb[i][0];
	67	}
	68	barg0 = before[0];
	69	barg1 = before[1];
	70	barg2 = before[2];
	71	barg3 = before[3];
	72	barg4 = before[4];
	73	barg5 = before[5];
	74	barg6 = before[6];
	75	barg7 = before[7];
	76	barg8 = before[8];
	77	barg9 = before[9];
	78	barg10 = before[10];
	79	barg11 = before[11];
	80	barg12 = before[12];
	81	barg13 = before[13];
	82	barg14 = before[14];
	83	aarg0 = after[0];
	84	aarg1 = after[1];
	85	aarg2 = after[2];
	86	aarg3 = after[3];
	87	aarg4 = after[4];
	88	aarg5 = after[5];
	89	aarg6 = after[6];
	90	aarg7 = after[7];
	91	aarg8 = after[8];
	92	aarg9 = after[9];
	93	aarg10 = after[10];
	94	aarg11 = after[11];
	95	aarg12 = after[12];
	96	aarg13 = after[13];
	97	aarg14 = after[14];
0ce1f730	98	if (incremental_sq == NULL)
0ce1f730	99	incremental_sq = sq_create();
77de3714	100	if (incremental_exec == NULL)
77de3714	101	incremental_exec = sq_create();
7593ae52	102	}
	103
	104
	105	##incremental_before(table, qual, argv)
	106	##char *table;
	107	##char *qual;
	108	char **argv;
	109	##{
	110	## int id;
77de3714	111	char buffer[512], *name;
7593ae52	112
	113	beforetable = table;
	114
	115	if (!strcmp(table, "users")) {
	116	## retrieve (barg0 = u.login, barg1 = text(u.uid),
	117	## barg2 = u.shell, barg3 = u.last, barg4 = u.first,
	118	## barg5 = u.middle, barg6 = text(u.status),
	119	## barg7 = u.mit_id, barg8 = u.mit_year)
	120	## where qual
	121	beforec = 9;
	122	} else if (!strcmp(table, "machine")) {
	123	## retrieve (barg0 = m.name, barg1 = m.type) where qual
	124	beforec = 2;
	125	} else if (!strcmp(table, "cluster")) {
	126	## retrieve (barg0 = c.name, barg1 = c.desc, barg2 = c.location)
	127	## where qual
	128	beforec = 3;
	129	} else if (!strcmp(table, "mcmap")) {
	130	strcpy(barg0, argv[0]);
	131	strcpy(barg1, argv[1]);
	132	beforec = 2;
	133	} else if (!strcmp(table, "svc")) {
	134	strcpy(barg0, argv[0]);
	135	strcpy(barg1, argv[1]);
	136	strcpy(barg2, argv[2]);
	137	beforec = 3;
	138	} else if (!strcmp(table, "filesys")) {
	139	## range of fs is filesys
	140	## retrieve (barg0 = fs.label, barg1 = fs.type, barg2 = text(fs.mach_id),
	141	## barg3 = fs.name, barg4 = fs.mount, barg5 = fs.access,
	142	## barg6 = fs.comments, barg7 = text(fs.owner),
	143	## barg8 = text(fs.owners), barg9 = text(fs.createflg),
	144	## barg10 = fs.lockertype)
	145	## where qual
	146	beforec = 11;
368be132	147	} else if (!strcmp(table, "quota")) {
be938d1d	148	barg0 = "?";
	149	barg1 = argv[1];
	150	barg2 = "?";
368be132	151	sprintf(buffer, "%s and filesys.filsys_id = q.filsys_id", qual);
7593ae52	152	qual = buffer;
368be132	153	## range of q is quota
	154	## retrieve (barg3 = text(q.quota), barg4 = filesys.name) where qual
	155	beforec = 5;
