# HG changeset patch # User Igor Sysoev # Date 1046290903 0 # Node ID 36d2c25cc9bb7117db6bb107756b7820eeb350f9 # Parent 8ccba41a678eeb6cd207d4afd62f31cc1e75eeb7 nginx-0.0.1-2003-02-26-23:21:43 import diff --git a/src/core/ngx_connection.h b/src/core/ngx_connection.h --- a/src/core/ngx_connection.h +++ b/src/core/ngx_connection.h @@ -79,4 +79,19 @@ EV_VNODE should notify by some si or stat if aged >= N seconds (big enough) #endif + +extern ngx_chain_t *(*ngx_write_chain_proc) + (ngx_connection_t *c, ngx_chain_t *in); + + +ngx_chain_t *ngx_write_chain(ngx_connection_t *c, ngx_chain_t *in, off_t flush); + + +/* TODO: move it to OS specific file */ +#if (__FreeBSD__) +ngx_chain_t *ngx_freebsd_write_chain(ngx_connection_t *c, ngx_chain_t *in); +ngx_chain_t *ngx_aio_write_chain(ngx_connection_t *c, ngx_chain_t *in); +#endif + + #endif /* _NGX_CONNECTION_H_INCLUDED_ */ diff --git a/src/core/ngx_write_chain.c b/src/core/ngx_write_chain.c --- a/src/core/ngx_write_chain.c +++ b/src/core/ngx_write_chain.c @@ -7,197 +7,44 @@ #include #include #include -#include -#include + -#include +ngx_chain_t *(*ngx_write_chain_proc)(ngx_connection_t *c, ngx_chain_t *in); ngx_chain_t *ngx_write_chain(ngx_connection_t *c, ngx_chain_t *in, off_t flush) { - int rc, i, last; - u_int flags; - char *prev; +#if (NGX_EVENT) + + return (*ngx_write_chain_proc)(c, in); + +#elif (NGX_EVENT_THREAD) + off_t sent; - ngx_iovec_t *iov; - ngx_array_t header, trailer; - ngx_hunk_t *file; - ngx_chain_t *ce; + ngx_chain_t *rc; - ch = in; - file = NULL; - last = 0; - - ngx_init_array(header, c->pool, 10, sizeof(ngx_iovec_t), NGX_CHAIN_ERROR); - ngx_init_array(trailer, c->pool, 10, sizeof(ngx_iovec_t), NGX_CHAIN_ERROR); + sent = flush - c->sent; do { - header.nelts = 0; - trailer.nelts = 0; - - if (ce->hunk->type & NGX_HUNK_IN_MEMORY) { - prev = NULL; - iov = NULL; - - /* create iovec and coalesce the neighbouring chain entries */ - while (ce && (ce->hunk->type & NGX_HUNK_IN_MEMORY)) - { - if (prev == ce->hunk->pos.mem) { - iov->ngx_iov_len += ce->hunk->last.mem - ce->hunk->pos.mem; + rc = (*ngx_write_chain_proc)(c, in); - } else { - ngx_test_null(iov, ngx_push_array(&header), - NGX_CHAIN_ERROR); - iov->ngx_iov_base = ce->hunk->pos.mem; - iov->ngx_iov_len = ce->hunk->last.mem - ce->hunk->pos.mem; - prev = ce->hunk->last.mem; - } - - if (ce->hunk->type & NGX_HUNK_LAST) { - last = 1; - } - - ce = ce->next; - } - } - - if (ce && (ce->hunk->type & NGX_HUNK_FILE)) { - file = ce->hunk; - ce = ce->next; - - if (ce->hunk->type & NGX_HUNK_LAST) { - last = 1; - } + if (rc == NGX_CHAIN_ERROR && rc == NULL) { + return rc; } -#if (HAVE_MAX_SENDFILE_IOVEC) - if (file && header->nelts > HAVE_MAX_SENDFILE_IOVEC) { - rc = ngx_sendv(c->fd, (ngx_iovec_t *) header->elts, header->nelts, - &sent); - } else { -#endif - if (ch && ch->hunk->type & NGX_HUNK_IN_MEMORY) { - prev = NULL; - iov = NULL; - - while (ch && (ch->hunk->type & NGX_HUNK_IN_MEMORY)) { + } while (c->thread && flush > c->sent - sent); - if (prev == ch->hunk->pos.mem) { - iov->ngx_iov_len += - ch->hunk->last.mem - ch->hunk->pos.mem; - - } else { - ngx_test_null(iov, ngx_push_array(trailer), - NGX_CHAIN_ERROR); - iov->ngx_iov_base = ch->hunk->pos.mem; - iov->ngx_iov_len = - ch->hunk->last.mem - ch->hunk->pos.mem; - prev = ch->hunk->last.mem; - } - - if (ch->hunk->type & NGX_HUNK_LAST) { - last = 1; - } +#else - ch = ch->next; - } - } + ngx_chain_t *rc; - if (file) { - flags = ngx_sendfile_flags; -#if (HAVE_SENDFILE_DISCONNECT) - if (last && c->close) { - flags |= NGX_SENDFILE_DISCONNECT; - } -#endif - rc = ngx_sendfile(c, - (ngx_iovec_t *) header->elts, header->nelts, - file->file->fd, file->pos.file, - (size_t) (file->last.file - file->pos.file), - (ngx_iovec_t *) trailer->elts, trailer->nelts, - &sent, flags); - -#if (HAVE_AIO_EVENT) && !(HAVE_IOCP_EVENT) - } else if (ngx_event_flags & NGX_HAVE_AIO_EVENT) { - - sent = 0; - rc = NGX_AGAIN; - iov = (ngx_iovec_t *) header->elts; - for (i = 0; i < header->nelts; i++) { - rc = ngx_event_aio_write(c, iov[i].ngx_iov_base, - iov[i].ngx_iov_len); - - if (rc > 0) { - sent += rc; - } else { - break; - } + do { - if (rc < (int) iov->ngx_iov_len) { - break; - } - } -#endif - } else { - rc = ngx_sendv(c, (ngx_iovec_t *) header->elts, header->nelts); - - sent = rc > 0 ? rc: 0; + rc = (*ngx_write_chain_proc)(c, in); -#if (NGX_DEBUG_EVENT_WRITE) - ngx_log_debug(c->log, "sendv: " OFF_FMT _ sent); -#endif - } -#if (HAVE_MAX_SENDFILE_IOVEC) - } -#endif - if (rc == NGX_ERROR) - return (ngx_chain_t *) NGX_ERROR; - - c->sent += sent; - flush -= sent; - - for (ch = in; ch; ch = ch->next) { - -#if (NGX_DEBUG_EVENT_WRITE) - ngx_log_debug(c->log, "event write: %x " QX_FMT " " OFF_FMT _ - ch->hunk->type _ - ch->hunk->pos.file _ - ch->hunk->last.file - ch->hunk->pos.file); -#endif + } while (rc != NGX_CHAIN_ERROR && rc != NULL); - if (sent >= ch->hunk->last.file - ch->hunk->pos.file) { - sent -= ch->hunk->last.file - ch->hunk->pos.file; - ch->hunk->pos.file = ch->hunk->last.file; - -#if (NGX_DEBUG_EVENT_WRITE) - ngx_log_debug(c->log, "event write: " QX_FMT " 0 " OFF_FMT _ - ch->hunk->pos.file _ sent); -#endif - -/* - if (ch->hunk->type & NGX_HUNK_LAST) - break; -*/ - - continue; - } + return rc; - ch->hunk->pos.file += sent; - -#if (NGX_DEBUG_EVENT_WRITE) - ngx_log_debug(c->log, "event write: " QX_FMT " " OFF_FMT _ - ch->hunk->pos.file _ - ch->hunk->last.file - ch->hunk->pos.file); #endif - - break; - } - - /* flush hunks if threaded state */ - } while (c->write->context && flush > 0); - - ngx_destroy_array(&trailer); - ngx_destroy_array(&header); - - return ch; } diff --git a/src/event/modules/ngx_aio_module.c b/src/event/modules/ngx_aio_module.c --- a/src/event/modules/ngx_aio_module.c +++ b/src/event/modules/ngx_aio_module.c @@ -1,4 +1,39 @@ +#include + +#include +#include +#include +#include +#include +#include + +#if (HAVE_KQUEUE) +#include +#endif + + +int ngx_aio_init(int max_connections, ngx_log_t *log) +{ +#if (HAVE_KQUEUE) + + int rc; + + rc = ngx_kqueue_init(max_connections, log); + + ngx_event_flags = NGX_HAVE_AIO_EVENT; + ngx_write_chain_proc = ngx_aio_write_chain; + + return rc; + +#endif +} + + + + + +#if 0 /* 1 */ int ngx_posix_aio_process_events(ngx_log_t *log) { @@ -47,4 +82,4 @@ void aio_sig_handler(int signo, siginfo_ { push siginfo->si_value.sival_ptr } - +#endif diff --git a/src/event/modules/ngx_aio_module.h b/src/event/modules/ngx_aio_module.h new file mode 100644 --- /dev/null +++ b/src/event/modules/ngx_aio_module.h @@ -0,0 +1,14 @@ +#ifndef _NGX_AIO_MODULE_H_INCLUDED_ +#define _NGX_AIO_MODULE_H_INCLUDED_ + + +#include +#include +#include + + +int ngx_aio_init(int max_connections, ngx_log_t *log); +int ngx_aio_process_events(ngx_log_t *log); + + +#endif /* _NGX_AIO_MODULE_H_INCLUDED_ */ diff --git a/src/event/modules/ngx_kqueue_module.c b/src/event/modules/ngx_kqueue_module.c --- a/src/event/modules/ngx_kqueue_module.c +++ b/src/event/modules/ngx_kqueue_module.c @@ -79,6 +79,8 @@ int ngx_kqueue_init(int max_connections, #endif |NGX_HAVE_KQUEUE_EVENT; + ngx_write_chain_proc = ngx_freebsd_write_chain; + #endif #endif diff --git a/src/event/ngx_event.c b/src/event/ngx_event.c --- a/src/event/ngx_event.c +++ b/src/event/ngx_event.c @@ -25,6 +25,10 @@ #include #endif +#if (HAVE_AIO) +#include +#endif + #if (HAVE_IOCP) #include #include @@ -54,6 +58,9 @@ static int (*ngx_event_init[]) (int max_ #if (HAVE_KQUEUE) ngx_kqueue_init, #endif +#if (HAVE_AIO) + ngx_aio_init, +#endif #if (HAVE_IOCP) ngx_iocp_init #endif @@ -83,6 +90,9 @@ void ngx_pre_thread(ngx_array_t *ls, ngx ngx_event_type = NGX_DEVPOLL_EVENT_N; #endif #if 0 + ngx_event_type = NGX_AIO_EVENT_N; +#endif +#if 0 ngx_event_type = NGX_IOCP_EVENT_N; #endif diff --git a/src/event/ngx_event.h b/src/event/ngx_event.h --- a/src/event/ngx_event.h +++ b/src/event/ngx_event.h @@ -116,6 +116,9 @@ typedef enum { #if (HAVE_KQUEUE) NGX_KQUEUE_EVENT_N, #endif +#if (HAVE_AIO) + NGX_AIO_EVENT_N, +#endif #if (HAVE_IOCP) NGX_IOCP_EVENT_N, #endif diff --git a/src/event/ngx_event_accept.c b/src/event/ngx_event_accept.c --- a/src/event/ngx_event_accept.c +++ b/src/event/ngx_event_accept.c @@ -156,6 +156,9 @@ int ngx_event_accept(ngx_event_t *ev) #elif (HAVE_KQUEUE) +/* + if (ngx_event_type == NGX_HAVE_AIO_EVENT or NGX_HAVE_KQUEUE_EVENT) { +*/ if (ngx_event_type == NGX_HAVE_KQUEUE_EVENT) { ev->available--; } diff --git a/src/event/ngx_event_aio_write.c b/src/event/ngx_event_aio_write.c --- a/src/event/ngx_event_aio_write.c +++ b/src/event/ngx_event_aio_write.c @@ -5,6 +5,7 @@ #include #include #include +#include #if (HAVE_KQUEUE) #include diff --git a/src/http/modules/ngx_http_static_handler.c b/src/http/modules/ngx_http_static_handler.c --- a/src/http/modules/ngx_http_static_handler.c +++ b/src/http/modules/ngx_http_static_handler.c @@ -141,7 +141,7 @@ int ngx_http_static_handler(ngx_http_req if (r->header_only) return rc; -#if 0 +#if 1 h->type = NGX_HUNK_FILE|NGX_HUNK_LAST; h->pos.file = 0; diff --git a/src/http/ngx_http_header_filter.c b/src/http/ngx_http_header_filter.c --- a/src/http/ngx_http_header_filter.c +++ b/src/http/ngx_http_header_filter.c @@ -95,7 +95,8 @@ static int ngx_http_header_filter(ngx_ht ngx_log_debug(r->connection->log, "%d %d" _ ims _ r->headers_out.last_modified_time); - if (ims != NGX_ERROR && ims >= r->headers_out.last_modified_time) { + /* I think that the date equality is correcter */ + if (ims != NGX_ERROR && ims == r->headers_out.last_modified_time) { r->headers_out.status = NGX_HTTP_NOT_MODIFIED; r->headers_out.content_length = -1; r->headers_out.content_type->key.len = 0; diff --git a/src/http/ngx_http_write_filter.c b/src/http/ngx_http_write_filter.c --- a/src/http/ngx_http_write_filter.c +++ b/src/http/ngx_http_write_filter.c @@ -4,6 +4,7 @@ #include #include #include +#include #include @@ -81,7 +82,7 @@ int ngx_http_write_filter(ngx_http_reque le = &ce->next; size += ce->hunk->last.file - ce->hunk->pos.file; -#if (NGX_DEBUG_WRITE_FILTER0) +#if (NGX_DEBUG_WRITE_FILTER) ngx_log_debug(r->connection->log, "write filter: old chunk: %x " QX_FMT " " QD_FMT _ ce->hunk->type _ ce->hunk->pos.file _ @@ -107,7 +108,7 @@ int ngx_http_write_filter(ngx_http_reque le = &ce->next; size += ce->hunk->last.file - ce->hunk->pos.file; -#if (NGX_DEBUG_WRITE_FILTER0) +#if (NGX_DEBUG_WRITE_FILTER) ngx_log_debug(r->connection->log, "write filter: new hunk: %x " QX_FMT " " QD_FMT _ ce->hunk->type _ ce->hunk->pos.file _ @@ -127,7 +128,7 @@ int ngx_http_write_filter(ngx_http_reque ngx_http_get_module_loc_conf(r->main ? r->main : r, ngx_http_write_filter_module); -#if (NGX_DEBUG_WRITE_FILTER0) +#if (NGX_DEBUG_WRITE_FILTER) ngx_log_debug(r->connection->log, "write filter: last:%d flush:%d" _ last _ flush); #endif @@ -138,7 +139,7 @@ int ngx_http_write_filter(ngx_http_reque return NGX_OK; } - chain = ngx_event_write(r->connection, ctx->out, flush); + chain = ngx_write_chain(r->connection, ctx->out, flush); #if (NGX_DEBUG_WRITE_FILTER) ngx_log_debug(r->connection->log, "write filter %x" _ chain); diff --git a/src/os/unix/ngx_aio_write_chain.c b/src/os/unix/ngx_aio_write_chain.c new file mode 100644 --- /dev/null +++ b/src/os/unix/ngx_aio_write_chain.c @@ -0,0 +1,92 @@ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + + +ngx_chain_t *ngx_aio_write_chain(ngx_connection_t *c, ngx_chain_t *in) +{ + int rc; + char *buf, *prev; + off_t sent; + size_t size; + ngx_err_t err; + ngx_chain_t *ce; + + sent = 0; + ce = in; + + while (ce) { + +ngx_log_debug(c->log, "aio_write ce: %x" _ ce->hunk->pos.mem); + + buf = prev = ce->hunk->pos.mem; + size = 0; + + /* coalesce the neighbouring chain entries */ + while (ce && prev == ce->hunk->pos.mem) { + size += ce->hunk->last.mem - ce->hunk->pos.mem; + prev = ce->hunk->last.mem; + ce = ce->next; + } + + rc = ngx_event_aio_write(c, buf, size); + +ngx_log_debug(c->log, "aio_write rc: %d" _ rc); + + if (rc > 0) { + sent += rc; + c->sent += rc; + + } else if (rc == NGX_ERROR) { + return NGX_CHAIN_ERROR; + + } else if (rc == NGX_AGAIN) { + break; + } + } + +#if (NGX_DEBUG_WRITE_CHAIN) + ngx_log_debug(c->log, "aio_write sent: " OFF_FMT _ c->sent); +#endif + + for (ce = in; ce; ce = ce->next) { + +#if (NGX_DEBUG_WRITE_CHAIN) + ngx_log_debug(c->log, "write chain: %x %qx %qd" _ + ce->hunk->type _ + ce->hunk->pos.file _ + ce->hunk->last.file - ce->hunk->pos.file); +#endif + + if (sent >= ce->hunk->last.file - ce->hunk->pos.file) { + sent -= ce->hunk->last.file - ce->hunk->pos.file; + ce->hunk->pos.file = ce->hunk->last.file; + +#if (NGX_DEBUG_WRITE_CHAIN) + ngx_log_debug(c->log, "write chain done: %qx %qd" _ + ce->hunk->pos.file _ sent); +#endif + continue; + } + + ce->hunk->pos.file += sent; + +#if (NGX_DEBUG_WRITE_CHAIN) + ngx_log_debug(c->log, "write chain rest: %qx %qd" _ + ce->hunk->pos.file _ + ce->hunk->last.file - ce->hunk->pos.file); +#endif + + break; + } + + return ce; +} diff --git a/src/os/unix/ngx_freebsd_write_chain.c b/src/os/unix/ngx_freebsd_write_chain.c new file mode 100644 --- /dev/null +++ b/src/os/unix/ngx_freebsd_write_chain.c @@ -0,0 +1,178 @@ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include + + +ngx_chain_t *ngx_freebsd_write_chain(ngx_connection_t *c, ngx_chain_t *in) +{ + int rc; + char *prev; + size_t hsize; + off_t sent; + struct iovec *iov; + struct sf_hdtr hdtr; + ngx_err_t err; + ngx_array_t header, trailer; + ngx_hunk_t *file; + ngx_chain_t *ce; + + ce = in; + file = NULL; + hsize = 0; + + ngx_init_array(header, c->pool, 10, sizeof(struct iovec), NGX_CHAIN_ERROR); + ngx_init_array(trailer, c->pool, 10, sizeof(struct iovec), NGX_CHAIN_ERROR); + + /* create the header iovec */ + if (ce->hunk->type & NGX_HUNK_IN_MEMORY) { + prev = NULL; + iov = NULL; + + /* create the iovec and coalesce the neighbouring chain entries */ + while (ce && (ce->hunk->type & NGX_HUNK_IN_MEMORY)) + { + if (prev == ce->hunk->pos.mem) { + iov->iov_len += ce->hunk->last.mem - ce->hunk->pos.mem; + prev = ce->hunk->last.mem; + + } else { + ngx_test_null(iov, ngx_push_array(&header), NGX_CHAIN_ERROR); + iov->iov_base = ce->hunk->pos.mem; + iov->iov_len = ce->hunk->last.mem - ce->hunk->pos.mem; + prev = ce->hunk->last.mem; + } + +#if (HAVE_FREEBSD_SENDFILE_NBYTES_BUG) + hsize += ce->hunk->last.mem - ce->hunk->pos.mem; +#endif + ce = ce->next; + } + } + + /* TODO: coalesce