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implements request cancellation, cleans up success/failure handling

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This commit is contained in:
Joseph Bryan 2018-03-13 22:44:51 -04:00
parent 221207053d
commit cf47c0a2b8
1 changed files with 70 additions and 31 deletions
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101
vere/cttp.c
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@ -407,6 +407,13 @@ _cttp_cres_free(u3_cres* res_u)
free(res_u);
}
static void
_cttp_cres_new(u3_creq* ceq_u, c3_w sas_w)
{
ceq_u->res_u = c3_calloc(sizeof(*ceq_u->res_u));
ceq_u->res_u->sas_w = sas_w;
}
/* _cttp_creq_fire_body(): attach body to request buffers.
*/
static void
@ -488,6 +495,22 @@ _cttp_creq_fire(u3_creq* ceq_u)
}
}
static u3_creq*
_cttp_creq_find(c3_l num_l)
{
u3_creq* ceq_u = u3_Host.ctp_u.ceq_u;
// XX glories of linear search
//
while ( ceq_u ) {
if ( num_l == ceq_u->num_l ) {
return ceq_u;
}
ceq_u = ceq_u->nex_u;
}
return 0;
}
static void
_cttp_creq_link(u3_creq* ceq_u)
{
@ -528,6 +551,21 @@ _cttp_creq_free(u3_creq* ceq_u)
free(ceq_u);
}
static void
_cttp_creq_fail(u3_creq* ceq_u, const c3_c* err_c)
{
// XX anything other than a 504?
_cttp_httr_fail(ceq_u->num_l, 504, (c3_c *)err_c);
_cttp_creq_free(ceq_u);
}
static void
_cttp_creq_respond(u3_creq* ceq_u)
{
_cttp_httr_cres(ceq_u->num_l, ceq_u->res_u);
_cttp_creq_free(ceq_u);
}
// req from ++hiss
static u3_creq*
_cttp_creq_new(c3_l num_l, u3_noun hes)
@ -616,28 +654,25 @@ _cttp_bufs_to_vec(u3_hbod* rub_u, c3_w* tot_w)
}
// XX research: may be called with closed client?
static int
static c3_i
on_body(h2o_http1client_t* cli_u, const c3_c* err_c)
{
u3_creq* ceq_u = (u3_creq *)cli_u->data;
u3_cres* res_u = ceq_u->res_u;
if ( 0 != err_c && h2o_http1client_error_is_eos != err_c ) {
_cttp_httr_fail(ceq_u->num_l, 504, (c3_c *)err_c);
_cttp_creq_free(ceq_u);
_cttp_creq_fail(ceq_u, err_c);
return -1;
}
h2o_socket_t* sok_u = cli_u->sock;
if ( sok_u->input->size ) {
_cttp_cres_queue_buf(res_u, sok_u->input);
_cttp_cres_queue_buf(ceq_u->res_u, sok_u->input);
h2o_buffer_consume(&sok_u->input, sok_u->input->size);
}
if ( h2o_http1client_error_is_eos == err_c ) {
_cttp_httr_cres(ceq_u->num_l, res_u);
_cttp_creq_free(ceq_u);
_cttp_creq_respond(ceq_u);
}
return 0;
@ -677,19 +712,15 @@ on_head(h2o_http1client_t* cli_u, const c3_c* err_c, c3_i ver_i, c3_i sas_i,
u3_creq* ceq_u = (u3_creq *)cli_u->data;
if ( 0 != err_c && h2o_http1client_error_is_eos != err_c ) {
_cttp_httr_fail(ceq_u->num_l, 504, (c3_c *)err_c);
_cttp_creq_free(ceq_u);