7593ae52	156	} else if (!strcmp(table, "list")) {
	157	## retrieve (barg0 = l.name, barg1 = text(l.active),
	158	## barg2 = text(l.public), barg3 = text(l.hidden),
	159	## barg4 = text(l.maillist), barg5 = text(l.group),
	160	## barg6 = text(l.gid), barg7 = l.acl_type,
	161	## barg8 = text(l.acl_id), barg9 = l.desc)
	162	## where qual
	163	beforec = 10;
	164	} else if (!strcmp(table, "members")) {
	165	id = (int) argv[0];
77de3714	166	name = malloc(0);
	167	id_to_name(id, "LIST", &name);
	168	strcpy(barg0, name);
7593ae52	169	strcpy(barg1, argv[1]);
	170	id = (int) argv[2];
	171	if (!strcmp(barg1, "USER")) {
77de3714	172	id_to_name(id, barg1, &name);
7593ae52	173	} else if (!strcmp(barg1, "LIST")) {
77de3714	174	id_to_name(id, barg1, &name);
7593ae52	175	} else if (!strcmp(barg1, "STRING")) {
77de3714	176	id_to_name(id, barg1, &name);
7593ae52	177	} else if (!strcmp(barg1, "KERBEROS")) {
77de3714	178	id_to_name(id, "STRING", &name);
7593ae52	179	}
77de3714	180	strcpy(barg2, name);
77de3714	181	free(name);
7593ae52	182	beforec = 3;
	183	} /* else
	184	com_err(whoami, 0, "unknown table in incremental_before"); */
	185	##}
	186
	187
	188	incremental_clear_before()
	189	{
	190	beforec = 0;
	191	}
	192
	193	incremental_clear_after()
	194	{
	195	incremental_after("clear", 0);
	196	}
	197
	198
	199
	200	##incremental_after(table, qual, argv)
	201	##char *table;
	202	##char *qual;
	203	char **argv;
	204	##{
77de3714	205	char buffer[2048], *name;
7593ae52	206	## int id, i;
	207	struct iupdate *iu;
	208	char **copy_argv();
	209
	210	if (!strcmp(table, "users")) {
	211	## retrieve (aarg0 = u.login, aarg1 = text(u.uid),
	212	## aarg2 = u.shell, aarg3 = u.last, aarg4 = u.first,
	213	## aarg5 = u.middle, aarg6 = text(u.status),
	214	## aarg7 = u.mit_id, aarg8 = u.mit_year)
	215	## where qual
	216	afterc = 9;
	217	} else if (!strcmp(table, "machine")) {
	218	## retrieve (aarg0 = m.name, aarg1 = m.type) where qual
	219	afterc = 2;
	220	} else if (!strcmp(table, "cluster")) {
	221	## retrieve (aarg0 = c.name, aarg1 = c.desc, aarg2 = c.location)
	222	## where qual
	223	afterc = 3;
	224	} else if (!strcmp(table, "mcmap")) {
	225	strcpy(aarg0, argv[0]);
	226	strcpy(aarg1, argv[1]);
	227	afterc = 2;
	228	} else if (!strcmp(table, "svc")) {
	229	strcpy(aarg0, argv[0]);
	230	strcpy(aarg1, argv[1]);
	231	strcpy(aarg2, argv[2]);
	232	afterc = 3;
	233	} else if (!strcmp(table, "filesys")) {
	234	## range of fs is filesys
	235	## retrieve (aarg0 = fs.label, aarg1 = fs.type,
	236	## aarg2 = text(fs.mach_id),
	237	## aarg3 = fs.name, aarg4 = fs.mount, aarg5 = fs.access,
	238	## aarg6 = fs.comments, aarg7 = text(fs.owner),
	239	## aarg8 = text(fs.owners), aarg9 = text(fs.createflg),
	240	## aarg10 = fs.lockertype)
