X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=file_writer.c;h=e90647d230cf7f3f797f648892fa0530198941ab;hp=dabe92ce37fb941909a3286fe0575ef9e23e260d;hb=db02b614d1231685e64b27b4838c7cd699e51790;hpb=abc1c0b936dfe3eeaf73560be9e6e276d2993ef3

diff --git a/file_writer.c b/file_writer.c
index dabe92ce..e90647d2 100644
--- a/file_writer.c
+++ b/file_writer.c
@@ -19,38 +19,80 @@
 /** \file file_writer.c simple output plugin for testing purposes */
 
 #include "para.h"
+#include "list.h"
+#include "sched.h"
 #include "write.h"
 #include "string.h"
+#include "fd.h"
+#include "file_write.cmdline.h"
 #include "error.h"
 
+/** data specific to the file writer */
 struct private_file_writer_data {
+	/** the file descriptor of the output file */
 	int fd;
+	/** non-zero if \a fd was added to the write fd set */
+	int check_fd;
 };
-static int file_writer_open(struct writer_node *w)
+
+static int file_writer_open(struct writer_node *wn)
 {
 	struct private_file_writer_data *pfwd = para_calloc(
 		sizeof(struct private_file_writer_data));
-	char *tmp = para_tmpname(), *home = para_homedir(),
-		*filename = make_message("%s/.paraslash/%s", home, tmp);
-
-	free(home);
-	free(tmp);
-	w->private_data = pfwd;
+	struct file_write_args_info *conf = wn->conf;
+	char *filename;
+	if (conf->filename_given)
+		filename = conf->filename_arg;
+	else {
+		char *tmp = para_tmpname(), *home = para_homedir();
+		filename = make_message("%s/.paraslash/%s", home, tmp);
+		free(home);
+		free(tmp);
+	}
+	wn->private_data = pfwd;
 	pfwd->fd = open(filename, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR);
-	free(filename);
+	if (!conf->filename_given)
+		free(filename);
 	if (pfwd->fd >= 0)
 		return 8192;
 	free(pfwd);
 	return -E_FW_OPEN;
 }
 
-static int file_writer_write(char *data, size_t nbytes, struct writer_node *wn)
+static int file_writer_pre_select(struct sched *s, struct writer_node *wn)
 {
 	struct private_file_writer_data *pfwd = wn->private_data;
-	int ret = write(pfwd->fd, data, nbytes);
+	struct writer_node_group *wng = wn->wng;
+
+	pfwd->check_fd = 0;
+	if (pfwd->fd <= 0)
+		return -E_FW_NO_FILE;
+	if (!*wng->loaded)
+		return 1;
+	para_fd_set(pfwd->fd, &s->wfds, &s->max_fileno);
+	pfwd->check_fd = 1;
+	return 1;
+}
+
+static int file_writer_post_select(struct sched *s, struct writer_node *wn)
+{
+	struct private_file_writer_data *pfwd = wn->private_data;
+	struct writer_node_group *wng = wn->wng;
+	int ret;
+
+	if (!pfwd->check_fd)
+		return 1;
+	if (*wng->loaded <= wn->written)
+		return 1;
+	if (!FD_ISSET(pfwd->fd, &s->wfds))
+		return 1;
+//	PARA_INFO_LOG("writing %zd\n", *wng->loaded);
+	ret = write(pfwd->fd, wng->buf + wn->written,
+		*wng->loaded - wn->written);
 	if (ret < 0)
-		ret = -E_FW_WRITE;
-	return ret;
+		return -E_FW_WRITE;
+	wn->written += ret;
+	return 1;
 }
 
 static void file_writer_close(struct writer_node *wn)
@@ -60,10 +102,26 @@ static void file_writer_close(struct writer_node *wn)
 	free(pfwd);
 }
 
+__malloc void *file_writer_parse_config(char *options)
+{
+	PARA_INFO_LOG("options: %s\n", options);
+	struct file_write_args_info *conf
+		= para_calloc(sizeof(struct file_write_args_info));
+	int ret = file_cmdline_parser_string(options, conf, "file_write");
+	PARA_INFO_LOG("conf->filename_given: %d\n", conf->filename_given);
+	if (!ret)
+		return conf;
+	free(conf);
+	return NULL;
+}
+
+/** the init function of the file writer */
 void file_writer_init(struct writer *w)
 {
 	w->open = file_writer_open;
-	w->write = file_writer_write;
+	w->pre_select = file_writer_pre_select;
+	w->post_select = file_writer_post_select;
+	w->parse_config = file_writer_parse_config;
 	w->close = file_writer_close;
 	w->shutdown = NULL; /* nothing to do */
 }