Mercurial > hg > nginx-quic
view src/event/ngx_event_write.c @ 1:d220029ac7f3
nginx-0.0.1-2002-08-15-21:20:26 import
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Thu, 15 Aug 2002 17:20:26 +0000 |
parents | 4eff17414a43 |
children | 34a521b1a148 |
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#include <ngx_config.h> #include <ngx_types.h> #include <ngx_alloc.h> #include <ngx_array.h> #include <ngx_hunk.h> #include <ngx_connection.h> #include <ngx_sendv.h> #include <ngx_sendfile.h> #include <ngx_event_write.h> ngx_chain_t *ngx_event_write(ngx_connection_t *cn, ngx_chain_t *in, off_t flush) { int rc; char *last; off_t sent; ngx_iovec_t *iov; ngx_array_t *header, *trailer; ngx_hunk_t *file; ngx_chain_t *ch; ch = in; file = NULL; ngx_test_null(header, ngx_create_array(cn->pool, 10, sizeof(ngx_iovec_t)), (ngx_chain_t *) -1); ngx_test_null(trailer, ngx_create_array(cn->pool, 10, sizeof(ngx_iovec_t)), (ngx_chain_t *) -1); do { header->nelts = 0; trailer->nelts = 0; if (ch->hunk->type & NGX_HUNK_IN_MEMORY) { last = NULL; iov = NULL; while (ch && (ch->hunk->type & NGX_HUNK_IN_MEMORY)) { if (last == ch->hunk->pos.mem) { iov->ngx_iov_len += ch->hunk->last.mem - ch->hunk->pos.mem; } else { ngx_test_null(iov, ngx_push_array(header), (ngx_chain_t *) -1); iov->ngx_iov_base = ch->hunk->pos.mem; iov->ngx_iov_len = ch->hunk->last.mem - ch->hunk->pos.mem; last = ch->hunk->last.mem; } ch = ch->next; } } if (ch && (ch->hunk->type & NGX_HUNK_FILE)) { file = ch->hunk; ch = ch->next; } #if (HAVE_MAX_SENDFILE_IOVEC) if (file && header->nelts > HAVE_MAX_SENDFILE_IOVEC) { rc = ngx_sendv(cn->fd, (ngx_iovec_t *) header->elts, header->nelts, &sent); } else { #endif if (ch && ch->hunk->type & NGX_HUNK_IN_MEMORY) { last = NULL; iov = NULL; while (ch && (ch->hunk->type & NGX_HUNK_IN_MEMORY)) { if (last == 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_t *) -1); iov->ngx_iov_base = ch->hunk->pos.mem; iov->ngx_iov_len = ch->hunk->last.mem - ch->hunk->pos.mem; last = ch->hunk->last.mem; } ch = ch->next; } } if (file) { rc = ngx_sendfile(cn->fd, (ngx_iovec_t *) header->elts, header->nelts, file->fd, file->pos.file, (size_t) (file->last.file - file->pos.file), (ngx_iovec_t *) trailer->elts, trailer->nelts, &sent, cn->log); } else { rc = ngx_sendv(cn->fd, (ngx_iovec_t *) header->elts, header->nelts, (size_t *) &sent); } #if (HAVE_MAX_SENDFILE_IOVEC) } #endif /* save sent for logging */ if (rc == -1) return (ngx_chain_t *) -1; flush -= sent; for (ch = in; ch && !(ch->hunk->type & NGX_HUNK_LAST); ch = ch->next) { if (sent >= ch->hunk->last.file - ch->hunk->pos.file) { sent -= ch->hunk->last.file - ch->hunk->pos.file; ch->hunk->last.file = ch->hunk->pos.file; continue; } ch->hunk->pos.file += sent; break; } /* flush hunks if threaded state */ } while (cn->write->context && flush > 0); ngx_destroy_array(trailer); ngx_destroy_array(header); return ch; }