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Replaced write system function with wrapper gw_write. It allows for generating failures by using telnet commands, fail backendfd, fail clientfd, which are available in debug build only.

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This commit is contained in:
vraatikka
2013-09-17 00:07:56 +03:00
parent db7004e6ae
commit 8bf73ea154
11 changed files with 197 additions and 42 deletions
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18
server/modules/protocol/mysql_backend.c
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@ -149,11 +149,10 @@ static int gw_read_backend_event(DCB *dcb) {
CHK_DCB(dcb);
CHK_SESSION(dcb->session);
ss_info_dassert(dcb->session != NULL,
"Backend dcb doesn't have session");
backend_protocol = (MySQLProtocol *) dcb->protocol;
CHK_PROTOCOL(backend_protocol);
/** return only with complete session */
current_session = gw_get_shared_session_auth_info(dcb);
ss_dassert(current_session != NULL);
@ -180,7 +179,8 @@ static int gw_read_backend_event(DCB *dcb) {
current_session->db,
current_session->user,
current_session->client_sha1,
backend_protocol) != 0) {
backend_protocol) != 0)
{
backend_protocol->state = MYSQL_AUTH_FAILED;
rc = 1;
} else {
@ -411,6 +411,7 @@ static int
gw_MySQLWrite_backend(DCB *dcb, GWBUF *queue)
{
MySQLProtocol *backend_protocol = dcb->protocol;
int rc;
/**
* Don't write to backend if backend_dcb is not in poll set anymore.
@ -444,8 +445,8 @@ gw_MySQLWrite_backend(DCB *dcb, GWBUF *queue)
memcpy(&dcb->command, &queue->command, sizeof(dcb->command));
spinlock_release(&dcb->authlock);
return dcb_write(dcb, queue);
rc = dcb_write(dcb, queue);
return rc;
}
/**
@ -631,6 +632,7 @@ static void backend_set_delayqueue(DCB *dcb, GWBUF *queue) {
static int backend_write_delayqueue(DCB *dcb)
{
GWBUF *localq = NULL;
int rc;
spinlock_acquire(&dcb->delayqlock);
@ -644,8 +646,8 @@ static int backend_write_delayqueue(DCB *dcb)
memcpy(&dcb->command, &localq->command, sizeof(dcb->command));
spinlock_release(&dcb->delayqlock);
return dcb_write(dcb, localq);
rc = dcb_write(dcb, localq);
return rc;
}