mirror of
https://github.com/urbit/shrub.git
synced 2024-12-14 11:08:45 +03:00
1334 lines
28 KiB
C
1334 lines
28 KiB
C
/* v/unix.c
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**
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** This file is in the public domain.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <setjmp.h>
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#include <gmp.h>
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#include <dirent.h>
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#include <stdint.h>
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#include <uv.h>
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#include <curses.h>
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#include <termios.h>
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#include <term.h>
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#include <errno.h>
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#include "all.h"
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#include "f/coal.h"
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#include "v/vere.h"
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/* _unix_down(): descend path.
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*/
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static c3_c*
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_unix_down(c3_c* pax_c, c3_c* sub_c)
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{
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c3_w pax_w = strlen(pax_c);
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c3_c* don_c = malloc(pax_w + strlen(sub_c) + 2);
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strcpy(don_c, pax_c);
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don_c[pax_w] = '/';
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strcpy(don_c + pax_w + 1, sub_c);
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return don_c;
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}
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/* _unix_opendir(): opendir, asserting.
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*/
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static DIR*
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_unix_opendir(c3_c* pax_c)
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{
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DIR* rid_u = opendir(pax_c);
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if ( !rid_u ) {
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uL(fprintf(uH, "%s: %s\n", pax_c, strerror(errno)));
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c3_assert(0);
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}
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return rid_u;
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}
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/* _unix_mkdir(): mkdir, asserting.
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*/
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static void
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_unix_mkdir(c3_c* pax_c)
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{
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if ( 0 != mkdir(pax_c, 0755) ) {
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uL(fprintf(uH, "%s: %s\n", pax_c, strerror(errno)));
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c3_assert(0);
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}
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}
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/* _unix_unlink(): unlink, asserting.
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*/
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static void
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_unix_unlink(c3_c* pax_c)
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{
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if ( 0 != unlink(pax_c) ) {
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uL(fprintf(uH, "%s: %s\n", pax_c, strerror(errno)));
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c3_assert(0);
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}
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}
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/* u2_unix_acquire(): acquire a lockfile, killing anything that holds it.
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*/
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void
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u2_unix_acquire(c3_c* pax_c)
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{
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c3_c* paf_c = _unix_down(pax_c, ".vere.lock");
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c3_w pid_w;
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FILE* loq_u;
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if ( NULL != (loq_u = fopen(paf_c, "r")) ) {
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if ( 1 != fscanf(loq_u, "%u", &pid_w) ) {
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uL(fprintf(uH, "lockfile %s is corrupt!\n", paf_c));
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kill(getpid(), SIGTERM);
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sleep(1); c3_assert(0);
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}
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else {
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c3_w i_w;
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if ( -1 != kill(pid_w, SIGTERM) ) {
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uL(fprintf(uH, "unix: stopping process %d, live in %s...\n",
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pid_w, pax_c));
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for ( i_w = 0; i_w < 16; i_w++ ) {
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sleep(1);
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if ( -1 == kill(pid_w, SIGTERM) ) {
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break;
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}
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}
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if ( 16 == i_w ) {
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for ( i_w = 0; i_w < 16; i_w++ ) {
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if ( -1 == kill(pid_w, SIGKILL) ) {
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break;
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}
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sleep(1);
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}
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}
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if ( 16 == i_w ) {
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uL(fprintf(uH, "process %d seems unkillable!\n", pid_w));
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c3_assert(0);
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}
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uL(fprintf(uH, "unix: stopped old process %u\n", pid_w));
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}
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}
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fclose(loq_u);
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unlink(paf_c);
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}
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loq_u = fopen(paf_c, "w");
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fprintf(loq_u, "%u\n", getpid());
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{
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c3_i fid_i = fileno(loq_u);
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#if defined(U2_OS_linux)
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fdatasync(fid_i);
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#elif defined(U2_OS_osx)
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fcntl(fid_i, F_FULLFSYNC);
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#elif defined(U2_OS_bsd)
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fsync(fid_i);
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#else
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#error "port: datasync"
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#endif
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}
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fclose(loq_u);
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}
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/* u2_unix_release(): release a lockfile.
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*/
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void
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u2_unix_release(c3_c* pax_c)
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{
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c3_c* paf_c = _unix_down(pax_c, ".vere.lock");
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unlink(paf_c);
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free(paf_c);
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}
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/* _unix_dir_dry(): recursively dry a directory.
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*/
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static void
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_unix_dir_dry(u2_udir* dir_u)
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{
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u2_udir* dis_u;
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u2_ufil* fil_u;
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dir_u->dry = u2_yes;
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for ( dis_u = dir_u->dis_u; dis_u; dis_u = dis_u->nex_u ) {
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_unix_dir_dry(dis_u);
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}
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for ( fil_u = dir_u->fil_u; fil_u; fil_u = fil_u->nex_u ) {
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fil_u->dry = u2_yes;
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}
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}
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/* _unix_fs_event_cb(): filesystem event callback.
