[prefer_assert=$enableval]
)
+# Examples
+
+AC_ARG_ENABLE([install-examples],
+ [AC_HELP_STRING([--disable-install-examples],
+ [disable installing examples (compiled or just source). @<:@default==enabled@:>@])],
+ [
+ if test "x${enableval}" = "xyes" ; then
+ install_examples="yes"
+ else
+ install_examples="no"
+ fi
+ ],
+ [install_examples="yes"])
+AM_CONDITIONAL([INSTALL_EXAMPLES], [test "x${install_examples}" = "xyes"])
+
+AC_ARG_ENABLE([build-examples],
+ [AC_HELP_STRING([--enable-build-examples],
+ [enable building examples. @<:@default==disabled@:>@])],
+ [
+ if test "x${enableval}" = "xyes" ; then
+ build_examples="yes"
+ else
+ build_examples="no"
+ fi
+ ],
+ [build_examples="no"])
+AM_CONDITIONAL([BUILD_EXAMPLES], [test "x${build_examples}" = "xyes"])
+
# Unit tests, coverage and benchmarking
EFL_CHECK_TESTS([enable_tests="yes"], [enable_tests="no"])
src/lib/Makefile
src/bin/Makefile
src/tests/Makefile
+src/examples/Makefile
README
eet.spec
])
echo " Build eet............: $have_eet"
echo
echo " Documentation........: ${build_doc}"
+if test "x${build_doc}" = "xyes" ; then
+ echo " Building...........: make doc"
+fi
+echo " Examples.............: ${build_examples}"
+if test "x${build_examples}" = "xyes" ; then
+ echo " Install............: ${install_examples}"
+fi
echo
echo "Compilation............: make (or gmake)"
echo " CPPFLAGS.............: $CPPFLAGS"
PROJECT_NAME = Eet
PROJECT_NUMBER =
OUTPUT_DIRECTORY = .
-INPUT = eet.dox ../src/lib
+INPUT = eet.dox examples.dox ../src/lib
IMAGE_PATH = img
OUTPUT_LANGUAGE = English
GENERATE_HTML = YES
EXCLUDE =
EXCLUDE_SYMLINKS = NO
EXCLUDE_PATTERNS =
-EXAMPLE_PATH =
+EXAMPLE_PATH = ../src/examples/
EXAMPLE_PATTERNS =
EXAMPLE_RECURSIVE = NO
INPUT_FILTER =
--- /dev/null
+/**
+ * @page Examples Examples
+ *
+ * Here is a page with examples.
+ *
+ * @ref Example_Eet_Data_Simple
+ *
+ * @ref Example_Eet_Data_Nested
+ *
+ * @ref Example_Eet_Data_File_Descriptor
+ *
+ * <a href="examples.html">List of examples</a>
+ */
+
+/**
+ * @page Example_Eet_Data_Simple Simple data example
+ *
+ * @includelineno eet-data-simple.c
+ * @example eet-data-simple.c
+ */
+
+/**
+ * @page Example_Eet_Data_Nested Nested data example
+ *
+ * @includelineno eet-data-nested.c
+ * @example eet-data-nested.c
+ */
+
+/**
+ * @page Example_Eet_Data_File_Descriptor File descriptor data example
+ *
+ * @includelineno eet-data-file_descriptor.c
+ * @example eet-data-file_descriptor.c
+ */
<div class="menu-container">
<div class="submenu">
<ul class="current">
- <li><a href="todo.html">Todo</a></li>
+ <li><a href="Examples.html">Examples</a></li>
<li><a href="files.html">Files</a></li>
<li><a href="modules.html">Modules</a></li>
<li><a href="globals.html">Globals</a></li>
MAINTAINERCLEANFILES = Makefile.in
SUBDIRS = lib bin tests
+
+if BUILD_EXAMPLES
+
+SUBDIRS += examples
+
+endif
--- /dev/null
+MAINTAINERCLEANFILES = Makefile.in
+
+pkglibdir = $(datadir)/$(PACKAGE)/examples
+
+AM_CPPFLAGS = \
+-I. \
+-I$(top_srcdir)/src/lib \
+@EINA_CFLAGS@
+
+pkglib_PROGRAMS = eet_data_simple eet_data_nested eet_data_file_descriptor
+
+eet_data_simple_SOURCES = eet-data-simple.c
+eet_data_simple_LDADD = $(top_builddir)/src/lib/libeet.la @EINA_LIBS@
+
+eet_data_nested_SOURCES = eet-data-nested.c
+eet_data_nested_LDADD = $(top_builddir)/src/lib/libeet.la @EINA_LIBS@
+
+eet_data_file_descriptor_SOURCES = eet-data-file_descriptor.c
+eet_data_file_descriptor_LDADD = $(top_builddir)/src/lib/libeet.la @EINA_LIBS@
+
+
+filesdir = $(datadir)/$(PACKAGE)/examples
+files_DATA =
+
+if INSTALL_EXAMPLES
+
+files_DATA += \
+eet-data-simple.c \
+eet-data-nested.c \
+eet-data-file_descriptor.c
+
+endif
--- /dev/null
+#include <Eina.h>
+#include <Eet.h>
+#include <stdio.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+// complex real-world structures based on elmdentica database
+typedef struct {
+ const char *screen_name;
+ const char *name;
+ const char *message;
+ unsigned int id;
+ unsigned int status_id;
+ unsigned int date;
+ unsigned int timeline;
+} My_Message;
+
+typedef struct {
+ const char *dm_to;
+ const char *message;
+} My_Post;
+
+typedef struct {
+ unsigned int id;
+ const char *name;
+ Eina_List *messages;
+ Eina_List *posts;
+} My_Account;
+
+typedef struct {
+ unsigned int version; // it is recommended to use versioned configuration!
