// find an entry in the db; return offset of id or FAIL
int findKey(char *id) {
int start = STARTDB;
while (start < ENDDB-4) {
// find the next entry
start = findoccupied(start);
if (start == FAIL) return FAIL;
// start points to EEPROM id - check for match with id
if (eestrmatch(start, id)) return start;
// no match - skip the id and its value and continue scanning
start = findend(start); // scan past id
start = findend(start); // and value
}
return FAIL;
}
// list the strings in the avpdb
void cmd_ls(void) {
int start = STARTDB;
for (;;) {
// find the next entry
start = findoccupied(start);
if (start == FAIL) return;
eeputs(start);
msgp(M_defmacro);
start = findend(start);
eeputs(start);
spb('"');
speol();
start = findend(start);
}
}
// find an empty space of a given size or eep
int findhole(int size) {
int starthole = STARTDB, endhole;
for (;;) {
if (starthole + size > ENDDB) break; // ain't gonna fit
starthole = findunoccupied(starthole); // first byte of next hole, or
if (starthole == FAIL) break; // outa holes
endhole = findoccupied(starthole); // first byte or next block, or
if (endhole == FAIL) endhole = ENDDB+1; // the first byte thou shall not touch
// endhole is now on first char of next non-empty block, or one past ENDDB
if ((endhole - starthole) >= size) return starthole; // success
starthole = endhole; // find another hole
}
overflow(M_eeprom);
return 0; // placate compiler
}
// list the strings in the avpdb
void cmd_ls(void) {
int start = STARTDB;
for (;;) {
// find the next entry
start = findoccupied(start);
if (start == FAIL) return;
msgp(M_function);
spb(' ');
eeputs(start);
spb(' ');
spb('{');
start = findend(start);
eeputs(start);
spb('}');
spb(';');
speol();
start = findend(start);
}
}