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/*
* !!! DO NOT EDIT DIRECTLY !!!
* This file was automatically generated from the following template:
*
* src/subsys/ngx_subsys_lua_sleep.c.tt2
*/
/*
* Copyright (C) Xiaozhe Wang (chaoslawful)
* Copyright (C) Yichun Zhang (agentzh)
*/
#ifndef DDEBUG
#define DDEBUG 0
#endif
#include "ddebug.h"
#include "ngx_stream_lua_util.h"
#include "ngx_stream_lua_sleep.h"
#include "ngx_stream_lua_contentby.h"
static int ngx_stream_lua_ngx_sleep(lua_State *L);
static void ngx_stream_lua_sleep_handler(ngx_event_t *ev);
static void ngx_stream_lua_sleep_cleanup(void *data);
static ngx_int_t ngx_stream_lua_sleep_resume(ngx_stream_lua_request_t *r);
static int
ngx_stream_lua_ngx_sleep(lua_State *L)
{
int n;
ngx_int_t delay; /* in msec */
ngx_stream_lua_request_t *r;
ngx_stream_lua_ctx_t *ctx;
ngx_stream_lua_co_ctx_t *coctx;
n = lua_gettop(L);
if (n != 1) {
return luaL_error(L, "attempt to pass %d arguments, but accepted 1", n);
}
r = ngx_stream_lua_get_req(L);
if (r == NULL) {
return luaL_error(L, "no request found");
}
delay = (ngx_int_t) (luaL_checknumber(L, 1) * 1000);
if (delay < 0) {
return luaL_error(L, "invalid sleep duration \"%d\"", delay);
}
ctx = ngx_stream_lua_get_module_ctx(r, ngx_stream_lua_module);
if (ctx == NULL) {
return luaL_error(L, "no request ctx found");
}
ngx_stream_lua_check_context(L, ctx, NGX_STREAM_LUA_CONTEXT_YIELDABLE);
coctx = ctx->cur_co_ctx;
if (coctx == NULL) {
return luaL_error(L, "no co ctx found");
}
ngx_stream_lua_cleanup_pending_operation(coctx);
coctx->cleanup = ngx_stream_lua_sleep_cleanup;
coctx->data = r;
coctx->sleep.handler = ngx_stream_lua_sleep_handler;
coctx->sleep.data = coctx;
coctx->sleep.log = r->connection->log;
if (delay == 0) {
#ifdef HAVE_POSTED_DELAYED_EVENTS_PATCH
dd("posting 0 sec sleep event to head of delayed queue");
coctx->sleep.delayed = 1;
ngx_post_event(&coctx->sleep, &ngx_posted_delayed_events);
#else
ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, "ngx.sleep(0)"
" called without delayed events patch, this will"
" hurt performance");
ngx_add_timer(&coctx->sleep, (ngx_msec_t) delay);
#endif
} else {
dd("adding timer with delay %lu ms, r:%p", (unsigned long) delay, r);
ngx_add_timer(&coctx->sleep, (ngx_msec_t) delay);
}
ngx_log_debug1(NGX_LOG_DEBUG_STREAM, r->connection->log, 0,
"lua ready to sleep for %d ms", delay);
return lua_yield(L, 0);
}
void
ngx_stream_lua_sleep_handler(ngx_event_t *ev)
{
#if (NGX_DEBUG)
ngx_connection_t *c;
#endif
ngx_stream_lua_request_t *r;
ngx_stream_lua_ctx_t *ctx;
ngx_stream_lua_co_ctx_t *coctx;
coctx = ev->data;
r = coctx->data;
#if (NGX_DEBUG)
c = r->connection;
#endif
ctx = ngx_stream_lua_get_module_ctx(r, ngx_stream_lua_module);
if (ctx == NULL) {
return;
}
coctx->cleanup = NULL;
ngx_log_debug0(NGX_LOG_DEBUG_STREAM, c->log, 0,
"stream lua sleep timer expired");
ctx->cur_co_ctx = coctx;
if (ctx->entered_content_phase) {
(void) ngx_stream_lua_sleep_resume(r);
} else {
ctx->resume_handler = ngx_stream_lua_sleep_resume;
ngx_stream_lua_core_run_phases(r);
}
}
void
ngx_stream_lua_inject_sleep_api(lua_State *L)
{
lua_pushcfunction(L, ngx_stream_lua_ngx_sleep);
lua_setfield(L, -2, "sleep");
}
static void
ngx_stream_lua_sleep_cleanup(void *data)
{
ngx_stream_lua_co_ctx_t *coctx = data;
if (coctx->sleep.timer_set) {
ngx_log_debug0(NGX_LOG_DEBUG_STREAM, ngx_cycle->log, 0,
"lua clean up the timer for pending ngx.sleep");
ngx_del_timer(&coctx->sleep);
}
#ifdef HAVE_POSTED_DELAYED_EVENTS_PATCH
if (coctx->sleep.posted) {
ngx_log_debug0(NGX_LOG_DEBUG_STREAM, ngx_cycle->log, 0,
"lua clean up the posted event for pending ngx.sleep");
ngx_delete_posted_event(&coctx->sleep);
}
#endif
}
static ngx_int_t
ngx_stream_lua_sleep_resume(ngx_stream_lua_request_t *r)
{
lua_State *vm;
ngx_connection_t *c;
ngx_int_t rc;
ngx_uint_t nreqs;
ngx_stream_lua_ctx_t *ctx;
ctx = ngx_stream_lua_get_module_ctx(r, ngx_stream_lua_module);
if (ctx == NULL) {
return NGX_ERROR;
}
ctx->resume_handler = ngx_stream_lua_wev_handler;
c = r->connection;
vm = ngx_stream_lua_get_lua_vm(r, ctx);
nreqs = c->requests;
rc = ngx_stream_lua_run_thread(vm, r, ctx, 0);
ngx_log_debug1(NGX_LOG_DEBUG_STREAM, r->connection->log, 0,
"lua run thread returned %d", rc);
if (rc == NGX_AGAIN) {
return ngx_stream_lua_run_posted_threads(c, vm, r, ctx, nreqs);
}
if (rc == NGX_DONE) {
ngx_stream_lua_finalize_request(r, NGX_DONE);
return ngx_stream_lua_run_posted_threads(c, vm, r, ctx, nreqs);
}
if (ctx->entered_content_phase) {
ngx_stream_lua_finalize_request(r, rc);
return NGX_DONE;
}
return rc;
}
/* vi:set ft=c ts=4 sw=4 et fdm=marker: */
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