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Process: Fix fork error handling 

refs #5617
This commit is contained in:
Noah Hilverling 2017-10-23 11:01:42 +02:00
parent 7930ae5094
commit 3e8f78e2cc
1 changed files with 16 additions and 6 deletions
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22
lib/base/process.cpp
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@ -138,11 +138,10 @@ static Value ProcessSpawnImpl(struct msghdr *msgh, const Dictionary::Ptr& reques
pid_t pid = fork();
if (pid < 0) {
BOOST_THROW_EXCEPTION(posix_error()
<< boost::errinfo_api_function("fork")
<< boost::errinfo_errno(errno));
}
int errorCode = 0;
if (pid < 0)
errorCode = errno;
if (pid == 0) {
// child process
@ -203,6 +202,8 @@ static Value ProcessSpawnImpl(struct msghdr *msgh, const Dictionary::Ptr& reques
Dictionary::Ptr response = new Dictionary();
response->Set("rc", pid);
if (errorCode)
response->Set("errno", errorCode);
return response;
}
@ -424,6 +425,10 @@ send_message:
String jresponse = String(buf, buf + rc);
Dictionary::Ptr response = JsonDecode(jresponse);
if (response->Get("rc") == -1)
errno = response->Get("errno");
return response->Get("rc");
}
@ -978,6 +983,11 @@ void Process::Run(const boost::function<void(const ProcessResult&)>& callback)
m_Process = ProcessSpawn(m_Arguments, m_ExtraEnvironment, m_AdjustPriority, fds);
m_PID = m_Process;
if (m_PID == -1) {
m_OutputStream << "Fork failed with error code " << errno << " (" << Utility::FormatErrorNumber(errno) << ")";
Log(LogCritical, "Process", m_OutputStream.str());
}
Log(LogNotice, "Process")
<< "Running command " << PrettyPrintArguments(m_Arguments) << ": PID " << m_PID;
@ -1079,7 +1089,7 @@ bool Process::DoEvents(void)
<< "PID " << m_PID << " (" << PrettyPrintArguments(m_Arguments) << ") terminated with exit code " << exitcode;
#else /* _WIN32 */
int status, exitcode;
if (could_not_kill) {
if (could_not_kill || m_PID == -1) {
exitcode = 128;
} else if (ProcessWaitPID(m_Process, &status) != m_Process) {
exitcode = 128;