This commit was manufactured by cvs2svn to create branch 'cygwin_daemon'.

Cherrypick from master 2002-02-25 17:47:51 UTC Corinna Vinschen <corinna@vinschen.de> '	* cygwin.din (fstat64): New symbol.':
    winsup/cygwin/hires.h
    winsup/cygwin/how-spawn-works.txt
    winsup/cygwin/include/cygwin/grp.h
    winsup/cygwin/include/cygwin/stat.h
    winsup/cygwin/wsock_event.h

5 files changed, 227 insertions, 0 deletions

diff --git a/winsup/cygwin/hires.h b/winsup/cygwin/hires.h
new file mode 100644
index 000000000..c341aa287
--- /dev/null
+++ b/winsup/cygwin/hires.h
@@ -0,0 +1,24 @@
+/* hires.h: Definitions for hires clock calculations
+
+   Copyright 2002 Red Hat, Inc.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef __HIRES_H__
+#define __HIRES_H__
+
+class hires
+{
+  int inited;
+  LARGE_INTEGER primed_ft;
+  LARGE_INTEGER primed_pc;
+  double freq;
+  void prime () __attribute__ ((regparm (1)));
+ public:
+  LONGLONG usecs (bool justdelta) __attribute__ ((regparm (2)));
+};
+#endif /*__HIRES_H__*/
diff --git a/winsup/cygwin/how-spawn-works.txt b/winsup/cygwin/how-spawn-works.txt
new file mode 100644
index 000000000..e4e25eae9
--- /dev/null
+++ b/winsup/cygwin/how-spawn-works.txt
@@ -0,0 +1,32 @@
+Spawn.cc in cygwin handles spawn, vfork and exec calls. It does this via
+a mode parameter that determines its behaviour with respect to the
+child.
+
+Of particular interest is the exec behaviour.
+
+In general spawn_guts (where the action happens) does the following:
+* Finds the actual program being run (which may include path searching).
+* Determines the type (.exe, shell script, perl etc) and for non binary
+programs finds the correct interpreter.
+* Creates a commandline (based on the type and the user parameters).
+* Guesses at whether the binary that will be invoked is a cygwin program
+or not (if (real_path.iscygexec ())) and uses that information to copy
+the argv table, or to translate it for win32 program usage.
+* passes a handle to the parent to the child (note: this handle should
+have it's rights restricted  the daemon is merged).
+* Start the process.
+* if the mode is _P_OVERLAY (we are doing an exec)
+wait for the child to
+a) if it's a cygwin process, signal us via an event.
+b) if it's a win32 process, exit.
+c) exit.
+
+If a) occurs, we 'reparent' the child which makes it look to the current
+process's parent in the pid and process group chains.
+b) is where the cygwin process hangs around as a 'stub' presenting it's
+pid as the win32 process's pid, to allow cygwin tools to kill the win32
+process.
+once a-c has occured, execution resumes.
+* If the mode is _P_OVERLAY, this process exits, otherwise it's
+behaviour depends on the mode parameter. See the last block of
+spawn_guts.
diff --git a/winsup/cygwin/include/cygwin/grp.h b/winsup/cygwin/include/cygwin/grp.h
new file mode 100644
index 000000000..3a58e2058
--- /dev/null
+++ b/winsup/cygwin/include/cygwin/grp.h
@@ -0,0 +1,46 @@
+/* cygwin/grp.h
+
+   Copyright 2002 Red Hat Inc.
+   Written by Corinna Vinschen <corinna@vinschen.de>
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef _CYGWIN_GRP_H_
+#define _CYGWIN_GRP_H_
+
+#include <sys/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __INSIDE_CYGWIN__
+struct __group16
+{
