X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=converter%2Fbabeltrace.c;h=539734eeaa55df4e3ba23019f8cbe5d9560fef51;hp=f83e1e62ba0f656323398467057e13ebeb29a9e8;hb=20d24215ef299a387abac4850f82359de8a86f4d;hpb=86bc640a715003bb724a2d54ba022b01e70be6a1

diff --git a/converter/babeltrace.c b/converter/babeltrace.c
index f83e1e62..539734ee 100644
--- a/converter/babeltrace.c
+++ b/converter/babeltrace.c
@@ -18,7 +18,7 @@
  * all copies or substantial portions of the Software.
  */
 
-#define _XOPEN_SOURCE 700
+#define _GNU_SOURCE
 #include <config.h>
 #include <babeltrace/babeltrace.h>
 #include <babeltrace/format.h>
@@ -33,10 +33,9 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <fcntl.h>
-#include <ftw.h>
-#include <dirent.h>
 #include <unistd.h>
 #include <inttypes.h>
+#include <fts.h>
 
 #include <babeltrace/ctf-ir/metadata.h>	/* for clocks */
 
@@ -303,6 +302,94 @@ end:
 }
 
 
+/*
+ * bt_context_add_traces_recursive: Open a trace recursively
+ *
+ * Find each trace present in the subdirectory starting from the given
+ * path, and add them to the context.
+ *
+ * Return: 0 on success, nonzero on failure.
+ * Unable to open toplevel: failure.
+ * Unable to open some subdirectory or file: warn and continue;
+ */
+int bt_context_add_traces_recursive(struct bt_context *ctx, const char *path,
+		const char *format_str)
+{
+	FTS *tree;
+	FTSENT *node;
+	GArray *trace_ids;
+	char lpath[PATH_MAX];
+	char * const paths[2] = { lpath, NULL };
+	int ret;
+
+	/*
+	 * Need to copy path, because fts_open can change it.
+	 * It is the pointer array, not the strings, that are constant.
+	 */
+	strncpy(lpath, path, PATH_MAX);
+	lpath[PATH_MAX - 1] = '\0';
+
+	tree = fts_open(paths, FTS_NOCHDIR | FTS_LOGICAL, 0);
+	if (tree == NULL) {
+		fprintf(stderr, "[error] [Context] Cannot traverse \"%s\" for reading.\n",
+				path);
+		return -EINVAL;
+	}
+
+	trace_ids = g_array_new(FALSE, TRUE, sizeof(int));
+
+	while ((node = fts_read(tree))) {
+		int dirfd, metafd;
+
+		if (!(node->fts_info & FTS_D))
+			continue;
+
+		dirfd = open(node->fts_accpath, 0);
+		if (dirfd < 0) {
+			fprintf(stderr, "[error] [Context] Unable to open trace "
+				"directory file descriptor.\n");
+			ret = dirfd;
+			goto error;
+		}
+		metafd = openat(dirfd, "metadata", O_RDONLY);
+		if (metafd < 0) {
+			ret = close(dirfd);
+			if (ret < 0) {
+				perror("close");
+				goto error;
+			}
+		} else {
+			int trace_id;
+
+			ret = close(metafd);
+			if (ret < 0) {
+				perror("close");
+				goto error;
+			}
+			ret = close(dirfd);
+			if (ret < 0) {
+				perror("close");
+				goto error;
+			}
+
+			trace_id = bt_context_add_trace(ctx,
+				node->fts_accpath, format_str);
+			if (trace_id < 0) {
+				fprintf(stderr, "[error] [Context] opening trace \"%s\" from %s "
+					"for reading.\n", node->fts_accpath, path);
+				ret = trace_id;
+				goto error;
+			}
+			g_array_append_val(trace_ids, trace_id);
+		}
+	}
+
+	g_array_free(trace_ids, TRUE);
+	return 0;
+
+error:
+	return ret;
+}