added tempfile chunks which remove the file automaticly of they are closed

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-merge-1.4.x@738 152afb58-edef-0310-8abb-c4023f1b3aa9

src/chunk.c

@@ -58,6 +58,11 @@ static void chunk_reset(chunk *c) {
 	if (!c) return;
 	
 	buffer_reset(c->mem);
+
+	if (c->file.is_temp && !buffer_is_empty(c->file.name)) {
+		unlink(c->file.name->ptr);
+	}
+	
 	buffer_reset(c->file.name);
 
 	if (c->file.fd != -1) {
@@ -247,6 +252,25 @@ buffer *chunkqueue_get_append_buffer(chunkqueue *cq) {
 	return c->mem;
 }
 
+chunk *chunkqueue_get_append_tempfile(chunkqueue *cq) {
+	chunk *c;
+	char template[] = "/var/tmp/lighttpd-upload-XXXXXX";
+	
+	c = chunkqueue_get_unused_chunk(cq);
+
+	c->type = FILE_CHUNK;
+	c->file.is_temp = 1;
+	c->offset = 0;
+	c->file.fd = mkstemp(template);
+	c->file.length = 0;
+	buffer_copy_string(c->file.name, template);
+
+	chunkqueue_append_chunk(cq, c);
+	
+	return c;
+}
+
+
 off_t chunkqueue_length(chunkqueue *cq) {
 	off_t len = 0;
 	chunk *c;

src/chunk.h

@@ -27,6 +27,8 @@ typedef struct chunk {
 			char   *start;
 			size_t length;
 		} mmap;
+
+		int is_temp;
 	} file;
 	
 	/* how many bytes are already handled */
@@ -54,6 +56,7 @@ int chunkqueue_prepend_buffer(chunkqueue *c, buffer *mem);
 
 buffer * chunkqueue_get_append_buffer(chunkqueue *c);
 buffer * chunkqueue_get_prepend_buffer(chunkqueue *c);
+chunk * chunkqueue_get_append_tempfile(chunkqueue *cq);
 
 int chunkqueue_remove_finished_chunks(chunkqueue *cq);