diff options
Diffstat (limited to 'src/backend/utils/init/miscinit.c')
| -rw-r--r-- | src/backend/utils/init/miscinit.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/backend/utils/init/miscinit.c b/src/backend/utils/init/miscinit.c index 7f386aee805..414b05e3b8c 100644 --- a/src/backend/utils/init/miscinit.c +++ b/src/backend/utils/init/miscinit.c @@ -16,9 +16,11 @@ #include <sys/param.h> #include <signal.h> +#include <time.h> #include <sys/file.h> #include <sys/stat.h> #include <sys/time.h> +#include <sys/types.h> #include <fcntl.h> #include <unistd.h> #include <grp.h> @@ -160,6 +162,70 @@ static int SecurityRestrictionContext = 0; /* We also remember if a SET ROLE is currently active */ static bool SetRoleIsActive = false; +/* + * Initialize the basic environment for a postmaster child + * + * Should be called as early as possible after the child's startup. + */ +void +InitPostmasterChild(void) +{ + IsUnderPostmaster = true; /* we are a postmaster subprocess now */ + + MyProcPid = getpid(); /* reset MyProcPid */ + + MyStartTime = time(NULL); /* set our start time in case we call elog */ + + /* + * make sure stderr is in binary mode before anything can possibly be + * written to it, in case it's actually the syslogger pipe, so the pipe + * chunking protocol isn't disturbed. Non-logpipe data gets translated on + * redirection (e.g. via pg_ctl -l) anyway. + */ +#ifdef WIN32 + _setmode(fileno(stderr), _O_BINARY); +#endif + + /* We don't want the postmaster's proc_exit() handlers */ + on_exit_reset(); + + /* + * If possible, make this process a group leader, so that the postmaster + * can signal any child processes too. Not all processes will have + * children, but for consistency we , but for consistency we make all + * postmaster child processes do this. + */ +#ifdef HAVE_SETSID + if (setsid() < 0) + elog(FATAL, "setsid() failed: %m"); +#endif +} + +/* + * Initialize the basic environment for a standalone process. + * + * argv0 has to be suitable to find the program's executable. + */ +void +InitStandaloneProcess(const char *argv0) +{ + Assert(!IsPostmasterEnvironment); + + MyProcPid = getpid(); /* reset MyProcPid */ + + MyStartTime = time(NULL); /* set our start time in case we call elog */ + + /* 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); +} /* * GetUserId - get the current effective user ID. |