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*/
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static void
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_unix_fs_event_cb(uv_fs_event_t* was_u,
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const c3_c* pax_c,
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c3_i sas_i,
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c3_i evt_i)
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{
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u2_unod* nod_u = (void*)was_u;
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// uL(fprintf(uH, "fs: %s in %s\n", pax_c, nod_u->pax_c));
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{
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while ( nod_u ) {
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nod_u->dry = u2_no;
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nod_u = (u2_unod*) nod_u->par_u;
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}
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}
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}
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/* _unix_file_watch(): create file tracker (from filesystem)
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*/
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static void
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_unix_file_watch(u2_ufil* fil_u,
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u2_udir* dir_u,
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c3_c* pax_c,
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mpz_t mod_mp)
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{
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uv_fs_event_init(u2L, &fil_u->was_u, pax_c, _unix_fs_event_cb, 0);
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// uL(fprintf(uH, "file: got: %s (handle %d)\n", pax_c, fil_u->was_u.type));
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fil_u->non = u2_no;
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fil_u->dry = u2_no;
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fil_u->pax_c = pax_c;
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{
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c3_c* dot_c = strrchr(pax_c, '.');
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c3_c* fas_c = strrchr(pax_c, '/');
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fil_u->dot_c = dot_c ? (fas_c ? ((dot_c > fas_c) ? dot_c : 0)
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: dot_c)
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: 0;
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}
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fil_u->par_u = dir_u;
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mpz_init_set(fil_u->mod_mp, mod_mp);
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fil_u->nex_u = 0;
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c3_assert(!fil_u->dot_c || (fil_u->dot_c > fil_u->pax_c));
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}
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/* _unix_file_form(): form a filename path downward.
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*/
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static c3_c*
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_unix_file_form(u2_udir* dir_u,
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u2_noun pre,
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u2_bean ket,
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u2_noun ext)
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{
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c3_c* pre_c = u2_cr_string(pre);
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c3_c* ext_c = u2_cr_string(ext);
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c3_w pax_w = strlen(dir_u->pax_c);
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c3_w pre_w = strlen(pre_c);
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c3_w ext_w = strlen(ext_c);
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c3_w ket_w = (u2_yes == ket) ? 1 : 0;
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c3_c* pax_c = malloc(pax_w + 1 + pre_w + 1 + ket_w + ext_w + 1);
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strcpy(pax_c, dir_u->pax_c);
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pax_c[pax_w] = '/';
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strcpy(pax_c + pax_w + 1, pre_c);
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pax_c[pax_w + 1 + pre_w] = '.';
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if ( u2_yes == ket ) {
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pax_c[pax_w + 1 + pre_w + 1] = '^';
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}
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strcpy(pax_c + pax_w + 1 + pre_w + 1 + ket_w, ext_c);
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free(pre_c); free(ext_c);
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u2z(pre); u2z(ext);
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return pax_c;
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}
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/* _unix_dir_watch(): instantiate directory tracker.
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*/
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static void
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_unix_dir_watch(u2_udir* dir_u, u2_udir* par_u, c3_c* pax_c)
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{
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uv_fs_event_init(u2L, &dir_u->was_u, pax_c, _unix_fs_event_cb, 0);
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dir_u->yes = u2_yes;
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dir_u->dry = u2_no;
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dir_u->pax_c = pax_c;
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dir_u->par_u = par_u;
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dir_u->dis_u = 0;
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dir_u->fil_u = 0;
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dir_u->nex_u = 0;
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}
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/* _unix_dir_forge: instantiate directory tracker (and make directory).
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*/
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static void
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_unix_dir_forge(u2_udir* dir_u, u2_udir* par_u, u2_noun tet)
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{
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dir_u->yes = u2_yes;
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dir_u->dry = u2_no;
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{
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c3_c* tet_c = u2_cr_string(tet);
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c3_w pax_w = strlen(par_u->pax_c);
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c3_w tet_w = strlen(tet_c);
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c3_c* pax_c = malloc(pax_w + 1 + tet_w + 1);
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strcpy(pax_c, par_u->pax_c);
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pax_c[pax_w] = '/';
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strcpy(pax_c + pax_w + 1, tet_c);
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free(tet_c);
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u2z(tet);
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uv_fs_event_init(u2L, &dir_u->was_u, pax_c, _unix_fs_event_cb, 0);
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_unix_mkdir(pax_c);
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dir_u->pax_c = pax_c;
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}
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dir_u->par_u = par_u;
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dir_u->dis_u = 0;
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dir_u->fil_u = 0;
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dir_u->nex_u = 0;
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}
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/* _unix_file_done(): finish freeing file.
