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btstack_tlv_posix: allow to ignore db on disk and/or set read-only

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This commit is contained in:
Matthias Ringwald 2023-06-09 14:57:06 +02:00
parent 10cae6ea33
commit 4c7f8b037f
2 changed files with 24 additions and 6 deletions
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24
platform/posix/btstack_tlv_posix.c
View File

@ -67,9 +67,14 @@ typedef struct tlv_entry {
uint8_t value[DUMMY_SIZE]; // dummy size
} tlv_entry_t;
static int btstack_tlv_posix_append_tag(btstack_tlv_posix_t * self, uint32_t tag, const uint8_t * data, uint32_t data_size){
// testing support
static bool btstack_tlv_posix_read_only;
if (!self->file) return 1;
static void btstack_tlv_posix_append_tag(btstack_tlv_posix_t * self, uint32_t tag, const uint8_t * data, uint32_t data_size){
if (!self->file) return;
if (btstack_tlv_posix_read_only) return;
log_info("append tag %04x, len %u", tag, data_size);
@ -77,13 +82,12 @@ static int btstack_tlv_posix_append_tag(btstack_tlv_posix_t * self, uint32_t tag
big_endian_store_32(header, 0, tag);
big_endian_store_32(header, 4, data_size);
size_t written_header = fwrite(header, 1, sizeof(header), self->file);
if (written_header != sizeof(header)) return 1;
if (written_header != sizeof(header)) return;
if (data_size > 0) {
size_t written_value = fwrite(data, 1, data_size, self->file);
if (written_value != data_size) return 1;
if (written_value != data_size) return;
}
fflush(self->file);
return 1;
}
static tlv_entry_t * btstack_tlv_posix_find_entry(btstack_tlv_posix_t * self, uint32_t tag){
@ -269,11 +273,19 @@ const btstack_tlv_t * btstack_tlv_posix_init_instance(btstack_tlv_posix_t * self
memset(self, 0, sizeof(btstack_tlv_posix_t));
self->db_path = db_path;
btstack_tlv_posix_read_only = false;
// read DB
btstack_tlv_posix_read_db(self);
if (db_path != NULL){
btstack_tlv_posix_read_db(self);
}
return &btstack_tlv_posix;
}
void btstack_tlv_posix_set_read_only(bool read_only){
btstack_tlv_posix_read_only = read_only;
}
/**
* Free TLV entries
* @param self

6
platform/posix/btstack_tlv_posix.h
View File

@ -61,6 +61,12 @@ typedef struct {
*/
const btstack_tlv_t * btstack_tlv_posix_init_instance(btstack_tlv_posix_t * context, const char * db_path);
/**
* Enable/disable writing to TLV file
* @param read_only, default: false
*/
void btstack_tlv_posix_set_read_only(bool read_only);
/**
* Free TLV entries
* @param self