Flush buffer for cam2image too

ros2 · Mar 7, 2017 · 0e42da7 · 0e42da7
1 parent ff1551a
commit 0e42da7
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diff --git a/image_tools/src/cam2image.cpp b/image_tools/src/cam2image.cpp
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include <cstdio>
 #include <iostream>
 #include <memory>
 #include <string>
@@ -84,6 +85,11 @@ int main(int argc, char * argv[])
   size_t height = 240;
   bool burger_mode = false;
 
+  // Force flush of the stdout buffer.
+  // This ensures a correct sync of all prints
+  // even when executed simultaneously within a launch file.
+  setvbuf(stdout, NULL, _IONBF, BUFSIZ);
+
   // Configure demo parameters with command line options.
   bool success = parse_command_options(
     argc, argv, &depth, &reliability_policy, &history_policy, &show_camera, &freq, &width, &height,

diff --git a/image_tools/src/showimage.cpp b/image_tools/src/showimage.cpp
@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#include <cstdio>
 #include <iostream>
 #include <sstream>
 #include <string>