Trivial cleanup

[babeltrace.git] / formats / ctf / ctf.c

diff --git a/formats/ctf/ctf.c b/formats/ctf/ctf.c
index 9a0e003a2fa3e5081ca331cad3c533c7223706af..f5ad955e0e417ccfdb12d928eeee880bc03ad08d 100644 (file)
--- a/formats/ctf/ctf.c
+++ b/formats/ctf/ctf.c
@@ -3,37 +3,41 @@
  *
  * Format registration.
  *
- * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
  *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
  */
 
 #include <babeltrace/format.h>
 #include <babeltrace/ctf/types.h>
+#include <babeltrace/ctf/metadata.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <glib.h>
+
+struct trace_descriptor {
+       struct ctf_trace ctf_trace;
+};
 
-void __attribute__((constructor)) ctf_init(void);
+struct trace_descriptor *ctf_open_trace(const char *path, int flags);
+void ctf_close_trace(struct trace_descriptor *descriptor);
 
-static const struct format ctf_format = {
+static struct format ctf_format = {
        .uint_read = ctf_uint_read,
        .int_read = ctf_int_read,
        .uint_write = ctf_uint_write,
        .int_write = ctf_int_write,
-       .bitfield_unsigned_read = ctf_bitfield_unsigned_read,
-       .bitfield_signed_read = ctf_bitfield_signed_read,
-       .bitfield_unsigned_write = ctf_bitfield_unsigned_write,
-       .bitfield_signed_write = ctf_bitfield_signed_write,
        .double_read = ctf_double_read,
        .double_write = ctf_double_write,
        .float_copy = ctf_float_copy,
@@ -43,13 +47,107 @@ static const struct format ctf_format = {
        .string_free_temp = ctf_string_free_temp,
        .enum_read = ctf_enum_read,
        .enum_write = ctf_enum_write,
+       .struct_begin = ctf_struct_begin,
+       .struct_end = ctf_struct_end,
+       .variant_begin = ctf_variant_begin,
+       .variant_end = ctf_variant_end,
+       .array_begin = ctf_array_begin,
+       .array_end = ctf_array_end,
+       .sequence_begin = ctf_sequence_begin,
+       .sequence_end = ctf_sequence_end,
+       .open_trace = ctf_open_trace,
+       .close_trace = ctf_close_trace,
 };
 
-void ctf_init(void)
+static
+int ctf_open_trace_read(struct trace_descriptor *td, const char *path, int flags)
+{
+       int ret;
+
+       td->ctf_trace.flags = flags;
+
+       /* Open trace directory */
+       td->ctf_trace.dir = opendir(path);
+       if (!td->ctf_trace.dir) {
+               fprintf(stdout, "Unable to open trace directory.\n");
+               ret = -ENOENT;
+               goto error;
+       }
+
+
+
+       /*
+        * Open each stream: for each file, try to open, check magic
+        * number, and get the stream ID to add to the right location in
+        * the stream array.
+        *
+        * Keep the metadata file separate.
+        */
+
+
+
+       /*
+        * Use the metadata file to populate the trace metadata.
+        */
+
+
+       return 0;
+error:
+       return ret;
+}
+
+static
+int ctf_open_trace_write(struct trace_descriptor *td, const char *path, int flags)
+{
+       int ret;
+
+       ret = mkdir(path, S_IRWXU|S_IRWXG);
+       if (ret)
+               return ret;
+
+       return 0;
+}
+
+struct trace_descriptor *ctf_open_trace(const char *path, int flags)
+{
+       struct trace_descriptor *td;
+       int ret;
+
+       td = g_new(struct trace_descriptor, 1);
+
+       switch (flags) {
+       case O_RDONLY:
+               ret = ctf_open_trace_read(td, path, flags);
+               if (ret)
+                       goto error;
+               break;
+       case O_WRONLY:
+               ret = ctf_open_trace_write(td, path, flags);
+               if (ret)
+                       goto error;
+               break;
+       default:
+               fprintf(stdout, "Incorrect open flags.\n");
+               goto error;
+       }
+
+       return td;
+error:
+       g_free(td);
+       return NULL;
+}
+
+void ctf_close_trace(struct trace_descriptor *td)
+{
+       closedir(td->ctf_trace.dir);
+       g_free(td);
+}
+
+void __attribute__((constructor)) ctf_init(void)
 {
        int ret;
 
-       ctf_format->name = g_quark_from_static_string("ctf");
+       ctf_format.name = g_quark_from_static_string("ctf");
        ret = bt_register_format(&ctf_format);
        assert(!ret);
 }