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nginx-0.0.7-2004-06-21-19:59:32 import

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This commit is contained in:
Igor Sysoev 2004-06-21 15:59:32 +00:00
parent 73a73b5a60
commit ef06648615
19 changed files with 296 additions and 170 deletions
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1
src/core/ngx_buf.h
View File

@ -127,6 +127,7 @@ typedef struct {
ngx_chain_t **last;
ngx_connection_t *connection;
ngx_pool_t *pool;
off_t limit;
} ngx_chain_writer_ctx_t;

2
src/core/ngx_output_chain.c
View File

@ -274,7 +274,7 @@ ngx_int_t ngx_chain_writer(void *data, ngx_chain_t *in)
ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->connection->log, 0,
"WRITER0: %X", ctx->out);
ctx->out = ngx_write_chain(ctx->connection, ctx->out);
ctx->out = ngx_write_chain(ctx->connection, ctx->out, ctx->limit);
ngx_log_debug1(NGX_LOG_DEBUG_CORE, ctx->connection->log, 0,
"WRITER1: %X", ctx->out);

2
src/event/ngx_event.h
View File

@ -91,6 +91,8 @@ struct ngx_event_s {
unsigned short timedout:1;
unsigned short timer_set:1;
unsigned short delayed:1;
unsigned short read_discarded:1;
unsigned short unexpected_eof:1;

1
src/http/modules/proxy/ngx_http_proxy_upstream.c
View File

@ -605,6 +605,7 @@ static void ngx_http_proxy_connect(ngx_http_proxy_ctx_t *p)
writer->out = NULL;
writer->last = &writer->out;
writer->connection = c;
writer->limit = OFF_T_MAX_VALUE;
if (p->upstream->peer.tries > 1 && p->request_sent) {
ngx_http_proxy_reinit_upstream(p);

2
src/http/ngx_http_core_module.h
View File

@ -125,9 +125,9 @@ typedef struct {
ngx_str_t default_type;
size_t client_max_body_size; /* client_max_body_size */
size_t send_lowat; /* send_lowat */
size_t discarded_buffer_size; /* discarded_buffer_size */
size_t client_body_buffer_size; /* client_body_buffer_size */
size_t send_lowat; /* send_lowat */
ngx_msec_t client_body_timeout; /* client_body_timeout */
ngx_msec_t send_timeout; /* send_timeout */

22
src/http/ngx_http_request.c
View File

@ -1050,13 +1050,13 @@ static void ngx_http_set_write_handler(ngx_http_request_t *r)
wev = r->connection->write;
wev->event_handler = ngx_http_writer;
if (wev->ready && r->delayed) {
if (wev->ready && wev->delayed) {
return;
}
clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
ngx_http_core_module);
if (!r->delayed) {
if (!wev->delayed) {
ngx_add_timer(wev, clcf->send_timeout);
}
@ -1083,13 +1083,13 @@ void ngx_http_writer(ngx_event_t *wev)
r = c->data;
if (wev->timedout) {
if (!r->delayed) {
if (!wev->delayed) {
ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
return;
}
wev->timedout = 0;
r->delayed = 0;
wev->delayed = 0;
if (!wev->ready) {
clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
@ -1107,9 +1107,19 @@ void ngx_http_writer(ngx_event_t *wev)
}
} else {
if (r->delayed) {
if (wev->delayed) {
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
"http writer delayed");
clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
ngx_http_core_module);
wev->available = clcf->send_lowat;
if (ngx_handle_write_event(wev, NGX_LOWAT_EVENT) == NGX_ERROR) {
ngx_http_close_request(r, 0);
ngx_http_close_connection(r->connection);
}
return;
}
}
@ -1122,7 +1132,7 @@ void ngx_http_writer(ngx_event_t *wev)
if (rc == NGX_AGAIN) {
clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
ngx_http_core_module);
if (!wev->ready && !r->delayed) {
if (!wev->ready && !wev->delayed) {
ngx_add_timer(wev, clcf->send_timeout);
}

1
src/http/ngx_http_request.h
View File

@ -284,7 +284,6 @@ struct ngx_http_request_s {
/* can we use sendfile ? */
unsigned sendfile:1;
unsigned delayed:1;
unsigned chunked:1;
unsigned header_only:1;
unsigned keepalive:1;

