Revision: 7855
http://playerstage.svn.sourceforge.net/playerstage/?rev=7855&view=rev
Author: robotos
Date: 2009-06-18 11:26:06 +0000 (Thu, 18 Jun 2009)
Log Message:
-----------
errors when a previous gazebo crashed more self explained
Modified Paths:
--------------
code/gazebo/trunk/libgazebo/Server.cc
Modified: code/gazebo/trunk/libgazebo/Server.cc
===================================================================
--- code/gazebo/trunk/libgazebo/Server.cc 2009-06-18 06:40:56 UTC (rev
7854)
+++ code/gazebo/trunk/libgazebo/Server.cc 2009-06-18 11:26:06 UTC (rev
7855)
@@ -105,32 +105,37 @@
FILE *fp = fopen(pidfn.c_str(), "r");
if(fp)
{
- int pid;
- if (fscanf(fp, "%d", &pid) != 0)
- std::cerr << "Error in libgazebo Server.\n";
-
+ int pid = 0;
+ fscanf(fp, "%d", &pid);
fclose(fp);
- std::cout << "found a pid file: pid=" << pid << "\n";
-
- if(kill(pid, 0) == 0)
+
+ if (pid != 0)
{
- // a gazebo process is still alive.
- errStream << "directory [" << this->filename
- << "] already exists (previous crash?)\n"
- << "gazebo (pid=" << pid << ") is still running.";
- throw(errStream.str());
- }
- else
- {
- // the gazebo process is not alive.
- // remove directory.
- std::cout << "The gazebo process is not alive.\n";
+ if(kill(pid, 0) == 0)
+ {
+ // a gazebo process is still alive.
+ errStream << "directory [" << this->filename
+ << "] already exists (previous crash?)\n"
+ << "gazebo (pid=" << pid << ") is still running.\n"
+ << "re-launch gazebo with a different server id or kill the
previous instance" ;
+ throw(errStream.str());
+ }
+ else
+ {
+ // the gazebo process is not alive.
+ // remove directory.
+ std::cout << "directory [" << this->filename
+ << "] already exists (previous crash?)\n"
+ << "but the owner gazebo server (pid=" << pid << ") is not
running.\n"
+ << "deleting the directory [" << this-> filename
+ << " old information" ;
- // remove the existing directory.
- std::string cmd = "rm -rf '" + this->filename + "'";
- if(system(cmd.c_str()) != 0) {
- errStream << "couldn't remove directory [" << this->filename << "]";
- throw(errStream.str());
+ // remove the existing directory.
+ std::string cmd = "rm -rf '" + this->filename + "'";
+ if(system(cmd.c_str()) != 0) {
+ errStream << "couldn't remove directory [" << this->filename <<
"]";
+ throw(errStream.str());
+ }
}
}
}
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