Remove Cygwin-specific code from pg_ctl

This code has been there for a long time, but it's never really been
needed. Cygwin has its own utility for registering, unregistering,
stopping and starting Windows services, and that's what's used in the
Cygwin postgres packages. So now pg_ctl for Cygwin looks like it is for
any Unix platform.

Michael Paquier and me

src/bin/pg_ctl/pg_ctl.c

@@ -39,13 +39,6 @@
 #include "getopt_long.h"
 #include "miscadmin.h"
 
-#if defined(__CYGWIN__)
-#include <sys/cygwin.h>
-#include <windows.h>
-/* Cygwin defines WIN32 in windows.h, but we don't want it. */
-#undef WIN32
-#endif
-
 /* PID can be negative for standalone backend */
 typedef long pgpid_t;
 
@@ -105,7 +98,7 @@ static char backup_file[MAXPGPATH];
 static char recovery_file[MAXPGPATH];
 static char promote_file[MAXPGPATH];
 
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 static DWORD pgctl_start_type = SERVICE_AUTO_START;
 static SERVICE_STATUS status;
 static SERVICE_STATUS_HANDLE hStatus = (SERVICE_STATUS_HANDLE) 0;
@@ -133,7 +126,7 @@ static void do_kill(pgpid_t pid);
 static void print_msg(const char *msg);
 static void adjust_data_dir(void);
 
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 #if (_MSC_VER >= 1800)
 #include <versionhelpers.h>
 #else
@@ -165,7 +158,7 @@ static void unlimit_core_size(void);
 #endif
 
 
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 static void
 write_eventlog(int level, const char *line)
 {
@@ -207,20 +200,11 @@ write_stderr(const char *fmt,...)
 	va_list		ap;
 
 	va_start(ap, fmt);
-#if !defined(WIN32) && !defined(__CYGWIN__)
+#ifndef WIN32
 	/* On Unix, we just fprintf to stderr */
 	vfprintf(stderr, fmt, ap);
 #else
 
-/*
- * On Cygwin, we don't yet have a reliable mechanism to detect when
- * we're being run as a service, so fall back to the old (and broken)
- * stderr test.
- */
-#ifdef __CYGWIN__
-#define	pgwin32_is_service()	(isatty(fileno(stderr)))
-#endif
-
 	/*
 	 * On Win32, we print to stderr if running on a console, or write to
 	 * eventlog if running as a service
@@ -718,7 +702,7 @@ test_postmaster_connection(pgpid_t pm_pid, bool do_checkpoint)
 #endif
 
 		/* No response, or startup still in process; wait */
-#if defined(WIN32)
+#ifdef WIN32
 		if (do_checkpoint)
 		{
 			/*
@@ -1342,7 +1326,7 @@ do_kill(pgpid_t pid)
 	}
 }
 
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 
 #if (_MSC_VER < 1800)
 static bool
@@ -1408,20 +1392,6 @@ pgwin32_CommandLine(bool registration)
 		}
 	}
 
-#ifdef __CYGWIN__
-	/* need to convert to windows path */
-	{
-		char		buf[MAXPGPATH];
-
-#if CYGWIN_VERSION_DLL_MAJOR >= 1007
-		cygwin_conv_path(CCP_POSIX_TO_WIN_A, cmdPath, buf, sizeof(buf));
-#else
-		cygwin_conv_to_full_win32_path(cmdPath, buf);
-#endif
-		strcpy(cmdPath, buf);
-	}
-#endif
-
 	/* if path does not end in .exe, append it */
 	if (strlen(cmdPath) < 4 ||
 		pg_strcasecmp(cmdPath + strlen(cmdPath) - 4, ".exe") != 0)
@@ -1775,10 +1745,8 @@ CreateRestrictedProcess(char *cmd, PROCESS_INFORMATION *processInfo, bool as_ser
 	if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ALL_ACCESS, &origToken))
 	{
 		/*
-		 * Most Windows targets make DWORD a 32-bit unsigned long.  Cygwin
-		 * x86_64, an LP64 target, makes it a 32-bit unsigned int.  In code
-		 * built for Cygwin as well as for native Windows targets, cast DWORD
-		 * before printing.
+		 * Most Windows targets make DWORD a 32-bit unsigned long, but
+		 * in case it doesn't cast DWORD before printing.
 		 */
 		write_stderr(_("%s: could not open process token: error code %lu\n"),
 					 progname, (unsigned long) GetLastError());
@@ -1819,10 +1787,7 @@ CreateRestrictedProcess(char *cmd, PROCESS_INFORMATION *processInfo, bool as_ser
 		return 0;
 	}
 