+ Eina_List *accounts;
+} My_Cache;
+
+// string that represents the entry in eet file, you might like to have
+// different profiles or so in the same file, this is possible with
+// different strings
+static const char MY_CACHE_FILE_ENTRY[] = "cache";
+
+// keep the descriptor static global, so it can be
+// shared by different functions (load/save) of this and only this
+// file.
+static Eet_Data_Descriptor *_my_cache_descriptor;
+static Eet_Data_Descriptor *_my_account_descriptor;
+static Eet_Data_Descriptor *_my_message_descriptor;
+static Eet_Data_Descriptor *_my_post_descriptor;
+
+// keep file handle alive, so mmap()ed strings are all alive as well
+static Eet_File *_my_cache_file = NULL;
+static Eet_Dictionary *_my_cache_dict = NULL;
+
+static void
+_my_cache_descriptor_init(void)
+{
+ Eet_Data_Descriptor_Class eddc;
+
+ // The FILE variant is good for caches and things that are just
+ // appended, but needs to take care when changing strings and files must
+ // be kept open so mmap()ed strings will be kept alive.
+ EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Cache);
+ _my_cache_descriptor = eet_data_descriptor_file_new(&eddc);
+
+ EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Account);
+ _my_account_descriptor = eet_data_descriptor_file_new(&eddc);
+
+ EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Message);
+ _my_message_descriptor = eet_data_descriptor_file_new(&eddc);
+
+ EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Post);
+ _my_post_descriptor = eet_data_descriptor_file_new(&eddc);
+
+ // Describe the members to be saved:
+ // Use a temporary macro so we don't type a lot, also avoid errors:
+
+#define ADD_BASIC(member, eet_type) \
+ EET_DATA_DESCRIPTOR_ADD_BASIC \
+ (_my_message_descriptor, My_Message, #member, member, eet_type)
+ ADD_BASIC(screen_name, EET_T_STRING);
+ ADD_BASIC(name, EET_T_STRING);
+ ADD_BASIC(message, EET_T_STRING);
+ ADD_BASIC(id, EET_T_UINT);
+ ADD_BASIC(status_id, EET_T_UINT);
+ ADD_BASIC(date, EET_T_UINT);
+ ADD_BASIC(timeline, EET_T_UINT);
+#undef ADD_BASIC
+
+#define ADD_BASIC(member, eet_type) \
+ EET_DATA_DESCRIPTOR_ADD_BASIC \
+ (_my_post_descriptor, My_Post, #member, member, eet_type)
+ ADD_BASIC(dm_to, EET_T_STRING);
+ ADD_BASIC(message, EET_T_STRING);
+#undef ADD_BASIC
+
+#define ADD_BASIC(member, eet_type) \
+ EET_DATA_DESCRIPTOR_ADD_BASIC \
+ (_my_account_descriptor, My_Account, #member, member, eet_type)
+ ADD_BASIC(name, EET_T_STRING);
+ ADD_BASIC(id, EET_T_UINT);
+#undef ADD_BASIC
+
+ EET_DATA_DESCRIPTOR_ADD_LIST
+ (_my_account_descriptor, My_Account, "messages", messages,
+ _my_message_descriptor);
+ EET_DATA_DESCRIPTOR_ADD_LIST
+ (_my_account_descriptor, My_Account, "posts", posts,
+ _my_post_descriptor);
+
+#define ADD_BASIC(member, eet_type) \
+ EET_DATA_DESCRIPTOR_ADD_BASIC \
+ (_my_cache_descriptor, My_Cache, #member, member, eet_type)
+ ADD_BASIC(version, EET_T_UINT);
+#undef ADD_BASIC
+
+ EET_DATA_DESCRIPTOR_ADD_LIST
+ (_my_cache_descriptor, My_Cache, "accounts", accounts,
+ _my_account_descriptor);
+}
+
+static void
+_my_cache_descriptor_shutdown(void)
+{
