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Initial Async notify code changes

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Initial API implemented for notifying applications that an ASYNC_JOB
has completed. Currently only s_server is using this. The Dummy Async
engine "cheats" in that it notifies that it has completed *before* it
pauses the job. A normal async engine would not do that.

Only the posix version of this has been implemented so far, so it will
probably fail to compile on Windows at the moment.

Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Matt Caswell
2015-07-24 08:15:31 +01:00
parent 252d6d3aa6
commit f4da39d200
9 changed files with 140 additions and 12 deletions
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43
crypto/async/async.c
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@@ -106,11 +106,21 @@ static int ASYNC_CTX_free(void)
static ASYNC_JOB *ASYNC_JOB_new(void)
{
ASYNC_JOB *job = NULL;
int pipefds[2];
if(!(job = OPENSSL_malloc(sizeof (ASYNC_JOB)))) {
return NULL;
}
if(!async_pipe(pipefds)) {
OPENSSL_free(job);
return NULL;
}
job->wake_set = 0;
job->wait_fd = pipefds[0];
job->wake_fd = pipefds[1];
job->status = ASYNC_JOB_RUNNING;
job->funcargs = NULL;
@@ -335,3 +345,36 @@ void ASYNC_free_pool(void)
} while (job);
sk_ASYNC_JOB_free(pool);
}
ASYNC_JOB *ASYNC_get_current_job(void)
{
ASYNC_CTX *ctx;
if((ctx = ASYNC_get_ctx()) == NULL)
return NULL;
return ctx->currjob;
}
int ASYNC_get_wait_fd(ASYNC_JOB *job)
{
return job->wait_fd;
}
void ASYNC_wake(ASYNC_JOB *job)
{
char dummy = 0;
if (job->wake_set)
return;
async_write1(job->wake_fd, &dummy);
job->wake_set = 1;
}
void ASYNC_clear_wake(ASYNC_JOB *job)
{
char dummy = 0;
if (!job->wake_set)
return;
async_read1(job->wait_fd, &dummy);
job->wake_set = 0;
}