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nginx-0.0.1-2003-05-20-19:37:55 import

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This commit is contained in:
Igor Sysoev
2003-05-20 15:37:55 +00:00
parent a98301160d
commit 1c13c662f0
31 changed files with 536 additions and 213 deletions
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202
src/event/modules/ngx_devpoll_module.c
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@@ -1,47 +1,122 @@
/*
* Copyright (C) 2002 Igor Sysoev, http://sysoev.ru
* Copyright (C) 2002-2003 Igor Sysoev, http://sysoev.ru
*/
#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_types.h>
#include <ngx_log.h>
#include <ngx_connection.h>
#include <ngx_event.h>
#include <ngx_event_timer.h>
#include <ngx_devpoll_module.h>
#if (USE_DEVPOLL) && !(HAVE_DEVPOLL)
#error "/dev/poll is not supported on this platform"
#if (TEST_DEVPOLL)
/* Solaris declarations */
#define POLLREMOVE 0x0800
#define DP_POLL 0xD001
struct dvpoll {
struct pollfd *dp_fds;
int dp_nfds;
int dp_timeout;
};
#endif
typedef struct {
int changes;
int events;
} ngx_devpoll_conf_t;
static int ngx_devpoll_init(ngx_log_t *log);
static void ngx_devpoll_done(ngx_log_t *log);
static int ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags);
static int ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags);
static int ngx_devpoll_set_event(ngx_event_t *ev, int event, u_int flags);
static int ngx_devpoll_process_events(ngx_log_t *log);
static void *ngx_devpoll_create_conf(ngx_pool_t *pool);
static char *ngx_devpoll_init_conf(ngx_pool_t *pool, void *conf);
/* STUB */
#define DEVPOLL_NCHANGES 512
#define DEVPOLL_NEVENTS 512
/* should be per-thread */
static int dp;
static struct pollfd *change_list, *event_list;
static unsigned int nchanges;
static u_int nchanges, max_changes;
static int nevents;
static ngx_event_t **change_index;
static ngx_event_t *timer_queue;
/* */
static ngx_str_t devpoll_name = ngx_string("/dev/poll");
static ngx_command_t ngx_devpoll_commands[] = {
{ngx_string("devpoll_changes"),
NGX_EVENT_CONF|NGX_CONF_TAKE1,
ngx_conf_set_num_slot,
0,
offsetof(ngx_devpoll_conf_t, changes),
NULL},
{ngx_string("devpoll_events"),
NGX_EVENT_CONF|NGX_CONF_TAKE1,
ngx_conf_set_num_slot,
0,
offsetof(ngx_devpoll_conf_t, events),
NULL},
{ngx_string(""), 0, NULL, 0, 0, NULL}
};
int ngx_devpoll_init(int max_connections, ngx_log_t *log)
ngx_event_module_t ngx_devpoll_module_ctx = {
NGX_EVENT_MODULE,
&devpoll_name,
ngx_devpoll_create_conf, /* create configuration */
ngx_devpoll_init_conf, /* init configuration */
{
ngx_devpoll_add_event, /* add an event */
ngx_devpoll_del_event, /* delete an event */
ngx_devpoll_add_event, /* enable an event */
ngx_devpoll_del_event, /* disable an event */
NULL, /* add an connection */
NULL, /* delete an connection */
ngx_devpoll_process_events, /* process the events */
ngx_devpoll_init, /* init the events */
ngx_devpoll_done, /* done the events */
}
};
ngx_module_t ngx_devpoll_module = {
&ngx_devpoll_module_ctx, /* module context */
0, /* module index */
ngx_devpoll_commands, /* module directives */
NGX_EVENT_MODULE_TYPE, /* module type */
NULL /* init module */
};
static int ngx_devpoll_init(ngx_log_t *log)
{
int change_size, event_size;
ngx_devpoll_conf_t *dpcf;
nevents = DEVPOLL_NEVENTS;
dpcf = ngx_event_get_conf(ngx_devpoll_module_ctx);
ngx_log_debug(log, "CH: %d" _ dpcf->changes);
ngx_log_debug(log, "EV: %d" _ dpcf->events);
max_changes = dpcf->changes;
nevents = dpcf->events;
nchanges = 0;
change_size = sizeof(struct pollfd) * DEVPOLL_NCHANGES;
event_size = sizeof(struct pollfd) * DEVPOLL_NEVENTS;
