forked from enlightenment/efl
Add eet examples documentation and update html doc menu to add 'Examples' tab.
Gustavo: documentation of examples should be added in examples.dox. There is one page for each example in that file. SVN revision: 47328
This commit is contained in:
parent
ea4e8a0abb
commit
bb2462c3ab
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@ -151,6 +151,34 @@ AC_ARG_ENABLE([assert],
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[prefer_assert=$enableval]
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)
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# Examples
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AC_ARG_ENABLE([install-examples],
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[AC_HELP_STRING([--disable-install-examples],
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[disable installing examples (compiled or just source). @<:@default==enabled@:>@])],
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[
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if test "x${enableval}" = "xyes" ; then
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install_examples="yes"
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else
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install_examples="no"
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fi
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],
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[install_examples="yes"])
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AM_CONDITIONAL([INSTALL_EXAMPLES], [test "x${install_examples}" = "xyes"])
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AC_ARG_ENABLE([build-examples],
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[AC_HELP_STRING([--enable-build-examples],
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[enable building examples. @<:@default==disabled@:>@])],
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[
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if test "x${enableval}" = "xyes" ; then
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build_examples="yes"
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else
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build_examples="no"
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fi
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],
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[build_examples="no"])
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AM_CONDITIONAL([BUILD_EXAMPLES], [test "x${build_examples}" = "xyes"])
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# Unit tests, coverage and benchmarking
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EFL_CHECK_TESTS([enable_tests="yes"], [enable_tests="no"])
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@ -395,6 +423,7 @@ src/Makefile
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src/lib/Makefile
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src/bin/Makefile
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src/tests/Makefile
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src/examples/Makefile
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README
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eet.spec
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])
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@ -427,6 +456,13 @@ echo
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echo " Build eet............: $have_eet"
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echo
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echo " Documentation........: ${build_doc}"
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if test "x${build_doc}" = "xyes" ; then
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echo " Building...........: make doc"
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fi
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echo " Examples.............: ${build_examples}"
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if test "x${build_examples}" = "xyes" ; then
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echo " Install............: ${install_examples}"
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fi
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echo
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echo "Compilation............: make (or gmake)"
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echo " CPPFLAGS.............: $CPPFLAGS"
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@ -1,7 +1,7 @@
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PROJECT_NAME = Eet
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PROJECT_NUMBER =
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OUTPUT_DIRECTORY = .
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INPUT = eet.dox ../src/lib
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INPUT = eet.dox examples.dox ../src/lib
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IMAGE_PATH = img
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OUTPUT_LANGUAGE = English
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GENERATE_HTML = YES
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@ -67,7 +67,7 @@ RECURSIVE = NO
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EXCLUDE =
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EXCLUDE_SYMLINKS = NO
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EXCLUDE_PATTERNS =
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EXAMPLE_PATH =
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EXAMPLE_PATH = ../src/examples/
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EXAMPLE_PATTERNS =
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EXAMPLE_RECURSIVE = NO
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INPUT_FILTER =
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@ -0,0 +1,34 @@
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/**
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* @page Examples Examples
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*
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* Here is a page with examples.