-#ifndef __CYGWIN__
 	AddUserToTokenDacl(restrictedToken);
-#endif
-
 	r = CreateProcessAsUser(restrictedToken, NULL, cmd, NULL, NULL, TRUE, CREATE_SUSPENDED, NULL, NULL, &si, processInfo);
 
 	Kernel32Handle = LoadLibrary("KERNEL32.DLL");
@@ -1926,7 +1891,7 @@ CreateRestrictedProcess(char *cmd, PROCESS_INFORMATION *processInfo, bool as_ser
 	 */
 	return r;
 }
-#endif   /* defined(WIN32) || defined(__CYGWIN__) */
+#endif   /* WIN32 */
 
 static void
 do_advice(void)
@@ -1950,7 +1915,7 @@ do_help(void)
 	printf(_("  %s status  [-D DATADIR]\n"), progname);
 	printf(_("  %s promote [-D DATADIR] [-s]\n"), progname);
 	printf(_("  %s kill    SIGNALNAME PID\n"), progname);
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 	printf(_("  %s register   [-N SERVICENAME] [-U USERNAME] [-P PASSWORD] [-D DATADIR]\n"
 			 "                    [-S START-TYPE] [-w] [-t SECS] [-o \"OPTIONS\"]\n"), progname);
 	printf(_("  %s unregister [-N SERVICENAME]\n"), progname);
@@ -1958,7 +1923,7 @@ do_help(void)
 
 	printf(_("\nCommon options:\n"));
 	printf(_("  -D, --pgdata=DATADIR   location of the database storage area\n"));
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 	printf(_("  -e SOURCE              event source for logging when running as a service\n"));
 #endif
 	printf(_("  -s, --silent           only print errors, no informational messages\n"));
@@ -1991,7 +1956,7 @@ do_help(void)
 	printf(_("\nAllowed signal names for kill:\n"));
 	printf("  ABRT HUP INT QUIT TERM USR1 USR2\n");
 
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 	printf(_("\nOptions for register and unregister:\n"));
 	printf(_("  -N SERVICENAME  service name with which to register PostgreSQL server\n"));
 	printf(_("  -P PASSWORD     password of account to register PostgreSQL server\n"));
@@ -2067,7 +2032,7 @@ set_sig(char *signame)
 }
 
 
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 static void
 set_starttype(char *starttypeopt)
 {
@@ -2167,7 +2132,7 @@ main(int argc, char **argv)
 	int			c;
 	pgpid_t		killproc = 0;
 
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 	setvbuf(stderr, NULL, _IONBF, 0);
 #endif
 
@@ -2280,7 +2245,7 @@ main(int argc, char **argv)
 					silent_mode = true;
 					break;
 				case 'S':
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 					set_starttype(optarg);
 #else
 					write_stderr(_("%s: -S option not supported on this platform\n"),
@@ -2353,7 +2318,7 @@ main(int argc, char **argv)
 				set_sig(argv[++optind]);
 				killproc = atol(argv[++optind]);
 			}
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 			else if (strcmp(argv[optind], "register") == 0)
 				ctl_command = REGISTER_COMMAND;
 			else if (strcmp(argv[optind], "unregister") == 0)
@@ -2457,7 +2422,7 @@ main(int argc, char **argv)
 		case KILL_COMMAND:
 			do_kill(killproc);
 			break;
-#if defined(WIN32) || defined(__CYGWIN__)
+#ifdef WIN32
 		case REGISTER_COMMAND:
 			pgwin32_doRegister();
 			break;