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-rw-r--r--w32/compat/posixfcn.c258
-rw-r--r--w32/include/sub_proc.h4
-rw-r--r--w32/subproc/sub_proc.c24
3 files changed, 282 insertions, 4 deletions
diff --git a/w32/compat/posixfcn.c b/w32/compat/posixfcn.c
new file mode 100644
index 0000000..90534d0
--- /dev/null
+++ b/w32/compat/posixfcn.c
@@ -0,0 +1,258 @@
+/* Replacements for Posix functions and Posix functionality for MS-Windows.
+
+Copyright (C) 2013 Free Software Foundation, Inc.
+This file is part of GNU Make.
+
+GNU Make is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3 of the License, or (at your option) any later
+version.
+
+GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#include <string.h>
+#include <io.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <windows.h>
+
+#include "makeint.h"
+#include "job.h"
+
+#ifdef OUTPUT_SYNC
+/* Support for OUTPUT_SYNC and related functionality. */
+
+/* Emulation of fcntl that supports only F_GETFD and F_SETLKW. */
+int
+fcntl (intptr_t fd, int cmd, ...)
+{
+ va_list ap;
+
+ va_start (ap, cmd);
+
+ switch (cmd)
+ {
+ case F_GETFD:
+ va_end (ap);
+ /* Could have used GetHandleInformation, but that isn't
+ supported on Windows 9X. */
+ if (_get_osfhandle (fd) == -1)
+ return -1;
+ return 0;
+ case F_SETLKW:
+ {
+ void *buf = va_arg (ap, void *);
+ struct flock *fl = (struct flock *)buf;
+ HANDLE hmutex = (HANDLE)fd;
+ static struct flock last_fl;
+ short last_type = last_fl.l_type;
+
+ va_end (ap);
+
+ if (hmutex == INVALID_HANDLE_VALUE || !hmutex)
+ return -1;
+
+ last_fl = *fl;
+
+ switch (fl->l_type)
+ {
+
+ case F_WRLCK:
+ {
+ DWORD result;
+
+ if (last_type == F_WRLCK)
+ {
+ /* Don't call WaitForSingleObject if we already
+ own the mutex, because doing so will require
+ us to call ReleaseMutex an equal number of
+ times, before the mutex is actually
+ released. */
+ return 0;
+ }
+
+ result = WaitForSingleObject (hmutex, INFINITE);
+ switch (result)
+ {
+ case WAIT_OBJECT_0:
+ /* We don't care if the mutex owner crashed or
+ exited. */
+ case WAIT_ABANDONED:
+ return 0;
+ case WAIT_FAILED:
+ case WAIT_TIMEOUT: /* cannot happen, really */
+ {
+ DWORD err = GetLastError ();
+
+ /* Invalidate the last command. */
+ memset (&last_fl, 0, sizeof (last_fl));
+
+ switch (err)
+ {
+ case ERROR_INVALID_HANDLE:
+ case ERROR_INVALID_FUNCTION:
+ errno = EINVAL;
+ return -1;
+ default:
+ errno = EDEADLOCK;
+ return -1;
+ }
+ }
+ }
+ }
+ case F_UNLCK:
+ {
+ /* FIXME: Perhaps we should call ReleaseMutex
+ repatedly until it errors out, to make sure the
+ mutext is released even if we somehow managed to
+ to take ownership multiple times? */
+ BOOL status = ReleaseMutex (hmutex);
+
+ if (status)
+ return 0;
+ else
+ {
+ DWORD err = GetLastError ();
+
+ if (err == ERROR_NOT_OWNER)
+ errno = EPERM;
+ else
+ {
+ memset (&last_fl, 0, sizeof (last_fl));
+ errno = EINVAL;
+ }
+ return -1;
+ }
+ }
+ default:
+ errno = ENOSYS;
+ return -1;
+ }
+ }