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*/
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static void
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_unix_file_done(uv_handle_t* was_u)
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{
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u2_ufil* fil_u = (void*) was_u;
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// uL(fprintf(uH, "file: dun: %s\n", fil_u->pax_c));
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free(fil_u->pax_c);
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mpz_clear(fil_u->mod_mp);
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free(fil_u);
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}
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/* _unix_file_free(): free (within) file tracker.
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*/
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static void
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_unix_file_free(u2_ufil* fil_u)
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{
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// uL(fprintf(uH, "file: free: %s\n", fil_u->pax_c));
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uv_close((uv_handle_t*)&fil_u->was_u, _unix_file_done);
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}
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#if 0
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/* _unix_file_sane(): sanity check file.
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*/
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static void
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_unix_file_sane(u2_ufil* fil_u)
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{
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}
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/* _unix_dir_sane(): sanity check directory.
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*/
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static void
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_unix_dir_sane(u2_udir* dir_u)
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{
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u2_udir* dis_u;
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u2_ufil* fil_u;
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for ( dis_u = dir_u->dis_u; dis_u; dis_u = dis_u->nex_u ) {
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_unix_dir_sane(dis_u);
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}
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for ( fil_u = dir_u->fil_u; fil_u; fil_u = fil_u->nex_u ) {
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_unix_file_sane(fil_u);
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}
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}
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#endif
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/* _unix_dir_done(): finish freeing file.
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*/
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static void
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_unix_dir_done(uv_handle_t* was_u)
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{
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u2_udir* dir_u = (void*) was_u;
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free(dir_u->pax_c);
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free(dir_u);
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}
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/* _unix_dir_free(): free (within) directory tracker.
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*/
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static void
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_unix_dir_free(u2_udir* dir_u)
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{
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free(dir_u->pax_c);
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uv_close((uv_handle_t*)&dir_u->was_u, _unix_dir_done);
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while ( dir_u->dis_u ) {
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u2_udir* nex_u = dir_u->dis_u->nex_u;
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_unix_dir_free(dir_u->dis_u);
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dir_u->dis_u = nex_u;
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}
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while ( dir_u->fil_u ) {
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u2_ufil* nex_u = dir_u->fil_u->nex_u;
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_unix_file_free(dir_u->fil_u);
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dir_u->fil_u = nex_u;
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}
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}
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#if 0
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/* _unix_file_update(): update file, true if plausibly changed.
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*/
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static u2_bean
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_unix_file_update(u2_ufil* fil_u, mpz_t mod_mp)
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{
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if ( 0 == mpz_cmp(mod_mp, fil_u->mod_mp) ) {
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return u2_no;
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} else {
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mpz_clear(fil_u->mod_mp);
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mpz_init_set(fil_u->mod_mp, mod_mp);
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return u2_yes;
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}
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}
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#endif
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/* _unix_dir_update(): update directory.
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*/
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static void
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_unix_dir_update(u2_udir* dir_u, DIR* rid_u)
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{
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if ( u2_yes == dir_u->dry ) {
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return;
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}
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else {
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// Update all wet subdirectories.
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//
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u2_udir** dis_u;
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u2_ufil** fil_u;
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for ( dis_u = &(dir_u->dis_u); *dis_u; ) {
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if ( u2_yes == (*dis_u)->dry ) {
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dis_u = &(*dis_u)->nex_u;
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}
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else {
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DIR* red_u = opendir((*dis_u)->pax_c);
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if ( 0 == red_u ) {
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u2_udir* ded_u = *dis_u;
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u2_udir* nex_u = ded_u->nex_u;
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// uL(fprintf(uH, "removed directory %s\n", ded_u->pax_c));
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_unix_dir_free(ded_u);
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*dis_u = nex_u;
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}
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else {
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_unix_dir_update(*dis_u, red_u);
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closedir(red_u);
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dis_u = &(*dis_u)->nex_u;
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}
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}
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}
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// Check all wet files to see if they need deleting.
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//
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for ( fil_u = &(dir_u->fil_u); *fil_u; ) {
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if ( u2_yes == (*fil_u)->dry ) {
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fil_u = &(*fil_u)->nex_u;
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}
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else {
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struct stat buf_u;
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if ( -1 == stat((*fil_u)->pax_c, &buf_u) ||
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!(S_IFREG & buf_u.st_mode) )
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{
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u2_ufil* ded_u = *fil_u;
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u2_ufil* nex_u = ded_u->nex_u;
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// uL(fprintf(uH, "removed file %s\n", ded_u->pax_c));
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_unix_file_free(ded_u);
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*fil_u = nex_u;
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}
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else {
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fil_u = &(*fil_u)->nex_u;
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}
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}
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}
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// Scan for new files/directories. XX - this is O(n^2) brute
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// force, and could be done by smarter event processing.
