[nifi-minifi-cpp] branch master updated: MINIFICPP-1221 - Cannot attach to running MiNiFi process.

[ab...@apache.org]

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aboda pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nifi-minifi-cpp.git


The following commit(s) were added to refs/heads/master by this push:
     new ca35388  MINIFICPP-1221 - Cannot attach to running MiNiFi process.
ca35388 is described below

commit ca3538886e075918730846bf9753abffd8c83503
Author: Adam Debreceni <ad...@protonmail.com>
AuthorDate: Wed May 13 11:20:43 2020 +0200

    MINIFICPP-1221 - Cannot attach to running MiNiFi process.
    
    Signed-off-by: Arpad Boda <ab...@apache.org>
    
    This closes #783
---
 main/MiNiFiMain.cpp | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/main/MiNiFiMain.cpp b/main/MiNiFiMain.cpp
index 465ed34..b3205d5 100644
--- a/main/MiNiFiMain.cpp
+++ b/main/MiNiFiMain.cpp
@@ -315,14 +315,15 @@ int main(int argc, char **argv) {
    * yield without the need for a more complex construct and
    * a spin lock
    */
-  if (sem_wait(running) == -1)
-    perror("sem_wait");
+  int ret_val;
+  while ((ret_val = sem_wait(running)) == -1 && errno == EINTR);
+  if(ret_val == -1) perror("sem_wait");
 
-  if (sem_close(running) == -1)
-    perror("sem_close");
+  while ((ret_val = sem_close(running)) == -1 && errno == EINTR);
+  if(ret_val == -1) perror("sem_close");
 
-  if (sem_unlink("/MiNiFiMain") == -1)
-    perror("sem_unlink");
+  while ((ret_val = sem_unlink("/MiNiFiMain")) == -1 && errno == EINTR);
+  if(ret_val == -1) perror("sem_unlink");
 
   /**
    * Trigger unload -- wait stop_wait_time