dynamically get and free buffer for response write pipe now

+2012-02-15 04:44:38 +0100 Georg Hopp 
+
+	* dynamically get and free buffer for response write pipe now (HEAD, master)
+
 2012-02-14 21:32:38 +0100 Georg Hopp 
 
-	* increase write buffer (HEAD, master)
+	* increase write buffer (origin/master, origin/HEAD)
 
 2012-02-13 21:27:47 +0100 Georg Hopp 
 
-	* use one dynamic buffer less and save at least one write on small responses (origin/master, origin/HEAD)
+	* use one dynamic buffer less and save at least one write on small responses
 
 2012-02-13 18:25:36 +0100 Georg Hopp 
 

@@ -5,7 +5,7 @@
 #include "http/response.h"
 #include "http/message/queue.h"
 
-#define RESPONSE_WRITER_BUF_SIZE	131072
+#define RESPONSE_WRITER_MAX_BUF	131072
 
 
 typedef enum e_HttpResponseState {
@@ -15,7 +15,7 @@ typedef enum e_HttpResponseState {
 } HttpResponseState;
 
 CLASS(HttpResponseWriter) {
-	char              pipe[RESPONSE_WRITER_BUF_SIZE];
+	char *            pipe;
 
 	size_t            nheader;
 	size_t            nbuffer;

@@ -12,11 +12,14 @@
 #include "http/response.h"
 #include "http/response/writer.h"
 
+#define MAX(x,y)	((x) > (y) ? (x) : (y))
+#define _PSIZE(x)	(MAX((x),RESPONSE_WRITER_MAX_BUF))
+#define PSIZE		_PSIZE(this->nheader+message->nbody)
+
 HttpResponse
 httpResponseWriterWrite(HttpResponseWriter this, int fd)
 {
 	HttpMessageQueue respq   = this->response_queue;
-	HttpResponse     retval  = this->cur_response;
 	HttpMessage      message = (HttpMessage)this->cur_response;
 	int              cont    = 1;
 
@@ -25,7 +28,7 @@ httpResponseWriterWrite(HttpResponseWriter this, int fd)
 			case HTTP_RESPONSE_GET:
 				if (NULL == this->cur_response && 0 < respq->nmsgs) {
 					message = respq->msgs[0];
-					retval  = this->cur_response = (HttpResponse)message;
+					this->cur_response = (HttpResponse)message;
 
 					memmove(respq->msgs,
 							&(respq->msgs[1]),
@@ -34,8 +37,9 @@ httpResponseWriterWrite(HttpResponseWriter this, int fd)
 					this->nbuffer = 0;
 					this->written = 0;
 					this->pstart  = 0;
-					this->pend    = httpMessageHeaderSizeGet(message);
-					this->nheader = this->pend;
+					this->nheader = httpMessageHeaderSizeGet(message);
+					this->pend    = this->nheader;
+					this->pipe    = malloc(PSIZE);
 					httpMessageHeaderToString(message, this->pipe);
 
 					this->state = HTTP_RESPONSE_WRITE;
@@ -53,11 +57,11 @@ httpResponseWriterWrite(HttpResponseWriter this, int fd)
 					size_t temp = 0;
 					size_t rsize;
 
-					this->pend = (RESPONSE_WRITER_BUF_SIZE == this->pend)?
+					this->pend = (PSIZE == this->pend)?
 						0 : this->pend;
 
 					rsize = (this->pstart <= this->pend)?
-						RESPONSE_WRITER_BUF_SIZE - this->pend :
+						PSIZE - this->pend :
 						this->pstart - 1;
 
 					switch (message->type) {
@@ -92,27 +96,18 @@ httpResponseWriterWrite(HttpResponseWriter this, int fd)
 
 					wsize = (this->pstart <= this->pend)?
 						this->pend - this->pstart :
-						RESPONSE_WRITER_BUF_SIZE - this->pstart;
+						PSIZE - this->pstart;
 
 					temp = write(fd, &(this->pipe[this->pstart]), wsize);
 
 					this->written += temp;
 					this->pstart  += temp;
 
-					this->pstart = (RESPONSE_WRITER_BUF_SIZE == this->pstart)?
+					this->pstart = (PSIZE == this->pstart)?
 						0 : this->pstart;
 				}
 
 				if (this->written == message->nbody + this->nheader) {
-					if (HTTP_MESSAGE_PIPED == message->type) {
-						close(message->handle);
-					}
-					this->nheader = 0;
-					this->nbuffer = 0;
-					this->written = 0;
-					this->pstart  = 0;
-					this->pend    = 0;
-
 					this->state = HTTP_RESPONSE_DONE;
 				}
 				else {
@@ -121,15 +116,31 @@ httpResponseWriterWrite(HttpResponseWriter this, int fd)
 				break;
 
 			case HTTP_RESPONSE_DONE:
-				this->cur_response = NULL;
-	 			this->state = HTTP_RESPONSE_GET;
-				cont = 0;
+				if (HTTP_MESSAGE_PIPED == message->type) {
+					close(message->handle);
+				}
 
+				free(this->pipe);
+
+				this->nheader = 0;
+				this->nbuffer = 0;
+				this->written = 0;
+				this->pstart  = 0;
+				this->pend    = 0;
+
+				if (httpMessageHasKeepAlive(message)) {
+					delete(&this->cur_response);
+				}
+				else {
+					cont = 0;
+				}
+
+	 			this->state = HTTP_RESPONSE_GET;
 				break;
 		}
 	}
 
-	return retval;
+	return this->cur_response;
 }
 
 // vim: set ts=4 sw=4:

@@ -173,10 +173,9 @@ serverRun(Server this)
 						(this->fds)[i].events &= ~POLLOUT;
 					}
 					else {
+						delete(&message);
 						serverCloseConn(this, i);
 					}
-
-					delete(&message);
 				}
 			}
 		}