sender: Deplete ACLs on exit.
[paraslash.git] / file_write.c
index e6a3229..9a5ed5d 100644 (file)
@@ -1,27 +1,19 @@
-/*
- * Copyright (C) 2006-2010 Andre Noll <maan@systemlinux.org>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
+/* Copyright (C) 2006 Andre Noll <maan@tuebingen.mpg.de>, see file COPYING. */
 
 /** \file file_write.c simple output plugin for testing purposes */
 
 #include <regex.h>
 #include <sys/types.h>
-#include <dirent.h>
-#include <sys/time.h>
-#include <stdbool.h>
+#include <lopsub.h>
 
+#include "write_cmd.lsg.h"
 #include "para.h"
 #include "list.h"
 #include "sched.h"
-#include "ggo.h"
 #include "buffer_tree.h"
 #include "write.h"
-#include "write_common.h"
 #include "string.h"
 #include "fd.h"
-#include "file_write.cmdline.h"
 #include "error.h"
 
 /** Data specific to the file writer. */
@@ -40,59 +32,52 @@ struct private_file_write_data {
 __must_check __malloc static char *random_filename(void)
 {
        char *result, *home = para_homedir();
-       struct timeval tv;
 
-       gettimeofday(&tv, NULL);
-       srandom(tv.tv_usec);
-       result = make_message("%s/.paraslash/%08lu", home,
+       srandom(clock_get_realtime(NULL)->tv_usec);
+       result = make_message("%s/.paraslash/%08ld", home,
                para_random(99999999));
        free(home);
        return result;
 }
 
-static void file_write_open(struct writer_node *wn)
-{
-       struct private_file_write_data *pfwd = para_calloc(sizeof(*pfwd));
-
-       wn->private_data = pfwd;
-       pfwd->fd = -1;
-}
-
 static int prepare_output_file(struct writer_node *wn)
 {
-       struct file_write_args_info *conf = wn->conf;
-       struct private_file_write_data *pfwd = wn->private_data;
-       char *filename;
-       int ret;
-
-       if (conf->filename_given)
-               filename = conf->filename_arg;
-       else
-               filename = random_filename();
-       ret = para_open(filename, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR);
-       if (!conf->filename_given)
-               free(filename);
+       const unsigned flags = O_WRONLY | O_CREAT, mode = S_IRUSR | S_IWUSR;
+       int ret, fd;
+       struct private_file_write_data *pfwd;
+
+
+       if (WRITE_CMD_OPT_GIVEN(FILE, FILENAME, wn->lpr)) {
+               const char *path = WRITE_CMD_OPT_STRING_VAL(FILE, FILENAME,
+                       wn->lpr);
+               ret = para_open(path, flags, mode);
+       } else {
+               char *path = random_filename();
+               ret = para_open(path, flags, mode);
+               free(path);
+       }
        if (ret < 0)
-               goto out;
-       pfwd->fd = ret;
-       ret = mark_fd_blocking(pfwd->fd);
-       if (ret >= 0)
-               return 1;
-       close(pfwd->fd);
-out:
-       free(pfwd);
-       return ret;
+               return ret;
+       fd = ret;
+       ret = mark_fd_blocking(fd);
+       if (ret < 0) {
+               close(fd);
+               return ret;
+       }
+       pfwd = wn->private_data = para_calloc(sizeof(*pfwd));
+       pfwd->fd = fd;
+       return 1;
 }
 
-static void file_write_pre_select(struct sched *s, struct task *t)
+static void file_write_pre_select(struct sched *s, void *context)
 {
-       struct writer_node *wn = container_of(t, struct writer_node, task);
+       struct writer_node *wn = context;
        struct private_file_write_data *pfwd = wn->private_data;
        int ret = btr_node_status(wn->btrn, wn->min_iqs, BTR_NT_LEAF);
 
        if (ret == 0)
                return;
-       if (ret < 0 || pfwd->fd < 0)
+       if (ret < 0 || !pfwd)
                return sched_min_delay(s);
        para_fd_set(pfwd->fd, &s->wfds, &s->max_fileno);
 }
@@ -101,75 +86,49 @@ static void file_write_close(struct writer_node *wn)
 {
        struct private_file_write_data *pfwd = wn->private_data;
 
-       if (pfwd->fd >= 0)
-               close(pfwd->fd);
+       if (!pfwd)
+               return;
+       close(pfwd->fd);
        free(pfwd);
 }
 
-static void file_write_post_select(__a_unused struct sched *s,
-               struct task *t)
+static int file_write_post_select(__a_unused struct sched *s, void *context)
 {
-       struct writer_node *wn = container_of(t, struct writer_node, task);
+       struct writer_node *wn = context;
        struct private_file_write_data *pfwd = wn->private_data;
        struct btr_node *btrn = wn->btrn;
        int ret;
        char *buf;
        size_t bytes;
 
-       t->error = 0;
+       ret = task_get_notification(wn->task);
+       if (ret < 0)
+               goto out;
        ret = btr_node_status(btrn, wn->min_iqs, BTR_NT_LEAF);
        if (ret <= 0)
                goto out;
-       if (pfwd->fd < 0) {
+       if (!pfwd) {
                ret = prepare_output_file(wn);
-               if (ret < 0)
-                       goto out;
+               goto out;
        }
        if (!FD_ISSET(pfwd->fd, &s->wfds))
-               return;
+               return 0;
        bytes = btr_next_buffer(btrn, &buf);
        assert(bytes > 0);
        //PARA_INFO_LOG("writing %zu\n", bytes);
-       ret = write(pfwd->fd, buf, bytes);
+       ret = xwrite(pfwd->fd, buf, bytes);
        if (ret < 0)
                goto out;
        btr_consume(btrn, ret);
 out:
        if (ret < 0)
-               btr_remove_node(btrn);
-       t->error = ret;
-}
-
-__malloc static void *file_write_parse_config_or_die(const char *options)
-{
-       struct file_write_args_info *conf = para_calloc(sizeof(*conf));
-
-       /* exits on errors */
-       file_cmdline_parser_string(options, conf, "file_write");
-       return conf;
-}
-
-static void file_write_free_config(void *conf)
-{
-       file_cmdline_parser_free(conf);
+               btr_remove_node(&wn->btrn);
+       return ret;
 }
 
 /** the init function of the file writer */
-void file_write_init(struct writer *w)
-{
-       struct file_write_args_info dummy;
-
-       file_cmdline_parser_init(&dummy);
-       w->open = file_write_open;
-       w->pre_select = file_write_pre_select;
-       w->post_select = file_write_post_select;
-       w->parse_config_or_die = file_write_parse_config_or_die;
-       w->free_config = file_write_free_config;
-       w->close = file_write_close;
-       w->shutdown = NULL; /* nothing to do */
-       w->help = (struct ggo_help) {
-               .short_help = file_write_args_info_help,
-               .detailed_help = file_write_args_info_detailed_help
-       };
-       file_cmdline_parser_free(&dummy);
-}
+struct writer lsg_write_cmd_com_file_user_data = {
+       .pre_select = file_write_pre_select,
+       .post_select = file_write_post_select,
+       .close = file_write_close,
+};