29
src/http/ngx_http_write_filter.c
View File

@ -6,7 +6,8 @@
typedef struct {
size_t postpone_output;
size_t postpone_output; /* postpone_output */
size_t limit_rate; /* limit_rate */
} ngx_http_write_filter_conf_t;
@ -23,19 +24,18 @@ static ngx_int_t ngx_http_write_filter_init(ngx_cycle_t *cycle);
static ngx_command_t ngx_http_write_filter_commands[] = {
/* STUB */
{ ngx_string("buffer_output"),
{ ngx_string("postpone_output"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_write_filter_conf_t, postpone_output),
NULL },
{ ngx_string("postpone_output"),
{ ngx_string("limit_rate"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
ngx_conf_set_size_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_write_filter_conf_t, postpone_output),
offsetof(ngx_http_write_filter_conf_t, limit_rate),
NULL },
ngx_null_command
@ -138,7 +138,7 @@ ngx_int_t ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *in)
return NGX_OK;
}
if (r->delayed) {
if (r->connection->write->delayed) {
return NGX_AGAIN;
}
@ -152,16 +152,18 @@ ngx_int_t ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *in)
sent = r->connection->sent;
chain = ngx_write_chain(r->connection, ctx->out);
chain = ngx_write_chain(r->connection, ctx->out,
conf->limit_rate ? conf->limit_rate:
OFF_T_MAX_VALUE);
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"http write filter %X", chain);
#if 1
sent = r->connection->sent - sent;
r->delayed = 1;
ngx_add_timer(r->connection->write, sent * 1000 / (4 * 1024));
#endif
if (conf->limit_rate) {
sent = r->connection->sent - sent;
r->connection->write->delayed = 1;
ngx_add_timer(r->connection->write, sent * 1000 / conf->limit_rate);
}
if (chain == NGX_CHAIN_ERROR) {
return NGX_ERROR;
@ -186,6 +188,7 @@ static void *ngx_http_write_filter_create_conf(ngx_conf_t *cf)
NULL);
conf->postpone_output = NGX_CONF_UNSET_SIZE;
conf->limit_rate = NGX_CONF_UNSET_SIZE;
return conf;
}
@ -200,6 +203,8 @@ static char *ngx_http_write_filter_merge_conf(ngx_conf_t *cf,
ngx_conf_merge_size_value(conf->postpone_output, prev->postpone_output,
1460);
ngx_conf_merge_size_value(conf->limit_rate, prev->limit_rate, 0);
return NULL;
}

3
src/os/unix/ngx_aio.h
View File

@ -8,7 +8,8 @@
ssize_t ngx_aio_read(ngx_connection_t *c, u_char *buf, size_t size);
ssize_t ngx_aio_read_chain(ngx_connection_t *c, ngx_chain_t *cl);
ssize_t ngx_aio_write(ngx_connection_t *c, u_char *buf, size_t size);
ngx_chain_t *ngx_aio_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,
off_t limit);
#endif /* _NGX_AIO_H_INCLUDED_ */

32
src/os/unix/ngx_aio_write_chain.c
View File

@ -5,21 +5,24 @@
#include <ngx_aio.h>
ngx_chain_t *ngx_aio_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,
off_t limit)
{
int n;
u_char *buf, *prev;
off_t sent;
size_t size;
off_t send, sent;
size_t len;
ssize_t size;
ngx_err_t err;
ngx_chain_t *cl;
send = 0;
sent = 0;
cl = in;
while (cl) {
if (cl->buf->last - cl->buf->pos == 0) {
if (cl->buf->pos == cl->buf->last) {
cl = cl->next;
continue;
}
@ -32,17 +35,28 @@ ngx_chain_t *ngx_aio_write_chain(ngx_connection_t *c, ngx_chain_t *in)
buf = cl->buf->pos;
prev = buf;
size = 0;
len = 0;
/* coalesce the neighbouring bufs */
while (cl && prev == cl->buf->pos) {
size += cl->buf->last - cl->buf->pos;
prev = cl->buf->last;
while (cl && prev == cl->buf->pos && send < limit) {
if (ngx_buf_special(cl->buf)) {
continue;
}
size = cl->buf->last - cl->buf->pos;
if (send + size > limit) {
size = limit - send;
}
len += size;
prev = cl->buf->pos + size;
send += size;
cl = cl->next;
}
n = ngx_aio_write(c, buf, size);
n = ngx_aio_write(c, buf, len);
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "aio_write: %d", n);