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//
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while ( 1 ) {
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struct dirent ent_u;
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struct dirent* out_u;
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if ( readdir_r(rid_u, &ent_u, &out_u) != 0 ) {
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// uL(fprintf(uH, "%s: %s\n", dir_u->pax_c, strerror(errno)));
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c3_assert(0);
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}
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else if ( !out_u ) {
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break;
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}
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else if ( ('.' == out_u->d_name[0]) ) { // XX screws up some paths
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continue;
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}
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else {
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c3_c* pax_c = _unix_down(dir_u->pax_c, out_u->d_name);
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struct stat buf_u;
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// uL(fprintf(uH, " in %s\n", pax_c));
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if ( 0 != stat(pax_c, &buf_u) ) {
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free(pax_c);
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continue;
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}
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else {
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if ( !S_ISDIR(buf_u.st_mode) ) {
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mpz_t mod_mp;
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u2_ufil* fil_u;
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{
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u2_noun mod = c3_stat_mtime(&buf_u);
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|
|
|
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 = 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 = 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);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* unix_load(): load a file.
|
|
*/
|
|
static u2_noun
|
|
_unix_load(c3_c* pax_c)
|
|
{
|
|
struct stat buf_u;
|
|
c3_i fid_i = open(pax_c, O_RDONLY, 0644);
|
|
c3_w fln_w, red_w;
|
|
c3_y* pad_y;
|
|
|
|
if ( (fid_i < 0) || (fstat(fid_i, &buf_u) < 0) ) {
|
|
uL(fprintf(uH, "%s: %s\n", pax_c, strerror(errno)));
|
|
c3_assert(0);
|
|
return 0;
|
|
}
|
|
fln_w = buf_u.st_size;
|
|
pad_y = malloc(buf_u.st_size);
|
|
|
|
red_w = read(fid_i, pad_y, fln_w);
|
|
close(fid_i);
|
|
|
|
if ( fln_w != red_w ) {
|
|
free(pad_y);
|
|
c3_assert(0);
|
|
return 0;
|
|
}
|
|
else {
|
|
u2_noun pad = u2_ci_bytes(fln_w, (c3_y *)pad_y);
|
|
free(pad_y);
|
|
|
|
return pad;
|
|
}
|
|
}
|
|
|
|
/* unix_save(): save a file.
|
|
*/
|
|
static void
|
|
_unix_save(c3_c* pax_c, u2_atom oat)
|
|
{
|
|
c3_i fid_i = open(pax_c, O_WRONLY | O_CREAT | O_TRUNC, 0666);
|
|
c3_w fln_w, rit_w;
|
|
c3_y* oat_y;
|
|
|
|
if ( fid_i < 0 ) {
|
|
uL(fprintf(uH, "%s: %s\n", pax_c, strerror(errno)));
|
|
u2_cm_bail(c3__fail);
|
|
}
|
|
|
|
fln_w = u2_met(3, oat);
|
|
oat_y = malloc(fln_w);
|
|
u2_cr_bytes(0, fln_w, oat_y, oat);
|
|
u2z(oat);
|
|
|
|
rit_w = write(fid_i, oat_y, fln_w);
|
|
close(fid_i);
|
|
free(oat_y);
|
|
|
|
if ( rit_w != fln_w ) {
|
|
uL(fprintf(uH, "%s: %s\n", pax_c, strerror(errno)));
|
|
c3_assert(0);
|
|
}
|
|
}
|
|
|
|
/* _unix_file_load(): load a file by watcher.
|
|
*/
|
|
static u2_noun
|
|
_unix_file_load(u2_ufil* fil_u)
|
|
{
|
|
u2_noun raw = _unix_load(fil_u->pax_c);
|
|
|
|
if ( (0 == raw) || ('^' != fil_u->dot_c[1]) ) {
|
|
return raw;
|
|
}
|
|
else return u2_cke_cue(raw);
|
|
}
|
|
|
|
|
|
/* _unix_dir_name(): directory name.
|
|
*/
|
|
static u2_noun
|
|
_unix_dir_name(u2_udir* dir_u)
|
|
{
|
|
c3_w pel_w = strlen(dir_u->par_u->pax_c);
|
|
c3_c* pax_c = dir_u->pax_c + pel_w + 1;
|
|
c3_c* fas_c = strchr(pax_c, '/');
|
|
|
|
return fas_c ? u2_ci_bytes((fas_c - pax_c), (c3_y*) pax_c)
|
|
: u2_ci_string(pax_c);
|
|
}
|
|
|
|
|
|
/* _unix_file_name(): file name/extension.
|
|
*/
|
|
static u2_noun
|
|
_unix_file_name(u2_ufil* fil_u)
|
|
{
|
|
c3_w pel_w = strlen(fil_u->par_u->pax_c);
|
|
c3_c* pax_c = fil_u->pax_c + pel_w + 1;
|
|
|
|
if ( !fil_u->dot_c ) {
|
|
return u2_ci_string(pax_c);
|
|
}
|
|
else {
|
|
c3_c* ext_c = fil_u->dot_c + 1;
|
|
|
|
ext_c = (*ext_c == '^') ? (ext_c + 1) : ext_c;
|
|
return u2nc(u2_ci_bytes((fil_u->dot_c - pax_c), (c3_y*)pax_c),
|
|
u2_ci_string(ext_c));
|
|
}
|
|
}
|
|
|
|
/* _unix_dir_ankh(): resolve directory to new style ankh.
