Add the base Enlightenment Foundation Libraries - eina, eet, evas, ecore, embryo, and edje.

Note that embryo wont be used, but I'm not sure yet if you can build edje without it.
author: David Walter Seikel 2012-01-04 18:41:13 +1000
committer: David Walter Seikel 2012-01-04 18:41:13 +1000
commit: dd7595a3475407a7fa96a97393bae8c5220e8762 (patch)
tree: e341e911d7eb911a51684a7412ef7f7c7605d28e /libraries/eina/src/lib/eina_file_win32.c
parent: Add the skeleton. (diff)
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1 files changed, 1021 insertions, 0 deletions
diff --git a/libraries/eina/src/lib/eina_file_win32.c b/libraries/eina/src/lib/eina_file_win32.c
new file mode 100644
index 0000000..1cd8665
--- /dev/null
+++ b/libraries/eina/src/lib/eina_file_win32.c
@@ -0,0 +1,1021 @@
+/* EINA - EFL data type library
+ * Copyright (C) 2010 Vincent Torri
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library;
+ * if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+#elif defined __GNUC__
+# define alloca __builtin_alloca
+#elif defined _AIX
+# define alloca __alloca
+#elif defined _MSC_VER
+# include <malloc.h>
+# define alloca _alloca
+#else
+# include <stddef.h>
+# ifdef  __cplusplus
+extern "C"
+# endif
+void *alloca (size_t);
+#endif
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#undef WIN32_LEAN_AND_MEAN
+//#include <Evil.h>
+#include "eina_config.h"
+#include "eina_private.h"
+/* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
+#include "eina_safety_checks.h"
+#include "eina_file.h"
+#include "eina_stringshare.h"
+#include "eina_hash.h"
+#include "eina_list.h"
+/*============================================================================*
+ *                                  Local                                     *
+ *============================================================================*/
+/**
+ * @cond LOCAL
+ */
+#ifndef EINA_LOG_COLOR_DEFAULT
+#define EINA_LOG_COLOR_DEFAULT EINA_COLOR_CYAN
+#endif
+#ifdef ERR
+#undef ERR
+#endif
+#define ERR(...) EINA_LOG_DOM_ERR(_eina_file_log_dom, __VA_ARGS__)
+#ifdef WRN
+#undef WRN
+#endif
+#define WRN(...) EINA_LOG_DOM_WARN(_eina_file_log_dom, __VA_ARGS__)
+#ifdef DBG
+#undef DBG
+#endif
+#define DBG(...) EINA_LOG_DOM_DBG(_eina_file_log_dom, __VA_ARGS__)
+#ifdef MAP_FAILED
+# undef MAP_FAILED
+#endif
+#define MAP_FAILED ((void *)-1)
+typedef struct _Eina_File_Iterator        Eina_File_Iterator;
+typedef struct _Eina_File_Direct_Iterator Eina_File_Direct_Iterator;
+typedef struct _Eina_File_Map             Eina_File_Map;
+struct _Eina_File_Iterator
+{
+   Eina_Iterator   iterator;
+   WIN32_FIND_DATA data;
+   HANDLE          handle;
+   size_t          length;
+   Eina_Bool       is_last : 1;
+   char            dir[1];
+};
+struct _Eina_File_Direct_Iterator
+{
+   Eina_Iterator         iterator;
+   WIN32_FIND_DATA       data;
+   HANDLE                handle;
+   size_t                length;
+   Eina_Bool             is_last : 1;
+   Eina_File_Direct_Info info;
+   char                  dir[1];
+};
+struct _Eina_File
+{
+   const char *filename;
+   Eina_Hash *map;
+   Eina_Hash *rmap;
+   void *global_map;
+   ULONGLONG length;
+   ULONGLONG mtime;
+   int refcount;
+   int global_refcount;
+   HANDLE handle;
+   HANDLE fm;
+   Eina_Bool shared : 1;
+   Eina_Bool delete_me : 1;
+};
+struct _Eina_File_Map
+{
+   void *map;
+   unsigned long int offset;
+   unsigned long int length;
+   int refcount;
