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* cygheap.cc (cfree): Remove malloc debugging probe.

Browse Source 
* dlmalloc.c (errprint): Remove abort() call which causes interesting error
message printing to abort prematurely.
* environ.cc: Sprinkle MALLOC_CHECKs liberally throughout.
(_addenv): Allocate two empty elements at end of environ to
(apparently) work around problems with some buggy applications.
(winenv): Avoid calling alloca if no forced environment variable is present.

* exceptions.cc (open_stackdumpfile): Don't print "Dumping stack trace to..."
when running in a cygwin environment (i.e., the parent is a cygwin process).

* dtable.cc (dtable::init_std_file_from_handle): Move device type detection
code from build_fhandler here since it is only used by this function.
(dtable::build_fhandler_from_name): New method.  Renamed from
dtable::build_fhandler.
(dtable::build_fhandler): Use build_fhandler_from_name.
(cygwin_attach_handle_to_fd): Ditto.
* syscalls.cc (_open): Ditto.
(stat_worker): Ditto.
* dtable.h (dtable::build_fhandler_from_name): Rename declaration from
dtable::build_fhandler.
This commit is contained in:
Christopher Faylor
2001-10-03 03:49:26 +00:00
parent b519ee2a4e
commit ebd645e7e6
8 changed files with 119 additions and 75 deletions
Download Patch File Download Diff File Expand all files Collapse all files

79
winsup/cygwin/dtable.cc
View File

@@ -168,22 +168,39 @@ dtable::release (int fd)
}
}
extern "C"
int
cygwin_attach_handle_to_fd (char *name, int fd, HANDLE handle, mode_t bin,
DWORD myaccess)
{
if (fd == -1)
fd = cygheap->fdtab.find_unused_handle ();
path_conv pc;
fhandler_base *res = cygheap->fdtab.build_fhandler_from_name (fd, name, handle,
pc);
res->init (handle, myaccess, bin);
return fd;
}
void
dtable::init_std_file_from_handle (int fd, HANDLE handle,
DWORD myaccess)
dtable::init_std_file_from_handle (int fd, HANDLE handle, DWORD myaccess)
{
int bin;
const char *name = NULL;
const char *name;
CONSOLE_SCREEN_BUFFER_INFO buf;
struct sockaddr sa;
int sal = sizeof (sa);
DCB dcb;
first_fd_for_open = 0;
if (__fmode)
bin = __fmode;
else
bin = binmode ?: 0;
first_fd_for_open = 0;
/* See if we can consoleify it - if it is a console,
don't open it in binary. That will screw up our crlfs*/
CONSOLE_SCREEN_BUFFER_INFO buf;
if (GetConsoleScreenBufferInfo (handle, &buf))
{
if (ISSTATE (myself, PID_USETTY))
@@ -192,7 +209,7 @@ dtable::init_std_file_from_handle (int fd, HANDLE handle,
name = "/dev/conout";
bin = 0;
}
else if (FlushConsoleInputBuffer (handle))
else if (GetNumberOfConsoleInputEvents (handle, (DWORD *) &buf))
{
if (ISSTATE (myself, PID_USETTY))
name = "/dev/tty";
@@ -204,56 +221,28 @@ dtable::init_std_file_from_handle (int fd, HANDLE handle,
{
if (fd == 0)
name = "/dev/piper";
else if (fd == 1 || fd == 2)
else
name = "/dev/pipew";
if (bin == 0)
bin = O_BINARY;
}
else if (wsock_started && getpeername ((SOCKET) handle, &sa, &sal) == 0)
name = "/dev/socket";
else if (GetCommState (handle, &dcb))
name = "/dev/ttyS0"; // FIXME - determine correct device
else
name = "unknown disk file";
path_conv pc;
build_fhandler (fd, name, handle, pc)->init (handle, myaccess, bin);
build_fhandler_from_name (fd, name, handle, pc)->init (handle, myaccess, bin);
set_std_handle (fd);
paranoid_printf ("fd %d, handle %p", fd, handle);
}
extern "C"
int
cygwin_attach_handle_to_fd (char *name, int fd, HANDLE handle, mode_t bin,
DWORD myaccess)
{
if (fd == -1)
fd = cygheap->fdtab.find_unused_handle ();
path_conv pc;
fhandler_base *res = cygheap->fdtab.build_fhandler (fd, name, handle, pc);
res->init (handle, myaccess, bin);
return fd;
}
fhandler_base *
dtable::build_fhandler (int fd, const char *name, HANDLE handle, path_conv& pc,
unsigned opt, suffix_info *si)
dtable::build_fhandler_from_name (int fd, const char *name, HANDLE handle,
path_conv& pc, unsigned opt, suffix_info *si)
{
if (!name && handle)
{
struct sockaddr sa;
int sal = sizeof (sa);
CONSOLE_SCREEN_BUFFER_INFO cinfo;
DCB dcb;
if (GetNumberOfConsoleInputEvents (handle, (DWORD *) &cinfo))
name = "/dev/conin";
else if (GetConsoleScreenBufferInfo (handle, &cinfo))
name = "/dev/conout";
else if (wsock_started && getpeername ((SOCKET) handle, &sa, &sal) == 0)
name = "/dev/socket";
else if (GetFileType (handle) == FILE_TYPE_PIPE)
name = "/dev/pipe";
else if (GetCommState (handle, &dcb))
name = "/dev/ttyS0"; // FIXME - determine correct device
else
name = "some disk file";
}
pc.check (name, opt | PC_NULLEMPTY, si);
if (pc.error)
{
@@ -338,7 +327,7 @@ dtable::build_fhandler (int fd, DWORD dev, const char *name, int unit)
{
/* FIXME - this could recurse forever */
path_conv pc;
return build_fhandler (fd, name, NULL, pc);
return build_fhandler_from_name (fd, name, NULL, pc);
}
}