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make write more fair...until now it was written as long a possible given no chance for reading anymore...

release0.1.6
Georg Hopp 12 years ago
parent
commit
691673991c
  1. 12
      src/application/adapter/http/update.c
  2. 175
      src/http/writer/write.c

12
src/application/adapter/http/update.c

@ -184,14 +184,14 @@ applicationAdapterHttpUpdate(void * _this, void * subject)
session = applicationSessionGet(this->application, sid); session = applicationSessionGet(this->application, sid);
if (NULL == session) { if (NULL == session) {
session = applicationSessionStart(this->application); session = applicationSessionStart(this->application);
// send session cookie
nbuf = sprintf(buf, "sid=%s;Path=/", session->id);
queuePut(
worker->additional_headers,
new(HttpHeader, CSTRA("Set-Cookie"), buf, nbuf));
} }
// send session cookie
nbuf = sprintf(buf, "sid=%s;Path=/", session->id);
queuePut(
worker->additional_headers,
new(HttpHeader, CSTRA("Set-Cookie"), buf, nbuf));
if (0 == strcmp("POST", worker->current_request->method)) { if (0 == strcmp("POST", worker->current_request->method)) {
if (0 == strcmp("/login/", worker->current_request->path)) { if (0 == strcmp("/login/", worker->current_request->path)) {
loginAdapter(this->application, worker, session); loginAdapter(this->application, worker, session);

175
src/http/writer/write.c

@ -37,114 +37,113 @@ ssize_t
httpWriterWrite(void * _this, Stream st) httpWriterWrite(void * _this, Stream st)
{ {
HttpWriter this = _this; HttpWriter this = _this;
int cont = 1;
while (cont) {
switch (this->state) {
char * start;
ssize_t to_write;
ssize_t written;
switch (this->state) {
char * start;
ssize_t to_write;
ssize_t written;
case HTTP_WRITER_GET:
if (! queueEmpty(this->queue)) {
this->current = queueGet(this->queue);
case HTTP_WRITER_GET:
this->written = 0;
this->nheader = httpMessageHeaderSizeGet(this->current);
if (! queueEmpty(this->queue)) {
this->current = queueGet(this->queue);
if (this->nheader > memGetSize(this->buffer)) {
ssize_t size = this->nheader;
this->written = 0;
this->nheader = httpMessageHeaderSizeGet(this->current);
size = (0 != size%WRITER_BUF_CHUNK)?
(size/WRITER_BUF_CHUNK)+1 :
size/WRITER_BUF_CHUNK;
size *= WRITER_BUF_CHUNK;
if (this->nheader > memGetSize(this->buffer)) {
ssize_t size = this->nheader;
if (NULL != this->buffer) {
MEM_FREE(this->buffer);
}
size = (0 != size%WRITER_BUF_CHUNK)?
(size/WRITER_BUF_CHUNK)+1 :
size/WRITER_BUF_CHUNK;
size *= WRITER_BUF_CHUNK;
this->buffer = memMalloc(size);
this->nbuffer = size;
}
if (NULL != this->buffer) {
MEM_FREE(this->buffer);
}
httpMessageHeaderToString(this->current, this->buffer);
this->buffer = memMalloc(size);
this->nbuffer = size;
}
this->nbody = MIN(
this->current->nbody,
this->nbuffer - this->nheader);
httpMessageHeaderToString(this->current, this->buffer);
memcpy(
this->buffer + this->nheader,
this->current->body,
this->nbody);
this->nbody = MIN(
this->current->nbody,
this->nbuffer - this->nheader);
this->state = HTTP_WRITER_WRITE;
}
else {
cont = 0;
break;
}
memcpy(
this->buffer + this->nheader,
this->current->body,
this->nbody);
case HTTP_WRITER_WRITE:
if (this->written >= this->nbuffer) {
size_t body_done = this->written - this->nheader;
this->state = HTTP_WRITER_WRITE;
}
else {
break;
}
start = this->current->body + body_done;
to_write = this->current->nbody - body_done;
} else {
start = this->buffer + this->written;
to_write = (this->nheader + this->nbody) - this->written;
}
case HTTP_WRITER_WRITE:
written = streamWrite(st, start, to_write);
if (this->written >= this->nbuffer) {
size_t body_done = this->written - this->nheader;
if (written < 0) {
return written;
}
start = this->current->body + body_done;
to_write = this->current->nbody - body_done;
} else {
start = this->buffer + this->written;
to_write = (this->nheader + this->nbody) - this->written;
}
this->written += written;
if (written != to_write) {
/*
* for some reason not all data could be
* written...most likely its a slow connection
* so, not to slow down the server we stop
* writing to this one now and come back to
* it in the next run....maybe it would be
* feasable to also implement some kind of
* timeout mechanism for writes...
* By the way, the same is true for reading,
* so to say, the parser.
*/
cont = 0;
break;
}
written = streamWrite(st, start, to_write);
if (this->written >= this->nheader + this->current->nbody) {
// we are done with this message.
this->state = HTTP_WRITER_DONE;
} else {
break;
}
if (written < 0) {
return written;
}
case HTTP_WRITER_DONE:
this->state = HTTP_WRITER_GET;
if (! httpMessageHasKeepAlive(this->current)) {
/**
* if the message did not have the keep-alive feature
* we don't care about further pipelined messages and
* return to the caller with a -2 indicating that the
* underlying connection should be closed at their side.
* Then we close to connection.
*/
return -2;
}
delete(this->current);
this->written += written;
if (written != to_write) {
/*
* for some reason not all data could be
* written...most likely its a slow connection
* so, not to slow down the server we stop
* writing to this one now and come back to
* it in the next run....maybe it would be
* feasable to also implement some kind of
* timeout mechanism for writes...
* By the way, the same is true for reading,
* so to say, the parser.
*/
break;
}
break;
if (this->written >= this->nheader + this->current->nbody) {
// we are done with this message.
this->state = HTTP_WRITER_DONE;
} else {
break;
} }
case HTTP_WRITER_DONE:
this->state = HTTP_WRITER_GET;
if (! httpMessageHasKeepAlive(this->current)) {
/**
* if the message did not have the keep-alive feature
* we don't care about further pipelined messages and
* return to the caller with a -2 indicating that the
* underlying connection should be closed at their side.
* Then we close to connection.
*/
delete(this->current);
return -2;
}
delete(this->current);
break;
} }
return NULL == this->current ? return NULL == this->current ?

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