/* _unix_hot_gain(): gain ship.
*/
static void
_unix_hot_gain(u2_noun who, u2_bean mek)
{
u2_noun hox = u2_dc("scot", 'p', who);
c3_c* hox_c = u2_cr_string(hox);
c3_c* pax_c = _unix_down(u2_Host.ops_u.hom_c, hox_c + 1);
DIR* rid_u = opendir(pax_c);
if ( !rid_u ) {
if ( u2_yes == mek ) {
_unix_mkdir(pax_c);
} else return;
} else closedir(rid_u);
// uL(fprintf(uH, "GAIN %s\n", pax_c));
free(hox_c);
u2z(hox);
u2_unix_acquire(pax_c);
{
u2_uhot* hot_u = malloc(sizeof(u2_uhot));
_unix_dir_watch(&hot_u->dir_u, 0, pax_c);
u2_cr_mp(hot_u->who_mp, who);
hot_u->nex_u = u2_Host.unx_u.hot_u;
u2_Host.unx_u.hot_u = hot_u;
}
}
/* _unix_home(): find home directory from identity.
*/
static u2_uhot*
_unix_home(u2_noun who)
{
u2_unix* unx_u = &u2_Host.unx_u;
u2_uhot* hot_u;
mpz_t who_mp;
u2_cr_mp(who_mp, who);
for ( hot_u = unx_u->hot_u;
hot_u && (0 != mpz_cmp(who_mp, hot_u->who_mp));
hot_u = hot_u->nex_u )
{
// uL(fprintf(uH, "uh: %p, %s\n", hot_u, hot_u->dir_u.pax_c));
}
mpz_clear(who_mp);
return hot_u;
}
/* _unix_desk_sync_tofu(): sync out file install.
*/
static void
_unix_desk_sync_tofu(u2_udir* dir_u,
u2_noun pre,
u2_noun ext,
u2_noun mis)
{
c3_c* pox_c = _unix_file_form(dir_u, u2k(pre), u2_no, u2k(ext));
c3_c* pux_c = _unix_file_form(dir_u, u2k(pre), u2_yes, u2k(ext));
u2_ufil** fil_u;
// uL(fprintf(uH, "tofu pox_c %s op %s\n", pox_c, u2_cr_string(u2h(mis))));
fil_u = &(dir_u->fil_u);
while ( 1 ) { // XX crude!
if ( !*fil_u ||
!strcmp((*fil_u)->pax_c, pox_c) ||
!strcmp((*fil_u)->pax_c, pux_c) )
{
break;
}
else fil_u = &((*fil_u)->nex_u);
}
if ( *fil_u && (c3__del == u2h(mis)) ) {
u2_ufil* ded_u = *fil_u;
*fil_u = ded_u->nex_u;
_unix_unlink(ded_u->pax_c);
_unix_file_free(ded_u);
free(ded_u);
free(pox_c);
free(pux_c);
}
else {
u2_noun god, oat;
c3_c* pax_c;
if ( *fil_u ) {
u2_noun old = _unix_file_load(*fil_u);
c3_assert(c3__mut == u2h(mis));
god = _unix_desk_sync_udon(u2k(u2t(mis)), old);
_unix_unlink((*fil_u)->pax_c);
free((*fil_u)->pax_c);
}
else {
c3_assert(c3__ins == u2h(mis));
god = u2k(u2t(mis));
}
if ( u2_yes == u2du(god) ) {
oat = u2_cke_jam(god);
pax_c = pux_c; free(pox_c);
} else {
oat = god;
pax_c = pox_c; free(pux_c);
}
if ( *fil_u ) {
(*fil_u)->dot_c = (pax_c + ((*fil_u)->dot_c - (*fil_u)->pax_c));
(*fil_u)->pax_c = pax_c;
mpz_clear((*fil_u)->mod_mp);
u2_cr_mp((*fil_u)->mod_mp, u2A->now);
}
else {
mpz_t mod_mp;
u2_cr_mp(mod_mp, u2A->now);
*fil_u = malloc(sizeof(u2_ufil));
_unix_file_watch(*fil_u, dir_u, pax_c, mod_mp);
mpz_clear(mod_mp);
}
_unix_save((*fil_u)->pax_c, oat);
}
u2z(pre); u2z(ext); u2z(mis);
}
/* _unix_dir_update(): update directory, true if changed.