_cttp_creq_fail(ceq_u, err_c);
return 0;
}
u3_cres* res_u = c3_calloc(sizeof(*res_u));
ceq_u->res_u = res_u;
res_u->sas_w = (c3_w)sas_i;
res_u->hed = _cttp_heds_to_noun(hed_u, hed_t);
_cttp_cres_new(ceq_u, (c3_w)sas_i);
ceq_u->res_u->hed = _cttp_heds_to_noun(hed_u, hed_t);
if ( h2o_http1client_error_is_eos == err_c ) {
_cttp_httr_cres(ceq_u->num_l, res_u);
_cttp_creq_free(ceq_u);
_cttp_creq_respond(ceq_u);
return 0;
}
@ -701,18 +732,19 @@ on_connect(h2o_http1client_t* cli_u, const c3_c* err_c, h2o_iovec_t** vec_p,
size_t* vec_t, c3_i* hed_i)
{
u3_creq* ceq_u = (u3_creq *)cli_u->data;
c3_w len_w;
if ( 0 != err_c ) {
_cttp_httr_fail(ceq_u->num_l, 504, (c3_c *)err_c);
_cttp_creq_free(ceq_u);
_cttp_creq_fail(ceq_u, err_c);
return 0;
}
ceq_u->vec_u = _cttp_bufs_to_vec(ceq_u->rub_u, &len_w);
*vec_t = len_w;
*vec_p = ceq_u->vec_u;
*hed_i = c3__head == ceq_u->met_m;
{
c3_w len_w;
ceq_u->vec_u = _cttp_bufs_to_vec(ceq_u->rub_u, &len_w);
*vec_t = len_w;
*vec_p = ceq_u->vec_u;
*hed_i = c3__head == ceq_u->met_m;
}
return on_head;
}
@ -732,10 +764,12 @@ _cttp_creq_connect(u3_creq* ceq_u)
// set hostname for TLS handshake
if ( ceq_u->hot_c && c3y == ceq_u->sec ) {
c3_w len_w = 1 + strlen(ceq_u->hot_c);
c3_c* hot_c = c3_malloc(len_w);
strncpy(hot_c, ceq_u->hot_c, len_w);
free(ceq_u->cli_u->ssl.server_name);
c3_w len_w = 1 + strlen(ceq_u->hot_c);
ceq_u->cli_u->ssl.server_name = c3_malloc(len_w);
strncpy(ceq_u->cli_u->ssl.server_name, ceq_u->hot_c, len_w);
ceq_u->cli_u->ssl.server_name = hot_c;
}
_cttp_creq_fire(ceq_u);
@ -749,8 +783,7 @@ _cttp_creq_resolve_cb(uv_getaddrinfo_t* adr_u,
u3_creq* ceq_u = adr_u->data;
if ( 0 != sas_i ) {
_cttp_httr_fail(ceq_u->num_l, 504, (c3_c *)uv_strerror(sas_i));
_cttp_creq_free(ceq_u);
_cttp_creq_fail(ceq_u, uv_strerror(sas_i));
return;
}
@ -784,8 +817,7 @@ _cttp_creq_resolve(u3_creq* ceq_u)
if ( 0 != (sas_i = uv_getaddrinfo(u3L, adr_u, _cttp_creq_resolve_cb,
ceq_u->hot_c, por_c, &hin_u)) ) {
_cttp_httr_fail(ceq_u->num_l, 504, (c3_c *)uv_strerror(sas_i));
_cttp_creq_free(ceq_u);
_cttp_creq_fail(ceq_u, uv_strerror(sas_i));
}
}
@ -805,8 +837,15 @@ void
u3_cttp_ef_thus(c3_l num_l,
u3_noun cuq)
{
u3_creq* ceq_u;
if ( u3_nul == cuq ) {
uL(fprintf(uH, "thus: cancel?\n"));
ceq_u =_cttp_creq_find(num_l);
if ( ceq_u ) {
h2o_http1client_cancel(ceq_u->cli_u);
_cttp_creq_free(ceq_u);
}
}
else {
#if 1
@ -831,7 +870,7 @@ u3_cttp_ef_thus(c3_l num_l,
uL(fprintf(uH, "\n"));
#endif
u3_creq* ceq_u = _cttp_creq_new(num_l, u3k(u3t(cuq)));
ceq_u = _cttp_creq_new(num_l, u3k(u3t(cuq)));
_cttp_creq_start(ceq_u);
}
u3z(cuq);