forked from enlightenment/efl
355 lines
9.4 KiB
C
355 lines
9.4 KiB
C
/* EIO - EFL data type library
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* Copyright (C) 2011 Enlightenment Developers:
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* Cedric Bail <cedric.bail@free.fr>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library;
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* if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "eio_private.h"
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#include "Eio.h"
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/*============================================================================*
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* Local *
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*============================================================================*/
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/**
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* @cond LOCAL
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*/
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typedef struct _Eio_Monitor_Stat Eio_Monitor_Stat;
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struct _Eio_Monitor_Stat
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{
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Eina_Stat buffer;
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int version;
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};
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struct _Eio_Monitor_Backend
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{
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Eio_Monitor *parent;
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Eina_Stat self;
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Eina_Hash *children;
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Ecore_Timer *timer;
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Ecore_Idler *idler;
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Ecore_Thread *work;
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int version;
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Eina_Bool delete_me : 1;
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Eina_Bool initialised : 1;
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Eina_Bool destroyed : 1;
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};
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static Eina_Bool _eio_monitor_fallback_timer_cb(void *data);
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static void
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_eio_monitor_fallback_heavy_cb(void *data, Ecore_Thread *thread)
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{
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Eio_Monitor_Backend *backend = data;
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Eina_Iterator *it;
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Eina_Stat *est;
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Eina_File_Direct_Info *info;
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_eio_stat_t st;
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/* FIXME : copy ecore_file_monitor_poll here */
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if (!backend->initialised)
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est = &backend->self;
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else
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est = alloca(sizeof (Eina_Stat));
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if (!backend->parent)
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return;
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if (_eio_stat(backend->parent->path, &st))
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{
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if (backend->initialised && !backend->destroyed)
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{
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ecore_thread_main_loop_begin();
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_eio_monitor_send(backend->parent, backend->parent->path, EIO_MONITOR_SELF_DELETED);
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ecore_thread_main_loop_end();
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backend->destroyed = EINA_TRUE;
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}
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return;
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}
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backend->destroyed = EINA_FALSE;
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est->dev = st.st_dev;
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est->ino = st.st_ino;
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est->mode = st.st_mode;
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est->nlink = st.st_nlink;
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est->uid = st.st_uid;
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est->gid = st.st_gid;
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est->rdev = st.st_rdev;
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est->size = st.st_size;
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#ifdef _WIN32
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est->blksize = 0;
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est->blocks = 0;
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#else
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est->blksize = st.st_blksize;
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est->blocks = st.st_blocks;
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#endif
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est->atime = st.st_atime;
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est->mtime = st.st_mtime;
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est->ctime = st.st_ctime;
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#ifdef _STAT_VER_LINUX
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# if (defined __USE_MISC && defined st_mtime)
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est->atimensec = st.st_atim.tv_nsec;
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est->mtimensec = st.st_mtim.tv_nsec;
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est->ctimensec = st.st_ctim.tv_nsec;
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# else
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est->atimensec = st.st_atimensec;
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est->mtimensec = st.st_mtimensec;
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est->ctimensec = st.st_ctimensec;
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# endif
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#else
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est->atimensec = 0;
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est->mtimensec = 0;
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est->ctimensec = 0;
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#endif
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if (memcmp(est, &backend->self, sizeof (Eina_Stat)) != 0)
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{
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ecore_thread_main_loop_begin();
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_eio_monitor_send(backend->parent, backend->parent->path, EIO_MONITOR_SELF_DELETED);
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ecore_thread_main_loop_end();
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}
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it = eina_file_direct_ls(backend->parent->path);
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EINA_ITERATOR_FOREACH(it, info)
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{
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Eio_Monitor_Stat *cmp;
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Eio_Monitor_Stat buffer;
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if (!backend->initialised)
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cmp = calloc(1, sizeof (Eio_Monitor_Stat));
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else
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cmp = &buffer;
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if (eina_file_statat(eina_iterator_container_get(it), info, &cmp->buffer))
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{
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if (!backend->initialised) free(cmp);
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continue ;
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}
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if (!backend->initialised)
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{
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eina_hash_add(backend->children, info->path + info->name_start, cmp);
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}
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else
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{
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cmp = eina_hash_find(backend->children, info->path + info->name_start);
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if (!cmp)
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{
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/* New file or new directory added */
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ecore_thread_main_loop_begin();
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_eio_monitor_send(backend->parent, info->path + info->name_start,
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info->type != EINA_FILE_DIR ? EIO_MONITOR_FILE_CREATED : EIO_MONITOR_DIRECTORY_CREATED);
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ecore_thread_main_loop_end();
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cmp = malloc(sizeof (Eio_Monitor_Stat));
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memcpy(cmp, &buffer, sizeof (Eina_Stat));
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eina_hash_add(backend->children, info->path + info->name_start, cmp);
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}
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else if (memcmp(cmp, &buffer, sizeof (Eina_Stat)) != 0)
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{
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/* file has been modified */
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ecore_thread_main_loop_begin();
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_eio_monitor_send(backend->parent, info->path + info->name_start,
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info->type != EINA_FILE_DIR ? EIO_MONITOR_FILE_MODIFIED : EIO_MONITOR_DIRECTORY_MODIFIED);
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ecore_thread_main_loop_end();