|
|
*/
|
|
static u2_noun
|
|
_unix_dir_ankh(u2_udir* dir_u)
|
|
{
|
|
u2_udir* dis_u;
|
|
u2_ufil* fil_u;
|
|
u2_noun pam = u2_nul;
|
|
|
|
for ( dis_u = dir_u->dis_u; dis_u; dis_u = dis_u->nex_u ) {
|
|
u2_noun pre = _unix_dir_name(dis_u);
|
|
u2_noun ank = _unix_dir_ankh(dis_u);
|
|
|
|
// uL(fprintf(uH, "dir %s\n", u2_cr_string(pre)));
|
|
pam = u2_ckd_by_put(pam, pre, ank);
|
|
}
|
|
|
|
for ( fil_u = dir_u->fil_u; fil_u; fil_u = fil_u->nex_u ) {
|
|
u2_noun wib = _unix_file_name(fil_u);
|
|
u2_noun baw = _unix_file_load(fil_u);
|
|
u2_noun woz = u2nt(u2_nul, u2_do("sham", u2k(baw)), baw);
|
|
u2_weak ole;
|
|
|
|
if ( u2_no == u2du(wib) ) {
|
|
ole = u2_ckd_by_get(u2k(pam), u2k(wib));
|
|
|
|
if ( u2_none == ole ) {
|
|
ole = u2_do("cosh", u2nt(0, woz, u2_nul));
|
|
} else {
|
|
u2_noun elo;
|
|
|
|
elo = u2_do("cosh", u2nt(0, woz, u2k(u2t(u2t(ole)))));
|
|
u2z(ole);
|
|
|
|
ole = elo;
|
|
}
|
|
pam = u2_ckd_by_put(pam, wib, ole);
|
|
}
|
|
else {
|
|
u2_noun fid = u2h(wib);
|
|
u2_noun har = u2t(wib);
|
|
|
|
ole = u2_ckd_by_get(u2k(pam), u2k(fid));
|
|
|
|
if ( u2_none == ole ) {
|
|
ole = u2nt
|
|
(0, u2_nul, u2_ckd_by_put(u2_nul,
|
|
u2k(har),
|
|
u2_do("cosh", u2nt(0, woz, u2_nul))));
|
|
ole = u2_do("cosh", ole);
|
|
}
|
|
else {
|
|
u2_noun roo = u2t(u2t(ole));
|
|
u2_weak tup = u2_ckd_by_get(u2k(roo), u2k(har));
|
|
u2_noun oor, elo;
|
|
|
|
if ( u2_none == tup ) {
|
|
tup = u2_do("cosh", u2nt(0, woz, u2_nul));
|
|
} else {
|
|
u2_noun upt;
|
|
|
|
upt = u2_do("cosh", u2nt(0, woz, u2k(u2t(u2t(tup)))));
|
|
u2z(tup);
|
|
|
|
tup = upt;
|
|
}
|
|
oor = u2_ckd_by_put(u2k(roo), u2k(har), tup);
|
|
elo = u2_do("cosh", u2nt(0, u2k(u2h(u2t(ole))), oor));
|
|
|
|
u2z(ole); ole = elo;
|
|
}
|
|
pam = u2_ckd_by_put(pam, u2k(fid), ole);
|
|
u2z(wib);
|
|
}
|
|
}
|
|
return u2_do("cosh", u2nt(0, u2_nul, pam));
|
|
}
|
|
|
|
/* _unix_desk_peek(): peek for ankh.
|
|
*/
|
|
static u2_noun
|
|
_unix_desk_peek(u2_noun who,
|
|
u2_noun hox,
|
|
u2_noun syd,
|
|
u2_noun lok)
|
|
{
|
|
u2_noun cay;
|
|
|
|
cay = u2_reck_prick
|
|
(u2A, who, u2nc(c3_s2('c','z'), u2nq(hox, syd, lok, u2_nul)));
|
|
|
|
if ( u2_nul == cay ) {
|
|
return u2nt(0, u2_nul, u2_nul);
|
|
} else {
|
|
u2_noun ank = u2k(u2t(cay));
|
|
|
|
u2z(cay); return ank;
|
|
}
|
|
}
|
|
|
|
/* _unix_desk_sync_into(): sync external changes to desk.