	241	## where qual
	242	afterc = 11;
368be132	243	} else if (!strcmp(table, "quota")) {
be938d1d	244	strcpy(aarg0, "?");
7593ae52	245	strcpy(aarg1, argv[1]);
be938d1d	246	strcpy(aarg2, "?");
368be132	247	sprintf(buffer, "%s and filesys.filsys_id = q.filsys_id", qual);
7593ae52	248	qual = buffer;
368be132	249	## range of q is quota
	250	## retrieve (aarg3 = text(q.quota), aarg4 = filesys.name) where qual
	251	afterc = 5;
7593ae52	252	} else if (!strcmp(table, "list")) {
	253	## retrieve (aarg0 = l.name, aarg1 = text(l.active),
	254	## aarg2 = text(l.public), aarg3 = text(l.hidden),
	255	## aarg4 = text(l.maillist), aarg5 = text(l.group),
	256	## aarg6 = text(l.gid), aarg7 = l.acl_type,
	257	## aarg8 = text(l.acl_id), aarg9 = l.desc)
	258	## where qual
	259	afterc = 10;
	260	} else if (!strcmp(table, "members")) {
	261	id = (int) argv[0];
77de3714	262	name = malloc(0);
	263	id_to_name(id, "LIST", &name);
	264	strcpy(aarg0, name);
7593ae52	265	strcpy(aarg1, argv[1]);
	266	id = (int) argv[2];
	267	if (!strcmp(aarg1, "USER")) {
77de3714	268	id_to_name(id, aarg1, &name);
7593ae52	269	} else if (!strcmp(aarg1, "LIST")) {
77de3714	270	id_to_name(id, aarg1, &name);
7593ae52	271	} else if (!strcmp(aarg1, "STRING")) {
77de3714	272	id_to_name(id, aarg1, &name);
7593ae52	273	} else if (!strcmp(aarg1, "KERBEROS")) {
77de3714	274	id_to_name(id, "STRING", &name);
7593ae52	275	}
77de3714	276	strcpy(aarg2, name);
77de3714	277	free(name);
7593ae52	278	afterc = 3;
	279	} else if (!strcmp(table, "clear")) {
	280	afterc = 0;
	281	table = beforetable;
	282	} /* else
	283	com_err(whoami, 0, "unknown table in incremental_after"); */
	284
	285	iu = (struct iupdate *) malloc(sizeof(struct iupdate));
77de3714	286	iu->table = strsave(table);
7593ae52	287	iu->beforec = beforec;
	288	iu->before = copy_argv(before, beforec);
	289	iu->afterc = afterc;
	290	iu->after = copy_argv(after, afterc);
	291	sq_save_data(incremental_sq, iu);
	292
	293	#ifdef DEBUG
	294	sprintf(buffer, "INCREMENTAL(%s, [", table);
	295	for (i = 0; i < beforec; i++) {
	296	if (i == 0)
	297	strcat(buffer, strtrim(before[0]));
	298	else {
	299	strcat(buffer, ", ");
	300	strcat(buffer, strtrim(before[i]));
	301	}
	302	}
	303	strcat(buffer, "], [");
	304	for (i = 0; i < afterc; i++) {
	305	if (i == 0)
	306	strcat(buffer, strtrim(after[0]));
	307	else {
	308	strcat(buffer, ", ");
	309	strcat(buffer, strtrim(after[i]));
	310	}
	311	}
	312	strcat(buffer, "])");
	313	com_err(whoami, 0, buffer);
	314	#endif DEBUG
	315	##}
	316
	317
	318	/* Called when the current transaction is committed to start any queued
77de3714	319	* incremental updates. This caches the update table the first time it
77de3714	320	* is called.