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memcpy(cmp, &buffer, sizeof (Eina_Stat));
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}
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}
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cmp->version = backend->version;
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if (ecore_thread_check(thread)) goto out;
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}
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out:
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if (it) eina_iterator_free(it);
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if (backend->initialised && !ecore_thread_check(thread))
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{
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Eina_Hash_Tuple *tuple;
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it = eina_hash_iterator_tuple_new(backend->children);
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ecore_thread_main_loop_begin();
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EINA_ITERATOR_FOREACH(it, tuple)
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{
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Eio_Monitor_Stat *cmp = tuple->data;
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if (cmp->version != backend->version)
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{
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_eio_monitor_send(backend->parent, tuple->key,
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eio_file_is_dir(&cmp->buffer) ? EIO_MONITOR_DIRECTORY_DELETED : EIO_MONITOR_FILE_DELETED);
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eina_hash_del(backend->children, tuple->key, tuple->data);
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}
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}
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ecore_thread_main_loop_end();
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eina_iterator_free(it);
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}
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backend->version++;
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backend->initialised = EINA_TRUE;
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}
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static void
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_eio_monitor_fallback_end_cb(void *data, Ecore_Thread *thread EINA_UNUSED)
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{
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Eio_Monitor_Backend *backend = data;
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backend->work = NULL;
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backend->timer = ecore_timer_add(60.0, _eio_monitor_fallback_timer_cb, backend);
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}
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static void
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_eio_monitor_fallback_cancel_cb(void *data, Ecore_Thread *thread EINA_UNUSED)
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{
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Eio_Monitor_Backend *backend = data;
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backend->work = NULL;
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if (backend->delete_me)
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{
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free(backend);
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return;
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}
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backend->timer = ecore_timer_add(60.0, _eio_monitor_fallback_timer_cb, backend);
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}
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static Eina_Bool
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_eio_monitor_fallback_idler_cb(void *data)
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{
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Eio_Monitor_Backend *backend = data;
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backend->idler = NULL;
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backend->work = ecore_thread_run(_eio_monitor_fallback_heavy_cb,
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_eio_monitor_fallback_end_cb,
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_eio_monitor_fallback_cancel_cb,
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backend);
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return EINA_FALSE;
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}
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static Eina_Bool
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_eio_monitor_fallback_timer_cb(void *data)
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{
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Eio_Monitor_Backend *backend = data;
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backend->timer = NULL;
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backend->idler = ecore_idler_add(_eio_monitor_fallback_idler_cb, backend);
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return EINA_FALSE;
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}
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/**
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* @endcond
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*/
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/*============================================================================*
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* Global *
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*============================================================================*/
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/**
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* @cond LOCAL
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*/
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#if !defined HAVE_SYS_INOTIFY_H && !defined HAVE_NOTIFY_WIN32
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void eio_monitor_backend_init(void)
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{
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}
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void eio_monitor_backend_shutdown(void)
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{
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}
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void eio_monitor_backend_add(Eio_Monitor *monitor)
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{
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eio_monitor_fallback_add(monitor);
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}
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void eio_monitor_backend_del(Eio_Monitor *monitor)
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{
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eio_monitor_fallback_del(monitor);
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}
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#endif
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void
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eio_monitor_fallback_init(void)
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{
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}
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void
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eio_monitor_fallback_shutdown(void)
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{
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}
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void
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eio_monitor_fallback_add(Eio_Monitor *monitor)
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{
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Eio_Monitor_Backend *backend;
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monitor->backend = NULL;
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backend = calloc(1, sizeof (Eio_Monitor_Backend));
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if (!backend) return;
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backend->children = eina_hash_string_superfast_new(free);
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backend->parent = monitor;
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monitor->backend = backend;
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backend->work = ecore_thread_run(_eio_monitor_fallback_heavy_cb,
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_eio_monitor_fallback_end_cb,
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_eio_monitor_fallback_cancel_cb,
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backend);
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}
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void
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eio_monitor_fallback_del(Eio_Monitor *monitor)
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{
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Eio_Monitor_Backend *backend;
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backend = monitor->backend;
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monitor->backend = NULL;
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if (!backend) return;
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backend->parent = NULL;
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if (backend->timer) ecore_timer_del(backend->timer);
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backend->timer = NULL;
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if (backend->idler) ecore_idler_del(backend->idler);
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backend->idler = NULL;
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if (backend->work)
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{
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backend->delete_me = EINA_TRUE;
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ecore_thread_cancel(backend->work);
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return;
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}
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eina_hash_free(backend->children);
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free(backend);
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}
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/**
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* @endcond
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*/
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/*============================================================================*
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* API *
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*============================================================================*/
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