+};
+static Eina_Hash *_eina_file_cache = NULL;
+static Eina_List *_eina_file_cache_lru = NULL;
+static Eina_List *_eina_file_cache_delete = NULL;
+static int _eina_file_log_dom = -1;
+static void
+_eina_file_win32_backslash_change(char *dir)
+{
+   char *tmp;
+   tmp = dir;
+   while (*tmp)
+     {
+        if (*tmp == '/') *tmp = '\\';
+        tmp++;
+     }
+}
+static Eina_Bool
+_eina_file_win32_is_dir(const char *dir)
+{
+#ifdef UNICODE
+   wchar_t *wdir = NULL;
+#endif
+   DWORD    attr;
+   /* check if it's a directory */
+#ifdef UNICODE
+   wdir = evil_char_to_wchar(dir);
+   if (!wdir)
+     return EINA_FALSE;
+   attr = GetFileAttributes(wdir);
+   free(wdir);
+#else
+   attr = GetFileAttributes(dir);
+#endif
+   if (attr == 0xFFFFFFFF)
+     return EINA_FALSE;
+   if (!(attr & FILE_ATTRIBUTE_DIRECTORY))
+     return EINA_FALSE;
+   return EINA_TRUE;
+}
+static char *
+_eina_file_win32_dir_new(const char *dir)
+{
+   char *new_dir;
+   size_t length;
+   length = strlen(dir);
+   new_dir = (char *)malloc(sizeof(char) * length + 5);
+   if (!new_dir)
+     return NULL;
+   memcpy(new_dir, dir, length);
+   memcpy(new_dir + length, "\\*.*", 5);
+   _eina_file_win32_backslash_change(new_dir);
+   return new_dir;
+}
+static HANDLE
+_eina_file_win32_first_file(const char *dir, WIN32_FIND_DATA *fd)
+{
+  HANDLE h;
+#ifdef UNICODE
+   wchar_t *wdir = NULL;
+   wdir = evil_char_to_wchar(dir);
+   if (!wdir)
+     return NULL;
+   h = FindFirstFile(wdir, fd);
+   free(wdir);
+#else
+   h = FindFirstFile(dir, fd);
+#endif
+   if (!h)
+     return NULL;
+   while ((fd->cFileName[0] == '.') &&
+          ((fd->cFileName[1] == '\0') ||
+           ((fd->cFileName[1] == '.') && (fd->cFileName[2] == '\0'))))
+     {
+        if (!FindNextFile(h, fd))
+          return NULL;
+     }
+   return h;
+}
+static Eina_Bool
+_eina_file_win32_ls_iterator_next(Eina_File_Iterator *it, void **data)
+{
+#ifdef UNICODE
+   wchar_t  *old_name;
+#else
+   char     *old_name;
+#endif
+   char     *name;
+   char     *cname;
+   size_t    length;
+   Eina_Bool is_last;
+   Eina_Bool res = EINA_TRUE;
+   if (it->handle == INVALID_HANDLE_VALUE)
+     return EINA_FALSE;
+   is_last = it->is_last;
+#ifdef UNICODE
+   old_name = _wcsdup(it->data.cFileName);
+#else
+   old_name = _strdup(it->data.cFileName);
+#endif
+   if (!old_name)
+     return EINA_FALSE;
+   do {
+      if (!FindNextFile(it->handle, &it->data))
+        {
+           if (GetLastError() == ERROR_NO_MORE_FILES)
+             it->is_last = EINA_TRUE;
+           else
+             res = EINA_FALSE;
+        }
+   } while ((it->data.cFileName[0] == '.') &&
+            ((it->data.cFileName[1] == '\0') ||
+             ((it->data.cFileName[1] == '.') && (it->data.cFileName[2] == '\0')))); /* FIXME: what about UNICODE ? */
+#ifdef UNICODE
+   cname = evil_wchar_to_char(old_name);
+   if (!cname)
+     return EINA_FALSE;
+#else
+     cname = old_name;
+#endif
+   length = strlen(cname);
+   name = alloca(length + 2 + it->length);
+   memcpy(name,                  it->dir, it->length);
+   memcpy(name + it->length,     "\\",    1);
+   memcpy(name + it->length + 1, cname,   length + 1);
+   *data = (char *)eina_stringshare_add(name);
+#ifdef UNICODE
+   free(cname);
+#endif
+   free(old_name);
+   if (is_last)
+     res = EINA_FALSE;
+   return res;
+}
+static HANDLE
+_eina_file_win32_ls_iterator_container(Eina_File_Iterator *it)
+{
