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desmume
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Added check that index file was actually openned for writing. 

If not, skip creating backup part of loading.
This commit is contained in:
Keppl 2022-04-12 19:07:06 -04:00
parent dec93fecfa
commit 631f2a265e
1 changed files with 15 additions and 10 deletions
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25
desmume/src/saves.cpp
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@ -765,19 +765,24 @@ void loadstate_slot(int num)
index_file = fopen(index_fname.c_str(), "w"); // Create if doesn't exist
}
cur_index = (cur_index + 1) % max_index; // next
if (index_file) {
cur_index = (cur_index + 1) % max_index; // next
fprintf(index_file, "%d", cur_index); // Store new index
fprintf(index_file, "%d", EOF); // Avoid overwriting just most significant digits(e.g.: 1 -> 200 = 100 )
fclose(index_file);
fprintf(index_file, "%d", cur_index); // Store new index
fprintf(index_file, "%d", EOF); // Avoid overwriting just most significant digits(e.g.: 1 -> 200 = 100 )
fclose(index_file);
std::string fname = dirname + PSS;
char mini[100];
sprintf(mini,"%u", cur_index);
fname += mini + (std::string)".dst";
std::string fname = dirname + PSS;
char mini[100];
sprintf(mini, "%u", cur_index);
fname += mini + (std::string)".dst";
savestate_save(fname.c_str());
printf("Creating backup of current state prior to loadstate as path: %s\n",fname.c_str());
savestate_save(fname.c_str());
printf("Creating backup of current state prior to loadstate as path: %s\n", fname.c_str());
}
else {
printf("Failed to open indexing file %s\n Prior state backup not created, check location write permissions.\n", index_fname.c_str());
}
}
}