+ eet_data_descriptor_free(_my_cache_descriptor);
+ eet_data_descriptor_free(_my_account_descriptor);
+ eet_data_descriptor_free(_my_message_descriptor);
+ eet_data_descriptor_free(_my_post_descriptor);
+}
+
+// need to check if the pointer came from mmaped area in eet_dictionary
+// or it was allocated with eina_stringshare_add()
+static void
+_eet_string_free(const char *str)
+{
+ if (!str)
+ return;
+ if ((_my_cache_dict) && (eet_dictionary_string_check(_my_cache_dict, str)))
+ return;
+ eina_stringshare_del(str);
+}
+
+static My_Message *
+_my_message_new(const char *message)
+{
+ My_Message *msg = calloc(1, sizeof(My_Message));
+ if (!msg)
+ {
+ fprintf(stderr, "ERROR: could not calloc My_Message\n");
+ return NULL;
+ }
+ msg->message = eina_stringshare_add(message);
+ return msg;
+}
+
+static void
+_my_message_free(My_Message *msg)
+{
+ _eet_string_free(msg->screen_name);
+ _eet_string_free(msg->name);
+ _eet_string_free(msg->message);
+ free(msg);
+}
+
+static My_Post *
+_my_post_new(const char *message)
+{
+ My_Post *post = calloc(1, sizeof(My_Post));
+ if (!post)
+ {
+ fprintf(stderr, "ERROR: could not calloc My_Post\n");
+ return NULL;
+ }
+ post->message = eina_stringshare_add(message);
+ return post;
+}
+
+static void
+_my_post_free(My_Post *post)
+{
+ _eet_string_free(post->dm_to);
+ _eet_string_free(post->message);
+ free(post);
+}
+
+static My_Account *
+_my_account_new(const char *name)
+{
+ My_Account *acc = calloc(1, sizeof(My_Account));
+ if (!acc)
+ {
+ fprintf(stderr, "ERROR: could not calloc My_Account\n");
+ return NULL;
+ }
+ acc->name = eina_stringshare_add(name);
+ return acc;
+}
+
+static void
+_my_account_free(My_Account *acc)
+{
+ My_Message *m;
+ My_Post *p;
+
+ _eet_string_free(acc->name);
+
+ EINA_LIST_FREE(acc->messages, m)
+ _my_message_free(m);
+
+ EINA_LIST_FREE(acc->posts, p)
+ _my_post_free(p);
+
+ free(acc);
+}
+
+static My_Cache *
+_my_cache_new(void)
+{
+ My_Cache *my_cache = calloc(1, sizeof(My_Cache));
+ if (!my_cache)
+ {
+ fprintf(stderr, "ERROR: could not calloc My_Cache\n");
+ return NULL;
+ }
+
+ my_cache->version = 1;
+ return my_cache;
+}
+
+static void
+_my_cache_free(My_Cache *my_cache)
+{
+ My_Account *acc;
+ EINA_LIST_FREE(my_cache->accounts, acc)
+ _my_account_free(acc);
+ free(my_cache);
+}
+
+static My_Account *
+_my_cache_account_find(My_Cache *my_cache, const char *name)
+{
+ My_Account *acc;
+ Eina_List *l;
+ EINA_LIST_FOREACH(my_cache->accounts, l, acc)
+ if (strcmp(acc->name, name) == 0)
+ return acc;
+ return NULL;
+}
+
+static My_Cache *
+_my_cache_load(const char *filename)
+{
+ My_Cache *my_cache;
+ Eet_File *ef = eet_open(filename, EET_FILE_MODE_READ);
+ if (!ef)
+ {
+ fprintf(stderr, "ERROR: could not open '%s' for read\n", filename);
+ return NULL;
+ }
+
+ my_cache = eet_data_read(ef, _my_cache_descriptor, MY_CACHE_FILE_ENTRY);
+ if (!my_cache)
+ {
+ eet_close(ef);
+ return NULL;
+ }
+
+ if (my_cache->version < 1)
+ {
+ fprintf(stderr,
+ "WARNING: version %#x was too old, upgrading it to %#x\n",
+ my_cache->version, 1);
+
+ my_cache->version = 1;
+ }
+
+ if (_my_cache_file)
+ eet_close(_my_cache_file);
+ _my_cache_file = ef;