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*
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* @ref Example_Eet_Data_Simple
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*
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* @ref Example_Eet_Data_Nested
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*
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* @ref Example_Eet_Data_File_Descriptor
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*
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* <a href="examples.html">List of examples</a>
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*/
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/**
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* @page Example_Eet_Data_Simple Simple data example
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*
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* @includelineno eet-data-simple.c
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* @example eet-data-simple.c
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*/
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/**
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* @page Example_Eet_Data_Nested Nested data example
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*
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* @includelineno eet-data-nested.c
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* @example eet-data-nested.c
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*/
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/**
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* @page Example_Eet_Data_File_Descriptor File descriptor data example
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*
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* @includelineno eet-data-file_descriptor.c
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* @example eet-data-file_descriptor.c
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*/
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@ -46,7 +46,7 @@
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<div class="menu-container">
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<div class="submenu">
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<ul class="current">
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<li><a href="todo.html">Todo</a></li>
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<li><a href="Examples.html">Examples</a></li>
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<li><a href="files.html">Files</a></li>
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<li><a href="modules.html">Modules</a></li>
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<li><a href="globals.html">Globals</a></li>
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@ -1,3 +1,9 @@
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MAINTAINERCLEANFILES = Makefile.in
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SUBDIRS = lib bin tests
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if BUILD_EXAMPLES
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SUBDIRS += examples
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endif
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@ -0,0 +1,32 @@
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MAINTAINERCLEANFILES = Makefile.in
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pkglibdir = $(datadir)/$(PACKAGE)/examples
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AM_CPPFLAGS = \
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-I. \
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-I$(top_srcdir)/src/lib \
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@EINA_CFLAGS@
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pkglib_PROGRAMS = eet_data_simple eet_data_nested eet_data_file_descriptor
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eet_data_simple_SOURCES = eet-data-simple.c
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eet_data_simple_LDADD = $(top_builddir)/src/lib/libeet.la @EINA_LIBS@
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eet_data_nested_SOURCES = eet-data-nested.c
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eet_data_nested_LDADD = $(top_builddir)/src/lib/libeet.la @EINA_LIBS@
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eet_data_file_descriptor_SOURCES = eet-data-file_descriptor.c
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eet_data_file_descriptor_LDADD = $(top_builddir)/src/lib/libeet.la @EINA_LIBS@
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filesdir = $(datadir)/$(PACKAGE)/examples
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files_DATA =
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if INSTALL_EXAMPLES
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files_DATA += \
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eet-data-simple.c \
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eet-data-nested.c \
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eet-data-file_descriptor.c
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endif
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@ -0,0 +1,490 @@
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#include <Eina.h>
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#include <Eet.h>
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#include <stdio.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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// complex real-world structures based on elmdentica database
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typedef struct {
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const char *screen_name;
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const char *name;
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const char *message;
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unsigned int id;
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unsigned int status_id;
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unsigned int date;
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unsigned int timeline;
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} My_Message;
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typedef struct {
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const char *dm_to;
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const char *message;
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} My_Post;
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typedef struct {
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unsigned int id;
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const char *name;
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Eina_List *messages;
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Eina_List *posts;
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} My_Account;
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typedef struct {
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unsigned int version; // it is recommended to use versioned configuration!
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Eina_List *accounts;
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} My_Cache;
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// string that represents the entry in eet file, you might like to have
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// different profiles or so in the same file, this is possible with
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// different strings
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static const char MY_CACHE_FILE_ENTRY[] = "cache";
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// keep the descriptor static global, so it can be
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// shared by different functions (load/save) of this and only this
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// file.
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static Eet_Data_Descriptor *_my_cache_descriptor;
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static Eet_Data_Descriptor *_my_account_descriptor;
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static Eet_Data_Descriptor *_my_message_descriptor;
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static Eet_Data_Descriptor *_my_post_descriptor;
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// keep file handle alive, so mmap()ed strings are all alive as well
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static Eet_File *_my_cache_file = NULL;
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static Eet_Dictionary *_my_cache_dict = NULL;
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static void
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_my_cache_descriptor_init(void)
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{
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Eet_Data_Descriptor_Class eddc;
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// The FILE variant is good for caches and things that are just
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// appended, but needs to take care when changing strings and files must
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// be kept open so mmap()ed strings will be kept alive.
