CODEWITHSUNDEEP
vala
patpir
patpir

Reputation: 1223

Vala int.parse crashing

I want to build a simple Tool to check for SVN revision number changes ( = someone committed), but I'm stuck at a very strange issue. When I compile and run my code, the first of the following messages gets printed, the next doesn't:

while (true) {
    var msg = new Soup.Message("GET", this.repo.URL);
    session.send_message(msg);
    MatchInfo matchInfo;
    pattern.match((string)msg.response_body.data, 0, out matchInfo);
    var revisionString = matchInfo.fetch_named("revision");
    stdout.printf("Current Revision: [%s]\n", revisionString);
    var currentRevision = int.parse("383");
    stdout.printf("Current Revision parsed %d", currentRevision);
    Thread.usleep(150000000);
}

I inserted the hardcoded string "383" just for testing, but it still fails. I can't see anything wrong with the printf's either, and there are no compiler errors.
If it would help, I could post some more code.

Upvotes: 1

Views: 219

Answers (1)

apmasell
apmasell

Reputation: 7153

int.parse just calls atoi. You can verify this by looking at the generated C.

atoi is not thread-safe and I'm assuming you're running this in multiple threads due to your Thread.usleep.

Use int64.try_parse instead, which is based on strtoll.

Also, try a more minimal test case not involving the this.repo.LastRevision.

Upvotes: 1

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