diff options
Diffstat (limited to 'src/examples/eet-data-file_descriptor_02.c')
| -rw-r--r-- | src/examples/eet-data-file_descriptor_02.c | 944 |
1 files changed, 0 insertions, 944 deletions
diff --git a/src/examples/eet-data-file_descriptor_02.c b/src/examples/eet-data-file_descriptor_02.c deleted file mode 100644 index 65ba79e..0000000 --- a/src/examples/eet-data-file_descriptor_02.c +++ /dev/null @@ -1,944 +0,0 @@ -/* - * build: gcc -o eet_data_file_descriptor_02 eet-data-file_descriptor_02.c `pkg-config --cflags --libs eet eina` - */ - -#include <Eina.h> -#include <Eet.h> -#include <stdio.h> -#include <limits.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <unistd.h> - -typedef enum _Example_Data_Type Example_Data_Type; -typedef struct _Example_Variant_Type Example_Variant_Type; -typedef struct _Example_Variant Example_Variant; -typedef struct _Example_Union Example_Union; -typedef struct _Example_Struct1 Example_Struct1; -typedef struct _Example_Struct2 Example_Struct2; -typedef struct _Example_Struct3 Example_Struct3; -typedef struct _Example_Lists Example_Lists; - -enum _Example_Data_Type -{ - EET_UNKNOWN = 0, - EET_STRUCT1, - EET_STRUCT2, - EET_STRUCT3 -}; - -struct -{ - Example_Data_Type u; - const char *name; -} eet_mapping[] = { - { EET_STRUCT1, "ST1" }, - { EET_STRUCT2, "ST2" }, - { EET_STRUCT3, "ST3" }, - { EET_UNKNOWN, NULL } -}; - -struct _Example_Struct1 -{ - double val1; - int stuff; - const char *s1; -}; - -struct _Example_Struct2 -{ - Eina_Bool b1; - unsigned long long v1; -}; - -struct _Example_Struct3 -{ - int body; -}; - -struct _Example_Union -{ - Example_Data_Type type; - - union { - Example_Struct1 st1; - Example_Struct2 st2; - Example_Struct3 st3; - } u; -}; - -struct _Example_Variant_Type -{ - const char *type; - Eina_Bool unknow : 1; -}; - -struct _Example_Variant -{ - Example_Variant_Type t; - - void *data; /* differently than the union type, we - * don't need to pre-allocate the memory - * for the field*/ -}; - -struct _Example_Lists -{ - Eina_List *union_list; - Eina_List *variant_list; -}; - -static void -_st1_set(Example_Struct1 *st1, - double v1, - int v2, - const char *v3) -{ - st1->val1 = v1; - st1->stuff = v2; - st1->s1 = v3; -} /* _st1_set */ - -static void -_st2_set(Example_Struct2 *st2, - Eina_Bool v1, - unsigned long long v2) -{ - st2->b1 = v1; - st2->v1 = v2; -} /* _st2_set */ - -static void -_st3_set(Example_Struct3 *st3, - int v1) -{ - st3->body = v1; -} /* _st3_set */ - -static const char * -/* union - type_get() */ -_union_type_get(const void *data, - Eina_Bool *unknow) -{ - const Example_Data_Type *u = data; - int i; - - if (unknow) - *unknow = EINA_FALSE; - - for (i = 0; eet_mapping[i].name != NULL; ++i) - if (*u == eet_mapping[i].u) - return eet_mapping[i].name; - - if (unknow) - *unknow = EINA_TRUE; - - return NULL; -} /* _union_type_get */ - -static Eina_Bool -_union_type_set(const char *type, - void *data, - Eina_Bool unknow) -{ - Example_Data_Type *u = data; - int i; - - if (unknow) - return EINA_FALSE; - - for (i = 0; eet_mapping[i].name != NULL; ++i) - if (strcmp(eet_mapping[i].name, type) == 0) - { - *u = eet_mapping[i].u; - return EINA_TRUE; - } - - return EINA_FALSE; -} /* _union_type_set */ - -static const char * -_variant_type_get(const void *data, - Eina_Bool *unknow) -{ - const Example_Variant_Type *type = data; - int i; - - if (unknow) - *unknow = type->unknow; - - for (i = 0; eet_mapping[i].name != NULL; ++i) - if (strcmp(type->type, eet_mapping[i].name) == 0) - return eet_mapping[i].name; - - if (unknow) - *unknow = EINA_FALSE; - - return type->type; -} /* _variant_type_get */ - -static Eina_Bool -_variant_type_set(const char *type, - void *data, - Eina_Bool unknow) -{ - Example_Variant_Type *vt = data; - - vt->type = type; - vt->unknow = unknow; - return EINA_TRUE; -} /* _variant_type_set */ - -static Eet_Data_Descriptor * -_st1_dd(void) -{ - Eet_Data_Descriptor_Class eddc; - Eet_Data_Descriptor *res; - - EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Example_Struct1); - res = eet_data_descriptor_file_new(&eddc); - EET_DATA_DESCRIPTOR_ADD_BASIC( - res, Example_Struct1, "val1", val1, EET_T_DOUBLE); - EET_DATA_DESCRIPTOR_ADD_BASIC( - res, Example_Struct1, "stuff", stuff, EET_T_INT); - EET_DATA_DESCRIPTOR_ADD_BASIC( - res, Example_Struct1, "s1", s1, EET_T_STRING); - - return res; -} /* _st1_dd */ - -static Eet_Data_Descriptor * -_st2_dd(void) -{ - Eet_Data_Descriptor_Class eddc; - Eet_Data_Descriptor *res; - - EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Example_Struct2); - res = eet_data_descriptor_file_new(&eddc); - EET_DATA_DESCRIPTOR_ADD_BASIC( - res, Example_Struct2, "b1", b1, EET_T_UCHAR); - EET_DATA_DESCRIPTOR_ADD_BASIC( - res, Example_Struct2, "v1", v1, EET_T_ULONG_LONG); - - return res; -} /* _st2_dd */ - -static Eet_Data_Descriptor * -_st3_dd(void) -{ - Eet_Data_Descriptor_Class eddc; - Eet_Data_Descriptor *res; - - EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Example_Struct3); - res = eet_data_descriptor_file_new(&eddc); - EET_DATA_DESCRIPTOR_ADD_BASIC( - res, Example_Struct3, "body", body, EET_T_INT); - - return res; -} /* _st3_dd */ - -/* string that represents the entry in the eet file. you might like to - * have different profiles or so in the same file, this is possible - * with different strings - */ -static const char 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 *_lists_descriptor; -static Eet_Data_Descriptor *_struct_1_descriptor; -static Eet_Data_Descriptor *_struct_2_descriptor; -static Eet_Data_Descriptor *_struct_3_descriptor; -static Eet_Data_Descriptor *_union_descriptor; -static Eet_Data_Descriptor *_variant_descriptor; -static Eet_Data_Descriptor *_union_unified_descriptor; -static Eet_Data_Descriptor *_variant_unified_descriptor; - -/* keep file handle alive, so mmap()ed strings are all alive as - * well */ -static Eet_File *_cache_file = NULL; -static Eet_Dictionary *_cache_dict = NULL; - -static void -/* declaring types */ -_data_descriptors_init(void) -{ - Eet_Data_Descriptor_Class eddc; - - EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Example_Lists); - _lists_descriptor = eet_data_descriptor_file_new(&eddc); - - _struct_1_descriptor = _st1_dd(); - _struct_2_descriptor = _st2_dd(); - _struct_3_descriptor = _st3_dd(); - - /* for union */ - EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Example_Union); - _union_descriptor = eet_data_descriptor_file_new(&eddc); - - eddc.version = EET_DATA_DESCRIPTOR_CLASS_VERSION; - eddc.func.type_get = _union_type_get; - eddc.func.type_set = _union_type_set; - _union_unified_descriptor = eet_data_descriptor_file_new(&eddc); - - EET_DATA_DESCRIPTOR_ADD_MAPPING( - _union_unified_descriptor, "ST1", _struct_1_descriptor); - EET_DATA_DESCRIPTOR_ADD_MAPPING( - _union_unified_descriptor, "ST2", _struct_2_descriptor); - EET_DATA_DESCRIPTOR_ADD_MAPPING( - _union_unified_descriptor, "ST3", _struct_3_descriptor); - - EET_DATA_DESCRIPTOR_ADD_UNION( - _union_descriptor, Example_Union, "u", u, type, - _union_unified_descriptor); - - EET_DATA_DESCRIPTOR_ADD_LIST( - _lists_descriptor, Example_Lists, "union_list", union_list, - _union_descriptor); - - /* for variant */ - EET_EINA_FILE_DATA_DESCRIPTOR_CLASS_SET(&eddc, Example_Variant); - _variant_descriptor = eet_data_descriptor_file_new(&eddc); - - eddc.version = EET_DATA_DESCRIPTOR_CLASS_VERSION; - eddc.func.type_get = _variant_type_get; - eddc.func.type_set = _variant_type_set; - _variant_unified_descriptor = eet_data_descriptor_stream_new(&eddc); - - EET_DATA_DESCRIPTOR_ADD_MAPPING( - _variant_unified_descriptor, "ST1", _struct_1_descriptor); - EET_DATA_DESCRIPTOR_ADD_MAPPING( - _variant_unified_descriptor, "ST2", _struct_2_descriptor); - EET_DATA_DESCRIPTOR_ADD_MAPPING( - _variant_unified_descriptor, "ST3", _struct_3_descriptor); - - EET_DATA_DESCRIPTOR_ADD_VARIANT( - _variant_descriptor, Example_Variant, "data", data, t, - _variant_unified_descriptor); - - EET_DATA_DESCRIPTOR_ADD_LIST( - _lists_descriptor, Example_Lists, "variant_list", variant_list, - _variant_descriptor); -} /* _data_descriptors_init */ - -static void -_data_descriptors_shutdown(void) -{ - eet_data_descriptor_free(_lists_descriptor); - eet_data_descriptor_free(_struct_1_descriptor); - eet_data_descriptor_free(_struct_2_descriptor); - eet_data_descriptor_free(_struct_3_descriptor); - eet_data_descriptor_free(_union_descriptor); - eet_data_descriptor_free(_variant_descriptor); - eet_data_descriptor_free(_union_unified_descriptor); - eet_data_descriptor_free(_variant_unified_descriptor); -} /* _data_descriptors_shutdown */ - -/* need to check if the pointer came from mmap()ed area in - * eet_dictionary or it was allocated with eina_stringshare_add() - */ -static void -_string_free(const char *str) -{ - if (!str) - return; - - if ((_cache_dict) && (eet_dictionary_string_check(_cache_dict, str))) - return; - - eina_stringshare_del(str); -} /* _string_free */ - -static Example_Union * -_union_1_new(const char *v1, - const char *v2, - const char *v3) -{ - Example_Union *un = calloc(1, sizeof(Example_Union)); - if (!un) - { - fprintf( - stderr, "ERROR: could not allocate an Example_Union struct.\n"); - return NULL; - } - - un->type = EET_STRUCT1; - _st1_set(&(un->u.st1), atof(v1), atoi(v2), eina_stringshare_add(v3)); - - return un; -} - -static Example_Union * -_union_2_new(const char *v1, - const char *v2) -{ - Example_Union *un = calloc(1, sizeof(Example_Union)); - if (!un) - { - fprintf( - stderr, "ERROR: could not allocate an Example_Union struct.\n"); - return NULL; - } - - un->type = EET_STRUCT2; - _st2_set(&(un->u.st2), atoi(v1), atoi(v2)); - - return un; -} - -static Example_Union * -_union_3_new(const char *v1) -{ - Example_Union *un = calloc(1, sizeof(Example_Union)); - if (!un) - { - fprintf( - stderr, "ERROR: could not allocate an Example_Union struct.\n"); - return NULL; - } - - un->type = EET_STRUCT3; - _st3_set(&(un->u.st3), atoi(v1)); - - return un; -} - -static Example_Variant * -_variant_1_new(const char *v1, - const char *v2, - const char *v3) -{ - Example_Struct1 *st1; - Example_Variant *va = calloc(1, sizeof(Example_Variant)); - if (!va) - { - fprintf( - stderr, "ERROR: could not allocate an Example_Variant struct.\n"); - return NULL; - } - - va = calloc(1, sizeof (Example_Variant)); - va->t.type = eet_mapping[0].name; - st1 = calloc(1, sizeof (Example_Struct1)); - _st1_set(st1, atof(v1), atoi(v2), eina_stringshare_add(v3)); - va->data = st1; - - return va; -} - -static Example_Variant * -_variant_2_new(const char *v1, - const char *v2) -{ - printf("varinant 2 new\n"); - - Example_Struct2 *st2; - Example_Variant *va = calloc(1, sizeof(Example_Variant)); - if (!va) - { - fprintf( - stderr, "ERROR: could not allocate an Example_Variant struct.\n"); - return NULL; - } - - va = calloc(1, sizeof (Example_Variant)); - - va->t.type = eet_mapping[1].name; - - printf("type gets %s\n", va->t.type); - - st2 = calloc(1, sizeof (Example_Struct2)); - _st2_set(st2, atoi(v1), atoi(v2)); - va->data = st2; - - return va; -} - -static Example_Variant * -_variant_3_new(const char *v1) -{ - Example_Struct3 *st3; - Example_Variant *va = calloc(1, sizeof(Example_Variant)); - if (!va) - { - fprintf( - stderr, "ERROR: could not allocate an Example_Variant struct.