the neighbouring shadow file hunks */ + if (ce && (ce->hunk->type & NGX_HUNK_FILE)) { + file = ce->hunk; + ce = ce->next; + } + + /* create the trailer iovec */ + if (ce && ce->hunk->type & NGX_HUNK_IN_MEMORY) { + prev = NULL; + iov = NULL; + + /* create the iovec and coalesce the neighbouring chain entries */ + while (ce && (ce->hunk->type & NGX_HUNK_IN_MEMORY)) { + + if (prev == ce->hunk->pos.mem) { + iov->iov_len += ce->hunk->last.mem - ce->hunk->pos.mem; + prev = ce->hunk->last.mem; + + } else { + ngx_test_null(iov, ngx_push_array(&trailer), NGX_CHAIN_ERROR); + iov->iov_base = ce->hunk->pos.mem; + iov->iov_len = ce->hunk->last.mem - ce->hunk->pos.mem; + prev = ce->hunk->last.mem; + } + + ce = ce->next; + } + } + + if (file) { + hdtr.headers = (struct iovec *) header.elts; + hdtr.hdr_cnt = header.nelts; + hdtr.trailers = (struct iovec *) trailer.elts; + hdtr.trl_cnt = trailer.nelts; + + rc = sendfile(file->file->fd, c->fd, file->pos.file, + (size_t) (file->last.file - file->pos.file) + hsize, + &hdtr, &sent, 0); + + if (rc == -1) { + err = ngx_errno; + if (err == NGX_EAGAIN || err == NGX_EINTR) { + ngx_log_error(NGX_LOG_INFO, c->log, err, + "sendfile() sent only %qd bytes", sent); + + } else { + ngx_log_error(NGX_LOG_CRIT, c->log, err, "sendfile() failed"); + return NGX_CHAIN_ERROR; + } + } + +#if (NGX_DEBUG_WRITE_CHAIN) + ngx_log_debug(c->log, "sendfile: %d, @%qd %qd:%d" _ + rc _ file->pos.file _ *sent _ + (size_t) (file->last.file - file->pos.file) + hsize); +#endif + + } else { + rc = writev(c->fd, (struct iovec *) header.elts, header.nelts); + + if (rc == -1) { + err = ngx_errno; + if (err == NGX_EAGAIN) { + ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EAGAIN"); + + } else if (err == NGX_EINTR) { + ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EINTR"); + + } else { + ngx_log_error(NGX_LOG_CRIT, c->log, err, "writev() failed"); + return NGX_CHAIN_ERROR; + } + } + + sent = rc > 0 ? rc : 0; + } + +#if (NGX_DEBUG_WRITE_CHAIN) + ngx_log_debug(c->log, "sendv: %qd" _ sent); +#endif + + c->sent += sent; + + for (ce = in; ce; ce = ce->next) { + +#if (NGX_DEBUG_WRITE_CHAIN) + ngx_log_debug(c->log, "write chain: %x %qx %qd" _ + ce->hunk->type _ + ce->hunk->pos.file _ + ce->hunk->last.file - ce->hunk->pos.file); +#endif + + if (sent >= ce->hunk->last.file - ce->hunk->pos.file) { + sent -= ce->hunk->last.file - ce->hunk->pos.file; + ce->hunk->pos.file = ce->hunk->last.file; + +#if (NGX_DEBUG_WRITE_CHAIN) + ngx_log_debug(c->log, "write chain done: %qx %qd" _ + ce->hunk->pos.file _ sent); +#endif + continue; + } + + ce->hunk->pos.file += sent; + +#if (NGX_DEBUG_WRITE_CHAIN) + ngx_log_debug(c->log, "write chain rest: %qx %qd" _ + ce->hunk->pos.file _ + ce->hunk->last.file - ce->hunk->pos.file); +#endif + + break; + } + + ngx_destroy_array(&trailer); + ngx_destroy_array(&header); + + return ce; +}