+ default:
+ errno = ENOSYS;
+ va_end (ap);
+ return -1;
+ }
+}
+
+static intptr_t mutex_handle = -1;
+
+/* Record in a static variable the mutex handle we were requested to
+ use. That nameless mutex was created by the top-level Make, and
+ its handle was passed to us via inheritance. The value of that
+ handle is passed via the command-line arguments, so that we know
+ which handle to use. */
+void
+record_sync_mutex (const char *str)
+{
+ char *endp;
+ intptr_t hmutex = strtol (str, &endp, 16);
+
+ if (*endp == '\0')
+ mutex_handle = hmutex;
+ else
+ {
+ mutex_handle = -1;
+ errno = EINVAL;
+ }
+}
+
+/* Create a new mutex or reuse one created by our parent. */
+intptr_t
+create_mutex (void)
+{
+ SECURITY_ATTRIBUTES secattr;
+ intptr_t hmutex = -1;
+
+ /* If we have a mutex handle passed from the parent Make, just use
+ that. */
+ if (mutex_handle > 0)
+ return mutex_handle;
+
+ /* We are the top-level Make, and we want the handle to be inherited
+ by our child processes. */
+ secattr.nLength = sizeof (secattr);
+ secattr.lpSecurityDescriptor = NULL; /* use default security descriptor */
+ secattr.bInheritHandle = TRUE;
+
+ hmutex = (intptr_t)CreateMutex (&secattr, FALSE, NULL);
+ if (!hmutex)
+ {
+ DWORD err = GetLastError ();
+
+ fprintf (stderr, "CreateMutex: error %lu\n", err);
+ errno = ENOLCK;
+ hmutex = -1;
+ }
+
+ mutex_handle = hmutex;
+ return hmutex;
+}
+
+/* Return non-zero if F1 and F2 are 2 streams representing the same
+ file or pipe or device. */
+int
+same_stream (FILE *f1, FILE *f2)
+{
+ HANDLE fh1 = (HANDLE)_get_osfhandle (fileno (f1));
+ HANDLE fh2 = (HANDLE)_get_osfhandle (fileno (f2));
+
+ /* Invalid file descriptors get treated as different streams. */
+ if (fh1 && fh1 != INVALID_HANDLE_VALUE
+ && fh2 && fh2 != INVALID_HANDLE_VALUE)
+ {
+ if (fh1 == fh2)
+ return 1;
+ else
+ {
+ DWORD ftyp1 = GetFileType (fh1), ftyp2 = GetFileType (fh2);
+
+ if (ftyp1 != ftyp2
+ || ftyp1 == FILE_TYPE_UNKNOWN || ftyp2 == FILE_TYPE_UNKNOWN)
+ return 0;
+ else if (ftyp1 == FILE_TYPE_CHAR)
+ {
+ /* For character devices, check if they both refer to a
+ console. This loses if both handles refer to the
+ null device (FIXME!), but in that case we don't care
+ in the context of Make. */
+ DWORD conmode1, conmode2;
+
+ /* Each process on Windows can have at most 1 console,
+ so if both handles are for the console device, they
+ are the same. We also compare the console mode to
+ distinguish between tsdin and stdout/stderr. */
+ if (GetConsoleMode (fh1, &conmode1)
+ && GetConsoleMode (fh2, &conmode2)
+ && conmode1 == conmode2)
+ return 1;
+ }
+ else
+ {
+ /* For disk files and pipes, compare their unique
+ attributes. */
+ BY_HANDLE_FILE_INFORMATION bhfi1, bhfi2;
+
+ /* Pipes get zero in the volume serial number, but do
+ appear to have meaningful information in file index
+ attributes. We test file attributes as well, for a
+ good measure. */
+ if (GetFileInformationByHandle (fh1, &bhfi1)