\n"); - return NULL; - } - - va = calloc(1, sizeof (Example_Variant)); - va->t.type = eet_mapping[2].name; - st3 = calloc(1, sizeof (Example_Struct3)); - _st3_set(st3, atoi(v1)); - va->data = st3; - - return va; -} - -static Example_Lists * -_data_new(void) -{ - Example_Lists *example_lists = calloc(1, sizeof(Example_Lists)); - if (!example_lists) - { - fprintf(stderr, "ERROR: could not allocate a Example_Lists struct.\n"); - return NULL; - } - - return example_lists; -} /* _data_new */ - -static void -_union_free(Example_Union *un) -{ - if (un->type == EET_STRUCT1) - { - Example_Struct1 *st1 = &(un->u.st1); - _string_free(st1->s1); - } - - free(un); -} - -static void -_variant_free(Example_Variant *va) -{ - if (!strcmp(va->t.type, eet_mapping[0].name)) - { - Example_Struct1 *st1 = va->data; - _string_free(st1->s1); - } - - free(va->data); - free(va); -} - -static void -_data_free(Example_Lists *cache) -{ - Example_Union *un; - Example_Variant *va; - - EINA_LIST_FREE(cache->union_list, un) - _union_free(un); - - EINA_LIST_FREE(cache->variant_list, va) - _variant_free(va); - - free(cache); -} /* _data_free */ - -static Example_Lists * -_data_load(const char *filename) -{ - Example_Lists *data; - 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; - } - - data = eet_data_read(ef, _lists_descriptor, CACHE_FILE_ENTRY); - if (!data) - { - eet_close(ef); - return NULL; - } - - if (_cache_file) - eet_close(_cache_file); - - _cache_file = ef; - _cache_dict = eet_dictionary_get(ef); - - return data; -} /* _data_load */ - -static Eina_Bool -_data_save(const Example_Lists *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, _lists_descriptor, CACHE_FILE_ENTRY, cache, EINA_TRUE); - - eet_close(ef); - - if (ret) - { - unlink(filename); - rename(tmp, filename); - } - - return ret; -} /* _data_save */ - -static void -_print_union(const Example_Union *un) -{ - printf("\t | type: %s'\n", eet_mapping[un->type - 1].name); - - switch (un->type) - { - case EET_STRUCT1: - printf("\t\t val1: %f\n", un->u.st1.val1); - printf("\t\t stuff: %d\n", un->u.st1.stuff); - printf("\t\t s1: %s\n", un->u.st1.s1); - break; - - case EET_STRUCT2: - printf("\t\t val1: %i\n", un->u.st2.b1); - printf("\t\t stuff: %lli\n", un->u.st2.v1); - break; - - case EET_STRUCT3: - printf("\t\t val1: %i\n", un->u.st3.body); - break; - - default: - return; - } -} - -static void -_print_variant(const Example_Variant *va) -{ - printf("\t | type: %s'\n", va->t.type); - - switch (va->t.type[2]) - { - case '1': - { - Example_Struct1 *st1 = va->data; - - printf("\t\t val1: %f\n", st1->val1); - printf("\t\t stuff: %d\n", st1->stuff); - printf("\t\t s1: %s\n", st1->s1); - } - break; - - case '2': - { - Example_Struct2 *st2 = va->data; - - printf("\t\t val1: %i\n", st2->b1); - printf("\t\t stuff: %lli\n", st2->v1); - } - break; - - case '3': - { - Example_Struct3 *st3 = va->data; - - printf("\t\t val1: %i\n", st3->body); - } - break; - - default: - return; - } -} - -int -main(int argc, - char *argv[]) -{ - Example_Lists *data_lists; - int ret = 0; - - if (argc < 3) - { - fprintf(stderr, - "Usage:\n\t%s <input> <output> [action action-params]\n\n" - "where actions and their parameters are:\n" - "\tunion <type> [fields]\n" - "\tvariant <type> [fields]\n" - "\n", - argv[0]); - return -1; - } - - eina_init(); - eet_init(); - _data_descriptors_init(); - - data_lists = _data_load(argv[1]); - if (!data_lists) - { - printf("Creating new data lists.\n"); - data_lists = _data_new(); - if (!data_lists) - { - ret = -2; - goto end; - } - } - - if (argc > 3) - { - if (strcmp(argv[3], "union") == 0) - { - if (argc > 4) - { - int type = atoi(argv[4]); - Example_Union *un; - - if (type < EET_STRUCT1 || type > EET_STRUCT3) - { - fprintf(stderr, - "ERROR: invalid type parameter (%s).