|
|
*/
|
|
static void
|
|
_unix_desk_sync_into(u2_noun who,
|
|
u2_noun hox,
|
|
u2_noun syd,
|
|
u2_udir* dir_u)
|
|
{
|
|
u2_noun xun, bur, doz, fav, pax;
|
|
|
|
xun = _unix_dir_ankh(dir_u);
|
|
bur = _unix_desk_peek(u2k(who), hox, syd, u2k(u2A->wen));
|
|
|
|
if ( u2_no == u2_sing(xun, bur) ) {
|
|
doz = u2_dc("cost", xun, bur);
|
|
|
|
pax = u2nq(c3__gold, c3__sync, u2k(u2A->sen), u2_nul);
|
|
fav = u2nq(c3__into, who, syd, u2nt(u2_yes, u2_nul, doz));
|
|
|
|
u2_reck_plan(u2A, pax, fav);
|
|
}
|
|
else {
|
|
u2z(xun); u2z(bur);
|
|
}
|
|
}
|
|
|
|
/* _unix_ship_update(): update top level ship.
|
|
*/
|
|
static void
|
|
_unix_ship_update(u2_uhot* hot_u)
|
|
{
|
|
u2_udir* dir_u = &(hot_u->dir_u);
|
|
|
|
if ( u2_no == dir_u->dry ) {
|
|
DIR* rid_u = _unix_opendir(dir_u->pax_c);
|
|
u2_udir* dis_u;
|
|
u2_noun who, hox;
|
|
|
|
_unix_dir_update(dir_u, rid_u);
|
|
|
|
{
|
|
mpz_t who_mp;
|
|
|
|
mpz_init_set(who_mp, hot_u->who_mp);
|
|
who = u2_ci_mp(who_mp);
|
|
hox = u2_dc("scot", 'p', u2k(who));
|
|
}
|
|
|
|
for ( dis_u = dir_u->dis_u; dis_u; dis_u = dis_u->nex_u ) {
|
|
u2_noun syd = _unix_dir_name(dis_u);
|
|
|
|
// uL(fprintf(uH, "sync %s %s\n", u2_cr_string(hox), u2_cr_string(syd)));
|
|
_unix_desk_sync_into(u2k(who), u2k(hox), syd, dis_u);
|
|
}
|
|
u2z(hox);
|
|
u2z(who);
|
|
|
|
closedir(rid_u);
|
|
_unix_dir_dry(dir_u);
|
|
}
|
|
}
|
|
|
|
/* _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_hot_lose(): release within a host directory.
|
|
*/
|
|
static void
|
|
_unix_hot_lose(u2_uhot* hot_u)
|
|
{
|
|
// uL(fprintf(uH, "lose: %s\n", hot_u->dir_u.pax_c));
|
|
_unix_dir_free(&(hot_u->dir_u));
|
|
}
|
|
|
|
/* _unix_pdir(): find directory reference from text.
|
|
*/
|
|
static u2_udir**
|
|
_unix_pdir(u2_udir* par_u, u2_noun tet)
|
|
{
|
|
c3_c* tet_c = u2_cr_string(tet);
|
|
c3_w pax_w = strlen(par_u->pax_c);
|
|
c3_w tet_w = strlen(tet_c);
|
|
u2_udir** dir_u;
|
|
|
|
dir_u = &(par_u->dis_u);
|
|
while ( 1 ) {
|
|
if ( !*dir_u || !strncmp(((*dir_u)->pax_c + pax_w + 1), tet_c, tet_w) ) {
|
|
free(tet_c); return dir_u;
|
|
}
|
|
else dir_u = &((*dir_u)->nex_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_udon(): apply udon to existing value.
|
|
*/
|
|
static u2_noun
|
|
_unix_desk_sync_udon(u2_noun don, u2_noun old)
|
|
{
|
|
return u2_dc("lump", don, old);
|
|
}
|
|
|
|
/* _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(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);
|
|
}
|
|
|
|
_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 = 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);
|
|
}
|
|
|
|
/* _unix_desk_sync_tako(): sync out change.
|
|
*/
|
|
static void
|
|
_unix_desk_sync_tako(u2_udir* dir_u, u2_noun pax, u2_noun mis)
|
|
{
|
|
if ( (u2_no == u2du(pax)) || u2_no == u2du(u2t(pax)) ) {
|
|
c3_assert(0);
|
|
|
|
u2z(pax); u2z(mis);
|
|
}
|
|
else {
|
|
u2_noun i_pax = u2h(pax);
|
|
u2_noun t_pax = u2t(pax);
|
|
u2_noun it_pax = u2h(t_pax);
|
|
u2_noun tt_pax = u2t(t_pax);
|
|
|
|
if ( u2_nul == tt_pax ) {
|
|
_unix_desk_sync_tofu(dir_u, u2k(i_pax), u2k(it_pax), mis);
|
|
}
|
|
else {
|
|
u2_udir** dis_u = _unix_pdir(dir_u, u2k(i_pax));
|
|
|
|
if ( !*dis_u ) {
|
|
*dis_u = malloc(sizeof(u2_udir));
|
|
|
|
_unix_dir_forge(*dis_u, dir_u, u2k(i_pax));
|
|
}
|
|
_unix_desk_sync_tako(*dis_u, u2k(t_pax), mis);
|
|
}
|
|
}
|
|
u2z(pax);
|
|
}
|
|
|
|
/* _unix_desk_sync_soba(): sync computed changes.