+ _my_cache_dict = eet_dictionary_get(ef);
+
+ return my_cache;
+}
+
+static Eina_Bool
+_my_cache_save(const My_Cache *my_cache, const char *filename)
+{
+ char tmp[PATH_MAX];
+ Eet_File *ef;
+ Eina_Bool ret;
+ unsigned int i, len;
+ struct stat st;
+
+ len = eina_strlcpy(tmp, filename, sizeof(tmp));
+ if (len + 12 >= (int)sizeof(tmp))
+ {
+ fprintf(stderr, "ERROR: file name is too big: %s\n", filename);
+ return EINA_FALSE;
+ }
+
+ i = 0;
+ do
+ {
+ snprintf(tmp + len, 12, ".%u", i);
+ i++;
+ }
+ while (stat(tmp, &st) == 0);
+
+ ef = eet_open(tmp, EET_FILE_MODE_WRITE);
+ if (!ef)
+ {
+ fprintf(stderr, "ERROR: could not open '%s' for write\n", tmp);
+ return EINA_FALSE;
+ }
+
+ ret = eet_data_write
+ (ef, _my_cache_descriptor, MY_CACHE_FILE_ENTRY, my_cache, EINA_TRUE);
+
+ // VERY IMPORTANT NOTE:
+ // after eet_close(), all strings mmaped from file will be GONE, invalid!
+ // you'll need to free the old cache and open the new one.
+ // For cache this is okay, as you should be saving not so often or just
+ // at end.
+ //
+ // This is a trade off, you save memory by using mmap()ed strings, but
+ // you have to care about this.
+ eet_close(ef);
+
+ if (ret)
+ {
+ unlink(filename);
+ rename(tmp, filename);
+ }
+
+ return ret;
+}
+
+int main(int argc, char *argv[])
+{
+ My_Cache *my_cache;
+ const Eina_List *l_acc;
+ My_Account *acc;
+ int ret = 0;
+
+ if (argc < 3)
+ {
+ fprintf(stderr,
+ "Usage:\n\t%s <input> <output> [action] [action-params]\n\n"
+ "Where actions and their parameters:\n"
+ "\tacc <name>\n"
+ "\tpost <account-name> <message>\n"
+ "\tmessage <account-name> <message>\n"
+ "\n",
+ argv[0]);
+ return -1;
+ }
+
+ eina_init();
+ eet_init();
+ _my_cache_descriptor_init();
+
+ my_cache = _my_cache_load(argv[1]);
+ if (!my_cache)
+ {
+ printf("creating new cache.\n");
+ my_cache = _my_cache_new();
+ if (!my_cache)
+ {
+ ret = -2;
+ goto end;
+ }
+ }
+
+ if (argc > 3)
+ {
+ if (strcmp(argv[3], "acc") == 0)
+ {
+ if (argc == 5)
+ {
+ My_Account *acc = _my_cache_account_find(my_cache, argv[4]);
+ if (!acc)
+ {
+ acc = _my_account_new(argv[4]);
+ my_cache->accounts = eina_list_append
+ (my_cache->accounts, acc);
+ }
+ else
+ fprintf(stderr, "ERROR: account '%s' already exists.\n",
+ argv[4]);
+ }
+ else
+ fprintf(stderr, "ERROR: wrong number of parameters (%d).\n",
+ argc);
+ }
+ else if (strcmp(argv[3], "post") == 0)
+ {
+ if (argc == 6)
+ {
+ My_Account *acc = _my_cache_account_find(my_cache, argv[4]);
+ if (acc)
+ {
+ My_Post *post = _my_post_new(argv[5]);
+ acc->posts = eina_list_append(acc->posts, post);
+ }
+ else
+ fprintf(stderr, "ERROR: unknown account: '%s'\n", argv[4]);
+ }
+ else
+ fprintf(stderr, "ERROR: wrong number of parameters (%d).\n",
+ argc);
+ }
+ else if (strcmp(argv[3], "message") == 0)
+ {
+ if (argc == 6)
+ {
+ My_Account *acc = _my_cache_account_find(my_cache, argv[4]);
+ if (acc)
+ {
+ My_Message *msg = _my_message_new(argv[5]);
+ acc->messages = eina_list_append(acc->messages, msg);
+ }
+ else
+ fprintf(stderr, "ERROR: unknown account: '%s'\n", argv[4]);
+ }
+ else
+ fprintf(stderr, "ERROR: wrong number of parameters (%d).\n",
