/**
* Returns the number of record stores owned by the
* MIDlet suite.
*
* @param root storage root a MIDlet suite
*
* @return number of record stores or OUT_OF_MEM_LEN
*/
static int
rmsdb_get_number_of_record_stores_int(const pcsl_string* root) {
pcsl_string filename;
int numberOfStores = 0;
void* handle = NULL;
int errc = 0; /* 0 for ok, -1 for error -- see pcsl docs */
handle = storage_open_file_iterator(root);
if (!handle) {
return OUT_OF_MEM_LEN;
}
for(;;) {
errc = storage_get_next_file_in_iterator(root, handle, &filename);
if ( 0 != errc ) {
break;
}
if (pcsl_string_ends_with(&filename, &DB_EXTENSION)) {
numberOfStores++;
}
pcsl_string_free(&filename);
}
storageCloseFileIterator(handle);
return numberOfStores;
}
/**
* compare_two_strings wrapper.
* Reads a string from a current field of a current
* record and compares it with a passed value.
*
* @param key compare key
* @param case_sensitive case sensivity flag
* @param cond internal ID of comparision mode
* @return 1 if strings are equal (for the given mode)
*/
static int compare_string(const pcsl_string* search_key,
jsr211_boolean case_sensitive, find_condition cond) {
pcsl_string string = PCSL_STRING_NULL_INITIALIZER;
int compare_result;
int exact_result, first_result;
int equal_count, string_len;
read_string(&string);
string_len = pcsl_string_utf16_length(&string);
compare_result = cond != find_last ?
compare_two_strings(&string, search_key, case_sensitive):
pcsl_string_ends_with(search_key, &string);
pcsl_string_free(&string);
exact_result = compare_result == 0;
if (cond == find_last) {
return compare_result;
}
if (cond == find_exact) {
return exact_result;
}
equal_count = compare_result - 1;
first_result = (equal_count == string_len) || exact_result;
if (cond == find_first) {
return first_result;
}
if (cond == find_test) {
return first_result || equal_count == pcsl_string_utf16_length(search_key);
}
return 0;
}
/**
* Returns an array of the names of record stores owned by the
* MIDlet suite.
*
* @param filenameBase filenameBase of the suite
* @param ppNames pointer to pointer that will be filled in with names
*
* @return number of record store names or OUT_OF_MEM_LEN
*/
int
rmsdb_get_record_store_list(pcsl_string* filenameBase, pcsl_string* *const ppNames) {
int numberOfStores;
pcsl_string root;
pcsl_string* pStores;
pcsl_string filename;
pcsl_string ascii_name = PCSL_STRING_NULL_INITIALIZER;
int i;
void* handle = NULL;
MIDPError status;
int f_errc;
pcsl_string_status s_errc;
/* IMPL_NOTE: how can we get it statically? */
const int dbext_len = pcsl_string_length(&DB_EXTENSION);
*ppNames = NULL;
/*
* IMPL_NOTE: for security reasons the record store is always
* located in the internal storage.
*/
status = buildSuiteFilename(filenameBase, &PCSL_STRING_EMPTY, -1,
&root);
if (status != MIDP_ERROR_NONE) {
return status;
}
if (pcsl_string_is_null(&root)) {
return 0;
}
numberOfStores = rmsdb_get_number_of_record_stores_int(&root);
if (numberOfStores <= 0) {
pcsl_string_free(&root);
return numberOfStores;
}
pStores = alloc_pcsl_string_list(numberOfStores);
if (pStores == NULL) {
pcsl_string_free(&root);
return OUT_OF_MEM_LEN;
}
handle = storage_open_file_iterator(&root);
if (!handle) {
pcsl_string_free(&root);
return OUT_OF_MEM_LEN;
}
/* the main loop */
for (i=0,f_errc=0,s_errc=0;;) {
f_errc = storage_get_next_file_in_iterator(&root, handle, &filename);
if (0 != f_errc) {
f_errc = 0;
break;
}
if (pcsl_string_ends_with(&filename, &DB_EXTENSION)) {
s_errc =
pcsl_string_substring(&filename,
pcsl_string_length(&root),
pcsl_string_length(&filename)
- dbext_len,
&ascii_name);
pcsl_string_free(&filename);
if (PCSL_STRING_OK != s_errc ) {
break;
}
s_errc = pcsl_esc_extract_attached(0, &ascii_name, &pStores[i]);
pcsl_string_free(&ascii_name);
if (PCSL_STRING_OK != s_errc ) {
break;
}
i++;
}
pcsl_string_free(&filename);
/* IMPL_NOTE: do we need this one? isn't it useless? */
if (i == numberOfStores) {
break;
}
}
pcsl_string_free(&root);
storageCloseFileIterator(handle);
if (f_errc || s_errc) {
/* The loop stopped because we ran out of memory. */
free_pcsl_string_list(pStores, i);
return OUT_OF_MEM_LEN;
}
*ppNames = pStores;
return numberOfStores;
}
/**
* Returns an array of the names of record stores owned by the
* MIDlet suite.