3
src/os/unix/ngx_freebsd.h
View File

@ -2,7 +2,8 @@
#define _NGX_FREEBSD_H_INCLUDED_
ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in);
ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in,
off_t limit);
extern int ngx_freebsd_kern_osreldate;

80
src/os/unix/ngx_freebsd_sendfile_chain.c
View File

@ -28,21 +28,22 @@
*/
ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in,
off_t limit)
{
int rc;
u_char *prev;
off_t sent, fprev, send, limit;
off_t fprev, sent, send, sprev, aligned;
size_t hsize, fsize;
ssize_t size;
ngx_uint_t eintr, eagain, ready;
ngx_uint_t eintr, eagain, complete;
struct iovec *iov;
struct sf_hdtr hdtr;
ngx_err_t err;
ngx_buf_t *file;
ngx_array_t header, trailer;
ngx_event_t *wev;
ngx_chain_t *cl, *tail;
ngx_chain_t *cl;
wev = c->write;
@ -62,20 +63,16 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
#endif
#if 1
limit = 4096;
#else
limit = OFF_T_MAX_VALUE;
#endif
send = 0;
eagain = 0;
do {
for ( ;; ) {
file = NULL;
fsize = 0;
hsize = 0;
send = 0;
eintr = 0;
eagain = 0;
ready = 0;
complete = 0;
sprev = send;
ngx_init_array(header, c->pool, 10, sizeof(struct iovec),
NGX_CHAIN_ERROR);
@ -87,7 +84,10 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
prev = NULL;
iov = NULL;
for (cl = in; cl && header.nelts < IOV_MAX; cl = cl->next) {
for (cl = in;
cl && header.nelts < IOV_MAX && send < limit;
cl = cl->next)
{
if (ngx_buf_special(cl->buf)) {
continue;
}
@ -118,7 +118,7 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
/* get the file buf */
if (cl && cl->buf->in_file) {
if (cl && cl->buf->in_file && send < limit) {
file = cl->buf;
fsize = 0;
@ -129,6 +129,13 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
if (send + size > limit) {
size = limit - send;
aligned = (cl->buf->file_pos + size + ngx_pagesize - 1)
& ~(ngx_pagesize - 1);
if (aligned <= cl->buf->file_last) {
size = aligned - cl->buf->file_pos;
}
}
fsize += size;
@ -138,6 +145,7 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
} while (cl
&& cl->buf->in_file
&& send < limit
&& file->file->fd == cl->buf->file->fd
&& fprev == cl->buf->file_pos);
}
@ -148,7 +156,10 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
prev = NULL;
iov = NULL;
for ( /* void */; cl && trailer.nelts < IOV_MAX; cl = cl->next) {
for (/* void */;
cl && header.nelts < IOV_MAX && send < limit;
cl = cl->next)
{
if (ngx_buf_special(cl->buf)) {
continue;
}
@ -178,13 +189,6 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
}
}
/*
* the tail is the rest of the chain that exceedes
* a single sendfile() capability
*/
tail = cl;
if (file) {
if (ngx_freebsd_use_tcp_nopush
@ -286,8 +290,8 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
sent = rc > 0 ? rc : 0;
}
if (send == sent) {
ready = 1;
if (send - sprev == sent) {
complete = 1;
}
c->sent += sent;
@ -329,12 +333,6 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
break;
}
if (ready) {
return cl;
}
in = cl;
if (eagain) {
/*
@ -345,16 +343,22 @@ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
*/
wev->ready = 0;
break;
return cl;
}
/* "tail == in" means that a single sendfile() is complete */
if (eintr) {
continue;
}
} while ((tail && tail == in) || eintr);
if (!complete) {
wev->ready = 0;
return cl;
}
if (in) {
wev->ready = 0;
if (send >= limit || cl == NULL) {
return cl;
}
in = cl;
}
return in;
}

3
src/os/unix/ngx_linux.h
View File

@ -2,7 +2,8 @@
#define _NGX_LINUX_H_INCLUDED_
ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in);
ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in,
off_t limit);
#endif /* _NGX_LINUX_H_INCLUDED_ */