+ argc);
+ }
+ else
+ fprintf(stderr, "ERROR: unknown action '%s'\n", argv[2]);
+ }
+
+ printf("My_Cache:\n"
+ "\tversion.: %#x\n"
+ "\taccounts: %u\n",
+ my_cache->version,
+ eina_list_count(my_cache->accounts));
+ EINA_LIST_FOREACH(my_cache->accounts, l_acc, acc)
+ {
+ const My_Post *post;
+
+ printf("\t > %-#8x '%.20s' stats: m=%u, p=%u\n",
+ acc->id, acc->name ? acc->name : "",
+ eina_list_count(acc->messages),
+ eina_list_count(acc->posts));
+
+ if (eina_list_count(acc->messages))
+ {
+ const Eina_List *l;
+ const My_Message *msg;
+ printf("\t |messages:\n");
+
+ EINA_LIST_FOREACH(acc->messages, l, msg)
+ {
+ printf("\t | %-8x '%s' [%s]: '%.20s'\n",
+ msg->id,
+ msg->name ? msg->name : "",
+ msg->screen_name ? msg->screen_name : "",
+ msg->message ? msg->message : "");
+ }
+ }
+
+ if (eina_list_count(acc->posts))
+ {
+ const Eina_List *l;
+ const My_Post *post;
+ printf("\t |posts:\n");
+
+ EINA_LIST_FOREACH(acc->posts, l, post)
+ {
+ if (post->dm_to)
+ printf("\t | @%s: '%.20s'\n", post->dm_to, post->message);
+ else
+ printf("\t | '%.20s'\n", post->message);
+ }
+ }
+ printf("\n");
+ }
+
+ if (!_my_cache_save(my_cache, argv[2]))
+ ret = -3;
+
+ _my_cache_free(my_cache);
+
+ end:
+ _my_cache_descriptor_shutdown();
+ eet_shutdown();
+ eina_shutdown();
+
+ return ret;
+}
--- /dev/null
+#include <Eina.h>
+#include <Eet.h>
+#include <stdio.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+// The struct that will be loaded and saved.
+// note that only the members described in the eet_data_descriptor
+// will be automatically handled. The other members will have their
+// space reserved and zeroed (as it uses calloc()), but not
+// saved or loaded from eet files.
+typedef struct {
+ unsigned int version; // it is recommended to use versioned configuration!
+ const char *name;
+ int id;
+ int not_saved_value; // example of not saved data inside!
+ Eina_Bool enabled;
+ Eina_List *subs;
+} My_Conf_Type;
+
+typedef struct {
+ const char *server;
+ int port;
+} My_Conf_Subtype;
+
+// string that represents the entry in eet file, you might like to have
+// different profiles or so in the same file, this is possible with
+// different strings
+static const char MY_CONF_FILE_ENTRY[] = "config";
+
+
+// keep the descriptor static global, so it can be
+// shared by different functions (load/save) of this and only this
+// file.
+static Eet_Data_Descriptor *_my_conf_descriptor;
+static Eet_Data_Descriptor *_my_conf_sub_descriptor;
+
+static void
+_my_conf_descriptor_init(void)
+{
+ Eet_Data_Descriptor_Class eddc;
+
+ // The class describe the functions to use to create the type and its
+ // full allocated size.
+ //
+ // Eina types are very convenient, so use them to create the descriptor,
+ // so we get eina_list, eina_hash and eina_stringshare automatically!
+ //
+ // The STREAM variant is better for configuration files as the values
+ // will likely change a lot.
+ //
+ // The other variant, FILE, is good for caches and things that are just
+ // appended, but needs to take care when changing strings and files must
+ // be kept open so mmap()ed strings will be kept alive.