7593ae52	321	*/
7593ae52	322
0ce1f730	323	struct inc_cache {
	324	struct inc_cache *next;
	325	char *table;
	326	char *service;
	327	};
	328
	329
77de3714	330	incremental_update()
77de3714	331	{
0ce1f730	332	static int inited = 0;
	333	static struct inc_cache *cache;
	334	struct inc_cache *c;
	335	## char tab[17], serv[17];
77de3714	336	struct iupdate *iu;
0ce1f730	337
	338	if (!inited) {
	339	inited++;
	340
	341	## retrieve (tab = incremental.table, serv = incremental.service) {
	342	c = (struct inc_cache *)malloc(sizeof(struct inc_cache));
	343	c->next = cache;
4ccf9fd5	344	c->table = strsave(strtrim(tab));
4ccf9fd5	345	c->service = strsave(strtrim(serv));
0ce1f730	346	cache = c;
0ce1f730	347	## }
7593ae52	348	}
0ce1f730	349
77de3714	350	while (sq_remove_data(incremental_sq, &iu)) {
	351	for (c = cache; c; c = c->next) {
	352	if (!strcmp(c->table, iu->table)) {
	353	iu->service = c->service;
	354	sq_save_data(incremental_exec, iu);
0ce1f730	355	}
	356	}
	357	}
77de3714	358	if (inc_running == 0)
	359	next_incremental();
	360	}
	361
	362
	363	next_incremental()
	364	{
	365	struct iupdate *iu;
	366	char argv[MAXARGC 2 + 4], cafter[3], cbefore[3], prog[BUFSIZ];
	367	int i;
	368
954686cb	369	if (incremental_exec == NULL)
	370	incremental_init();
	371
77de3714	372	if (sq_empty(incremental_exec) \|\|
	373	(inc_running && now - inc_started < INC_TIMEOUT))
	374	return;
	375
	376	if (inc_running)
	377	com_err(whoami, 0, "incremental timeout on pid %d", inc_pid);
	378
	379	sq_remove_data(incremental_exec, &iu);
	380	argv[1] = iu->table;
	381	sprintf(cbefore, "%d", iu->beforec);
	382	argv[2] = cbefore;
	383	sprintf(cafter, "%d", iu->afterc);
	384	argv[3] = cafter;
	385	for (i = 0; i < iu->beforec; i++)
	386	argv[4 + i] = iu->before[i];
	387	for (i = 0; i < iu->afterc; i++)
	388	argv[4 + iu->beforec + i] = iu->after[i];
	389
	390	sprintf(prog, "%s/%s.incr", BIN_DIR, iu->service);
	391	#ifdef DEBUG
	392	com_err(whoami, 0, "forking %s", prog);
	393	#endif
	394	argv[0] = prog;
	395	argv[4 + iu->beforec + iu->afterc] = 0;
	396	inc_pid = vfork();
	397	switch (inc_pid) {
	398	case 0:
	399	execv(prog, argv);
	400	exit(1);
	401	case -1:
	402	com_err(whoami, 0, "Failed to start incremental update");
	403	break;
	404	default:
	405	inc_running = 1;
	406	inc_started = now;
	407	}
	408
	409	free_argv(iu->before, iu->beforec);
	410	free_argv(iu->after, iu->afterc);
	411	free(iu->table);
	412	free(iu);
	413
	414	}
7593ae52	415
	416
	417	/* Called when the current transaction is aborted to throw away any queued
	418	* incremental updates
	419	*/
	420
	421	incremental_flush()
	422	{
	423	struct iupdate *iu;
	424
	425	while (sq_get_data(incremental_sq, &iu)) {
	426	free_argv(iu->before, iu->beforec);
	427	free_argv(iu->after, iu->afterc);
77de3714	428	free(iu->table);
7593ae52	429	free(iu);
	430	}
	431	sq_destroy(incremental_sq);
	432	incremental_sq = sq_create();
	433	}
	434
	435
	436	char **copy_argv(argv, argc)
	437	char **argv;
	438	int argc;
	439	{
	440	char ret = (char )malloc(sizeof(char ) argc);
	441	while (--argc >= 0)
	442	ret[argc] = strsave(strtrim(argv[argc]));
	443	return(ret);
	444	}
	445
	446	free_argv(argv, argc)
	447	char **argv;
	448	int argc;
	449	{
	450	while (--argc >= 0)
	451	free(argv[argc]);
	452	free(argv);
	453	}