*/
static u2_bean
_unix_dir_update(u2_udir* dir_u, DIR* rid_u)
{
u2_bean cha = u2_no;
// uL(fprintf(uH, "dir_update ON %s\n", dir_u->pax_c));
/* use dry bits as markers
*/
{
u2_udir* dis_u;
u2_ufil* fil_u;
for ( dis_u = dir_u->dis_u; dis_u; dis_u = dis_u->nex_u ) {
dis_u->dry = u2_yes;
}
for ( fil_u = dir_u->fil_u; fil_u; fil_u = fil_u->nex_u ) {
fil_u->dry = u2_yes;
}
}
/* iterate through directory, opening and updating
*/
while ( 1 ) {
struct dirent ent_u;
struct dirent* out_u;
if ( readdir_r(rid_u, &ent_u, &out_u) != 0 ) {
uL(fprintf(uH, "%s: %s\n", dir_u->pax_c, strerror(errno)));
c3_assert(0);
}
else if ( !out_u ) {
break;
}
else if ( ('.' == out_u->d_name[0]) ) { // XX screws up some paths
continue;
}
else {
c3_c* pax_c = _unix_down(dir_u->pax_c, out_u->d_name);
struct stat buf_u;
// uL(fprintf(uH, " in %s\n", pax_c));
if ( 0 != stat(pax_c, &buf_u) ) {
free(pax_c);
continue;
}
else {
if ( !S_ISDIR(buf_u.st_mode) ) {
mpz_t mod_mp;
u2_ufil* fil_u;
{
u2_noun mod = c3_stat_mtime(&buf_u);
u2_cr_mp(mod_mp, mod);
u2z(mod);
}
for ( fil_u = dir_u->fil_u; fil_u; fil_u = fil_u->nex_u ) {
if ( !strcmp(pax_c, fil_u->pax_c) ) {
fil_u->dry = u2_no;
cha = u2_or(cha, _unix_file_update(fil_u, mod_mp));
break;
}
}
if ( !fil_u ) {
fil_u = malloc(sizeof(u2_ufil));
// uL(fprintf(uH, "found file %s\n", pax_c));
_unix_file_watch(fil_u, dir_u, pax_c, mod_mp);
fil_u->nex_u = dir_u->fil_u;
dir_u->fil_u = fil_u;
cha = u2_yes;
}
mpz_clear(mod_mp);
}
else {
DIR* red_u = _unix_opendir(pax_c);
u2_udir* dis_u;
for ( dis_u = dir_u->dis_u; dis_u; dis_u = dis_u->nex_u ) {
if ( !strcmp(pax_c, dis_u->pax_c) ) {
dis_u->dry = u2_no;
cha = u2_or(cha, _unix_dir_update(dis_u, red_u));
break;
}
}
if ( !dis_u ) {
dis_u = malloc(sizeof(u2_udir));
// uL(fprintf(uH, "found directory %s\n", pax_c));
_unix_dir_watch(dis_u, dir_u, pax_c);
_unix_dir_update(dis_u, red_u);
dis_u->nex_u = dir_u->dis_u;
dir_u->dis_u = dis_u;
cha = u2_yes;
}
}
}
}
}
/* use dry bits as markers
*/
{
u2_udir** dis_u;
u2_ufil** fil_u;
for ( dis_u = &(dir_u->dis_u); *dis_u; ) {
if ( u2_no == (*dis_u)->dry ) {
(*dis_u)->dry = u2_yes;
dis_u = &(*dis_u)->nex_u;
}
else {
u2_udir* ded_u = *dis_u;
u2_udir* nex_u = ded_u->nex_u;
// uL(fprintf(uH, "removed directory %s\n", ded_u->pax_c));
_unix_dir_free(ded_u);
free(ded_u);
*dis_u = nex_u;
cha = u2_yes;
}
}
for ( fil_u = &(dir_u->fil_u); *fil_u; ) {
if ( u2_no == (*fil_u)->dry ) {
fil_u = &(*fil_u)->nex_u;
}
else {
u2_ufil* ded_u = *fil_u;
u2_ufil* nex_u = ded_u->nex_u;
// uL(fprintf(uH, "removed file %s\n", ded_u->pax_c));
_unix_file_free(ded_u);
free(ded_u);
*fil_u = nex_u;
cha = u2_yes;
}
}
}
closedir(rid_u);
// uL(fprintf(uH, "dir_update OFF %s\n", dir_u->pax_c));
return cha;
}
/* u2_unix_ef_look(): update the root.