+ && GetFileInformationByHandle (fh2, &bhfi2))
+ return (bhfi1.dwVolumeSerialNumber == bhfi2.dwVolumeSerialNumber
+ && bhfi1.nFileIndexLow == bhfi2.nFileIndexLow
+ && bhfi1.nFileIndexHigh == bhfi2.nFileIndexHigh
+ && bhfi1.dwFileAttributes == bhfi2.dwFileAttributes);
+ }
+ }
+ }
+ return 0;
+}
+
+#endif /* OUTPUT_SYNC */
diff --git a/w32/include/sub_proc.h b/w32/include/sub_proc.h
index 0aeaf00..d209aff 100644
--- a/w32/include/sub_proc.h
+++ b/w32/include/sub_proc.h
@@ -41,7 +41,8 @@ EXTERN_DECL(long process_file_io, (HANDLE proc));
EXTERN_DECL(void process_cleanup, (HANDLE proc));
EXTERN_DECL(HANDLE process_wait_for_any, (int block, DWORD* pdwWaitStatus));
EXTERN_DECL(void process_register, (HANDLE proc));
-EXTERN_DECL(HANDLE process_easy, (char** argv, char** env));
+EXTERN_DECL(HANDLE process_easy, (char** argv, char** env,
+ int outfd, int errfd));
EXTERN_DECL(BOOL process_kill, (HANDLE proc, int signal));
EXTERN_DECL(int process_used_slots, (VOID_DECL));
@@ -55,6 +56,7 @@ EXTERN_DECL(char * process_errbuf, (HANDLE proc));
EXTERN_DECL(int process_outcnt, (HANDLE proc));
EXTERN_DECL(int process_errcnt, (HANDLE proc));
EXTERN_DECL(void process_pipes, (HANDLE proc, int pipes[3]));
+EXTERN_DECL(void process_noinherit, (int fildes));
/* jobserver routines */
EXTERN_DECL(int open_jobserver_semaphore, (const char* name));
diff --git a/w32/subproc/sub_proc.c b/w32/subproc/sub_proc.c
index 6cc3081..2c36777 100644
--- a/w32/subproc/sub_proc.c
+++ b/w32/subproc/sub_proc.c
@@ -17,6 +17,7 @@ this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdlib.h>
#include <stdio.h>
+#include <io.h> /* for _get_osfhandle */
#ifdef _MSC_VER
# include <stddef.h> /* for intptr_t */
#else
@@ -341,6 +342,15 @@ process_exit_code(HANDLE proc)
return (((sub_process *)proc)->exit_code);
}
+void
+process_noinherit(int fd)
+{
+ HANDLE fh = (HANDLE)_get_osfhandle(fd);
+
+ if (fh && fh != INVALID_HANDLE_VALUE)
+ SetHandleInformation(fh, HANDLE_FLAG_INHERIT, 0);
+}
+
/*
2006-02:
All the following functions are currently unused.
@@ -1340,7 +1350,9 @@ make_command_line( char *shell_name, char *full_exec_path, char **argv)
HANDLE
process_easy(
char **argv,
- char **envp)
+ char **envp,
+ int outfd,
+ int errfd)
{
HANDLE hIn = INVALID_HANDLE_VALUE;
HANDLE hOut = INVALID_HANDLE_VALUE;
@@ -1383,7 +1395,10 @@ process_easy(
return INVALID_HANDLE_VALUE;
}
}
- tmpOut = GetStdHandle (STD_OUTPUT_HANDLE);
+ if (outfd >= 0)
+ tmpOut = (HANDLE)_get_osfhandle (outfd);
+ else
+ tmpOut = GetStdHandle (STD_OUTPUT_HANDLE);
if (DuplicateHandle(GetCurrentProcess(),
tmpOut,
GetCurrentProcess(),
@@ -1410,7 +1425,10 @@ process_easy(
return INVALID_HANDLE_VALUE;
}
}
- tmpErr = GetStdHandle(STD_ERROR_HANDLE);
+ if (errfd >= 0)
+ tmpErr = (HANDLE)_get_osfhandle (errfd);
+ else
+ tmpErr = GetStdHandle(STD_ERROR_HANDLE);
if (DuplicateHandle(GetCurrentProcess(),
tmpErr,
GetCurrentProcess(),
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 04:13:19 +0000