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PR 5990

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* descriptors.h (Open_descriptor): Add is_on_stack field.
	* descriptors.cc (Descriptors::open): If the descriptor is on the
	top of the stack, remove it.  Initialize is_on_stack field.
	(Descriptors::release): Only add pod to stack if it is not on the
	stack already.
	(Descriptors::close_some_descriptor): Clear stack_next and
	is_on_stack fields.
This commit is contained in:
Ian Lance Taylor
2009-02-28 03:05:08 +00:00
parent e29e076ab8
commit 61edd21fa4
3 changed files with 22 additions and 1 deletions
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12
gold/descriptors.cc
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@ -75,6 +75,12 @@ Descriptors::open(int descriptor, const char* name, int flags, int mode)
{
gold_assert(!pod->inuse);
pod->inuse = true;
if (descriptor == this->stack_top_)
{
this->stack_top_ = pod->stack_next;
pod->stack_next = -1;
pod->is_on_stack = false;
}
return descriptor;
}
}
@ -114,6 +120,7 @@ Descriptors::open(int descriptor, const char* name, int flags, int mode)
pod->stack_next = -1;
pod->inuse = true;
pod->is_write = (flags & O_ACCMODE) != O_RDONLY;
pod->is_on_stack = false;
++this->current_;
if (this->current_ >= this->limit_)
@ -158,10 +165,11 @@ Descriptors::release(int descriptor, bool permanent)
else
{
pod->inuse = false;
if (!pod->is_write)
if (!pod->is_write && !pod->is_on_stack)
{
pod->stack_next = this->stack_top_;
this->stack_top_ = descriptor;
pod->is_on_stack = true;
}
}
}
@ -193,6 +201,8 @@ Descriptors::close_some_descriptor()
this->stack_top_ = pod->stack_next;
else
this->open_descriptors_[last].stack_next = pod->stack_next;
pod->stack_next = -1;
pod->is_on_stack = false;
return true;
}
last = i;