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add DataStore::deleteBlobByKey()

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This commit is contained in:
taco 2026-01-27 17:51:30 +11:00
parent 06a83c0453
commit e6e1b810f8
3 changed files with 19 additions and 0 deletions
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16
examples/companion_radio/DataStore.cpp
View file

@ -560,6 +560,9 @@ bool DataStore::putBlobByKey(const uint8_t key[], int key_len, const uint8_t src
}
return false; // error
}
bool DataStore::deleteBlobByKey(const uint8_t key[], int key_len) {
return true; // this is just a stub on NRF52/STM32 platforms
}
#else
uint8_t DataStore::getBlobByKey(const uint8_t key[], int key_len, uint8_t dest_buf[]) {
char path[64];
@ -598,4 +601,17 @@ bool DataStore::putBlobByKey(const uint8_t key[], int key_len, const uint8_t src
}
return false; // error
}
bool DataStore::deleteBlobByKey(const uint8_t key[], int key_len) {
char path[64];
char fname[18];
if (key_len > 8) key_len = 8; // just use first 8 bytes (prefix)
mesh::Utils::toHex(fname, key, key_len);
sprintf(path, "/bl/%s", fname);
_fs->remove(path);
return true; // return true even if file did not exist
}
#endif

1
examples/companion_radio/DataStore.h
View file

@ -42,6 +42,7 @@ public:
void migrateToSecondaryFS();
uint8_t getBlobByKey(const uint8_t key[], int key_len, uint8_t dest_buf[]);
bool putBlobByKey(const uint8_t key[], int key_len, const uint8_t src_buf[], uint8_t len);
bool deleteBlobByKey(const uint8_t key[], int key_len);
File openRead(const char* filename);
File openRead(FILESYSTEM* fs, const char* filename);
bool removeFile(const char* filename);

2
examples/companion_radio/MyMesh.cpp
View file

@ -307,6 +307,7 @@ bool MyMesh::shouldOverwriteWhenFull() const {
}
void MyMesh::onContactOverwrite(const uint8_t* pub_key) {
_store->deleteBlobByKey(pub_key, PUB_KEY_SIZE); // delete from storage
if (_serial->isConnected()) {
out_frame[0] = PUSH_CODE_CONTACT_DELETED;
memcpy(&out_frame[1], pub_key, PUB_KEY_SIZE);
@ -1124,6 +1125,7 @@ void MyMesh::handleCmdFrame(size_t len) {
uint8_t *pub_key = &cmd_frame[1];
ContactInfo *recipient = lookupContactByPubKey(pub_key, PUB_KEY_SIZE);
if (recipient && removeContact(*recipient)) {
_store->deleteBlobByKey(pub_key, PUB_KEY_SIZE);
dirty_contacts_expiry = futureMillis(LAZY_CONTACTS_WRITE_DELAY);
writeOKFrame();
} else {