From d66c5768caaee16a0c2c2c6411858d23fb9f21a9 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 17 Oct 2013 08:11:21 +0000
Subject: win32.c: check by module handles

* win32/win32.c (console_emulator_p): check by comparison between
  module handle of WriteConsoleW and kernel32.dll.
* configure.in, win32/Makefile.sub, win32/setup.mak: no longer need
  psapi.lib.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43331 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 win32/Makefile.sub |  8 +-------
 win32/setup.mak    |  2 +-
 win32/win32.c      | 44 ++++++++++++--------------------------------
 3 files changed, 14 insertions(+), 40 deletions(-)

(limited to 'win32')

diff --git a/win32/Makefile.sub b/win32/Makefile.sub
index ba936d2031..ee763402b8 100644
--- a/win32/Makefile.sub
+++ b/win32/Makefile.sub
@@ -232,7 +232,7 @@ LIBS = oldnames.lib user32.lib advapi32.lib shell32.lib ws2_32.lib
 !if $(MSC_VER) >= 1400
 LIBS = $(LIBS) iphlpapi.lib
 !endif
-LIBS = $(LIBS) psapi.lib imagehlp.lib shlwapi.lib $(EXTLIBS)
+LIBS = $(LIBS) imagehlp.lib shlwapi.lib $(EXTLIBS)
 !endif
 !if !defined(MISSING)
 MISSING = acosh.obj cbrt.obj crypt.obj erf.obj ffs.obj langinfo.obj lgamma_r.obj strlcat.obj strlcpy.obj tgamma.obj win32/win32.obj win32/file.obj setproctitle.obj
@@ -308,9 +308,6 @@ STACK = $(STACK),$(STACK_COMMIT)
 !endif
 ORGLIBPATH = $(LIB)
 
-!if !defined(HAVE_PSAPI_H)
-HAVE_PSAPI_H = 0
-!endif
 #### End of system configuration section. ####
 
 LIBRUBY_A     = $(RUBY_SO_NAME)-static.lib
@@ -681,9 +678,6 @@ $(CONFIG_H): $(MKFILES) $(srcdir)/win32/Makefile.sub $(win_srcdir)/Makefile.sub
 #define HAVE_DAYLIGHT 1
 #define HAVE_GMTIME_R 1
 #define HAVE_TYPE_NET_LUID 1
-!if $(HAVE_PSAPI_H)
-#define HAVE_PSAPI_H 1
-!endif
 #define SETPGRP_VOID 1
 #define RSHIFT(x,y) ((x)>>(int)y)
 #define HAVE_RB_FD_INIT 1
diff --git a/win32/setup.mak b/win32/setup.mak
index 73f4f25682..458212bb7b 100644
--- a/win32/setup.mak
+++ b/win32/setup.mak
@@ -100,7 +100,7 @@ int main(void) {FILE *volatile f = stdin; return 0;}
 	@$(WIN32DIR:/=\)\rtname conftest.exe >>$(MAKEFILE)
 	@$(WIN32DIR:/=\)\rm.bat conftest.*
 
--headers-: check-psapi.h
+-headers-: nul
 
 check-psapi.h: nul
 	($(CC) -MD <<conftest.c psapi.lib -link && echo>>$(MAKEFILE) HAVE_PSAPI_H=1) & $(WIN32DIR:/=\)\rm.bat conftest.*
diff --git a/win32/win32.c b/win32/win32.c
index 46bdbf99e4..e1ac4054fd 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -39,12 +39,6 @@
 #include <share.h>
 #include <shlobj.h>
 #include <mbstring.h>
-#ifdef HAVE_PSAPI_H
-#include <psapi.h>
-# define CHECK_CONSOLE_EMULATOR 1
-#else
-# define CHECK_CONSOLE_EMULATOR 0
-#endif
 #include <shlwapi.h>
 #if _MSC_VER >= 1400
 #include <crtdbg.h>
@@ -611,11 +605,7 @@ static CRITICAL_SECTION select_mutex;
 static int NtSocketsInitialized = 0;
 static st_table *socklist = NULL;
 static st_table *conlist = NULL;
-#if CHECK_CONSOLE_EMULATOR
 #define conlist_disabled ((st_table *)-1)
-#else
-#define conlist_disabled ((st_table *)NULL)
-#endif
 static char *envarea;
 static char *uenvarea;
 
@@ -5843,36 +5833,26 @@ rb_w32_pipe(int fds[2])
     return 0;
 }
 
-#if CHECK_CONSOLE_EMULATOR
 /* License: Ruby's */
 static int
 console_emulator_p(void)
 {
-    HMODULE module_buf[10], *pmodule = module_buf;
-    DWORD nmodule = numberof(module_buf), needed = 0, i;
-    HANDLE proch = GetCurrentProcess();
+#ifdef _WIN32_WCE
+    return FALSE;
+#else
+    const void *const func = WriteConsoleW;
+    HMODULE k;
+    MEMORY_BASIC_INFORMATION m;
 
-    if (!EnumProcessModules(proch, pmodule, nmodule * sizeof(HMODULE), &needed))
+    memset(&m, 0, sizeof(m));
+    if (!VirtualQuery(func, &m, sizeof(m))) {
 	return FALSE;
-    if (needed / sizeof(HMODULE) > nmodule) {
-	nmodule = needed / sizeof(HMODULE);
-	pmodule = alloca(sizeof(HMODULE) * nmodule);
-	if (!EnumProcessModules(proch, pmodule, needed, &needed))
-	    return FALSE;
-    }
-    for (i = 0; i < nmodule; i++) {
-	WCHAR modname[MAX_PATH];
-
-	if (GetModuleBaseNameW(proch, pmodule[i], modname, numberof(modname))) {
-	    if (PathMatchSpecW(modname, L"conemu*.dll")) return TRUE;
-        }
     }
-
-    return 0;
-}
-#else
-#define console_emulator_p() 0
+    k = GetModuleHandle("kernel32.dll");
+    if (!k) return FALSE;
+    return (HMODULE)m.AllocationBase != k;
 #endif
+}
 
 /* License: Ruby's */
 static struct constat *
-- 
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