109
src/os/unix/ngx_linux_sendfile_chain.c
View File

@ -19,19 +19,21 @@
*/
ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in,
off_t limit)
{
int rc;
u_char *prev;
off_t fprev;
size_t size, fsize, sent;
ngx_int_t eintr;
off_t fprev, send, sprev, aligned;
size_t fsize;
ssize_t size, sent;
ngx_uint_t eintr, complete;
struct iovec *iov;
ngx_err_t err;
ngx_buf_t *file;
ngx_array_t header;
ngx_event_t *wev;
ngx_chain_t *cl, *tail;
ngx_chain_t *cl;
#if (HAVE_SENDFILE64)
off_t offset;
#else
@ -44,10 +46,14 @@ ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
return in;
}
do {
send = 0;
for ( ;; ) {
file = NULL;
fsize = 0;
eintr = 0;
complete = 0;
sprev = send;
ngx_init_array(header, c->pool, 10, sizeof(struct iovec),
NGX_CHAIN_ERROR);
@ -57,7 +63,10 @@ ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
/* create the iovec and coalesce the neighbouring bufs */
for (cl = in; cl && header.nelts < IOV_MAX; cl = cl->next) {
for (cl = in;
cl && header.nelts < IOV_MAX && send < limit;
cl = cl->next)
{
if (ngx_buf_special(cl->buf)) {
continue;
}
@ -66,16 +75,23 @@ ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
break;
}
size = cl->buf->last - cl->buf->pos;
if (send + size > limit) {
size = limit - send;
}
if (prev == cl->buf->pos) {
iov->iov_len += cl->buf->last - cl->buf->pos;
iov->iov_len += size;
} else {
ngx_test_null(iov, ngx_push_array(&header), NGX_CHAIN_ERROR);
iov->iov_base = (void *) cl->buf->pos;
iov->iov_len = cl->buf->last - cl->buf->pos;
iov->iov_len = size;
}
prev = cl->buf->last;
prev = cl->buf->pos + size;
send += size;
}
/* set TCP_CORK if there is a header before a file */
@ -107,38 +123,41 @@ ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
}
}
if (header.nelts == 0 && cl && cl->buf->in_file) {
/* get the file buf */
/* get the file buf */
if (header.nelts == 0 && cl && cl->buf->in_file && send < limit) {
file = cl->buf;
fsize = (size_t) (file->file_last - file->file_pos);
fprev = file->file_last;
cl = cl->next;
fsize = 0;
/* coalesce the neighbouring file bufs */
while (cl && (cl->buf->in_file)) {
if (file->file->fd != cl->buf->file->fd
|| fprev != cl->buf->file_pos)
{
break;
do {
size = (size_t) (cl->buf->file_last - cl->buf->file_pos);
if (send + size > limit) {
size = limit - send;
aligned = (cl->buf->file_pos + size + ngx_pagesize - 1)
& ~(ngx_pagesize - 1);
if (aligned <= cl->buf->file_last) {
size = aligned - cl->buf->file_pos;
}
}
fsize += (size_t) (cl->buf->file_last - cl->buf->file_pos);
fprev = cl->buf->file_last;
fsize += size;
send += size;
fprev = cl->buf->file_pos + size;
cl = cl->next;
}
} while (cl
&& cl->buf->in_file
&& send < limit
&& file->file->fd == cl->buf->file->fd
&& fprev == cl->buf->file_pos);
}
/*
* the tail is the rest of the chain that exceedes
* a single sendfile() capability
*/
tail = cl;
if (fsize) {
if (file) {
#if (HAVE_SENDFILE64)
offset = file->file_pos;
#else
@ -196,6 +215,10 @@ ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "writev: %d", sent);
}
if (send - sprev == sent) {
complete = 1;
}
c->sent += sent;
for (cl = in; cl; cl = cl->next) {
@ -235,15 +258,19 @@ ngx_chain_t *ngx_linux_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in)
break;
}
if (eintr) {
continue;
}
if (!complete) {
wev->ready = 0;
return cl;
}
if (send >= limit || cl == NULL) {
return cl;
}
in = cl;
/* "tail == in" means that a single sendfile() is complete */
} while ((tail && tail == in) || eintr);
if (in) {
wev->ready = 0;
}
return in;
}

6
src/os/unix/ngx_os.h
View File

@ -27,7 +27,8 @@ typedef struct {
ssize_t (*recv)(ngx_connection_t *c, u_char *buf, size_t size);
ssize_t (*recv_chain)(ngx_connection_t *c, ngx_chain_t *in);
ssize_t (*send)(ngx_connection_t *c, u_char *buf, size_t size);
ngx_chain_t *(*send_chain)(ngx_connection_t *c, ngx_chain_t *in);
ngx_chain_t *(*send_chain)(ngx_connection_t *c, ngx_chain_t *in,
off_t limit);
int flags;
} ngx_os_io_t;
@ -41,7 +42,8 @@ int ngx_posix_post_conf_init(ngx_log_t *log);
ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size);
ssize_t ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *entry);
ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in);
ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in,
off_t limit);
extern ngx_os_io_t ngx_os_io;

