From: Julien Desfossez <jdesfossez@efficios.com>
Date: Wed, 12 Feb 2014 05:28:15 +0000 (-0500)
Subject: Free the filename on sys_close
X-Git-Tag: v0.3~34
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=38be0c3fdc487f3cc2609266a33a39b96289faba;p=lttngtop.git

Free the filename on sys_close

We don't support yet all the syscalls that can return a FD, so we should
at least make sure that we don't reuse closed filenames.

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
---

diff --git a/src/iostreamtop.c b/src/iostreamtop.c
index f20fcec..f3fef7b 100644
--- a/src/iostreamtop.c
+++ b/src/iostreamtop.c
@@ -48,7 +48,8 @@ void add_file(struct processtop *proc, struct files *file, int fd)
 		if (tmp_file == NULL)
 			g_ptr_array_index(proc->process_files_table, fd) = file;
 		else {
-			if (strcmp(tmp_file->name, file->name) != 0) {
+			if (!tmp_file->name ||
+					strcmp(tmp_file->name, file->name) != 0) {
 				size = proc->process_files_table->len;
 				g_ptr_array_set_size(proc->process_files_table,
 								size+1);
@@ -139,6 +140,10 @@ void close_file(struct processtop *proc, int fd)
 	if (file != NULL) {
 		file->flag = __NR_close;
 		lttngtop.nbfiles--;
+		if (file->name) {
+			free(file->name);
+			file->name = NULL;
+		}
 	}
 	lttngtop.nbclosedfiles++;
 }