void
ngx_tcp_lua_req_resume(ngx_tcp_session_t *s)
{
int nret = 0;
ngx_int_t rc;
ngx_connection_t *c;
ngx_tcp_lua_ctx_t *ctx;
ngx_tcp_lua_main_conf_t *lmcf;
c = s->connection;
ctx = s->ctx;
if (ctx->prepare_retvals) {
nret = ctx->prepare_retvals(s,ctx->co);
ctx->prepare_retvals = NULL;
}
lmcf = ngx_tcp_get_module_main_conf(s, ngx_tcp_lua_module);
dd("about to run thread for %p ", s);
rc = ngx_tcp_lua_run_thread(lmcf->lua, s, ctx, nret);
ngx_log_debug1(NGX_LOG_DEBUG_TCP, c->log, 0,
"lua run thread returned %d", rc);
if (rc == NGX_ERROR || rc == NGX_OK) {
ngx_tcp_lua_close_session(s);
return;
}
//NGX_AGAIN
return;
}
ngx_int_t
ngx_tcp_lua_process_by_chunk(lua_State *L, ngx_tcp_session_t *s)
{
int cc_ref;
lua_State *cc;
ngx_tcp_lua_ctx_t *ctx;
ngx_tcp_cleanup_t *cln;
dd("content by chunk");
ctx = ngx_tcp_get_module_ctx(s, ngx_tcp_lua_module);
if (ctx == NULL) {
ctx = ngx_pcalloc(s->pool, sizeof(ngx_tcp_lua_ctx_t));
if (ctx == NULL) {
return NGX_ERROR;
}
dd("setting new ctx, ctx = %p", ctx);
ctx->cc_ref = LUA_NOREF;
ctx->ctx_ref = LUA_NOREF;
ctx->exited = 0;
ngx_tcp_set_ctx(s, ctx, ngx_tcp_lua_module);
} else {
dd("reset ctx");
ngx_tcp_lua_reset_ctx(s, L, ctx);
}
/* {{{ new coroutine to handle request */
cc = ngx_tcp_lua_new_thread(s, L, &cc_ref);
if (cc == NULL) {
ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
"(lua-content-by-chunk) failed to create new coroutine "
"to handle request");
return NGX_ERROR;
}
/* move code closure to new coroutine */
lua_xmove(L, cc, 1);
/* set closure's env table to new coroutine's globals table */
lua_pushvalue(cc, LUA_GLOBALSINDEX);
lua_setfenv(cc, -2);
/* save nginx request in coroutine globals table */
lua_pushlightuserdata(cc, &ngx_tcp_lua_request_key);
lua_pushlightuserdata(cc, s);
lua_rawset(cc, LUA_GLOBALSINDEX);
/* }}} */
ctx->co = cc;
ctx->cc_ref = cc_ref;
/* {{{ register request cleanup hooks */
if (ctx->cleanup == NULL) {
cln = ngx_tcp_cleanup_add(s, 0);
if (cln == NULL) {
return NGX_ERROR;
}
cln->handler = ngx_tcp_lua_request_cleanup;
cln->data = s;
ctx->cleanup = &cln->handler;
}
/* }}} */
return ngx_tcp_lua_run_thread(L, s, ctx, 0);
}