+ EET_EINA_STREAM_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Conf_Type);
+ _my_conf_descriptor = eet_data_descriptor_stream_new(&eddc);
+
+ EET_EINA_STREAM_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Conf_Subtype);
+ _my_conf_sub_descriptor = eet_data_descriptor_stream_new(&eddc);
+
+ // Describe the members to be saved:
+ // Use a temporary macro so we don't type a lot, also avoid errors:
+#define MY_CONF_ADD_BASIC(member, eet_type) \
+ EET_DATA_DESCRIPTOR_ADD_BASIC \
+ (_my_conf_descriptor, My_Conf_Type, #member, member, eet_type)
+#define MY_CONF_SUB_ADD_BASIC(member, eet_type) \
+ EET_DATA_DESCRIPTOR_ADD_BASIC \
+ (_my_conf_sub_descriptor, My_Conf_Subtype, #member, member, eet_type)
+
+ MY_CONF_SUB_ADD_BASIC(server, EET_T_STRING);
+ MY_CONF_SUB_ADD_BASIC(port, EET_T_INT);
+
+ MY_CONF_ADD_BASIC(version, EET_T_UINT);
+ MY_CONF_ADD_BASIC(name, EET_T_STRING);
+ MY_CONF_ADD_BASIC(id, EET_T_INT);
+ MY_CONF_ADD_BASIC(enabled, EET_T_UCHAR);
+
+ // And add the sub descriptor as a linked list at 'subs' in the main struct
+ EET_DATA_DESCRIPTOR_ADD_LIST
+ (_my_conf_descriptor, My_Conf_Type, "subs", subs, _my_conf_sub_descriptor);
+
+#undef MY_CONF_ADD_BASIC
+#undef MY_CONF_SUB_ADD_BASIC
+}
+
+static void
+_my_conf_descriptor_shutdown(void)
+{
+ eet_data_descriptor_free(_my_conf_sub_descriptor);
+ eet_data_descriptor_free(_my_conf_descriptor);
+}
+
+static My_Conf_Type *
+_my_conf_new(void)
+{
+ My_Conf_Type *my_conf = calloc(1, sizeof(My_Conf_Type));
+ My_Conf_Subtype *sub;
+ if (!my_conf)
+ {
+ fprintf(stderr, "ERROR: could not calloc My_Conf_Type\n");
+ return NULL;
+ }
+
+ my_conf->version = 0x112233;
+ my_conf->enabled = EINA_TRUE;
+
+ sub = calloc(1, sizeof(My_Conf_Subtype));
+ if (sub)
+ {
+ sub->server = eina_stringshare_add("my-server.com");
+ sub->port = 1234;
+ my_conf->subs = eina_list_append(my_conf->subs, sub);
+ }
+
+ return my_conf;
+}
+
+static void
+_my_conf_free(My_Conf_Type *my_conf)
+{
+ My_Conf_Subtype *sub;
+ EINA_LIST_FREE(my_conf->subs, sub)
+ {
+ eina_stringshare_del(sub->server);
+ free(sub);
+ }
+
+ eina_stringshare_del(my_conf->name);
+ free(my_conf);
+}
+
+static My_Conf_Type *
+_my_conf_load(const char *filename)
+{
+ My_Conf_Type *my_conf;
+ Eet_File *ef = eet_open(filename, EET_FILE_MODE_READ);
+ if (!ef)
+ {
+ fprintf(stderr, "ERROR: could not open '%s' for read\n", filename);
+ return NULL;
+ }
+
+ my_conf = eet_data_read(ef, _my_conf_descriptor, MY_CONF_FILE_ENTRY);
+ if (!my_conf)
+ goto end;
+
+ if (my_conf->version < 0x112233)
+ {
+ fprintf(stderr,
+ "WARNING: version %#x was too old, upgrading it to %#x\n",
+ my_conf->version, 0x112233);
+
+ my_conf->version = 0x112233;
+ my_conf->enabled = EINA_TRUE;
+ }
+
+ end:
+ eet_close(ef);
+ return my_conf;
+}
+
+static Eina_Bool
+_my_conf_save(const My_Conf_Type *my_conf, const char *filename)
+{
+ char tmp[PATH_MAX];
+ Eet_File *ef;
+ Eina_Bool ret;
+ unsigned int i, len;
+ struct stat st;
+
+ len = eina_strlcpy(tmp, filename, sizeof(tmp));
+ if (len + 12 >= (int)sizeof(tmp))
+ {
+ fprintf(stderr, "ERROR: file name is too big: %s\n", filename);
+ return EINA_FALSE;
+ }
+
+ i = 0;
+ do
