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Revert "Avoid reallocations of the parent data for WUPS_STORAGE_TYPE_ITEM items."

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Maschell 2023-02-15 17:51:22 +01:00
parent 90d1e51922
commit 7f76e31e70
2 changed files with 5 additions and 23 deletions
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1
include/wups/storage.h
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@ -27,7 +27,6 @@ typedef enum {
WUPS_STORAGE_ERROR_B64_DECODE_FAILED = -9,
WUPS_STORAGE_ERROR_BUFFER_TOO_SMALL = -10,
WUPS_STORAGE_ERROR_MALLOC_FAILED = -11,
WUPS_STORAGE_ERROR_SUB_ITEM_REALLOC = -12,
} WUPSStorageError;
typedef struct wups_storage_item_t_ {

27
libraries/libwups/storage.cpp
View File

@ -55,8 +55,6 @@ const char *WUPS_GetStorageStatusStr(WUPSStorageError status) {
return "WUPS_STORAGE_ERROR_BUFFER_TOO_SMALL";
case WUPS_STORAGE_ERROR_MALLOC_FAILED:
return "WUPS_STORAGE_ERROR_MALLOC_FAILED";
case WUPS_STORAGE_ERROR_SUB_ITEM_REALLOC:
return "WUPS_STORAGE_ERROR_SUB_ITEM_REALLOC";
}
return "WUPS_STORAGE_ERROR_UNKNOWN";
}
@ -223,37 +221,22 @@ static wups_storage_item_t *addItem(wups_storage_item_t *parent, const char *key
}
if (!foundItem) {
// Only allow allocation for WUPS_STORAGE_TYPE_ITEM if it's the first item.
// The realloc would cause the outPtr of previous WUPS_CreateSubItem call to be invalid.
if (parent->data_size > 0 && type == WUPS_STORAGE_TYPE_ITEM) {
*error = WUPS_STORAGE_ERROR_SUB_ITEM_REALLOC;
return nullptr;
}
// Increase in step of 8 to avoid realloc calls (at the costs of some memory).
constexpr uint32_t INCREASE_SIZE_BY = 8;
auto *newPtr = (wups_storage_item_t *) realloc(parent->data, (parent->data_size + INCREASE_SIZE_BY) * sizeof(wups_storage_item_t));
auto *newPtr = (wups_storage_item_t *) realloc(parent->data, (parent->data_size + 1) * sizeof(wups_storage_item_t));
if (newPtr == nullptr) {
*error = WUPS_STORAGE_ERROR_MALLOC_FAILED;
return nullptr;
}
parent->data = newPtr;
for (uint32_t j = parent->data_size; j < INCREASE_SIZE_BY; j++) {
auto curItem = &((wups_storage_item_t *) parent->data)[j];
memset(curItem, 0, sizeof(wups_storage_item_t));
curItem->deleted = true;
}
foundItem = &((wups_storage_item_t *) parent->data)[parent->data_size];
memset(foundItem, 0, sizeof(wups_storage_item_t));
foundItem->deleted = true;
parent->data_size += INCREASE_SIZE_BY;
parent->data_size += 1;
foundItem->key = strdup(key);
if (foundItem->key == nullptr) {
foundItem->deleted = true;
*error = WUPS_STORAGE_ERROR_MALLOC_FAILED;
*error = WUPS_STORAGE_ERROR_MALLOC_FAILED;
return nullptr;
}
}