dp = open("/dev/poll", O_RDWR);
@@ -50,29 +125,45 @@ int ngx_devpoll_init(int max_connections, ngx_log_t *log)
return NGX_ERROR;
}
ngx_test_null(change_list, ngx_alloc(change_size, log), NGX_ERROR);
ngx_test_null(event_list, ngx_alloc(event_size, log), NGX_ERROR);
ngx_test_null(change_index,
ngx_alloc(sizeof(ngx_event_t *) * DEVPOLL_NCHANGES, log),
ngx_test_null(change_list,
ngx_alloc(sizeof(struct pollfd) * dpcf->changes, log),
NGX_ERROR);
timer_queue = ngx_event_init_timer(log);
if (timer_queue == NULL) {
ngx_test_null(event_list,
ngx_alloc(sizeof(struct pollfd) * dpcf->events, log),
NGX_ERROR);
ngx_test_null(change_index,
ngx_alloc(sizeof(ngx_event_t *) * dpcf->changes, log),
NGX_ERROR);
if (ngx_event_timer_init(log) == NGX_ERROR) {
return NGX_ERROR;
}
#if !(USE_DEVPOLL)
ngx_event_actions.add = ngx_devpoll_add_event;
ngx_event_actions.del = ngx_devpoll_del_event;
ngx_event_actions.timer = ngx_event_add_timer;
ngx_event_actions.process = ngx_devpoll_process_events;
#endif
ngx_event_actions = ngx_devpoll_module_ctx.actions;
ngx_event_flags = NGX_HAVE_LEVEL_EVENT|NGX_USE_LEVEL_EVENT;
return NGX_OK;
}
int ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags)
static void ngx_devpoll_done(ngx_log_t *log)
{
if (close(dp) == -1) {
ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "close(/dev/poll) failed");
}
ngx_event_timer_done(log);
ngx_free(change_list);
ngx_free(event_list);
ngx_free(change_index);
}
static int ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags)
{
#if (NGX_DEBUG_EVENT)
ngx_connection_t *c = (ngx_connection_t *) ev->data;
@@ -94,13 +185,11 @@ int ngx_devpoll_add_event(ngx_event_t *ev, int event, u_int flags)
#endif
ev->active = 1;
ev->oneshot = (flags & NGX_ONESHOT_EVENT) ? 1: 0;
return ngx_devpoll_set_event(ev, event, 0);
}
int ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags)
static int ngx_devpoll_del_event(ngx_event_t *ev, int event, u_int flags)
{
ngx_event_t *e;
@@ -143,14 +232,14 @@ static int ngx_devpoll_set_event(ngx_event_t *ev, int event, u_int flags)
int n;
ngx_connection_t *c;
c = (ngx_connection_t *) ev->data;
c = ev->data;
#if (NGX_DEBUG_EVENT)
ngx_log_debug(ev->log, "devpoll fd:%d event:%d flush:%d" _
c->fd _ event _ flags);
#endif
if (nchanges >= DEVPOLL_NCHANGES) {
if (nchanges >= max_changes) {
ngx_log_error(NGX_LOG_WARN, ev->log, 0,
"/dev/pool change list is filled up");
@@ -266,15 +355,7 @@ int ngx_devpoll_process_events(ngx_log_t *log)
}
c->read->ready = 1;
if (c->read->oneshot) {
ngx_del_timer(c->read);
ngx_devpoll_del_event(c->read, NGX_READ_EVENT, 0);
}
if (c->read->event_handler(c->read) == NGX_ERROR) {
c->read->close_handler(c->read);
}
c->read->event_handler(c->read);
}
if (event_list[i].revents & POLLOUT) {
@@ -283,15 +364,7 @@ int ngx_devpoll_process_events(ngx_log_t *log)
}
c->write->ready = 1;
if (c->write->oneshot) {
ngx_del_timer(c->write);
ngx_devpoll_del_event(c->write, NGX_WRITE_EVENT, 0);
}
if (c->write->event_handler(c->write) == NGX_ERROR) {
c->write->close_handler(c->write);
}
c->write->event_handler(c->write);
}
if (event_list[i].revents & (POLLERR|POLLHUP|POLLNVAL)) {
@@ -308,3 +381,28 @@ int ngx_devpoll_process_events(ngx_log_t *log)
return NGX_OK;
}
static void *ngx_devpoll_create_conf(ngx_pool_t *pool)
{
ngx_devpoll_conf_t *dpcf;
ngx_test_null(dpcf, ngx_palloc(pool, sizeof(ngx_devpoll_conf_t)),
NGX_CONF_ERROR);
dpcf->changes = NGX_CONF_UNSET;
dpcf->events = NGX_CONF_UNSET;
return dpcf;
}
static char *ngx_devpoll_init_conf(ngx_pool_t *pool, void *conf)
{
ngx_devpoll_conf_t *dpcf = conf;
ngx_conf_init_value(dpcf->changes, 512);
ngx_conf_init_value(dpcf->events, 512);
return NGX_CONF_OK;
}