view power.cpp @ 403:7038f31124d1 api-inversion

Better error-checking for operations which write to the database.

When I said /* FIXME: we should probably include... */ it hadn't
occurred to me that I had already included the relevant "..." (in this
case, the flags field in struct adb, which does contain the O_RDONLY /
O_RDWR flag which was used to open the database).  Sometimes I am
pleasantly surprised with my foresight.

#include "audioDB.h"
extern "C" {
#include "audioDB_API.h"
#include "audioDB-internals.h"
}

int audiodb_power(adb_t *adb) {
  if(!(adb->flags & O_RDWR)) {
    return 1;
  }
  if(adb->header->length > 0) {
    return 1;
  }

  adb->header->flags |= O2_FLAG_POWER;
  return audiodb_sync_header(adb);
}