Function InitStandaloneProcess

src/backend/utils/init/miscinit.c:174–204

* Initialize the basic environment for a standalone process. * * argv0 has to be suitable to find the program's executable. */

 * argv0 has to be suitable to find the program's executable.
 */
void
InitStandaloneProcess(const char *argv0)
{
	Assert(!IsPostmasterEnvironment);

	InitProcessGlobals();

	/* Initialize process-local latch support */
	InitializeLatchSupport();
	MyLatch = &LocalLatchData;
	InitLatch(MyLatch);
	InitializeLatchWaitSet();

	/*
	 * For consistency with InitPostmasterChild, initialize signal mask here.
	 * But we don't unblock SIGQUIT or provide a default handler for it.
	 */
	pqinitmask();
	PG_SETMASK(&BlockSig);

	/* Compute paths, no postmaster to inherit from */
	if (my_exec_path[0] == '\0')
	{
		if (find_my_exec(argv0, my_exec_path) < 0)
			elog(FATAL, "%s: could not locate my own executable path",
				 argv0);
	}

	if (pkglib_path[0] == '\0')
		get_pkglib_path(my_exec_path, pkglib_path);
}

void
SwitchToSharedLatch(void)