/**
* Fork and run parent and child process.
*
* The parent is the b2g process and child for Nuwa.
*/
static int
RunProcesses(int argc, const char *argv[], FdArray& aReservedFds)
{
/*
* The original main() of the b2g process. It is renamed to
* b2g_main() for the b2g loader.
*/
int b2g_main(int argc, const char *argv[]);
int ipcSockets[2] = {-1, -1};
int r = socketpair(AF_LOCAL, SOCK_STREAM, 0, ipcSockets);
ASSERT(r == 0);
int parentSock = ipcSockets[0];
int childSock = ipcSockets[1];
r = fcntl(parentSock, F_SETFL, O_NONBLOCK);
ASSERT(r != -1);
r = fcntl(childSock, F_SETFL, O_NONBLOCK);
ASSERT(r != -1);
pid_t pid = fork();
ASSERT(pid >= 0);
bool isChildProcess = pid == 0;
close(isChildProcess ? parentSock : childSock);
if (isChildProcess) {
/* The Nuwa process */
/* This provides the IPC service of loading Nuwa at the process.
* The b2g process would send a IPC message of loading Nuwa
* as the replacement of forking and executing plugin-container.
*/
return XRE_ProcLoaderServiceRun(getppid(), childSock, argc, argv,
aReservedFds);
}
// Reap zombie child process.
struct sigaction sa;
sa.sa_handler = SIG_IGN;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sigaction(SIGCHLD, &sa, nullptr);
// The b2g process
int childPid = pid;
XRE_ProcLoaderClientInit(childPid, parentSock, aReservedFds);
return b2g_main(argc, argv);
}
/**
* Fork and run parent and child process.
*
* The parent is the b2g process and child for Nuwa.
*/
static int
RunProcesses(int argc, const char *argv[])
{
/*
* The original main() of the b2g process. It is renamed to
* b2g_main() for the b2g loader.
*/
int b2g_main(int argc, const char *argv[]);
int ipcSockets[2] = {-1, -1};
int r = socketpair(AF_LOCAL, SOCK_STREAM, 0, ipcSockets);
ASSERT(r == 0);
int parentSock = ipcSockets[0];
int childSock = ipcSockets[1];
r = fcntl(parentSock, F_SETFL, O_NONBLOCK);
ASSERT(r != -1);
r = fcntl(childSock, F_SETFL, O_NONBLOCK);
ASSERT(r != -1);
pid_t pid = fork();
ASSERT(pid >= 0);
bool isChildProcess = pid == 0;
close(isChildProcess ? parentSock : childSock);
if (isChildProcess) {
/* The Nuwa process */
/* This provides the IPC service of loading Nuwa at the process.
* The b2g process would send a IPC message of loading Nuwa
* as the replacement of forking and executing plugin-container.
*/
return XRE_ProcLoaderServiceRun(getppid(), childSock, argc, argv);
}
// The b2g process
int childPid = pid;
XRE_ProcLoaderClientInit(childPid, parentSock);
return b2g_main(argc, argv);
}