*
* @param suiteId
* @param ppNames pointer to pointer that will be filled in with names
*
* @return number of record store names or OUT_OF_MEM_LEN
*/
int
rmsdb_get_record_store_list(SuiteIdType suiteId, pcsl_string* *const ppNames) {
int numberOfStores;
pcsl_string root;
pcsl_string* pStores;
pcsl_string filename;
pcsl_string ascii_name = PCSL_STRING_NULL_INITIALIZER;
int i;
void* handle = NULL;
MIDPError status;
int f_errc;
pcsl_string_status s_errc;
StorageIdType storageId;
/* IMPL_NOTE: how can we get it statically? */
const int dbext_len = pcsl_string_length(&DB_EXTENSION);
*ppNames = NULL;
/*
* IMPL Note: here is assumed that the record store is located in the same
* storage as the midlet suite. This may not be true.
*/
status = midp_suite_get_suite_storage(suiteId, &storageId);
if (status != ALL_OK) {
return OUT_OF_MEM_LEN;
}
status = midp_suite_get_rms_filename(suiteId, storageId, -1,
&PCSL_STRING_EMPTY, &root);
if (status != ALL_OK) {
return OUT_OF_MEM_LEN;
}
if (pcsl_string_is_null(&root)) {
return 0;
}
numberOfStores = rmsdb_get_number_of_record_stores_int(&root);
if (numberOfStores <= 0) {
pcsl_string_free(&root);
return numberOfStores;
}
pStores = alloc_pcsl_string_list(numberOfStores);
if (pStores == NULL) {
pcsl_string_free(&root);
return OUT_OF_MEM_LEN;
}
handle = storage_open_file_iterator(&root);
if (!handle) {
pcsl_string_free(&root);
return OUT_OF_MEM_LEN;
}
/* the main loop */
for(i=0,f_errc=0,s_errc=0;;) {
f_errc = storage_get_next_file_in_iterator(&root, handle, &filename);
if (0 != f_errc) {
f_errc = 0;
break;
}
if (pcsl_string_ends_with(&filename, &DB_EXTENSION)) {
s_errc =
pcsl_string_substring(&filename,
pcsl_string_length(&root),
pcsl_string_length(&filename)
- dbext_len,
&ascii_name);
pcsl_string_free(&filename);
if (PCSL_STRING_OK != s_errc ) {
break;
}
s_errc = escaped_ascii_to_unicode(&ascii_name, &pStores[i]);
pcsl_string_free(&ascii_name);
if (PCSL_STRING_OK != s_errc ) {
break;
}
i++;
}
pcsl_string_free(&filename);
/* IMPL_NOTE: do we need this one? isn't it useless? */
if (i == numberOfStores) {
break;
}
}
pcsl_string_free(&root);
storageCloseFileIterator(handle);
if (f_errc || s_errc) {
/* The loop stopped because we ran out of memory. */
free_pcsl_string_list(pStores, i);
return OUT_OF_MEM_LEN;
}
*ppNames = pStores;
return numberOfStores;
}