+   return it->handle;
+}
+static void
+_eina_file_win32_ls_iterator_free(Eina_File_Iterator *it)
+{
+   if (it->handle != INVALID_HANDLE_VALUE)
+     FindClose(it->handle);
+   EINA_MAGIC_SET(&it->iterator, 0);
+   free(it);
+}
+static Eina_Bool
+_eina_file_win32_direct_ls_iterator_next(Eina_File_Direct_Iterator *it, void **data)
+{
+#ifdef UNICODE
+   wchar_t  *old_name;
+#else
+   char     *old_name;
+#endif
+   char     *cname;
+   size_t    length;
+   DWORD     attr;
+   Eina_Bool is_last;
+   Eina_Bool res = EINA_TRUE;
+   if (it->handle == INVALID_HANDLE_VALUE)
+     return EINA_FALSE;
+   attr = it->data.dwFileAttributes;
+   is_last = it->is_last;
+#ifdef UNICODE
+   old_name = _wcsdup(it->data.cFileName);
+#else
+   old_name = _strdup(it->data.cFileName);
+#endif
+   if (!old_name)
+     return EINA_FALSE;
+   do {
+      if (!FindNextFile(it->handle, &it->data))
+        {
+           if (GetLastError() == ERROR_NO_MORE_FILES)
+             it->is_last = EINA_TRUE;
+           else
+             res = EINA_FALSE;
+        }
+#ifdef UNICODE
+     length = wcslen(old_name);
+#else
+     length = strlen(old_name);
+#endif
+     if (it->info.name_start + length + 1 >= PATH_MAX)
+       {
+          free(old_name);
+#ifdef UNICODE
+          old_name = _wcsdup(it->data.cFileName);
+#else
+          old_name = _strdup(it->data.cFileName);
+#endif
+          continue;
+       }
+   } while ((it->data.cFileName[0] == '.') &&
+            ((it->data.cFileName[1] == '\0') ||
+             ((it->data.cFileName[1] == '.') && (it->data.cFileName[2] == '\0')))); /* FIXME: what about UNICODE ? */
+#ifdef UNICODE
+   cname = evil_wchar_to_char(old_name);
+   if (!cname)
+     return EINA_FALSE;
+#else
+     cname = old_name;
+#endif
+   memcpy(it->info.path + it->info.name_start, cname, length);
+   it->info.name_length = length;
+   it->info.path_length = it->info.name_start + length;
+   it->info.path[it->info.path_length] = '\0';
+   if (attr & FILE_ATTRIBUTE_DIRECTORY)
+     it->info.type = EINA_FILE_DIR;
+   else if (attr & FILE_ATTRIBUTE_REPARSE_POINT)
+     it->info.type = EINA_FILE_LNK;
+   else if (attr & (FILE_ATTRIBUTE_ARCHIVE |
+                    FILE_ATTRIBUTE_COMPRESSED |
+                    FILE_ATTRIBUTE_COMPRESSED |
+                    FILE_ATTRIBUTE_HIDDEN |
+                    FILE_ATTRIBUTE_NORMAL |
+                    FILE_ATTRIBUTE_SPARSE_FILE |
+                    FILE_ATTRIBUTE_TEMPORARY))
+     it->info.type = EINA_FILE_REG;
+   else
+     it->info.type = EINA_FILE_UNKNOWN;
+   *data = &it->info;
+#ifdef UNICODE
+   free(cname);
+#endif
+   free(old_name);
+   if (is_last)
+     res = EINA_FALSE;
+   return res;
+}
+static HANDLE
+_eina_file_win32_direct_ls_iterator_container(Eina_File_Direct_Iterator *it)
+{
+   return it->handle;
+}
+static void
+_eina_file_win32_direct_ls_iterator_free(Eina_File_Direct_Iterator *it)
+{
+   if (it->handle != INVALID_HANDLE_VALUE)
+     FindClose(it->handle);
+   EINA_MAGIC_SET(&it->iterator, 0);
+   free(it);
+}
+static void
+_eina_file_real_close(Eina_File *file)
+{
+   eina_hash_free(file->rmap);
+   eina_hash_free(file->map);
+   if (file->global_map != MAP_FAILED)
+     UnmapViewOfFile(file->global_map);
+   CloseHandle(file->fm);
+   CloseHandle(file->handle);
+   eina_stringshare_del(file->filename);
+   free(file);
+}
+static void
+_eina_file_map_close(Eina_File_Map *map)
+{
+   if (map->map != MAP_FAILED)