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EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Cache);
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_my_cache_descriptor = eet_data_descriptor_file_new(&eddc);
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EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Account);
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_my_account_descriptor = eet_data_descriptor_file_new(&eddc);
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EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Message);
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_my_message_descriptor = eet_data_descriptor_file_new(&eddc);
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EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, My_Post);
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_my_post_descriptor = eet_data_descriptor_file_new(&eddc);
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// Describe the members to be saved:
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// Use a temporary macro so we don't type a lot, also avoid errors:
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#define ADD_BASIC(member, eet_type) \
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EET_DATA_DESCRIPTOR_ADD_BASIC \
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(_my_message_descriptor, My_Message, #member, member, eet_type)
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ADD_BASIC(screen_name, EET_T_STRING);
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ADD_BASIC(name, EET_T_STRING);
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ADD_BASIC(message, EET_T_STRING);
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ADD_BASIC(id, EET_T_UINT);
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ADD_BASIC(status_id, EET_T_UINT);
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ADD_BASIC(date, EET_T_UINT);
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ADD_BASIC(timeline, EET_T_UINT);
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#undef ADD_BASIC
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#define ADD_BASIC(member, eet_type) \
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EET_DATA_DESCRIPTOR_ADD_BASIC \
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(_my_post_descriptor, My_Post, #member, member, eet_type)
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ADD_BASIC(dm_to, EET_T_STRING);
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ADD_BASIC(message, EET_T_STRING);
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#undef ADD_BASIC
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#define ADD_BASIC(member, eet_type) \
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EET_DATA_DESCRIPTOR_ADD_BASIC \
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(_my_account_descriptor, My_Account, #member, member, eet_type)
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ADD_BASIC(name, EET_T_STRING);
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ADD_BASIC(id, EET_T_UINT);
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#undef ADD_BASIC
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EET_DATA_DESCRIPTOR_ADD_LIST
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(_my_account_descriptor, My_Account, "messages", messages,
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_my_message_descriptor);
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EET_DATA_DESCRIPTOR_ADD_LIST
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(_my_account_descriptor, My_Account, "posts", posts,
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_my_post_descriptor);
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#define ADD_BASIC(member, eet_type) \
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EET_DATA_DESCRIPTOR_ADD_BASIC \
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(_my_cache_descriptor, My_Cache, #member, member, eet_type)
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ADD_BASIC(version, EET_T_UINT);
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#undef ADD_BASIC
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EET_DATA_DESCRIPTOR_ADD_LIST
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(_my_cache_descriptor, My_Cache, "accounts", accounts,
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_my_account_descriptor);
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}
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static void
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_my_cache_descriptor_shutdown(void)
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{
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eet_data_descriptor_free(_my_cache_descriptor);
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eet_data_descriptor_free(_my_account_descriptor);
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eet_data_descriptor_free(_my_message_descriptor);
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eet_data_descriptor_free(_my_post_descriptor);
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}
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// need to check if the pointer came from mmaped area in eet_dictionary
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// or it was allocated with eina_stringshare_add()
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static void
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_eet_string_free(const char *str)
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{
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if (!str)
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return;
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if ((_my_cache_dict) && (eet_dictionary_string_check(_my_cache_dict, str)))
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return;
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eina_stringshare_del(str);
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}
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static My_Message *
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_my_message_new(const char *message)
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{
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My_Message *msg = calloc(1, sizeof(My_Message));
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if (!msg)
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{
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fprintf(stderr, "ERROR: could not calloc My_Message\n");
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return NULL;
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}
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msg->message = eina_stringshare_add(message);
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return msg;
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}
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static void
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_my_message_free(My_Message *msg)
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{
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_eet_string_free(msg->screen_name);
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_eet_string_free(msg->name);
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_eet_string_free(msg->message);
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free(msg);
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}
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static My_Post *
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_my_post_new(const char *message)
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{
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My_Post *post = calloc(1, sizeof(My_Post));
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if (!post)
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{
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fprintf(stderr, "ERROR: could not calloc My_Post\n");
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return NULL;
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}
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post->message = eina_stringshare_add(message);
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return post;
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}
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static void
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_my_post_free(My_Post *post)
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{
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_eet_string_free(post->dm_to);
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_eet_string_free(post->message);
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free(post);
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}
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static My_Account *
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_my_account_new(const char *name)