+ {
+ snprintf(tmp + len, 12, ".%u", i);
+ i++;
+ }
+ while (stat(tmp, &st) == 0);
+
+ ef = eet_open(tmp, EET_FILE_MODE_WRITE);
+ if (!ef)
+ {
+ fprintf(stderr, "ERROR: could not open '%s' for write\n", tmp);
+ return EINA_FALSE;
+ }
+
+ ret = eet_data_write
+ (ef, _my_conf_descriptor, MY_CONF_FILE_ENTRY, my_conf, EINA_TRUE);
+ eet_close(ef);
+
+ if (ret)
+ {
+ unlink(filename);
+ rename(tmp, filename);
+ }
+
+ return ret;
+}
+
+int main(int argc, char *argv[])
+{
+ My_Conf_Type *my_conf;
+ const My_Conf_Subtype *sub;
+ const Eina_List *l;
+ int ret = 0;
+
+ if (argc != 3)
+ {
+ fprintf(stderr, "Usage:\n\t%s <input> <output>\n\n", argv[0]);
+ return -1;
+ }
+
+ eina_init();
+ eet_init();
+ _my_conf_descriptor_init();
+
+ my_conf = _my_conf_load(argv[1]);
+ if (!my_conf)
+ {
+ printf("creating new configuration.\n");
+ my_conf = _my_conf_new();
+ if (!my_conf)
+ {
+ ret = -2;
+ goto end;
+ }
+ }
+
+ printf("My_Conf_Type:\n"
+ "\tversion: %#x\n"
+ "\tname...: '%s'\n"
+ "\tid.....: %d\n"
+ "\tenabled: %hhu\n"
+ "\tsubs...:\n",
+ my_conf->version,
+ my_conf->name ? my_conf->name : "",
+ my_conf->id,
+ my_conf->enabled);
+
+ EINA_LIST_FOREACH(my_conf->subs, l, sub)
+ printf("\t\tserver: '%s', port: %d\n",
+ sub->server ? sub->server : "",
+ sub->port);
+
+ if (!_my_conf_save(my_conf, argv[2]))
+ ret = -3;
+
+ _my_conf_free(my_conf);
+
+ end:
+ _my_conf_descriptor_shutdown();
+ eet_shutdown();
+ eina_shutdown();
+
+ return ret;
+}
--- /dev/null
+#include <Eina.h>
+#include <Eet.h>
+#include <stdio.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+// The struct that will be loaded and saved.
+// note that only the members described in the eet_data_descriptor
+// will be automatically handled. The other members will have their
+// space reserved and zeroed (as it uses calloc()), but not
+// saved or loaded from eet files.
+typedef struct {
+ unsigned int version; // it is recommended to use versioned configuration!
+ const char *name;
+ int id;
+ int not_saved_value; // example of not saved data inside!
+ Eina_Bool enabled;
+} My_Conf_Type;
+
+// string that represents the entry in eet file, you might like to have
+// different profiles or so in the same file, this is possible with
+// different strings
+static const char MY_CONF_FILE_ENTRY[] = "config";
+
+
+// keep the descriptor static global, so it can be
+// shared by different functions (load/save) of this and only this
+// file.
+static Eet_Data_Descriptor *_my_conf_descriptor;
+
+static void
+_my_conf_descriptor_init(void)
+{
+ Eet_Data_Descriptor_Class eddc;
+
+ // The class describe the functions to use to create the type and its
+ // full allocated size.
+ //
+ // Eina types are very convenient, so use them to create the descriptor,
+ // so we get eina_list, eina_hash and eina_stringshare automatically!
+ //
+ // The STREAM variant is better for configuration files as the values
+ // will likely change a lot.
+ //
+ // The other variant, FILE, is good for caches and things that are just
+ // appended, but needs to take care when changing strings and files must
+ // be kept open so mmap()ed strings will be kept alive.
