Mercurial > hg > nginx-quic
diff src/event/modules/ngx_devpoll_module.c @ 115:be27f922b9a2
nginx-0.0.1-2003-07-10-20:26:57 import
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Thu, 10 Jul 2003 16:26:57 +0000 |
parents | ac69ab96328d |
children | 571bcbff82c5 |
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--- a/src/event/modules/ngx_devpoll_module.c +++ b/src/event/modules/ngx_devpoll_module.c @@ -6,7 +6,6 @@ #include <ngx_config.h> #include <ngx_core.h> -#include <ngx_connection.h> #include <ngx_event.h> @@ -32,19 +31,15 @@ typedef struct { } 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_init(ngx_cycle_t *cycle); +static void ngx_devpoll_done(ngx_cycle_t *cycle); 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 +static void *ngx_devpoll_create_conf(ngx_cycle_t *cycle); +static char *ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf); static int dp; static struct pollfd *change_list, *event_list; @@ -104,61 +99,107 @@ ngx_module_t ngx_devpoll_module = { }; -static int ngx_devpoll_init(ngx_log_t *log) +static int ngx_devpoll_init(ngx_cycle_t *cycle) { + int n; ngx_devpoll_conf_t *dpcf; - dpcf = ngx_event_get_conf(ngx_devpoll_module); + dpcf = ngx_event_get_conf(cycle->conf_ctx, ngx_devpoll_module); + +ngx_log_debug(cycle->log, "CH: %d" _ dpcf->changes); +ngx_log_debug(cycle->log, "EV: %d" _ dpcf->events); + + if (dp == -1) { + dp = open("/dev/poll", O_RDWR); + + if (dp == -1) { + ngx_log_error(NGX_LOG_EMERG, cycle->log, ngx_errno, + "open(/dev/poll) failed"); + return NGX_ERROR; + } + } -ngx_log_debug(log, "CH: %d" _ dpcf->changes); -ngx_log_debug(log, "EV: %d" _ dpcf->events); + if (max_changes < dpcf->changes) { + if (nchanges) { + n = nchanges * sizeof(struct pollfd); + if (write(dp, change_list, n) != n) { + ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, + "write(/dev/poll) failed"); + return NGX_ERROR; + } + + nchanges = 0; + } + + if (change_list) { + ngx_free(change_list); + } + + ngx_test_null(change_list, + ngx_alloc(sizeof(struct pollfd) * dpcf->changes, + cycle->log), + NGX_ERROR); + + if (change_index) { + ngx_free(change_index); + } + + ngx_test_null(change_index, + ngx_alloc(sizeof(ngx_event_t *) * dpcf->changes, + cycle->log), + NGX_ERROR); + } max_changes = dpcf->changes; - nevents = dpcf->events; - nchanges = 0; + + if (nevents < dpcf->events) { + if (event_list) { + ngx_free(event_list); + } - dp = open("/dev/poll", O_RDWR); + ngx_test_null(event_list, + ngx_alloc(sizeof(struct pollfd) * dpcf->events, + cycle->log), + NGX_ERROR); + } - if (dp == -1) { - ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "open(/dev/poll) failed"); + nevents = dpcf->events; + + if (ngx_event_timer_init(cycle) == NGX_ERROR) { return NGX_ERROR; } - ngx_test_null(change_list, - ngx_alloc(sizeof(struct pollfd) * dpcf->changes, log), - NGX_ERROR); - - 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; - } + ngx_io = ngx_os_io; ngx_event_actions = ngx_devpoll_module_ctx.actions; + ngx_event_flags = NGX_HAVE_LEVEL_EVENT|NGX_USE_LEVEL_EVENT; return NGX_OK; } -static void ngx_devpoll_done(ngx_log_t *log) +static void ngx_devpoll_done(ngx_cycle_t *cycle) { if (close(dp) == -1) { - ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "close(/dev/poll) failed"); + ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_errno, + "close(/dev/poll) failed"); } - ngx_event_timer_done(log); + dp = -1; + + ngx_event_timer_done(cycle); ngx_free(change_list); ngx_free(event_list); ngx_free(change_index); + change_list = NULL; + event_list = NULL; + change_index = NULL; + max_changes = 0; + nchanges = 0; + nevents = 0; } @@ -280,12 +321,13 @@ static int ngx_devpoll_set_event(ngx_eve int ngx_devpoll_process_events(ngx_log_t *log) { - int events, n, i; - ngx_msec_t timer, delta; - ngx_err_t err; - ngx_connection_t *c; - struct dvpoll dvp; - struct timeval tv; + int events, n, i; + ngx_msec_t timer, delta; + ngx_err_t err; + ngx_cycle_t **cycle; + ngx_connection_t *c; + struct dvpoll dvp; + struct timeval tv; timer = ngx_event_find_timer(); @@ -351,6 +393,25 @@ int ngx_devpoll_process_events(ngx_log_t } for (i = 0; i < events; i++) { + c = &ngx_cycle->connections[event_list[i].fd]; + + if (c->fd == -1) { + cycle = ngx_old_cycles.elts; + for (i = 0; i < ngx_old_cycles.nelts; i++) { + if (cycle[i] == NULL) { + continue; + } + c = &cycle[i]->connections[event_list[i].fd]; + if (c->fd != -1) { + break; + } + } + } + + if (c->fd == -1) { + ngx_log_error(NGX_LOG_ALERT, log, 0, "unkonwn cycle"); + exit(1); + } #if (NGX_DEBUG_EVENT) ngx_log_debug(log, "devpoll: %d: ev:%d rev:%d" _ @@ -358,8 +419,6 @@ int ngx_devpoll_process_events(ngx_log_t event_list[i].events _ event_list[i].revents); #endif - c = &ngx_connections[event_list[i].fd]; - if (event_list[i].revents & POLLIN) { if (!c->read->active) { continue; @@ -394,11 +453,11 @@ int ngx_devpoll_process_events(ngx_log_t } -static void *ngx_devpoll_create_conf(ngx_pool_t *pool) +static void *ngx_devpoll_create_conf(ngx_cycle_t *cycle) { ngx_devpoll_conf_t *dpcf; - ngx_test_null(dpcf, ngx_palloc(pool, sizeof(ngx_devpoll_conf_t)), + ngx_test_null(dpcf, ngx_palloc(cycle->pool, sizeof(ngx_devpoll_conf_t)), NGX_CONF_ERROR); dpcf->changes = NGX_CONF_UNSET; @@ -408,7 +467,7 @@ static void *ngx_devpoll_create_conf(ngx } -static char *ngx_devpoll_init_conf(ngx_pool_t *pool, void *conf) +static char *ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf) { ngx_devpoll_conf_t *dpcf = conf;