\n", - argv[4]); - goto cont; - } - - switch (type) - { - case 1: - if (argc != 8) - { - fprintf( - stderr, "ERROR: wrong number of parameters" - " (%d).\n", argc); - goto cont; - } - - un = _union_1_new( - argv[5], argv[6], argv[7]); - if (!un) - { - fprintf( - stderr, "ERROR: could not create the " - "requested union.\n"); - goto cont; - } - data_lists->union_list = - eina_list_append(data_lists->union_list, un); - break; - - case 2: - if (argc != 7) - { - fprintf( - stderr, "ERROR: wrong number of parameters" - " (%d).\n", argc); - goto cont; - } - - un = _union_2_new(argv[5], argv[6]); - if (!un) - { - fprintf( - stderr, "ERROR: could not create the " - "requested union.\n"); - goto cont; - } - data_lists->union_list = - eina_list_append(data_lists->union_list, un); - break; - - case 3: - if (argc != 6) - { - fprintf( - stderr, "ERROR: wrong number of parameters" - " (%d).\n", argc); - goto cont; - } - - un = _union_3_new(argv[5]); - if (!un) - { - fprintf( - stderr, "ERROR: could not create the " - "requested union.\n"); - goto cont; - } - data_lists->union_list = - eina_list_append(data_lists->union_list, un); - break; - - default: - fprintf( - stderr, "ERROR: bad type of of struct passed\n"); - goto cont; - } - } - else - fprintf(stderr, - "ERROR: wrong number of parameters (%d).\n", - argc); - } - else if (strcmp(argv[3], "variant") == 0) - { - if (argc > 4) - { - int type = atoi(argv[4]); - Example_Variant *va; - - if (type < EET_STRUCT1 || type > EET_STRUCT3) - { - fprintf(stderr, - "ERROR: invalid type parameter (%s).\n", - argv[4]); - goto cont; - } - - switch (type) - { - case 1: - if (argc != 8) - { - fprintf( - stderr, "ERROR: wrong number of parameters" - " (%d).\n", argc); - goto cont; - } - - va = _variant_1_new( - argv[5], argv[6], argv[7]); - if (!va) - { - fprintf( - stderr, "ERROR: could not create the " - "requested variant.\n"); - goto cont; - } - data_lists->variant_list = - eina_list_append(data_lists->variant_list, va); - break; - - case 2: - if (argc != 7) - { - fprintf( - stderr, "ERROR: wrong number of parameters" - " (%d).\n", argc); - goto cont; - } - - va = _variant_2_new(argv[5], argv[6]); - if (!va) - { - fprintf( - stderr, "ERROR: could not create the " - "requested variant.\n"); - goto cont; - } - data_lists->variant_list = - eina_list_append(data_lists->variant_list, va); - break; - - case 3: - if (argc != 6) - { - fprintf( - stderr, "ERROR: wrong number of parameters" - " (%d).\n", argc); - goto cont; - } - - va = _variant_3_new(argv[5]); - if (!va) - { - fprintf( - stderr, "ERROR: could not create the " - "requested variant.\n"); - goto cont; - } - data_lists->variant_list = - eina_list_append(data_lists->variant_list, va); - break; - - default: - fprintf( - stderr, "ERROR: bad type of of struct passed\n"); - goto cont; - } - } - else - fprintf(stderr, - "ERROR: wrong number of parameters (%d).\n", - argc); - } - else - fprintf(stderr, "ERROR: unknown action '%s'\n", argv[3]); - } - -cont: - printf("Cached data:\n"); - - printf("\tstats: unions=%u, variants=%u\n", - eina_list_count(data_lists->union_list), - eina_list_count(data_lists->variant_list)); - - if (eina_list_count(data_lists->union_list)) - { - const Eina_List *l; - const Example_Union *un; - printf("\t * union list:\n"); - - EINA_LIST_FOREACH(data_lists->union_list, l, un) - { - _print_union(un); - } - } - - if (eina_list_count(data_lists->variant_list)) - { - const Eina_List *l; - const Example_Variant *un; - printf("\t * variant list:\n"); - - EINA_LIST_FOREACH(data_lists->variant_list, l, un) - { - _print_variant(un); - } - } - - printf("\n"); - - if (!_data_save(data_lists, argv[2])) - ret = -3; - - _data_free(data_lists); - -end: - if (_cache_file) - eet_close(_cache_file); - _data_descriptors_shutdown(); - eet_shutdown(); - eina_shutdown(); - - return ret; -} /* main */ - |