*/
void
u2_unix_ef_look(void)
{
u2_unix* unx_u = &u2_Host.unx_u;
u2_noun won;
u2_uhot* hot_u;
// find owners without directories
{
for ( won = u2A->own; u2_nul != won; won = u2t(won) ) {
u2_noun who = u2h(won);
mpz_t who_mp;
u2_cr_mp(who_mp, who);
for ( hot_u = unx_u->hot_u;
hot_u && (0 != mpz_cmp(who_mp, hot_u->who_mp));
hot_u = hot_u->nex_u );
mpz_clear(who_mp);
if ( 0 == hot_u ) {
_unix_hot_gain(u2k(who), u2_no);
}
}
}
// find directories without owners
{
u2_uhot** het_u = &(unx_u->hot_u);
while ( 0 != (hot_u=*het_u) ) {
for ( won = u2A->own; u2_nul != won; won = u2t(won) ) {
u2_noun who = u2h(won);
mpz_t who_mp;
u2_cr_mp(who_mp, who);
if ( 0 == mpz_cmp(who_mp, hot_u->who_mp) ) {
break;
}
mpz_clear(who_mp);
}
if ( u2_nul == won ) {
*het_u = hot_u->nex_u;
// uL(fprintf(uH, "sync: lose %s\n", hot_u->dir_u.pax_c));
_unix_hot_lose(hot_u);
free(hot_u);
continue;
}
else {
het_u = &(hot_u->nex_u);
}
}
}
// update all ships
{
u2_uhot* hot_u;
for ( hot_u = unx_u->hot_u; hot_u; hot_u = hot_u->nex_u ) {
_unix_ship_update(hot_u);
}
}
}
/* _unix_dir_update(): update directory.
*/
static void
_unix_dir_update(u2_udir* dir_u, DIR* rid_u)
{
if ( u2_yes == dir_u->dry ) {
return;
}
else {
// Update all wet subdirectories.
//
u2_udir** dis_u;
u2_ufil** fil_u;
for ( dis_u = &(dir_u->dis_u); *dis_u; ) {
if ( u2_yes == (*dis_u)->dry ) {
dis_u = &(*dis_u)->nex_u;
}
else {
DIR* red_u = opendir((*dis_u)->pax_c);
if ( 0 == red_u ) {
u2_udir* ded_u = *dis_u;
u2_udir* nex_u = ded_u->nex_u;
// uL(fprintf(uH, "removed directory %s\n", ded_u->pax_c));
_unix_dir_free(ded_u);
*dis_u = nex_u;
}
else {
_unix_dir_update(*dis_u, red_u);
closedir(red_u);
dis_u = &(*dis_u)->nex_u;
}
}
}
// Check all wet files to see if they need deleting.
//
for ( fil_u = &(dir_u->fil_u); *fil_u; ) {
if ( u2_yes == (*fil_u)->dry ) {
fil_u = &(*fil_u)->nex_u;
}
else {
struct stat buf_u;
if ( -1 == stat((*fil_u)->pax_c, &buf_u) ||
!(S_IFREG & buf_u.st_mode) )
{
u2_ufil* ded_u = *fil_u;
u2_ufil* nex_u = ded_u->nex_u;
// uL(fprintf(uH, "removed file %s\n", ded_u->pax_c));
_unix_file_free(ded_u);
*fil_u = nex_u;
}
else {
fil_u = &(*fil_u)->nex_u;
}
}
}
// Scan for new files/directories. XX - this is O(n^2) brute
// force, and could be done by smarter event processing.