+     UnmapViewOfFile(map->map);
+   free(map);
+}
+static unsigned int
+_eina_file_map_key_length(const void *key __UNUSED__)
+{
+   return sizeof (unsigned long int) * 2;
+}
+static int
+_eina_file_map_key_cmp(const unsigned long int *key1, int key1_length __UNUSED__,
+                       const unsigned long int *key2, int key2_length __UNUSED__)
+{
+   if (key1[0] - key2[0] == 0) return key1[1] - key2[1];
+   return key1[0] - key2[0];
+}
+static int
+_eina_file_map_key_hash(const unsigned long int *key, int key_length __UNUSED__)
+{
+   return eina_hash_int64(&key[0], sizeof (unsigned long int))
+     ^ eina_hash_int64(&key[1], sizeof (unsigned long int));
+}
+Eina_Bool
+eina_file_init(void)
+{
+   _eina_file_log_dom = eina_log_domain_register("eina_file",
+                                                 EINA_LOG_COLOR_DEFAULT);
+   if (_eina_file_log_dom < 0)
+     {
+        EINA_LOG_ERR("Could not register log domain: eina_file");
+        return EINA_FALSE;
+     }
+   _eina_file_cache = eina_hash_string_djb2_new(EINA_FREE_CB(_eina_file_real_close));
+   if (!_eina_file_cache)
+     {
+        ERR("Could not create cache.");
+        eina_log_domain_unregister(_eina_file_log_dom);
+        _eina_file_log_dom = -1;
+        return EINA_FALSE;
+     }
+   return EINA_TRUE;
+}
+Eina_Bool
+eina_file_shutdown(void)
+{
+   Eina_File *f;
+   Eina_List *l;
+   EINA_LIST_FREE(_eina_file_cache_delete, f)
+     _eina_file_real_close(f);
+   EINA_LIST_FOREACH(_eina_file_cache_lru, l, f)
+     eina_hash_del(_eina_file_cache, f->filename, f);
+   if (eina_hash_population(_eina_file_cache) > 0)
+     {
+        Eina_Iterator *it;
+        const char *key;
+        it = eina_hash_iterator_key_new(_eina_file_cache);
+        EINA_ITERATOR_FOREACH(it, key)
+          ERR("File [%s] still open !", key);
+        eina_iterator_free(it);
+     }
+   eina_hash_free(_eina_file_cache);
+   eina_log_domain_unregister(_eina_file_log_dom);
+   _eina_file_log_dom = -1;
+   return EINA_TRUE;
+}
+/**
+ * @endcond
+ */
+/*============================================================================*
+ *                                 Global                                     *
+ *============================================================================*/
+/*============================================================================*
+ *                                   API                                      *
+ *============================================================================*/
+EAPI Eina_Bool
+eina_file_dir_list(const char *dir,
+                   Eina_Bool recursive,
+                   Eina_File_Dir_List_Cb cb,
+                   void *data)
+{
+   WIN32_FIND_DATA file;
+   HANDLE h;
+   char *new_dir;
+   EINA_SAFETY_ON_NULL_RETURN_VAL(cb,  EINA_FALSE);
+   EINA_SAFETY_ON_NULL_RETURN_VAL(dir, EINA_FALSE);
+   EINA_SAFETY_ON_TRUE_RETURN_VAL(dir[0] == '\0', EINA_FALSE);
+   if (!_eina_file_win32_is_dir(dir))
+     return EINA_FALSE;
+   new_dir = _eina_file_win32_dir_new(dir);
+   if (!new_dir)
+      return EINA_FALSE;
+   h = _eina_file_win32_first_file(new_dir, &file);
+   if (h == INVALID_HANDLE_VALUE)
+      return EINA_FALSE;
+   do
+     {
+        char *filename;
+# ifdef UNICODE
+        filename = evil_wchar_to_char(file.cFileName);
+# else
+        filename = file.cFileName;
+# endif /* ! UNICODE */
+        if (!strcmp(filename, ".") || !strcmp(filename, ".."))