|
|
*/
|
|
static void
|
|
_unix_desk_sync_soba(u2_udir* dir_u, u2_noun doz)
|
|
{
|
|
u2_noun zod = u2t(doz);
|
|
|
|
while ( u2_nul != zod ) {
|
|
_unix_desk_sync_tako(dir_u, u2k(u2h(u2h(zod))), u2k(u2t(u2h(zod))));
|
|
zod = u2t(zod);
|
|
}
|
|
u2z(doz);
|
|
}
|
|
|
|
/* _unix_desk_sync_ergo(): sync desk changes to unix.
|
|
*/
|
|
static void
|
|
_unix_desk_sync_ergo(u2_noun who,
|
|
u2_noun hox,
|
|
u2_noun syd,
|
|
u2_noun lok,
|
|
u2_uhot* hot_u)
|
|
{
|
|
u2_udir** dir_u = _unix_pdir(&(hot_u->dir_u), syd);
|
|
u2_noun xun;
|
|
|
|
#if 0
|
|
uL(fprintf(uH, "ergo %s %s %s\n", u2_cr_string(hox),
|
|
u2_cr_string(syd),
|
|
u2_cr_string(lok)));
|
|
#endif
|
|
|
|
if ( !*dir_u ) {
|
|
*dir_u = malloc(sizeof(u2_udir));
|
|
|
|
xun = u2nt(0, u2_nul, u2_nul);
|
|
_unix_dir_forge(*dir_u, &(hot_u->dir_u), u2k(syd));
|
|
} else {
|
|
xun = _unix_dir_ankh(*dir_u);
|
|
}
|
|
|
|
{
|
|
u2_noun bur = _unix_desk_peek(who, hox, syd, lok);
|
|
|
|
if ( u2_no == u2_sing(xun, bur) ) {
|
|
u2_noun doz = u2_dc("cost", bur, xun);
|
|
|
|
_unix_desk_sync_soba(*dir_u, doz);
|
|
}
|
|
else {
|
|
u2z(xun); u2z(bur);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* u2_unix_ef_init(): update filesystem for new acquisition.
|
|
*/
|
|
void
|
|
u2_unix_ef_init(u2_noun who)
|
|
{
|
|
_unix_hot_gain(u2k(who), u2_yes);
|
|
|
|
u2_reck_plan(u2A, u2nq(c3__gold, c3__sync, u2k(u2A->sen), u2_nul),
|
|
u2nq(c3__into, who,
|
|
u2_blip,
|
|
u2nq(u2_yes, u2_nul,
|
|
u2nc(0, 0), u2_nul)));
|
|
}
|
|
|
|
/* u2_unix_ef_ergo(): update filesystem, outbound.
|
|
*/
|
|
void
|
|
u2_unix_ef_ergo(u2_noun who,
|
|
u2_noun syd,
|
|
u2_noun rel)
|
|
{
|
|
u2_noun hox = u2_dc("scot", 'p', u2k(who));
|
|
u2_noun lok = u2_dc("scot", c3__ud, rel);
|
|
u2_uhot* hot_u;
|
|
|
|
hot_u = _unix_home(u2k(who));
|
|
|
|
if ( 0 != hot_u ) {
|
|
_unix_desk_sync_ergo(who, hox, syd, lok, hot_u);
|
|
}
|
|
}
|
|
|
|
/* 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_time_cb(): timer callback.
|
|
*/
|
|
static void
|
|
_unix_time_cb(uv_timer_t* tim_u, c3_i sas_i)
|
|
{
|
|
u2_lo_open();
|
|
{
|
|
u2_reck_plan
|
|
(u2A,
|
|
u2nt(c3__gold, c3__clay, u2_nul),
|
|
u2nc(c3__wake, u2_nul));
|
|
}
|
|
u2_lo_shut(u2_no);
|
|
}
|
|
|
|
/* _unix_sign_cb: signal callback.