+ EET_EINA_STREAM_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Conf_Type);
+ _my_conf_descriptor = eet_data_descriptor_stream_new(&eddc);
+
+ // Describe the members to be saved:
+ // Use a temporary macro so we don't type a lot, also avoid errors:
+#define MY_CONF_ADD_BASIC(member, eet_type) \
+ EET_DATA_DESCRIPTOR_ADD_BASIC \
+ (_my_conf_descriptor, My_Conf_Type, #member, member, eet_type)
+
+ MY_CONF_ADD_BASIC(version, EET_T_UINT);
+ MY_CONF_ADD_BASIC(name, EET_T_STRING);
+ MY_CONF_ADD_BASIC(id, EET_T_INT);
+ MY_CONF_ADD_BASIC(enabled, EET_T_UCHAR);
+
+#undef MY_CONF_ADD_BASIC
+}
+
+static void
+_my_conf_descriptor_shutdown(void)
+{
+ eet_data_descriptor_free(_my_conf_descriptor);
+}
+
+static My_Conf_Type *
+_my_conf_new(void)
+{
+ My_Conf_Type *my_conf = calloc(1, sizeof(My_Conf_Type));
+ if (!my_conf)
+ {
+ fprintf(stderr, "ERROR: could not calloc My_Conf_Type\n");
+ return NULL;
+ }
+
+ my_conf->version = 0x112233;
+ my_conf->enabled = EINA_TRUE;
+ return my_conf;
+}
+
+static void
+_my_conf_free(My_Conf_Type *my_conf)
+{
+ eina_stringshare_del(my_conf->name);
+ free(my_conf);
+}
+
+static My_Conf_Type *
+_my_conf_load(const char *filename)
+{
+ My_Conf_Type *my_conf;
+ Eet_File *ef = eet_open(filename, EET_FILE_MODE_READ);
+ if (!ef)
+ {
+ fprintf(stderr, "ERROR: could not open '%s' for read\n", filename);
+ return NULL;
+ }
+
+ my_conf = eet_data_read(ef, _my_conf_descriptor, MY_CONF_FILE_ENTRY);
+ if (!my_conf)
+ goto end;
+
+ if (my_conf->version < 0x112233)
+ {
+ fprintf(stderr,
+ "WARNING: version %#x was too old, upgrading it to %#x\n",
+ my_conf->version, 0x112233);
+
+ my_conf->version = 0x112233;
+ my_conf->enabled = EINA_TRUE;
+ }
+
+ end:
+ eet_close(ef);
+ return my_conf;
+}
+
+static Eina_Bool
+_my_conf_save(const My_Conf_Type *my_conf, const char *filename)
+{
+ char tmp[PATH_MAX];
+ Eet_File *ef;
+ Eina_Bool ret;
+ unsigned int i, len;
+ struct stat st;
+
+ len = eina_strlcpy(tmp, filename, sizeof(tmp));
+ if (len + 12 >= (int)sizeof(tmp))
+ {
+ fprintf(stderr, "ERROR: file name is too big: %s\n", filename);
+ return EINA_FALSE;
+ }
+
+ i = 0;
+ do
+ {
+ snprintf(tmp + len, 12, ".%u", i);
+ i++;
+ }
+ while (stat(tmp, &st) == 0);
+
+ ef = eet_open(tmp, EET_FILE_MODE_WRITE);
+ if (!ef)
+ {
+ fprintf(stderr, "ERROR: could not open '%s' for write\n", tmp);
+ return EINA_FALSE;
+ }
+
+ ret = eet_data_write
+ (ef, _my_conf_descriptor, MY_CONF_FILE_ENTRY, my_conf, EINA_TRUE);
+ eet_close(ef);
+
+ if (ret)
+ {
+ unlink(filename);
+ rename(tmp, filename);
+ }
+
+ return ret;
+}
+
+int main(int argc, char *argv[])
+{
+ My_Conf_Type *my_conf;
+ int ret = 0;
+
+ if (argc != 3)
+ {
+ fprintf(stderr, "Usage:\n\t%s <input> <output>\n\n", argv[0]);
+ return -1;
+ }
+
+ eina_init();
+ eet_init();
+ _my_conf_descriptor_init();
+
+ my_conf = _my_conf_load(argv[1]);
+ if (!my_conf)
+ {
+ printf("creating new configuration.\n");
+ my_conf = _my_conf_new();
+ if (!my_conf)
+ {
+ ret = -2;
+ goto end;
+ }
+ }
+
+ printf("My_Conf_Type:\n"
+ "\tversion: %#x\n"
+ "\tname...: '%s'\n"
+ "\tid.....: %d\n"
+ "\tenabled: %hhu\n",
+ my_conf->version,
+ my_conf->name ? my_conf->name : "",
+ my_conf->id,
+ my_conf->enabled);
+
+ if (!_my_conf_save(my_conf, argv[2]))
+ ret = -3;
+
+ _my_conf_free(my_conf);
+
+ end:
+ _my_conf_descriptor_shutdown();
+ eet_shutdown();
+ eina_shutdown();
+
+ return ret;
+}
projects / profile / ivi / eet.git / commitdiff