/* Set */
eEsifError DataVault_SetValue(
DataVaultPtr self,
EsifDataPtr path,
EsifDataPtr value,
esif_flags_t flags
)
{
eEsifError rc = ESIF_OK;
DataCacheEntryPtr keypair;
if (FLAGS_TEST(self->flags, ESIF_SERVICE_CONFIG_STATIC | ESIF_SERVICE_CONFIG_READONLY)) {
return ESIF_E_READONLY;
}
// Ignore value for DELETEs
if (FLAGS_TEST(flags, ESIF_SERVICE_CONFIG_DELETE)) {
value = NULL;
}
// AUTO data types or AUTO_ALLOCATE are not allowed for SET
if (value && (value->type == ESIF_DATA_AUTO || value->buf_len == ESIF_DATA_ALLOCATE)) {
return ESIF_E_UNSUPPORTED_RESULT_DATA_TYPE;
}
// Reject SETs for static-sized data types whose buffer is too small
if (value) {
u32 len = (u32) esif_data_type_sizeof(value->type);
if (len > 0 && value->buf_len < len) {
value->data_len = len;
return ESIF_E_NEED_LARGER_BUFFER;
}
}
// Write to Log
DataVault_WriteLog(self, (flags & ESIF_SERVICE_CONFIG_DELETE ? "DELETE" : "SET"), self->name, path, flags, value);
// Delete DataVault Key(s)?
if (esif_ccb_strpbrk((esif_string)path->buf_ptr, "*?") != NULL) {
if (flags & ESIF_SERVICE_CONFIG_DELETE) {
UInt32 item = 0;
while (item < self->cache->size) {
if (esif_ccb_strmatch((esif_string)self->cache->elements[item].key.buf_ptr, (esif_string)path->buf_ptr)) {
flags |= FLAGS_TEST(self->cache->elements[item].flags, ESIF_SERVICE_CONFIG_PERSIST);
if (DataCache_DeleteValue(self->cache, (esif_string)self->cache->elements[item].key.buf_ptr) == ESIF_OK) {
continue;
}
}
item++;
}
goto exit;
}
return ESIF_E_NOT_SUPPORTED; // Keys may not contain "*" or "?"
}
// Read data from File
// TODO: Change Parser Logic and Syntax instead
if (value && value->buf_ptr && esif_ccb_strncmp((char*)value->buf_ptr, "<<", 2) == 0) {
void *buffer = 0;
UInt32 buflen = 0;
if (ReadFileIntoBuffer((char*)value->buf_ptr + 2, &buffer, &buflen) == ESIF_OK) {
if (value->buf_len) {
esif_ccb_free(value->buf_ptr);
}
value->buf_ptr = buffer;
if (value->type == ESIF_DATA_STRING) {
buflen++; // Include Null Terminator
}
value->buf_len = value->data_len = buflen;
} else {
return ESIF_E_UNSPECIFIED; // TODO: File Not Found
}
}
// Get the Data Row or create it if it does not exist
keypair = DataCache_GetValue(self->cache, (esif_string)path->buf_ptr);
if (keypair) { // Match Found
// READONLY?
if (keypair->flags & ESIF_SERVICE_CONFIG_READONLY) {
rc = ESIF_E_READONLY;
}
// DELETE?
else if (flags & ESIF_SERVICE_CONFIG_DELETE) {
flags |= keypair->flags;
DataCache_DeleteValue(self->cache, (esif_string)path->buf_ptr);
} else if (value && value->buf_ptr) {
// UPDATE
if (keypair->value.buf_len > 0 && value->data_len != keypair->value.buf_len) {
void *new_buf = NULL;
u32 new_buf_len = 0;
// Grow or shrink buffer if it was allocated, otherwise ask for a larger buffer
new_buf_len = esif_ccb_max(1, value->data_len);
new_buf= (void *)esif_ccb_realloc(keypair->value.buf_ptr, new_buf_len);
if (new_buf == NULL) {
return ESIF_E_NEED_LARGER_BUFFER;
}
else {
keypair->value.buf_len = new_buf_len;
keypair->value.buf_ptr = new_buf;
}
}
// Replace the File Offset stored in buf_ptr with a copy of the data for updated NOCACHE values
if (keypair->flags & ESIF_SERVICE_CONFIG_NOCACHE && keypair->value.buf_len == 0) {
keypair->value.buf_len = esif_ccb_max(1, value->data_len);
keypair->value.buf_ptr = esif_ccb_malloc(value->buf_len);
}
keypair->flags = flags;
keypair->value.type = value->type;
keypair->value.data_len = value->data_len;
esif_ccb_memcpy(keypair->value.buf_ptr, value->buf_ptr, value->data_len);
rc = ESIF_OK;
}
} else if (value && value->buf_ptr && !(flags & ESIF_SERVICE_CONFIG_DELETE)) {
EsifDataPtr valueClonePtr = NULL;
//
// The data passed in may be in a buffer owned elsewhere, so clone the data
//
valueClonePtr = EsifData_Clone(value);
if (NULL == valueClonePtr) {
rc = ESIF_E_NO_MEMORY;
goto exit;
}
DataCache_InsertValue(self->cache, (esif_string)path->buf_ptr, valueClonePtr, flags);
EsifData_Destroy(valueClonePtr);
}
exit:
// If Persisted, Flush to disk
if (rc == ESIF_OK && FLAGS_TEST(flags, ESIF_SERVICE_CONFIG_PERSIST)) {
rc = DataVault_WriteVault(self);
}
return rc;
}
/* Set */
eEsifError DataVault_SetValue (
DataVaultPtr self,
EsifDataPtr path,
EsifDataPtr value,
esif_flags_t flags
)
{
eEsifError rc = ESIF_OK;
DataCacheEntryPtr keypair;
if (FLAGS_TEST(self->flags, ESIF_SERVICE_CONFIG_STATIC | ESIF_SERVICE_CONFIG_READONLY)) {
return ESIF_E_READONLY;
}
// Ignore value for DELETEs
if (FLAGS_TEST(flags, ESIF_SERVICE_CONFIG_DELETE)) {
value = NULL;
}
// TODO: Locking
// AUTO data types or AUTO_ALLOCATE are not allowed for SET
if (value && (value->type == ESIF_DATA_AUTO || value->buf_len == ESIF_DATA_ALLOCATE)) {
return ESIF_E_UNSUPPORTED_RESULT_DATA_TYPE;
}
// Write to Log
DataVault_WriteLog(self, (flags & ESIF_SERVICE_CONFIG_DELETE ? "DELETE" : "SET"), self->name, path, flags, value);
// Delete entire DataVault?
