JavaResults* launchJavaVM( char* args[] )
{
JavaResults* jvmResults = NULL;
pid_t jvmProcess;
int exitCode;
#ifdef MOZILLA_FIX
fixEnvForMozilla();
#endif /* MOZILLA_FIX */
jvmProcess = fork();
if (jvmProcess == 0)
{
/* Child process ... start the JVM */
execv(args[0], args);
/* The JVM would not start ... return error code to parent process. */
/* TODO, how to distinguish this as a launch problem to the other process? */
_exit(errno);
}
jvmResults = malloc(sizeof(JavaResults));
memset(jvmResults, 0, sizeof(JavaResults));
/* If the JVM is still running, wait for it to terminate. */
if (jvmProcess != 0)
{
waitpid(jvmProcess, &exitCode, 0);
if (WIFEXITED(exitCode))
/* TODO, this should really be a runResult if we could distinguish the launch problem above */
jvmResults->launchResult = WEXITSTATUS(exitCode);
}
return jvmResults;
}
JavaResults* launchJavaVM( char* args[] )
{
JavaResults* jvmResults = NULL;
pid_t jvmProcess, finishedProcess = 0;
int exitCode;
#ifdef MOZILLA_FIX
fixEnvForMozilla();
#endif /* MOZILLA_FIX */
jvmProcess = fork();
if (jvmProcess == 0)
{
/* Child process ... start the JVM */
execv(args[0], args);
/* The JVM would not start ... return error code to parent process. */
/* TODO, how to distinguish this as a launch problem to the other process? */
_exit(errno);
}
jvmResults = malloc(sizeof(JavaResults));
memset(jvmResults, 0, sizeof(JavaResults));
/* If the JVM is still running, wait for it to terminate. */
if (jvmProcess != 0)
{
/* When attempting a file open, we need to spin the event loop
* for setAppWindowTimerProc to run. When that succeeds or times out,
* we can stop the event loop and just wait on the child process.
*/
if (openFilePath != NULL) {
struct timespec sleepTime;
sleepTime.tv_sec = 0;
sleepTime.tv_nsec = 5e+8; // 500 milliseconds
while(openFileTimeout > 0 && !windowPropertySet && (finishedProcess = waitpid(jvmProcess, &exitCode, WNOHANG)) == 0) {
dispatchMessages();
nanosleep(&sleepTime, NULL);
}
}
if (finishedProcess == 0)
waitpid(jvmProcess, &exitCode, 0);
if (WIFEXITED(exitCode))
/* TODO, this should really be a runResult if we could distinguish the launch problem above */
jvmResults->launchResult = WEXITSTATUS(exitCode);
}
return jvmResults;
}