4
src/os/unix/ngx_process_cycle.c
View File

@ -786,7 +786,7 @@ ngx_int_t ngx_write_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size,
cmsg.cm.cmsg_len = sizeof(cmsg);
cmsg.cm.cmsg_level = SOL_SOCKET;
cmsg.cm.cmsg_type = SCM_RIGHTS;
*(int *) CMSG_DATA(&cmsg) = ch->fd;
*(int *) CMSG_DATA(&cmsg.cm) = ch->fd;
}
#else
@ -896,7 +896,7 @@ ngx_int_t ngx_read_channel(ngx_socket_t s, ngx_channel_t *ch, size_t size,
return NGX_ERROR;
}
ch->fd = *(int *) CMSG_DATA(&cmsg);
ch->fd = *(int *) CMSG_DATA(&cmsg.cm);
}
if (msg.msg_flags & (MSG_TRUNC|MSG_CTRUNC)) {

3
src/os/unix/ngx_solaris.h
View File

@ -2,7 +2,8 @@
#define _NGX_SOLARIS_H_INCLUDED_
ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in);
ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in,
off_t limit);
#endif /* _NGX_SOLARIS_H_INCLUDED_ */

84
src/os/unix/ngx_solaris_sendfilev_chain.c
View File

@ -9,14 +9,15 @@
#include <ngx_event.h>
ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in)
ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in,
off_t limit)
{
int fd;
u_char *prev;
off_t fprev;
size_t sent, size;
off_t fprev, sprev, send, aligned;
size_t size, sent;
ssize_t n;
ngx_int_t eintr;
ngx_int_t eintr, complete;
ngx_err_t err;
sendfilevec_t *sfv;
ngx_array_t vec;
@ -29,20 +30,25 @@ ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in)
return in;
}
do {
send = 0;
complete = 0;
for ( ;; ) {
fd = SFV_FD_SELF;
prev = NULL;
fprev = 0;
sfv = NULL;
eintr = 0;
sent = 0;
sprev = send;
ngx_init_array(vec, c->pool, 10, sizeof(sendfilevec_t),
NGX_CHAIN_ERROR);
/* create the sendfilevec and coalesce the neighbouring bufs */
for (cl = in; cl && vec.nelts < IOV_MAX; cl = cl->next) {
for (cl = in; cl && vec.nelts < IOV_MAX && send < limit; cl = cl->next)
{
if (ngx_buf_special(cl->buf)) {
continue;
}
@ -50,24 +56,44 @@ ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in)
if (ngx_buf_in_memory_only(cl->buf)) {
fd = SFV_FD_SELF;
size = cl->buf->last - cl->buf->pos;
if (send + size > limit) {
size = limit - send;
}
if (prev == cl->buf->pos) {
sfv->sfv_len += cl->buf->last - cl->buf->pos;
sfv->sfv_len += size;
} else {
ngx_test_null(sfv, ngx_push_array(&vec), NGX_CHAIN_ERROR);
sfv->sfv_fd = SFV_FD_SELF;
sfv->sfv_flag = 0;
sfv->sfv_off = (off_t) (uintptr_t) cl->buf->pos;
sfv->sfv_len = cl->buf->last - cl->buf->pos;
sfv->sfv_len = size;
}
prev = cl->buf->last;
prev = cl->buf->pos + size;
send += size;
} else {
prev = NULL;
size = (size_t) (cl->buf->file_last - cl->buf->file_pos);
if (send + size > limit) {
size = limit - send;
aligned = (cl->buf->file_pos + size + ngx_pagesize - 1)
& ~(ngx_pagesize - 1);
if (aligned <= cl->buf->file_last) {
size = aligned - cl->buf->file_pos;
}
}
if (fd == cl->buf->file->fd && fprev == cl->buf->file_pos) {
sfv->sfv_len += cl->buf->file_last - cl->buf->file_pos;
sfv->sfv_len += size;
} else {
ngx_test_null(sfv, ngx_push_array(&vec), NGX_CHAIN_ERROR);
@ -75,20 +101,14 @@ ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in)
sfv->sfv_fd = fd;
sfv->sfv_flag = 0;
sfv->sfv_off = cl->buf->file_pos;
sfv->sfv_len = cl->buf->file_last - cl->buf->file_pos;
sfv->sfv_len = size;
}
fprev = cl->buf->file_last;
fprev = cl->buf->file_pos + size;
send += size;
}
}
/*
* the tail is the rest of the chain that exceedes a single
* sendfilev() capability, IOV_MAX in Solaris is limited by 16
*/
tail = cl;
n = sendfilev(c->fd, vec.elts, vec.nelts, &sent);
if (n == -1) {
@ -113,6 +133,10 @@ ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in)
ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
"sendfilev: %d " SIZE_T_FMT, n, sent);
if (send - sprev == sent) {
complete = 1;
}
c->sent += sent;
for (cl = in; cl; cl = cl->next) {
@ -152,15 +176,19 @@ ngx_chain_t *ngx_solaris_sendfilev_chain(ngx_connection_t *c, ngx_chain_t *in)
break;
}
if (eintr) {
continue;
}
if (!complete) {
wev->ready = 0;
return cl;
}
if (send >= limit || cl == NULL) {
return cl;
}
in = cl;
/* "tail == in" means that a single sendfilev() is complete */
} while ((tail && tail == in) || eintr);
if (in) {
wev->ready = 0;
}
return in;
}

