int
main(void)
{
struct ohash h;
struct ohash_info i;
i.alloc = xmalloc;
i.calloc = xcalloc;
i.free = xfree;
ohash_init(&h, 2, &i);
ohash_delete(&h);
return 0;
}
/*
* Var_Init
* Initialize the module
*/
void
Var_Init(void)
{
ohash_init(&global_variables, 10, &var_info);
set_magic_shell_variable();
errorIsOkay = true;
Var_setCheckEnvFirst(false);
VarModifiers_Init();
Buf_Init(&subst_buffer, MAKE_BSIZE);
}
void
Targ_Init(void)
{
/* A small make file already creates 200 targets. */
ohash_init(&targets, 10, &gnode_info);
begin_node = Targ_FindConstantNode(NODE_BEGIN, TARG_CREATE);
begin_node->type |= OP_DUMMY | OP_NOTMAIN | OP_NODEFAULT;
end_node = Targ_FindConstantNode(NODE_END, TARG_CREATE);
end_node->type |= OP_DUMMY | OP_NOTMAIN | OP_NODEFAULT;
interrupt_node = Targ_FindConstantNode(NODE_INTERRUPT, TARG_CREATE);
interrupt_node->type |= OP_DUMMY | OP_NOTMAIN | OP_NODEFAULT;
DEFAULT = Targ_FindConstantNode(NODE_DEFAULT, TARG_CREATE);
DEFAULT->type |= OP_DUMMY | OP_NOTMAIN| OP_TRANSFORM | OP_NODEFAULT;
}
void
init_macros(void)
{
ohash_init(¯os, 10, ¯o_info);
}
/*-
*-----------------------------------------------------------------------
* Make_Run --
* Initialize the nodes to remake and the list of nodes which are
* ready to be made by doing a breadth-first traversal of the graph
* starting from the nodes in the given list. Once this traversal
* is finished, all the 'leaves' of the graph are in the toBeMade
* queue.
* Using this queue and the Job module, work back up the graph,
* calling on MakeStartJobs to keep the job table as full as
* possible.
*
* Results:
* true if work was done. false otherwise.
*
* Side Effects:
* The must_make field of all nodes involved in the creation of the given
* targets is set to 1. The toBeMade list is set to contain all the
* 'leaves' of these subgraphs.
*-----------------------------------------------------------------------
*/
bool
Make_Run(Lst targs) /* the initial list of targets */
{
int errors; /* Number of errors the Job module reports */
GNode *gn;
unsigned int i;
bool cycle;
/* wild guess at initial sizes */
Array_Init(&toBeMade, 500);
Array_Init(&examine, 150);
ohash_init(&targets, 10, &gnode_info);
if (DEBUG(PARALLEL))
random_setup();
add_targets_to_make(targs);
if (queryFlag) {
/*
* We wouldn't do any work unless we could start some jobs in
* the next loop... (we won't actually start any, of course,
* this is just to see if any of the targets was out of date)
*/
return MakeStartJobs();
} else {
/*
* Initialization. At the moment, no jobs are running and until
* some get started, nothing will happen since the remaining
* upward traversal of the graph is performed by the routines
* in job.c upon the finishing of a job. So we fill the Job
* table as much as we can before going into our loop.
*/
(void)MakeStartJobs();
}
/*
* Main Loop: The idea here is that the ending of jobs will take
* care of the maintenance of data structures and the waiting for output
* will cause us to be idle most of the time while our children run as
* much as possible. Because the job table is kept as full as possible,
* the only time when it will be empty is when all the jobs which need
* running have been run, so that is the end condition of this loop.
* Note that the Job module will exit if there were any errors unless
* the keepgoing flag was given.
*/
while (!Job_Empty()) {
handle_running_jobs();
(void)MakeStartJobs();
}
errors = Job_Finish();
cycle = false;
for (gn = ohash_first(&targets, &i); gn != NULL;
gn = ohash_next(&targets, &i)) {
if (has_been_built(gn))
continue;
cycle = true;
errors++;
printf("Error: target %s unaccounted for (%s)\n",
gn->name, status_to_string(gn));
}
/*
* Print the final status of each target. E.g. if it wasn't made
* because some inferior reported an error.
*/
Lst_ForEach(targs, MakePrintStatus, &cycle);
if (errors)
Fatal("Errors while building");
return true;
}
int
mansearch(const struct mansearch *search,
const struct manpaths *paths,
int argc, char *argv[],
struct manpage **res, size_t *sz)
{
int fd, rc, c, indexbit;
int64_t pageid;
uint64_t outbit, iterbit;
char buf[PATH_MAX];
char *sql;
struct manpage *mpage;
struct expr *e, *ep;
sqlite3 *db;
sqlite3_stmt *s, *s2;
struct match *mp;
struct ohash_info info;
struct ohash htab;
unsigned int idx;
size_t i, j, cur, maxres;
info.calloc = hash_calloc;
info.alloc = hash_alloc;
info.free = hash_free;
info.key_offset = offsetof(struct match, pageid);
*sz = cur = maxres = 0;
sql = NULL;
*res = NULL;
fd = -1;
e = NULL;
rc = 0;
if (0 == argc)
goto out;
if (NULL == (e = exprcomp(search, argc, argv)))
goto out;
outbit = 0;
if (NULL != search->outkey) {
for (indexbit = 0, iterbit = 1;
indexbit < mansearch_keymax;
indexbit++, iterbit <<= 1) {
if (0 == strcasecmp(search->outkey,
mansearch_keynames[indexbit])) {
outbit = iterbit;
break;
}
}
}
/*
* Save a descriptor to the current working directory.