if (strcmp((esif_string)path->buf_ptr, "*") == 0) {
if (flags & ESIF_SERVICE_CONFIG_DELETE) {
DataCache_Destroy(self->cache);
if ((self->cache = DataCache_Create()) == NULL) {
return ESIF_E_NO_MEMORY;
}
DataVault_WriteVault(self);
return ESIF_OK;
}
return ESIF_E_NOT_SUPPORTED;// "*" is an invalid key value
}
// Read data from File
// TODO: Change Parser Logic and Syntax instead
if (value && value->buf_ptr && esif_ccb_strncmp((char*)value->buf_ptr, "<<", 2) == 0) {
void *buffer = 0;
UInt32 buflen = 0;
if (DataVault_ReadFile(self, (char*)value->buf_ptr + 2, &buffer, &buflen) == ESIF_OK) {
value->buf_ptr = buffer;
if (value->type == ESIF_DATA_STRING) {
buflen++; // Include Null Terminator
}
value->buf_len = value->data_len = buflen;
} else {
return ESIF_E_UNSPECIFIED; // TODO: File Not Found
}
}
// Get the Data Row or create it if it does not exist
keypair = DataCache_GetValue(self->cache, (esif_string)path->buf_ptr);
if (keypair) { // Match Found
// READONLY?
if (keypair->flags & ESIF_SERVICE_CONFIG_READONLY) {
rc = ESIF_E_READONLY;
}
// DELETE?
else if (flags & ESIF_SERVICE_CONFIG_DELETE) {
flags |= keypair->flags;
DataCache_Delete(self->cache, (esif_string)path->buf_ptr);
} else if (value && value->buf_ptr) {
// UPDATE
#ifdef ESIF_ATTR_OS_WINDOWS
// Update Registry Value for REGKEY values if REGLINK is *NOT* specified in SET command
if ((keypair->flags & ESIF_SERVICE_CONFIG_REGLINK) && !(flags & ESIF_SERVICE_CONFIG_REGLINK)) {
keypair->value.type = value->type;
rc = DataVault_WriteRegistry(self, (esif_string)keypair->value.buf_ptr, value);
} else // ...
#endif
if (keypair->value.buf_len && value->data_len > keypair->value.buf_len) {
rc = ESIF_E_NEED_LARGER_BUFFER;
} else {
keypair->flags = flags;
keypair->value.type = value->type;
keypair->value.data_len = value->data_len;
// Replace the File Offset stored in buf_ptr with a copy of the data for updated NOCACHE values
if (keypair->flags & ESIF_SERVICE_CONFIG_NOCACHE && keypair->value.buf_len == 0) {
keypair->value.buf_ptr = esif_ccb_malloc(value->data_len);
keypair->value.buf_len = value->data_len;
}
esif_ccb_memcpy(keypair->value.buf_ptr, value->buf_ptr, value->data_len);
rc = ESIF_OK;
}
}
} else if (value && value->buf_ptr && !(flags & ESIF_SERVICE_CONFIG_DELETE)) {
// Copy Key/Value Pair to new Data Row
EsifData newkey = {ESIF_DATA_STRING, esif_ccb_strdup((esif_string)path->buf_ptr), path->data_len, path->data_len};
EsifData newvalue = {value->type, esif_ccb_malloc(esif_ccb_max(value->buf_len, value->data_len)), value->data_len, value->data_len};
esif_ccb_memcpy(newvalue.buf_ptr, value->buf_ptr, value->data_len);
DataCache_SetValue(self->cache, (esif_string)newkey.buf_ptr, newvalue, flags);
esif_ccb_free(newkey.buf_ptr);
}
// If Persisted, Flush to disk
if (rc == ESIF_OK && FLAGS_TEST(flags, ESIF_SERVICE_CONFIG_PERSIST)) {
DataVault_WriteVault(self);
}
return rc;
}