+           continue;
+        cb(filename, dir, data);
+        if (recursive == EINA_TRUE)
+          {
+             char *path;
+             path = alloca(strlen(dir) + strlen(filename) + 2);
+             strcpy(path, dir);
+             strcat(path, "/");
+             strcat(path, filename);
+             if (!(file.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
+                continue;
+             eina_file_dir_list(path, recursive, cb, data);
+          }
+# ifdef UNICODE
+        free(filename);
+# endif /* UNICODE */
+     } while (FindNextFile(h, &file));
+   FindClose(h);
+   return EINA_TRUE;
+}
+EAPI Eina_Array *
+eina_file_split(char *path)
+{
+   Eina_Array *ea;
+   char *current;
+   size_t length;
+   EINA_SAFETY_ON_NULL_RETURN_VAL(path, NULL);
+   ea = eina_array_new(16);
+   if (!ea)
+      return NULL;
+   for (current = strchr(path, '\\');
+        current;
+        path = current + 1, current = strchr(path, '\\'))
+     {
+        length = current - path;
+        if (length <= 0)
+           continue;
+        eina_array_push(ea, path);
+        *current = '\0';
+     }
+   if (*path != '\0')
+        eina_array_push(ea, path);
+   return ea;
+}
+EAPI Eina_Iterator *
+eina_file_ls(const char *dir)
+{
+   Eina_File_Iterator *it;
+   char               *new_dir;
+   size_t              length;
+   if (!dir || !*dir)
+      return NULL;
+   if (!_eina_file_win32_is_dir(dir))
+     return NULL;
+   length = strlen(dir);
+   it = calloc(1, sizeof (Eina_File_Iterator) + length);
+   if (!it)
+      return NULL;
+   EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
+   new_dir = _eina_file_win32_dir_new(dir);
+   if (!new_dir)
+      goto free_it;
+   it->handle = _eina_file_win32_first_file(new_dir, &it->data);
+   free(new_dir);
+   if (it->handle == INVALID_HANDLE_VALUE)
+     goto free_it;
+   memcpy(it->dir, dir, length + 1);
+   if (dir[length - 1] != '\\')
+      it->length = length;
+   else
+      it->length = length - 1;
+   _eina_file_win32_backslash_change(it->dir);
+   it->iterator.version = EINA_ITERATOR_VERSION;
+   it->iterator.next = FUNC_ITERATOR_NEXT(_eina_file_win32_ls_iterator_next);
+   it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_eina_file_win32_ls_iterator_container);
+   it->iterator.free = FUNC_ITERATOR_FREE(_eina_file_win32_ls_iterator_free);
+   return &it->iterator;
+ free_it:
+   free(it);
+   return NULL;
+}
+EAPI Eina_Iterator *
+eina_file_direct_ls(const char *dir)
+{
+   Eina_File_Direct_Iterator *it;
+   char                      *new_dir;
+   size_t                     length;
+   if (!dir || !*dir)
+      return NULL;
+   length = strlen(dir);
+   if (length + 12 + 2 >= MAX_PATH)
+      return NULL;
+   it = calloc(1, sizeof(Eina_File_Direct_Iterator) + length);
+   if (!it)
+      return NULL;
+   EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
+   new_dir = _eina_file_win32_dir_new(dir);
+   if (!new_dir)
+      goto free_it;
+   it->handle = _eina_file_win32_first_file(new_dir, &it->data);
+   free(new_dir);
+   if (it->handle == INVALID_HANDLE_VALUE)
+     goto free_it;
+   memcpy(it->dir, dir, length + 1);
+   it->length = length;
+   _eina_file_win32_backslash_change(it->dir);
+   memcpy(it->info.path, dir, length);
+   if (dir[length - 1] == '\\')
+      it->info.name_start = length;
+   else
+     {
+        it->info.path[length] = '\\';
+        it->info.name_start = length + 1;
+     }
+   _eina_file_win32_backslash_change(it->info.path);
+   it->iterator.version = EINA_ITERATOR_VERSION;