+  char *gr_name;
+  char *gr_passwd;
+  __gid16_t gr_gid;
+  char **gr_mem;
+};
+
+struct __group32
+{
+  char *gr_name;
+  char *gr_passwd;
+  __gid32_t gr_gid;
+  char **gr_mem;
+};
+
+struct __group16 * getgrgid (__gid16_t gid);
+struct __group16 * getgrnam (const char *name);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CYGWIN_GRP_H_ */
diff --git a/winsup/cygwin/include/cygwin/stat.h b/winsup/cygwin/include/cygwin/stat.h
new file mode 100644
index 000000000..90abc3999
--- /dev/null
+++ b/winsup/cygwin/include/cygwin/stat.h
@@ -0,0 +1,93 @@
+/* cygwin/stat.h
+
+   Copyright 2002 Red Hat Inc.
+   Written by Corinna Vinschen <corinna@vinschen.de>
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef _CYGWIN_STAT_H
+#define _CYGWIN_STAT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __INSIDE_CYGWIN__
+struct __stat32
+{
+  dev_t         st_dev;
+  ino_t         st_ino;
+  mode_t        st_mode;
+  nlink_t       st_nlink;
+  __uid16_t     st_uid;
+  __gid16_t     st_gid;
+  dev_t         st_rdev;
+  __off32_t     st_size;
+  time_t        st_atime;
+  long          st_spare1;
+  time_t        st_mtime;
+  long          st_spare2;
+  time_t        st_ctime;
+  long          st_spare3;
+  blksize_t     st_blksize;
+  __blkcnt32_t  st_blocks;
+  long          st_spare4[2];
+};
+
+struct __stat64
+{
+  dev_t         st_dev;
+  ino_t         st_ino;
+  mode_t        st_mode;
+  nlink_t       st_nlink;
+  __uid32_t     st_uid;
+  __gid32_t     st_gid;
+  dev_t         st_rdev;
+  __off64_t     st_size;
+  time_t        st_atime;
+  long          st_spare1;
+  time_t        st_mtime;
+  long          st_spare2;
+  time_t        st_ctime;
+  long          st_spare3;
+  blksize_t     st_blksize;
+  __blkcnt64_t  st_blocks;
+  long          st_spare4[2];
+};
+
+extern int fstat64 (int fd, struct __stat64 *buf);
+extern int stat64 (const char *file_name, struct __stat64 *buf);
+extern int lstat64 (const char *file_name, struct __stat64 *buf);
+
+#endif
+
+struct stat
+{ 
+  dev_t         st_dev;
+  ino_t         st_ino;
+  mode_t        st_mode;
+  nlink_t       st_nlink;
+  uid_t         st_uid;
+  gid_t         st_gid;
+  dev_t         st_rdev;
+  off_t         st_size;
+  time_t        st_atime;
+  long          st_spare1;
+  time_t        st_mtime;
+  long          st_spare2;
+  time_t        st_ctime;
+  long          st_spare3;
+  blksize_t     st_blksize;
+  blkcnt_t      st_blocks;
+  long          st_spare4[2];
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CYGWIN_STAT_H */
diff --git a/winsup/cygwin/wsock_event.h b/winsup/cygwin/wsock_event.h
new file mode 100644
index 000000000..3f8638134
--- /dev/null
+++ b/winsup/cygwin/wsock_event.h
@@ -0,0 +1,32 @@
+/* wsock_event.h: Defining the wsock_event class
+
+   Copyright 2002 Red Hat, Inc.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#ifndef __WSOCK_EVENT_H__
+#define __WSOCK_EVENT_H__
+
+class wsock_event
+{
+  WSAEVENT		event;
+  WSAOVERLAPPED		ovr;
+public:
+  wsock_event () : event (NULL) {};
+  ~wsock_event ()
+    {
+      if (event)
+	WSACloseEvent (event);
+      event = NULL;
+    };
+
+  /* The methods are implemented in net.cc */
+  LPWSAOVERLAPPED prepare ();
+  int wait (int socket, LPDWORD flags);
+};
+
+#endif /* __WSOCK_EVENT_H__ */