//
while ( 1 ) {
struct dirent ent_u;
struct dirent* out_u;
if ( readdir_r(rid_u, &ent_u, &out_u) != 0 ) {
// uL(fprintf(uH, "%s: %s\n", dir_u->pax_c, strerror(errno)));
c3_assert(0);
}
else if ( !out_u ) {
break;
}
else if ( ('.' == out_u->d_name[0]) ) { // XX screws up some paths
continue;
}
else {
c3_c* pax_c = _unix_down(dir_u->pax_c, out_u->d_name);
struct stat buf_u;
// uL(fprintf(uH, " in %s\n", pax_c));
if ( 0 != stat(pax_c, &buf_u) ) {
free(pax_c);
continue;
}
else {
if ( !S_ISDIR(buf_u.st_mode) ) {
mpz_t mod_mp;
u2_ufil* fil_u;
if ( ( NULL == strrchr(out_u->d_name, '.')) ||
( '~' == out_u->d_name[strlen(out_u->d_name) - 1] )
) {
continue;
}
{
u2_noun mod = c3_stat_mtime(&buf_u);
u2_cr_mp(mod_mp, mod);
u2z(mod);
}
for ( fil_u = dir_u->fil_u; fil_u; fil_u = fil_u->nex_u ) {
if ( !strcmp(pax_c, fil_u->pax_c) ) {
break;
}
}
if ( !fil_u ) {
fil_u = c3_malloc(sizeof(u2_ufil));
// uL(fprintf(uH, "found file %s\n", pax_c));
_unix_file_watch(fil_u, dir_u, pax_c, mod_mp);
fil_u->nex_u = dir_u->fil_u;
dir_u->fil_u = fil_u;
}
mpz_clear(mod_mp);
}
else {
u2_udir* dis_u;
for ( dis_u = dir_u->dis_u; dis_u; dis_u = dis_u->nex_u ) {
if ( !strcmp(pax_c, dis_u->pax_c) ) {
break;
}
}
if ( !dis_u ) {
DIR* red_u = _unix_opendir(pax_c);
dis_u = c3_malloc(sizeof(u2_udir));
// uL(fprintf(uH, "found directory %s\n", pax_c));
_unix_dir_watch(dis_u, dir_u, pax_c);
_unix_dir_update(dis_u, red_u);
dis_u->nex_u = dir_u->dis_u;
dir_u->dis_u = dis_u;
closedir(red_u);
} else {
free(pax_c);
}
}
}
}
}
}
}
/* u2_unix_ef_look(): update the root.
*/
void
u2_unix_ef_look(void)
{
u2_unix* unx_u = &u2_Host.unx_u;
u2_noun won;
u2_uhot* hot_u;
if ( u2_nul != u2A->roe ) {
// We can't generate a working %into event here because there
// are other events, possibly containing %into, that are queued;
// they will change the state of %clay and cause a patch that
// doesn't work.
//
return;
}
// find owners without directories
{
for ( won = u2A->own; u2_nul != won; won = u2t(won) ) {
u2_noun who = u2h(won);
mpz_t who_mp;
u2_cr_mp(who_mp, who);
for ( hot_u = unx_u->hot_u;
hot_u && (0 != mpz_cmp(who_mp, hot_u->who_mp));
hot_u = hot_u->nex_u );
mpz_clear(who_mp);
if ( 0 == hot_u ) {
_unix_hot_gain(u2k(who), u2_no);
}
}
}
// find directories without owners
{
u2_uhot** het_u = &(unx_u->hot_u);
while ( 0 != (hot_u=*het_u) ) {
for ( won = u2A->own; u2_nul != won; won = u2t(won) ) {
u2_noun who = u2h(won);
mpz_t who_mp;
c3_w cmp_w;
u2_cr_mp(who_mp, who);
cmp_w = mpz_cmp(who_mp, hot_u->who_mp);
mpz_clear(who_mp);
if ( 0 == cmp_w ) {
break;
}
}
if ( u2_nul == won ) {
*het_u = hot_u->nex_u;
// uL(fprintf(uH, "sync: lose %s\n", hot_u->dir_u.pax_c));
_unix_hot_lose(hot_u);
free(hot_u);
continue;
}
else {
het_u = &(hot_u->nex_u);
}
}
}
// update all ships
{
u2_uhot* hot_u;
for ( hot_u = unx_u->hot_u; hot_u; hot_u = hot_u->nex_u ) {
_unix_ship_update(hot_u);
}
}
}
/* _unix_desk_sync_tofu(): sync out file install.