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{
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My_Account *acc = calloc(1, sizeof(My_Account));
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if (!acc)
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{
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fprintf(stderr, "ERROR: could not calloc My_Account\n");
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return NULL;
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}
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acc->name = eina_stringshare_add(name);
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return acc;
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}
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static void
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_my_account_free(My_Account *acc)
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{
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My_Message *m;
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My_Post *p;
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_eet_string_free(acc->name);
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EINA_LIST_FREE(acc->messages, m)
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_my_message_free(m);
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EINA_LIST_FREE(acc->posts, p)
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_my_post_free(p);
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free(acc);
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}
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static My_Cache *
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_my_cache_new(void)
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{
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My_Cache *my_cache = calloc(1, sizeof(My_Cache));
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if (!my_cache)
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{
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fprintf(stderr, "ERROR: could not calloc My_Cache\n");
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return NULL;
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}
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my_cache->version = 1;
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return my_cache;
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}
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static void
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_my_cache_free(My_Cache *my_cache)
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{
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My_Account *acc;
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EINA_LIST_FREE(my_cache->accounts, acc)
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_my_account_free(acc);
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free(my_cache);
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}
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static My_Account *
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_my_cache_account_find(My_Cache *my_cache, const char *name)
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{
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My_Account *acc;
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Eina_List *l;
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EINA_LIST_FOREACH(my_cache->accounts, l, acc)
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if (strcmp(acc->name, name) == 0)
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return acc;
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return NULL;
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}
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static My_Cache *
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_my_cache_load(const char *filename)
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{
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My_Cache *my_cache;
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Eet_File *ef = eet_open(filename, EET_FILE_MODE_READ);
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if (!ef)
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{
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fprintf(stderr, "ERROR: could not open '%s' for read\n", filename);
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return NULL;
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}
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my_cache = eet_data_read(ef, _my_cache_descriptor, MY_CACHE_FILE_ENTRY);
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if (!my_cache)
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{
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eet_close(ef);
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return NULL;
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}
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if (my_cache->version < 1)
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{
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fprintf(stderr,
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"WARNING: version %#x was too old, upgrading it to %#x\n",
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my_cache->version, 1);
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my_cache->version = 1;
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}
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if (_my_cache_file)
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eet_close(_my_cache_file);
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_my_cache_file = ef;
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_my_cache_dict = eet_dictionary_get(ef);
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return my_cache;
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}
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static Eina_Bool
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_my_cache_save(const My_Cache *my_cache, const char *filename)
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{
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char tmp[PATH_MAX];
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Eet_File *ef;
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Eina_Bool ret;
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unsigned int i, len;
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struct stat st;
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len = eina_strlcpy(tmp, filename, sizeof(tmp));
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if (len + 12 >= (int)sizeof(tmp))
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{
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fprintf(stderr, "ERROR: file name is too big: %s\n", filename);
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return EINA_FALSE;
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}
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i = 0;
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do
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{
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snprintf(tmp + len, 12, ".%u", i);
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i++;
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}
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while (stat(tmp, &st) == 0);
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ef = eet_open(tmp, EET_FILE_MODE_WRITE);
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if (!ef)
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{
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fprintf(stderr, "ERROR: could not open '%s' for write\n", tmp);
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return EINA_FALSE;
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}
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ret = eet_data_write
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(ef, _my_cache_descriptor, MY_CACHE_FILE_ENTRY, my_cache, EINA_TRUE);
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// VERY IMPORTANT NOTE:
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// after eet_close(), all strings mmaped from file will be GONE, invalid!
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// you'll need to free the old cache and open the new one.
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// For cache this is okay, as you should be saving not so often or just
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// at end.
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//
|
||||
// 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;
|
||||
}
|
|
@ -0,0 +1,264 @@
|
|||
#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;
|
||||
}
|
|
@ -0,0 +1,217 @@
|
|||
#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;
|
||||
}
|
Loading…
Reference in New Issue