* Since pathnames in the "paths" variable might be relative,
* and we'll be chdir()ing into them, we need to keep a handle
* on our current directory from which to start the chdir().
*/
if (NULL == getcwd(buf, PATH_MAX)) {
perror("getcwd");
goto out;
} else if (-1 == (fd = open(buf, O_RDONLY, 0))) {
perror(buf);
goto out;
}
sql = sql_statement(e);
/*
* Loop over the directories (containing databases) for us to
* search.
* Don't let missing/bad databases/directories phase us.
* In each, try to open the resident database and, if it opens,
* scan it for our match expression.
*/
for (i = 0; i < paths->sz; i++) {
if (-1 == fchdir(fd)) {
perror(buf);
free(*res);
break;
} else if (-1 == chdir(paths->paths[i])) {
perror(paths->paths[i]);
continue;
}
c = sqlite3_open_v2(MANDOC_DB, &db,
SQLITE_OPEN_READONLY, NULL);
if (SQLITE_OK != c) {
fprintf(stderr, "%s/%s: %s\n",
paths->paths[i], MANDOC_DB, strerror(errno));
sqlite3_close(db);
continue;
}
/*
* Define the SQL functions for substring
* and regular expression matching.
*/
c = sqlite3_create_function(db, "match", 2,
SQLITE_UTF8 | SQLITE_DETERMINISTIC,
NULL, sql_match, NULL, NULL);
assert(SQLITE_OK == c);
c = sqlite3_create_function(db, "regexp", 2,
SQLITE_UTF8 | SQLITE_DETERMINISTIC,
NULL, sql_regexp, NULL, NULL);
assert(SQLITE_OK == c);
j = 1;
c = sqlite3_prepare_v2(db, sql, -1, &s, NULL);
if (SQLITE_OK != c)
fprintf(stderr, "%s\n", sqlite3_errmsg(db));
for (ep = e; NULL != ep; ep = ep->next) {
if (NULL == ep->substr) {
SQL_BIND_BLOB(db, s, j, ep->regexp);
} else
SQL_BIND_TEXT(db, s, j, ep->substr);
if (0 == ((TYPE_Nd | TYPE_Nm) & ep->bits))
SQL_BIND_INT64(db, s, j, ep->bits);
}
memset(&htab, 0, sizeof(struct ohash));
ohash_init(&htab, 4, &info);
/*
* Hash each entry on its [unique] document identifier.
* This is a uint64_t.
* Instead of using a hash function, simply convert the
* uint64_t to a uint32_t, the hash value's type.
* This gives good performance and preserves the
* distribution of buckets in the table.
*/
while (SQLITE_ROW == (c = sqlite3_step(s))) {
pageid = sqlite3_column_int64(s, 2);
idx = ohash_lookup_memory(&htab,
(char *)&pageid, sizeof(uint64_t),
(uint32_t)pageid);
if (NULL != ohash_find(&htab, idx))
continue;
mp = mandoc_calloc(1, sizeof(struct match));
mp->pageid = pageid;
mp->form = sqlite3_column_int(s, 1);
mp->bits = sqlite3_column_int64(s, 3);
if (TYPE_Nd == outbit)
mp->desc = mandoc_strdup((const char *)
sqlite3_column_text(s, 0));
ohash_insert(&htab, idx, mp);
}
if (SQLITE_DONE != c)
fprintf(stderr, "%s\n", sqlite3_errmsg(db));
sqlite3_finalize(s);
c = sqlite3_prepare_v2(db,
"SELECT sec, arch, name, pageid FROM mlinks "
"WHERE pageid=? ORDER BY sec, arch, name",
-1, &s, NULL);
if (SQLITE_OK != c)
fprintf(stderr, "%s\n", sqlite3_errmsg(db));
c = sqlite3_prepare_v2(db,
"SELECT bits, key, pageid FROM keys "
"WHERE pageid=? AND bits & ?",
-1, &s2, NULL);
if (SQLITE_OK != c)
fprintf(stderr, "%s\n", sqlite3_errmsg(db));
for (mp = ohash_first(&htab, &idx);
NULL != mp;
mp = ohash_next(&htab, &idx)) {
if (cur + 1 > maxres) {
maxres += 1024;
*res = mandoc_reallocarray(*res,
maxres, sizeof(struct manpage));
}
mpage = *res + cur;
mpage->ipath = i;
mpage->bits = mp->bits;
mpage->sec = 10;
mpage->form = mp->form;
buildnames(mpage, db, s, mp->pageid,
paths->paths[i], mp->form);
mpage->output = TYPE_Nd & outbit ?
mp->desc : outbit ?
buildoutput(db, s2, mp->pageid, outbit) : NULL;
free(mp);
cur++;
}
sqlite3_finalize(s);
sqlite3_finalize(s2);
sqlite3_close(db);
ohash_delete(&htab);
/*
* In man(1) mode, prefer matches in earlier trees
* over matches in later trees.
*/
if (cur && search->firstmatch)
break;
}
qsort(*res, cur, sizeof(struct manpage), manpage_compare);
rc = 1;
out:
if (-1 != fd) {
if (-1 == fchdir(fd))
perror(buf);
close(fd);
}
exprfree(e);
free(sql);
*sz = cur;
return(rc);
}