+   it->iterator.next = FUNC_ITERATOR_NEXT(_eina_file_win32_direct_ls_iterator_next);
+   it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_eina_file_win32_direct_ls_iterator_container);
+   it->iterator.free = FUNC_ITERATOR_FREE(_eina_file_win32_direct_ls_iterator_free);
+   return &it->iterator;
+ free_it:
+   free(it);
+   return NULL;
+}
+EAPI Eina_Iterator *
+eina_file_stat_ls(const char *dir)
+{
+   return eina_file_direct_ls(dir);
+}
+EAPI Eina_File *
+eina_file_open(const char *filename, Eina_Bool shared)
+{
+   Eina_File *file;
+   Eina_File *n;
+   HANDLE handle;
+   HANDLE fm;
+   WIN32_FILE_ATTRIBUTE_DATA fad;
+   ULARGE_INTEGER length;
+   ULARGE_INTEGER mtime;
+   Eina_Bool create = EINA_FALSE;
+   /* FIXME: always open absolute path (need to fix filename according to current
+      directory) */
+   /* FIXME: how to emulate shm_open ? Just OpenFileMapping ? */
+#if 0
+   if (shared)
+     handle = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ,
+                         NULL, OPEN_EXISTING, FILE_ATTRIBUTE_READONLY,
+                         NULL);
+   else
+#endif
+     handle = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ,
+                         NULL, OPEN_EXISTING, FILE_ATTRIBUTE_READONLY,
+                         NULL);
+   if (handle == INVALID_HANDLE_VALUE)
+     return NULL;
+   fm = CreateFileMapping(handle, NULL, PAGE_READONLY, 0, 0, NULL);
+   if (!fm)
+     goto close_handle;
+   if (!GetFileAttributesEx(filename, GetFileExInfoStandard, &fad))
+     goto close_fm;
+   length.u.LowPart = fad.nFileSizeLow;
+   length.u.HighPart = fad.nFileSizeHigh;
+   mtime.u.LowPart = fad.ftLastWriteTime.dwLowDateTime;
+   mtime.u.HighPart = fad.ftLastWriteTime.dwHighDateTime;
+   file = eina_hash_find(_eina_file_cache, filename);
+   if (file &&
+       (file->mtime != mtime.QuadPart || file->length != length.QuadPart))
+     {
+        create = EINA_TRUE;
+        if (file->refcount == 0)
+          {
+             _eina_file_cache_lru = eina_list_prepend(_eina_file_cache_lru, file);
+             eina_hash_del(_eina_file_cache, file->filename, file);
+             file = NULL;
+          }
+        else if (!file->delete_me)
+          {
+             file->delete_me = EINA_TRUE;
+             _eina_file_cache_delete = eina_list_prepend(_eina_file_cache_delete, file);
+          }
+     }
+   if (!file || create)
+     {
+        n = calloc(1, sizeof (Eina_File));
+        if (!n)
+          goto close_fm;
+        n->filename = eina_stringshare_add(filename);
+        n->map = eina_hash_new(EINA_KEY_LENGTH(_eina_file_map_key_length),
+                               EINA_KEY_CMP(_eina_file_map_key_cmp),
+                               EINA_KEY_HASH(_eina_file_map_key_hash),
+                               EINA_FREE_CB(_eina_file_map_close),
+                               3);
+        n->rmap = eina_hash_pointer_new(NULL);
+        n->global_map = MAP_FAILED;
+        n->length = length.QuadPart;
+        n->mtime = mtime.QuadPart;
+        n->refcount = 0;
+        n->handle = handle;
+        n->fm = fm;
+        n->shared = shared;
+        n->delete_me = EINA_FALSE;
+        eina_hash_set(_eina_file_cache, filename, n);
+     }
+   else
+     {
+        CloseHandle(fm);
+        CloseHandle(handle);
+        n = file;
+        if (n->refcount == 0)
+          _eina_file_cache_lru = eina_list_remove(_eina_file_cache_lru, n);
+     }
+   n->refcount++;
+   return n;
+ close_fm:
+   CloseHandle(fm);
+ close_handle:
+   CloseHandle(handle);
+   return NULL;