79
src/os/unix/ngx_writev_chain.c
View File

@ -4,15 +4,15 @@
#include <ngx_event.h>
ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in)
ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
{
u_char *prev;
ssize_t n, size;
off_t sent;
off_t send, sprev, sent;
struct iovec *iov;
ngx_int_t eintr;
ngx_uint_t eintr, complete;
ngx_err_t err;
ngx_array_t io;
ngx_array_t vec;
ngx_chain_t *cl;
ngx_event_t *wev;
@ -34,30 +34,45 @@ ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in)
#endif
ngx_init_array(io, c->pool, 10, sizeof(struct iovec), NGX_CHAIN_ERROR);
ngx_init_array(vec, c->pool, 10, sizeof(struct iovec), NGX_CHAIN_ERROR);
do {
send = 0;
complete = 0;
for ( ;; ) {
prev = NULL;
iov = NULL;
eintr = 0;
sprev = send;
/* create the iovec and coalesce the neighbouring bufs */
for (cl = in; cl; cl = cl->next) {
for (cl = in; cl && vec.nelts < IOV_MAX && send < limit; cl = cl->next)
{
if (ngx_buf_special(cl->buf)) {
continue;
}
size = cl->buf->last - cl->buf->pos;
if (send + size > limit) {
size = limit - send;
}
if (prev == cl->buf->pos) {
iov->iov_len += cl->buf->last - cl->buf->pos;
prev = cl->buf->last;
iov->iov_len += size;
} else {
ngx_test_null(iov, ngx_push_array(&io), NGX_CHAIN_ERROR);
ngx_test_null(iov, ngx_push_array(&vec), NGX_CHAIN_ERROR);
iov->iov_base = (void *) cl->buf->pos;
iov->iov_len = cl->buf->last - cl->buf->pos;
prev = cl->buf->last;
iov->iov_len = size;
}
prev = cl->buf->pos + size;
send += size;
}
n = writev(c->fd, io.elts, io.nelts);
n = writev(c->fd, vec.elts, vec.nelts);
if (n == -1) {
err = ngx_errno;
@ -82,34 +97,48 @@ ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in)
ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
"writev: " OFF_T_FMT, sent);
if (send - sprev == sent) {
complete = 1;
}
c->sent += sent;
for (cl = in; cl && sent > 0; cl = cl->next) {
if (ngx_buf_special(cl->buf)) {
continue;
}
if (sent == 0) {
break;
}
size = cl->buf->last - cl->buf->pos;
if (sent >= size) {
sent -= size;
if (ngx_buf_in_memory(cl->buf)) {
cl->buf->pos = cl->buf->last;
}
cl->buf->pos = cl->buf->last;
continue;
}
if (ngx_buf_in_memory(cl->buf)) {
cl->buf->pos += sent;
}
cl->buf->pos += sent;
break;
}
} while (eintr);
if (eintr) {
continue;
}
if (cl) {
wev->ready = 0;
if (!complete) {
wev->ready = 0;
return cl;
}
if (send >= limit || cl == NULL) {
return cl;
}
in = cl;
}
return cl;
}