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* dtable.cc (dtable::set_file_pointers_for_exec): New function. 

* dtable.h (dtable::set_file_pointers_for_exec): Declare new function.
* spawn.cc (spawn_guts): Call dtable::set_file_pointers_for_exec to set
pointers to EOF when execing non-cygwin applications.
This commit is contained in:
Christopher Faylor 2002-10-17 17:45:09 +00:00
parent e9350b6575
commit fef1edbc9a
4 changed files with 20 additions and 0 deletions
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7
winsup/cygwin/ChangeLog
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@ -1,3 +1,10 @@
2002-10-17 Christopher Faylor <cgf@redhat.com>
* dtable.cc (dtable::set_file_pointers_for_exec): New function.
* dtable.h (dtable::set_file_pointers_for_exec): Declare new function.
* spawn.cc (spawn_guts): Call dtable::set_file_pointers_for_exec to set
pointers to EOF when execing non-cygwin applications.
2002-10-17 Robert Collins <rbtcollins@hotmail.com>
* thread.h (pthread_mutex::isGoodInitializerOrBadObject): Declare.

11
winsup/cygwin/dtable.cc
View File

@ -574,6 +574,17 @@ dtable::fixup_before_exec (DWORD target_proc_id)
ReleaseResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "fixup_before_exec");
}
void
dtable::set_file_pointers_for_exec ()
{
SetResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "set_file_pointers_for_exec");
fhandler_base *fh;
for (size_t i = 0; i < size; i++)
if ((fh = fds[i]) != NULL && fh->get_flags () & O_APPEND)
SetFilePointer (fh->get_handle (), 0, 0, FILE_END);
ReleaseResourceLock (LOCK_FD_LIST, WRITE_LOCK | READ_LOCK, "fixup_before_exec");
}
void
dtable::fixup_after_exec (HANDLE parent)
{

1
winsup/cygwin/dtable.h
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@ -78,6 +78,7 @@ public:
operator fhandler_base **() {return fds;}
void stdio_init ();
void get_debugger_info ();
void set_file_pointers_for_exec ();
};
void dtable_init (void);

1
winsup/cygwin/spawn.cc
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@ -621,6 +621,7 @@ spawn_guts (const char * prog_arg, const char *const *argv,
cygbench ("spawn-guts");
cygheap->fdtab.set_file_pointers_for_exec ();
if (!cygheap->user.issetuid ())
{
PSECURITY_ATTRIBUTES sec_attribs = sec_user_nih (sa_buf);