+}
+EAPI void
+eina_file_close(Eina_File *file)
+{
+   file->refcount--;
+   if (file->refcount != 0) return ;
+   if (file->delete_me)
+     {
+        _eina_file_cache_delete = eina_list_remove(_eina_file_cache_delete, file);
+        _eina_file_real_close(file);
+     }
+   else
+     {
+        _eina_file_cache_lru = eina_list_prepend(_eina_file_cache_lru, file);
+     }
+}
+EAPI size_t
+eina_file_size_get(Eina_File *file)
+{
+   return file->length;
+}
+EAPI time_t
+eina_file_mtime_get(Eina_File *file)
+{
+  return file->mtime;
+}
+EAPI const char *
+eina_file_filename_get(Eina_File *file)
+{
+   return file->filename;
+}
+EAPI void *
+eina_file_map_all(Eina_File *file, Eina_File_Populate rule __UNUSED__)
+{
+   if (file->global_map == MAP_FAILED)
+     {
+        void  *data;
+        data = MapViewOfFile(file->fm, FILE_MAP_READ,
+                             0, 0, file->length);
+        if (!data)
+          file->global_map = MAP_FAILED;
+        else
+          file->global_map = data;
+     }
+   if (file->global_map != MAP_FAILED)
+     {
+        file->global_refcount++;
+        return file->global_map;
+     }
+   return NULL;
+}
+EAPI void *
+eina_file_map_new(Eina_File *file, Eina_File_Populate rule,
+                  unsigned long int offset, unsigned long int length)
+{
+   Eina_File_Map *map;
+   unsigned long int key[2];
+   if (offset > file->length)
+     return NULL;
+   if (offset + length > file->length)
+     return NULL;
+   if (offset == 0 && length == file->length)
+     return eina_file_map_all(file, rule);
+   key[0] = offset;
+   key[1] = length;
+   map = eina_hash_find(file->map, &key);
+   if (!map)
+     {
+        void  *data;
+        map = malloc(sizeof (Eina_File_Map));
+        if (!map) return NULL;
+        data = MapViewOfFile(file->fm, FILE_MAP_READ,
+                             offset & 0xffff0000,
+                             offset & 0x0000ffff,
+                             length);
+        if (!data)
+          map->map = MAP_FAILED;
+        else
+          map->map = data;
+        map->offset = offset;
+        map->length = length;
+        map->refcount = 0;
+        if (map->map == MAP_FAILED)
+          {
+             free(map);
+             return NULL;
+          }
+        eina_hash_add(file->map, &key, map);
+        eina_hash_direct_add(file->rmap, map->map, map);
+     }
+   map->refcount++;
+   return map->map;
+}
+EAPI void
+eina_file_map_free(Eina_File *file, void *map)
+{
+   if (file->global_map == map)
+     {
+        file->global_refcount--;
+        if (file->global_refcount > 0) return ;
+        /* FIXME: are we sure that file->global_map != MAP_FAILED ? */
+        if (file->global_map != MAP_FAILED)
+          UnmapViewOfFile(file->global_map);
+        file->global_map = MAP_FAILED;
+     }
+   else
+     {
+        Eina_File_Map *em;
+        unsigned long int key[2];
+        em = eina_hash_find(file->rmap, &map);
+        if (!em) return ;
+        em->refcount--;
+        if (em->refcount > 0) return ;
+        key[0] = em->offset;
+        key[1] = em->length;
+        eina_hash_del(file->rmap, &map, em);
+        eina_hash_del(file->map, &key, em);
+     }
+}
author	David Walter Seikel	2012-01-04 18:41:13 +1000
committer	David Walter Seikel	2012-01-04 18:41:13 +1000
commit	dd7595a3475407a7fa96a97393bae8c5220e8762 (patch)
tree	e341e911d7eb911a51684a7412ef7f7c7605d28e /libraries/eina/src/lib/eina_file_win32.c
parent	Add the skeleton. (diff)
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