*/
static void
_unix_desk_sync_tofu(u2_udir* dir_u,
u2_noun pre,
u2_noun ext,
u2_noun mis)
{
c3_c* pox_c = _unix_file_form(dir_u, u2k(pre), u2_no, u2k(ext));
c3_c* pux_c = _unix_file_form(dir_u, u2k(pre), u2_yes, u2k(ext));
u2_ufil** fil_u;
// uL(fprintf(uH, "tofu pox_c %s op %s\n", pox_c, u2_cr_string(u2h(mis))));
#ifdef SYNCLOG
c3_w slot = u2_Host.unx_u.lot_w++ % 1024;
free(u2_Host.unx_u.sylo[slot].pax_c);
u2_Host.unx_u.sylo[slot].pax_c = 0;
#endif
fil_u = &(dir_u->fil_u);
while ( 1 ) { // XX crude!
if ( !*fil_u ||
!strcmp((*fil_u)->pax_c, pox_c) ||
!strcmp((*fil_u)->pax_c, pux_c) )
{
break;
}
else fil_u = &((*fil_u)->nex_u);
}
if ( *fil_u && (c3__del == u2h(mis)) ) {
u2_ufil* ded_u = *fil_u;
#ifdef SYNCLOG
u2_Host.unx_u.sylo[slot].unx = u2_no;
u2_Host.unx_u.sylo[slot].wer_m = c3_s4('t','o','f','u');
u2_Host.unx_u.sylo[slot].wot_m = c3__del;
u2_Host.unx_u.sylo[slot].pax_c = strdup(ded_u->pax_c);
#endif
*fil_u = ded_u->nex_u;
_unix_unlink(ded_u->pax_c);
_unix_file_free(ded_u);
free(pox_c);
free(pux_c);
}
else {
u2_noun god, oat;
c3_c* pax_c;
if ( *fil_u ) {
u2_noun old = _unix_file_load(*fil_u);
c3_assert(c3__mut == u2h(mis));
god = _unix_desk_sync_udon(u2k(u2t(mis)), old);
_unix_unlink((*fil_u)->pax_c);
free((*fil_u)->pax_c);
}
else {
c3_assert(c3__ins == u2h(mis));
god = u2k(u2t(mis));
}
if ( u2_yes == u2du(god) ) {
oat = u2_cke_jam(god);
pax_c = pux_c; free(pox_c);
} else {
oat = god;
pax_c = pox_c; free(pux_c);
}
#ifdef SYNCLOG
u2_Host.unx_u.sylo[slot].unx = u2_no;
u2_Host.unx_u.sylo[slot].wer_m = c3_s4('t','o','f','u');
u2_Host.unx_u.sylo[slot].wot_m = u2h(mis);
u2_Host.unx_u.sylo[slot].pax_c = strdup(pax_c);
#endif
_unix_save(pax_c, oat);
if ( *fil_u ) {
(*fil_u)->dot_c = (pax_c + ((*fil_u)->dot_c - (*fil_u)->pax_c));
(*fil_u)->pax_c = pax_c;
mpz_clear((*fil_u)->mod_mp);
u2_cr_mp((*fil_u)->mod_mp, u2A->now);
}
else {
mpz_t mod_mp;
u2_cr_mp(mod_mp, u2A->now);
*fil_u = c3_malloc(sizeof(u2_ufil));
_unix_file_watch(*fil_u, dir_u, pax_c, mod_mp);
mpz_clear(mod_mp);
}
}
u2z(pre); u2z(ext); u2z(mis);
}