|
|
*/
|
|
static void
|
|
_unix_sign_cb(uv_signal_t* sil_u, c3_i num_i)
|
|
{
|
|
u2_lo_open();
|
|
{
|
|
switch ( num_i ) {
|
|
default: fprintf(stderr, "\r\nmysterious signal %d\r\n", num_i); break;
|
|
|
|
case SIGTERM:
|
|
fprintf(stderr, "\r\ncaught signal %d\r\n", num_i);
|
|
u2_Host.liv = u2_no;
|
|
break;
|
|
case SIGINT: u2_term_ef_ctlc(); break;
|
|
case SIGWINCH: u2_term_ef_winc(); break;
|
|
// case SIGCHLD: u2_save_ef_chld(); break;
|
|
}
|
|
}
|
|
u2_lo_shut(u2_yes);
|
|
}
|
|
|
|
/* u2_unix_ef_hold()
|
|
*/
|
|
void
|
|
u2_unix_ef_hold(void)
|
|
{
|
|
u2_unix* unx_u = &u2_Host.unx_u;
|
|
u2_usig* sig_u;
|
|
|
|
for ( sig_u = unx_u->sig_u; sig_u; sig_u = sig_u->nex_u ) {
|
|
uv_signal_stop(&sig_u->sil_u);
|
|
}
|
|
}
|
|
|
|
/* u2_unix_ef_move()
|
|
*/
|
|
void
|
|
u2_unix_ef_move(void)
|
|
{
|
|
u2_unix* unx_u = &u2_Host.unx_u;
|
|
u2_usig* sig_u;
|
|
|
|
for ( sig_u = unx_u->sig_u; sig_u; sig_u = sig_u->nex_u ) {
|
|
uv_signal_start(&sig_u->sil_u, _unix_sign_cb, sig_u->num_i);
|
|
}
|
|
}
|
|
|
|
/* u2_unix_io_init(): initialize unix sync.
|
|
*/
|
|
void
|
|
u2_unix_io_init(void)
|
|
{
|
|
u2_unix* unx_u = &u2_Host.unx_u;
|
|
|
|
u2_unix_acquire(u2_Host.cpu_c);
|
|
uv_timer_init(u2L, &unx_u->tim_u);
|
|
unx_u->alm = u2_no;
|
|
|
|
{
|
|
u2_usig* sig_u;
|
|
|
|
sig_u = malloc(sizeof(u2_usig));
|
|
uv_signal_init(u2L, &sig_u->sil_u);
|
|
|
|
sig_u->num_i = SIGTERM;
|
|
sig_u->nex_u = unx_u->sig_u;
|
|
unx_u->sig_u = sig_u;
|
|
}
|
|
{
|
|
u2_usig* sig_u;
|
|
|
|
sig_u = malloc(sizeof(u2_usig));
|
|
uv_signal_init(u2L, &sig_u->sil_u);
|
|
|
|
sig_u->num_i = SIGINT;
|
|
sig_u->nex_u = unx_u->sig_u;
|
|
unx_u->sig_u = sig_u;
|
|
}
|
|
{
|
|
u2_usig* sig_u;
|
|
|
|
sig_u = malloc(sizeof(u2_usig));
|
|
uv_signal_init(u2L, &sig_u->sil_u);
|
|
|
|
sig_u->num_i = SIGWINCH;
|
|
sig_u->nex_u = unx_u->sig_u;
|
|
unx_u->sig_u = sig_u;
|
|
}
|
|
#if 0
|
|
{
|
|
u2_usig* sig_u;
|
|
|
|
sig_u = malloc(sizeof(u2_usig));
|
|
uv_signal_init(u2L, &sig_u->sil_u);
|
|
|
|
sig_u->num_i = SIGCHLD;
|
|
sig_u->nex_u = unx_u->sig_u;
|
|
unx_u->sig_u = sig_u;
|
|
}
|
|
#endif
|
|
u2_unix_ef_move();
|
|
}
|
|
|
|
/* u2_unix_io_exit(): terminate unix I/O.
|
|
*/
|
|
void
|
|
u2_unix_io_exit(void)
|
|
{
|
|
u2_unix_release(u2_Host.cpu_c);
|
|
|
|
{
|
|
u2_uhot* hot_u;
|
|
|
|
for ( hot_u = u2_Host.unx_u.hot_u; hot_u; hot_u = hot_u->nex_u ) {
|
|
u2_unix_release(hot_u->dir_u.pax_c);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* u2_unix_io_poll(): update unix IO state.
|
|
*/
|
|
void
|
|
u2_unix_io_poll(void)
|
|
{
|
|
u2_unix* unx_u = &u2_Host.unx_u;
|
|
u2_noun wen = u2_reck_keep(u2A, u2nt(c3__gold, c3__clay, u2_nul));
|
|
|
|
if ( (u2_nul != wen) &&
|
|
(u2_yes == u2du(wen)) &&
|
|
(u2_yes == u2ud(u2t(wen))) )
|
|
{
|
|
c3_d gap_d = u2_time_gap_ms(u2k(u2A->now), u2k(u2t(wen)));
|
|
|
|
if ( u2_yes == unx_u->alm ) {
|
|
uv_timer_stop(&unx_u->tim_u);
|
|
}
|
|
else unx_u->alm = u2_yes;
|
|
|
|
uv_timer_start(&unx_u->tim_u, _unix_time_cb, gap_d, 0);
|
|
}
|
|
else {
|
|
if ( u2_yes == unx_u->alm ) {
|
|
uv_timer_stop(&unx_u->tim_u);
|
|
}
|
|
unx_u->alm = u2_no;
|
|
}
|
|
u2z(wen);
|
|
}
|
|
|